cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Uniqueness Theorem for Black Hole Space-Times with Multiple Disconnected Horizons
Creators: name: Armas, Jay
name: Harmark, Troels
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show uniqueness of stationary and asymptotically flat black hole space-times with multiple disconnected horizons and with two rotational Killing vector fields in the context of five-dimensional minimal supergravity (Einstein-Maxwell-Chern-Simons gravity). The novelty in this work is the introduction in the uniqueness theorem of intrinsic local charges measured near each horizon as well as the measurement of local fluxes besides the asymptotic charges that characterize a particular solution. A systematic method of defining the boundary conditions on the fields that specify a black hole space-time is given based on the study of its rod structure (domain structure). Also, an analysis of known solutions with disconnected horizons is carried out as an example of an application of this theorem.
description: 28 pages, 5 figures. v3: Further improvements on uniqueness theorem, Lemma introduced for clarity of derivation, new quantities introduced to treat special case with zero flux, refs. added, typos fixed
Reciprocal locomotion of dense swimmers in Stokes flow
Creators: name: Gonzalez-Rodriguez, David
name: Lauga, Eric
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Due to the kinematic reversibility of Stokes flow, a body executing a reciprocal motion (a motion in which the sequence of body configurations remains identical under time reversal) cannot propel itself in a viscous fluid in the limit of negligible inertia; this result is known as Purcell's scallop theorem. In this limit, the Reynolds numbers based on the fluid inertia and on the body inertia are all zero. Previous studies characterized the breakdown of the scallop theorem with fluid inertia. In this paper we show that, even in the absence of fluid inertia, certain dense bodies undergoing reciprocal motion are able to swim. Using Lorentz's reciprocal theorem, we first derive the general differential equations that govern the locomotion kinematics of a dense swimmer. We demonstrate that no reciprocal swimming is possible if the body motion consists only of tangential surface deformation (squirming). We then apply our general formulation to compute the locomotion of four simple swimmers, each with a different spatial asymmetry, that perform normal surface deformations. We show that the resulting swimming speeds (or rotation rates) scale as the first power of a properly defined "swimmer Reynolds number'', demonstrating thereby a continuous breakdown of the scallop theorem with body inertia.
Using Bioenergetics and Radar-Derived Bird Abundance to Assess the Impact of a Blackbird Roost on Seasonal Sunflower Damage
Creators: name: Clark, Bonne A.
name: Klug, Page E.
name: Stepanian, Phillip M.
name: Kelly, Jeffrey F.
Publisher: name: Utah State University
Year: 2021

description: Methods aimed at reducing avian damage to agricultural crops are routinely implemented in situations where efficacy can be assessed by quantifying blackbird (Icteridae) abundance relative to environmental variables and extrapolating to ensuing crop damage. Concomitantly, Weather Surveillance Radar (WSR) data may have potential to enhance crop damage mitigation through improved monitoring of nuisance wildlife populations. We used WSR to derive daily abundance estimates of blackbirds at a fall roost in North Dakota, USA from 2012 to 2019. We integrated these estimates with previously developed bioenergetics-economic models to estimate local sunflower (Helianthus annuus) damage. The greatest losses usually occurred during a brief period in October, when peak blackbird abundance coincided with large percentages (>50%) of mature but unharvested sunflower fields. Most sunflower fields were harvested later than peak blackbird abundance (360,000–1,120,000 birds) and maximum daily damages ($900–$2,000 USD per day). This seasonal trend suggests advancing harvest time as a strategy to avoid the greatest losses in yield (up to $1,800 in savings at this 1 roost), which may be attainable by earlier planting of early-maturing crop varieties or crop desiccation.
Feature selection in simple neurons: how coding depends on spiking dynamics
Creators: name: Famulare, Michael
name: Fairhall, Adrienne L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: The relationship between a neuron's complex inputs and its spiking output defines the neuron's coding strategy. This is frequently and effectively modeled phenomenologically by one or more linear filters that extract the components of the stimulus that are relevant for triggering spikes, and a nonlinear function that relates stimulus to firing probability. In many sensory systems, these two components of the coding strategy are found to adapt to changes in the statistics of the inputs, in such a way as to improve information transmission. Here, we show for two simple neuron models how feature selectivity as captured by the spike-triggered average depends both on the parameters of the model and on the statistical characteristics of the input.
description: 23 Pages, LaTeX + 4 Figures. v2 is substantially expanded and revised. v3 corrects minor errors in Sec. 3.6
СУФИЙСКИЕ МОТИВЫ В ПОЭЗИИ АБУ АБДУЛЛО РУДАКИ
Creators: name: Вахабова, Дилфуза
Publisher: name: Zenodo
Year: 2023

description: Суфизм, как духовное направление в исламе, оказал значительное влияние на многих поэтов и мыслителей. В данной статье рассматривается проявление суфийских идей в творчестве выдающегося поэта Абу Абдулло Рудаки (858-941). Анализируются суфийские мотивы и философские концепции, которые нашли отражение в его поэтических произведениях. Суфизм, как духовное течение в исламе, оказал глубокое влияние на творчество многих поэтов, раскрывая пути к духовному совершенству и внутреннему познанию. В данной научной статье рассматривается проявление суфийских идей в поэзии выдающегося персидского поэта и мыслителя IX века, Абу Абдулло Рудаки. Анализируются суфийские мотивы и философские концепции, которые нашли отражение в его поэтических произведениях.
Serum Chemistry Values in Wild Black Vultures in Mississippi, USA
Creators: name: Cunningham, Fred L.
name: Jack, Sherman W.
name: Deese, Amanda R.
name: Wengert, Eric R.
name: Van Why, Kyle
name: Huston, Carla L.
name: Lemmons, Scott
name: Minnis, Richard B.
Publisher: name: Utah State University
Year: 2021

description: Vultures (Cathartidae and Accipitridae) play an important role in ecosystem balance by rapidly disposing animal carcasses and thus preventing the potential spread of pathogens. Blood chemistry values provide a means of assessing the health of wildlife and wild animal populations; however, there are significant differences in chemistries among species and when comparing captive and free-living New and Old World vultures. In 2007, we collected blood serum from 30 female and 14 male wild, healthy black vultures (Coragyps atratus) live-trapped by the U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Wildlife Services from a power substation in Lowndes County, Mississippi, USA. We analyzed the blood serum to provide serum chemistry base values for use in clinical pathology. The chemical analytes we measured included sodium, chloride, potassium, carbon dioxide, anion gap, glucose, creatinine, calcium, phosphorus, total protein, albumin, globulin, and aspartate aminotransferase. In general, blood chemistry values of black vultures were similar to those found in New and Old World vultures and raptor species. Average chemistry values for males were lower than females for sodium, chloride, creatinine, calcium, total protein, albumin, and globulin. The serum chemistry values we describe in this paper can be important indicators of avian health by gender for the black vulture. Our study provided important blood chemistry values from a large sample size, which is rarely available in free-ranging black vultures. These values could be used by scientists, veterinary pathologists, wildlife rehabilitation centers, and other researchers for baseline data for wild and free-ranging birds. Furthermore, the use of such parameters in assessing population health may enable conservationists to further research environmental conditions affecting species reproduction and survival.
Field Guarding as a Crop Protection Method: Preliminary Implications for Improving Field Guarding
Creators: name: Findlay, Leah J.
name: Hill, Russell A
Publisher: name: Utah State University
Year: 2021

description: Negative interactions between crop farmers and wild primates are an issue of significant concern. Despite many crop farmers using field guards as a method of crop protection against foraging primates, there are very few published accounts of how effective this technique is and how it might be improved. To bridge this knowledge gap, we used direct observations from a hide to collect the behaviors of field guards, chacma baboons (Papio ursinus; baboons), and vervet monkeys (Chlorocebus pygerythrus; vervets) foraging in a 1-ha butternut squash (Cucurbita moschata) field for 4 months (May to August) in 2013 on a 564-ha commercial farm in the Blouberg District of South Africa. Only half of the crop-foraging events were chased by field guards, with vervets being chased much less frequently than baboons. Guards responded more often to events with greater primate numbers and to those that occurred earlier in the day. Guard delay in responding to crop-foraging events and baboon delay in responding to the guard both increased in the low productivity season. Baboon response delay also increased with more animals involved. Based on this case study, we suggest recommendations to improve the effectiveness of field guarding. This includes implementing an early warning alarm system, shortening field guard shifts, increasing guard numbers during the morning and low productivity season, and increasing the perceived fear of field guards, potentially by employing male guards or providing uniforms and deterrent accessories. Further evaluation in other local contexts will help determine how these findings can be adopted on a wider scale.
Application of Optimal Control to CPMG Refocusing Pulse Design
Creators: name: Borneman, Troy W.
name: Hurlimann, Martin D.
name: Cory, David G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We apply optimal control theory (OCT) to the design of refocusing pulses suitable for the CPMG sequence that are robust over a wide range of B0 and B1 offsets. We also introduce a model, based on recent progress in the analysis of unitary dynamics in the field of quantum information processing (QIP), that describes the multiple refocusing dynamics of the CPMG sequence as a dephasing Pauli channel. This model provides a compact characterization of the consequences and severity of residual pulse errors. We illustrate the methods by considering a specific example of designing and analyzing broadband OCT refocusing pulses of length 10 t180 that are constrained by the maximum instantaneous pulse power. We show that with this refocusing pulse, the CPMG sequence can refocus over 98% of magnetization for resonance offsets up to 3.2 times the maximum RF amplitude, even in the presence of +/- 10% RF inhomogeneity.
description: 23 pages, 10 figures; Revised and reformatted version with new title and significant changes to Introduction and Conclusions sections
Petrographic Analysis of Sand and Pottery from Perry Mesa, Central Arizona
Creators: name: Ownby, Mary
Publisher: name: Desert Archaeology, Inc.
Year: 2018
Subjects: subject: Perry Mesa
valueUri: https://core.tdar.org/browse/geographic-keyword/227/perry-mesa
subject: Late Classic Period
valueUri: https://core.tdar.org/browse/temporal-keyword/6068/late-classic-period
subject: Ancestral Puebloan
valueUri: https://core.tdar.org/browse/culture-keyword/19/ancestral-puebloan
subject: Hohokam
valueUri: https://core.tdar.org/browse/culture-keyword/21/hohokam
subject: Ceramic
valueUri: https://core.tdar.org/browse/material-type/1/ceramic
subject: Ceramic Petrography
valueUri: https://core.tdar.org/browse/other-keyword/138165/ceramic-petrography

description: Report provides the results of petrographic analyses of pottery and sand samples from Perry Mesa, central Arizona. The samples are plain ware dated to the Late Classic (A.D. 1280–1400; Pueblo III to Pueblo IV) from four major and several smaller sites. Results indicate several specific paste recipes that could have been made on Perry Mesa, but likely not at the major sites. Some pottery was also acquired from areas to the east of Perry Mesa. Companion to Kiva article, Abbott et al. 2021, "An Influx in the Thousands: Late Classic Migration to Perry Mesa"
Additional file 1 of Factors affecting the accuracy of prehospital triage application and prehospital scene time in simulated mass casualty incidents
Creators: name: Carenzo, Luca
name: Gamberini, Lorenzo
name: Crimaldi, Federico
name: Colombo, Davide
name: Ingrassia, Pier Luigi
name: Ragazzoni, Luca
name: Della Corte, Francesco
name: Caviglia, Marta
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1.
Theorem to generate Einstein-Non Linear Maxwell Fields
Creators: name: Mazharimousavi, S. Habib
name: Gurtug, O.
name: Halilsoy, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a theorem in d-dimensional static, spherically symmetric spacetime in generic Lovelock gravity coupled with a non-linear electrodynamic source to generate solutions. The theorem states that irrespective of the order of the Lovelock gravity and non-linear Maxwell (NLM) Lagrangian, for the pure electric field case the NLM equations are satisfied by virtue of the Einstein-Lovelock equations. Applications of the theorem, specifically to the study of black hole solutions in Chern-Simons (CS) theory is given. Radiating version of the theorem has been considered, which generalizes the Bonnor-Vaidya (BV) metric to the Lovelock gravity with a NLM field as a radiating source. We consider also the radiating power - Maxwell source (i.e. $\(F_{μν}F^{μν}\)^{q},$ $q=$ finely - tuned constant) within the context of Lovelock gravity.
description: 20 pages, 4 figures
A computer-based environment for compression experiments with code sounds from the lexiphone
Creators: name: Martin, Willis Pittman
Publisher: name: University of British Columbia
Year: 2011

description: The Lexiphone is a reading machine for the blind which makes an optical to auditory transformation from the printed character to a sound code. This thesis is the development of a computer-based environment for studying the code. Fluctuations in the code signals generated by repeated scanning of the same ink pattern were studied using a Fourier analysis routine. From the Fourier coefficients representing these code signals it was established that the error in mean pitch of the code sound produced for the letter "s" is less than 1%. This error is typical for the alphabet and does not cause the blind user difficulty. The method of compressing the code signals is explained and studied with the aid of a Hadamard transform routine. This transform permits ready, comparison of compressed and uncompressed code signals. The results of direct comparisons between uncompressed code and compressed code are disappointing: the two presentations seem approximately equivalent. The reading rate in words per minute for a blind subject trained to read with the uncompressed code was not improved with the compressed code. A previous worker had found that the compressed code for letters was better discriminated and easier to learn. In. another experiment reported in the thesis six sighted subjects were used: three subjects were taught eight four-letter words presented in uncompressed code and the other three were taught the same words in a compressed version of the code. The learning curves for the two groups were approximately the same. Experimental time for subject testing was less than that used by the previous worker and suggestions are made for further experiments which may elucidate the problem of reading compressed code.
Additional file 4 of Coping with COVID-19: a prospective cohort study on young Australians' anxiety and depression symptoms from 2020–2021
Creators: name: Orozco, Ana
name: Thomas, Alexander
name: Raggatt, Michelle
name: Scott, Nick
name: Eddy, Sarah
name: Douglass, Caitlin
name: Wright, Cassandra J. C.
name: Spelman, Tim
name: Lim, Megan S. C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: Mental Health
subject: Hematology
subject: Computational Biology

description: Supplementary Material 4.
Solutions for real dispersionless Veselov-Novikov hierarchy
Creators: name: Chang, Jen-Hsu
name: Chen, Yu-Tung
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We investigate the dispersionless Veselov-Novikov (dVN) equation based on the framework of dispersionless two-component BKP hierarchy. Symmetry constraints for real dVN system are considered. It is shown that under symmetry reductions, the conserved densities are therefore related to the associated Faber polynomials and can be solved recursively. Moreover, the method of hodograph transformation as well as the expressions of Faber polynomials are used to find exact real solutions of the dVN hierarchy.
description: 14 pages
Presences et absences au monde chez Henri Michaux
Creators: name: Duval, Claude J.
Publisher: name: University of British Columbia
Year: 2011

description: The French surrealist poet, Henri Michaux, has remained aloof from all groups and schools of writers, preferring to pursue independently his principal aim in writing which is to resolve, or at least approach, the problem of being, the problem of the meaning of life itself. His works reveal two distinct visions of the world. One is the real world, the world of the outside, of tangible things and places, the world of the daily routine of reality. The other is the imaginary world, the world of the inside, of the "self", the world of dreams, fantasies, inventions and hallucinations. In each of these worlds, Michaux is threatened by what he calls '"presences'* and '"absences". The former represent all the hostile forces in his worlds, all the things which get in the way and add to the anxiety of his existence. The latter represent nothingness, complete emptiness, the great void which brings fear and solitude. Confronted with these "presences" and "absences", his mental life becomes one of anguish. It is the purpose of this study to identify the "presences" and "absences", to define them, whenever possible, and to show how they form, in large measure, the poetic world of Henri Michaux.
Management of the Brown-Headed Cowbird: Implications for Endangered Species and Agricultural Damage Mitigation
Creators: name: Peer, Brian D
name: Kus, Barbara E.
name: Whitfield, Mary J.
name: Hall, Linnea S.
name: Rothstein, Stephen I.
Publisher: name: Utah State University
Year: 2021

description: The brown-headed cowbird (Molothrus ater; cowbird) is unique among North American blackbirds (Icteridae) because it is managed to mitigate the negative effects on endangered songbirds and economic losses in agricultural crops. Cowbird brood parasitism can further affect species that are considered threatened or endangered due to anthropogenic land uses. Historically, cowbirds have often been culled without addressing ultimate causes of songbird population declines. Similar to other North American blackbirds, cowbirds depredate agricultural crops, albeit at a lower rate reported for other blackbird species. Conflicting information exists on the extent of agricultural damage caused by cowbirds and the effectiveness of mitigation measures for application to management. In this paper, we reviewed the progress that has been made in cowbird management from approximately 2005 to 2020 in relation to endangered species. We also reviewed losses to the rice (Oryza sativa) crop attributed to cowbirds and the programs designed to reduce depredation. Of the 4 songbird species in which cowbirds have been managed, both the Kirtland’s warbler (Dendroica kirtlandii) and black-capped vireo (Vireo atricapilla) have been removed from the endangered species list following population increases in response to habitat expansion. Cowbird trapping has ceased for Kirtland’s warbler but continues for the vireo. In contrast, least Bell’s vireo (V. bellii pusillus) and southwestern willow flycatcher (Empidonax traillii extimus) still require cowbird control after modest increases in suitable habitat. Our review of rice depredation by cowbirds revealed models that have been created to determine the number of cowbirds that can be taken to decrease rice loss have been useful but require refinement with new data that incorporate cowbird population changes in the rice growing region, dietary preference studies, and current information on population sex ratios and female cowbird egg laying. Once this information has been gathered, bioenergetic and economic models would increase our understanding of the damage caused by cowbirds.
Twistor Theory for CR quaternionic manifolds and related structures
Creators: name: Marchiafava, S.
name: Ornea, L.
name: Pantilie, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C28, 53C26

description: In a general and non metrical framework, we introduce the class of CR quaternionic manifolds containing the class of quaternionic manifolds, whilst in dimension three it particularizes to, essentially, give the conformal manifolds. We show that these manifolds have a rich natural Twistor Theory and, along the way, we obtain a heaven space construction for quaternionic manifolds.
description: The paper has been split into two parts: 1. S. Marchiafava, L. Ornea, R. Pantilie, Twistor Theory for CR quaternionic manifolds and related structures; 2. S. Marchiafava, R. Pantilie, Twistor Theory for co-CR quaternionic manifolds and related structures. This is the first part. The second part will, also, be posted on the ArXiv; Monatshefte fuer Mathematik, 2011
Unitarity violation in sequential neutrino mixing in a model of extra dimensions
Creators: name: Bhattacharya, Subhaditya
name: Dey, Paramita
name: Mukhopadhyaya, Biswarup
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of unitarity violation in the sequential neutrino mixing matrix in a scenario with extra compact spacelike dimensions. Gauge singlet neutrinos are assumed to propagate in one extra dimension, giving rise to an infinite tower of states in the effective four-dimensional theory. It is shown that this leads to small lepton-number violating entries in the neutrino mass matrix, which can violate unitarity on the order of one per cent.
description: 16 pages, 2 tables
The Formation of Black Communities in Northwest Chapel Hill
Creators: name: Wainwright, Anna
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: he racial history of Chapel Hill has similarities with the national narrative (e.g. racialized violence, biased media coverage, etc.), however, in many ways, it is dissimilar. Most significantly, UNC held a high level of influence over the development of Chapel Hill as a town while promoting racist ideologies and controlling a majority of the black workforce. Within this context, a number of black landowners (e.g. Durwood O’Kelley, Vann Nunn, W.R. Lloyd, etc.) acquired land in northwest Chapel Hill, oftentimes subdividing it and selling to other black individuals and families, which contributed to the creation of the strictly black communities seen in this area in the early 20th century. These conclusions were made by cross referencing land ownership maps and land transfer records.
Additional file 9 of The clinical impact of IKZF1 mutation in acute myeloid leukemia
Creators: name: Zhang, Xiang
name: Huang, Aijie
name: Liu, Lixia
name: Qin, Jiayue
name: Wang, Chengcheng
name: Yang, Min
name: Lou, Yinjun
name: Wang, Lei
name: Ni, Xiong
name: Hu, Xiaoxia
name: Tang, Gusheng
name: Zhang, Mengmeng
name: Cao, Shanbo
name: Mao, Liping
name: Qian, Jiejin
name: Xu, Weilai
name: Wei, Juying
name: Xu, Gaixiang
name: Meng, Haitao
name: Mai, Wenyuan
name: Yang, Chunmei
name: Zhu, Honghu
name: Tong, Hongyan
name: Yang, Jianmin
name: Yu, Wenjuan
name: Wang, Jianmin
name: Jin, Jie
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Cancer
subject: Hematology

description: Additional file 9: Table S6. The influence of IKZF1 mutation on AML with different SF3B1-mutated status.
Supplementary document for Coded aperture temporal compressive digital holographic microscopy - 6616732.pdf
Creators: name: Dou, yufei
name: Cao, Miao
name: Wang, Xiaodong
name: Liu, Xing
name: Yuan, Xin
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: This document presents the details of the transmissive coded aperture temporal compressive digital holographic microscopy setup~\cite{yamaguchi2006phase} and a comparative assessment of the reconstruction algorithms
Development of an online portal and metadata catalogue of Earth observation data types, sources and products for human health research in exposomics
Creators: name: Kamel-Boulos, MN
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 420699
subject: Public health not elsewhere classified
classificationCode: 419999
subject: Other environmental sciences not elsewhere classified
classificationCode: 329999
subject: Other biomedical and clinical sciences not elsewhere classified
classificationCode: 401304
subject: Photogrammetry and remote sensing

description: Cite as: Kamel Boulos MN, Iyyanki MV, Dewan A, Bwambale B, Koh K. Development of an online portal and metadata catalogue of Earth observation data types, sources and products for human health research in exposomics (Extended Abstract/Oral Presentation). In Proceedings of ISPRS Geospatial Week 2023, Cairo, Egypt, 2-7 September 2023. https://gsw2023.com/
ТЯЖЕЛЫЕ ВЫСОКОВЯЗСКИЕ НЕФТИ ВОЛГО-УРАЛЬСКОЙ ОБЛАСТИ: УСЛОВИЯ ОБРАЗОВАНИЯ И ПЕРСПЕКТИВЫ ОСВОЕНИЯ
Creators: name: Анисимов Леонид Алексеевич
name: О. М. Кононенко
name: Л. П. Кононенко
Publisher: name: Недра Поволжья и Прикаспия
Year: 2020
Subjects: Волго-Уральская область
тяжелые нефти
вязкость
сера
парафин
разработка

description: проведен анализ распространения тяжелых высоковязких нефтей Волго-Уральской области в зависимости от геологических факторов и их физико-химических параметров. Сделаны выводы об условиях образования и формирования залежей. Рассмотрена необходимость специальных исследований по выбору и обоснованию объектов, где освоение ресурсов тяжелых нефтей является рациональным как с точки зрения строения залежи, их положения в пределах месторождения, так и с точки зрения эффективности использования современных методов их разработки.
Additional file 4 of Analysis of the AMT gene family in chili pepper and the effects of arbuscular mycorrhizal colonization on the expression patterns of CaAMT2 genes
Creators: name: Fang, Lei
name: Wang, Miaomiao
name: Chen, Xiao
name: Zhao, Jianrong
name: Wang, Jianfei
name: Liu, Jianjian
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 4: Figure S1. Phylogenetic tree analysis of AMT family genes from pepper, eggplant, rice, tomato, Arabidopsis, potato, and Medicago. Figure S2. The predicted transmembrane domains of CaAMT proteins. Figure S3. Chromosomal location analysis of pepper AMT genes. The eight AMT genes were mapped to five different chromosomes using TBtools software. Figure S4. Effects of overexpression of CaAMT2.2 on tomato N accumulation under different NH4+ supply conditions.
ИННОВАЦИОННАЯ ТЕХНОЛОГИЯ СКВАЖИННОЙ ДОБЫЧИ ТВЕРДЫХ КАУСТОБИОЛИТОВ (ГОРЮЧИХ СЛАНЦЕВ) ДЛЯ ПОЛУЧЕНИЯ БЛИЗПОВЕРХНОСТНОЙ СЛАНЦЕВОЙ НЕФТИ НА КОЦЕБИНСКОМ МЕСТОРОЖДЕНИИ ВОЛЖСКОГО БАССЕЙНА
Creators: name: В. С. Илясов
name: В. Н. Илясов
name: В. Н. Староверов
Publisher: name: Недра Поволжья и Прикаспия
Year: 2020
Subjects: горючие сланцы
Волжский бассейн
Коцебинское месторождение
инновационная скважинная добыча
добывающая установка

description: статья посвящена инновационной скважинной технологии для разработки горючих сланцев Коцебинского месторождения, залегающих на глубине от 30 до 50 метров и выдержанных на большой площади. Дана краткая стратиграфическая и тектоническая характеристика объекта, детально рассмотрена сланценосность, а также выделены наиболее перспективные объекты и зоны для будущей разработки. Описан процесс технологии добычи горючего сланца и добывающая установка.
Brans-Dicke Theory and primordial black holes in Early Matter-Dominated Era
Creators: name: Nayak, Bibekananda
name: Singh, Lambodar Prasad
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that primordial black holes can be formed in the matter-dominated era with gravity described by the Brans-Dicke theory. Considering an early matter-dominated era between inflation and reheating, we found that the primordial black holes formed during that era evaporate at a quicker than those of early radiation-dominated era. Thus, in comparison with latter case, less number of primordial black holes could exist today. Again the constraints on primordial black hole formation tend towards the larger value than their radiation-dominated era counterparts indicating a significant enhancement in the formation of primordial black holes during the matter-dominaed era.
description: 9 pages
ИМПАКТИТЫ В ЧЕТВЕРТИЧНЫХ ОТЛОЖЕНИЯХ ВОРОНЕЖСКОЙ АНТЕКЛИЗЫ
Creators: name: Жабин Александр Васильевич
name: А. А. Дубков
name: Г. С. Золотарева
name: Ю. А. Кузнецов
Publisher: name: Недра Поволжья и Прикаспия
Year: 2020
Subjects: Воронежская антеклиза
импактиты
четвертичное время
стишовит
муллит
геленит
золото
платиноиды

description: столкновениями космических объектов с Землей объясняются массовые вымирания, происходившие в разные временные интервалы в истории планеты, образования крупных котловин, размером в десятки и сотни километров, например Попигайской и Аризонской. Считается, что падение только крупных тел на поверхность Земли приводит к катастрофическим последствиям. При этом практически совсем не рассматриваются возможные влияния на изменения климата и, как следствие, вымирание отдельных групп биологических объектов, при ковровой бомбардировке значительных территорий достаточно мелкими (размером от нескольких, до первых десятков метров) метеоритами. На спутниковых картах территории Центрально-Черноземных областей наблюдаются кольцевые образования, диаметр которых колеблется от 20,0 м до 2,0 км. На местности они выделяются округлыми впадинами, часто заболоченными, окруженными валом, шириной от первых десятков до сотен метров. Минеральный состав пород, ассоциирующийся с ними, и морфологические особенности рельефа, образованного явно взрывными явлениями, заставляют полагать, что во временном промежутке (конец плейстоцена – начало голоцена) не только данная территория, но и все северное полушарие подверглись интенсивной бомбардировке обломками, составляющими ядро кометы.
Information on the structure of the rho meson from the pion form-factor
Creators: name: Leupold, Stefan
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The electromagnetic pion form-factor is calculated in a Bethe-Salpeter approach which accounts for pion rescattering. In the scattering kernel the pion-pion contact interaction from lowest-order chiral perturbation theory is considered together with an optional vector meson in the s-channel. Correspondingly the virtual photon couples to a two-pion state and optionally to the vector meson. It is shown that for reasonable ranges of input parameters the experimentally observed pion form-factor cannot be described by the iterated pion-pion contact interaction alone, i.e. without an elementary vector meson. The inclusion of an elementary vector meson allows for an excellent description. This completes a recent study (``Information on the structure of the a_1 from tau decay'') where it has been shown that the a_1 meson can be well understood as a rescattering process of rho meson and pion. Here it is demonstrated that within the same formalism the rho meson cannot be understood as a pion-pion rescattering process. This suggests that the chiral partners a_1 and rho are not only different in mass, but also different in nature.
description: 12 pages
Honore de Balzac et son theatre
Creators: name: Duncan, Paul Brayton
Publisher: name: University of British Columbia
Year: 2011

description: In studying the theatre of Balzac it is necessary to look at the financial conditions of the writer of the Comédie Humaine who began by writing a tragedy in the classical genre at the age of nineteen and then abandoned plays in favor of novels because of adverse reactions to his first attempt. For seventeen years, Balzac wrote novels, yet increased his debts; finally he turned to the writing of a play, hoping to earn enough money to ease his financial burden. From 1837 to the end of his life he was gripped by the double obsession of having a literary success in the theatre and of producing a play which would bring him large receipts. Continuing his prodigious work as a novelist, he was never able to rid himself of the feeling that in the theatre there was both a literary and a financial success waiting for him. Consequently he periodically returned to playwriting in an attempt to satisfy his ambitions. The Correspondance of Balzac, including general letters and the letters to Madame Hanska, make many allusions to the hopes the writer had for his success in the theatre. At the same time his complaints about his indebtedness ring out with much force. Often Balzac ties the two together by saying that he could pay his debts if only he could succeed with a play. Thus, it is necessary to lean heavily on the Correspondance of Balzac to find the information essential to an interpretation of Balzac as a dramatist. Aside from the information contained in Balzac's letters and commentaries by contemporaries such as Théophile Gautier, Léon Gozlan, and other critics, it is somewhat difficult to find extensive information about Balzac and his attempts at drama. However, some secondary sources have been used to support findings in the letters or to elaborate on the interpretation of some aspect or another of Balzac as a writer and as a debtor. A third source of information has been the sis plays themselves. A resume and an analysis of each play shows the themes which preoccupied Balzac, usually dealing with some realistic aspect of the mores of bourgeois society or having a financial motif. A study of the plays also shows development in Balzac's theatrical writings and demonstrates that he was coming to a point of accomplishment at the time he wrote his last play, only two years before his death. One concludes that, pushed by the desire to earn large sums of money to pay his debts, Balzac was less careful in writing plays than novels. Thinking only of finishing as quickly as possible in order to put the play on the stage, he fell into a trap of his own making, being somewhat careless about the actual writing of the plays and giving far too much attention to finding a theatre and getting partisans to the premiere. On the other hand, it is obvious that he was on the track of a new kind of theatre—realistic theatre reflecting the mores of the society in which he lived, much as he described society in detail in his Comédie Humaine.
НОВАЯ ЛУЧЕПЕРАЯ РЫБА (ACTINOPTERYGII) ИЗ ПОГРАНИЧНЫХ ОТЛОЖЕНИЙ СРЕДНЕЙ И ВЕРХНЕЙ ПЕРМИ ЮГО-ВОСТОКА РУССКОЙ ПЛИТЫ
Creators: name: Миних Алла Васильевна
Publisher: name: Недра Поволжья и Прикаспия
Year: 2020
Subjects: средняя и верхняя пермь
новый род
новый вид
ихтиофауна
Восточно-Европейская платформа

description: на западе Оренбургской области в пограничных отложениях средней и верхней перми бассейна реки Малая Кинель по чешуйному покрову описана новая лучеперая рыба Kinelichthys bulanovi, gen. et sp. nov. из класса Actinopterygii. Близкие по морфологическому строению к кинелихтису чешуйные ихтиолиты установлены в регионе еще в нескольких местонахождениях того же возраста.
Competing orders suppressed by disorder around a hidden quantum critical point in cuprate high Tc superconductors
Creators: name: Sanna, S.
name: Rigoldi, F. Coneri. A.
name: Concas, G.
name: Giblin, S.
name: De Renzi, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report extensive muon spin rotation measurements on the lightly doped Y1-xCaxBa2Cu3O6+y compound, which allows us to disentangle the effect of disorder, controlled by random Ca2+ substitution, from that of mere doping. A 3D phase diagram of lightly doped cuprates is accurately drawn, showing that a thermally activated antiferromagnetic phase competes with superconductivity around a quantum critical point, hidden underneath a frozen insulating magnetic state. Disorder suppresses both competing order parameters and unveils the underlying frozen state. Doping and disorder destroy the activated magnetic phase along a line of first order phase transitions that ends at the critical point.
description: 4 figures, v.2: new more intuitive 3D cuprate phase diagram
О САНТОНСКИХ ОТЛОЖЕНИЯХ ВОЛЬСКИХ МЕЛОВЫХ КАРЬЕРОВ
Creators: name: Сельцер Владимир Борисович
name: Е. М. Первушов
name: Е. А. Калякин
Publisher: name: Недра Поволжья и Прикаспия
Year: 2020
Subjects: верхний мел
коньяк
сантон
нижний кампан
иноцерамы
белемниты
морские ежи
кремниевые губки
эласмобранхии
Правобережное Поволжье

description: в карбонатных карьерах в окрестностях г. Вольска выявлены отложения сантонского яруса, представленные горизонтом, обогащенным глауконитом и фосфоритовыми включениями. Приведены краткие описания изученных разрезов. Прослежено вертикальное распространение ископаемой фауны. По результатам изучения иноцерам, белемнитов, губок и эхиноидей установлено присутствие нижнего и верхнего сантона, а также образований нижнего кампана. Впервые выделены ранее неизвестные на юго-востоке Русской плиты комплексы кремниевых губок и эласмобранхий.
СОДЕРЖАНИЕ ЦИНКА И МЕДИ В ВОДНОМ СТОКЕ ОВРАЖНО-БАЛОЧНЫХ СИСТЕМ ГОРОДОВ САРАТОВА И ВОЛЬСКА
Creators: name: Шешнев Александр Сергеевич
Publisher: name: Недра Поволжья и Прикаспия
Year: 2020
Subjects: городской поверхностный сток
овражно-балочные системы
медь
цинк
Волгоградское водохранилище
Саратов
Вольск

description: основная цель исследований – определение сезонной динамики (весенний максимум и летне-осенний минимум стока) поступления загрязняющих веществ (цинк и медь) с водным стоком оврагов и балок с территории городов Саратова и Вольска в Волгоградское водохранилище. Учитывая, что водохранилище служит источником централизованного хозяйственно-питьевого водоснабжения и объектом рекреационной деятельности, необходима организация систем очистки поверхностного водного стока.
Exotic resonant level models in non-Abelian quantum Hall states coupled to quantum dots
Creators: name: Fiete, Gregory A.
name: Bishara, Waheb
name: Nayak, Chetan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper we study the coupling between a quantum dot and the edge of a non-Abelian fractional quantum Hall state. We assume the dot is small enough that its level spacing is large compared to both the temperature and the coupling to the spatially proximate bulk non-Abelian fractional quantum Hall state. We focus on the physics of level degeneracy with electron number on the dot. The physics of such a resonant level is governed by a $k$-channel Kondo model when the quantum Hall state is a Read-Rezayi state at filling fraction $ν=2+k/(k+2)$ or its particle-hole conjugate at $ν=2+2/(k+2)$. The $k$-channel Kondo model is channel symmetric even without fine tuning any couplings in the former state; in the latter, it is generically channel asymmetric. The two limits exhibit non-Fermi liquid and Fermi liquid properties, respectively, and therefore may be distinguished. By exploiting the mapping between the resonant level model and the multichannel Kondo model, we discuss the thermodynamic and transport properties of the system. In the special case of $k=2$, our results provide a novel venue to distinguish between the Pfaffian and anti-Pfaffian states at filling fraction $ν=5/2$. We present numerical estimates for realizing this scenario in experiment.
description: 18 pages, 2 figures. Clarified final discussion
Additional file 1 of Quantification of SNAP-25 with mass spectrometry and Simoa: a method comparison in Alzheimer’s disease
Creators: name: Nilsson, Johanna
name: Ashton, Nicholas J.
name: Benedet, Andrea L.
name: Montoliu-Gaya, Laia
name: Gobom, Johan
name: Pascoal, Tharick A.
name: Chamoun, Mira
name: Portelius, Erik
name: Jeromin, Andreas
name: Mendes, Muriel
name: Zetterberg, Henrik
name: Rosa-Neto, Pedro
name: Brinkmalm, Ann
name: Blennow, Kaj
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Supplementary tables.
Additional file 1 of Armigeres subalbatus is a potential vector for Zika virus but not dengue virus
Creators: name: Yang, Wenqiang
name: Zhao, Siyu
name: Xie, Yugu
name: Liu, Tong
name: Kong, Ling
name: Guo, Yijia
name: Xie, Zhensheng
name: Liu, Peiwen
name: Chen, Xiao-Guang
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 1: Fig. S1. The morphology of Ar. subalbatus isolated from Guangdong Province, China. (A) Female adult. (B) Male adult.
The conjugacy problem for the automorphism group of the random graph
Creators: name: Coskey, Samuel
name: Ellis, Paul
name: Schneider, Scott
Publisher: name: arXiv
Year: 2009
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E15, 03C15, 05C80, 08A35

description: We prove that the conjugacy problem for the automorphism group of the random graph is Borel complete, and discuss the analogous problem for some other countably categorical structures.
description: 7 pages
Strong and weak divergence in finite time of Euler's method for stochastic differential equations with non-globally Lipschitz continuous coefficients
Creators: name: Hutzenthaler, Martin
name: Jentzen, Arnulf
name: Kloeden, Peter E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Numerical Analysis (math.NA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 65C30

description: The stochastic Euler scheme is known to converge to the exact solution of a stochastic differential equation with globally Lipschitz continuous drift and diffusion coefficient. Recent results extend this convergence to coefficients which grow at most linearly. For superlinearly growing coefficients finite-time convergence in the strong mean square sense remained an open question according to [Higham, Mao & Stuart (2002); Strong convergence of Euler-type methods for nonlinear stochastic differential equations, SIAM J. Numer. Anal. 40, no. 3, 1041-1063]. In this article we answer this question to the negative and prove for a large class of stochastic differential equations with non-globally Lipschitz continuous coefficients that Euler's approximation converges neither in the strong mean square sense nor in the numerically weak sense to the exact solution at a finite time point. Even worse, the difference of the exact solution and of the numerical approximation at a finite time point diverges to infinity in the strong mean square sense and in the numerically weak sense.
description: Published at http://rspa.royalsocietypublishing.org/content/early/2010/12/08/rspa.2010.0348.full.html in the Proceedings of the Royal Society A
Isolation, and characterization of a bacteriophage active against pseudomonas acidovorans
Creators: name: Kropinski, Andrew Maitland Boleslaw
Publisher: name: University of British Columbia
Year: 2011

description: A phage was isolated from sewage which was active against the non-fluorescent Pseudomonad, P. acidovorans. It was given the designation ∅W-14. This is the first phage reported to be active against P. acidovorans. ∅W-14 was larger than previously reported Pseudomonas phages. It had an icosahedral head some 90 m in diameter and a contractile tail 140 mµ long and 20 mµ in diameter. The phage tended to form large aggregates. ∅W-14 formed haloed plaques on three strains of the host organism, but mutated at a high frequency (4 - 9 x 10ˉ⁴ ) to a clear plaque type when grown on P. .acidovorans #14. The haloed plaque form was considered to be the wild type and was given the designation ∅W-14a+. The clear plaque mutant appeared stable and was given the designation ∅W-14a. Adsorption of ∅W-14a+ was biphasic, with 35% of the phage population having a decreased adsorption capacity. The K value was 1.9 x 10ˉ⁹ ml/min. More normal kinetics were observed with ∅W-14a and with ∅W-14a+ in low-salt broth. The K value for ∅W-14a was 4.2 x IOˉ⁹. The burst size for ∅W-14a+ obtained from one-step growth experiments was 300, with a latent period of 67 minutes. ∅W-14a had a 50% higher burst size but the same latent period. The average burst size was markedly affected by the physiological age of the bacterial culture, and by the multiplicity of infection. Sensitivity of the phage to heat, pH, sonication and ultraviolet light was investigated. At least 70% of the lethal effects of UV irradiation could be reversed by photoreactivation. Thermal inactivation kinetics of ∅W-14a+ in broth were biphasic at 55 C and 60 C, the ΔH* being 75,700 calories/mole. ∅W-14a appeared to be more thermo-labile. Nucleic acid isolated from ∅W-14a+ was double-stranded DNA. There was a significant discrepancy between the moles % GC calculated from buoyant density determinations (1.666 g/cc³ -6% GC) and Tm determinations (98.4 C - 71.9% GC). The DNA was unusual also in that it yielded five bases upon hydrolysis. The fifth base was not one of those commonly found in DNA. It has not been identified. The base composition of the DNA as determined by chromatographic separation and quantitation of the bases was: Adenine, 21.8 moles %; Guanine, 28.2 moles %; Thymine, 11.1 moles %; Cytosine, 26.6 moles %; Unknown, 12.3 moles %; based upon the relationship: [ A + G ](over) [ T + C + Unknown ]=1