cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ONA-YO'LDOSH KOMPLEKSI ZARARLANISHI NATIJASIDA YUZAGA KELADIGAN HOMILA ICHI GIPOKSIYASI VA UNING HOMILA YURAK-QON TOMIR SISTEMASI RIVOJLANISHIGA TA'SIRI (ADABIYOTLAR TAHLILI)
Creators: name: Eraliyeva, Shohsanam
name: Ganiyeva, Marjona
name: Qo'ldosheva, Durdona
name: Zubtiyev, Sardor
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqola, ona-yo'ldosh kompleksi zararlanishi natijasida yuzaga keladigan homila ichi gipoksiyasining rivojlanish mexanizmlarini va uning homila yurak-qon tomir tizimiga ta’sirini o’rganishga qaratilgan. Maqolada 2020-2025 yillar orasida nashr etilgan ilmiy adabiyotlar tahlil qilingan va gipoksiya, gipoksemiya, stressga qarshi gormonlar va homiladorlikda yurak-qon tomir kasalliklari kabi muhim kalit so'zlar asosida tahlil yasalgan. Homila ichi gipoksiyasining turli bosqichlari (gipoksemiya, gipoksiya, asidemiya) va uning homilaning rivojlanishiga ta’siri ko’rib chiqildi. Maqolada homiladagi qon tomir tizimi va stressga qarshi gormonlar faollashuvi gipoksiyaning boshlanishiga qanday ta’sir ko'rsatishini ko'rsatgan. Homila rivojlanishiga zarar yetkazishi mumkin bo‘lgan omillar, shu jumladan ona-yo'ldosh kompleksi zararlanishi, onadagi yurak-qon tomir kasalliklari va gemolitik kasalliklar ko'rib chiqildi.
Sustainability impacts of governance modes: insights from Swiss energy policy
Creators: name: Lange, Philipp
name: Bornemann, Basil
name: Burger, Paul
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Inorganic Chemistry
subject: Plant Biology

description: Governance is commonly regarded as pivotal for promoting sustainable development. However, there is a lively debate on the merits of different modes of governance in this respect, especially on the relevance of new, non-hierarchical modes. Adding to this debate, this paper explores the sustainability impacts of the range of governance modes from a comparative perspective. It investigates the relation between modes and induced societal changes and elucidates the role of the mode for promoting sustainability. Guided by a theoretical framework for both the conceptualization of governance modes and their sustainability impacts, five governance arrangements in Swiss energy policy are examined, representing different modes (from hierarchically centralized and decentralized governance to public-private and interactive modes to self-governance). The results do not support the claim that new modes are generally superior to traditional hierarchical ones in terms of promoting sustainability. Rather, the potential of new modes can best be realized in combination with hierarchical governance. Other factors such as the embedding context or the attributes of involved actors are also important for the transformative potential of governance. In view of the findings, future sustainability governance research should increasingly focus on the contextual interplay of governance modes and their meta-governing.
V-A Constraint on a Product of R-parity Violating Couplings
Creators: name: Cheung, Kingman
name: Zhang, Ren-Jie
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study in the framework of R-parity violating supersymmetric theories the effect of R-parity violation due to the operator L_i L_j \bar{E_k} on the (V-A) structure of the muon decay. The precisely measured muon decay parameters can constrain a product of R-parity violating couplings: |λ_{232}λ_{131}| < 0.022 at the 90% CL, which is complementary to the previous limits obtained by the e-μuniversality in τdecay.
description: 8 pages, REVTEX, no figures
Allohogna singoriensis
Creators: name: Ponomarev, A. V.
name: Bragina, T. M.
name: Shmatko, V. Yu.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Allohogna
Allohogna singoriensis

description: Allohogna singoriensis (Laxmann, 1770)
Брагина, 2012; Пономарёв, Брагина, 2015.
 МатериаΛ. 1♀, КараменΑы, 28.04.2015.
description: Published as part of Ponomarev, A. V., Bragina, T. M. & Shmatko, V. Yu., 2017, New data on spiders (Aranei) of the Naurzum State Natural Reserve (Kostanay Region, Kazakhstan), pp. 3-10 in Caucasian Entomological Bulletin 13 (1) on page 7, DOI: 10.23885/1814-3326-2017-13-1-3-10, http://zenodo.org/record/8145545
Weak second Bianchi identity for static, spherically symmetric spacetimes with timelike singularities
Creators: name: Burtscher, Annegret
name: Kiessling, Michael K. -H.
name: Tahvildar-Zadeh, A. Shadi
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 83C50 (Primary) 35Q75, 83C22, 70H40, 53B30, 53C80 (Secondary)

description: The (twice-contracted) second Bianchi identity is a differential curvature identity that holds on any smooth manifold with a metric. In the case when such a metric is Lorentzian and solves Einstein's equations with an (in this case inevitably smooth) energy-momentum-stress tensor of a "matter field" as the source of spacetime curvature, this identity implies the physical laws of energy and momentum conservation for the "matter field". The present work inquires into whether such a Bianchi identity can still hold in a weak sense for spacetimes with curvature singularities associated with timelike singularities in the "matter field". Sufficient conditions that establish a distributional version of the twice-contracted second Bianchi identity are found. In our main theorem, a large class of spherically symmetric static Lorentzian metrics with timelike one-dimensional singularities is identified, for which this identity holds. As an important first application we show that the well-known Reissner-Weyl-Nordström spacetime of a point charge does not belong to this class, but that Hoffmann's spacetime of a point charge with negative bare mass in the Born-Infeld electromagnetic vacuum does.
description: 23 pages; added Corollary 2.2, removed Appendix. Final version, to appear in CQG
EFFECTS OF HOT WEATHER CONCRETING OPERATIONS ON STRENGTH OF CONCRETE: A CASE STUDY OF BUILDING CONSTRUCTION PROJECTS IN SEMERA
Creators: name: YOHANNES KIBROM EKUBAY
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019
Subjects: Reinforced Concrete, Hot Weather concreting Operations, Compressive strength of Concrete, Water Cement ratio, Temperature, Concreting Operations, Workmanship

description: Concrete does not provide anticipated strengths in Hot Weather due to excessive loss of water, accelerated drying, plastic shrinkage cracks and notable loss of durability. Despite the drawbacks, the Ethiopian Standard does not explicitly enforce contractors operating in hot weathered areas of the country to adopt “Hot Weather Concreting Operations” recommended by National and International Standards. With the objectives of assessing the effects of Hot Weather & Workmanship on strength of concrete, the research has been conducted by looking for any possible significant difference between Test groups and Control groups of concrete samples using the TTEST-an inferential statistical tool that determines whether there exists significant difference between means of two data sets. 108 concrete specimens were taken from 12 building construction sites at Semera, and compressive strength tests were conducted on these samples on the 7th and 28th days. These strengths were again compared against the compressive strengths of other similar specimens prepared with qualified technicians under controlled environment. The research has finally discovered that the mean compressive strength of concrete samples taken from the selected project sites at Semera have shown significant difference with strength of similar specimens prepared by technicians under controlled environment, demonstrating that new policy frameworks need to be imposed by the Ministry of Housing and Construction enforcing all contractors operating in Semera to adopt internationally recognized concreting operations for all concrete works there.
An open-source high-frequency lock-in amplifier
Creators: name: Stimpson, G. A.
name: Skilbeck, M. S.
name: Patel, R. L.
name: Green, B. L.
name: Morley, G. W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present characterization of a lock-in amplifier based on a field programmable gate array capable of demodulation at up to 50 MHz. The system exhibits 90 nV/sqrt(Hz) of input noise at an optimum demodulation frequency of 500 kHz.The passband has a full-width half-maximum of 2.6 kHz for modulation frequencies above 100 kHz. Our code is opensource and operates on a commercially available platform.
Alopecosa aculeata
Creators: name: Ponomarev, A. V.
name: Bragina, T. M.
name: Shmatko, V. Yu.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa aculeata

description: Alopecosa aculeata (Clerck, 1758)
 МатериаΛ. 1♂, Терсек, ковыΛковая степь, у нор, 17.05.2014.
description: Published as part of Ponomarev, A. V., Bragina, T. M. & Shmatko, V. Yu., 2017, New data on spiders (Aranei) of the Naurzum State Natural Reserve (Kostanay Region, Kazakhstan), pp. 3-10 in Caucasian Entomological Bulletin 13 (1) on page 7, DOI: 10.23885/1814-3326-2017-13-1-3-10, http://zenodo.org/record/8145545
Wave-particle duality of many-body quantum states
Creators: name: Dittel, Christoph
name: Dufour, Gabriel
name: Weihs, Gregor
name: Buchleitner, Andreas
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We formulate a general theory of wave-particle duality for many-body quantum states, which quantifies how wave- and particle-like properties balance each other. Much as in the well-understood single-particle case, which-way information -- here on the level of many-particle paths -- lends particle-character, while interference -- here due to coherent superpositions of many-particle amplitudes -- indicates wave-like properties. We analyze how many-particle which-way information, continuously tunable by the level of distinguishability of fermionic or bosonic, identical and possibly interacting particles, constrains interference contributions to many-particle observables and thus controls the quantum-to-classical transition in many-particle quantum systems. The versatility of our theoretical framework is illustrated for Hong-Ou-Mandel- and Bose-Hubbard-like exemplary settings.
Grand Unification at Intermediate Mass Scales through Extra Dimensions
Creators: name: Dienes, Keith R.
name: Dudas, Emilian
name: Gherghetta, Tony
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One of the drawbacks of conventional grand unification scenarios has been that the unification scale is too high to permit direct exploration. In this paper, we show that the unification scale can be significantly lowered (perhaps even to the TeV scale) through the appearance of extra spacetime dimensions. Such extra dimensions are a natural consequence of string theories with large-radius compactifications. We show that extra spacetime dimensions naturally lead to gauge coupling unification at intermediate mass scales, and moreover may provide a natural mechanism for explaining the fermion mass hierarchy by permitting the fermion masses to evolve with a power-law dependence on the mass scale. We also show that proton-decay constraints may be satisfied in our scenario due to the higher-dimensional cancellation of proton-decay amplitudes to all orders in perturbation theory. Finally, we extend these results by considering theories without supersymmetry; experimental collider signatures; and embeddings into string theory. The latter also enables us to develop several novel methods of explaining the fermion mass hierarchy via $D$-branes. Our results therefore suggest a new approach towards understanding the physics of grand unification as well as the phenomenology of large-radius string compactifications.
description: 65 pages, LaTeX, 20 figures
Supplementary Material from Prenatal sex determination illuminates the unusual adult sex ratio of a group-living lemur
Creators: name: Pethig, Leonie
name: Ozgul, Arpat
name: Heistermann, Michael
name: Fichtel, Claudia
name: Kappeler, Peter Michael
Publisher: name: The Royal Society
Year: 2025
Subjects: classificationCode: 310499
subject: Evolutionary biology not elsewhere classified

description: SIfiles_BL_280125_TC_2.docx
title: ADCO, Sixième cartulaire de Saint-Étienne de Dijon (1662), Cart. 30 (G 133), 441 folios, f. 062
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 062, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 062, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Prenatal sex determination illuminates the unusual adult sex ratio of a group-living lemur
Creators: name: Pethig, Leonie
name: Ozgul, Arpat
name: Heistermann, Michael
name: Fichtel, Claudia
name: Kappeler, Peter Michael
Publisher: name: The Royal Society
Year: 2025
Subjects: classificationCode: 310499
subject: Evolutionary biology not elsewhere classified

description: Supporting Information: Figure S1; SI Method re-validation; Figure S2; SI Demographic additions to the methods section; Table S1â€“S4; SI References
Two-dimensional quantum interference contributions to the magnetoresistance of Nd{2-x}Ce{x}CuO{4-d} single crystals
Creators: name: Harus, G. I.
name: Ignatenkov, A. N.
name: Ponomarev, A. I.
name: Sabirzyanova, L. D.
name: Shelushinina, N. G.
name: Babushkina, N. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The 2D weak localization effects at low temperatures T = (0.2-4.2)K have been investigated in nonsuperconducting sample Nd{1.88}Ce{0.12}CuO{4-d} and in the normal state of the superconducting sample Nd{1.82}Ce{0.18}CuO{4-d} for B>B_c2. The phase coherence time and the effective thickness $d$ of a conducting CuO_2 layer have been estimated by the fitting of 2D weak localization theory expressions to the magnetoresistivity data for the normal to plane and the in-plane magnetic fields.
description: 5 pages, 4 postscript figures
Additional file 2 of Sex differences in the human brain: a roadmap for more careful analysis and interpretation of a biological reality
Creators: name: DeCasien, Alex R.
name: Guma, Elisa
name: Liu, Siyuan
name: Raznahan, Armin
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2: Table S2. Inconsistencies in the spatial patterning of neuroanatomical sex differences. This table includes regions showing significant (Family Wise Error < 0.05, corrected) GMV sex differences with the opposite direction in any two of three contrasts (Fig. 1E). These regions are listed in descending order of cluster size. X, Y and Z coordinates indicate the center-of-mass of each region in the MNI space. Anatomical labels were annotated based on the Automated Anatomical Labeling (AAL) atlas [155]. Regions that are below 20 voxels (that is, 0.0675 cm3) are excluded in this table for simplification. L = left; R = right; partition 1/2 = two separate partitions in one region.
A Measurement and QCD Analysis of the Proton Structure Function $F_2(x,Q^2)$ at HERA
Creators: name: Aid, S.
name: Collaboration, H1
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A new measurement of the proton structure function $F_2(x,Q^2)$ is reported for momentum transfers squared $Q^2$ between 1.5 GeV$^2$ and 5000 GeV$^2$ and for Bjorken $x$ between $3\cdot 10^{-5}$ and 0.32 using data collected by the HERA experiment H1 in 1994. The data represent an increase in statistics by a factor of ten with respect to the analysis of the 1993 data. Substantial extension of the kinematic range towards low $Q^2$ and $x$ has been achieved using dedicated data samples and events with initial state photon radiation. The structure function is found to increase significantly with decreasing $x$, even in the lowest accessible $Q^2$ region. The data are well described by a Next to Leading Order QCD fit and the gluon density is extracted.
description: 35 pages, latex, 12 Figures (3 bitmapped)
Alopecosa cursor
Creators: name: Ponomarev, A. V.
name: Bragina, T. M.
name: Shmatko, V. Yu.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa cursor

description: Alopecosa cursor (Hahn, 1831)
Брагина, 2012.
 МатериаΛ. 7♂, 2♀, корΑон «СаΑ», супесчаная степь, 8.05.2014; 5♂, 1♀, Терсек, ковыΛковая степь, у нор, 3– 17.05.2014; 2♀, КатантаΛ, степь, 11.06.2014; 1♀, корΑон «СаΑ», степь, 27.06.2014; 1♂, КараменΑы, 30.06.2014; 1♂, КараменΑы, 2.05.2015.
description: Published as part of Ponomarev, A. V., Bragina, T. M. & Shmatko, V. Yu., 2017, New data on spiders (Aranei) of the Naurzum State Natural Reserve (Kostanay Region, Kazakhstan), pp. 3-10 in Caucasian Entomological Bulletin 13 (1) on page 7, DOI: 10.23885/1814-3326-2017-13-1-3-10, http://zenodo.org/record/8145545
Lifetime estimations from RHIC Au+Au data
Creators: name: Kasza, Gábor
name: Csörgő, Tamás
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss a recently found family of exact and analytic, finite and accelerating, 1+1 dimensional solutions of perfect fluid relativistic hydrodynamics to describe the pseudorapidity densities and longitudinal HBT-radii and to estimate the lifetime parameter and the initial energy density of the expanding fireball in Au+Au collisions at RHIC with $\sqrt{s_{NN}}=130$ GeV and $200$ GeV colliding energies. From these exact solutions of relativistic hydrodynamics, we derive a simple and powerful formula to describe the pseudorapidity density distributions in high energy proton-proton and heavy ion collisions, and derive the scaling of the longitudinal HBT radius parameter as a function of the pseudorapidity density. We improve upon several oversimplifications in Bjorken's famous initial energy density estimate, and apply our results to estimate the initial energy densities of high energy reactions with data-driven pseudorapidity distributions. When compared to similar estimates at the LHC energies, our results indicate a surprising and non-monotonic dependence of the initial energy density on the energy of heavy ion collisions.
description: 37 pages, substantially extended and accepted version
Supplementary Material from Prenatal sex determination illuminates the unusual adult sex ratio of a group-living lemur
Creators: name: Pethig, Leonie
name: Ozgul, Arpat
name: Heistermann, Michael
name: Fichtel, Claudia
name: Kappeler, Peter Michael
Publisher: name: The Royal Society
Year: 2025
Subjects: classificationCode: 310499
subject: Evolutionary biology not elsewhere classified

description: Sex ratios_revisio220125_trackc_2.docx
Inflation and flat directions in modular invariant superstring effective theories
Creators: name: Gaillard, Mary K.
name: Lyth, David H.
name: Murayama, Hitoshi
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The potential during inflation must be very flat in, at least, the direction of the inflaton. In renormalizable global supersymmetry, flat directions are ubiquitous, but they are not preserved in a generic supergravity theory. It is known that at least some of them are preserved in no-scale supergravity, and simple generalizations of it. We here study a more realistic generalization, based on string-derived supergravity, using the linear supermultiplet formalism for the dilaton. We consider a general class of hybrid inflation models, where a Fayet-Illiopoulos $D$ term drives some fields to large values. The potential is dominated by the $F$ term, but flatness is preserved in some directions. This allows inflation, with the dilaton stabilized in its domain of attraction, and some moduli stabilized at their vacuum values. Another modulus may be the inflaton.
description: 19 pages, REVTEX, further typos, refs fixed
EU-PolarNet 2 White paper with recommendations to accelerate the development of a sustained and fully integrated Polar observing system
Creators: name: Lymer, Gael
name: Badhe, Renuka
name: Elshout, Pjotr
name: Larsen, Jan René
name: Savela, Hannele
name: Scory, Serge
name: Spadetto, Vanessa
name: EU-PolarNet 2
Publisher: name: Zenodo
Year: 2024
Subjects: White paper
observation
Arctic
Antarctic
polar observation
climate change
international collaboration
environmental policies

description: Global climate change is rapidly intensifying, but nowhere are these changes more pronounced than in the polar regions. Yet polar observations remain sparse, with fragmented observing networks lacking large-scale coordination. Increased cooperation in observing the polar regions would create a coordinated system for sustainable and inclusive, standardised data and transnational polar observation, supporting research actions of high societal relevance and well-informed decision-making processes.

This EU-PolarNet 2 White Paper provides more than 80 actionable policy-level recommendations within seven pillars, to strengthen international collaboration in polar observation and facilitate transfer of knowledge between the Arctic and the Antarctic. The recommendations seek to consolidate existing initiatives, integrate infrastructures and funding mechanisms to enhance collective comprehension of polar environmental changes. Collaboration between EU (European Union) Member States and non-EU Arctic and Antarctic countries is recommended to address climate change threats and to encourage unity among nations in polar observation.

The recommendations will benefit people, research, environmental policies and businesses beyond the polar regions. Implementation of the recommendations should start immediately, adjusting step by step the levels of collaboration within each pillar.
Response properties in a model for granular matter
Creators: name: Barrat, Alain
name: Loreto, Vittorio
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate the response properties of granular media in the framework of the so-called {\em Random Tetris Model}. We monitor, for different driving procedures, several quantities: the evolution of the density and of the density profiles, the ageing properties through the two-times correlation functions and the two-times mean-square distance between the potential energies, the response function defined in terms of the difference in the potential energies of two replica driven in two slightly different ways. We focus in particular on the role played by the spatial inhomogeneities (structures) spontaneously emerging during the compaction process, the history of the sample and the driving procedure. It turns out that none of these ingredients can be neglected for the correct interpretation of the experimental or numerical data. We discuss the problem of the optimization of the compaction process and we comment on the validity of our results for the description of granular materials in a thermodynamic framework.
description: 22 pages, 35 eps files (21 figures)
Approximating Pairwise Correlations in the Ising Model
Creators: name: Goldberg, Leslie Ann
name: Jerrum, Mark
Publisher: name: arXiv
Year: 2018
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Computational Complexity (cs.CC)
subject: Probability (math.PR)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In the Ising model, we consider the problem of estimating the covariance of the spins at two specified vertices. In the ferromagnetic case, it is easy to obtain an additive approximation to this covariance by repeatedly sampling from the relevant Gibbs distribution. However, we desire a multiplicative approximation, and it is not clear how to achieve this by sampling, given that the covariance can be exponentially small. Our main contribution is a fully polynomial time randomised approximation scheme (FPRAS) for the covariance. We also show that that the restriction to the ferromagnetic case is essential --- there is no FPRAS for multiplicatively estimating the covariance of an antiferromagnetic Ising model unless RP = #P. In fact, we show that even determining the sign of the covariance is #P-hard in the antiferromagnetic case.
description: To Appear in ACM ToCT
Are All Static Black Hole Solutions Spherically Symmetric?
Creators: name: Ridgway, S. Alexander
name: Weinberg, Erick J.
Publisher: name: arXiv
Year: 1995
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The static black hole solutions to the Einstein-Maxwell equations are all spherically symmetric, as are many of the recently discovered black hole solutions in theories of gravity coupled to other forms of matter. However, counterexamples demonstrating that static black holes need not be spherically symmetric exist in theories, such as the standard electroweak model, with electrically charged massive vector fields. In such theories, a magnetically charged Reissner-Nordstrom solution with sufficiently small horizon radius is unstable against the development of a nonzero vector field outside the horizon. General arguments show that, for generic values of the magnetic charge, this field cannot be spherically symmetric. Explicit construction of the solution shows that it in fact has no rotational symmetry at all.
description: 6 pages, plain TeX. Submitted to GRF Essay Competition
Alopecosa kovblyuki Nadolny et Ponomarev 2012
Creators: name: Ponomarev, A. V.
name: Bragina, T. M.
name: Shmatko, V. Yu.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa kovblyuki

description: Alopecosa kovblyuki Nadolny et Ponomarev in Nadolny, Ponomarev et Dvadnenko, 2012
 МатериаΛ. 1♂, КараменΑы, 2.05.2015.
 Замечания. ВиΑ, новый ΑΛя фауны Казахстана. Известен с востока Украины и юга европейской части России [Nadolny et al., 2012].
description: Published as part of Ponomarev, A. V., Bragina, T. M. & Shmatko, V. Yu., 2017, New data on spiders (Aranei) of the Naurzum State Natural Reserve (Kostanay Region, Kazakhstan), pp. 3-10 in Caucasian Entomological Bulletin 13 (1) on page 7, DOI: 10.23885/1814-3326-2017-13-1-3-10, http://zenodo.org/record/8145545
Additional file 1: of Histone variants H2A.Z and H3.3 coordinately regulate PRC2-dependent H3K27me3 deposition and gene expression regulation in mES cells
Creators: name: Wang, Yan
name: Long, Haizhen
name: Yu, Juan
name: Dong, Liping
name: Wassef, Michel
name: Zhuo, Baowen
name: Li, Xia
name: Zhao, Jicheng
name: Wang, Min
name: Liu, Cuifang
name: Wen, Zengqi
name: Chang, Luyuan
name: Chen, Ping
name: Wang, Qian-fei
name: Xu, Xueqing
name: Margueron, Raphael
name: Li, Guohong
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Developmental Biology
subject: Hematology
subject: Computational Biology

description: Figure S1. H2A.Z is required for the proper genome-wide distribution of H3K27me3 in mES cells. (PDF 2983 kb)
Sharp asymptotic behavior of solutions of the $3d$ Vlasov-Maxwell system with small data
Creators: name: Bigorgne, Léo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the asymptotic properties of the small data solutions of the Vlasov-Maxwell system in dimension three. No neutral hypothesis nor compact support assumptions are made on the data. In particular, the initial decay in the velocity variable is optimal. We use vector field methods to obtain sharp pointwise decay estimates in null directions on the electromagnetic field and its derivatives. For the Vlasov field and its derivatives, we obtain optimal pointwise decay estimates by a vector field method where the commutators are modification of those of the free relativistic transport equation. In order to control high velocities and to deal with non integrable source terms, we make fundamental use of the null structure of the system and of several hierarchies in the commuted equations.
description: Published version
Elastic and Inelastic Photoproduction of \jpsi Mesons at HERA
Creators: name: Aid, S.
name: Collaboration, H1
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Results on \jpsi production in $e p$ interactionsin the H1 experiment at HERA are presented. The \jpsi mesons are produced by almost real photons ($Q^2\approx 0$) and detected via their leptonic decays. The data have been taken in 1994 and correspond to an integrated luminosity of $2.7 {pb}^{-1}$. The $γp$ cross section for elastic \jpsi production is observed to increase strongly with the \cm energy. The cross section for diffractive $J/ψ$ production with proton dissociation is found to be of similar magnitude as the elastic cross section. Distributions of transverse momentum and decay angle are studied and found to be in accord with a diffractive production mechanism. For inelastic \jpsi production the total $γp$ cross section, the distribution of transverse momenta, and the elasticity of the \jpsi are compared to NLO QCD calculations in a colour singlet model and agreement is found. Diffractive \psiprime production has been observed and a first estimate of the ratio to \jpsi production in the HERA energy regime is given.
description: 27 pages, latex, 9 Figures appended as uuencoded file, figure 8b replaced
Alopecosa pulverulenta
Creators: name: Ponomarev, A. V.
name: Bragina, T. M.
name: Shmatko, V. Yu.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa pulverulenta

description: Alopecosa pulverulenta (Clerck, 1758)
Брагина, 2012.
 МатериаΛ. 1♂, Наурзумский бор, 4.05.2014; 5♂, 1♀, Терсек, степь, 17.05.2014; 1♂, 1♀, КараменΑы, во Αворе Αома, 19.05.2014; 2♂, корΑон «СаΑ», супесчаная степь, 19.05.2014.
description: Published as part of Ponomarev, A. V., Bragina, T. M. & Shmatko, V. Yu., 2017, New data on spiders (Aranei) of the Naurzum State Natural Reserve (Kostanay Region, Kazakhstan), pp. 3-10 in Caucasian Entomological Bulletin 13 (1) on page 7, DOI: 10.23885/1814-3326-2017-13-1-3-10, http://zenodo.org/record/8145545
Coherent Evolution of Bouncing Bose-Einstein Condensates
Creators: name: Bongs, K.
name: Burger, S.
name: Birkl, G.
name: Sengstock, K.
name: Ertmer, W.
name: Rzazewski, K.
name: Sanpera, A.
name: Lewenstein, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We investigate the evolution of Bose-Einstein condensates falling under gravity and bouncing off a mirror formed by a far-detuned sheet of light. After reflection, the atomic density profile develops splitting and interference structures which depend on the drop height, on the strength of the light sheet, as well as on the initial mean field energy and size of the condensate. We compare experimental results with simulations of the Gross-Pitaevski equation. A comparison with the behaviour of bouncing thermal clouds allows to identify quantum features specific for condensates.
description: 4 pages
Indirect Detection of Dark Matter in km-size Neutrino Telescopes
Creators: name: Bergstrom, L.
name: Edsjo, J.
name: Gondolo, P.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Neutrino telescopes of kilometer size are currently being planned. They will be two or three orders of magnitude bigger than presently operating detectors, but they will have a much higher muon energy threshold. We discuss the trade-off between area and energy threshold for indirect detection of neutralino dark matter captured in the Sun and in the Earth and annihilating into high energy neutrinos. We also study the effect of a higher threshold on the complementarity of different searches for supersymmetric dark matter.
description: 16 pages, 16 figures, uses RevTeX
Thermodynamics of Spacetime: The Einstein Equation of State
Creators: name: Jacobson, Ted
Publisher: name: arXiv
Year: 1995
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Einstein equation is derived from the proportionality of entropy and horizon area together with the fundamental relation $δQ=TdS$ connecting heat, entropy, and temperature. The key idea is to demand that this relation hold for all the local Rindler causal horizons through each spacetime point, with $δQ$ and $T$ interpreted as the energy flux and Unruh temperature seen by an accelerated observer just inside the horizon. This requires that gravitational lensing by matter energy distorts the causal structure of spacetime in just such a way that the Einstein equation holds. Viewed in this way, the Einstein equation is an equation of state. This perspective suggests that it may be no more appropriate to canonically quantize the Einstein equation than it would be to quantize the wave equation for sound in air.
description: 8 pages, 1 figure. Revised version has core unchanged but paper rewritten and expanded to clarify the reasoning and to emphasize some points. One figure added
PREVALENCE AND KNOWLEDGE OF SCABIES AMONG DERMATOLOGY PATIENTS IN KALKAAL HOSPITAL AFARTA DARJIIN
Creators: name: Qali, Ahmed Barkadle
Publisher: name: Zenodo
Year: 2025
Subjects: PREVALENCE AND KNOWLEDGE OF SCABIES
DERMATOLOGY PATIENTS IN KALKAAL HOSPITAL AFARTA DARJIIN

description: Abstract

 Scabies are one of the most common dermatological conditions, accounting for a substantial proportion of skin diseases in many low- and middle-income countries. Globally, it is estimated to affect more than 200 million people at any time and more than 400 million people every year. (WHO), Its prevalence in Sub-Saharan Africa varied up to 33.7%, The prevalence of scabies in Nigeria is about 4.7% up to 65%.
Alopecosa steppica Ponomarev 2007
Creators: name: Ponomarev, A. V.
name: Bragina, T. M.
name: Shmatko, V. Yu.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa steppica

description: Alopecosa steppica Ponomarev, 2007
 МатериаΛ. 5♀, Наурзумский бор, 10.06– 17.07.2014; 1♀, КатантаΛ, степь, 11.06.2014; 1♀, Терсек, бор с березой, 26.06– 4.07.2014; 1♀, НГПЗ, корΑон «СаΑ», 25.05.2015; 1♀, Новый корΑон, 22.06.2015.
 Замечания. ВиΑ, новый ΑΛя фауны Казахстана. Известен с юга европейской части России [Пономарёв, 2007; Пономарёв, Хныкин, 2013].
description: Published as part of Ponomarev, A. V., Bragina, T. M. & Shmatko, V. Yu., 2017, New data on spiders (Aranei) of the Naurzum State Natural Reserve (Kostanay Region, Kazakhstan), pp. 3-10 in Caucasian Entomological Bulletin 13 (1) on page 7, DOI: 10.23885/1814-3326-2017-13-1-3-10, http://zenodo.org/record/8145545
The Isolated Photon Cross Section in the Central and Forward Rapidity Regions in p-pbar Collisions at sqrt(s) = 1.8 TeV
Creators: name: Abachi, S.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A measurement of the cross section for production of single, isolated photons is reported for transverse energies in the range of 10-125 GeV, for two regions of pseudorapidity, |η|<0.9 and 1.6
description: 9 pages, submitted to Physical Review Letters, http://d0sgi0.fnal.gov/~womersle/photon_prl_preprint.ps
Interplay between tilt, disorder, and Coulomb interaction in type-I Dirac fermions
Creators: name: Zhao, Peng-Lu
name: Wang, An-Min
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the mutual influence of tilt, disorder, and Coulomb interaction in a type-I Dirac semimetal (DSM) with $x$-direction tilt by performing a renormalization group analysis. The interplay between disorder and ordinary tilt generates an effective tilt along the $x$-direction, which is the physically observable one. There exist two types of disorder which increase the effective tilt and drive a phase transition from the DSM phase to the diffusive metal phase. The diffusive phase transition stops the increase of the effective tilt and the surface of the original Dirac cone in the diffusive metal phase is just slightly tilted. Surprisingly, the Dirac point is replaced by a bulk nodal arc in the diffusive metal phase. The Coulomb interaction suppresses the diffusive phase transition and therefore is harmful to the formation of bulk nodal arc. In contrast, there also exists other two types of disorder which reduce the effective tilt and induce no phase transition. For these two types of disorder, the Coulomb interaction enhances their low-energy relevances. Coexistence of Coulomb interaction with any of them leads to a stable infrared fixed point where the coupling strengths for two kinds of interaction are identical and the effective tilt vanishes. The original tilted Dirac semimetal now reacts like an untilted and interaction-free Dirac semimetal. Our results show that interplay between tilt, disorder, and Coulomb interaction results in rich low-energy properties for the tilted Dirac fermions.
description: 12+8 pages, 9 figures, accepted for publication in Phys. Rev. B
Radiative Leptonic Decays of $B_c $ Meson
Creators: name: Chang, Chao-Hsi
name: Cheng, Jian-Ping
name: Lu, Cai-Dian
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: To the leading order, the radiative leptonic decays $B_c \to γ\ell \bar ν$ ($ \ell=e, μ$) are studied carefully. In the study, a non-relativistic constituent quark model and the effective Lagrangian for the heavy flavour decays are used. As a result, the branching ratios turn out to be of the orders of $10^{-5}$ for $B_c \to γμ\bar ν$ or for $B_c \to γe \bar ν$. Based on this study, we point out the decays being accessible experimentally at the future LHC, and the possibility to determine the decay constant $f_{B_c}$ through the radiative decays.
description: 9 pages Latex, including 2 figures
Knotted Non-Hermitian Metals
Creators: name: Carlström, Johan
name: Stålhammar, Marcus
name: Budich, Jan Carl
name: Bergholtz, Emil J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences
subject: 81v70

description: We report on the occurrence of knotted metallic band structures as stable topological phases in non-Hermitian (NH) systems. These knotted NH metals are characterized by open Fermi surfaces, known in mathematics as Seifert surfaces, that are bounded by knotted lines of exceptional points. Quite remarkably, and in contrast to the situation in Hermitian systems, no fine tuning or symmetries are required in order to stabilize these exotic phases of matter. By explicit construction, we derive microscopic tight-binding models hosting knotted NH metals with strictly short-ranged hopping, and investigate the stability of their topological properties against perturbations. Building up on recently developed experimental techniques for the realization of NH band structures, we discuss how the proposed models may be experimentally implemented in photonic systems.
description: Editors' Suggestion 5 pages, 3 figures
TA'LIM VA MEDIA: XXI ASR, BOSHLANGʻICH TA'LIMDA INGLIZ TILINI OʻQITISHDA INNOVATSION YONDASHUVLAR VA MEDIA TEXNOLOGIYALAR
Creators: name: Valiyeva, Shaxlo
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada ingliz tili oʻqitishda boshlangʻich sinf oʻquvchilarining mediakompetentligini rivоjlantirishning pedagogik xususiyatlari koʻrsatib berilgan. Shuningdek, zamonaviy pedagogik yondashuvlar, samarali usullardan namunalar berilgan.
Electrical conductivity and relaxation via colored noise in a hadronic gas
Creators: name: Hammelmann, Jan
name: Torres-Rincon, Juan M.
name: Rose, Jean-Bernard
name: Greif, Moritz
name: Elfner, Hannah
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Motivated by the theory of relativistic hydrodynamic fluctuations we make use of the Green-Kubo formula to compute the electrical conductivity and the (second-order) relaxation time of the electric current of an interacting hadron gas. We use the recently developed transport code SMASH to numerically solve the coupled set of Boltzmann equations implementing realistic hadronic interactions. In particular, we explore the role of the resonance lifetimes in the determination of the electrical relaxation time. As opposed to a previous calculation of the shear viscosity we observe that the presence of resonances with lifetimes of the order of the mean-free time does not appreciably affect the relaxation of the electric current fluctuations. We compare our results to other approaches describing similar systems, and provide the value of the electrical conductivity and the relaxation time for a hadron gas at temperatures between T=60 MeV and T=150 MeV.
description: 29 pages, 11 figures. Typos corrected, new references incorporated and minor clarifications added. Version to be published by the Physical Review D journal
Broadband Circular Polarization Time-Domain Terahertz Spectroscopy
Creators: name: Jasper, Evan V.
name: Mai, T. T.
name: Warren, M. T.
name: Smith, R. K.
name: Heligman, D. M.
name: McCormick, E.
name: Ou, Y. S.
name: Sheffield, M.
name: Aguilar, R. Valdés
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Light-matter interactions are key in providing fundamental information about materials. Even in the linear-response regime, the spectroscopic response of a material encodes in it many properties of the ground state as well as of its excitations. This knowledge has been critical in our understanding of novel quantum materials, and the further improvement and extensions of linear spectroscopy will continue to be key in the exploration of novel states of matter. We report the development of broadband circular polarization spectroscopy in the terahertz range of the electromagnetic spectrum. We take advantage of a recent design of a broadband quarter wave plate, based on the Fresnel rhomb concept, and use it in conjunction with a polarization modulation technique to provide direct information of the response of a material to circularly polarized THz radiation; a new capability shown here for the first time. As an example of this technique we study the cyclotron resonance of a 2D electron gas from a AlGaAs-GaAs quantum well. We demonstrate the unique advantages that this technique will bring in the study of novel quantum materials.
description: 7 pages, 4 figures
Self-consistent theory of shot noise in nondegenerate ballistic conductors
Creators: name: Bulashenko, O. M.
name: Rubi, J. M.
name: Kochelap, V. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A self-consistent theory of shot noise in ballistic two-terminal conductors under the action of long-range Coulomb correlations is presented. Analytical formulas for the electron distribution function and its fluctuation along the conductor, which account for the Coulomb correlations, have been derived. Based upon these formulas, the current-noise reduction factor has been obtained for biases ranging from thermal to shot-noise limits as dependent on two parameters: the ratio between the length of the sample and the Debye screening length λ=d/L_D and the applied voltage qU/k_BT. The difference with the formulas for a vacuum diode is discussed.
description: 21 pages, 11 figs, minor changes
Alopecosa sulzeri
Creators: name: Ponomarev, A. V.
name: Bragina, T. M.
name: Shmatko, V. Yu.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa sulzeri

description: Alopecosa sulzeri (Pavesi, 1873)
Брагина, 2012.
 МатериаΛ. 2♂, 1♀, Терсек, степь, 17.05.2014; 18♂, Терсек, бор с березой, 26.06– 4.07.2014; 1♂, Бет-Агач, степь, 31.05.2014; 9♂, Наурзумский бор,10.06– 17.07.2014; 2♀, корΑон «СаΑ», степь, 27.06.2014.
description: Published as part of Ponomarev, A. V., Bragina, T. M. & Shmatko, V. Yu., 2017, New data on spiders (Aranei) of the Naurzum State Natural Reserve (Kostanay Region, Kazakhstan), pp. 3-10 in Caucasian Entomological Bulletin 13 (1) on page 7, DOI: 10.23885/1814-3326-2017-13-1-3-10, http://zenodo.org/record/8145545
Isospin Splittings of Baryons
Creators: name: Varga, K.
name: Genovese, M.
name: Richard, J. -M.
name: Silvestre-Brac, B.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the isospin-breaking mass differences among baryons, with particular attention in the charm sector to the $Σ_c^{+}-Σ_c^0$, $Σ_c^{++}-Σ_c^0$, and $Ξ_c^+-Ξ_c^0$ splittings. Simple potential models cannot accommodate the trend of the available data on charm baryons. More precise measurements would offer the possibility of testing how well potential models describe the non-perturbative limit of QCD.
description: 4 pages, aipproc.sty, Proceeding of Hadron 97