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The inclusive charged particle transverse momentum distribution is measured in proton–proton collisions at s=900 GeV at the LHC using the ALICE detector. The measurement is performed in the central pseudorapidity region (|η|<0.8) over the transverse momentum range 0.15<pT<10 GeV/c. The correlation between transverse momentum and particle multiplicity is also studied. Results are presented for inelastic (INEL) and non-single-diffractive (NSD) events. The average transverse momentum for |η|<0.8 is 〈pT〉INEL=0.483±0.001 (stat.)±0.007 (syst.) GeV/c and 〈pT〉NSD=0.489±0.001 (stat.)±0.007 (syst.) GeV/c, respectively. The data exhibit a slightly larger 〈pT〉 than measurements in wider pseudorapidity intervals. The results are compared to simulations with the Monte Carlo event generators PYTHIA and PHOJET.
The first measurement of two-pion Bose–Einstein correlations in central Pb–Pb collisions at √sNN=2.76 TeV at the Large Hadron Collider is presented. We observe a growing trend with energy now not only for the longitudinal and the outward but also for the sideward pion source radius. The pion homogeneity volume and the decoupling time are significantly larger than those measured at RHIC.
Inclusive transverse momentum spectra of primary charged particles in Pb–Pb collisions at √sNN=2.76 TeV have been measured by the ALICE Collaboration at the LHC. The data are presented for central and peripheral collisions, corresponding to 0–5% and 70–80% of the hadronic Pb–Pb cross section. The measured charged particle spectra in |η|<0.8 and 0.3<pT<20 GeV/c are compared to the expectation in pp collisions at the same sNN, scaled by the number of underlying nucleon–nucleon collisions. The comparison is expressed in terms of the nuclear modification factor RAA. The result indicates only weak medium effects (RAA≈0.7) in peripheral collisions. In central collisions, RAA reaches a minimum of about 0.14 at pT=6–7 GeV/c and increases significantly at larger pT. The measured suppression of high-pT particles is stronger than that observed at lower collision energies, indicating that a very dense medium is formed in central Pb–Pb collisions at the LHC.
We analytically show that a common across rich/poor individuals Stone-Geary utility function with subsistence consumption in the context of a simple two-asset portfolio-choice model is capable of qualitatively explaining: (i) the higher saving rates of the rich, (ii) the higher fraction of personal wealth held in stocks by the rich, and (iii) the higher volatility of consumption of the wealthier. On the contrary, time-variant "keeping-up with the Joneses" weighted average consumption playing the role of moving benchmark subsistence consumption gives the same portfolio composition and saving rates across the rich and the poor, failing to reconcile the model with what micro data say.
Floodplains play an important role in the terrestrial water cycle and are very important for biodiversity. Therefore, an improved representation of the dynamics of floodplain water flows and storage in global hydrological and land surface models is required. To support model validation, we combined monthly time series of satellite-derived inundation areas (Papa et al., 2010) with data on irrigated rice areas (Portmann et al., 2010). In this way, we obtained global-scale time series of naturally inundated areas (NIA), with monthly values of inundation extent during 1993–2004 and a spatial resolution of 0.5°. For most grid cells (0.5°×0.5°), the mean annual maximum of NIA agrees well with the static open water extent of the Global Lakes and Wetlands database (GLWD) (Lehner and Döll, 2004), but in 16% of the cells NIA is larger than GLWD. In some regions, like Northwestern Europe, NIA clearly overestimates inundated areas, probably because of confounding very wet soils with inundated areas. In other areas, such as South Asia, it is likely that NIA can help to enhance GLWD. NIA data will be very useful for developing and validating a floodplain modeling algorithm for the global hydrological model WGHM. For example, we found that monthly NIAs correlate with observed river discharges.
In this chapter we develop an agenda for future research on the personalization of politics. To do so, we clarify the propositions of the personalization hypothesis, critically discuss the normative standard on which most studies base their evaluation of personalization, and systematically summarize empirical research findings. We show that the condemnation of personalization is based on a trivial logic and on a maximalist definition of democracy. The review of empirical studies leads us to question the assumption that personalization has steadily increased in all areas of politics. Finally, our normative considerations help us develop new research questions on how personalized politics affects democracy. Moreover, this review also makes clear that another weakness of today's empirical research on the personalization of politics lies in methodological problems and a lack of analysis of the impacts of systemic and contextual variables. Consequently, we suggest methodological pathways and possible explanatory factors for the study of personalization.
The State of Africa 2010
(2010)
The State of Africa series project was conceived by the Africa Institute of South Africa (AISA) during its 2003-2004 financial year for purposes of mapping out on a regular basis critical issue areas relating to intra- and inter-African as well as extra-African relations. The first and second volumes of the series were published in 2004 and 2008 respectively. Volume 1: The State of Africa: Thematic and Factual Review served as an exploratory piece and covered a broad range of issues relating to politics and governance, millennium development goals (MDGs), peace and conflict and regional development. Volume 2: The State of Africa: Post-Conflict Reconstruction and Development focused thematically and examined - from critical and comprehensive perspectives - issues associated with post-conflict in Africa. The volume was grounded on the continent's quest for conflict prevention, management and resolution as a means of creating an enabling environment for the consolidation of democracy and reconstruction of societies affected by crisis in general and war in particular. This volume, Volume 3: Parameters and Legacies of Governance and Issue Areas takes a multi-pronged and multi-faceted approach to some of these issues by providing in-depth analysis of dynamics at national, regional, continental and international levels. The global transformation in the 1980s and 1990s, which witnessed the crumbling of the Soviet Union, the Warsaw Pact and opened a window of opportunities for East-West bipolar rapprochement, particularly between the United States and Russia, also had impact on Africa at the national, regional and continental levels. Focusing on conceptual units, such as the state, indigenous organisations, regional and continental organisations as well as selected priority issues - in particular gender and empowerment, the global South, and space science - the chapters in the book provide useful insights into the nature and impact of the transformation and its impact on the socio-economic and politico-security situation in Africa.
From the 1980 Maitatsine uprising to the 2009 Boko Haram uprising, Nigeria was bedevilled by ethno-religious conflicts with devastating human and material losses. But the Boko Haram uprising of July 2009 was significant in that it not only set a precedent, but also reinforced the attempts by Islamic conservative elements at imposing a variant of Islamic religious ideology on a secular state. Whereas the religious sensitivity of Nigerians provided fertile ground for the breeding of the Boko Haram sect, the sect’s blossoming was also aided by the prevailing economic dislocation in Nigerian society, the advent of party politics (and the associated desperation of politicians for political power), and the ambivalence of some vocal Islamic leaders, who, though they did not actively embark on insurrection, either did nothing to stop it from fomenting, or only feebly condemned it. These internal factors coupled with growing Islamic fundamentalism around the world make a highly volatile Nigerian society prone to violence, as evidenced by the Boko Haram uprising. Given the approach of the Nigerian state to religious conflict, this violence may remain a recurring problem. This paper documents and analyses the Boko Haram uprising, as well as its links with the promotion of Islamic revivalism and the challenges it poses to the secularity of the Nigerian state.
Variants resistant to compounds specifically targeting HCV are observed in clinical trials. A multi-variant viral dynamic model was developed to quantify the evolution and in vivo fitness of variants in subjects dosed with monotherapy of an HCV protease inhibitor, telaprevir. Variant fitness was estimated using a model in which variants were selected by competition for shared limited replication space. Fitness was represented in the absence of telaprevir by different variant production rate constants and in the presence of telaprevir by additional antiviral blockage by telaprevir. Model parameters, including rate constants for viral production, clearance, and effective telaprevir concentration, were estimated from 1) plasma HCV RNA levels of subjects before, during, and after dosing, 2) post-dosing prevalence of plasma variants from subjects, and 3) sensitivity of variants to telaprevir in the HCV replicon. The model provided a good fit to plasma HCV RNA levels observed both during and after telaprevir dosing, as well as to variant prevalence observed after telaprevir dosing. After an initial sharp decline in HCV RNA levels during dosing with telaprevir, HCV RNA levels increased in some subjects. The model predicted this increase to be caused by pre-existing variants with sufficient fitness to expand once available replication space increased due to rapid clearance of wild-type (WT) virus. The average replicative fitness estimates in the absence of telaprevir ranged from 1% to 68% of WT fitness. Compared to the relative fitness method, the in vivo estimates from the viral dynamic model corresponded more closely to in vitro replicon data, as well as to qualitative behaviors observed in both on-dosing and long-term post-dosing clinical data. The modeling fitness estimates were robust in sensitivity analyses in which the restoration dynamics of replication space and assumptions of HCV mutation rates were varied.
Comparative Historical and Interpretative Study of Religions, is a historical and interpretative study of religions. The work provides a thorough methodological discussion on specific themes, historical figures and movements in Religious Studies. It delves into other themes such as the concepts of God, spirits, mysterious forces, pollution and ritual symbolism. The reference to the Urhobo is a clear demonstration of current efforts by scholars in this area of study to de-emphasise the old forms of generalisation to greater differentiation. This approach provides new impetus for meaningful interpretation and comprehensive examination of the various themes in the light of current scholarhip. Also fundamental an analysis of the methodological problems in the study of African traditional religions. Some remedies which are intended to open new avenues for researchers are highlighted.
The title compound, C22H28N2O6, crystallizes with four half-molecules in the asymmetric unit: each molecule is located about a crystallographic inversion centre. The central methylene groups of two molecules are disordered over two sets of equally occupied sites. The crystal packing is characterized by sheets of molecules parallel to (114).
This report on the broadcast media in Nigeria finds that liberalisation efforts in the broadcasting sector have only been partially achieved. More than a decade after military rule, the nation still has not managed to enact media legislation that is in line with continental standards, particularly the Declaration on Freedom of Expression in Africa. The report, part of an 11-country survey of broadcast media in Africa, strongly recommends the transformation of the two state broadcasters into a genuine public broadcaster as an independent legal entity with editorial independence and strong safeguards against any interference from the federal government, state governments and other interests. The report was written by Mr. Akin Akingbulu Executive Director, Institute for Media and Society, IMS, Nigeria.
Background: Leishmaniasis is a chronic disease that is found in various countries of the world. The aim of the current study was to investigate the impact of leishmaniasis on the world's research output. The present study assessed benchmarking of research output for the period between 1957 and 2006. Using large database analyses, research in the field of leishmaniasis was evaluated. Furthermore, cooperation between different countries was identified.
Results: The number of publications increased with time. Most publications came from Western countries such as the US, UK or Germany. Interestingly, countries like Brazil and India had a high research output. We found a substantial amount of cooperation between countries.
Conclusion: Although leishmaniasis is of limited geographic distribution it attracts a wide research interest. The central hub of research cooperation is the USA.
Forest Echoes
(2010)
Forest Echoes is a literary quilt revealing a mature poet bestriding generations as he patches together a people's culture, their philosophy, history, along with their attendant woes into a subtle, sometimes disillusioning even, yet purposeful and poignant whole. Nol Alembong is not afraid to be himself in this work: a scholar, teacher, parent, traditionalist and, above all, an Anglophone-Cameroonian. Whatever the case, these are magisterial and equally influential individual traits that have merged into a united whole in forging this poet's identity and concerns as evident from the thematic panorama of the poems. In 'Forest Echoes', the title poem, for example, one encounters a poet who, though steeped in his people's struggles, has been able to stand back, watch and evaluate the effects of the interactions of time, events, and society. It is this ability of his, as an involved yet detached observer, along with the trend of events that have scarred his people's lives, which have yielded the powerful emotions that he has assembled in this thematically lush, historically nostalgic, and overwhelmingly evocative collection.' - Dr. Emmanuel Fru Doh
Snake bite is one of the most neglected public health issues in poor rural communities living in the tropics. Because of serious misreporting, the true worldwide burden of snake bite is not known. South Asia is the world's most heavily affected region, due to its high population density, widespread agricultural activities, numerous venomous snake species and lack of functional snake bite control programs. Despite increasing knowledge of snake venoms' composition and mode of action, good understanding of clinical features of envenoming and sufficient production of antivenom by Indian manufacturers, snake bite management remains unsatisfactory in this region. Field diagnostic tests for snake species identification do not exist and treatment mainly relies on the administration of antivenoms that do not cover all of the important venomous snakes of the region. Care-givers need better training and supervision, and national guidelines should be fed by evidence-based data generated by well-designed research studies. Poorly informed rural populations often apply inappropriate first-aid measures and vital time is lost before the victim is transported to a treatment centre, where cost of treatment can constitute an additional hurdle. The deficiency of snake bite management in South Asia is multi-causal and requires joint collaborative efforts from researchers, antivenom manufacturers, policy makers, public health authorities and international funders.
The design, construction, and commissioning of the ALICE Time-Projection Chamber (TPC) is described. It is the main device for pattern recognition, tracking, and identification of charged particles in the ALICE experiment at the CERN LHC. The TPC is cylindrical in shape with a volume close to 90 m3 and is operated in a 0.5 T solenoidal magnetic field parallel to its axis.
In this paper we describe in detail the design considerations for this detector for operation in the extreme multiplicity environment of central Pb–Pb collisions at LHC energy. The implementation of the resulting requirements into hardware (field cage, read-out chambers, electronics), infrastructure (gas and cooling system, laser-calibration system), and software led to many technical innovations which are described along with a presentation of all the major components of the detector, as currently realized. We also report on the performance achieved after completion of the first round of stand-alone calibration runs and demonstrate results close to those specified in the TPC Technical Design Report.
The Lady with the Sting
(2010)
The Lady with the Sting is sequel to The Lady with a Beard. In the two novels Alobwed'Epie compares and contrasts the masculinity and femininity of the two heroines Emade, and her daughter Ntube. In the first novel, Emade shuns her sex and clinks to a false masculine mask. In spite of her achievements she fails to debunk the old system. In The Lady with the Sting, her daughter Ntube, a less charismatic heroine, allows nature take its course and in the end she seizes the opportunity the erring old system gives her and destroys it. Alobwed'Epie, author of The Death Certificate, The Lady with a Beard, The Day God Blinked, and The Bad Samaritan was born at Ngomboku in Kupe-Muanenguba Division, South-West Region, Cameroon. He studied at the Universities of Yaoundé and Leeds, and teaches Creative Writing at the University of Yaoundé 1, Cameroon.
Exhumed, Tried and Hanged
(2010)
Exhumed, Tried and Hanged elucidates the abuse of folk good faith and ignorance by a conceited, ruthless and grasping leadership that sows carnage among the natives of Etambeng, culminating in unprecedented exodus, untold suffering and death of the people in neighbouring villages. Upon the death of the perpetrator the few returnees are made to listen to the gruesome stories of how the aggrieved children of his victims took revenge on his corpse.
What a Next of Kin!
(2010)
This psycho-anthropological and socio-cultural novel logically and succinctly x-rays the foundations and raison d'être of patriarchy through the implied questions - Is wealth the basis of patriarchy? Have women any role in the system? And how far can a patriarch protect his lineage from alien blood? The extremely wealthy father of eight daughters protagonist Ndi, says yes, to the first question; no, to the second; and in the third questions he says, through dogged pursuance of looking for a male heir by any means; but his lone son whom he unknowingly begot in a remote village in his early life and whom he accidentally stumbled upon and adopted as his heir in his odyssey of looking for a male heir through a series of marriages, says no, to the first question; yes, to the second and to the third question, he says fate is the umpire; and succeeds in convincing his father that he is right.
Here is a collection of sixty-two beautifully crafted poems on some of the deepest of human emotions. They celebrate love, constancy, beauty, marriage, birth and death; in the poems are hailed intellectual labour, leadership and duty. Occasionally, the poet depicts the states of his mind against the backdrop of nature, interfusing description, memory and meditation in a manner essentially romantic. The best in Ambanasom's poetry is matter and manner combined. The striking force of the poems lies in the intriguing relationship between romanticism and romance. Ambanasom's romanticism is concerned with the concept of nature as a universal being or a cosmic entity, nostalgia, the attempt to link his childhood with the present and the future, and the response to nature at different levels of his development. The poet also demonstrates a penchant for rural subject matter, places and people. In the poet of romance there is a more direct expression of basic human emotions, in particular of love that is enchanting, possessing, seductive, and alluring. We find in the poems, love that is reciprocal and imbued with constancy and understanding.