cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Patterned Random Matrices: deviations from universality
Creators: name: Ali, Md. Sabir
name: Srivastava, Shashi C. L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the level spacing distribution for three ensembles of real symmetric matrices having additional structural constraint to reduce the number of independent entries to only $ (n+1)/2 $ in contrast to the $ n(n+1)/2 $ for a real symmetric matrix of size $ n \times n $. We derive all the results analytically exactly for the $ 3\times 3 $ matrices and show that spacing distribution display a range of behaviour based on the structural constraint. The spacing distribution of the ensemble of reverse circulant matrices with additional zeros is found to fall slower than exponential for larger spacing while that of symmetric circulant matrices has poisson spacings. The palindromic symmetric toeplitz matrices on the other hand show level repulsion but the distribution is significantly different from Wigner. The behaviour of spacings for all the three ensembles clearly show the departure from universal result of Wigner distribution for real symmetric matrices. The deviation from universality continues in large $ n $ cases as well, which we study numerically.
Библиометрические Показатели журнала «Самарская Лука: проблемы глобальной и региональной экологии» за 2008-2016 гг
Creators: name: Бакиев А.Г.
name: Сенатор С.А.
name: Саксонов С.В.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: НАУЧНЫЙ ЖУРНАЛ «САМАРСКАЯ ЛУКА: ПРОБЛЕМЫ РЕГИОНАЛЬНОЙ И ГЛОБАЛЬНОЙ ЭКОЛОГИИ»
БИБЛИОМЕТРИЧЕСКИЕ ПОКАЗАТЕЛИ

description: В статье приведен анализ основных библиометрических показателей журнала «Самарская Лука: проблемы региональной и глобальной экологии» за 2008-2016 гг. Приведенные данные свидетельствуют о поступательном развитии журнала и его соответствии современным требованиям к научным периодическим изданиям.
Resolvents of elliptic cone operators
Creators: name: Gil, Juan B.
name: Krainer, Thomas
name: Mendoza, Gerardo A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 58J50

description: We prove the existence of sectors of minimal growth for general closed extensions of elliptic cone operators under natural ellipticity conditions. This is achieved by the construction of a suitable parametrix and reduction to the boundary. Special attention is devoted to the clarification of the analytic structure of the resolvent.
description: 46 pages, submitted for publication
Resonant tunneling of fluctuation Cooper pairs
Creators: name: Galda, Alexey
name: Mel'nikov, A. S.
name: Vinokur, V. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconducting fluctuations have proved to be an irreplaceable source of information about microscopic and macroscopic material parameters that could be inferred from the experiment. According to common wisdom, the effect of thermodynamic fluctuations in the vicinity of the superconducting transition temperature, Tc, is to round off all of the sharp corners and discontinuities, which otherwise would have been expected to occur at Tc. Here we report the current spikes due to radiation-induced resonant tunneling of fluctuation Cooper pairs between two superconductors which grow even sharper and more pronounced upon approach to Tc. This striking effect offers an unprecedented tool for direct measurements of fluctuation Cooper pairs' lifetime, which is key to our understanding of the fluctuation regime. Our finding marks a radical departure from the conventional view of superconducting fluctuations as blurring and rounding phenomenon.
description: 6 pages, 5 figures
Geometry and spectra of closed extensions of elliptic cone operators
Creators: name: Gil, Juan B.
name: Krainer, Thomas
name: Mendoza, Gerardo A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 58J50

description: We study the geometry of the set of closed extensions of index 0 of an elliptic cone operator and its model operator in connection with the spectra of the extensions, and give a necessary and sufficient condition for the existence of rays of minimal growth for such operators.
description: 48 pages, revisited version to appear in Canadian Journal of Mathematics
Multi-time Lagrangian 1-forms for families of Bäcklund transformations. Relativistic Toda-type systems
Creators: name: Boll, Raphael
name: Petrera, Matteo
name: Suris, Yuri B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We establish the pluri-Lagrangian structure for families of Bäcklund transformations of relativistic Toda-type systems. The key idea is a novel embedding of these discrete-time (one-dimensional) systems into certain two-dimensional pluri-Lagrangian lattice systems. This embedding allows us to identify the corner equations (which are the main building blocks of the multi-time Euler-Lagrange equations) with local superposition formulae for Bäcklund transformations. These superposition formulae, in turn, are key ingredients necessary to understand and to prove commutativity of the multi-valued Bäcklund transformations. Furthermore, we discover a two-dimensional generalization of the spectrality property known for families of Bäcklund transformations. This result produces a family of local conservations laws for two-dimensional pluri-Lagrangian lattice systems, with densities being derivatives of the discrete 2-form with respect to the Bäcklund (spectral) parameter. Thus, a relation of the pluri-Lagrangian structure with more traditional integrability notions is established.
description: 25 pages
Resolvents of cone pseudodifferential operators, asymptotic expansions and applications
Creators: name: Gil, Juan B.
name: Loya, Paul A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Spectral Theory (math.SP)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: Primary 58J35, Secondary 58J40, 58J37, 58J20

description: We study the structure and asymptotic behavior of the resolvent of elliptic cone pseudodifferential operators acting on weighted Sobolev spaces over a compact manifold with boundary. We obtain an asymptotic expansion of the resolvent as the spectral parameter tends to infinity, and use it to derive corresponding heat trace and zeta function expansions as well as an analytic index formula.
description: 30 pages, 5 figures
On cyclic numbers and an extension of Midy's theorem
Creators: name: Gil, Juan B.
name: Weiner, Michael D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: General Mathematics (math.GM)
subject: FOS: Mathematics

description: In this note we consider fractions of the form 1/m and their floating-point representation in various arithmetic bases. For instance, what is 1/7 in base 2005? And, what about 1/4? We give a simple algorithm to answer these questions. In addition, we discuss an extension of Midy's theorem whose proof relies on elementary modular arithmetic.
description: 6 pages, aimed at undergraduate students
Additional file 1 of Systems thinking methods: a worked example of supporting emergency medical services decision-makers to prioritize and contextually analyse potential interventions and their implementation
Creators: name: Rehbock, Cassandra
name: Krafft, Thomas
name: Sommer, Anja
name: Beumer, Carijn
name: Beckers, Stefan K.
name: Thate, Stefan
name: Kaminski, Jörn
name: Ziemann, Alexandra
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 1. The causal loop diagram.
Избранные очерки географической экологии: часть I. базовый ландшафтно-экологический анализ
Creators: name: Коломыц Э.Г.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: ГЕОГРАФИЧЕСКАЯ ЭКОЛОГИЯ
ЭМПИРИКО-СТАТИСТИЧЕСКОЕ МОДЕЛИРОВАНИЕ
ЛАНДШАФТНО-ЗОНАЛЬНЫЕ СИСТЕМЫ
ТОПОГЕОСИСТЕМЫ
БИОЛОГИЧЕСКИЙ КРУГОВОРОТ
ГЛОБАЛЬНЫЕ ИЗМЕНЕНИЯ КЛИМАТА
ПРОГНОЗНЫЕ МОДЕЛИ

description: В очерках представлены разработанные автором в разные годы эмпирико-статистические модели, вскрывающие причинные механизмы структурно-функциональной организации и климатогенной динамики лесных экосистем на примере как равнинных, так и горных территорий. В созданных моделях географическая экология приобретает эффективный формализованный инструмент анализа и прогноза, который использует методы дискретной математики для обработки и обобщения массового эмпирического материала, получаемого при полевых и камеральных ландшафтных исследованиях. В очерках последовательно излагаются: 1) принципы и методы дискретного эмпирико-статистического моделирования пространственной организации разнопорядковых гео(эко-)систем; 2) концепция о географических экотонах как о первоочередных объектах изучения воздействия человека на природу; 3) численные методы регионального и локального ландшафтно-экологического прогнозирования; 4) региональная палео-прогнозная концепция, рассматривающая прогнозируемые эколого-географические сценарии и их палеогеографические аналоги как единую региональную систему глобальных изменений природной среды; 5) топо-экологическая прогнозная концепция «Глобальные изменения на локальном уровне» как научно-методическая основа геосистемного мониторинга; 6) применение методов ландшафтной экологии в оценках биологического круговорота и углеродного баланса лесных экосистем при изменениях климата; 7) методы исчисления функционалной устойчивости локальных и зонально-региональных лесных сообществ на основе дискретных параметров биологического круговорота.
Embedding generation for text classification of Brazilian Portuguese user reviews: from bag-of-words to transformers
Creators: name: Souza, Frederico Dias
name: Filho, João Baptista de Oliveira e Souza
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Text classification is a natural language processing (NLP) task relevant to many commercial applications, like e-commerce and customer service. Naturally, classifying such excerpts accurately often represents a challenge, due to intrinsic language aspects, like irony and nuance. To accomplish this task, one must provide a robust numerical representation for documents, a process known as embedding. Embedding represents a key NLP field nowadays, having faced a significant advance in the last decade, especially after the introduction of the word-to-vector concept and the popularization of Deep Learning models for solving NLP tasks, including Convolutional Neural Networks (CNNs), Recurrent Neural Networks (RNNs), and Transformer-based Language Models (TLMs). Despite the impressive achievements in this field, the literature coverage regarding generating embeddings for Brazilian Portuguese texts is scarce, especially when considering commercial user reviews. Therefore, this work aims to provide a comprehensive experimental study of embedding approaches targeting a binary sentiment classification of user reviews in Brazilian Portuguese. This study includes from classical (Bag-of-Words) to state-of-the-art (Transformer-based) NLP models. The methods are evaluated with five open-source databases with pre-defined data partitions made available in an open digital repository to encourage reproducibility. The Fine-tuned TLMs achieved the best results for all cases, being followed by the Feature-based TLM, LSTM, and CNN, with alternate ranks, depending on the database under analysis.
description: 14 pages, 6 figures. Published at Springer Neural Computing and Applications journal
Additional file 2 of Systems thinking methods: a worked example of supporting emergency medical services decision-makers to prioritize and contextually analyse potential interventions and their implementation
Creators: name: Rehbock, Cassandra
name: Krafft, Thomas
name: Sommer, Anja
name: Beumer, Carijn
name: Beckers, Stefan K.
name: Thate, Stefan
name: Kaminski, Jörn
name: Ziemann, Alexandra
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 2. Variable descriptions and subsystems.
Second look at the spread of epidemics on networks
Creators: name: Kenah, Eben
name: Robins, James M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In an important paper, M.E.J. Newman claimed that a general network-based stochastic Susceptible-Infectious-Removed (SIR) epidemic model is isomorphic to a bond percolation model, where the bonds are the edges of the contact network and the bond occupation probability is equal to the marginal probability of transmission from an infected node to a susceptible neighbor. In this paper, we show that this isomorphism is incorrect and define a semi-directed random network we call the epidemic percolation network that is exactly isomorphic to the SIR epidemic model in any finite population. In the limit of a large population, (i) the distribution of (self-limited) outbreak sizes is identical to the size distribution of (small) out-components, (ii) the epidemic threshold corresponds to the phase transition where a giant strongly-connected component appears, (iii) the probability of a large epidemic is equal to the probability that an initial infection occurs in the giant in-component, and (iv) the relative final size of an epidemic is equal to the proportion of the network contained in the giant out-component. For the SIR model considered by Newman, we show that the epidemic percolation network predicts the same mean outbreak size below the epidemic threshold, the same epidemic threshold, and the same final size of an epidemic as the bond percolation model. However, the bond percolation model fails to predict the correct outbreak size distribution and probability of an epidemic when there is a nondegenerate infectious period distribution. We confirm our findings by comparing predictions from percolation networks and bond percolation models to the results of simulations. In an appendix, we show that an isomorphism to an epidemic percolation network can be defined for any time-homogeneous stochastic SIR model.
description: 29 pages, 5 figures
Network-based analysis of stochastic SIR epidemic models with random and proportionate mixing
Creators: name: Kenah, Eben
name: Robins, James M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, we outline the theory of epidemic percolation networks and their use in the analysis of stochastic SIR epidemic models on undirected contact networks. We then show how the same theory can be used to analyze stochastic SIR models with random and proportionate mixing. The epidemic percolation networks for these models are purely directed because undirected edges disappear in the limit of a large population. In a series of simulations, we show that epidemic percolation networks accurately predict the mean outbreak size and probability and final size of an epidemic for a variety of epidemic models in homogeneous and heterogeneous populations. Finally, we show that epidemic percolation networks can be used to re-derive classical results from several different areas of infectious disease epidemiology. In an appendix, we show that an epidemic percolation network can be defined for any time-homogeneous stochastic SIR model in a closed population and prove that the distribution of outbreak sizes given the infection of any given node in the SIR model is identical to the distribution of its out-component sizes in the corresponding probability space of epidemic percolation networks. We conclude that the theory of percolation on semi-directed networks provides a very general framework for the analysis of stochastic SIR models in closed populations.
description: 40 pages, 9 figures
Дендроиндикация климатогенной динамики продуктивности лесных экосистем на Тихоокеанском мегаэкотоне северной Евразии
Creators: name: Коломыц Э.Г.
name: Петренко П.С.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: ВУЛКАНИЧЕСКИЕ ОСТРОВА
МАТЕРИКОВАЯ ОКРАИНА
БОРЕАЛЬНЫЕ ЛЕСНЫЕ ЭКОСИСТЕМЫ
ДЕНДРОХРОНОЛОГИЧЕСКИЕ РЯДЫ
ЦИРКУЛЯЦИОННЫЕ ЭПОХИ
КЛИМАТИЧЕСКИЕ КОЛЕБАНИЯ

description: Анализом дендрохроноклиматических рядов по кернам модельных деревьев уствновлены определенные связи динамики продуктивности островных и окраинно-материковых лесов со сменой основных циркуляционных эпох на Тихоокеанском мегаэкотоне Северной Евразии. Выявленные тенденции роста, либо, наоборот, снижения продуктивности бореальных лесов наиболее конформны атмосферным процессам в окраинно-материковом субпацифическом секторе мегаэкотона. В неопацифическом же островодужном секторе такая однозначная связь отсутствует. Проведенный сравнительный анализ дендрохроноклиматических рядов двух секторов Северо-Западной Пацифики показал также отсутствие полной синхронности этих рядов как по климатическим параметрам, так и по продуктивности лесов.
RNA preservation & RNA extraction protocol suitable for field collection of coral samples
Creators: name: Voolstra, Christian R
name: Perna, Gabriela
name: Alderdice, Rachel
Publisher: name: Zenodo
Year: 2022
Subjects: coral
RNA isolation
RNA storage
field work
sample preservation

description: The ability to collect samples suitable for RNA extraction in remote field settings is typically hampered by the need for immediate processing or freezing of samples in liquid nitrogen for preservation of nucleic acid integrity. To this end, a range of RNA preservation buffers are available, compatible with ambient temperature transport and subsequent RNA extraction. Here we tested two commonly available RNA storage buffers, RNAlater from Thermo Fisher Scientific and DNA/RNA Shield from Zymo Research, with subsequent RNA extraction using the RNeasy Mini Kit from Qiagen. We assessed three common coral genera (Acropora, Pocillopora, Porites) reported to yield different levels of RNA quality and quantity, partially due to varying levels of mucus that co-purifies with RNA. All samples were collected in the field and preserved at site (on the boat) with storage at ambient temperature, followed by +4°C and -20°C storage, before subsequent RNA extraction. We found DNA/RNA Shield in combination with the RNeasy Mini Kit to yield non-degraded high quality total RNA. The lytic activity of the DNA/RNA Shield buffer facilitates the separation of the coral tissue from the skeleton. At the same time, minimizing the amount of storage buffer is important to obtain sufficiently concentrated RNA for direct use in downstream applications (e.g., RNA-Seq). In summary, we developed a protocol for coral RNA preservation and RNA extraction suitable for application in remote field settings that yield sufficiently concentrated, high quality RNA for direct use in downstream molecular applications.
description: Differences to Version 1.1: (i) Added alternative protocol to use supernatant of homogenized spun down coral tissue for difficult-to-extract species. (ii) Added second transfer step of lysate & EtOH to RNeasy spin column to increase RNA yield.
Felskau, C.-F.: Agnes von Böhmen und die Klosteranlage der Klarissen und Franziskaner in Prag
Creators: name: Valasek, Emil
Publisher: name: Forum Katholische Theologie
Year: 1970

description: Forum Katholische Theologie, Bd. 28 Nr. 4 (2012): Forum Katholische Theologie, Band 28, Heft 4
RNA preservation & RNA extraction protocol suitable for field collection of coral samples
Creators: name: Voolstra, Christian R
name: Perna, Gabriela
Publisher: name: Zenodo
Year: 2022
Subjects: coral
RNA isolation
RNA storage
field work
sample preservation

description: The ability to collect samples suitable for RNA extraction in remote field settings is typically hampered by the need for immediate processing or freezing of samples in liquid nitrogen for preservation of nucleic acid integrity. To this end, a range of RNA preservation buffers are available, compatible with ambient temperature transport and subsequent RNA extraction. Here we tested two commonly available RNA storage buffers, RNAlater from Thermo Fisher Scientific and DNA/RNA Shield from Zymo Research, with subsequent RNA extraction using the RNeasy Mini Kit from Qiagen. We assessed three common coral genera (Acropora, Pocillopora, Porites) reported to yield different levels of RNA quality and quantity, partially due to varying levels of mucus that co-purifies with RNA. All samples were collected in the field and preserved at site (on the boat) with storage at ambient temperature, followed by +4°C and -20°C storage, before subsequent RNA extraction. We found DNA/RNA Shield in combination with the RNeasy Mini Kit to yield non-degraded high quality total RNA. The lytic activity of the DNA/RNA Shield buffer facilitates the separation of the coral tissue from the skeleton. At the same time, minimizing the amount of storage buffer is important to obtain sufficiently concentrated RNA for direct use in downstream applications (e.g., RNA-Seq). In summary, we developed a protocol for coral RNA preservation and RNA extraction suitable for application in remote field settings that yield sufficiently concentrated, high quality RNA for direct use in downstream molecular applications.
Additional file 3 of Systems thinking methods: a worked example of supporting emergency medical services decision-makers to prioritize and contextually analyse potential interventions and their implementation
Creators: name: Rehbock, Cassandra
name: Krafft, Thomas
name: Sommer, Anja
name: Beumer, Carijn
name: Beckers, Stefan K.
name: Thate, Stefan
name: Kaminski, Jörn
name: Ziemann, Alexandra
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 3. Cross-impact matrix.
Раритетные виды Сызрано-Терешкинского физико-географического района Среднего Поволжья
Creators: name: Винюсева Г.В.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: ОХРАНЯЕМЫЕ ВИДЫ
ФЛОРА
ООПТ
СЫЗРАНО-ТЕРЕШКИНСКИЙ РАЙОН
СРЕДНЕЕ ПОВОЛЖЬЕ
УЛЬЯНОВСКАЯ ОБЛАСТЬ

description: Сызрано-Терешкинский ландшафтный район Среднего Поволжья один из богатейших по количеству раритетных видов флоры здесь встречается 120 видов растений включенных в Красную книгу Ульяновской (2015) и Саратовской областей (2006) (13% от общего числа видов выявленных во флоре) из них в новых пунктах обнаружено 33 вида. По биологическому разнообразию охраняемых видов флоры Сызрано-Терешкинский район не уступает и даже превосходит, к примеру, Хвалынский физико-географический район Нижнего Поволжья, где выявлено 104 раритетных вида (10,6% от общего числа видов). В данной работе проведена инвентаризация раритетных видов в Сызрано-Терешкинском естественно-географическом выделе, что упорядочивает флористическую информацию.
Explaining the Past Through Artefacts: 1998 Historical Exhibitions in Ireland and Northern Ireland
Creators: name: Cauvin, Thomas
Publisher: name: T. Cauvin, Explaining the Past Through Artefacts: 1998 Historical Exhibitions in Ireland and Northern Ireland, «Revue belge de philologie et d'histoire», 87, 2009, n. 3-4, pp. 743-758
Year: 2009
Subjects: Objects
Collection
Museum
Material culture

description: The purpose of this article is to examine how exhibitions can help historians to study interpretations and constructions of the past. The article focuses on historical exhibitions dealing with the 1798 Rebellion and held in 1998 in two national museums of Ireland, the National Museum of Ireland (NMI) in Dublin and the Ulster Museum (UM) in Belfast. The two exhibitions examined are Fellowship of Freedom : The United Irishmen and the Rebellion of 1798 and Up in Arms: The 1798 Rebellion in Ireland, a bicentenary exhibition held at the NMI and UM respectively. The 1998 exhibitions were particularly remarkable since they were direct responses to previous interpretations of the Irish Conflict and aimed at producing new official narratives of the past. Images may be analyzed as historical sources for the topics they deal with, for the context of their production, but also for the context of their display, since interpretation of images contributes to the constant construction of cultural heritage. In order to analyze the reinterpretations of the past, one meaningful approach, then, is to focus on the relationships between images and texts, or in other words, how images were interpreted and organized to produce narratives of the past. First, I compare how the 1798 Rebellion was defined through images, especially the covers of published materials, and to what extent scenes of violence were included in the visual representations of 1798. Second, I intend to clarify how the different interpretations and arrangements of images reveal the larger constructions of the past.
Материалы к флоре бассейна реки Уса (среднее Поволжье)
Creators: name: Сенатор С.А.
name: Васюков В.М.
name: Саксонов С.В.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: СОСУДИСТЫЕ РАСТЕНИЯ
БАССЕЙН РЕКИ УСА
СРЕДНЕЕ ПОВОЛЖЬЕ

description: В результате исследований флоры бассейна реки Уса (Самарская и Ульяновская области) зарегистрировано 574 вида сосудистых растений, в том числе занесенные в Красную книгу Самарской области Astragalus sulcatus L., Cicuta virosa L., Globularia punctata Lapeyr., Hippochaete ramosissima (Desf.) Borner, Gypsophila volgensis Krasnova, Matteuccia struthiopteris (L.) Tod., Neoholubia pubescens (Huds.) Tzvelev, Nymphaea candida J. et C. Presl, Ostericum palustre Besser, Plantago cornuti Gouan, P. salsa Pall., Polygala cretacea Kotov, Thymus dubjanskyi Klokov et Des.-Shost.
A dynamic gradient approach to Pareto optimization with nonsmooth convex objective functions
Creators: name: Attouch, Hedy
name: Garrigos, Guillaume
name: Goudou, Xavier
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In a general Hilbert framework, we consider continuous gradient-like dynamical systems for constrained multiobjective optimization involving non-smooth convex objective functions. Our approach is in the line of a previous work where was considered the case of convex di erentiable objective functions. Based on the Yosida regularization of the subdi erential operators involved in the system, we obtain the existence of strong global trajectories. We prove a descent property for each objective function, and the convergence of trajectories to weak Pareto minima. This approach provides a dynamical endogenous weighting of the objective functions. Applications are given to cooperative games, inverse problems, and numerical multiobjective optimization.
Особенности мезоструктуры, пигментного и липидного состава представителей сем. Onagraceae
Creators: name: Богданова Е.С.
name: Розенцвет О.А.
name: Нестеров В.Н.
name: Зубова Светлана Николаевна
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: EPILOBIUM
OENOTHERA
ЛИПИДЫ
МЕЗОСТРУКТУРА
ПИГМЕНТЫ

description: Исследованы особенности мезоструктуры, пигментного и липидного состава представителей родов Oenothera и Epilobium сем. Onagraceae. Высокие значения фотосинтетических пигментов, гликолипидов и жирных кислот отмечали в листьях растений E. adenocaulon и E. hirsutum. Результаты кластерного анализа показали, что мезоструктура фотосинтетического аппарата определяется видовыми особенностями, а биохимические показатели имеют межвидовое сходство.
RNA preservation & RNA extraction protocol suitable for field collection of coral samples
Creators: name: Voolstra, Christian R
name: Perna, Gabriela
Publisher: name: Zenodo
Year: 2022
Subjects: coral
RNA isolation
RNA storage
field work
sample preservation

description: The ability to collect samples suitable for RNA extraction in remote field settings is typically hampered by the need for immediate processing or freezing of samples in liquid nitrogen for preservation of nucleic acid integrity. To this end, a range of RNA preservation buffers are available, compatible with ambient temperature transport and subsequent RNA extraction. Here we tested two commonly available RNA storage buffers, RNAlater from Thermo Fisher Scientific and DNA/RNA Shield from Zymo Research, with subsequent RNA extraction using the RNeasy Mini Kit from Qiagen. We assessed three common coral genera (Acropora, Pocillopora, Porites) reported to yield different levels of RNA quality and quantity, partially due to varying levels of mucus that co-purifies with RNA. All samples were collected in the field and preserved at site (on the boat) with storage at ambient temperature, followed by +4°C and -20°C storage, before subsequent RNA extraction. We found DNA/RNA Shield in combination with the RNeasy Mini Kit to yield non-degraded high quality total RNA. The lytic activity of the DNA/RNA Shield buffer facilitates the separation of the coral tissue from the skeleton. At the same time, minimizing the amount of storage buffer is important to obtain sufficiently concentrated RNA for direct use in downstream applications (e.g., RNA-Seq). In summary, we developed a protocol for coral RNA preservation and RNA extraction suitable for application in remote field settings that yield sufficiently concentrated, high quality RNA for direct use in downstream molecular applications.
description: Differences to Version 1.0: (i) Figure S3 was added; (ii) protocol: 300 µL of RNeasy Mini Kit RLT buffer is added to tissue slurry before centrifugation
О лесообразующей роли темнохвойных пород в районах широколиственно-темнохвойных и горнотаежных темнохвойных лесов Южного Урала
Creators: name: Горичев Ю.П.
name: Давыдычев А.Н.
name: Кулагин А.Ю.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: ЮЖНЫЙ УРАЛ
ЛЕСООБРАЗОВАТЕЛЬНЫЙ ПРОЦЕСС
ШИРОКОЛИСТВЕННО-ТЕМНОХВОЙНЫЕ ЛЕСА
ТЕМНОХВОЙНЫЕ ПОРОДЫ
ЕЛЬ СИБИРСКАЯ
ПИХТА СИБИРСКАЯ

description: В статье на основе анализа и обобщения результатов исследований сделаны выводы об участии темнохвойных пород ели сибирской и пихты сибирской в лесообразовательном процессе в районах широколиственно-темнохвойных и темнохвойных лесов Южного Урала
Dynamical density functional theory for the diffusion of injected Brownian particles
Creators: name: Löwen, H.
name: Heinen, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: While the theory of diffusion of a single Brownian particle in confined geometries is well-established by now, we discuss here the theoretical framework necessary to generalize the theory of diffusion to dense suspensions of strongly interacting Brownian particles. Dynamical density functional theory (DDFT) for classical Brownian particles represents an ideal tool for this purpose. After outlining the basic ingredients to DDFT we show that it can be readily applied to flowing suspensions with time-dependent particle sources. Particle interactions lead to considerable layering in the mean density profiles, a feature that is absent in the trivial case of noninteracting, freely diffusing particles. If the particle injection rate varies periodically in time with a suitable frequency, a resonance in the layering of the mean particle density profile is predicted.
Функциональные характеристики мейобентоса в двух соленых реках Приэльтонья в 2017 году
Creators: name: Гусаков В.А.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: МЕЙОБЕНТОС
ПРОДУКЦИЯ
СОЛЕНЫЕ РЕКИ
БАССЕЙН ОЗ. ЭЛЬТОН

description: Впервые приводятся данные продукционных характеристик сообществ мейобентоса в устьевых участках двух соленых рек бассейна гипергалинного озера Эльтон. Установлено, что в летний период (август) среднесуточная продукция мейобентоса в мезогалинной р. Хара составляет 0,471 сутки-1, сухой вес, а в полигалинной р. Чернавка 0,932 г/м2 сутки-1, сухой вес. Суммарная продукция сообществ формируется за счет развития двух видов Entomostraca: Cletocamptus retrogressus в р. Хара и Cyprideis torosa в р. Чернавка, составляющих 80-93% от всей суточной продукции мейобентоса. Рассчитанные величины продукции значительно превосходят таковые, известные для пресноводных водоемов.
Экологическое состояние лотических систем: комплексные критерии оценки
Creators: name: Абросимова Э.В.
name: Розенберг А.Г.
name: Шитиков В.К.
name: Зинченко Т.Д.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: КАЧЕСТВО ВОДЫ
ИНТЕГРАЛЬНЫЕ ПОКАЗАТЕЛИ
МАЛЫЕ РЕКИ
ВОЛЖСКИЙ БАССЕЙН

description: Представлены результаты анализа некоторых комплексных показателей оценки качества поверхностных вод, используемых обычно при проведении мониторинговых исследований водотоков. На примере данных многолетних исследований экологического состояния рек Волжского бассейна показаны некоторые оценочные способы получения информативности частных показателей и процедуры их отбора (экспертный и статистический подходы) при построении интегральных индексов и критериев качества воды малых рек разного типа и уровня антропогенной нагрузки.
Hydrodynamic approach to the Synge gas
Creators: name: Mengual, Salvador
name: Ferrando, Joan Josep
name: Sáez, Juan Antonio
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The necessary and sufficient conditions for a perfect energy tensor to describe the energy evolutions of a monoatomic relativistic Synge gas are obtained. Then, a Rainich-like theory for the Einstein-Synge solutions can be constructed. Equations of state approximating that of a Synge gas at low or at high temperatures, or in the entire domain of applicability, are analyzed from a hydrodynamic point of view.
description: 11 pages, 1 figure
Static quark-antiquark potential in the quark-gluon plasma from lattice QCD
Creators: name: Burnier, Yannis
name: Kaczmarek, Olaf
name: Rothkopf, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a state-of-the-art determination of the complex valued static quark-antiquark potential at phenomenologically relevant temperatures around the deconfinement phase transition. Its values are obtained from non-perturbative lattice QCD simulations using spectral functions extracted via a novel Bayesian inference prescription. We find that the real part, both in a gluonic medium as well as in realistic QCD with light $u$, $d$ and $s$ quarks, lies close to the color singlet free energies in Coulomb gauge and shows Debye screening above the (pseudo) critical temperature $T_c$. The imaginary part is estimated in the gluonic medium, where we find that it is of the same order of magnitude as in hard-thermal loop resummed perturbation theory in the deconfined phase.
description: 5 pages, 3 figures
К 10-летию со дня организации Средне-Волжского комплексного биосферного резервата
Creators: name: Сидякина Л.В.
name: Рощевский Ю.К.
name: Конева Н.В.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: СРЕДНЕ-ВОЛЖСКИЙ КОМПЛЕКСНЫЙ БИОСФЕРНЫЙ РЕЗЕРВАТ
РОССИЙСКОЕ ЗАКОНОДАТЕЛЬСТВО ОБ ОСОБО ОХРАНЯЕМЫХ ПРИРОДНЫХ ТЕРРИТОРИЯХ
ПЕРСПЕКТИВЫ РАЗВИТИЯ
САМАРСКАЯ ОБЛАСТЬ

description: Статья посвящена 10-летию со дня организации Средне-Волжского комплексного биосферного резервата (Самарская область). Кратко описана история его создания. Рассмотрен вопрос о необходимости внесения дополнения в закон Российской Федерации «Об особо охраняемых природных территориях» в связи с созданием новой международной формы территориальной охраны природы. Намечены дальнейшие шаги по развитию резервата.
Additional file 4 of Systems thinking methods: a worked example of supporting emergency medical services decision-makers to prioritize and contextually analyse potential interventions and their implementation
Creators: name: Rehbock, Cassandra
name: Krafft, Thomas
name: Sommer, Anja
name: Beumer, Carijn
name: Beckers, Stefan K.
name: Thate, Stefan
name: Kaminski, Jörn
name: Ziemann, Alexandra
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 4. Cross-time matrix.
title: Στατική ανάλυση θερμοκηπιακών κατασκευών
titleType: AlternativeTitle
Creators: name: Ντόβα, Ευμορφία
Publisher: name: University of Thessaly
Year: 2010
Subjects: subject: ΘΕΡΜΟΚΗΠΙΑ
subject: ΘΕΡΜΟΚΗΠΙΑ -- ΣΧΕΔΙΑΣΜΟΣ ΚΑΙ ΚΑΤΑΣΚΕΥΗ
subject: ΧΑΛΥΒΑΣ -- ΚΑΤΑΣΚΕΥΕΣ

description: Σημείωση: διατίθεται συμπληρωματικό υλικό σε ξεχωριστό αρχείο.
Deformation spines satisfy an exponential isoperimetric inequality
Creators: name: Lowenstein, Alexander Peter
Publisher: name: No Publisher Supplied
Year: 2024

description: We prove that the barycentric spine of bounded complexity for a deformation space, in the sense of Max Forester, satisfies an exponential isoperimetric inequality. The proof gives a new application to combing rectangles once used to prove that the free splitting complex is hyperbolic. We also give new insights into the geometry and dynamics of self equivariant foldable maps as an unexpected area of study necessary to finish the proof.
Emergent Gravity requires (kinematic) non-locality
Creators: name: Marolf, Donald
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This work refines arguments forbidding non-linear dynamical gravity from appearing in the low energy effective description of field theories with local kinematics, even for those with instantaneous long-range interactions. Specifically, we note that gravitational theories with universal coupling to energy -- an intrinsically non-linear phenomenon -- are characterized by Hamiltonians that are pure boundary terms on shell. In order for this to be the low energy effective description of a field theory with local kinematics, all bulk dynamics must be frozen and thus irrelevant to the construction. The result applies to theories defined either on a lattice or in the continuum, and requires neither Lorentz-invariance nor translation-invariance.
description: 7 pages + title page & references
Duns Scotus, J.: Freiheit, Tugenden und Naturgesetz (hrsg. von T. Hofmann)
Creators: name: Chabada, Michal
Publisher: name: Forum Katholische Theologie
Year: 1970

description: Forum Katholische Theologie, Bd. 28 Nr. 4 (2012): Forum Katholische Theologie, Band 28, Heft 4
Роль Тольяттинской флористической школы, в изучении особо охраняемых природных территорий
Creators: name: Конева Н.В.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: ОСОБО ОХРАНЯЕМЫЕ ПРИРОДНЫЕ ТЕРРИТОРИИ
САМАРСКАЯ ОБЛАСТЬ
УЛЬЯНОВСКАЯ ОБЛАСТЬ
ФЛОРИСТИЧЕСКАЯ ИЗУЧЕННОСТЬ

description: В статье показана современная флористическая изученность особо охраняемых природных территорий Ульяновской и Самарской областей.
Measuring the Dust Masses of Protoplanetary Disks in Lupus with ALMA: Evidence that Disks can be Optically Thick at 3 mm
Creators: name: Xin, Z.
name: Espaillat, C. C.
name: Rilinger, A. M.
name: Ribas, A.
name: Macias, E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Accurate disk mass measurements are necessary to constrain disk evolution and the timescale of planet formation, but such measurements are difficult to make and are very dependent on assumptions. Here we look at the assumption that the disk is optically thin at radio wavelengths and the effect of this assumption on measurements of disk dust mass. We model the optical to radio spectral energy distributions (SEDs) of 41 protoplanetary disks located in the young (~1-3 Myr old) Lupus star-forming region, including 0.89 mm, 1.33 mm, and 3 mm flux densities when available. We measure disk dust masses that are ~1.5-6 times higher than when using the commonly adopted disk dust mass equation under the assumption of optically thin emission in the (sub-)millimeter. The cause of this discrepancy is that most disks are optically thick at millimeter wavelengths, even up to 3 mm, demonstrating that observations at longer wavelengths are needed to trace the fully optically thin emission of disks.
description: accepted to ApJ
title: Μοντελοποίηση αστικών κενών
titleType: AlternativeTitle
Creators: name: Καρανάσου, Ευσταθία
Publisher: name: University of Thessaly
Year: 2010
Subjects: subject: ΑΣΤΙΚΗ ΑΝΑΠΤΥΞΗ -- ΕΛΛΑΔΑ -- ΒΟΛΟΣ
subject: ΠΟΛΕΙΣ ΚΑΙ ΚΩΜΟΠΟΛΕΙΣ -- ΑΝΑΠΤΥΞΗ -- ΕΛΛΑΔΑ -- ΒΟΛΟΣ
subject: ΠΟΛΕΙΣ ΚΑΙ ΚΩΜΟΠΟΛΕΙΣ -- ΓΕΩΓΡΑΦΙΚΑ ΣΥΣΤΗΜΑΤΑ ΠΛΗΡΟΦΟΡΙΩΝ

description: Σημείωση: διατίθεται συμπληρωματικό υλικό σε ξεχωριστό αρχείο.
Additional file 5 of Systems thinking methods: a worked example of supporting emergency medical services decision-makers to prioritize and contextually analyse potential interventions and their implementation
Creators: name: Rehbock, Cassandra
name: Krafft, Thomas
name: Sommer, Anja
name: Beumer, Carijn
name: Beckers, Stefan K.
name: Thate, Stefan
name: Kaminski, Jörn
name: Ziemann, Alexandra
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 5. Identification of interventions, their implementation process and their effects.
Новая ассоциация степной растительности из Жигулевских гор
Creators: name: Лысенко Т.М.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: СТЕПНАЯ РАСТИТЕЛЬНОСТЬ
КАМЕНИСТЫЕ СТЕПИ
FESTUCO-BROMETEA
ЖИГУЛЕВСКИЕ ГОРЫ

description: Приведены сведения об описанной в Жигулевских горах новой ассоциации степной растительности, даны ее диагностические виды, номенклатурный тип, описание состава, структуры и экологии входящих в нее сообществ.
Tsallis information dimension of complex networks
Creators: name: Zhang, Qi
name: Li, Meizhu
name: Deng, Yong
name: Mahadevan, Sankaran
Publisher: name: arXiv
Year: 2014
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The fractal and self-similarity properties are revealed in many complex networks. In order to show the influence of different part in the complex networks to the information dimension, we have proposed a new information dimension based on Tsallis entropy namely Tsallis information dimension. The Tsallis information dimension can show the fractal property from different perspective by set different value of q.
description: 14 pages, 4 figures
Additional file 6 of Systems thinking methods: a worked example of supporting emergency medical services decision-makers to prioritize and contextually analyse potential interventions and their implementation
Creators: name: Rehbock, Cassandra
name: Krafft, Thomas
name: Sommer, Anja
name: Beumer, Carijn
name: Beckers, Stefan K.
name: Thate, Stefan
name: Kaminski, Jörn
name: Ziemann, Alexandra
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Additional file 6. The best intervention variables.
Structural and dynamical modeling of WINGS clusters. III. The pseudo phase-space density profile
Creators: name: Biviano, A.
name: Mamon, G. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Numerical simulations indicate that cosmological halos display power-law radial profiles of pseudo phase-space density (PPSD), Q=rho/sigma^3, where rho is mass density and sigma velocity dispersion. We test these predictions using the parameters derived from the Markov Chain Monte Carlo (MCMC) analysis performed with the MAMPOSSt code on the observed kinematics of a velocity dispersion based stack (sigmav) of 54 nearby regular clusters of galaxies from the WINGS dataset. In the definition of PPSD, the density is either in total mass rho (Q_rho) or in galaxy number density nu (Q_nu) of three morphological classes of galaxies (ellipticals, lenticulars, and spirals), while the velocity dispersion (obtained by inversion of the Jeans equation) is either the total (Q_rho and Q_nu) or its radial component (Q_r,rho and Q_r,nu). We find that the PPSD profiles are power-law relations for nearly all MCMC parameters. The logarithmic slopes of our observed Q_rho(r) and Q_r,rho(r) for ellipticals and spirals are in excellent agreement with the predictions for particles in simulations, but slightly shallower for S0s. For Q_nu(r) and Q_r,nu(r), only the ellipticals have a PPSD slope matching that of particles in simulations, while the slope for spirals is much shallower, similar to that of subhalos. But for cluster stacks based on richness or gas temperature, the fraction of power-law PPSDs is lower (esp. Q_nu) and the Q_rho slopes are shallower, except for S0s. The observed PPSD profiles, defined using rho rather than nu, appear to be a fundamental property of galaxy clusters. They would be imprinted during an early phase of violent relaxation for dark matter and ellipticals, and later for spirals as they move towards dynamical equilibrium in the cluster gravitational potential, while S0s are either intermediate (richness and temperature-based stacks) or a mixed class (sigmav stack).
description: To be published in Astronomy and Astrophysics. 16 pages, 22 figures
Epipactis helleborine (L. ) Crantz (Orchidaceae Juss. ) в заказнике «Русский лес» (ставропольская возвышенность)
Creators: name: Белоус В.Н.
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2018
Subjects: ОНТОГЕНЕТИЧЕСКАЯ СТРУКТУРА
РЕДКИЙ И ИСЧЕЗАЮЩИЙ ВИД
ЛЕСНЫЕ ЛАНДШАФТЫ
СТАВРОПОЛЬСКИЙ КРАЙ
СЕВЕРНЫЙ КАВКАЗ

description: В статье обсуждаются результаты наблюдений за состоянием ценопопуляции Epipactis helleborine. Представлены эколого-биологические аспекты изученного вида.
Meta Heusser an Elise
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1866

description: Textincipit: " Meine liebe Elise! / Bei meiner Abreise von Schaffhausen ahnte ich / nicht, dass es so lange dauern würde bis ich mich / mit einem schriftlichen Grusse bei dir einfinden / werde. [...]"