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The neutron capture cross section of several key unstable isotopes acting as branching points in the s-process are crucial for stellar nucleosynthesis studies, but they are very challenging to measure due to the difficult production of sufficient sample material, the high activity of the resulting samples, and the actual (n,γ) measurement, for which high neutron fluxes and effective background rejection capabilities are required. As part of a new program to measure some of these important branching points, radioactive targets of 147Pm and 171Tm have been produced by irradiation of stable isotopes at the ILL high flux reactor. Neutron capture on 146Nd and 170Er at the reactor was followed by beta decay and the resulting matrix was purified via radiochemical separation at PSI. The radioactive targets have been used for time-of-flight measurements at the CERN n_TOF facility using the 19 and 185 m beam lines during 2014 and 2015. The capture cascades were detected using a set of four C6D6 scintillators, allowing to observe the associated neutron capture resonances. The results presented in this work are the first ever determination of the resonance capture cross section of 147Pm and 171Tm. Activation experiments on the same 147Pm and 171Tm targets with a high-intensity 30 keV quasi-Maxwellian flux of neutrons will be performed using the SARAF accelerator and the Liquid-Lithium Target (LiLiT) in order to extract the corresponding Maxwellian Average Cross Section (MACS). The status of these experiments and preliminary results will be presented and discussed as well.
We derive three exact sum rules for the spectral function of the electromagnetic current with zero spatial momentum at finite temperature. Possible applications of the three sum rules to lattice computations of the spectral function and transport coefficients are also discussed: We propose an ansatz for the spectral function that can be applied to all three sum rules and fit it to available lattice data of the Euclidean vector correlator above the critical temperature. As a result, we obtain estimates for both the electrical conductivity σ and the second order transport coefficient τJ.
An important experimental program on Nuclear Astrophysics is being carried out at the n_TOF since several years, in order to address the still open issues in stellar and primordial nucleosynthesis. Several neutron capture reactions relevant to s-process nucleosynthesis have been measured so far, some of which on important branching point radioisotopes. Furthermore, the construction of a second experimental area has recently opened the way to challenging measurements of (n, charged particle) reactions on isotopes of short half-life. The Nuclear Astrophysics program of the n_TOF Collaboration is here described, with emphasis on recent results relevant for stellar nucleosynthesis, stellar neutron sources and primordial nucleosynthesis.
The spent fuel of current nuclear reactors contains fissile plutonium isotopes that can be combined with 238U to make mixed oxide (MOX) fuel. In this way the Pu from spent fuel is used in a new reactor cycle, contributing to the long-term sustainability of nuclear energy. The use of MOX fuels in thermal and fast reactors requires accurate capture and fission cross sections. For the particular case of 242Pu, the previous neutron capture cross section measurements were made in the 70's, providing an uncertainty of about 35% in the keV region. In this context, the Nuclear Energy Agency recommends in its “High Priority Request List” and its report WPEC-26 that the capture cross section of 242Pu should be measured with an accuracy of at least 7–12% in the neutron energy range between 500 eV and 500 keV. This work presents a brief description of the measurement performed at n_TOF-EAR1, the data reduction process and the first ToF capture measurement on this isotope in the last 40 years, providing preliminary individual resonance parameters beyond the current energy limits in the evaluations, as well as a preliminary set of average resonance parameters.
The Cosmological Lithium Problem refers to the large discrepancy between the abundance of primordial 7Li predicted by the standard theory of Big Bang Nucleosynthesis and the value inferred from the so-called “Spite plateau” in halo stars. A possible explanation for this longstanding puzzle in Nuclear Astrophysics is related to the incorrect estimation of the destruction rate of 7Be, which is responsible for the production of 95% of primordial Lithium. While charged-particle induced reactions have mostly been ruled out, data on the 7Be(n,α) and 7Be(n,p) reactions are scarce or completely missing, so that a large uncertainty still affects the abundance of 7Li predicted by the standard theory of Big Bang Nucleosynthesis. Both reactions have been measured at the n_TOF facility at CERN, providing for the first time data in a wide neutron energy range.
The 33S(n,α)30Si cross section measurement, using 10B(n,α) as reference, at the n_TOF Experimental Area 2 (EAR2) facility at CERN is presented. Data from 0.01 eV to 100 keV are provided and, for the first time, the cross section is measured in the range from 0.01 eV to 10 keV. These data may be used for a future evaluation of the cross section because present evaluations exhibit large discrepancies. The 33S(n,α)30Si reaction is of interest in medical physics because of its possible use as a cooperative target to boron in Neutron Capture Therapy (NCT).
High precision measurement of the radiative capture cross section of 238U at the n_TOF CERN facility
(2017)
The importance of improving the accuracy on the capture cross-section of 238U has been addressed by the Nuclear Energy Agency, since its uncertainty significantly affects the uncertainties of key design parameters for both fast and thermal nuclear reactors. Within the 7th framework programme ANDES of the European Commission three different measurements have been carried out with the aim of providing the 238U(n,γ) cross-section with an accuracy which varies from 1 to 5%, depending on the energy range. Hereby the final results of the measurement performed at the n_TOF CERN facility in a wide energy range from 1 eV to 700 keV will be presented.
New results are presented of the 234U neutron-induced fission cross section, obtained with high accuracy in the resonance region by means of two methods using the 235U(n,f) as reference. The recent evaluation of the 235U(n,f) obtained with SAMMY by L. C. Leal et al. (these Proceedings), based on previous n_TOF data [1], has been used to calculate the 234U(n,f) cross section through the 234U/235U ratio, being here compared with the results obtained by using the n_TOF neutron flux.
The CERN n_TOF neutron beam facility is characterized by a very high instantaneous neutron flux, excellent TOF resolution at the 185 m long flight path (EAR-1), low intrinsic background and coverage of a wide range of neutron energies, from thermal to a few GeV. These characteristics provide a unique possibility to perform high-accuracy measurements of neutron-induced reaction cross-sections and angular distributions of interest for fundamental and applied Nuclear Physics. Since 2001, the n_TOF Collaboration has collected a wealth of high quality nuclear data relevant for nuclear astrophysics, nuclear reactor technology, nuclear medicine, etc. The overall efficiency of the experimental program and the range of possible measurements has been expanded with the construction of a second experimental area (EAR-2), located 20 m on the vertical of the n_TOF spallation target. This upgrade, which benefits from a neutron flux 30 times higher than in EAR-1, provides a substantial extension in measurement capabilities, opening the possibility to collect data on neutron cross-section of isotopes with short half-lives or available in very small amounts. This contribution will outline the main characteristics of the n_TOF facility, with special emphasis on the new experimental area. In particular, we will discuss the innovative features of the EAR-2 neutron beam that make possible to perform very challenging measurements on short-lived radioisotopes or sub-mg samples, out of reach up to now at other neutron facilities around the world. Finally, the future perspectives of the facility will be presented.
Neutron-induced reaction cross sections are important for a wide variety of research fields ranging from the study of nuclear level densities, nucleosynthesis to applications of nuclear technology like design, and criticality and safety assessment of existing and future nuclear reactors, radiation dosimetry, medical applications, nuclear waste transmutation, accelerator-driven systems and fuel cycle investigations. Simulations and calculations of nuclear technology applications largely rely on evaluated nuclear data libraries. The evaluations in these libraries are based both on experimental data and theoretical models. CERN’s neutron time-of-flight facility n_TOF has produced a considerable amount of experimental data since it has become fully operational with the start of its scientific measurement programme in 2001. While for a long period a single measurement station (EAR1) located at 185 m from the neutron production target was available, the construction of a second beam line at 20 m (EAR2) in 2014 has substantially increased the measurement capabilities of the facility. An outline of the experimental nuclear data activities at n_TOF will be presented.
The 236U isotope plays an important role in nuclear systems, both for future and currently operating ones. The actual knowledge of the capture reaction of this isotope is satisfactory in the thermal region, but it is considered insufficient for Fast Reactor and ADS applications. For this reason the 236U(n, γ) reaction cross-section has been measured for the first time in the whole energy region from thermal energy up to 1 MeV at the n_TOF facility with two different detection systems: an array of C6D6 detectors, employing the total energy deposited method, and a FX1 total absorption calorimeter (TAC), made of 40 BaF2 crystals. The two n_TOF data sets agree with each other within the statistical uncertainty in the Resolved Resonance Region up to 800 eV, while sizable differences (up to ≃ 20%) are found relative to the current evaluated data libraries. Moreover two new resonances have been found in the n_TOF data. In the Unresolved Resonance Region up to 200 keV, the n_TOF results show a reasonable agreement with previous measurements and evaluated data.
The accurate knowledge of the neutron-induced fission cross-sections of actinides and other isotopes involved in the nuclear fuel cycle is essential for the design of advanced nuclear systems, such as Generation-IV nuclear reactors. Such experimental data can also provide the necessary feedback for the adjustment of nuclear model parameters used in the evaluation process, resulting in the further development of nuclear fission models. In the present work, the 240Pu(n,f) cross-section was measured at CERN's n_TOF facility relative to the well-known 235U(n,f) cross section, over a wide range of neutron energies, from meV to almost MeV, using the time-of-flight technique and a set-up based on Micromegas detectors. This measurement was the first experiment to be performed at n_TOF's new experimental area (EAR-2), which offers a significantly higher neutron flux compared to the already existing experimental area (EAR-1). Preliminary results as well as the experimental procedure, including a description of the facility and the data handling and analysis, are presented.
Short range particle repulsion is rather important property of the hadronic and nuclear matter equations of state. We present a novel equation of state which is based on the virial expansion for the multicomponent mixtures with hard-core repulsion. In addition to the hard-core repulsion taken into account by the proper volumes of particles, this equation of state explicitly contains the surface tension which is induced by another part of the hard-core repulsion between particles. At high densities the induced surface tension vanishes and the excluded volume treatment of hard-core repulsion is switched to its proper volume treatment. Possible applications of this equation of state to a description of hadronic multiplicities measured in A+A collisions, to an investigation of the nuclear matter phase diagram properties and to the neutron star interior modeling are discussed.
A novel approach to identify the geometrical (anti)clusters formed by the Polyakov loops of the same sign and to study their properties in the lattice SU(2) gluodynamics is developed. The (anti)cluster size distributions are analyzed for the lattice coupling constant β ∈ 2 [2:3115; 3]. The found distributions are similar to the ones existing in 2- and 3-dimensional Ising systems. Using the suggested approach, we explain the phase transition in SU(2) gluodynamics at β = 2.52 as a transition between two liquids during which one of the liquid droplets (the largest cluster of a certain Polyakov loop sign) experiences a condensation, while another droplet (the next to the largest cluster of opposite Polyakov loop sign) evaporates. The clusters of smaller sizes form two accompanying gases, which behave oppositely to their liquids. The liquid drop formula is used to analyze the distributions of the gas (anti)clusters and to determine their bulk, surface and topological parts of free energy. Surprisingly, even the monomer multiplicities are reproduced with high quality within such an approach. The behavior of surface tension of gaseous (anti)clusters is studied. It is shown that this quantity can serve as an order parameter of the deconfinement phase transition in SU(2) gluodynamics. Moreover, the critical exponent β of surface tension coefficient of gaseous clusters is found in the upper vicinity of critical temperature. Its value coincides with the one found for 3-dimensional Ising model within error bars. The Fisher topological exponent τ of (anti)clusters is found to have the same value 1:806±0:008, which agrees with an exactly solvable model of the nuclear liquid-gas phase transition and disagrees with the Fisher droplet model, which may evidence for the fact that the SU(2) gluodynamics and the model are in the same universality class.
We present a novel equation of state which is based on the virial expansion for the multicomponent mixtures with hard core repulsion. The suggested equation of state explicitly contains the surface tension which is induced by particle interaction. At high densities such a surface tension vanishes and in this way it switches the excluded volume treatment of hard core repulsion to its eigen volume treatment. The great advantage of the developed model is that the number of equations to be solved is two and it does not depend on the number of independent hard-core radii. Using the suggested equation of state we obtained a high quality fit of the hadron multiplicities measured at AGS, SPS, RHIC and ALICE energies and studied the properties of the nuclear matter phase diagram. It is shown the developed equation of state is softer than the gas of hard spheres and remains causal up to the several normal nuclear densities. Therefore, it could be applied to the neutron star interior modeling.
Neutron capture and β− -decay are competing branches of the s-process nucleosynthesis path at 85Kr [1], which makes it an important branching point. The knowledge of its neutron capture cross section is therefore essential to constrain stellar models of nucleosynthesis. Despite its importance for different fields, no direct measurement of the cross section of 85Kr in the keV-regime has been performed. The currently reported uncertainties are still in the order of 50% [2, 3]. Neutron capture cross section measurements on a 4% enriched 85Kr gas enclosed in a stainless steel cylinder were performed at Los Alamos National Laboratory (LANL) using the Detector for Advanced Neutron Capture Experiments (DANCE). 85Kr is radioactive isotope with a half life of 10.8 years. As this was a low-enrichment sample, the main contaminants, the stable krypton isotopes 83Kr and 86Kr, were also investigated. The material was highly enriched and contained in pressurized stainless steel spheres.
We review the recent developments of analytic solutions in transverse magneto-hydrodynamics under Bjorken expansion. It is found that the time dependence of magnetic fields can either increase or reduce the energy density depending on the decay exponent of magnetic fields. Moreover, perturbative solutions under weak magnetic fields with spatial inhomogeneity results in transverse flow, where the directions of flow also depend on the decay exponent of magnetic fields in time.
HADES experiment at GSI is the only high precision experiment probing nuclear matter in the beam energy range of a few AGeV. Pion, proton and ion beams are used to study rare dielectron and strangeness probes to diagnose properties of strongly interacting matter in this energy regime. Selected results from p + A and A + A collisions are presented and discussed.
We measured the neutron capture cross sections of 69Ga and 71Ga for a quasi-stellar spectrum at kBT = 25 keV and a spectrum with a peak energy at 90 keV by the activation technique at the Joint Research Centre (JRC) in Geel, Belgium. Protons were provided by an electrostatic Van de Graaff accelerator to produce neutrons via the reaction 7Li(p,n). The produced activity was measured via the γ emission of the product nuclei by high-purity germanium detectors. We present preliminary results.
The aim of this work is to provide a precise and accurate measurement of the 238U(n,γ) reaction cross section in the energy region from 1 eV to 700 keV. This reaction is of fundamental importance for the design calculations of nuclear reactors, governing the behavior of the reactor core. In particular, fast reactors, which are experiencing a growing interest for their ability to burn radioactive waste, operate in the high energy region of the neutron spectrum. In this energy region most recent evaluations disagree due to inconsistencies in the existing measurements of up to 15%. In addition, the assessment of nuclear data uncertainty performed for innovative reactor systems shows that the uncertainty in the radiative capture cross section of 238U should be further reduced to 1–3% in the energy region from 20 eV to 25 keV. To this purpose, addressed by the Nuclear Energy Agency as a priority nuclear data need, complementary experiments, one at the GELINA and two at the n_TOF facility, were proposed and carried out within the 7th Framework Project ANDES of the European Commission. The results of one of these 238U(n,γ) measurements performed at the n_TOF CERN facility are presented in this work. The γ-ray cascade following the radiative neutron capture has been detected exploiting a setup of two C6D6 liquid scintillators. Resonance parameters obtained from this work are on average in excellent agreement with the ones reported in evaluated libraries. In the unresolved resonance region, this work yields a cross section in agreement with evaluated libraries up to 80 keV, while for higher energies our results are significantly higher.
Organized by Sabine Schulte im Walde (University of Stuttgart) and Eva Smolka (University of Konstanz) as part of the 39th Annual Conference of the German Linguistic Society (DGfS) held at the Saarland University in Saarbrücken, Germany, the workshop aimed “to shed light on the interaction of constituent properties and compound transparency across languages and disciplines integrating linguistic, psycholinguistic, corpus-based and computational studies”. The workshop brought together researchers from linguistics, psycholinguistics, and natural language processing and comprised 11 contributed talks, framed by two invited talks by Gary Libben and Marco Marelli. Most of the slides are available from the workshop’s homepage at “http://www.ims.uni-stuttgart.de/events/dgfs-mwe-17/program.html”.
Lexical categories and processes of category change. Perspectives for a constructionist approach
(2017)
This paper revisits the notions of lexical category and category change from a constructionist perspective. I distinguish between four processes of category change (affixal derivation, conversion, transposition and reanalysis) and demonstrate how these category-changing processes can be analyzed in the framework of Construction Grammar. More particularly, it will be claimed that lexical categories can be understood as abstract instances of constructions (i.e., form-function pairings) and category change will be assumed to be closely connected to the process of constructionalization, i.e., the creation of new form-meaning pairings. Furthermore, it will be shown that the constructionist approach offers the advantage of accounting for the variety of input categories (ranging from morphemes to multi-word units) as well as for some problematic characteristics related to certain types of category change, such as context-sensitivity, counterdirectionality and gradualness of the changes.
We analyze English and Greek nominal synthetic compounds like truck driver and truck driving from a syntactic perspective couched within Distributed Morphology. We derive the main differences between the two languages from the different morphosyntactic status of the non-head nouns, which are roots in Greek but categorized words in English.
When binary systems of neutron stars merge, a very small fraction of their rest mass is ejected, either dynamically or secularly. This material is neutron-rich and its nucleosynthesis provides the astrophysical site for the production of heavy elements in the Universe, together with a kilonova signal confirming neutron-star mergers as the origin of short gamma-ray bursts. We perform full general-relativistic simulations of binary neutron-star mergers employing three different nuclear-physics equations of state (EOSs), considering both equal- and unequal-mass configurations, and adopting a leakage scheme to account for neutrino radiative losses. Using a combination of techniques, we carry out an extensive and systematic study of the hydrodynamical, thermodynamical, and geometrical properties of the matter ejected dynamically, employing the WinNet nuclear-reaction network to recover the relative abundances of heavy elements produced by each configurations. Among the results obtained, three are particularly important. First, we find that, within the sample considered here, both the properties of the dynamical ejecta and the nucleosynthesis yields are robust against variations of the EOS and masses. Second, using a conservative but robust criterion for unbound matter, we find that the amount of ejected mass is ≲10−3 M⊙, hence at least one order of magnitude smaller than what normally assumed in modelling kilonova signals. Finally, using a simplified and gray-opacity model we assess the observability of the infrared kilonova emission finding, that for all binaries the luminosity peaks around ∼1=2 day in the H-band, reaching a maximum magnitude of −13, and decreasing rapidly after one day.
We investigate the effect of large magnetic fields on the (2 + 1)-dimensional reduced-magnetohydrodynamical expansion of hot and dense nuclear matter produced in √sNN = 200 GeV Au+Au collisions. For the sake of simplicity,we consider the casewhere themagnetic field points in the direction perpendicular to the reaction plane. We also consider this field to be external, with energy density parametrized as a two-dimensional Gaussian. The width of the Gaussian along the directions orthogonal to the beam axis varies with the centrality of the collision. The dependence of the magnetic field on proper time (τ ) for the case of zero electrical conductivity of the QGP is parametrized following Deng et al. [Phys. Rev. C 85, 044907 (2012)], and for finite electrical conductivity following Tuchin [Phys. Rev. C 88, 024911 (2013)].We solve the equations of motion of ideal hydrodynamics for such an external magnetic field. For collisions with nonzero impact parameter we observe considerable changes in the evolution of the momentum eccentricities of the fireball when comparing the case when the magnetic field decays in a conducting QGP medium and when no magnetic field is present. The elliptic-flow coefficient v2 of π− is shown to increase in the presence of an external magnetic field and the increment in v2 is found to depend on the evolution and the initial magnitude of the magnetic field.
Ion optical calculations for a storage ring at the present GSI facility for direct proton-induced reactions relevant for different astrophysical processes are presented. As an example case, the 59Cu(p,γ) and 59Cu(p,α) reactions are shown. The branching of these two reactions is important in X-ray burst scenarios, since it determines the breakout out of the major 56Ni waiting point.
One of the aims of the SPARC collaboration [1] at FAIR is to perform precision atomic physics expe- riments with highly charged heavy ions at the High Energy Storage Ring (HESR). An internal target is indis- pensably an integral part for many such experiments. Ions with different charge states, which are obtained as a result of interaction of an ion beam with the target, need to be effectively separated and detected. In this work we present ion optical studies unambiguously showing the feasibility of SPARC experiments at the HESR.
Electron identification with a likelihood method and measurements of di-electrons for the CBM-TRD
(2017)
In this work a likelihood method has been implemented and investigated as particle identification algorithm for the CBM-TRD.
The creation of the probability distributions for the likelihood method via V0-topologies seems to be feasible and the purity of the obtained samples is sufficient for the usage in the likelihood method.
The comparison between the ANN and the likelihood method shows no differences in the identification performance. The pion suppression factor reaches the same values for the same electron identification efficiencies and the yields of the resulting di-lepton signals are comparable. The signal-to-background ratios for both methods have the same values and show a value of about 10−2 in the invariant mass range of minv = 1.5 - 2.5 GeV/c2, which is expected to be sufficient to provide access to the thermal in-medium and QGP radiation.
The investigation of a detector system without a TRD shows no pion suppression for a momentum above p = 6 GeV/c. Therefore, the background contributions increase drastically and the signal-to-background ratio decreases at all invariant masses, but especially in the invariant mass range of minv = 1.5 - 2.5 GeV/c2.
The background contributions in the invariant mass range of minv = 1.5 - 2.5 GeV/c 2 are also influenced by the selected electron identification efficiency of the TRD, which significantly shifts the fraction of the eπ contributions relative to the total number of pairs.
The 124Xe(p,γ) reaction has been measured for the first time at energies around the Gamow window by using stored ions at the ESR facility. The desired beam energies below 10 MeV/u introduce new experimental challenges like windowless ions detection under UHV conditions, extremely short beam lifetimes and efficient beam deceleration and cooling, all of which have been successfully met.
We discuss the possibility to build a neutron target for nuclear reaction studies in inverse kinematics utilizing a storage ring and radioactive ion beams. The proposed neutron target is a specially designed spallation target surrounded by a large moderator of heavy water (D2O). We present the resulting neutron spectra and their properties as a target. We discuss possible realizations at different experimental facilities.
Anisotropic collective flow of protons resulting from non-central heavy ion collisions is a unique hadronic observable providing information about the early stage of the nuclear collision. The analysis of collective flow in the energy regime between 1-2 AGeV enables the study of the phase diagram of hadronic matter at a high baryochemical potential µb, as well as the analysis of the equation of state at densities up to the threefold of the ground state density ρ0.
The algorithms of the standard event plane method and the scalar product method are used to analyse directed and elliptic flow of protons in a centrality range of 0-40 % most central events.
Prior to the analysis of experimental data, the respective influence of the reconstruction procedure on the algorithms is examined using Monte Carlo simulations based on the Ultra relativistic Quantum Molecular Dynamics (UrQMD) model.
Subsequently, experimental data measured in April 2012 with the High Acceptance DiElectron Spectrometer (HADES) is analysed using both methods. About 7.3 · 109 Au+Au events at a kinetic beam energy of 1.23 AGeV, equivalent to a centre of mass energy of √sNN = 2.42 GeV were recorded. A multi-differential analysis is feasible as the HADES detector provides a good transverse momentum and rapidity coverage.
Both algorithms result in identical values for directed and elliptic flow across all centrality classes within the observable phase space of protons. The calculated integrated value of v2 at mid rapidity is in good agreement with world data.
In April and May 2012 data on Au+Au collisions at beam energies of Ekin = 1.23A GeV were collected with the High Acceptance Di-Electron Spectrometer (HADES) at the GSI Helmholtzzentrum für Schwerionenforschung facility in Darmstadt, Germany. In this thesis, the production of deuterons in this collision system is investigated.
A total number of 2.1 × 109 Au+Au events is selected, containing the most central 0-40% of events. After particle identification, based on a mass determination via time-of-flight and momentum and on a measurement of the energy loss, the transverse mass spectra of the deuteron candidates are extracted for various rapidities and subsequently corrected for acceptance and efficiency.
The inverse slope parameter of a Boltzmann fit applied to the transverse mass spectra at midrapidity, which is referred to as the effective temperature, is extracted. For a static thermal source, this parameter corresponds to the kinetic freeze-out temperature Tkin and is therefore expected to be smaller or equal to the chemical freeze-out temperature Tchem. The extracted effective temperature of Tef f = (190 ± 10) MeV however exceeds the chemical freeze-out temperature that was obtained by a statistical model fit to different particle yields. The effective temperatures of various particle species, obtained in previous analyses, suggest a systematic rise with increasing particle mass, which is confirmed by the deuteron results.
An explanation can be the influence of a collective expansion with a radial expansion velocity βr. By fitting a Siemens-Rasmussen function to the transverse mass spectra, the global temperature of T = (100 ± 8) MeV and radial expansion velocity βr = 0.37 ± 0.01 are obtained. This temperature is still very high and only takes into account the production of deuteron nuclei.
The simultaneous fit of a blast-wave function to the transverse mass spectra of deuterons and other particles, as obtained by previous analyses, considers a velocity profile for the radial expansion velocity and takes into account the production of various particle species. The resulting global temperature Tkin = (68 ± 1) MeV and average transverse expansion velocity hβri = 0.341 ± 0.003 are within the expected range for the collision energy.
The Siemens-Rasmussen fits are also used to extrapolate the transverse mass spectra into unmeasured regions, to integrate them and obtain a rapidity-dependent count rate. This count rate exhibits a thermal shape for central events and shows increasing spectator contributions for more peripheral events.
The invariant yield spectra of the deuterons are compared to those of protons, as obtained by a previous analysis, in the context of a nucleon coalescence model. The hereby extracted nucleon coalescence factor B2 = (4.6 ± 0.1) × 10−3 agrees with the expected result for the beam energy that was studied.
We present the charged-particle multiplicity distributions over a wide pseudorapidity range (−3.4<η<5.0) for pp collisions at s√=0.9,7, and 8 TeV at the LHC. Results are based on information from the Silicon Pixel Detector and the Forward Multiplicity Detector of ALICE, extending the pseudorapidity coverage of the earlier publications and the high-multiplicity reach. The measurements are compared to results from the CMS experiment and to PYTHIA, PHOJET and EPOS LHC event generators, as well as IP-Glasma calculations.
We present measurements of ρ0, ω and K∗0 spectra in π−+ C production interactions at 158 GeV / c and ρ0 spectra at 350 GeV / c using the NA61/SHINE spectrometer at the CERN SPS. Spectra are presented as a function of the Feynman’s variable xF in the range 0<xF<1 and 0<xF<0.5 for 158 and 350 GeV / c respectively. Furthermore, we show comparisons with previous measurements and predictions of several hadronic interaction models. These measurements are essential for a better understanding of hadronic shower development and for improving the modeling of cosmic ray air showers.
The production of beauty hadrons was measured via semi-leptonic decays at mid-rapidity with the ALICE detector at the LHC in the transverse momentum interval 1<p T < 8 GeV/c in minimum-bias p-Pb collisions at sNN−−−√=5.02 TeV and in 1.3 < p T < 8 GeV/c in the 20% most central Pb-Pb collisions at sNN−−−√=2.76 TeV. The pp reference spectra at sNN−−−√=5.02 TeV and s√=2.76 TeV, needed for the calculation of the nuclear modification factors R pPb and R PbPb, were obtained by a pQCD-driven scaling of the cross section of electrons from beauty-hadron decays measured at s√=7 TeV. In the p T interval 3 < p T < 8 GeV/c, a suppression of the yield of electrons from beauty-hadron decays is observed in Pb-Pb compared to pp collisions. Towards lower p T, the R PbPb values increase with large systematic uncertainties. The R pPb is consistent with unity within systematic uncertainties and is well described by theoretical calculations that include cold nuclear matter effects in p-Pb collisions. The measured R pPb and these calculations indicate that cold nuclear matter effects are small at high transverse momentum also in Pb-Pb collisions. Therefore, the observed reduction of R PbPb below unity at high p T may be ascribed to an effect of the hot and dense medium formed in Pb-Pb collisions.
The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at sNN−−−√=2.76 TeV and p-Pb collisions at sNN−−−√=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. These correlations are measured for the second, third and fourth order flow vector in the pseudorapidity region |η| < 0.8 as a function of centrality and transverse momentum p T using two observables, to search for evidence of p T-dependent flow vector fluctuations. For Pb-Pb collisions at 2.76 TeV, the measurements indicate that p T-dependent fluctuations are only present for the second order flow vector. Similar results have been found for p-Pb collisions at 5.02 TeV. These measurements are compared to hydrodynamic model calculations with event-by-event geometry fluctuations in the initial state to constrain the initial conditions and transport properties of the matter created in Pb–Pb and p–Pb collisions.
Two-particle angular correlations were measured in pp collisions at s√=7 TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon–baryon and anti-baryon–anti-baryon pairs, where both particles have the same baryon number, a near-side anti-correlation structure is observed instead of a peak. This effect is interpreted in the context of baryon production mechanisms in the fragmentation process. It currently presents a challenge to Monte Carlo models and its origin remains an open question.
Measurement of deuteron spectra and elliptic flow in Pb–Pb collisions at √sNN = 2.76 TeV at the LHC
(2017)
The transverse momentum (pT) spectra and elliptic flow coefficient (v2) of deuterons and anti-deuterons at mid-rapidity (|y|<0.5) are measured with the ALICE detector at the LHC in Pb–Pb collisions at sNN−−−√ = 2.76 TeV. The measurement of the pT spectra of (anti-)deuterons is done up to 8 GeV/c in 0–10% centrality class and up to 6 GeV/c in 10–20% and 20–40% centrality classes. The v2 is measured in the 0.8 < pT < 5 GeV/c interval and in six different centrality intervals (0–5, 5–10, 10–20, 20–30, 30–40 and 40–50%) using the scalar product technique. Measured π ±, K± and p+p¯¯¯ transverse-momentum spectra and v2 are used to predict the deuteron pT spectra and v2 within the Blast-Wave model. The predictions are able to reproduce the v2 coefficient in the measured pT range and the transverse-momentum spectra for pT > 1.8 GeV/c within the experimental uncertainties. The measurement of the coalescence parameter B2 is performed, showing a pT dependence in contrast with the simplest coalescence model, which fails to reproduce also the measured v2 coefficient. In addition, the coalescence parameter B2 and the elliptic flow coefficient in the 20–40% centrality interval are compared with the AMPT model which is able, in its version without string melting, to reproduce the measured v2(pT) and the B2(pT) trend.
The invariant differential cross sections for inclusive π0 and η mesons at midrapidity were measured in pp collisions at s√=2.76 TeV for transverse momenta 0.4<pT<40 GeV/c and 0.6<pT<20 GeV/c, respectively, using the ALICE detector. This large range in pT was achieved by combining various analysis techniques and different triggers involving the electromagnetic calorimeter (EMCal). In particular, a new single-cluster, shower-shape based method was developed for the identification of high-pT neutral pions, which exploits that the showers originating from their decay photons overlap in the EMCal. Above 4 GeV/c, the measured cross sections are found to exhibit a similar power-law behavior with an exponent of about 6.3. Next-to-leading-order perturbative QCD calculations differ from the measured cross sections by about 30% for the π0, and between 30–50% for the η meson, while generator-level simulations with PYTHIA 8.2 describe the data to better than 10–30%, except at pT<1 GeV/c. The new data can therefore be used to further improve the theoretical description of π0 and η meson production.
The transverse momentum distributions of the strange and double-strange hyperon resonances (Σ(1385)±, Ξ(1530)0) produced in p–Pb collisions at sNN−−−√=5.02 TeV were measured in the rapidity range −0.5<yCMS<0 for event classes corresponding to different charged-particle multiplicity densities, ⟨dNch/dηlab⟩. The mean transverse momentum values are presented as a function of ⟨dNch/dηlab⟩, as well as a function of the particle masses and compared with previous results on hyperon production. The integrated yield ratios of excited to ground-state hyperons are constant as a function of ⟨dNch/dηlab⟩. The equivalent ratios to pions exhibit an increase with ⟨dNch/dηlab⟩, depending on their strangeness content.
The azimuthal correlations of D mesons with charged particles were measured with the ALICE apparatus in pp collisions at s√=7 TeV and p–Pb collisions at sNN−−−√=5.02 TeV at the Large Hadron Collider. D0, D+, and D∗+ mesons and their charge conjugates with transverse momentum 3<pT<16 GeV/c and rapidity in the nucleon-nucleon centre-of-mass system |ycms|<0.5 (pp collisions) and −0.96<ycms<0.04 (p–Pb collisions) were correlated to charged particles with pT>0.3 GeV/c. The yield of charged particles in the correlation peak induced by the jet containing the D meson and the peak width are compatible within uncertainties in the two collision systems. The data are described within uncertainties by Monte-Carlo simulations based on PYTHIA, POWHEG, and EPOS 3 event generators.
We present the charged-particle pseudorapidity density in Pb–Pb collisions at √sNN = 5.02 TeV in centrality classes measured by ALICE. The measurement covers a wide pseudorapidity range from −3.5 to 5, which is sufficient for reliable estimates of the total number of charged particles produced in the collisions. For the most central (0–5%) collisions we find 21 400 ± 1 300, while for the most peripheral (80–90%) we find 230 ± 38. This corresponds to an increase of (27 ± 4)% over the results at √sNN = 2.76 TeV previously reported by ALICE. The energy dependence of the total number of charged particles produced in heavy-ion collisions is found to obey a modified power-law like behaviour. The chargedparticle pseudorapidity density of the most central collisions is compared to model calculations — none of which fully describes the measured distribution. We also present an estimate of the rapidity density of charged particles. The width of that distribution is found to exhibit a remarkable proportionality to the beam rapidity, independent of the collision energy from the top SPS to LHC energies.
Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy √sNN = 2.76 TeV. The transverse momentum (pT) differential production yields at mid-rapidity were used to calculate the nuclear modification factor RAA in the interval 3 < pT < 18 GeV/c. The RAA shows a strong suppression compared to binary scaling of pp collisions at the same energy (up to a factor of 4) in the 10% most central Pb–Pb collisions. There is a centrality trend of suppression, and a weaker suppression (down to a factor of 2) in semi-peripheral (50–80%) collisions is observed. The suppression of electrons in this broad pT interval indicates that both charm and beauty quarks lose energy when they traverse the hot medium formed in Pb–Pb collisions at LHC.
We report the direct virtual photon invariant yields in the transverse momentum ranges 1 < pT < 3 GeV/c and 5 < pT < 10 GeV/c at mid-rapidity derived from the dielectron invariant mass continuum region 0.10 < Mee < 0.28 GeV/c2 for 0–80% minimum-bias Au+Au collisions at √sN N = 200 GeV. A clear excess in the invariant yield compared to the nuclear overlap function T A A scaled p + p reference is observed in the pT range 1 < pT < 3 GeV/c. For pT > 6 GeV/c the production follows T A A scaling. Model calculations with contributions from thermal radiation and initial hard parton scattering are consistent ithin uncertainties with the direct virtual photon invariant yield.
Monte Carlo (MC) simulations are an essential tool to determine fundamental features of a neutron beam, such as the neutron flux or the γ-ray background, that sometimes can not be measured or at least not in every position or energy range. Until recently, the most widely used MC codes in this field had been MCNPX and FLUKA. However, the Geant4 toolkit has also become a competitive code for the transport of neutrons after the development of the native Geant4 format for neutron data libraries, G4NDL. In this context, we present the Geant4 simulations of the neutron spallation target of the n_TOF facility at CERN, done with version 10.1.1 of the toolkit. The first goal was the validation of the intra-nuclear cascade models implemented in the code using, as benchmark, the characteristics of the neutron beam measured at the first experimental area (EAR1), especially the neutron flux and energy distribution, and the time distribution of neutrons of equal kinetic energy, the so-called Resolution Function. The second goal was the development of a Monte Carlo tool aimed to provide useful calculations for both the analysis and planning of the upcoming measurements at the new experimental area (EAR2) of the facility.
The accuracy on neutron capture cross section of fissile isotopes must be improved for the design of future nuclear systems such as Gen-IV reactors and Accelerator Driven Systems. The High Priority Request List of the Nuclear Energy Agency, which lists the most important nuclear data requirements, includes also the neutron capture cross sections of fissile isotopes such as 233,235U and 239,241Pu. A specific experimental setup has been used at the CERN n_TOF facility for the measurement of the neutron capture cross section of 235U by a set of micromegas fission detectors placed inside a segmented BaF2 Total Absorption Calorimeter.
New neutron cross section measurements of minor actinides have been performed recently in order to reduce the uncertainties in the evaluated data, which is important for the design of advanced nuclear reactors and, in particular, for determining their performance in the transmutation of nuclear waste. We have measured the 241Am(n,γ) cross section at the n_TOF facility between 0.2 eV and 10 keV with a BaF2 Total Absorption Calorimeter, and the analysis of the measurement has been recently concluded. Our results are in reasonable agreement below 20 eV with the ones published by C. Lampoudis et al. in 2013, who reported a 22% larger capture cross section up to 110 eV compared to experimental and evaluated data published before. Our results also indicate that the 241Am(n,γ) cross section is underestimated in the present evaluated libraries between 20 eV and 2 keV by 25%, on average, and up to 35% for certain evaluations and energy ranges.
The KASCADE-Grande experiment has significantly contributed to the current knowledge about the energy spectrum and composition of cosmic rays for energies between the knee and the ankle. Meanwhile, post-LHC versions of the hadronic interaction models are available and used to interpret the entire data set of KASCADE-Grande. In addition, a new, combined analysis of both arrays, KASCADE and Grande, was developed significantly increasing the accuracy of the shower observables. First results of the new analysis with the entire data set of the KASCADE-Grande experiment will be the focus of this contribution.
The experimental area 2 (EAR-2) at CERNs neutron time-of-flight facility (n_TOF), which is operational since 2014, is designed and built as a short-distance complement to the experimental area 1 (EAR-1). The Parallel Plate Avalanche Counter (PPAC) monitor experiment was performed to characterize the beam pro↓le and the shape of the neutron 'ux at EAR-2. The prompt γ-flash which is used for calibrating the time-of-flight at EAR-1 is not seen by PPAC at EAR-2, shedding light on the physical origin of this γ-flash.
The second and the third order anisotropic flow, V2 and V3, are mostly determined by the corresponding initial spatial anisotropy coefficients, ε2 and ε3, in the initial density distribution. In addition to their dependence on the same order initial anisotropy coefficient, higher order anisotropic flow, Vn (n > 3), can also have a significant contribution from lower order initial anisotropy coefficients, which leads to mode-coupling effects. In this Letter we investigate the linear and non-linear modes in higher order anisotropic flow Vn for n = 4, 5, 6 with the ALICE detector at the Large Hadron Collider. The measurements are done for particles in the pseudorapidity range |η| < 0.8 and the transverse momentum range 0.2 < pT < 5.0 GeV/c as a function of collision centrality. The results are compared with theoretical calculations and provide important constraints on the initial conditions, including initial spatial geometry and its fluctuations, as well as the ratio of the shear viscosity to entropy density of the produced system.
The inclusive J/ψ transverse momentum spectra and nuclear modification factors are reported at midrapidity (|y| < 1.0) in Au+Au collisions at √sN N = 39, 62.4 and 200 GeV taken by the STAR experiment. A suppression of J/ψ production, with respect to the production in p + p scaled by the number of binary nucleon–nucleon collisions, is observed in central Au+Au collisions at these three energies. No significant energy dependence of nuclear modification factors is found within uncertainties. The measured nuclear modification factors can be described by model calculations that take into account both suppression of direct J/ψ production due to the color screening effect and J/ψ regeneration from recombination of uncorrelated charm–anticharm quark pairs.
We present the first ever measurements of femtoscopic correlations between the K0 S and K± particles. The analysis was performed on the data from Pb–Pb collisions at √sNN = 2.76 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters for K0 SK− are found to be equal within the experimental uncertainties to those for K0 SK+. Comparing the results of the present study with those from published identical-kaon femtoscopic studies by ALICE, mass and coupling parameters for the a0 resonance are tested. Our results are also compatible with the interpretation of the a0 having a tetraquark structure instead of that of a diquark
The archaeological data dealt with in our database solution Antike Fundmünzen in Europa (AFE), which records finds of ancient coins, is entered by humans. Based on the Linked Open Data (LOD) approach, we link our data to Nomisma.org concepts, as well as to other resources like Online Coins of the Roman Empire (OCRE). Since information such as denomination, material, etc. is recorded for each single coin, this information should be identical for coins of the same type. Unfortunately, this is not always the case, mostly due to human errors. Based on rules that we implemented, we were able to make use of this redundant information in order to detect possible errors within AFE, and were even able to correct errors in Nomimsa.org. However, the approach had the weakness that it was necessary to transform the data into an internal data model. In a second step, we therefore developed our rules within the Linked Open Data world. The rules can now be applied to datasets following the Nomisma. org modelling approach, as we demonstrated with data held by Corpus Nummorum Thracorum (CNT). We believe that the use of methods like this to increase the data quality of individual databases, as well as across different data sources and up to the higher levels of OCRE and Nomisma.org, is mandatory in order to increase trust in them.
Das undatierte englischsprachige Manuskript von "Apocalypse and Politics" von Jacob Taubes (1923-1987) stammt vermutlich aus den späten 1960er Jahren. In diesem in seiner Originalfassung im ZfL Blog erstmals veröffentlichten Text stellt der Berliner Religionsphilosoph Überlegungen zur Vergleichbarkeit messianischer Kulte und der Entwicklung nationalistischer Befreiungsbewegungen in Afrika und Asien an und plädiert dabei für einen religionssoziologischen Ansatz.
Master of science in international economics and economic policy : guidelines winter term 2017/2018
(2017)
HADES is a fixed target experiment using SIS18 heavy-ion beams. It investigates the microscopic properties of matter formed in heavy-ion, proton and pion - induced reactions in the 1-3.5 GeV/u energy regime. In 2014 HADES used a secondary pion beam produced by interaction between high-intensity nitrogen primary beam and a beryllium target. In these conditions beam losses, generated by slow extraction and beam transport to the experimental area, led to activation of the beam line elements and triggered radiation alarms. The primary beam intensity had to be reduced and the beam optics modified in order to keep radiation levels within the allowed limits. Similar beam conditions are requested by HADES experiment for upcoming run in 2018 and in the following years. Therefore, a number of measures have been proposed to improve beam transmission and quality. These measures are: additional shielding, additional beam instrumentation, modification of beam optics and increase of vacuum chambers' apertures in critical locations. The optics study and preliminary results of FLUKA simulations for optimization of location of loss detectors are presented.
Due to the massive parallel operation modes at GSI accelerators, a lot of accelerator setup and re-adjustment has to be made by operators during a beam time. This is typically done manually using potentiometers and is very time-consuming. With the FAIR project the complexity of the accelerator facility increases further and for efficiency reasons it is recommended to establish a high level of automation for future operation. Modern Accelerator Control Systems allow a fast access to both, accelerator settings and beam diagnostics data. This provides the opportunity to implement algorithms for automated adjustment of e.g. magnet settings to maximize transmission and optimize required beam parameters. The fast-switching magnets in GSI-beamlines are an optimal basis for an automatic exploration of the parameter-space. The optimization of the parameters for the SIS18 multi-turn-injection using a genetic algorithm has already been simulated*. The first results of our automatized online parameter optimization at the CRYRING@ESR injector are presented here.
Glucose homeostasis is tightly regulated by insulin production from ß-cells and glucagon production from α-cells. Changes in the balance of these hormones lead to Diabetes Mellitus (DM), which is foreseen to be the 7th leading cause of death by 2030, warranting a high demand to identify new therapeutics. DM is characterized by a reduction in ß-cell mass and reduced insulin production from ß-cells. α-cell development and fate mainly depend on the activity of the homeodomain-containing transcription factor Aristaless related homeobox (Arx). Conditional loss- of- function of Arx in α-cells leads to their conversion into functional insulin-producing ß-cells and thus an expansion of ß-cell mass. Therefore, inhibition of Arx is an interesting target for the expansion of ß-cells. The zebrafish model provides a fast, cost-effective and reliable translational platform for drug discovery in an in vivo setting. Here, we screened ~6217 small molecules on a transgenic zebrafish line (TgBAC(arxa:Luc2)) in which the arx promoter drives the expression of the luciferase gene which allows a sensitive and quantitative readout of promoter activity. Small molecule screening allowed us to identify 36 candidate repressors of arxa promoter activity. Furthermore, we started to validate these candidates in other assays. Preliminary results showed that DMAT (a potent CK2 inhibitor) and CNS-1102 (NMDA receptor inhibitor) increase functional ß-cell regeneration. By lineage tracing α-cells during ß-cell regeneration, we could show that both DMAT and CNS-1102 promote α- to ß-cell transdifferentiation. Here, we propose that Casein kinase II and NMDA receptor as potential molecular targets that could be exploited for the treatment of diabetes by generating functional beta-cells from the non-beta-cell progenitor, particularly alpha-cells in situ.
Knowledge for justice : critical perspectives from southern african-nordic research partnerships
(2017)
With the adoption of the United Nations Sustainable Development Goals (SDGs) and the Paris Agreement, the purpose of development is being redefined in both social and environmental terms. Despite pushback from conservative forces, change is accelerating in many sectors. To drive this transformation in ways that bring about social, environmental and economic justice at a local, national, regional and global levels, new knowledge and strong cross-regional networks capable of foregrounding different realities, needs and agendas will be essential. In fact, the power of knowledge matters today in ways that humanity has probably never experienced before, placing an emphasis on the roles of research, academics and universities. In this collection, an international diverse collection of scholars from the southern African and Nordic regions critically review the SDGs in relation to their own areas of expertise, while placing the process of knowledge production in the spotlight. In Part I, the contributors provide a sober assessment of the obstacles that neo-liberal hegemony presents to substantive transformation. In Part Two, lessons learned from NorthSouth research collaborations and academic exchanges are assessed in terms of their potential to offer real alternatives. In Part III, a set of case studies supply clear and nuanced analyses of the scale of the challenges faced in ensuring that no one is left behind. This accessible and absorbing collection will be of interest to anyone interested in NorthSouth research networks and in the contemporary debates on the role of knowledge production. The Southern AfricanNordic Centre (SANORD) is a network of higher education institutions that stretches across Denmark, Finland, Iceland, Norway, Sweden, Botswana, Namibia, Malawi, South Africa, Zambia and Zimbabwe. Universities in the southern African and Nordic regions that are not yet members are encouraged to join.
To understand the policy environment within which refugees establish and operate their enterprises in South Africa's informal sector, this report brings together two streams of policy analysis. The first concerns the changing refugee policies and the erosion of the progressive approach that characterized the immediate post-apartheid period. The second concerns the informal sector policy, which oscillates between tolerance and attempted destruction at national and municipal levels. While there have been longstanding tensions between foreign and South African informal sector operators, an overtly anti-foreign migrant sentiment has increasingly been expressed in official policy and practice. This report describes the strategies being used to turn South Africa into an undesirable destination for refugees, including the setting up of additional procedural, administrative and logistical hurdles; the undercutting of court judgments affirming the right of asylum-seekers and refugees to employment and self-employment; ensuring that protection is always temporary by making it extremely difficult for refugees to progress to permanent residence and eventual citizenship; and restricting opportunities to pursue a livelihood in the informal sector. The authors conclude that the protection of refugee rights is likely to continue to depend on a cohort of non-governmental organizations prioritizing migrant livelihood rights and being willing and able to pursue time-consuming and costly litigation on their behalf.
This book questions colonial and apartheid ideologies on being human and being African, ideologies that continue to shape how research is conceptualised, taught and practiced in universities across Africa. Africans immersed in popular traditions of meaning-making are denied the right, by those who police the borders of knowledge, to think and represent their realities in accordance with the civilisations and universes they know best. Often, the ways of life they cherish are labelled and dismissed too eagerly as traditional knowledge by some of the very African intellectual elite they look to for protection. The book makes a case for sidestepped traditions of knowledge. It draws attention to Africa's possibilities, prospects and emergent capacities for being and becoming in tune with its creativity and imagination. It speaks to the nimble-footed flexible-minded 'frontier African' at the crossroads and junctions of encounters, facilitating creative conversations and challenging regressive logics of exclusionary identities. The book uses Amos Tutuola's stories to question dualistic assumptions about reality and scholarship, and to call for conviviality, interconnections and interdependence between competing knowledge traditions in Africa.
The volume draws from René Devischs encounters with groups in southsaharan Africa, primarily. The author had the privilege to immerse himself, around the clock, in the Yakaphones activities and thoughts in southwest DR Congo from 1972 to 1974, and intermittently in Kinshasas shanty towns, from 1986 to 2003. The author first examines what sparked his choice to come to Congo, and then to pursue research among the Yakaphones in the borderland with Angola. He then invites us to follow the trajectory of his plural anthropological view on todays multicentric world. It leads us to his praise for honorary doctor Jean-Marc Elas work. He then examines the proletarian outbursts of violence that rocked Congos major cities in 1991 and 1993. These can be read as a settling of scores with the disillusioning colonial and missionary modernisation, along with president Mobutus millenarian Popular Movement of the Revolution. Furthermore, after considering the morose reduction of a major Yaka dancing mask into a mere museum-bound curio in Antwerp, the book unravels the Yakaphones perspectives on spirits and sorcerys threat. It also analyses their commitment to classical Bantu-African healing cults, along with their parallel consulting physicians and healers. By sharing the Yakaphones life-world, the analysis highlights their body-group-world weave, interlaced by the principle of co-resonance. A phenomenological and perspectivist look unfolds the local actors views, thereby disclosing the Bantu-African genius and setting for a major reversal of perspectives. Indeed, seeing 'here' from 'there' allows the author to uncover some alienating dynamics at work in his native Belgian Flemish-speaking culture. To better grasp the realm of life beyond the speakable and factual reasoning, the approach occasionally turns to the later Lacans focus on the unconscious desire, the body and its affects. The book addresses students and researchers in the humanities and, more broadly, all those immersed in the heat of the encounter with the culturally different.
The African conundrum... is rooted out of the historical, philosophical and cultural bastardisation, imbalances and inequalities which many post-colonial African governments have always sought to address, though with varying degrees of success, since the 1960s. Lamentably, this African conundrum is rarely examined in a systematic manner that takes into account the geopolitical milieu of the continent, past and present. This volume seeks to interrogate and examine the extent of the impact of the geopolitical seesaw which seems poised to tip in favour of the Global North. The book grapples with the question on how Africa can wake up from its cavernous intellectual slumber to break away from both material and psychological dependency and achieve a transformative political and socio-economic self-reinvention and self-assertion. While the African conundrum is largely a result of historic oppression and a resilient colonial legacy, this book urges Africans to rethink their condition in a manner that makes Africa responsible and accountable for its own destiny. The book argues that it is through this rethinking that Africa can successfully transcend the logic of post-imperial dependency.
There are milliards of off beam assumptions that Africa will always remain immobile in development of whatever type. This pseudo take has mainly been propounded by Western thinkers in order to dubiously make Africans internalise and reinforce this flimsy and flimflam dependency. Africa needs to embark on paradigm shift; and tweak and turn things around. Africa has what it take to do so quickly, especially now that new economic powers such as China and India are evolving as counterweight to the West. Shall Africa use these new economic forces to its advantage based on fair and win-win cooperation? To do so, Africa must make sure that it does not slink back into business as usual vis-a-vis beggarliness, dependence, frailty, gullibility, made-up backwardness, monkey business, and pipedreams, not to mention the nasty and narcissistic behaviours of its venal and navel-gazing rulers. Verily, Africa needs, inter alia, to use its God-given gifts, namely, immense resources, young population, abundance of vast and unexploited amounts of land. Equally, Africa must, without equivocation, invest copiously and earnestly in its people, the youth in the main. Most of all, Africa needs to shy away from all colonial carryovers and encumbrances. This volume shows many ways through and by which Africa can inverse the current imbroglio-cum-no-go it faces for the better; and thereby actualise the dream of being truly independent and prosperous.
This book comprises 19 creative non-fiction pieces and essays centred around the topics of language, thought, art and existence seen through the prism of practising artist in contemporary Africa. The collection continues with Zimbabwe's Tendai Mwanaka's creative non-fiction ideology of presenting non-fiction in a creative, fresh, easy reading, simple language. With most of the essays driven by personal stories, the author ably renders them accessible to a wide spectrum of readers from the scholarly to the journalistic and the general. The pieces are grouped according to the topics, with the language essays starting the book, followed by thought, existential, and art essays. In tune with the adage the personal is political, Mwanaka lets the personal drive these essays as he tries to investigate and conversationally navigate his thoughts, beliefs, feelings and experience on language, existence and art. This is an invaluable contribution to the academic establishment, social theorists, linguists, literary theorists, journalists, activists and the general readership.
Migration from Malawi to South Africa : A Historical and Cultural Novel ; Real-life Experiences
(2017)
Since the discovery and exploitation of minerals like gold, diamond and copper in South Africa, Zimbabwe and Zambia in the late nineteenth and early twentieth centuries, Malawi has played the role of a labour supplier. Malawians were attracted by the relatively higher wages obtaining in the South African mines up to the period of the decline in mine migrancy at the end of the 1980s. Following this decline, a cross-section of Malawians continued to emigrate to South Africa to seek various jobs in the burgeoning informal sector and also for trade purposes. Migration from Malawi to South Africa sheds light on the problems that labour migrants and traders encounter as they are 'toing' and 'froing' between Malawi and South Africa in pursuit of their respective goals. It shows that migration, which initially was exclusively done for wage employment, is becoming more complex by the day. This is a result of the infusion of elements of commercial migration, smuggling and human trafficking. The book advances the argument that the numbers of migrants to South Africa increased in the post-1994 period partly as a result of mal-administration by the successive democratically-elected governments in Malawi. This development weakened Malawi's otherwise promising economy and impoverished the rural masses. The book 'sees' forlorn hope in the future of labour migrants and traders, unless the Malawi Government starts to genuinely have the welfare of the populace at heart! The book is relevant and accessible to policy-makers, university and college students interested in migration studies, general readers and migrants, themselves.
Through multiple points of resistance, The Repressed Expressed underscores how hard it is to build a community in any nation with no beneficial qualities of hope and transparency. This informative collection of essays highlights that wherever stability and order are lacking, the universal appeal is to express that which is suppressed. Also, like a map or guidebook, The Repressed Expressed indicates how people in such geographical prisons strive to transform their agitation into spiritual and political pathways, free of pain and hurt from, and anger towards a dirty and corrupted world. It thus, underpins discord and brings to the fore the authority's penchant for heaping abuse upon those caused to live in fear. In short, The Repressed Expressed is an impressive compilation of literary evidence informing scholarship on opinions and beliefs relating to repression, its expression, and the immeasurable associated cost.
Poetry is fragments of music thrown into the air. The primary job and aim of a poet is to create these musical notes, to play these musical notes, and the wind will take these fragment notes, sounds, musics into the ears of listeners. Zimbolicious Poetry Anthology, Volume 2 is one of those winds among many others. As we all are aware of, when the wind travels it has no boundaries, it collects, it deposits, it mixes things up; you never know where that leaf you see the wind carrying will eventually be deposited, is there another wind, another element that is going to move that leaf to another place... We firmly believe it is a good wind. It will be able to push our poetry making in Zimbabwe into other frontiers. Zimbolicious Poetry Anthology, Volume 2 continues from where we left off with the first Zimbolicious Poetry Anthology we created in 2016. In this Volume 2, we have 77 poems from 30 poets and translators, which include among others; experienced poets, academic poets, street poets, emergent poets, beginning poets, all telling stories associated with what all these poets refer to as home, that is, Zimbabwe. It is an ongoing debate on what is Zimbabwe, what we want our Zimbabwe to be socially, culturally, politically, thus we allowed every opinion space in this anthology, whether us editors agree with them or not. We have poets tackling issues to do with poetry, writing in general, art, place, identity, tradition, struggle, culture, gender, collective understanding, religion, individual, human rights and love, among others.
African societies have rich histories, cultural heritages, knowledge systems, philosophies, and institutions that they have shaped and reshaped through history. However, the continent has been repeatedly portrayed negatively as plagued by multitudinous troubles: famine, conflict, coup, massacres, corruption, disease, illiteracy, refugees, failed state, etc. Even worse, Africans are often viewed as incapable of addressing their problems on their own. Based on such erroneous perspectives and paternalism, exogenous solutions are prescribed, out of context, for African problems. This book sheds light on the positive aspects of African reality under the key concept of 'African potentials'. It is the product of sustained consultation over a five-year period between seasoned African and Japanese anthropologists, sociologists and scholars in other areas of African studies.
This poetry anthology offers a feast and face of poetry as it currently is in Uganda. It is all encompassing and presents a variety of writers ranging from seasoned voices to new ones of great promise. The voices are adventurous, reflective, provocative and even sassy. The poets explore with passion diverse themes from the private to the public realm reassuring the reader that poetry is about everything and is perhaps everything. The pages of this anthology pulsate with rhythmic variations that give unexpected pleasure and provoke the reader to be exceptionally alert. This is a welcome and priceless addition to Uganda Poetry Anthology 2000.
A New History of Tanzania
(2017)
Tanzania, the land and the people have been subject of a great deal of historical research, but there remains no readily accessible and concise history of the country. The aim of this volume is to fill that void. A New History of Tanzania takes its name from a lecture series introduced at the University of Dar es Salaam by Professor Isaria Kimambo in 2002. Prior to that, a book titled, A History of Tanzania, had been published in 1969 by East African Publishing House in Nairobi for the Tanzania Historical Association. That book is currently out of print and this is not a reprint. In this book, Prof. Kimambo has been joined by two other colleagues; Prof. Gregory H. Maddox of Texas Southern University, Houston (USA) and Salvatory S. Nyanto, a Tanzanian, Lecturer at the University of Dar es Salaam, and a Ph.D. candidate at the University of Iowa (USA); together they have produced an outline history of Tanzania that covers all important aspects from antiquity to the present that is different from and richer than its predecessor. Sources from the fields of archaeology, anthropology, biology, genetics and oral tradition have been used to produce this excellent book.
One of the fundamental challenges in deconstructing, rethinking and remaking the world from a Pan African vantage point is that some captives have tended to delight in the warmth of the [imperial] predator's mouth. In other words, some captives forget that the imperial predator's mouth gets warm because empire is eating and heating up from prey on the continent. (De-)Militarisation, Transnational Land Grabs and Restitution in an Age of the New Scramble for Africa: A Pan African Socio-Legal Perspective is a book that knocks on key aspects relating to land, militarisation, a PostAfrican World Order and a chaotic Post-God World Order, which require critical scholarly and policy attention in the quest to free Africa from centuries-old imperial depredations. The book carefully navigates the imperial entrapments which are designed to focus African attention only on decolonising African minds without also engaging in the [imperially more unsettling] decolonisation of African materialities.
African Studies in the Academy : The Cornucopia of Theory, Praxis and Transformation in Africa?
(2017)
For a long time, African Studies as a discipline has been spearheaded by academics and institutions in the Global North. This puts African Studies on the continent at a crossroads of making choices on whether such a discipline can be legitimately accepted as an epistemological discipline seeking objectivity and truth about Africa and the African peoples or a discipline meant to perpetuate the North's hegemonic socio-economic, political and epistemic control over Africa. The compound question that immediately arises is: Who should produce what and which space should African Studies occupy in the academy both of the North and of the South? Confronted by such a question, one wonders whether the existence of African Studies Centres in the Global North academies open opportunities for critical thinking on Africa or it opens possibilities for the emergence of the same discipline in Africa as a fertile space for trans-disciplinary debate. While approaches critical for the development of African Studies are pervasive in African universities through fields such as cultural studies, social anthropology, history, sociology, indigenous knowledge studies and African philosophy, the discipline of African Studies though critical to Africa is rarely practised as such in the African academy and its future on the continent remains bleak. African Studies in the Academy.is a testimony that if honestly and objectively practised, the crossroads position of African Studies as a discipline makes it a fertile ground for generating and testing new approaches critical for researching and understanding Africa. It also challenges Africa to seriously consider assuming its legitimate position to champion African Studies from within. These issues are at the heart of the present volume.
Yves R. Simon (1903-1961), one of the greatest contemporary philosophers, gives a modern formulation for many classical philosophical concepts such as authority, the common good, and natural law. These topics have received extensive attention from scholars. Simon also discusses the nature of human virtue, moral and intellectual, but this topic has been less studied until now. The idea of virtue, and in our case virtue in political life, runs through Simon's works. Through a close study of Simon's works and the relevant secondary literature, this book explores Simon's definition of virtue in order to highlight its originality, and show how he weaves the need for it into the fabric of three facets of political life, namely, the common good, the virtue of the ruler and the ruled, and the law. These ideas are important for the ruler-ship of any country and especially of developing nations which are populated by sit-tight dictators. Philosophy can be dry and abstract, yet in this case we deal with one of its more practical manifestations.
The Ways We Stretch Toward One Another is a collection of essays on the work of Pamela Reynolds. The essays take cues from Reynolds decades-long contributions to the field of anthropology in different ways. The authors weave Reynolds groundbreaking scholarship on the anthropology of childhoodof labour, of family, of resistance, justice, war and sufferingthrough the terms of their own work, in places and contexts that may at first appear quite distant from the villages of Zimbabwe and townships of South Africa that feature in Reynolds ethnographies. The Ways We Stretch Toward One Another is about anthropologists stretching in thought and practice toward one another, between generations, toward the people encountered in the field, through worlds entered and past, and how, in turn, these worlds lean into our own. At the core of each essay is a question about how we learn, how we pass lessons on, how we assume the mantle of anthropology for understanding the contemporary worldsomething that often requires folding intellectual friendships into the tools of our practice. The Ways We Stretch Toward One Another demonstrates how a master anthropologist has come to shape the priorities of others, in terms that are both creative and aware. Contributors: Thomas Cousins, Stefanos Geroulanos, Todd Meyers, Pamela Reynolds, Fiona Ross, and Vaibhav Saria; and a Foreword by Francis B. Nyamnjoh
This is a book on the state of social anthropology as an academic discipline in contemporary Zimbabwe. The authors are frustrated and disheartened by a problematic visibility and sluggish growth of the discipline in the country. The book makes an important claim that the future and vibrancy of anthropology in Zimbabwe, lies in how well anthropologists in the country and in the diaspora are able to join efforts in articulating, debating and enhancing its relevance and vitality. The book provides critical overview and nuanced analyses of the role and continued relevance of the discipline in reading and interpreting the social unfolding of everyday life and dynamism. It is a vital text for understanding and contextualising histories and trends in the development of social anthropology in Zimbabwe and how anthropologists in the country navigate the tumultuous waters and struggles that have engrossed the discipline since colonial times. The book has the capacity to generate added insights and influence national, continental, and global debates and trends in the field.
This book weaves together a rich tapestry on football fandom in Zimbabwe. Based on empirical research focusing on the different dimensions of fan practices and experiences, the book is the result of multiple fieldwork processes with fans in Zimbabwe spanning a period of eight years including desk research, interviews, observation, focus group discussions and netnography. It demonstrates the nexus between social identities and supporting a sports team, highlighting that there are deeper underlying meanings and assumptions to one's support of a sporting team. Manase Chiweshe highlights the various nuances of supporting football clubs. This book provides an alternative way to understanding communities and how sport can be viewed as a serious lens into societal organisations. It offers important insights into how Zimbabweans are also engaged in leisure activities and that play is also part of their life worlds. Given the major focus on poverty, disease and conflict, African stories of intimate play and enjoyment tend to be sidelined. Soccer has the power to bring together or divide communities. In many an African context, just as in Zimbabwe, everyday ethnic and religious rivalries are played out through football matches. It is thus important to capture this space and use football as a way to heal historic and deep-seated conflicts.
This book is a biography based on a qualitative ethnographic study of adaptation to climate by Mr Zephaniah Phiri Maseko, an award-winning smallholder farmer from Zvishavane, rural Zimbabwe. Ethnographic data provides insight and lessons of Mr Phiri Maseko and other farmers' practices for rethinking existing strategies for adaptation to climate change. The concept of adaptation is probed in relationship to the closely related concepts of vulnerability, resilience and innovation. This study also explores the concept of conviviality and argues that Mr Phiri Maseko's adaptation to climate hinges on mediating barriers between local and exogenous knowledge systems. The book argues that Mr Phiri Maseko offered tangible adaptive climate strategies through his innovations that 'marry water and soil so that it won't elope and run-off but raise a family' on his plot. His agricultural practices are anchored on the Shona concept of' hurudza'(an exceptionally productive farmer). This book explores the concept and practices of 'uhurudza,'to suggest that the latter-day 'hurudza' (commercial farmer)'as embodied by Mr Phiri Maseko offers an important set of resources for the development of climate adaptation strategies in the region. This study of smallholder farmers' adoption of innovations to climate highlights the 'complex interplay' of multiple factors that act as barriers to uptake. Such interplay of multiple stressors increases the vulnerability of smallholders. The study concludes by arguing that in as much as the skewed colonial land policy impoverished the smallholder farmers, Mr Phiri Maseko nonetheless redefined himself as a latter-day 'hurudza and thus breaks free from the poverty cycle by conjuring ingenious ways of reducing vulnerability to climate. The book does not suggest that Mr Phiri Maseko's innovations offer a silver bullet solution to the insecure rural livelihoods of smallholder farmers; nevertheless, they are a source of hope in an environment of uncertainty. His steely tenacity in the face of a multi-stressor environment is to be treasured.
Barbed Forest
(2017)
Radical land reform programmes generate changes in agrarian structures and capital accumulation trajectories in the countryside. This book examines how capital accumulation is being reshaped by changing financing and marketing of agricultural commodities and presents an emerging Quadi-PMMR-model agrarian structure composed of the poor, middle, middle-to-rich peasants and some rich capitalists with a growing middle scale farmer base constituting two thirds of the rural population in Zimbabwe. This evidence based assessment, 15 years after the FTLRP, sheds light on policy outcomes and impacts on communities, revealing the changing production, marketing, capital accumulation and class formation tendencies across Zimbabwe's settlement models and agro-ecological settings. The book fuses the reliance on agrarian political economy lenses and factor component analysis to reveal the dynamics of agrarian change and to explore the dialectic between production and circulation and between the centre and periphery in exceptional fashion that expands our understanding of Zimbabwe's agrarian transition.
Words like 'colonialism' and 'empire' were once frowned upon in the U.S. and other Western mainstream media as worn-out left-wing rhetoric that didn't fit reality. Not anymore! Tatah Mentan observes that a growing chorus of right-wing ideologues, with close ties to the Western administrations' war-making hawks in NATO, are encouraging Washington and the rest of Europe to take pride in the expansion of their power over people and nations around the globe. Africa in the Colonial Ages of Empire is written from the perspective that the scholarly lives of academics researching on Africa are changing, constantly in flux and increasingly bound to the demands of Western colonial imperialism. This existential situation has forced the continent to morph into a tool in the hands of Colonial Empire. According to Tatah Mentan, the effects of this existential situation of Africa compel serious academic scrutiny. At the same time, inquiry into the African predicament has been changing and evolving within and against the rhythms of this 'new normal' of Colonial Empire-Old or New. The author insists that the long and bloody history of imperial conquest that began with the dawn of capitalism needs critical scholarly examination. As Marx wrote in Capital: 'The discovery of gold and silver in America, the extirpation, enslavement and entombment in mines of the aboriginal population, the beginning of the conquest and looting of the East Indies, the turning of Africa into a warren for the commercial hunting of black-skins, signaled the rosy dawn of the era of capitalist production. These idyllic proceedings are the chief moment of primitive accumulation.' Africa in the Colonial Ages of Empire is therefore a MUST-READ for faculty, students as well as policy makers alike in the changing dynamics of their profession, be it theoretically, methodologically, or structurally and materially.
Ivory Stars is Tanzanias first ever all-girls football team, but what makes this team even more unique is that they are people with albinism. Disregarded by society, the team is determined to show the world that they wont be held back. As International Albinism Awareness Day approaches, climbing Mount Kilimanjaro would defy stereotypes and prove that they are extraordinarily capable. Join Tatu, the team leader, and the Ivory Stars on their quest to reach the summit of the highest peak in Africa. Find out whether their determination will meet the challenges ahead. How will they manoeuvre through the twists and turns that lie in wait for them? What would it mean for them if they failed?
Although there have been a number of studies on Black resistance, very few of these have focused exclusively on such a wide range of resistance campaigns and strategies within a single volume. One of the central arguments of this study is that from as early as the sixteenth century, when Europeans attempted to systematically exploit Africans, Black people have engaged in a variety of organised and sustained resistance campaigns to assert their independence and identity. This book examines some of the different strategies employed by Black people in Africa and the Diaspora in response to European domination and exploitation. Drawing upon research from scholars based at the University of Cape Coast in Ghana and the University of the West Indies, Jamaica, this collection of original essays, covers the academic disciplines of African and Caribbean history, literature, politics and psychology. Despite these different approaches, the consistent theme throughout, centres on the strategies employed by Black people to resist European domination and oppression, by fighting for their freedom at every possible opportunity, whether they were in Africa, Britain or the Caribbean.
Women in Islam explores the complexities of gender relations in Muslim communities in the Horn of Africa and beyond, engaging critically with the social, political and cultural challenges associated with the intersection of Islam and gender. With an eclectic selection of essays, academic papers, opinion pieces and personal narratives punctuated with poetry and art, the journal seeks to spark creative and forward-looking discussions on how to effectively improve the status of women in Muslim societies. Women in Islam is published annually by SIHA, the Strategic Initiative for Women in the Horn of Africa. Issue Three of Women in Islam includes investigations of social issues, profiles of inspiring women, book and film reviews, poetry, and opinion pieces. The dossier on 'Living With Religious Militancy' explores women's experiences in contexts of conflict and extremism, with articles on the dilemma of female political Islamists, a gender-segregated community in Eastern Sudan, and women of Boko Haram. Other articles include stories of Sufi women, the experience of female convert to Islam, Ziba Mir-Hosseini's quest for equality in Islamic law, and reviews of Wadjda and Timbuktu.
Makerere University started in 1922 as a humble technical school enrolling 14 day students of Carpentry, Building and Mechanics. Nine decades later, the University has made giant strides-enrolling over 35,000 students in over 145 study programmes hosted by nine colleges spread across various campuses. As one of the first higher education institutions in East and Central Africa, the university has had to contend with a multiplicity of issues, including relevance, curricula reform, community engagement and graduate employability; access, equity, massification and quality assurance; national politics, regulation, institutional autonomy and academic freedom; funding and financial management; student politics and activism; staff unionisation, management and brain drain; physical resources expansion, utilisation and maintenance; liberalisation, privatisation, commercialisation and internationalisation; Information and Communication Technology (ICT); and institutional leadership and integrity. Today, the University stands out proudly as a hallmark of innovation and excellence in teaching, research and community engagement, notwithstanding the challenges it has experienced over the years. As it celebrates 90 years, the higher education scholarly and policy fraternity take the opportunity to honour and continue the University's tradition of scholarship and innovation - through contributing ideas for dealing with some of the challenges that the University and similar institutions are contending with. Although studies of Makerere University have been included, it must be understood that this book is not necessarily about the University. Additional studies have been drawn from Botswana, Ethiopia, Ghana, Kenya, Malawi, Nigeria, Tanzania and other institutions in Uganda.
'It is my duty to take the message of revolt to other[s]. is is the only way to liberate the victims of suffering and slavery,' Nazmi Durrani quotes W.L. Sohan in this book. Resistance to imperialism in pre-independence Kenya by progressive South Asian Kenyans propelled the Kenyan liberation struggle to new heights. They were active in almost every field, from publishing progressive newspapers to supplying arms and material to Mau Mau. Liberating Minds consists of biographies of progressive South Asian Kenyans written by Nazmi Durrani. Originally published in Gujarati in the 1980s, they are available here in English for the first time, together with the original Gujarati. Also included is Naila Durrani's 1987 conference paper, 'Kenya Asian Participation in People's Resistance,' while Benegal Pereira introduces Eddie H. Pereira (1915-1995) and his resistance letters to the Colonial Times Newspaper.
In 1996 President Nelson Mandela described Professor Ali A. Mazrui (1933-2014) as 'an outstanding educationist and freedom fighter.' In 2002 the former UN Secretary General Kofi Annan referred to Professor Mazrui as 'Africa's gift to the world.' Author of more than 35 books and hundreds of articles, Professor Mazrui was an African scholar who had treated with uncommon verve and flair a wide-range of themes that included globalization, the triple heritage, peace, and social justice. This volume engages with some of those themes that excited his mind for over six decades. The multidisciplinary essays seek to underline the highlights of Mazrui's intellectual journey and attest to the fact that he was public intellectual par excellence. Indeed, in 2005, he was named one of the top 100 public intellectuals in the world. This book is a product of a symposium held from 15 to 17 July 2016 in Nairobi, Kenya. The symposium was jointly organized by the Twaweza Communications, Nairobi, Kenya, and the Institute of Global Cultural Studies (State University of New York at Binghamton) which Ali Mazrui created and presided over as the Albert Schweitzer Professor in the Humanities from 1991 to 2014.
Knell.Ashes.Seppuku
(2017)
A delinquent son, a barren woman, troubled marriages, a reunion between old childhood friends, and all manner of family drama. This novel's sudden twists and turns have all the makings of a relatable African saga. Tinashe is an intelligent and vibrant young man who is sent to the city of Gweru to further his education at Midlands State University by his father. He is staying with his aunt Margaret who is always fighting with her son Cephas. Tinashe is looking forward to enjoying life and having a great time in the city but things do not seem to be in parallel with his expectations. He later realises this when he is wrongly accused of murdering his aunt, Margaret.
In view of the resilience of Africa's underdevelopment, what do Africans make of their determined aspirations for development? The continent of Africa has constantly drawn global attention, most especially for both human and natural evils. Underdevelopment, it appears, is one of the most eminent threatening evils. It has plunged and promises to maintain the majority of Africa in abject poverty, insecurity, and vulnerability. What perpetuates the ghost and gory of underdevelopment in Africa, despite a proliferation of development rhetoric and initiatives? How do ordinary Africans react to repeated talk and claims of development with little evidence of transformation for the better in their material circumstances? This book interrogates the tenacity of underdevelopment amid calls for Africa to rise from its slumber and reclaim its position in global affairs as the mother continent of humankind. It contributes to the ongoing debates on why Africa remains trapped in the clutch of underdevelopment many decades after the purported end of colonialism. The book comes at a critical time in human history; a time when the talk on Africa's [under-]development is louder due to the ravages of economic downturns and dysfunctional conflicts. It poses a challenge to development practitioners, civil society activists, statesmen, economists, political scientists and theorists to rethink and reconsider their role as technocrats, experts and ambassadors of positive change in Africa and the world beyond.
Thorns and Roses: A Play
(2017)
'When a pen which drips woman, academic, mother, wife, teacher and administrator proposes to visit the stage, we expect the product to be as complex as the person. And we will be entirely justified in our expectation given that the stage more often than not is that place which captures and dramatizes our core selves in all their complexity. Thorns and Roses is produced by just that kind of pen. But in spite of her multi-layered identity, Frida Mbunda has succeeded in writing a play whose greatest attractions lie in its unassuming, down-to-earth appeal. It is the story of a single-parent home where a mother dedicates her life to her loving but vulnerable single daughter. As its title suggests, the play employs the allegorical archetype to colour the stage with characters and issues of immediate relevance. Womanhood is at the centre of Mbunda's dramatic quest. She knows that being a woman means being exposed to the attractions of shortcuts to happiness.' - Professor George Nyamndi, novelist, playwright and literary scholar, University of Buea, Cameroon.