cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Amphiphilic diblock copolymers as functional surfaces for protein chromatography
Creators: name: Moorthy, Raghu K.
name: D'Souza, Serena
name: Sunthar, P.
name: Noronha, Santosh B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Stationary phase plays a crucial role in the operation of a protein chromatography column. Conventional resins composed of acrylic polymers and their derivatives contribute to heterogeneity of the packing of stationary phase inside these columns. Alternative polymer combinations through customized surface functionalization schemes which consist of multiple steps using static coating techniques are well known. In comparison, it is hypothesized that a single-step scheme is sufficient to obtain porous adsorbents as stationary phase for tuning surface morphology and protein immobilization. To overcome the challenge of heterogeneous packing and ease of fabrication at a laboratory scale, a change in the form factor of separation materials has been proposed in the form of functional copolymer surfaces. In the present work, an amphiphilic, block copolymer, poly(methyl methacrylate-co-methacrylic acid) has been chosen and fully characterized for its potential usage in protein chromatography. Hydrophilicity of the acrylic copolymer and abundance of carboxyl groups inherently on the copolymer surface have been successfully demonstrated through contact angle measurements, Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) studies. Morphological studies indicate presence of a microporous region (nearly 1 to 1.5 $μ$m pore size) that could be beneficial as a cation exchange media as part of the stationary phase in protein chromatography.
description: 10 figures, submitted to Journal
title: Köhler, Eva-Christiana (2014). Helwan III – Excavations in Operation 4, Tombs 1 - 50. Stud. Arch. Gesch. Altägyptens 26 (= SAGA). Rahden/Westfalen
Creators: name: Kuhn, Robert
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Köhler, Eva-Christiana (2014). Helwan III – Excavations in Operation 4, Tombs 1 - 50. Stud. Arch. Gesch. Altägyptens 26 (= SAGA). Rahden/Westfalen: Verlag Marie Leidorf GmbH. ISBN 978-3-86757-972-8. 384 Seiten, 151 Abbildungen und 229 Tabellen sowie 88 Tafeln.
Alopecosa albofasciata
Creators: name: Just, Pavel
name: Opatova, Vera
name: Dolejš, Petr
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa albofasciata

description: ALOPECOSA ALBOFASCIATA (BRULLÉ, 1832)
Italy, Laghel, xerotherm slope, 19 October 2013, lgt. P.J., number of copulations = 1
The male began moving his palps (P_CR) after 0.4 min in the arena, and approached the female with B_JS and his front legs slightly spread, lifted and pointed forward, while performing L_P and O_TA. Female catalepsy: C_E. Courtship duration 5.53 min, copulation duration 3.16 min, five palpal insertions (one, five, three, three and one haematodochal expansion). Between insertions, the male performed O_Q and quivered his palps.
description: Published as part of Just, Pavel, Opatova, Vera & Dolejš, Petr, 2018, Does reproductive behaviour reflect phylogenetic relationships? An example from Central European Alopecosa wolf spiders (Araneae: Lycosidae), pp. 1039-1056 in Zoological Journal of the Linnean Society 185 on page 1044
title: Rezension zu: G. Wessel, Das schmutzige Geschäft mit der Antike. Der globale Handel mit illegalen Kulturgütern. Mit einem Vorwort von M. Hilgert und einem Nachwort von F. Fless. Berlin 2015
Creators: name: Zerres, Jutta
Publisher: name: University Library Heidelberg
Year: 2015

description: Rezension zu: Rezension zu: G. Wessel, Das schmutzige Geschäft mit der Antike. Der globale Handel mit illegalen Kulturgütern. Mit einem Vorwort von M. Hilgert und einem Nachwort von F. Fless. Verlag Ch. Links, Berlin 2015. 184 Seiten, keine Abbildungen. ISBN 978-3-86153-841-7.
Right-left asymmetry of the eigenvector method: A simulation study
Creators: name: Csató, László
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Applications (stat.AP)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 90-10, 90B50, 91B08

description: The eigenvalue method, suggested by the developer of the extensively used Analytic Hierarchy Process methodology, exhibits right-left asymmetry: the priorities derived from the right eigenvector do not necessarily coincide with the priorities derived from the reciprocal left eigenvector. This paper offers a comprehensive numerical experiment to compare the two eigenvector-based weighting procedures and their reasonable alternative of the row geometric mean with respect to four measures. The underlying pairwise comparison matrices are constructed randomly with different dimensions and levels of inconsistency. The disagreement between the two eigenvectors turns out to be not always a monotonic function of these important characteristics of the matrix. The ranking contradictions can affect alternatives with relatively distant priorities. The row geometric mean is found to be almost at the midpoint between the right and inverse left eigenvectors, making it a straightforward compromise between them.
description: 20 pages, 6 figures
НАЦИОНАЛЬНЫЕ И ГОСУДАРСТВЕННЫЕ ИНТЕРЕСЫ В СОВЕТСКОЙ ЮРИДИЧЕСКОЙ НАУКЕ
Creators: name: Кузнецов Артемий Анатольевич
Publisher: name: Образование и право
Year: 2023
Subjects: интересы
национальные интересы
государственные интересы
нация
общество
сущность
коммунизм
идеология
конституция
национальная политика.

description: В статье предпринята попытка анализа понятийного определения и сущностного наполнения категорий «национальные интересы» и «государственные интересы» в советской юридической науке. Вопрос общетеоретического освещения проблематики наличия и признания в понятийном аппарате советских научных и политических сообществ концепций национального и государственного интереса остается актуальным направлением исследований. По мнению автора статьи, на сегодняшний день понимание имеющихся ранее в советском социалистическом обществе и государстве предпосылок к формированию концепций национальных и государственных интересов возможно посредством изучения и выделения ключевых характеристик внешней и внутренней политики Советского Союза. Цель: Целью исследования является определение модели понимания советских научных и политических сообществ вопроса о национальном и государственном интересе, а также выделение содержательной части категорий и их сущностных характеристик. Методы: В исследовании использованы такие методы как: анализ, синтез, системный метод, исторический метод, сравнительно-правовой и формально-юридический метод. Результаты: Результатом исследования является определение понимания и содержания национального и государственного интересов в Советском Союзе. Выводы: Автор приходит к выводу, что специальные категории «национальный интерес» и «государственный интерес» в Советском Союзе использовались строго в соответствии с коммунистической идеологией и в той мере, чтобы отразить и реализовать цели и задачи государственно-партийной политики во внешних и внутренних делах Советского Союза. Сущность представленных категорий в полной мере идеологически и политически детерминирована в большей части периода существования Советского государства.
Loss of MAR1 Function is a Marker for Co-Selection of CRISPR-Induced Mutations in Plants
Creators: name: Rinne, Jannis
name: Witte, Claus-Peter
name: Herde, Marco
Publisher: name: Lausanne : Frontiers Media
Year: 2021
Subjects: subject: CRISPR
subject: Arabidopsis
subject: tomato
subject: knockout marker
subject: MAR1
subject: phylogeny
subject: co-selection
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: In this study, we describe the establishment of the knockout marker gene MAR1 for selection of CRISPR/Cas9-edited Arabidopsis seedlings and tomato explants in tissue culture. MAR1 encodes a transporter that is located in mitochondria and chloroplasts and is involved in iron homeostasis. It also opportunistically transports aminoglycoside antibiotics into these organelles and defects of the gene render plants insensitive to those compounds. Here, we show that mutations of MAR1 induced by the CRISPR system confer kanamycin-resistance to Arabidopsis plants and tomato tissues. MAR1 is single-copy in a variety of plant species and the corresponding proteins form a distinct phylogenetic clade allowing easy identification of MAR1 orthologs in different plants. We demonstrate that in multiplexing approaches, where Arabidopsis seedlings were selected via a CRISPR/Cas9-induced kanamycin resistance mediated by MAR1 mutation, a mutation in a second target gene was observed with higher frequency than in a control population only selected for the presence of the transgene. This so called co-selection has not been shown before to occur in plants. The technique can be employed to select for edited plants, which might be particularly useful if editing events are rare.
О ПРОБЛЕМЕ КЛАССИФИКАЦИИ СФЕР ПРИМЕНЕНИЯ ТЕОРЕТИКО-ИГРОВОГО ПОДХОДА В ПРАВЕ
Creators: name: Черевко Роман Владимирович
Publisher: name: Образование и право
Year: 2023
Subjects: теория игр
математические методы
экономический анализ права

description: Теоретико-игровой подход является перспективным методом анализа правоотношений. Однако, в науке не уделено исследованию данной темы должного внимания. Теория игр полезна юриспруденции как метод анализа правоотношений, поскольку теоретико-игровой подход исследует реальные конфликтные ситуации путем построения модели, а затем выявляет закономерности, в которых заключается прогностическая функция. Модели теории игр описывают разнообразные ситуации, в том числе те, которые могут возникать в праве. Однако, на данный момент в научном сообществе нет общего убеждения в том, как теория игр может применяться в праве, и крайне мало исследований посвящено поиску сфер применения теоретико-игрового подхода. В настоящей статье представлена проблема классификации сфер применения теории игр в праве. Отмечено, что в науке нет единого подхода к разрешению указанной проблемы, поскольку существует затруднение с отнесением закономерностей теории игр к разным сферам права. На указанную проблему представлены существующие подходы отечественных и зарубежных исследователей. В свою очередь, автор предлагает исходить из деления сфер применения теоретико-игрового подхода на публичную и частную сферы по основанию интереса, а также статуса участника игры, после чего конкретизировать на отдельные отрасли права.
Orchis traunsteineri Sauter
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: 0. Traunsteineri Sauter l: Avangon bei Muraz (Defago 1939); Dorenaz (Garns 1916). - 2:Westlich Cleusettaz bei Saillon (Kunz 1949).- 3:Unter der Gletscheralp bei Saas-Fee (Tschopp 1945); «Simplon» (Knetsch). - 4: Bei Imfeld im Binntal (Bernoulli 1903; Gsell 1938, von diesem jedoch mit Vorbehalt hierhergestellt). Forma Sauteri Klinge - l: Dorenaz(Garns1915).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Tunable Josephson diode effect on the surface of topological insulators
Creators: name: Lu, Bo
name: Ikegaya, Satoshi
name: Burset, Pablo
name: Tanaka, Yukio
name: Nagaosa, Naoto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Josephson rectification effect, where the resistance is finite in one direction while zero in the other, has been recently realized experimentally. The resulting Josephson diode has many potential applications on superconducting devices, including quantum computers. Here, we theoretically show that a superconductor-normal metal-superconductor Josephson junction diode on the two-dimensional surface of a topological insulator has large tunability. The magnitude and sign of the diode quality factor strongly depend on the external magnetic field, gate voltage, and the length of the junction. Such rich properties stem from the interplay between different current-phase relations for the multiple transverse transport channels, and can be used for designing realistic superconducting diode devices.
description: 7 pages, 5 figures
Gesellschaft und Raum : Das TRUST Verbundprojekt "Forschungsinstitut Gesellschaftlicher Zusammenhalt"
Creators: name: Herrmann, Sylvia
name: Dirksmeier, Peter
name: Danielzyk, Rainer
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2020
Subjects: subject: Räumliche Transformation
subject: Sozialer Wandel
subject: Gesellschaft
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen

description: Was ist der Kitt, der unsere Gesellschaft zusammenhält? Wie hängt der Zusammenhalt von den räumlichen Rahmenbedingungen ab? In welchem Verhältnis stehen räumlicher und sozialer Wandel? Warum fühlen sich Menschen in manchen Regionen „abgehängt“? Warum gelten gewisse Quartiere in Städten als „Brennpunkte“? Und gibt es in manchen Räumen einen stärkeren Zusammenhalt als in anderen?
Rubidium Rydberg linear macrotrimers
Creators: name: Samboy, Nolan
name: Côté, Robin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We investigate the interaction between three rubidium atoms in highly excited ($58p$) Rydberg states lying along a common axis and calculate the potential energy surfaces (PES) between the three atoms. We find that three-body long-range potential wells exist in some of these surfaces, indicating the existence of very extended bound states that we label \textit{macrotrimers}. We calculate the lowest vibrational eigenmodes and the resulting energy levels and show that the corresponding vibrational periods are rapid enough to be detected spectroscopically.
Model updating of wind turbine blade cross sections with invertible neural networks
Creators: name: Noever-Castelos, Pablo
name: Ardizzone, Lynton
name: Balzani, Claudio
Publisher: name: Chichester : Wiley
Year: 2021
Subjects: subject: wind turbine rotor blade
subject: model updating
subject: invertible neural network
subject: machine learning
subject: sensitivity analysis
subject: Bayesian optimization
subject: blade cross section
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Fabricated wind turbine blades have unavoidable deviations from their designs due to imperfections in the manufacturing processes. Model updating is a common approach to enhance model predictions and therefore improve the numerical blade design accuracy compared to the built blade. An updated model can provide a basis for a digital twin of the rotor blade including the manufacturing deviations. Classical optimization algorithms, most often combined with reduced order or surrogate models, represent the state of the art in structural model updating. However, these deterministic methods suffer from high computational costs and a missing probabilistic evaluation. This feasibility study approaches the model updating task by inverting the model through the application of invertible neural networks, which allow for inferring a posterior distribution of the input parameters from given output parameters, without costly optimization or sampling algorithms. In our use case, rotor blade cross sections are updated to match given cross-sectional parameters. To this end, a sensitivity analysis of the input (material properties or layup locations) and output parameters (such as stiffness and mass matrix entries) first selects relevant features in advance to then set up and train the invertible neural network. The trained network predicts with outstanding accuracy most of the selected cross-sectional input parameters for different radial positions; that is, the posterior distribution of these parameters shows a narrow width. At the same time, it identifies some parameters that are hard to recover accurately or contain intrinsic ambiguities. Hence, we demonstrate that invertible neural networks are highly capable for structural model updating.
ОСНОВНЫЕ ХАРАКТЕРИСТИКИ ЛИЧНОСТИ ПРЕСТУПНИКА, СОВЕРШАЮЩЕГО ПРЕСТУПЛЕНИЯ, СВЯЗАННЫЕ С ПРОСТИТУЦИЕЙ
Creators: name: Алиев Вагиф Музафарович
Publisher: name: Образование и право
Year: 2023
Subjects: личность преступника
проституция
преступления
связанные с проституцией

description: В статье рассматриваются вопросы, связанные с основными признаками личности преступника, совершающего вовлечение в занятие проституцией и организацию занятия проституцией, а также другие преступления, связанные с проституцией
Scaling behavior of online human activity
Creators: name: Zhao, Zhi-Dan
name: Cai, Shi-Min
name: Huang, Junming
name: Fu, Yan
name: Zhou, Tao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The rapid development of Internet technology enables human explore the web and record the traces of online activities. From the analysis of these large-scale data sets (i.e. traces), we can get insights about dynamic behavior of human activity. In this letter, the scaling behavior and complexity of human activity in the e-commerce, such as music, book, and movie rating, are comprehensively investigated by using detrended fluctuation analysis technique and multiscale entropy method. Firstly, the interevent time series of rating behaviors of these three type medias show the similar scaling property with exponents ranging from 0.53 to 0.58, which implies that the collective behaviors of rating media follow a process embodying self-similarity and long-range correlation. Meanwhile, by dividing the users into three groups based their activities (i.e., rating per unit time), we find that the scaling exponents of interevent time series in three groups are different. Hence, these results suggest the stronger long-range correlations exist in these collective behaviors. Furthermore, their information complexities vary from three groups. To explain the differences of the collective behaviors restricted to three groups, we study the dynamic behavior of human activity at individual level, and find that the dynamic behaviors of a few users have extremely small scaling exponents associating with long-range anticorrelations. By comparing with the interevent time distributions of four representative users, we can find that the bimodal distributions may bring the extraordinary scaling behaviors. These results of analyzing the online human activity in the e-commerce may not only provide insights to understand its dynamic behaviors but also be applied to acquire the potential economic interest.
Phonon-mediated Hydrodynamic Transport in a Weyl Semimetal
Creators: name: Bernabeu, Joan
name: Cortijo, Alberto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We analyze from a microscopic point of view the feasibility of a hydrodynamic regime in a type-I Weyl semimetal driven by electron-electron interactions mediated by virtual phonons. Considering also the effects of of impurities and the absorption/emission of real phonons, the electric and thermal conductivities are derived. At temperatures $T$ above the Bloch-Grüneisen temperature $T_\textrm{BG}$, virtual phonons behave similarly to real phonons, but the Lorenz ratio is modified by a constant prefactor dependent on the Fermi surface geometry. For temperatures below $T_\textrm{BG}$, processes that do not conserve chirality induce a $T^2$ dependence in the electric resistivity, opening a window where momentum-conserving interactions dominate transport signatures. We quantitatively discuss this hydrodynamic window and put it into context with recent experimental literature on the subject.
description: 11(Main text)+22(appendix) pages. 3 Figs. Supplementary Material already included as pdf in the source file
Video Data Clustering Report
Creators: name: Galeazzi, Alessandro
name: Zollo, Fabiana
name: Miconi, Andrea
Publisher: name: Zenodo
Year: 2023

description: The rationale behind WP3-Hegemony: Platformization of Video is that the history of audiovisual production is a rich and dynamic one that has changed significantly over the past century, in close connection with the evolution of European cultural industries. As a matter of fact, the birth of cinema itself has been a watershield in this history, putting the European hegemony over Western world-system to the test of the US challenge. With this respect, audiovisual is somehow in the middle, between the upstream reign of French and British cultural forms, and the downstream American control of electronic and global mass media – or the simple fact, how Jeremy Tunstall used to put it, that "the media are American" [see Tunstall 1977]. Cinema has been a real battlefield, with France, Germany and Denmark taking the center of the stage until the interwar period, and Hollywood taking over the world right after [Sassoon 2006: 965-971]. For this reason, in this deliverable we will make an aggregate use of data coming from both WP1 and WP3, and respectively related to theatrical movie productions and admissions, in the first case; and to video-on-demand and video sharing platforms, in the second case.
Alopecosa farinosa ITALIAN POPULATION
Creators: name: Just, Pavel
name: Opatova, Vera
name: Dolejš, Petr
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa farinosa

description: ALOPECOSA FARINOSA, ITALIAN POPULATION
Italy, Nago, alpine meadow, 20 October 2013, lgt. P.J., number of copulations = 12
Males typically began to court immediately [four males were latent (0.06–0.30 min)], with intensifying P_CI. Throughout the entire courtship process, B_JS occurred and resulted in B_D and L_ R. The femur, patella and tibia of legs I pointed upwards together with the distal segments. The impact of legs I on the substrate was harder and faster than in the Czech population. Female catalepsy was C_ E. Courtship duration was 0.85–4.23 min (µ = 2.01 min; SE = 0.27 min). The number of insertions was one to 14 (µ = 7.5; SE = 1.2), with each insertion usually accompanied by a single, long haematodochal expansion (maximum 0.4 min). Multiple haematodochal expansion was recorded once (two expansions per insertion in one male). The number of expansions was 7.6 (SE = 1.19), and duration of copulation Q 1 = 3.18 min, Me = 4.05 min and Q 3 = 5.56 min. Between insertions, males performed O_Q and quivered their palps.
description: Published as part of Just, Pavel, Opatova, Vera & Dolejš, Petr, 2018, Does reproductive behaviour reflect phylogenetic relationships? An example from Central European Alopecosa wolf spiders (Araneae: Lycosidae), pp. 1039-1056 in Zoological Journal of the Linnean Society 185 on page 1045
Commissioning of advanced, dual-recycled gravitational-wave detectors : simulations of complex optical systems guided by the phasor picture
Creators: name: Malec, Michaela
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2006
Subjects: subject: Gravitational-wave detector
subject: simulation
subject: phasor picture
subject: sensitivity
subject: error-signal
subject: laser-amplitude noise
subject: etalon
subject: FINESSE
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Schwarzschild generalized black hole horizon and the embedding space
Creators: name: da Silva, J. M. Hoff
name: da Rocha, Roldao
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: By performing a Taylor expansion along the extra dimension of a metric describing a black hole on a brane, we explore the influence of the embedding space on the black hole horizon. In particular, it is shown that the existence of a Kottler correction of the black hole on the brane, in a viable braneworld scenario, might represent the radius of the black string collapsing to zero, for some point(s) on the black string axis of symmetry along the extra dimension. Further scrutiny on such black hole corrections by braneworld effects is elicited, the well-known results in the literature are recovered as limiting cases, and we assert and show that when the radius of the black string transversal section is zero, as one moves away from the brane into the bulk, is indeed a singularity.
description: 7 pages, to appear in European Phys. J. C
Computational simulation of piezo-electrically stimulated bone adaption surrounding activated teeth implants
Creators: name: Shirazibeheshtiha, Seyedalireza
Publisher: name: Hannover : Institut für Baumechanik und Numerische Mechanik
Year: 2016
Subjects: subject: Osseointegration
subject: electromechanical stimulation
subject: micromotion
subject: dental implants
subject: finite element simulation
subject: Finite-Elemente-Methode
subject: Knochenumbau
subject: Zahnimplantate
subject: elektromechanische Stimulation
subject: Knochen-Implantat-Interface
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Modelling nature-based tourism impacts on rural development and conservation in Sikunga Conservancy, Namibia
Creators: name: Gronau, Steven
name: Grote, Ulrike
Publisher: name: London [u.a.] : Taylor & Francis
Year: 2017
Subjects: subject: Nature-based tourism
subject: conservation
subject: community-based natural resource management
subject: nutrition
subject: mathematical programming
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::320 | Politik

description: Community-based natural resource management and nature-based tourism often go hand in hand to drive conservation and economic development in sub-Saharan Africa. However, the complementarity of the two strategies is controversially discussed in the literature. Built on survey data from 200 households conducted in 2012 we analysed the trade-off between conservation and development objectives by means of a mathematical programming model representing the economy of a rural conservancy in Namibia. We found that in the scenario describing unrestricted resource extraction, local communities mainly benefit from fishing and utilising forest products. In comparison, the scenario representing the social optimum, implying sustainably managed fish stocks and appropriate diets for community inhabitants, shows that community households increase agricultural diversification and shift livelihoods towards tourism employment.
Scaling properties of the pairing problem in the strong coupling limit
Creators: name: Barbaro, M. B.
name: Cenni, R.
name: Molinari, A.
name: Quaglia, M. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the excited states of the pairing Hamiltonian providing an expansion for their energy in the strong coupling limit. To assess the role of the pairing interaction we apply the formalism to the case of a heavy atomic nucleus. We show that only a few statistical moments of the level distribution are sufficient to yield an accurate estimate of the energy for not too small values of the coupling $G$ and we give the analytic expressions of the first four terms of the series. Further, we discuss the convergence radius $G_{\rm sing}$ of the expansion showing that it strongly depends upon the details of the level distribution. Furthermore $G_{\rm sing}$ is not related to the critical values of the coupling $G_{\rm crit}$, which characterize the physics of the pairing Hamiltonian, since it can exist even in the absence of these critical points.
description: 28 pages, 5 figures
Radiating Gravitational Collapse with Shearing Motion and Bulk Viscosity Revisited
Creators: name: Pinheiro, G.
name: Chan, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A new model is proposed to a collapsing star consisting of an anisotropic fluid with bulk viscosity, radial heat flow and outgoing radiation. In a previous paper one of us has introduced a function time dependent into the $g_{rr}$, besides the time dependent metric functions $g_{θθ}$ and $g_{ϕϕ}$. The aim of this work is to generalize this previous model by introducing bulk viscosity and compare it to the non-viscous collapse. The behavior of the density, pressure, mass, luminosity and the effective adiabatic index is analyzed. Our work is also compared to the case of a collapsing fluid with bulk viscosity of another previous model, for a star with 6 $M_{\odot}$. The pressure of the star, at the beginning of the collapse, is isotropic but due to the presence of the bulk viscosity the pressure becomes more and more anisotropic. The black hole is never formed because the apparent horizon formation condition is never satisfied, in contrast of the previous model where a black hole is formed. An observer at infinity sees a radial point source radiating exponentially until reaches the time of maximum luminosity and suddenly the star turns off. In contrast of the former model where the luminosity also increases exponentially, reaching a maximum and after it decreases until the formation of the black hole. The effective adiabatic index diminishes due to the bulk viscosity, thus increasing the instability of the system, in both models, in the former paper and in this work.
description: 39 pages and 17 figures. Published in IJMPD
Topological magnons driven by the Dzyaloshinskii-Moriya interaction in the centrosymmetric ferromagnet Mn$_5$Ge$_3$
Creators: name: Dias, M. dos Santos
name: Biniskos, N.
name: Santos, F. J. dos
name: Schmalzl, K.
name: Persson, J.
name: Bourdarot, F.
name: Marzari, N.
name: Blügel, S.
name: Brückel, T.
name: Lounis, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The phase of the quantum-mechanical wave function can encode a topological structure with wide-ranging physical consequences, such as anomalous transport effects and the existence of edge states robust against perturbations. While this has been exhaustively demonstrated for electrons, properties associated with the elementary quasiparticles in magnetic materials are still underexplored. Here, we show theoretically and via inelastic neutron scattering experiments that the bulk ferromagnet Mn$_5$Ge$_3$ hosts gapped topological Dirac magnons. Although inversion symmetry prohibits a net Dzyaloshinskii-Moriya interaction in the unit cell, it is locally allowed and is responsible for the gap opening in the magnon spectrum. This gap is predicted and experimentally verified to close by rotating the magnetization away from the $c$-axis with an applied magnetic field. Hence, Mn$_5$Ge$_3$ realizes a gapped Dirac magnon material in three dimensions. Its tunability by chemical doping or by thin film nanostructuring defines an exciting new platform to explore and design topological magnons. More generally, our experimental route to verify and control the topological character of the magnons is applicable to bulk centrosymmetric hexagonal materials, which calls for systematic investigation.
description: 24 pages, 4 figures. Accepted in Nature Communications
CAT(0) Polygonal Complexes are 2-Median
Creators: name: Bader, Shaked
name: Lazarovich, Nir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Metric Geometry (math.MG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 51Fxx, 20-XX

description: Median spaces are spaces in which for every three points the three intervals between them intersect at a single point. It is well known that rank-1 affine buildings are median spaces, but by a result of Haettel, higher rank buildings are not even coarse median. We define the notion of ``2-median space'', which roughly says that for every four points the minimal discs filling the four geodesic triangles they span intersect in a point or a geodesic segment. We show that CAT(0) Euclidean polygonal complexes, and in particular rank-2 affine buildings, are 2-median. In the appendix, we recover a special case of a result of Stadler of a Fary-Milnor type theorem and show in elementary tools that a minimal disc filling a geodesic triangle is injective.
description: 42 pages, 30 figures; final version - published in Geometriae Dedicata
Herstellung und Analyse einer Maus mit einer gezielten Inaktivierung des TRH-Rezeptor-1-Gens
Creators: name: Rabeler, Roland
Publisher: name: Hannover : Universität
Year: 2002
Subjects: subject: TRH-receptor-1 knockout
subject: tertiary hypothyroidism
subject: cold exposure
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Fermions in Loop Quantum Gravity and Resolution of Doubling Problem
Creators: name: Zhang, Cong
name: Liu, Hongguang
name: Han, Muxin
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The fermion propagator is derived in detail from the model of fermion coupled to loop quantum gravity. As an ingredient of the propagator, the vacuum state is defined as the ground state of some effective fermion Hamiltonian under the background geometry given by a coherent state resembling the classical Minkowski spacetime. Moreover, as a critical feature of loop quantum gravity, the superposition over graphs is employed to define the vacuum state. It turns out that the graph superposition leads to the propagator being the average of the propagators of the lattice field theory over various graphs so that all fermion doubler modes are suppressed in the propagator. This resolves the doubling problem in loop quantum gravity. Our result suggests that the superposition nature of quantum geometry should, on the one hand, resolve the tension between fermion and the fundamental discreteness and, on the other hand, relate to the continuum limit of quantum gravity.
description: 25+9 pages, 2 figures
Concepts for the implementation of physiologic conditions for the cultivation of human mesenchymal stem cells
Creators: name: Egger, Dominik
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Mesenchymal stem cells
subject: 3D
subject: dynamic cultivation
subject: physiologic conditions
subject: hypoxia
subject: Mesenchymale Stammzellen
subject: dynamische Kultivierung
subject: physiologische Bedingungen
subject: Hypoxie
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
An algebraic quantum field theoretic approach to toric code with gapped boundary
Creators: name: Wallick, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Topologically ordered quantum spin systems have become an area of great interest, as they may provide a fault-tolerant means of quantum computation. One of the simplest examples of such a spin system is Kitaev's toric code. Naaijkens made mathematically rigorous the treatment of toric code on an infinite planar lattice (the thermodynamic limit), using an operator algebraic approach via algebraic quantum field theory. We adapt his methods to study the case of toric code with gapped boundary. In particular, we recover the condensation results described in Kitaev and Kong and show that the boundary theory is a module tensor category over the bulk, as expected.
description: 38 pages, 12 figures. An error pointed out by Yoshiko Ogata in what is now section 6 has been corrected. In addition, this paper includes revisions in response to the referee's comments. These revisions include a new section 2 and an additional reference, as well as modifications to most of the sections in the original paper to make it more accessible to a wider audience
Infrastrukturen als soziale Ordnungsdienste : Zur Transformation eines gesellschaftlichen Phänomens
Creators: name: Barlösius, Eva
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2020
Subjects: subject: Technische Infrastruktur
subject: Soziale Infrastruktur
subject: Soziologie
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen

description: Gemeinhin werden staatliche und private Einrichtungen, die für eine ausreichende Daseinsvorsorge und wirtschaftliche Entwicklung sorgen als Infrastrukturen bezeichnet. Häufig unterscheidet man in technische und soziale Infrastrukturen. Seit einigen Jahren wird jedoch der Begriff wesentlich breiter gebraucht und auf diese Weise vieles zur Infrastruktur erklärt. Prof. Eva Barlösius vom Institut für Soziologie untersucht und analysiert, welches gesellschaftliche Phänomen dahintersteckt.
Short note on the convolution of binomial coefficients
Creators: name: Duarte, Rui
name: de Oliveira, António Guedes
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We know [Rui Duarte and António Guedes de Oliveira, New developments of an old identity, manuscript arXiv:1203.5424, submitted.] that, for every non-negative integer numbers $n,i,j$ and for every real number $\ell$, $$ \sum_{i+j=n} \binom{2i-\ell}{i} \binom{2j+\ell}{j} = \sum_{i+j=n}\binom{2i}{i} \binom{2j}{j}, $$ which is well-known to be $4^n$. We extend this result by proving that, indeed, $$ \sum_{i+j=n} \binom{ai+k-\ell}{i} \binom{aj+\ell}{j} = \sum_{i+j=n} \binom{ai+k}{i} \binom{aj}{j} $$ for every integer $a$ and for every real $k$, and present new expressions for this value.
description: 4 pages
title: Администрирование СУБД
Creators: name: ELS IPR BOOKS
Publisher: name: Профобразование
Year: 2022

description: В учебном пособии рассмотрены вопросы администрирования систем управления базами данных. Описаны структуры данных для администрирования MySQL, служебные файлы для настройки СУБД, разобраны вопросы безопасности. Приведены особенности инсталляции, популярные средства администрирования, утилиты мониторинга. Рассмотрены типы таблиц MySQL, способы резервного копирования, изложены основы управления учетными записями, даны команды администрирования баз данных и файлы журналов. Учебное пособие может быть использовано студентами, обучающимися по укрупненной группе специальностей среднего профессионального образования 09.00.00 «Информатика и вычислительная техника», при изучении дисциплины «Разработка и администрирование баз данных».
Alopecosa pulverulenta
Creators: name: Just, Pavel
name: Opatova, Vera
name: Dolejš, Petr
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa pulverulenta

description: ALOPECOSA PULVERULENTA (CLERCK, 1757)
Czech Republic, Starý Brunst, mountain meadow, 9 May 2013, lgt. P.D., Frauenthal, 8 May 2013, coll. P.D., number of copulations = 3
Males began to court with P_CR immediately after being placed in the arena, and one male was latent (1.75 min). Males approached females with L_A, B_JS, B_C, B_D and O_ TA. After courtship (2.36, 4.46 and 2.96 min), females became cataleptic (C_E). The copulations of A. pulverulenta comprised a high number of haematodochal expansions. The first pair copulated for 4.16 min, and six palpal insertions with 21 haematodochal expansions (one to six expansions per insertion) occurred during copulation. Copulation in the second pair lasted 28.33 min and was accompanied by five insertions, each with 19–65 haematodochal expansions, totalling 225 haematodochal expansions. The third pair copulated for 31.70 min, and 28 insertions with 210 haematodochal expansions (one to 20 expansions per insertion) occurred. During copulation, males quivered their opisthosomata (O_Q).
description: Published as part of Just, Pavel, Opatova, Vera & Dolejš, Petr, 2018, Does reproductive behaviour reflect phylogenetic relationships? An example from Central European Alopecosa wolf spiders (Araneae: Lycosidae), pp. 1039-1056 in Zoological Journal of the Linnean Society 185 on page 1047
Controlled crossed Andreev reflection and elastic co-tunneling mediated by Andreev bound states
Creators: name: Bordin, Alberto
name: Wang, Guanzhong
name: Liu, Chun-Xiao
name: Haaf, Sebastiaan L. D. ten
name: Mazur, Grzegorz P.
name: van Loo, Nick
name: Xu, Di
name: van Driel, David
name: Zatelli, Francesco
name: Gazibegovic, Sasa
name: Badawy, Ghada
name: Bakkers, Erik P. A. M.
name: Wimmer, Michael
name: Kouwenhoven, Leo P.
name: Dvir, Tom
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A short superconducting segment can couple attached quantum dots via elastic co-tunneling (ECT) and crossed Andreev reflection (CAR). Such coupled quantum dots can host Majorana bound states provided that the ratio between CAR and ECT can be controlled. Metallic superconductors have so far been shown to mediate such tunneling phenomena, albeit with limited tunability. Here we show that Andreev bound states formed in semiconductor-superconductor heterostructures can mediate CAR and ECT over mesoscopic length scales. Andreev bound states possess both an electron and a hole component, giving rise to an intricate interference phenomenon that allows us to tune the ratio between CAR and ECT deterministically. We further show that the combination of intrinsic spin-orbit coupling in InSb nanowires and an applied magnetic field provides another efficient knob to tune the ratio between ECT and CAR and optimize the amount of coupling between neighboring quantum dots.
Improved genetic resolution for linkage mapping of resistance to potato wart in monoparental dihaploids with potential diagnostic value in tetraploid potato varieties
Creators: name: Bartkiewicz, Annette
name: Chilla, Friederike
name: Terefe-Ayana, Diro
name: Lübeck, Jens
name: Strahwald, Josef
name: Tacke, Eckhard
name: Hofferbert, Hans-Reinhard
name: Flath, Kerstin
name: Linde, Marcus
name: Debener, Thomas
Publisher: name: Heidelberg : Springer Verlag
Year: 2018
Subjects: subject: Genes
subject: Population statistics
subject: Diagnostic value
subject: Genetic complexity
subject: Highest resolutions
subject: Molecular marker
subject: Potato varieties
subject: Resistance factors
subject: Resistance genes
subject: Segregation patterns
subject: Mapping
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Key message: We achieved improved mapping resolution of the major wart resistance locus Xla-TNL containing also Sen1 in a dihaploid population using SNP data and developed additional markers with diagnostic value in tetraploid varieties. Abstract: We analyzed a segregating monoparental dihaploid potato population comprising 215 genotypes derived from a tetraploid variety that is highly resistant to Synchytrium endobioticum pathotypes 18 and 6. The clear bimodal segregation for both pathotypes indicated that a major dominant resistance factor in a simplex allele configuration was present in the tetraploid donor genotype. Compared to that in previous analyses of the same tetraploid donor in conventional crosses with susceptible tetraploid genotypes, a segregation pattern with a reduced genetic complexity of resistance in dihaploids was observed here. Using the 12.8 k SolCAP SNP array, we mapped a resistance locus to the Xla-TNL region containing also Sen1 on potato chromosome 11. The improved mapping resolution provided by the monoparental dihaploids allowed for the localization of the genes responsible for the resistance to both pathotypes in an interval spanning less than 800 kbp on the reference genome. Furthermore, we identified eight molecular markers segregating without recombination to pathotype 18 and pathotype 6 resistance. Also, two developed markers display improved diagnostic properties in an independent panel of tetraploid varieties. Overall, our data provide the highest resolution mapping of wart resistance genes at the Xla-TNL locus thus far.
Arbitrary static, spherically symmetric space-times as solutions of scalar-tensor gravity
Creators: name: Bronnikov, Kirill A.
name: Badalov, Kodir
name: Ibadov, Rustam
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is shown that an arbitrary static, spherically symmetric metric can be presented as an exact solution of a scalar-tensor theory (STT) of gravity with certain nonminimal coupling function $f(ϕ)$ and potential $U(ϕ)$. The scalar field in this representation can change its nature from canonical to phantom on certain coordinate spheres. This representation, however, is valid in general not in the full range of the radial coordinate but only piecewise. Two examples of STT representations are discussed: for the Reissner-Nordström metric and for the Simpson-Visser regularization of the Schwarzschild metric (the so-called black bounce space-time).
description: 8 pages, 1 figure
Ungleich verwundbar : Erkenntnisse aus den Steilhängen des Valle de Aburrá
Creators: name: Werthmann, Christian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2020
Subjects: subject: Verstädterung
subject: Räumliche Transformation
subject: Kolumbien
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen

description: „Wenn Du hier in der Stadt ankommst hast Du nichts. Da bleibt Dir nichts anderes übrig als in die Hänge zu ziehen. Natürlich gibt es da Erdrutsche, aber wir haben keine Möglichkeit woanders zu wohnen.“ Enfren, Tagelöhner in Medellín, Kolumbien