Hasil untuk "History of Germany"

Antonis Antoniou

In the 1960s and 1970s a series of observations and theoretical developments highlighted the presence of several anomalies which could, in principle, be explained by postulating one of the following two working hypotheses: (i) the existence of dark matter, or (ii) the modification of standard gravitational dynamics in low accelerations. In the years that followed, the dark matter hypothesis as an explanation for dark matter phenomenology attracted far more attention compared to the hypothesis of modified gravity, and the latter is largely regarded today as a non-viable alternative. The present article takes an integrated history and philosophy of science approach in order to identify the reasons why the scientific community mainly pursued the dark matter hypothesis in the years that followed, as opposed to modified gravity. A plausible answer is given in terms of three epistemic criteria for the pursuitworthiness of a hypothesis: (a) its problem-solving potential, (b) its compatibility with established theories and the feasibility of incorporation, and (c) its independent testability. A further comparison between the problem of dark matter and the problem of dark energy is also presented, explaining why in the latter case the situation is different, and modified gravity is still considered a viable possibility.

Sander Bot, Gunilla Ståhls, Rune Bygebjerg et al.

The European species of the Cheilosia subgen. Neocheilosia Barkalov, 1983 (Diptera, Syrphidae) are revised. The identities of Cheilosia morio (Zetterstedt, 1838) and of its synonyms are reviewed, and C. scanica Ringdahl, 1937 is established as a junior synonym of C. morio. Cheilosia luteicornis (Zetterstedt, 1838) is re-installed as the name for C. morio of authors pro parte, not Zetterstedt. Cheilosia morio and C. luteicornis are redescribed, and lectotypes are designated for Eristalis lineata Wahlberg, 1843 and for E. luteicornis Zetterstedt, 1838 in order to ensure the consistent future interpretation of the names. The hitherto unknown male of Cheilosia barovskii Stackelberg, 1930 is described, and the female of C. barovskii is redescribed. We also provide updated distributional records and an identification key. Finally, we present a Neighbor-Joining tree for mtDNA COI barcodes of four species of the subgen. Neocheilosia.

G. Aad, E. Aakvaag, B. Abbott et al.

Measurements of jet substructure are key to probing the energy frontier at colliders, and many of them use track-based observables which take advantage of the angular precision of tracking detectors. Theoretical calculations of track-based observables require ‘track functions’, which characterize the transverse momentum fraction rq carried by charged hadrons from a fragmenting quark or gluon. This letter presents a direct measurement of rq distributions in dijet events from the 140 fb−1 of proton–proton collisions at s=13 TeV recorded with the ATLAS detector. The data are corrected for detector effects using machine-learning methods. The scale evolution of the moments of the rq distribution is sensitive to non-linear renormalization group evolution equations of QCD, and is compared with analytic predictions. When incorporated into future theoretical calculations, these results will enable a precision program of theory-data comparison for track-based jet substructure observables.

Joseph R. Burger

Natural selection has produced an extraordinary diversity of life histories spanning many orders of magnitude in body size, vital rates, and biological times. In general, big and cold organisms grow and reproduce slowly and live long lives; small and warm organisms grow and reproduce quickly and live short lives. The Metabolic Theory of Ecology (MTE) predicts equal and opposite scaling exponents of mass-specific biological rates (e.g., respiration, growth, and reproduction) and times (e.g., development, lifespan, and generation) as a function of size. However, empirical support for these predictions varies depending on trait and taxon. Here I: 1) provide background and mixed support for the quarter-power scaling exponents for life history rates and times predicted by MTE, 2) discuss possible explanations, including effects of natural selection on taxonomic and functional groups, and inadequate data for life history traits, 3) briefly summarize the Equal Fitness Paradigm (EFP) as a unifying theory of bioenergetics, life history and demography that does not depend on any particular allometric scalings, and 4) discuss ramifications of the EFP for other biological phenomena, including physiological performance metrics and trophic energetics of ecosystems. I draw mostly from my knowledge of mammals, yet in many cases the mammalian examples can be generalized to other organisms. I end with prospects for further evaluating and extending the EFP.

Horváth, Alíz, Wagner, Cosima, Wrisley, David et al.

The article addresses the multilingual landscape in Digital Humanities, focusing on understanding its practitioners. We adopt the concept of user profiles from UX design to help create visibility and empathy for the unique needs of multilingual scholars. In a DH2023 workshop, using a dataset of six user profiles, participants examined multilingual DH, exploring the complex interaction between language use, identity, inclusivity, and infrastructure. Only by including multilingual perspectives, we argue, can DH promote diverse knowledge systems towards more supportive infrastructures and a more inclusive scholarly community.

L McClenachan, T Rick, RH Thurstan et al.

Historical ecology draws on a broad range of information sources and methods to provide insight into ecological and social change, especially over the past ∼12000 yr. While its results are often relevant to conservation and restoration, insights from its diverse disciplines, environments, and geographies have frequently remained siloed or underrepresented, restricting their full potential. Here, scholars and practitioners working in marine, freshwater, and terrestrial environments on 6 continents and various archipelagoes synthesize knowledge from the fields of history, anthropology, paleontology, and ecology with the goal of describing global research priorities for historical ecology to influence conservation. We used a structured decision-making process to identify and address questions in 4 key priority areas: (1) methods and concepts, (2) knowledge co-production and community engagement, (3) policy and management, and (4) climate change impacts. This work highlights the ways that historical ecology has developed and matured in its use of novel information sources, efforts to move beyond extractive research practices and toward knowledge co-production, and application to management challenges including climate change. We demonstrate the ways that this field has brought together researchers across disciplines, connected academics to practitioners, and engaged communities to create and apply knowledge of the past to address the challenges of our shared future.

Ruizhong Qiu, Dingsu Wang, Lei Ying et al.

Diffusion on graphs is ubiquitous with numerous high-impact applications. In these applications, complete diffusion histories play an essential role in terms of identifying dynamical patterns, reflecting on precaution actions, and forecasting intervention effects. Despite their importance, complete diffusion histories are rarely available and are highly challenging to reconstruct due to ill-posedness, explosive search space, and scarcity of training data. To date, few methods exist for diffusion history reconstruction. They are exclusively based on the maximum likelihood estimation (MLE) formulation and require to know true diffusion parameters. In this paper, we study an even harder problem, namely reconstructing Diffusion history from A single SnapsHot} (DASH), where we seek to reconstruct the history from only the final snapshot without knowing true diffusion parameters. We start with theoretical analyses that reveal a fundamental limitation of the MLE formulation. We prove: (a) estimation error of diffusion parameters is unavoidable due to NP-hardness of diffusion parameter estimation, and (b) the MLE formulation is sensitive to estimation error of diffusion parameters. To overcome the inherent limitation of the MLE formulation, we propose a novel barycenter formulation: finding the barycenter of the posterior distribution of histories, which is provably stable against the estimation error of diffusion parameters. We further develop an effective solver named DIffusion hiTting Times with Optimal proposal (DITTO) by reducing the problem to estimating posterior expected hitting times via the Metropolis--Hastings Markov chain Monte Carlo method (M--H MCMC) and employing an unsupervised graph neural network to learn an optimal proposal to accelerate the convergence of M--H MCMC. We conduct extensive experiments to demonstrate the efficacy of the proposed method.

Hannah Barbon, Jean-Louis Berthoud, Friederike Woog et al.

The nectarivorous common sunbird asity (Neodrepanis coruscans) is phylogenetically closely related to the frugivorous velvet asity (Philepitta castanea), yet it shares similar habitat and foraging behaviour as the Malagasy sunbirds (Cinnyris spp.). As ecological factors have been shown to influence blood parasite prevalence, it should be tested whether parasite abundance, prevalence and diversity of N. coruscans are more similar to the sunbirds than to its relative. Therefore, blood samples (n = 156) and smears (n = 60) were tested for different blood parasites (Haemosporida, trypanosomes, filarioid nematodes) using molecular and microscopic methods. High prevalence of haemosporidian parasites was observed in all bird taxa, with rates ranging from 23% in N. coruscans to 84.6% in C. notatus. The Malagasy Cinnyris spp. exhibited a high occurrence of mixed haemosporidian infections (>76%) with various specialized lineages. Within the Philepittidae family, no Haemoproteus infection was detected and just a few cases of mixed infections. Nectariniidae species predominantly had specialized haemosporidian lineages, while Philepittidae had infections mainly caused by generalist lineages. These findings emphasize the diverse range of blood parasites in Nectariniidae, while additionally highlighting the high diversity of trypanosomes and filarioid nematodes in Philepittidae. Additionally, several newly discovered haemosporidian lineages, Trypanosoma isolates and filarioid nematode isolates were identified. Notably, Philepittidae exhibited a lower prevalence of avian haemosporidian parasites compared to Nectariniidae, possibly due to potential resistance mechanisms. Despite N. coruscans sharing similar habitat and behavioural ecology with both Cinnyris spp., it closely resembles its relative, P. castanea, in all aspects of haemosporidian parasitism.

O. Wings, O. Wings, J. Fischer et al.

<p>The first part of this article gives an overview of influential comics and graphic novels on paleontological themes from the last 12 decades. Through different forms of representation and narration, both clichés and the latest findings from paleontological research are presented in comics in an entertaining way for a broad audience. As a result, comics are often chroniclers of 20th century scientific history and contemporary paleoart.</p> <p>The second part of this article deals with the development of the bilingual graphic novel <i>EUROPASAURUS – Life on Jurassic Islands</i>, which communicates knowledge from universities and museums to the public. This non-verbal comic presents the results of a paleontological research project on a Late Jurassic terrestrial biota from northern Germany in both a scientifically accurate and an easily understandable way, based on the way of life of various organisms and their habitats. Insights into the creative process, the perception of the book by the public, and ideas on how to raise public awareness of such a project are discussed.</p>

Danko Georgiev, Eliahu Cohen

Quantum entanglement is a key resource, which grants quantum systems the ability to accomplish tasks that are classically impossible. Here, we apply Feynman's sum-over-histories formalism to interacting bipartite quantum systems and introduce entanglement measures for bipartite quantum histories. Based on the Schmidt decomposition of the matrix comprised of the Feynman propagator complex coefficients, we prove that bipartite quantum histories are entangled if and only if the Schmidt rank of this matrix is larger than 1. The proposed approach highlights the utility of using a separable basis for constructing the bipartite quantum histories and allows for quantification of their entanglement from the complete set of experimentally measured sequential weak values. We then illustrate the non-classical nature of entangled histories with the use of Hardy's overlapping interferometers and explain why local hidden variable theories are unable to correctly reproduce all observable quantum outcomes. Our theoretical results elucidate how the composite tensor product structure of multipartite quantum systems is naturally extended across time and clarify the difference between quantum histories viewed as projection operators in the history Hilbert space or viewed as chain operators and propagators in the standard Hilbert space.

Alejandro Gonzalez-Hevia, Daniel Gayo-Avello

Knowledge graphs have been adopted in many diverse fields for a variety of purposes. Most of those applications rely on valid and complete data to deliver their results, pressing the need to improve the quality of knowledge graphs. A number of solutions have been proposed to that end, ranging from rule-based approaches to the use of probabilistic methods, but there is an element that has not been considered yet: the edit history of the graph. In the case of collaborative knowledge graphs (e.g., Wikidata), those edits represent the process in which the community reaches some kind of fuzzy and distributed consensus over the information that best represents each entity, and can hold potentially interesting information to be used by knowledge graph refinement methods. In this paper, we explore the use of edit history information from Wikidata to improve the performance of type prediction methods. To do that, we have first built a JSON dataset containing the edit history of every instance from the 100 most important classes in Wikidata. This edit history information is then explored and analyzed, with a focus on its potential applicability in knowledge graph refinement tasks. Finally, we propose and evaluate two new methods to leverage this edit history information in knowledge graph embedding models for type prediction tasks. Our results show an improvement in one of the proposed methods against current approaches, showing the potential of using edit information in knowledge graph refinement tasks and opening new promising research lines within the field.

Sarah Potthoff, Marleen Finke, Matthé Scholten et al.

PurposeSelf-binding directives (SBDs) are a special type of psychiatric advance directive in which mental health service users can consent in advance to involuntary hospital admission and involuntary treatment during future mental health crises. This study presents opportunities and risks of SBDs reported by users with bipolar disorder, family members of people with bipolar disorder, professionals working with people with bipolar disorder and researchers with expertise in mental health ethics and law.MethodsSeventeen semi-structured interviews with users, family members and professionals, and one focus group with five researchers were conducted. The data was analyzed using qualitative content analysis.ResultsSix opportunities and five risks of SBDs were identified. The opportunities were promotion of autonomy and self-efficacy of users, relief of responsibility for family members, early intervention, reduction of (perceived) coercion, positive impact on the therapeutic relationship and enhancement of professionals' confidence in decision-making. The risks were problems in the assessment of mental capacity, inaccurate information or misinterpretation, increase of coercion through misuse, negative impact on the therapeutic relationship due to noncompliance with SBDs, and restricted therapeutic flexibility and less reflection on medical decision-making. Stakeholders tended to think that the opportunities of SBDs outweigh their risks, provided that appropriate control and monitoring mechanisms are in place, support is provided during the drafting process and the respective mental healthcare setting is sufficiently prepared to implement SBDs in practice.ConclusionsThe fact that stakeholders consider SBDs as an opportunity to improve personalized crisis care for people with bipolar disorder indicates that a debate about the legal and clinical implementation of SBDs in Germany and beyond is necessary.

Z. Remin, M. Cyglicki, M. Cyglicki et al.

<p>The Polish Basin is a part of a trans-European sedimentary basin comprising the Central European Basin System and stretching from Denmark through Germany to southeastern Poland, and even further to the south into Ukraine. It experienced uplift during the Late Cretaceous, which consequently resulted in the inversion of its axial part (i.e., the Mid-Polish Trough) and development into the Mid-Polish Anticlinorium. In many existing paleotectonic interpretations, southeast Poland – i.e., the subsurface San Anticlinorium and the present-day Roztocze Hills – was included in the Mid-Polish Trough during the Late Cretaceous, representing its axial, most subsiding part. This paleotectonic model was the basis for facies and bathymetric interpretations that assumed Upper Cretaceous sediments, deposited close to the axial part of the Mid-Polish Trough (e.g., in the Roztocze Hills), constituted the deepest facies. In recent years, several studies have contradicted this notion. A growing body of data suggests that this area (southeast Poland) was already a landmass by the Coniacian and Santonian – and certainly in the Campanian and Maastrichtian – rather than forming the deepest part of the Polish Basin.</p> <p>The shallow marginal marine, cyclic middle Campanian, marly to sandy deposits, recently discovered in the Roztocze Hills, were interpreted to be of deltaic origin. This has led to the adoption of new facies and bathymetric models, which – notably – are in stark opposition to most previous interpretations. Notably, the new interpretation implies the presence of a landmass in the place where, in prior frameworks, the deepest and most subsiding part of the Polish Basin (i.e., Mid-Polish Trough) was located during the Cretaceous.</p> <p>Here, we document this Late Cretaceous depositional system – the Szozdy delta developed in the axial part of the Mid-Polish Trough. These middle Campanian deposits crop out extensively in the Roztocze Hills region, close to the village of Szozdy, and exhibit coarsening-upward tripartite cyclothems. Three facies associations have been distinguished: (1) dark grey calcareous mudstones, (2) a yellow calcareous sandstone, and (3) calcareous gaize lithofacies. The sequence, as a whole, was accumulated via the repeated progradation and abandonment of deltaic complexes on the delta front platform setting, with the primary transport direction originating from the axis of the inverting Mid-Polish Trough (thus from the subsurface San Anticlinorium) toward the northeast. This interpretation is supported by a suite of sedimentological, palynofacies, and heavy mineral data.</p> <p>The development of the Szozdy delta system is framed in the context of the dynamic tectonic processes operating contemporaneously in southeast Poland: that is, tectonic inversion (uplift) on one hand, and the generation of new accommodation space via enhanced subsidence on the other. This discovery sheds new light on our understanding of Late Cretaceous facies distribution, bathymetry, and paleogeography and might potentially suggest a different burial history than assumed so far.</p>

George Sangster, Edward L. Braun, Ulf S. Johansson et al.

Knowledge of the higher-level phylogenetic relationships of birds has grown substantially during the past two decades due to the application of genomic data. However, the nomenclature of higher-level taxa has not become more stable, due to the lack of regulation of taxon names above the level of superfamily by the ICZN, and the usage of rank-based nomenclature, which is not tied to clades in a phylogeny. Lack of regulation and the instability of rank-based nomenclature impede effective communication among systematists. We review support for higher-level avian clades using a set of 10 phylogenomic data sets, and identify clades that are supported by congruency of at least four of these. We provide formal definitions of the names of these clades based on the rules of the recently published PhyloCode. The names of 25 clades are here defined using minimum-crown-clade (n ​= ​23), minimum-clade (n ​= ​1) and maximum-crown-clade (n ​= ​1) definitions. Five new names are introduced here: Dinocrypturi, Pteroclimesites, Musophagotides, Phaethoquornithes and Pelecanes. We also review diagnostic apomorphies of the relevant clades, and identify known synonyms and homonyms. By establishing a formal link between higher-level taxon names and well-supported phylogenetic hypotheses, our phylogenetic definitions will provide a solid basis for the stabilization of avian higher-level nomenclature.

Maureen Burdock

“I love you so much,” are the last words I said to my mother on the telephone on Valentine’s Day, just a few days before she died. Our love was as complicated as it was deep. My mother’s dogmatic fundamentalism left little room for me, her queer only child. I have spent a lifetime unravelling a brutal family history that caused her to cling to religion, to love Jesus above all else, including family. My mother was born in Germany in 1938, violently displaced during partitioning in 1946, then abandoned in an orphanage for several years. Years later, she fled to the United States with me to escape an abusive marriage. My mother’s life and her death have prompted this graphic research. How can one develop a resilient sense of self and belonging despite traumatic origins? Is it possible to inhabit a new place and to make it one’s home without, however inadvertently, causing oppression and grief for those already living there? This piece serves as the Prologue to the graphic novel Queen of Snails: A Graphic Memoir (forthcoming November 2022), where I examine this tangled history in depth.

Johannes Hampp, Michael Düren, Tom Brown

Import and export of fossil energy carriers are cornerstones of energy systems world-wide. If energy systems are to become climate neutral and sustainable, fossil carriers need to be substituted with carbon neutral alternatives or electrified if possible. We investigate synthetic chemical energy carriers, H2, CH4, MeOH, NH3 and Fischer-Tropsch fuels (FTF), produced using electricity from RES as fossil substitutes. [...] We model the sourcing of feedstock chemicals, synthesis and transport along nine different Energy Supply Chains to Germany (DE) and compare import options for seven locations around the world against each other and with domestically sourced alternatives on the basis of their respective cost per unit of H2 and energy delivered. We find that for each type of chemical energy carrier, there is an import option with lower costs compared to domestic production in DE. No single exporting country or energy carrier has a unique cost advantage, since for each energy carrier and country there are cost-competitive alternatives. This allows exporter and infrastructure decisions to be made based on other criteria than energy and cost. The lowest cost means for importing of energy and H2 are by H2 pipeline from Denmark, Spain and Western Asia and Northern Africa starting at 36 EUR/MWhLHV to 42 EUR/MWh-LHV or 1.0 EUR/kg-H2 to 1.3 EUR/kg-H2 (in 2050, assuming 5 % p.a. capital cost). For complex energy carriers derived from H2 like CH4, NH3, MeOH or FTF, imports from Argentina by ship to DE are lower cost than closer exporters in the European Union or Western Asia and Northern Africa. For meeting H2 demand, direct H2 imports are more attractive than indirect routes using CH4, MeOH or NH3 imports and subsequent decomposition to H2 because of high capital investment costs and energetic losses. We make our model and data available under open licenses for adaptation and reuse.

Sascha O. Becker, Lukas Mergele, Ludger Wößmann

Abstract Even on the 30th anniversary of German unity, there is still a lot of talk about East-West differences. Typically, these differences are attributed to different political systems, which have created different impressions. As a result of the division of Germany in 1949 into the GDR and the Federal Republic as well as the reunification in 1990, a lively interest in the social sciences has developed as they offer a unique framework for analysing the effects of communism. Never before has such an unexpected introduction and abolition of a communist regime occured on the territory of a previously and subsequently united country. This paper looks into the history of East-West differences and argues that the division and reunification of Germany are nonetheless not a simple “experiment” from which one can directly deduce the effects of communism. The paper finds that the populations of East and West Germany already differed before the division, that the GDR and FRG were unequally affected by the Second World War, and that selective East-West migration took place during the division. Nevertheless, the remaining East-West differences are not necessarily permanent.

In May 2020, during the lockdown in Germany and Austria due to the coronavirus pandemic, Manuel Zahn arranged to have an email conversation with Christine Kopf and Alejandro Bachmann. Since 2017, both have been a part of the project Intercultural Film Education, which is the central concern of the email exchange. Since the beginning of 2019, Manuel Zahn and his co-researcher Katja Lell have been involved with this project in the form of action research. The project has brought together people and institutions from the German-speaking field of film education, and it aims to foster an intercultural sensibility within that field. The conversation provides information about the history of the project and the project partners, as well as about the forms of work as a learning group. In addition, it discusses the central concepts (intercultural attitude, for example) and objectives of the project. This encompasses and touches upon ideas such as adopting an intercultural attitude as a teacher, the selection of films, the concrete form of seminars, the negotiation of normative concepts and the sustainable structural change of institutions in cultural education.

Andrei Ștefan Ghimiși

The Roma people have been the subject of many wrongdoings and obstacles since their first appearance in the European space. As the largest minority in Europe, the people of Roma origin have managed to influence, more or less, the culture of many countries in the European Union. The analysis will consider multiple educational areas such as history, geography or civic culture where Roma are represented in a different way, depending on their history in that territory. Particular attention will be paid to Germany because it offers a number of extremely well-applied methods and practices while having few people of Roma origin.

Богдан БЕЗПАЛЬКО

The article examines the peculiarities of the formation of the image of the enemy in the textbook of Andrei Shestakov "A Short Course in the History of the USSR." Also, the historiography of the issue is analyzed. It applies to both the Soviet era and the present. Despite the modest attention to this topic by foreign experts, the works that directly affect the issue are highlighted. The main changes in the then system of school education, which led to its unification and formed the requirements for the history lesson in general and the need to develop a textbook in particular, are outlined. The role of Andrei Shestakov, who was one of the first to develop an "ideal" history textbook for the Soviet government, is revealed. His career growth and work with Marxist-Leninist ideology are shown, which in turn helped to achieve this goal. The process of modification of negative connotations concerning those forces against which the Bolsheviks fought is traced. Thus considering the period of ancient history, the author criticized rich people. The negative image deepened when it came to religion in the Middle Ages. Priests and monks, compared to the wealthy, were perceived not as something "foreign" but more negative as something "hostile." Wealthy peasants received a special color, the term "kulaks" was used for them. The closer A. Shestakov approached the twentieth century in his presentation of historical material, the clearer the formation of the image of the enemy, not only internal but also external. Thus, the first was personified by all the forces against which the Bolsheviks fought. To define such "enemies" used the definition - "counter-revolutionary". The second category was represented by the Entente and the Nazis, who came to power primarily in Germany and Italy.