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With reference to the Marx Seminars at the University of São Paulo, this chapter discusses the creation of a specific tradition in the social sciences that marks a crucial moment in the history of postcolonial and decolonial studies. By means of the concept of periphery, I reconstruct how this tradition refuted temporal and stadial dualisms. Moreover, I argue that the development of this new perspective in the social sciences must be understood in terms of its efforts to rethink Marx but also, and more importantly, by the need to rethink Brazil's place in the world. Following this thread, I analyse Roberto Schwarz's work as paradigmatic for a proper understanding of the centrality of the concept of periphery in these discussions.
In recent decades, mass spectrometry has moved more than ever before into the front line of protein-centered research. After being established at the qualitative level, the more challenging question of quantification of proteins and peptides using mass spectrometry has become a focus for further development. In this chapter, we discuss and review actual strategies and problems of the methods for the quantitative analysis of peptides, proteins, and finally proteomes by mass spectrometry. The common themes, the differences, and the potential pitfalls of the main approaches are presented in order to provide a survey of the emerging field of quantitative, mass spectrometry-based proteomics.
This chapter reviews the boron isotopic composition of the ocean floor, including pristine igneous oceanic crust such as mid-ocean ridge basalts and ocean island basalts and their implications for the B isotopic composition of the mantle. The chapter further discusses the B isotopic effects of assimilation of altered crustal materials in mantle-derived magmas. The systematics of seawater alteration on oceanic rocks are discussed, including sediments, igneous crust and serpentinization of ultramafic rocks and the respective marine hydrothermal vent fluids. The chapter concludes with a discussion of the secular evolution of the B isotopic composition of seawater.
This paper analyses, if the Intertemporal Guarantee of Freedom, that was developed by the German Federal Constitutional Court (GFCC), can be used to expand the protection of human rights against the harms of climate change. The case of the Swiss Senior Women shows that there are jurisdictions, where the Intertemporal Guarantee of Freedom could be applied to improve standing and the control standard of states’ climate change action. Within international law bodies with jurisdiction over human rights treaties there are distinctive standards of protection against the harms of climate change. A major deficit within the international human rights protection against climate change lies within the focus on the positive obligations and the corresponding wide margin of appreciation granted to the states. The Intertemporal Guarantee of Freedom could provide a protection expansion in this regard, especially in the case of the European Court of Human Rights. It could also enable and legitimise present human rights concerns focused on the future actions of states following their past inaction. One considerable hurdle that is not addressed by it are procedural hurdles like the Plaumann formula applied by the European Court of Justice. The Intertemporal Guarantee of Freedom cannot solve major problems for climate change litigation like procedural hurdles. Yet, it can provide a new approach for complaints to address unambitious mitigation legislation which will lead to future human rights infringements.
Enabling cybersecurity and protecting personal data are crucial challenges in the development and provision of digital service chains. Data and information are the key ingredients in the creation process of new digital services and products. While legal and technical problems are frequently discussed in academia, ethical issues of digital service chains and the commercialization of data are seldom investigated. Thus, based on outcomes of the Horizon2020 PANELFIT project, this work discusses current ethical issues related to cybersecurity. Utilizing expert workshops and encounters as well as a scientific literature review, ethical issues are mapped on individual steps of digital service chains. Not surprisingly, the results demonstrate that ethical challenges cannot be resolved in a general way, but need to be discussed individually and with respect to the ethical principles that are violated in the specific step of the service chain. Nevertheless, our results support practitioners by providing and discussing a list of ethical challenges to enable legally compliant as well as ethically acceptable solutions in the future.
Previous research on scalar implicature has primarily relied on metalinguistic judgment tasks and found varying rates of such inferences depending on the nature of the task and contextual manipulations. This paper introduces a novel interactive paradigm involving both a production and a comprehension component, thereby fixing a precise conversational context.
The main research question is what is reliably communicated by some in this communicative setting, when the quantifier occurs in unembedded positions as well as embedded positions. Our new paradigm involves an action-based task from which participants’ interpretation of utterances can be inferred. It incorporates a game–theoretic design, including a precise model to predict participants’ behaviour in the experimental context.
Our study shows that embedded and unembedded implicatures are reliably communicated by some. We propose two cognitive principles which describe what can be left unsaid. In our experimental context, a production strategy based on these principles is more efficient (with equal communicative success and shorter utterances) than a strategy based on literal descriptions.
High impact events, political changes and new technologies are reflected in our language and lead to constant evolution of terms, expressions and names. Not knowing about names used in the past for referring to a named entity can severely decrease the performance of many computational linguistic algorithms. We propose NEER, an unsupervised method for named entity evolution recognition independent of external knowledge sources. We find time periods with high likelihood of evolution. By analyzing only these time periods using a sliding window co-occurrence method we capture evolving terms in the same context. We thus avoid comparing terms from widely different periods in time and overcome a severe limitation of existing methods for named entity evolution, as shown by the high recall of 90% on the New York Times corpus. We compare several relatedness measures for filtering to improve precision. Furthermore, using machine learning with minimal supervision improves precision to 94%.
We present a method for detecting word sense changes by utilizing automatically induced word senses. Our method works on the level of individual senses and allows a word to have e.g. one stable sense and then add a novel sense that later experiences change. Senses are grouped based on polysemy to find linguistic concepts and we can find broadening and narrowing as well as novel (polysemous and homonymic) senses. We evaluate on a testset, present recall and estimates of the time between expected and found change.
The dynamics of development of Bronze Age fortified settlements in the territory of present-day Poland reflects a general trend visible in other regions of Europe. The first period when relatively few defensive settlements were built was the first half of the 2nd millennium BC. However, intensification of the discussed phenomenon can only be noticed with the development of the Lusatian culture. The older development stage of fortified settlements in Poland is characterised by a significantly lower number of sources. The sites identified until now form a small group of settlements, clearly connected with two cultural circles. The four settlements which have been discovered in Greater Poland and Silesia so far should be linked with local groups of Únětice culture. In south-eastern Poland, in the Polish part of the Western Carpathians, there are three known sites, which are the result of northern expansion of Otomani-Füzesabony culture settlements, as well as the development of local communities of Mierzanowice culture. The text aims at detailed description of archaeological sources concerning particular features and aspects of functioning of fortified settlements. Moreover the collected information will serve to attempt to locate the discussed settlements in wider contexts regarding the roles which are most frequently assigned to the archaeological sites of this kind.
Panel discussion
(2019)
The LOEWE-project “Prehistoric Conflict Research” is determined in several new ways to interpret the archaeological evidence of Bronze Age fortifications. One way is the comparison with other non-modern cultures of conflict and their use of fortifications. In this paper, the conquest of Aquitaine by the Carolingian rulers of the Franks (760–769 CE) is taken as such an example. By analysing the (near-)contemporary historiographical record, the military role of fortifications in post-Roman warfare is discussed. It turns out that in the historiographers’ view, fortified settlements were focal points of military activity, and that combat occurred around them far more often than in the open field. Nonetheless, warfare in the surroundings of fortifications signified more than only sieges: the historiographical sources show a great variety of events connected to them as part of the war. Furthermore, a semantic inquiry of the material shows a special notion in texts concerning the “capture” of fortified settlements. This could be achieved not only by force, but also with diplomatic means, and the historiographers valued success higher than bravery. Moreover, the amount of violence seems to have been limited, as is indicated by the small number of destroyed fortifications and by the debates ensuing about one particular massacre (Clermont-Ferrand in 761 CE), which obviously was at odds with contemporary ideas about appropriate warfare. These results imply that archaeological research on conflict would benefit greatly from broadening its scope beyond actual battle events, in order to disclose the conflicts of Bronze Age Europe in all their complexity.
The history of the Lombards could well be designated a history of warfare, for in the course of the 206-year existence of their realm in Italy the Lombards constantly carried out warfare of varying intensity, whether in their own defence or to expand their territory. Even the time prior to their invasion of Italy, especially their advances from Pannonia, were already marked by numerous military conflicts. Of particular interest here are the questions with reference to the background and the course of these conflicts, and also to the weaponry that was utilised. In the following contribution the weapons of Lombard warriors – or more specifically – the weapons used by warriors in Lombardian Italy will be examined. This specification is necessary because Lombard warriors experienced many interactions with other powers, for example, with Byzantine forces stationed in Italy (until 751 AD), and with foreign enemies like the Franks and Avars, who however could always turn into cooperative partners for the Lombards. Thus, it can be assumed that ultimately through contacts with enemies as well as with allies, the different types of Lombard weaponry depended upon the respective situation. Aside from use in real battles, weapons of the Lombards also had other functions: They were of symbolic significance in that they could demonstrate power and social differences. Certain types of weapons can be interpreted as signs of rank – which of course applies to the early Middle Ages on the whole. In principal, three groups of source material are at disposal for study: 1) references in written sources, 2) contemporary depictions of Lombard warriors, and 3) archaeological evidence, that is, weapons and pieces of armament found in graves, settlements and also occasional finds – including those without a find context. An overall picture of Lombard weaponry can only be gained when all possible source groups are evaluated.
In this paper I assess two archaeological phenomena for Bronze to Iron Age Britain: the expanding scale of conflict over this period and the practice of what is often called deviant burial, and I consider their possible connection. Such burials may relate to a wider pattern of social violence, given that community setbacks need to be explained away, perhaps requiring scapegoats to take the blame, who met their death as a result of being identified as ‘the enemy within’. Although burials with weaponry occurred in the Early Bronze Age, there is little evidence of conflict and few deviant burials. The Later Bronze Age and the Iron Age, by contrast, provide significant evidence at varying scales of both warfare and deviant burial practices.
In this work we present an overview of the proliferation of walled hilltop sites in southwestern Europe, named castellari in Liguria, castellar in Provence, castelo in Portugal, with the question whether they are real settlements or just fortified enclosures in the Final Bronze Age. In many cases scholars considered only those with a similar context in Iron Ages as real fortifications. But, after a study with the support of psychology and physiology of violence and a careful examination of the structures and their contexts, it is possible to hypothesize their defensive nature also during the Final Bronze Age with less doubt. In this way it is possible to delineate, in a chronologically non-uniform way, in southwest Europe a social phenomenon definable as ‘castling’, and we can link this phenomenon to specific causes. Within this phenomenon, we can consider the use of walls on hilltops as practical-symbolic function concurrently. The case study of the Portuguese Middle Tagus region in Central Portugal and of the Liguria region in northwest Italy, the two extremities of the considered macro-region, are considered.
Sântana-Cetatea Veche. A late bronze age mega-fort in the Lower Mureș Basin in Southwestern Romania
(2019)
Our contribution provides an overview of the archaeological investigations carried out, including those in 2018, at the large fortification of Sântana–Cetatea Veche, north of Arad in Romania. The new research was undertaken within the framework of the LOEWE project “Prehistoric Conflict Research – Bronze Age Hillforts between Taunus and Carpathian Mountains”. In accordance with the main scientific guidelines of the project, the research efforts encompassed archaeological fieldwork, magnetometric surveys of the entire area of the fortification, as well as a LiDAR scan covering an area of nearly 850 ha. As a result of the excavation undertaken in the eastern part of the defences pertaining to enclosure III, new absolute chronological data were obtained, which in corroboration with the older information offer a clear dating of the fortification system to the 15th to 13th centuries BC.
The eastern part of the state of Hesse in Germany between the Vogelsberg and Rhön mountains was one area included in the field investigations of the LOEWE project on “Prehistoric conflict Research – Bronze Age Hillforts between Taunus and Carpathian Mountains”. There are several mountains in the county of Fulda with remains of protohistoric fortifications, which still need to be dated and further investigated. Our surveys and excavations took place successively at Stallberg, Kleinberg, Haimberg and Sängersberg. The results are briefly presented in this paper and will form part of more detailed forthcoming publications. At Stallberg and Kleinberg, no archaeological features had been destroyed by erosion, so sufficient material was found to date these sites. At Stallberg, two main periods of use have been documented by radiocarbon dates and corresponding artefacts: the Late Neolithic Michelsberg Culture and the Late Middle-Ages. At Kleinberg, radiocarbon datings indicate an occupation at the end of the Bronze Age and during the first Iron Age, whereas most of the ceramic sherds are typical for the second Iron Age and medieval times. Unfortunately, the fortification at the Haimberg is destroyed, and further excavation is not possible. Finally, at Sängersberg, the various field investigations brought forth evidence of conflicts during the Bronze Age.
During the advanced Early Bronze Age two innovative weapons – the sword and the bronze lancehead – became widespread or were regionally produced in vast parts of Europe. The rapid dispersion of these new weapons implies the corresponding necessity for defence measures and the supply of raw materials, as well as the presence of metalworkers, who possessed technical know-how. The ability to handle a sword or a lance required in turn specific training, which was not limited to only a few persons. The appearance of these weapons occurred around the same time as the construction of fortified settlements in elevated locations in Central Europe.
Shattered maceheads at early bronze age Tel Bet Yerah: symbolic power and destruction, but whose?
(2019)
An unusually large number of stone macehead fragments were found in a large open court in the Early Bronze Age site of Tel Bet Yerah, Israel. Maces, which first appear in the Levant in the seventh millennium BCE, are considered the earliest dedicated combat weapons in western Asia; in later periods they take on a symbolic role. We discuss the sequence of events leading to the accumulation of maceheads at Bet Yerah, the people who may have been implicated in it and its possible political significance.
Research on Bronze Age weapons from wet contexts in northern Europe often interprets those finds as structured deposits of a symbolic nature, placed in liminal environments that had special significance in social and religious terms. Much less consideration is given to direct or indirect connections with war and conflict in the competitive chiefdom polities of the Bronze Age. As territorial boundaries, rivers were obvious settings for conflict, with confrontations at fording points leading to weapon loss in battle. There may also have been intentional deposition connected to the death of a warrior at or near that location. River deposition may also signify the celebration of a military victory, involving a ritualized destruction of the weapons of the vanquished. They may also represent an assertion of territory or an expression of ritualized violence. Such scenarios illustrate how the use of weapons as funerary or votive offerings does not preclude a close association with warfare. The parallel phenomenon of hoarding in the same period may reflect a political climate in which it was necessary to hide valuables. This paper explores possible connections between the deposition of weapons and valuables in wet contexts and the landscape context of war in Ireland during the later Bronze Age, with implications for research in other parts of Europe.
In the archaeology of Scandinavian Bronze Age rock art, there is a long-standing debate over the function and role of the engraved weapons and warriors. The question can be boiled down to: Are the depicted warriors actual fighters, or are they showmen merely portraying an identity to gain status and power? One of the proposals was that spears are active because they occur in killing scenes and swords are passive because they are mostly depicted sheathed. Discussing recent rock art research on the transformation of petroglyphs, their narrative structure as well as new discoveries of weapon depictions, and confronting this with results from use wear analyses on similar weaponry, this paper sets out to argue that the answers to this problem may not be as straight forward as previously proposed. Instead it is proposed that while there is a concern with showmanship relating to a warrior identity in Scandinavian rock art, it is based on real combat, fighting, and killing. Rock art was used to enhance the stature of warriors and to make narratives more exciting that involve warriors.
Foreword
(2019)
Conflicts are shaping our life and influencing most of our behaviour. In the recent years, conflict archaeology has developed into a growing sub-discipline. This article tries to go beyond the traditional concepts of conflict archaeology that mainly addressing violence. We advocate widening the view on conflicts by including different levels of conflict escalation as well as of conflict de-escalation. Archaeological indicators for all of these facets of conflicts are discussed. Here, we concentrate on fortifications which are sensitive indicators of historical, social, economic and cultural processes and hence are able to indicate different facets of conflicts and not only violence. In this context, we also consider territoriality as relevant, because it is a kind of regulation, preventing conflicts from further escalation. The article presents a simple scheme of conflict archaeology which extends the traditional approach and provides deeper insights in human behaviour and its rational.
In this contribution the sub-project of the LOEWE initiative which is researching Late Bronze Age hilltop sites between the mountain ranges of the Vogelsberg and Taunus is presented. Special emphasis is placed on the first results from an evaluation of the data from archives and remote sensing as well as from geophysical examinations of particular sites.
This article pinpoints the double being and doing of weapons, warriors and warrior fraternities as quite possibly a characterising trait from the onset of the Corded Ware period well into the mature Bronze Age and beyond. Exquisitely crafted weapons of bronze – many spirited with a life-energy of their own – were used to wage war and sometimes to hack victims into pieces with strong indications that the beautiful warrior with his trained well-groomed body was capable of extreme violence. The companionship of warrior peers in the fraternity was a social construct enabling effective waging of war as well as fulfilling other roles in Bronze Age society, contributing to rituals and social interaction.
This paper considers archaeological evidence for warfare and conflict in Bronze Age Ireland, with specific reference to the destruction of hillforts during the later second millennium BC. These centres were built at a time of growing militarism, reflected in an increased output of bronze weaponry, including the first use of swords. The indications are of a society obsessed with power and status, with competitive tendencies that on occasion led to open warfare. Recent fieldwork has uncovered evidence of conflict at a number of hillforts across Ireland, the significance of which is considered in relation to the political landscape of the Middle and Late Bronze Age.
The article presents an interdisciplinary project that is focussed on an important cultural monument, namely a fortified hilltop settlement in the cadastre of Hradiště near Pilsen. This fortification is attested by five phases, which correspond to the main epochs of the erection of west Bohemian ramparts during the time span from the turn of the early to the Middle Bronze Age until the early medieval period. Geophysical prospection and trial excavations conducted there in 2012 and 2013 revealed important and new information on the stratigraphy and natural environment of the site. The project is particularly directed towards collaboration between archaeology and scientific studies. Geophysical and geochemical aspects of archaeological contexts, archaeobotanical and archaeozoological finds as well as geological composition of the materials from the fortification were analysed. Special attention was given to the problematic of the so-called vitrified walls (Schlackenwälle) associated with this site.
The large earth fortification of Sântana is located in the area of the Lower Mureş Basin, ca. 20 km northeast of the city of Arad. The attribution of this fortification to the late period of the Bronze Age was confirmed through the 1963 archaeological excavations coordinated by M. Rusu, E. Dörner and I. Ordentlich. In the spring of 2009, a gas pipeline disturbed the area of the third precinct in Sântana. Rescue excavations started in the autumn of 2009 and focused on the same area as where the 1963 research had been performed. The results of our excavations in Sântana were published on several occasions, so here we shall just present several data on the fortification and on the context in which the clay sling projectiles were discovered.
Recent investigations at the Teleac hillfort in south-western Transylvania have generated new data on the spatial organisation and history of the settlement. A combination of excavations and geophysical prospection revealed that Teleac was a dense and well organised settlement with a substantial population, and that some sections of the hillfort likely were used for different activities. It is also argued that Teleac likely dominated the open settlements and acted as a hub for transportation and trade throughout the region.
Foreword
(2018)
Foreword
(2019)
The construction of fortified settlements upon mountain summits and mountain spurs signifies a new form of defensive architecture for the Bronze Age in the 2nd millennium BC, which we designate ‘Bronze Age’ hillforts or fortresses. With mighty walls and gates built using various techniques with wood, clay and stone, the fortifi ed hill settlements manifest an eminent need for protection from assault, while at the same time they were obviously centres of power, from which territories and natural resources as well as travel routes could be controlled. Within the focus of the Hesse excellence initiative LOEWE “Prehistoric Conflict Research – Bronze Age Fortifi cations between Taunus and Carpathian Mountains” new approaches are made on the subject “War and Fortresses as Architecture of Power” in 2016–2019. Th ese studies are being carried out by the Goethe University in Frankfurt/Main and the Römisch-Germanische Kommission in Frankfurt/Main. The objective was to observe the development and character of fortifi ed structures in cultural spheres south of the Alps and landscapes north of the Alps in diachronic comparison in order to better understand the genesis and function of fortifications in their cultural milieu.
Attributing the large-scale, but tactically suspect, south Levantine Bronze Age fortification systems a ‘social’ role has become an archaeological commonplace, yet it begs the crucial question of form – if a polity, a social class, or a collective wish to advertise their cohesion, power, or wealth, why choose fortifications, rather than burial monuments, temples or palaces? In other words, what social end was served by conspicuous, inefficient, military consumption? This paper aims to offer a preliminary answer to this question through three interlocking arguments: The first, that societies like that of the Levantine Bronze Age are characterized by the existence of cooperative labor obligations; the second, that this collective labor investment was, in the ancient Levant, primarily dedicated to defense; the third, that tactically imperfect fortifications were nonetheless strategically successful as defensive installations, even while promoting social cohesion and projecting elite power.
In Bronze Age Cyprus, fortifications are only known from the beginning of Late Cypriote I (17th century BC) onwards, after previously only open settlements existed. In the first phase of the construction of these fortifications they had no uniform character, while later in the 13th century BC (Late Cypriote IIC), like in the Levant, they served primarily to secure settlements with a character of economic and administrative centres. Castles as enwalled noble residences are generally unknown in the Bronze Age of Cyprus.
The current paper summarizes the development of Bronze Age Aegean fortifications with a special focus on the Aegean Early and Middle Bronze Age. In order to get a better understanding of Aegean fortifications for each period, their numbers are set into relation with the number of known sites and other features. The impressive multi-phased fortifications of sites such as Troy or Kolonna on the island of Aegina will be used as case studies to explain the development of Early to Middle Bronze Age sites in the central Aegean. The final part of the paper gives a preview on the development of Late Bronze Age (Mycenaean palatial and postpalatial) fortifications.
The paper presents a reconsideration of settlement pattern and defensive systems in south-eastern Italy during the Bronze Age, on the ground of the archaeological data coming from the excavations at Coppa Nevigata. In particular, the transformations of the defensive lines of the settlement are discussed, which were strictly linked to both defensive and offensive strategies and their changes. Moreover, the paper seeks to examine some related problems, such as the possible origin for the model of complex fortification lines in southern Italy, the pattern(s) of fortified settlement in the Eastern Adriatic and matters related to the social organisation of the Bronze Age southern Italian communities that built the fortification lines.
The hillfort settlement of Monkodonja, located in the vicinity of the town Rovinj, is representative of the Bronze Age Castellieri culture in Istria. Twelve years of excavations that lasted one month each year revealed a proto-urban settlement with extensive fortification system, and a tripartite division of its interior that could well reflect the hierarchical social structure of its inhabitants. Remarkably, a change in the fortification concept during the time of the settlement’s existence could also be observed. With regard to bronze objects and ceramic finds the settlement is dated generally between the developed Early Bronze Age and the beginning of the Middle Bronze Age, or in Br A2 and Br B1 periods according to the chronology of Paul Reinecke. Moreover, about 40 radiocarbon dates from the Monkodonja settlement have also been analysed. The foundation of the settlement is dated to around 1800 cal BC. The second extensive building phase, including the rebuilding of the fortification system according to new defensive concepts, is dated approximately to 1600 cal BC, while the destruction of the settlement occurred around 1500 cal BC or in the middle of the 15th century BC at the latest.
Until now 33 hilltop settlements that might represent Bronze Age hillforts have been registered in South Bohemia. However, only four sites have been distinguished and designated with certainty as Bronze Age fortifications through modern archaeological excavations. As for the other sites, the probability is smaller. The main chronological horizons of the preference for hillforts are the turn of the Early to the Middle Bronze Age (Br A2/B1–B1; c. 1800–1500 BC) and the turn of the Late and Final Bronze Age (Ha A2–B1 and Ha B; c. 1050–800 BC). Enclosed areas of rather small dimensions existed throughout the Bronze Age. There are several Bronze Age hillforts, about which we have gained a fairly clear idea about the construction of their fortifications.
Among many prehistoric hillforts of the Western Carpathians the one located at Maszkowice village displays unique traits. The site was excavated in 1960s and 1970s, but it was not until 2015 that the new field project revealed remains of massive stone fortifications. The wall of the Zyndram’s Hill is dated to the Early Bronze Age (18th century BC), being one of the earliest examples of defensive stone architecture in Europe outside Mediterranean. In our paper we shall discuss the development of the defensive system with its geographical and settlement context. Considering the results of fieldwork and other applied methods we can assume, that the enclosed settlement in Maszkowice functioned as an isolated point located in scarcely populated area. Therefore, we need to stress the landscape and geological circumstances which played a significant role in inner layout organization, social perception and the development of settlement and its fortifications. The stone wall was erected already at the beginning of the site’s occupation. The defensive system existed then in its most elaborated form (with at least two gates leading into the village), while later during several dozen years the fortifications slowly but constantly deteriorated. Finally, in conclusion we shall consider the stone wall of Zyndram’s Hill not as a product of local adaptation, but as a result of a prepared execution of a project.
Despite the fact that the fortification in Sântana-Cetatea Veche has been known since the 18th century and various local scholars have taken a direct interest in the site, the first excavations only started much later. The fortification was correctly attributed to the Bronze Age only in the second half of the 20th century. Until then, those interested in the issue of the great fortifications in Banat believed that the ramparts had been constructed during the Avar Period. New research on the fortification in Sântana was initiated in 2008. The northern side of the third fortification system was tested in 2009, and its construction system was documented on that occasion. The fortification system in question consisted of an earthen rampart, a wall made of wood and clay built upon the crest of the rampart, and a defense ditch. At the same time we noted that the erection of the earthen rampart had disturbed a cemetery in use in that area. The present article focuses on the dating of the third system of fortification excavated in 2009 and on the presentation of the contexts from which radiocarbon data have been collected. The results indicate that the cemetery disturbed by the construction of the fortification was used at the end of the 15th century BC and that the fortification was certainly in use during the 14th century BC.
Geophysical prospection and excavations show that the heavily fortified Teleac hillfort was densely occupied with a population reaching the low thousands. In this article it is argued that Teleac was a local political centre that acted as a hub for transportation and trade in a region that is rich in mineral resources. Recent investigations also reveal that Teleac was attacked in the late 10th century in an event that breached and destroyed the formidable northern defensive system. This attack suggests that the level of military threat was quite severe in the eastern Carpathian Basin. The attacking forces must have had significant offensive capabilities in order to tackle Teleac’s defences. It is also a strong indication that not only Teleac, but contemporary fortified settlements in the surrounding region were at least in part erected to resist serious military threats.
The large hillfort of Teleac, commanding the Mureş River valley, the principal East-West connecting axis in the Carpathian Basin, was likely built in the second half of the 11th century BC and occupied until the end of the 10th or the early 9th century BC. The fortification wall was destroyed around 920 BC, according to recent investigations. More than 40 iron objects were discovered in the fortified complex. These iron finds viewed together with numerous other iron finds from other sites signify that Transylvania was an early centre of the implementation of iron and presumably iron production. Thereby, the use of iron for producing weapons probably stood in the foreground. This is indicated by corresponding grave finds in Greece that contain a sword as offering, but also iron swords found in Slovenia and Romania.
Th e article discusses the plant species found during the 2016 archaeological campaign inside the fortification of Teleac. Analysis of the macro remains recovered from archaeological deposits in Teleac helped to reconstruct the plant species cultivated by the Late Bronze Age inhabitants. The predominant cereal species in the samples was Panicum miliaceum (broomcorn/domestic millet) with 51 seeds, followed by Triticum monococcum (einkorn) with 27 seeds and Triticum spelta (spelt wheat) with 14 seeds. Also revealed were Triticum dicoccum (emmer) with 9 seeds and Secale sp. (rye) with 7 seeds. An overview of the entire Bronze Age, our focus shows that during this period the communities were engaged predominantly in agriculture, preserving their habits from the area of their origin. The results of specific analyses show that peasant farming was the mainstay of Bronze Age life.
This paper provides a glimpse into the palaeoecological conditions at the prehistoric settlement Corneşti-Iarcuri in the southwest Romanian Banat, which is known as the largest Bronze Age fortification in Europe. Preservation of pollen is generally poor in the region, where extensive marshlands have been drained and converted into arable lands since the 18th century. Remarkably, some fossil topsoils buried under thick colluvial layers within the fortification proved to contain pollen. Together with the sediments themselves, which serve as direct evidence for anthropogenically infl uenced geomorphodynamics and could partially be put into chronological context by radiocarbon dating, the on-site palynological data offer a unique opportunity to reconstruct the palaeoenvironmental setting at Corneşti. Results reveal that during the Chalcolithic period, a partially cleared open woodland with Tilia, Quercus and Corylus prevailed. Soil erosion began in some central parts of the settlement site, resulting in the accumulation of up to 90 cm of colluvium in the main valley. Until the Early Iron Age, regional tree percentages dropped from around 38 to 22 %, while anthropogenic indicators (Cerealia, Plantago lanceolata, Polygonum aviculare) increased from 11 to 16 %. Meanwhile, between 50 to 170 cm of colluvium were deposited at the investigated floodplain sites.
The large fortifi cation of Corneşti-larcuri is located on the Mureş River in Romania and comprises four rings of defensive ramparts. With the outermost rampart encircling a total area of 17.65 km2, Corneşti-larcuri is thus considered the largest Bronze Age fortification in Europe. New intensive research began in 2007 with the six-year project “Investigations on settlement structures and the chronology of the Late Bronze Age fortification of Corneşti-larcuri in Romanian Banat”, funded by the German Research Foundation (DFG). The project terminated in the autumn of 2017. Now the goal is to evaluate the data collected during the last eleven years and to develop the first syntheses. As part of the new excavations, a total of 109 radiocarbon datings from diff erent contexts (ramparts, ditches, pits, house structures, etc.) were obtained. The subsequent phase model based upon these data essentially refers to the dating of ramparts I and II and to pits associated with house contexts. Thus, it enables a site biography for Corneşti-larcuri to be outlined for the first time and four settlement phases to be distinguished.
Micromorphology is a suitable method to study the contents and stratigraphic relationships of pit fills. Within the ramparts of Corneşti-Iarcuri, fill layers of a pit were sampled. Th e pit fill was macroscopically divided into primary and secondary fill due to striking differences. These differences could be verified and concretized micromorphologically.
In this paper we propose a sociological concept of innovation capable of transcending the limitations faced by the approaches of common theories of action. The concept was formulated by Ulrich Oevermann and is based upon Max Weber’s theory of charismatic authority. We apply this concept to archaeological data, using the example of Neolithic copper metallurgy in central Europe, and discuss the importance of analyzing innovations that failed to materialize even though they might have been "in the air" at the time. The concept sketched here enables the scientific study of such a phenomenon.
With increasing importance of organizational effectivity and efficiency measures like Balanced Scorecard and optimization of employee work behavior to achieve higher organizational efficiency, Human Resource activities concerning leadership development and academic leadership research are growing. Throughout the course of the twentieth century, a multitude of empirical studies show primarily positive relationships between different constructs of leadership models and desirable variables of organizational behavior. It becomes apparent, though, that in academic research the selection of analyzed leadership models and their consequences is very heterogeneous. This Master Thesis has the objective to contribute to Leadership Research by applying a comparative empirical study in the–until today–often neglected study population of in-house and sales personnel within the pharmaceutical industry. For this purpose, an online employee survey with N = 137 participants from a leading pharmaceutical company in Germany was conducted. Based on contemporary leadership theory, a range of Hypotheses regarding consequences of modern leadership models is empirically tested. The results of the study reconfirm Identification with Manager, Trust & Loyalty and Employee Satisfaction as consequences of Authentic as well as Transformational leadership. Work context as in-house vs. sales setting shows moderating effects on some of the leadership-consequences relationships. As the research involves multiple structurally different variables as well as constructs and compares feedback of different study populations, tangible management implications to boost desirable work attitudes and behaviors can be derived and appropriately adapted to match the respective work context. Ramifications for future scientific research are also presented.
The present study concerns the development of a computerized tool targeting housing accessibility issues. A user-centered approach involving professionals from the housing sector and senior citizens from four European countries resulted in a fully functional prototype of a mobile application (app) including an apartment database. The app raises awareness on housing accessibility and has the potential to support decision making and strengthen all citizens regardless of functional capacity to be more active in their endeavors for a satisfying housing solution. Further refinements and additional features are needed to enhance the potential benefits; they include addressing potential challenges facing senior citizens, developing interactive features that allow users to provide input and adapting to different national contexts to make the app applicable for the European market.
"We have always been living in bubbles" The opportunities and risks in the digitalisation of media
(2019)
The digitalisation of communication started as early as the 1980s. With the rise of the internet in the mid-90s the digitalisation process intensified; then it took on another dimension with the spread of social media and smartphones in the mid noughties. These new technologies are providing new possibilities that are unveiling, or rather, strengthening societal trends. What’s more, traditional forms of organisation are also being transformed at breakneck speed. This publication provides an overview of both developments: On the one hand we have societal developments such as the blurring of boundaries between real and digital worlds, constant connectivity, fake news, and social media outrage. On the other, we have the effects on traditional media, the workplace, schools, non-governmental organisations and sports. ...
In what follows, I will present a condensed and non-exclusive list of the five most important problem domains in the development and implementation of Artificial Intelligence (AI), each with practical recommendations.
The first problem domain to be examined is the one which, in my view, is constituted by those issues with the smallest chances of being resolved. It should therefore be approached in a multi-layered process, beginning in the European Union (EU) itself.
"Artificial Intelligence (AI) is the future. [...] Whoever leads in AI will rule the world" (Russia Today, 2018). This was the central message that President Vladimir Putin conveyed to more than one million Russian school students in September 2017. He also promised to ensure that Russian knowledge of AI would benefit the world. However, the competition in this field is already playing itself out globally. Besides Russia, the USA and China are already in the race, with China, for example, having recently published an ambitious AI strategy, namely the "New Generation Artificial Intelligence Development Plan" (Webster et al., 2018). This document predicts China’s world leadership in the AI field as soon as 2030. The EU and several other countries – among them Germany in the autumn of 2018 - have followed suit with their own AI strategies. ...
In IT security today, the usage of AI is already established in multiple domains. SPAM detection is a well-known example where support vector machines try to distinguish wanted from unwanted emails. Author attribution combines natural language forensics and machine learning. Deep learning helps in identifying illicit images and has improved malware detection as well as network intrusion detection. ...
The thought of using Artificial Intelligence (AI) and algorithmic decisionmaking (ADM) processes in our daily lives makes many of us feel insecure. Most consumers see more risks than opportunities, an attitude brought about by the black-box nature of algorithms and AI. When an organisation or public authority makes a decision supported by an algorithm, one can feel that one is at the algorithm’s mercy, finding it incomprehensible. Widespread consumer distrust of AI and ADM processes will make it difficult to improve their societal acceptance and therefore make it challenging to apply them in the business sector and in policy-making. Without trust on the consumer side, there can be no progress.
Artificial Intelligence (AI) will be one of the key technologies driving the future competitiveness of numerous industries. However, the term "AI" is defined in a variety of ways. AI could be understood as an umbrella term for technologies and systems that carry out tasks otherwise only executable with human intelligence. This requires specific skills that fall into the broad categories of "Sense", "Comprehend", "Act" and "Learn". Through machine learning, modern AI systems can be trained to adapt to changes in their environment, self-optimise and hence achieve better results than earlier versions of AI systems that were based on clearly defined, pre-programmed rules. Based on AI methods, rational and autonomous agents can be developed that collect and analyse relevant information from their environments, come to optimal conclusions based on certain performance parameters and eventually perform physical actions (e.g. robotics) or virtual actions (e.g. chat bots). Machine learning algorithms ensure that the information base of the system is continuously updated so that performance of the system is optimised in an iterative process.
Artificial intelligence (AI)1, together with big data, is the driving force behind the ever-accelerating digital revolution. AI has what it takes to call into question our fundamental concepts and processes of political, social, economic etc. order (Macron, 2018; Zuboff, 2018), and the law will not be spared. Therefore, all societal actors (inter alia from politics, the economy, legal practice and academia) must take responsibility for the crucial twin tasks of determining the right, balanced relationship between AI and the law, and even to hybridise them. ...
According to a survey by the Institute for Management and Economic Research (manager seminars, September 2018), 41% or almost half of those respondents over 60, considered it unlikely that they would be affected by Artificial Intelligence (AI) in the workplace. On the other hand, younger respondents more realistically estimated that significant AI-related changes would occur in their workplace within the next five years, not only in production and data analysis, but also in customer service and office practices across the board. ...
Policy research deals with the policy cycle encompassing problem definition, and policy development, implementation, enforcement and evaluation for different policy domains. On the one hand, this research field empirically describes and analyses how the phases of the policy cycle are processed by relevant social actors in interaction with industry, the media and civil society. On the other hand, policy research is concerned with the issue itself, i.e. the reasons for success and failure of policies that have or will run through the process. Here, the research field offers scientific policy advice including exante evaluation and assessments of potential futures, options, developments, and scenarios for policy domains to inform political debates and decisions. It is this latter function AI already has and will further influence policy research. ...
In April 2018 the European Commission announced its holistic approach to Artificial Intelligence (AI) based on the following three pillars: first, to boost financial support and encourage uptake by the public and private sectors in order to reach investments in AI-related research and innovation by at least 20 billion Euros by the end of 2020. The second pillar aims at preparing for socio-economic changes in terms of the upcoming transformation of the labour market. Finally, the European Commission will ensure an appropriate ethical and legal framework by developing AI ethics guidelines and providing guidance on the interpretation of the Product Liability directive. ...
Editorial : economic competence and financial literacy of young adults – status and challenges
(2016)
In modern society, the ability to deal with financial and economic matters is becoming increasingly important. This is true for both professionals – e.g., in the investment and banking sectors – and for individuals responsible for managing their financial and economic affairs in everyday life (Aprea et al., in press). This ability is generally described as economic competence, economic literacy or financial literacy. Despite the importance of these constructs, there is still a lack of clarity regarding the exact definitions, and specifically, which components they cover in detail. Furthermore, the terms economic competence and financial literacy are only loosely coupled. Economic competence is usually considered to be more comprehensive than financial literacy. However, recent research on financial literacy has followed a broader approach as well. ...
The necessity for well-founded teacher education in economics – findings from curriculum analyses
(2016)
Everybody has to make daily decisions requiring a good understanding of political and economic systems to manage and design our life but also to react on changes in these systems. Already in the early stages of adulthood, individuals need to decide on which job to choose, which party to vote for or on what money to spend on. For all these activities economical knowledge is necessary, which usually derives from economic education taught in schools in several subjects. ...
We propose and create a new data model for learning specific environments and learning analytics applications. This is motivated from the experience in the Fiber Bundle Data Model used for large - time and space dependent - data. Our proposed data model integrates file or stream-based data structures from capturing devices more easily. Learning analytics algorithms are added directly to the data, and formulation of queries and analytics is done in Python. It is designed to improve collaboration in the field of learning analytics. We leverage a hierarchical data structure, where varying data is located near the leaves. Abstract data types are identified in four distinct pathways, which allow storing most diverse data sources. We compare different implementations regarding its memory footprint and performance. Our tests indicate that LeAn Bundles can be smaller than a naïve xAPI export. The benchmarks show that the performance is comparable to a MongoDB, while having the benefit of being portable and extensible.
Students of computer science studies enter university education with very different competencies, experience and knowledge. 145 datasets collected of freshmen computer science students by learning management systems in relation to exam outcomes and learning dispositions data (e. g. student dispositions, previous experiences and attitudes measured through self-reported surveys) has been exploited to identify indicators as predictors of academic success and hence make effective interventions to deal with an extremely heterogeneous group of students.
This volume contains the papers presented at the First International Workshop on Rewriting Techniques for Program Transformations and Evaluation (WPTE 2014) which was held on July 13, 2014 in Vienna, Austria during the Vienna Summer of Logic 2014 (VSL 2014) as a workshop of the Sixth Federated Logic Conference (FLoC 2014). WPTE 2014 was affiliated with the 25th International Conference on Rewriting Techniques and Applications joined with the 12th International Conference on Typed Lambda Calculi and Applications (RTA/TLCA 2014).
In recent years, interest in the environmental occurrence and effects of microplastics (MPs) has shifted towards our inland waters, and in this chapter we provide an overview of the issues that may be of concern for freshwater environments. The term ‘contaminant of emerging concern’ does not only apply to chemical pollutants but to MPs as well because it has been detected ubiquitously in freshwater systems. The environmental release of MPs will occur from a wide variety of sources, including emissions from wastewater treatment plants and from the degradation of larger plastic debris items. Due to the chemical makeup of plastic materials, receiving environments are potentially exposed to a mixture of micro- and nano-sized particles, leached additives, and subsequent degradation products, which will become bioavailable for a range of biota. The ingestion of MPs by aquatic organisms has been demonstrated, but the long-term effects of continuous exposures are less well understood. Technological developments and changes in demographics will influence the types of MPs and environmental concentrations in the future, and it will be important to develop approaches to mitigate the input of synthetic polymers to freshwater ecosystems.
The diagnosis that we are living in a world risk society formulated by Ulrich Beck 20 years ago (Beck, Kölner Z Soziol Sozialpsychol 36:119–147, 1996) has lost nothing of its power, especially against the background of the Anthropocene debate. “Global risks” have been identified which are caused by human activities, technology, and modernization processes. Microplastics are a by-product of exactly these modernization processes, being distributed globally by physical processes like ocean currents, and causing effects far from their place of origin. In recent years, the topic has gained great prominence, as microplastics have been discovered nearly everywhere in the environment, raising questions about the impacts on food for human consumption. But are microplastics really a new phenomenon or rather a symptom of an old problem? And exactly what risks are involved? It seems that the phenomenon has accelerated political action—the USA has passed the Microbead-Free Waters Act 2015—and industries have pledged to fade out the use of microbeads in their cosmetic products. At first sight, is it a success for environmentalists and the protection of our planet?
This chapter deals with these questions by adopting a social-ecological perspective, discussing microplastics as a global risk. Taking four main characteristics of global risks, we develop four arguments to discuss (a) the everyday production of risk by societies, (b) scientific risk evaluation of microplastics, (c) social responses, and (d) problems of risk management. To illustrate these four issues, we draw on different aspects of the current scientific and public debate. In doing so, we contribute to a comprehensive understanding of the social-ecological implications of microplastics.
The ubiquitous detection of microplastics in aquatic ecosystems promotes the concern for adverse impacts on freshwater ecosystems. The wide variety of material types, sizes, shapes, and physicochemical properties renders interactions with biota via multiple pathways probable.
So far, our knowledge about the uptake and biological effects of microplastics comes from laboratory studies, applying simplified exposure regimes (e.g., one polymer and size, spherical shape, high concentrations) often with limited environmental relevance. However, the available data illustrates species- and material-related interactions and highlights that microplastics represent a multifaceted stressor. Particle-related toxicities will be driven by polymer type, size, and shape. Chemical toxicity is driven by the adsorption-desorption kinetics of additives and pollutants. In addition, microbial colonization, the formation of hetero-aggregates, and the evolutionary adaptations of the biological receptor further increase the complexity of microplastics as stressors. Therefore, the aim of this chapter is to synthesize and critically revisit these aspects based on the state of the science in freshwater research. Where unavailable we supplement this with data on marine biota. This provides an insight into the direction of future research.
In this regard, the challenge is to understand the complex interactions of biota and plastic materials and to identify the toxicologically most relevant characteristics of the plethora of microplastics. Importantly, as the direct biological impacts of natural particles may be similar, future research needs to benchmark synthetic against natural materials. Finally, given the scale of the research question, we need a multidisciplinary approach to understand the role of microplastics in a multiple-particle world.
The paper investigates the interpretation of the Romanian subjunctive B (subjB) mood when it is embedded under the propositional attitude verb crede (believe). SubjB is analyzed as a single package of three distinct presuppositions: temporal de se, dissociation and propositional de se. I show that subjB is the temporal analogue of null PRO in the individual domain: it allows only for a de se reading. Dissociation enables us to show that subjB always takes scope over a negation embedded in a belief report. Propositional de se derives this empirical generalization. The introduction of centered propositions (generalizing centered worlds), together with propositional de se, dissociation and the belief 'introspection' principles, derives the fact that subjB belief reports (unlike their indicative counterparts) are infelicitous with embedded probabil.
High grade gliomas, including anaplastic glioma WHO grade III and glioblastoma WHO IV (GBM), carry a dismal prognosis. Taking all nowadays-available therapeutics options, including radiation, chemotherapy and surgery, for GBM into consideration the prognosis after initial diagnosis is about 12 month. Despite this bad prognosis, researchers gained a tremendous insight into the molecular and genetic signatures of low and high grade gliomas. Several different subtypes of GBM were demonstrated with respect to their genetic background. These genetic alterations include p53 mutation in secondary GBMs and EGFR amplification in primary GBMs, respectively. Very recently, great excitement was raised after the discovery of IDH1 mutation in low-grade gliomas and secondary GBMs. This discovery is of great significance since it allows further categorizing of GBMs and is helpful in distinguishing low-grade gliomas from non-neoplastic adjacent brain tissue. Despite all this progress there is an urgent need for fresh additional therapeutic strategies. In addition to the identification of novel therapeutic regimens it is of utmost importance to gain an understanding about the molecular mechanisms on how GBMs manage to evade from almost any anti-cancer treatment regimen. In experimental models of glioblastoma there are a number of novel therapeutic regimens that exhibited promising results. These novel therapeutics include, but are not limited to: Apoptosis-based therapeutics (Tumor necrosis factor alpha related apoptosis inducing ligand, TRAIL), tyrosinkinase-inhibitors, Heat-shock-protein 90 (HSP90) inhibitors, polyphenols, novel drug combinations and intracranial application based strategies. This chapter will primarily review and focus on molecular mechanisms of resistance in GBM and rising new therapeutic venues for high-grade gliomas. High-grade gliomas are a group of primary heterogenous tumors of which glioblastoma World Health Organisation, WHO IV (GBM), is the most common one. Once the diagnosis of GBM is made, the average survival time is approximately 12-15 month (Hegi, Diserens et al., 2005). Treatment usually consists of temozolomide (commonly used chemotherapeutic drug for the treatment of GBM, TMZ), radiation (either alone or in combination with chemotherapeutics) and surgery (Hegi, Diserens et al., 2005)...
Application of the liposuction techniques and principles in specific body areas and pathologies
(2011)
The buttocks have been a symbol of attraction, sexuality and eroticism since ancient times and therefore, they have an important role in defining the posterior body contour. More and more people are talking about and understand the meaning and the role that buttocks play in modeling and physical beauty. The three dimensional gluteoplasty (3-DGP) is an innovative technique that allows us to change volume, shape and firmness, not only in the buttocks but also in the adjacent regions such as the thighs and trochanters, becoming an ideal tool to answer the frequent reasons of consultation of our patients about this particular area of the body: ...
Modelling protein structure seems a challenging enterprise because the number of structure parameters required ordinarily exceeds the amount of independent data points available from experimental observations. Expressing the predominant conformation of a protein in terms of a geometry model, a polypeptide chain consisting of N atoms would command 3N – 6 Cartesian coordinates be fixed. Even for small proteins, this becomes a daunting number. Fortunately, so-called holonomic constraints limit the number of variables, leaving substantially fewer, truly relevant parameters for folding the polypeptide chain into its native tertiary structure. For example, adjusting bond lengths and the many angles between the covalent bonds connecting the atoms is of little concern and appropriate standard values can be inserted from tableworks (Pople & Gordon, 1967; Engh & Huber, 1991, 2006). Table 1 exemplifies for the 147-residue protein Desulfovibrio vulgaris flavodoxin how the number of truly independent internal rotational degrees of freedom amounts to less than one-tenth of the Cartesian coordinate set size...
Quantum theory is the most successful physical theory ever. About one third of the gross national product in the developed countries results from its applications. These applications range from nuclear power to most of the high-tech tools for computing, laser, solar cells and so on. No limit for its range of validity has been found up to now...
There are many tools available that are used to evaluate a radiotherapy treatment plan, such as isodose distribution charts, dose volume histograms (DVH), maximum, minimum and mean doses of the dose distributions as well as DVH point dose constraints. All the already mentioned evaluation tools are dosimetric only without taking into account the radiobiological characteristics of tumors or OARs. It has been demonstrated that although competing treatment plans might have similar mean, maximum or minimum doses they may have significantly different clinical outcomes (Mavroidis et al. 2001). For performing a more complete treatment plan evaluation and comparison the complication-free tumor control probability (P+) and the biologically effective uniform dose (D ) have been proposed (Källman et al. 1992a, Mavroidis et al. 2000). The D concept denotes that any two dose distributions within a target or OAR are equivalent if they produce the same probability for tumor control or normal tissue complication, respectively (Mavroidis et al. 2001)...
1. Introduction: The autosomal dominant cerebellar ataxias (ADCA) are a clinically, pathologically and genetically heterogeneous group of neurodegenerative disorders caused by degeneration of cerebellum and its afferent and efferent connections. The degenerative process may additionally involves the ponto- medullar systems, pyramidal tracts, basal ganglia, cerebral cortex, peripheral nerves (ADCA I) and the retina (ADCA II), or can be limited to the cerebellum (ADCA III) (Harding et al., 1993). The most common of these dominantly inherited autosomal ataxias, ADCA I, includes many Spinocerebellar Ataxias (SCA) subtypes, some of which are caused by pathological CAG trinucleotide repeat expansion in the coding region on the mutated gene. Such is the case for SCA1, SCA2, SCA3/MJD, SCA6, SCA7, SCA17 and Dentatorubral-pallidoluysian atrophy (DRPLA) (Matilla et al., 2006). Among the almost 30 SCAs, the variant SCA2 is the second most prevalent subtype worldwide, only surpassed by SCA3 (Schöls et al., 2004; Matilla et al., 2006; Auburger, 2011)...
Temporal regularity allows predicting the temporal locus of future information thereby potentially facilitating cognitive processing. We applied event-related brain potentials (ERPs) to investigate how temporal regularity impacts pre-attentive and attentive processing of deviance in the auditory modality. Participants listened to sequences of sinusoidal tones differing exclusively in pitch. The inter-stimulus interval (ISI) in these sequences was manipulated to convey either isochronous or random temporal structure. In the pre-attentive session, deviance processing was unaffected by the regularity manipulation as evidenced in three event-related-potentials (ERPs): mismatch negativity (MMN), P3a, and reorienting negativity (RON). In the attentive session, the P3b was smaller for deviant tones embedded in irregular temporal structure, while the N2b component remained unaffected. These findings confirm that temporal regularity can reinforce cognitive mechanisms associated with the attentive processing of deviance. Furthermore, they provide evidence for the dynamic allocation of attention in time and dissociable pre-attentive and attention-dependent temporal processing mechanisms.
An analyst who works in Germany is more likely to publish a high (low) price target regarding a DAX30 stock if other Germany based analysts are also optimistic (pessimistic) about the same stock. This finding is not biased by the fact that DAX30 companies are headquartered in Germany. In times of bull markets, price targets of analysts who regularly exchange their opinion are higher correlated compared to other analysts. This effect vanishes in a bearish market environment. This suggests that communication among analysts indeed plays an important role. However, analysts’ incentives induce them not to deviate too much from the overall average during an economic downturn.
With this paper, I propose a simple asset pricing model that accounts for the influence from social interaction. Investors are assumed to make up their mind about an asset's price based on a forecasting strategy and its past profitability as well as on the contemporaneous expectations of other market participants. Empirically analysing stocks in the DAX30 index, I provide evidence that social interaction rather destabilises financial markets. At least, it does not have a stabilising effect.
In this paper, I analyse the reciprocal social influence on investment decisions within an international group of roughly 2,000 mutual fund managers who invested in companies in the DAX30. Using a robust estimation procedure, I provide empirical evidence that the average fund manager puts 0.69% more portfolio weight on a particular stock, if his peers on average assign a weight to the corresponding position which is 1% higher compared to other stocks in the portfolio. The dynamics of this influence on the choice of portfolio weights suggest that fund managers adjust their behaviour according to the prevailing market situation and are more strongly influenced by others in times of an economic downturn. Analysing the working locations of the fund managers, I conclude that more than 90% of the magnitude of influence stems from the social learning. While this form of influence varies much over time, the magnitude of influence resulting from the exchange of opinion is more or less constant.
Structural biology and life sciences in general, and NMR in particular, have always been associated with advanced computing. The current challenges in the post-genomic era call for virtual research platforms that provide the worldwide research community with both user-friendly tools, platforms for data analysis and exchange, and an underlying e-Infrastructure. WeNMR, a three-year European Commission co-funded project started in November 2010, groups different research teams into a worldwide virtual research community. It builds on the established eNMR e-Infrastructure and its steadily growing virtual organisation, which is currently the second largest VO in the area of life sciences. WeNMR provides an e-Infrastructure platform and Science Gateway for structural biology. It involves researchers from around the world and will build bridges to other areas of structural biology.
This article investigates the phenomenon of increasing integration of customers and users into the organizational creation of value, focusing primarily on the dissolving boundaries between production and consumption. Concepts such as "prosuming", the "working customer", "produsing" and "interactive value creation" have been used to describe this phenomenon. Within the framework of a research project at the Goethe-University Frankfurt/Main, this debate was investigated theoretically as well as empirically in three case studies. The research question is as follows: Why do customers participate in "new types of prosuming" or "interactive value creation" and how are these processes coordinated by the firms? The results show a considerable range of motives and forms of coordination: The customers’ primary motives to voluntarily assume tasks and activities were both intrinsic and extrinsic in nature. The organizational models identified range from strategies of rationalization to prosuming as a basic business model to the collaborative and interactive value creation between the company and the web-community.
Communication in the Web 2.0 context mainly works through images. The online video platform YouTube uses this form of visual communication and makes art forms of Western societies visible through their online videos. YouTube, as cultural reservoir and visual archive of moving images, accommodates the whole range of visualising creative processes – from artistic finger exercises to fine arts. A general characteristic of YouTube is the publishing of small everyday gestures of the ‘big ones’ (politicians, stars), like small incidents and their clumsiness in everyday actions, e.g. Beyonce´s fall from the stage or Tom Cruise’s demonic pro-scientology interview. Through their viral distribution on different platforms, these incidents will never be covered up or disappear from the public view. At the same time big gestures and star images are replicated and sometimes reinterpreted by the ‘small people’ who present themselves in the poses and attitudes of the stars. Generally, a coexistence of different perspectives is possible. YouTube allows polysemic and polyvalent views on the everyday and media phenomena. This article relies on YouTube research 2 that started in 2006 at the New Media Department of the Goethe University of Frankfurt. The results of the research have already presented representative forms and basic patterns, that is to say, categories for the clips appearing here. These kinds of clips, recurring in the observation period, have an impact on the basic representation of art or artistic expression within moving images on this platform. Methodologically the focus leads to the investigation (which has to be adequate to the specifics of the medium, or ‘media adequate’) of new visual structures and forms which can create – consciously or unconsciously – an art form. After focusing on the media structures, it will be discussed whether any and, if so, which ‘authentic’ new forms were developed solely on YouTube and whether these forms are innovative and can be characterised as avant-garde. This article first takes a small step in evaluating how to get from a general communication through means of visuality in web 2.0, an often endless chatty cheesy visual noise 3 – to the special quality of a consciously created aesthetic. From where do innovative aesthetic forms emerge, related to their media structures? 4 Are they the products of ‘media amateurs’ 5 or do we have to find new specifications and descriptions for the producers? The definition of a ‘media amateur’ describes technically interested private individuals who acquire and develop technology before commercial use of the technology is even recognisable. Just as artists are developing their own techniques, according to Dieter Daniels, media amateurs are autodidacts who invent techniques, rather than just acquire knowledge about them (see for example the demo scene, the machinima, brickfilm producers as well as many areas of computer gaming in general 6). The media amateur directly intervenes in the production processes of the medium and does not just simply use the medium. What is fascinating is the media amateur’s process of self education – not the result – and the direct impact on the internal structure and the control of the medium. 7 Media amateurs open a previously culturally unformed space of experience. This only partially applies to most of the YouTube clips in the realms of the visual arts; it is here most important to look at the visual content. This article discusses all these concepts and introduces new descriptions for the different forms of production: the technically oriented media master, the do-it-yourselfer, the tinkerer, the amateur handicraftsman and the inventor. It outlines a basic research project on ‘visual media culture’ (a triangulation of research on media structure and iconography) of the presented online video platform. It is a product of the analysis of clips focusing on the media structure, analyzing the creative handling of images and the deviations and differences of pre-set media formats and stereotypes.
Indonesia is a multicultural and multireligious nation whose heterogeneity is codified in the state doctrine, the Pancasila. Yet the relations between the various social, ethnic, and religious groups have been problematic down to the present day, and national unity has remained fragile. In several respects, Christians have a precarious role in the struggle for shaping the nation. They are a small minority (about 9% of the population) in a country predominantly inhabited by Muslims; in the past they were interconnected in manifold ways with the Dutch colonial government; they exert great influence in economy and the military, and constitute the majority of the population in some parts of the so-called Outer Islands (such as Flores, Sumba, and Timor), which are characterized by an attitude fraught with ambivalence towards the state apparatus perceived as ‘Javanese’ and ‘Muslim’. In the aftermath of the former president Suharto’s resignation and in the course of the ensuing political changes – in particular the independence of East Timor – Christians were repeatedly discredited for allegedly posing a threat to Indonesian unity, and have been involved both as victims and perpetrators in violent regional clashes with Muslims that claimed thousands of lives. Since the beginning of the new millennium the violent conflicts have lessened, yet the pressure exerted on Christians by Islamic fundamentalists still continues undiminished in the Muslim-majority regions. The future of the Christians in Indonesia remains uncertain, and pluralist society is still on trial. For this reason the situation of Christians in Indonesia is an important issue that goes far beyond research on a minority, touching on general issues relating to the formation of the nation-state.