cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: ВЛИЯНИЕ ГОЛШТИНИЗАЦИИ НА ПРОДУКТИВНЫЕ И ВОСПРОИЗВОДИТЕЛЬНЫЕ КАЧЕСТВА СКОТА ЯРОСЛАВСКОЙ ПОРОДЫ В СТАВРОПОЛЬСКОМ КРАЕ
Creators: name: Лапина, М.Н.
name: Ковалева, Г.П.
name: Витол, В.А.
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: Скрещивание отечественных пород скота с голштинами привело не только к значительному росту молочной продуктивности животных, но и снижению их воспроизводительных качеств и сокращению периода продуктивного использования. Исследования по изучению продуктивных и воспроизводительных качеств голштинизированного скота ярославской породы проводились в условиях Петровского района Ставропольского края. Объектом исследования являлись коровы ярославской голштинизированной породы общей численностью 1092 головы. На основании базы данных ПК «СЕЛЭКС» за период с 2001 по 2017 годы, были изучены следующие показатели: удой, массовая доля жира, молочный жир, скорость молоковыведения, живая масса, возраст первого осеменения и первого отёла, продолжительность сервис-периода, индекс осеменения. Установлено, что проводимое в течение 15 лет скрещивание с голштинской породой оказало влияние на продуктивные показатели скота ярославской породы. Удой у высококровных животных увеличился на 2190,4 кг, массовая доля жира в молоке снизилась на 0,14%, скорость молокоотдачи возросла на 1,12 кг/мин. Увеличилась живая масса тёлок при первом осеменении на 60,3 кг, возраст при первом осеменении и первом отёле снизился на 9,6 и 8,7 месяца. Продолжительность сервис-периода по стаду возросла на 65 дней, у 62,2% поголовья продолжительность сервис-периода составила 90 дней. Индекс осеменения у ремонтных тёлок и коров увеличился на 1,10 и 1,08. Следовательно, голштинизация скота ярославской породы приводит к значительным изменениям продуктивных и воспроизводительных качеств скота ярославской породы как в сторону их улучшения так и ухудшения.
title: Морфобиохимические показатели, уровень резистентности молодняка овец в зависимости от возрастного подбора родительских пар
Creators: name: Гайдашов, Сергей Иванович
name: Омаров, Арслан Ахметович
Publisher: name: ФГБНУ "Северо-Кавказский федеральный научный аграрный центр"
Year: 2019

description: Произошедшие существенные изменения в овцеводстве в кризисный период смены экономической модели в России поставили перед учеными и практиками задачу поиска новых векторов рентабельного ведения отрасли. Анализ мирового овцеводства показывает, что одним из таких  приемов является создание новых специализированных мясных пород овец, а также увеличение мясной и шерстной продуктивности отечественных пород.
Хочется отметить, что овцы северокавказской мясо-шерстной породы интенсивного типа,  и по своему происхождению и направленной селекции характеризуются высокой продуктивностью и дают кроссбредную шерсть высокого качества. Так, в целом по стаду в племзаводе настригают по 3,2-3,4 кг мытой шерсти, в отдельные годы этот настриг составляет 3,5-3,6 кг. Эти настриги хозяйство сохранило и в настоящее время.
Следует отметить высокий генетический потенциал овец северокавказской мясо-шерстной породы. Достаточно сказать, что последние годы хозяйство представляет на выставки разных категорий (всероссийские и региональные) животных с живой массой баранов-производителей – 162 кг, баранов годовиков – 123 кг, маток – 133 кг.
Neue mittelsteinzeitliche Fundplätze im oberen Illertal und im Kleinwalsertal
Creators: name: Gulisano, Giuseppe
Publisher: name: DGUF e.V.
Year: 2017

description: [nicht vorhanden / not available]
description: Archäologische Informationen, Bd. 17, Nr. 1 (1994): Archäologische Informationen
Methoden der Feldforschung / Prüfungsfragen
Creators: name: Peter Oberosler
Publisher: name: Zenodo
Year: 2023

description: Methoden der Feldforschung / Einheit vom 14.05.2019 / SoSe 2019; 
Institut für Musikwissenschaft / Universität Innsbruck; 
Prof. Dr. Ammann Raymond / Peter Oberosler M.A.;
title: Reconstruction of volcanic and hydrothermal settings and mineralization of the ABM deposit, Finlayson Lake district, Yukon, Canada
Creators: name: Denisová, Nikola
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: The ABM deposit is a bimodal-felsic, replacement-style volcanogenic massive sulfi de (VMS) deposit located in the Finlayson Lake district, Yukon, Canada. In this dissertation, detailed core mapping, petrography, lithogeochemistry, and microanalytical methods are used to reconstruct the tectonostratigraphic framework for the deposit, the hydrothermal footprint, mineral chemical composition of the mineralization, and to integrate these to understand the genesis of the ABM deposit. The deposit is hosted by Late Devonian continental back-arc-related volcano-sedimentary rocks of the Kudz Ze Kayah formation. The distribution and character of coherent felsic and mafi c rocks suggest that the rocks were deposited in a back-arc basin proximal to a volcanic center, and the chemostratigraphy shows three sequences with distinct geochemical signatures. Reconstruction of the basin architecture has identified two sets of synvolcanic faults, and an argillite lens at the contact between the sequence hosting the mineralization and the hanging wall sequence that documents a period of volcanic inactivity during which the hydrothermal system was active. Hydrothermal alteration assemblages extend for 100s-1000s of meters laterally and into the footwall and hanging wall. The main alteration processes are feldspar destruction and formation of white mica and chlorite. The earliest and most extensive alteration assemblage is moderate white mica ± chlorite that formed at ~215±30 °C. It is overprinted by a pervasive white mica assemblage that formed at ~250±15 °C. A pervasive chlorite assemblage formed at ~320±10 °C (temperatures were determined by illite and chlorite thermometry) and overprints the white micarich assemblages. The massive sulfi de mineralization occurs as a series of stacked and stratabound lenses subparallel to the volcanic stratigraphy, overprinting the pervasive alteration assemblages. Three major mineralization assemblages occur: (1) a pyrite-sphalerite assemblage enriched in Zn- Pb-As-Sb-Ag-Au that formed at temperatures ~200-270 °C; (2) a pyrite-chalcopyrite-magnetitepyrrhotite assemblage enriched in Cu-Bi-Se-Co that formed at temperatures ~300-350 °C and occurs at the center of the mineralization lenses; and (3) a minor chalcopyrite-pyrrhotite-pyrite stringer assemblage that occurs at the margins of the lenses and formed at temperatures >300 °C. The mineralization formed by mixing of seawater infi ltrated in the subsurface with hot reduced acidic hydrothermal fl uids and consequent zone refi ning.
title: Integrative taxonomy and phylogeny of the damselfly genus Forcepsioneura Lencioni, 1999 (Odonata: Coen­agrio­nidae: Protoneurinae) with description of two new species from the Brazilian Atlantic Forest
Creators: name: Pimenta, Ana Luiza Anes
name: Pinto, Ângelo Parise
name: Takiya, Daniela Maeda
Publisher: name: Senckenberg Gesellschaft für Naturforschung
Year: 2019

description: Forcepsioneura Lencioni, 1999 is a small genus of eight forest-dependent damselfly species endemic to the Brazilian Atlantic Forest domain. Some of its species are difficult to identify due to their strong morphological similarities. Thus, the use of DNA sequences for taxonomic purposes is warranted. This study examined the diversity among mitochondrial COI and 16S and nuclear PRMT markers in Forcepsioneura, identified discrete evolutionary units based on morphological and molecular characters, and described two new species using an integrative approach to propose species-level hypotheses. The first molecular phylogeny of Forcepsioneura species, including seven of the 10 valid species, is presented. Forcepsioneura gabriela sp.n. and Forcepsioneura janeae sp.n. are described and illustrated based on males. Forcepsioneura gabriela sp.n. is closely related to F. garrisoni Lencioni, 1999 and F. regua Pinto & Kompier, 2018 and was included in the light blue group, but was recovered with high K2P COI divergence values relative to F. garrisoni. PRMT and ribosomal 16S rDNA sequences were too conservative to distinguish this new species from others of the light blue group. Nevertheless, F. gabriela sp.n. can be distinguished from other Forcepsioneura by its coloration and shape and length of the ventrobasal process of cercus and MP vein. On the other hand, we were unable to get COI sequences for F. janeae sp.n., but morphological diagnostic characters, such as, coloration and shape of the posterior lobe of the prothorax and ventrobasal process of cercus supported its proposal as a new species. A concatenated Bayesian analysis of all markers supported the monophyly of both Forcepsioneura and the light blue group of species. This study affirmed the value of COI sequence variation for species-level studies but did not support the use of PRMT and 16S for this group of damselflies, as there was very little interspecific variation between some closely related species.
title: Miocene uplift and Pleistocene forest connectivity drove the evolution of large-bodied Afrotropical pill scarabs (Co­leo­ptera: Hybosoridae: Afrocloetus and Congomostes)
Creators: name: Grebennikov, Vasily V.
Publisher: name: Senckenberg Gesellschaft für Naturforschung
Year: 2019

description: This study targets the post-Oligocene evolution of low-vagility beetles in wet African forests. Two nominal genera of large-bodied pill scarabs form the focus: the East African Afrocloetus with two nominal species and the Central African Congomostes with three nominal species. Both genera are rarely sampled, particularly Afrocloetus which is known until now from two holotypes collected in 1948 and 1957. Long series of Afrocloetus are newly reported from four Tanzanian localities: Kimboza forest, Kaguru, Rubeho and Udzungwa; the last three belong to the biodiverse chain of the Eastern Arc Mountains. A phylogenetic analysis utilized a matrix consisting of 52 terminals (including five Afrocloetus and two Congomostes) and an alignment of 2,940 bp from one mitochondrial and two nuclear fragments. The analysis recovered both genera as monophyletic and forming the sister clade to the Afrotropical Philharmostes group of genera. Molecular clock analysis of 39 DNA barcodes of both genera estimated their separation within a temporal window (13.0 – 6.8 Ma) that is fully concurrent with the Miocene uplift of the East African Plateau causing aridification and forest fragmentation. Three Tanzanian localities each support an endemic mitochondrial Afrocloetus clade evolving in allopatry, following the pre-Pleistocene range breakup of their originally widespread ancestor (= first cycle of forest expansion and contraction). Two morphologically and genetically distinct Afrocloetus clades co-exist in Udzungwa; this sympatry is attributed to secondary re-colonization of Udzungwa by the younger and reproductively isolated clade at 2.4 – 1.2 Ma (= second cycle of forest expansion and contraction). This hypothesised re-colonisation of Udzungwa by flightless beetles coincides with the Pleistocene climatic cycles and suggests temporal connectivity between Rubeho and Udzungwa forests. Adults of Afrocloetus are extensively illustrated, compared among themselves and with those of Congomostes, and their relevant evolutionary markers are discussed. The taxonomy of both nominal and likely synonymous genera is unmodified pending further research. Habitus images, DNA sequences and other supplementary information of all sequenced specimens are available online at dx.doi.org/10.5883/DS-VGDS002 and dx.doi.org/10.5883/DS-VGDS003.
title: The phylogeny of Ptiliidae (Coleoptera: Staphylinoidea) – the smallest beetles and their evolutionary transformations
Creators: name: Polilov, Alexey A.
name: Ribera, Ignacio
name: Yavorskaya, Margarita I.
name: Cardoso, Anabela
name: Grebennikov, Vasily V.
name: Beutel, Rolf G.
Publisher: name: Senckenberg Gesellschaft für Naturforschung
Year: 2019

description: The smallest beetles and the smallest non-parasitic insects belong to the staphylinoid family Ptiliidae. Their adult body length can be as small as 0.325 mm and is generally smaller than 1 mm. Here we address the phylogenetic relationships within the family using formal analyses of adult morphological characters and molecular data, and also a combination of both for the first time. Strongly supported clades are Ptiliidae + Hydraenidae, Ptiliidae, Ptiliidae excl. Nossidium, Motschulskium and Sindosium, Nanosellini, and a clade comprising Acrotrichis, Smicrus, Nephanes and Baeocrara. A group comprising Actidium, Oligella and Micridium + Ptilium is also likely monophyletic. Limulodes + Cephaloplectus, strongly supported as a clade (Cephaloplectus included only in morphological analysis), are deeply nested within Ptiliidae in the morphology-only non-weighted and in the molecular analyses, but placed as sister to the remaining Ptiliidae (excl. Nossidium, Motschulskium and Sindosium) after successive reweighting. We propose that Ptiliidae should be taxonomically divided into two subfamilies: the most recently established Nossidiinae and Ptiliinae, the latter currently composed of seven tribes: Acrotrichini, Cephaloplectini, Discheramocephalini, Nanosellini, Ptenidiini, Ptiliini and Ptinellini, although the monophyly and taxonomic status is still uncertain in some cases. Important morphological innovations evolved in the stem group of Hydraenidae and Ptiliidae, including partly internalized mouthparts suitable for saprophagy and sporophagy, a labral-mandibular locking device, a specific elytral locking mechanism with elongated alacristae, wings with fringes of hairs, and a very unusual spermathecal pump. A complex feature of Ptiliidae linked with miniaturization is the transformation of the alae into “feather wings”, with a highly efficient flight mechanism unique in beetles. Nanosellini include the smallest ptiliid species and display features correlated with extremely small body size, such as simplification of the endoskeleton of the head and thorax, far-reaching reduction of the wing venation, and a reduced number of antennomeres.
Au Bonheur des Futurs: New design placements for sustainable production and consumption through retail and market-making in fashion
Creators: name: Hussain, Talia
Publisher: name: Loughborough University
Year: 2023

description: This PhD thesis examines the role of retail and market-making practices in producing unsustainable outcomes in the fashion industry, and explores how alternative retail models might produce different outcomes. The project is exploratory, formed of six linked studies employing an overarching design problematisation and reframing approach. The first four studies explore current understandings of the problem from various perspectives, exposing the inadequacy of current solution proposals. The fifth reframes the problem, centering the retail business model and the ubiquitous practice of selling clothes as finished, ready-made products. The final study advances rudimentary sketches for alternative systems of apparel provision. The research challenges the concept of the product and the prevailing model of the consumer marketplace. It suggests new potentialities for a sustainable economy which prioritise customer value, human agency, relational goods and community-based creative enterprise networks.
Unconventional and Exotic Magnetism in Carbon-Based Structures and Related Materials
Creators: name: Kuzemsky, A. L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The detailed analysis of the problem of possible magnetic behavior of the carbon-based structures was fulfilled to elucidate and resolve (at least partially) some unclear issues. It was the purpose of the present paper to look somewhat more critically into some conjectures which have been made and to the peculiar and contradictory experimental results in this rather indistinct and disputable field. Firstly the basic physics of magnetism was briefly addressed. Then a few basic questions were thoroughly analyzed and critically reconsidered to elucidate the possible relevant mechanism (if any) which may be responsible for observed peculiarities of the "magnetic" behavior in these systems. The arguments supporting the existence of the intrinsic magnetism in carbon-based materials, including pure graphene were analyzed critically. It was concluded that recently published works have shown clearly that the results of the previous studies, where the "ferromagnetism" was detected in pure graphene, were incorrect. Rather, graphene is strongly diamagnetic, similar to graphite. Thus the possible traces of a quasi-magnetic behavior which some authors observed in their samples may be attributed rather to induced magnetism due to the impurities, defects, etc. On the basis of the present analysis the conclusion was made that the thorough and detailed experimental studies of these problems only may shed light on the very complicated problem of the magnetism of carbon-based materials. Lastly the peculiarities of the magnetic behavior of some related materials and the trends for future developments were mentioned.
description: 40 pages, 5 tables, 221 References
On ergodic least-squares estimators of the generalized diffusion coefficient for fractional Brownian motion
Creators: name: Boyer, Denis
name: Dean, David S.
name: Mejia-Monasterio, Carlos
name: Oshanin, Gleb
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We analyse a class of estimators of the generalized diffusion coefficient for fractional Brownian motion $B_t$ of known Hurst index $H$, based on weighted functionals of the single time square displacement. We show that for a certain choice of the weight function these functionals possess an ergodic property and thus provide the true, ensemble-averaged, generalized diffusion coefficient to any necessary precision from a single trajectory data, but at expense of a progressively higher experimental resolution. Convergence is fastest around $H\simeq0.30$, a value in the subdiffusive regime.
description: 4 pages and 2 figures
title: Задача конвективного теплообмена на обтекаемой плоской пластине в оптическом расходомере газа и жидкости
title: PROBLEM OF CONVECTIVE HEAT TRANSFER ON STREAMLINED FLAT PLATE IN OPTICAL FLOW METER OF GAS AND LIQUID
Creators: name: Семенов, Олег Юрьевич
name: Демко, Анатолий Ильич
Publisher: name: Издательский центр СурГУ
Year: 2019

description: Рассмотрена задача конвективного теплообмена на обтекаемой плоской пластине в оптическом расходомере газа и жидкости. Предложен способ измерения скорости потока по изменению поперечного градиента температуры. Исследована зависимость углового отклонения луча лазера от скорости потока с учетом закономерностей теплообмена при свободной конвекции. Обнаружено, что распределение температуры очень неустойчиво по от-ношению к скорости течения воздуха в измерительной ячейке. Показана возможность разработки лазерного расходомера для измерения небольших расходов газа. Определены границы применимости предлагаемого метода измерений.
description: The article considers the problem of convective heat transfer on a streamlined flat plate in an optical flowmeter of gas and liquid. A method for measuring the flow velocity by changing the transverse temperature gradient is proposed. The dependence of the angular deviation of the laser beam on the flow velocity is studied taking into account the laws of heat transfer during free convection. The unstable temperature distribution for the air flow rate in the measuring cell is found. The possibility of developing a laser flow meter for measuring small gas flow rates are shown. The applicability limits of the proposed measurement method are determined.
Landau gauge gluon and ghost propagators from lattice QCD with Nf=2 twisted mass fermions at finite temperature
Creators: name: Aouane, R.
name: Burger, F.
name: Ilgenfritz, E. -M.
name: Muller-Preussker, M.
name: Sternbeck, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the temperature dependence of the Landau gauge gluon and ghost propagators in lattice QCD with two flavors of maximally twisted mass fermions. For these propagators we provide and analyze data which corresponds to pion mass values between 300 and 500 MeV. For the gluon propagator we find that both the longitudinal and transversal component change smoothly in the crossover region, while the ghost propagator exhibits only a very weak temperature dependence. For momenta between 0.4 and 3.0 GeV we give a parametrization for our lattice data. It may serve as input to studies which employ continuum functional methods.
description: 11 pages, 3 figures, Table III has been corrected
Morphogenesis of defects and tactoids during isotropic-nematic phase transition in self-assembled lyotropic chromonic liquid crystals
Creators: name: Kim, Young-Ki
name: Shiyanovskii, Sergij V.
name: Lavrentovich, Oleg D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We explore the structure of nuclei and topological defects in the first-order phase transition between the nematic (N) and isotropic (I) phases in lyotropic chromonic liquid crystals (LCLCs). The LCLCs are formed by self-assembled molecular aggregates of various lengths and show a broad biphasic region. The defects emerge as a result of two mechanisms. 1) Surface anisotropy mechanism that endows each N nucleus (tactoid) with topological defects thanks to preferential (tangential) orientation of the director at the closed I-N interface, and 2) Kibble mechanism with defects forming when differently oriented N tactoids merge with each other. Different scenarios of phase transition involve positive (N-in-I) and negative (I-in-N) tactoids with non-trivial topology of the director field and also multiply connected tactoids-in-tactoids configurations. The closed I-N interface limiting a tactoid shows a certain number of cusps; the lips of the interface on the opposite sides of the cusp make an angle different from pi. The N side of each cusp contains a point defect-boojum. The number of cusps shows how many times the director becomes perpendicular to the I-N interface when one circumnavigates the closed boundary of the tactoid. We derive conservation laws that connect the number of cusps c to the topological strength m of defects in the N part of the simply-connected and multiply-connected tactoids. We demonstrate how the elastic anisotropy of the N phase results in non-circular shape of the disclination cores. A generalized Wulff construction is used to derive the shape of I and N tactoids as the function of I-N interfacial tension anisotropy in the frozen director field of various topological charges m. The complex shapes and structures of tactoids and topological defects demonstrate an important role of surface anisotropy in morphogenesis of phase transitions in liquid crystals.
description: 31 pages, 13 figures
title: Определение оптимального состава раствора ASP при добыче тяжелой нефти методом вращающейся капли
title: ESTIMATION OF IDEAL COMPOSITION OF ASP SOLUTION DURING PRODUCTION OF HEAVY OIL BY ROTATING DROP METHOD
Creators: name: Заводовский, Александр Геннадьевич
Publisher: name: Издательский центр СурГУ
Year: 2019

description: Инновационный метод ASP можно использовать для увеличения нефтеотдачи. Предлагается методика для оптимизации состава раствора ASP на основе метода вращающейся капли. С ее помощью определяется зависимость коэффициента поверхностного натяжения на границе нефть – раствор ASP от концентрации компонентов раствора и температуры. Получены составы растворов для добычи тяжелой нефти.
description: The innovative ASP method can be used to enhance oil recovery. A technique is proposed to refine the ASP solution based on the rotating drop method. The method is used to determine the dependence of the surface tension coefficient at the oil-ASP interface on the solution component concentration and temperature. The compositions of solutions for heavy oil extraction were obtained.
Marquette Law School National Poll: March 2022
Creators: name: Marquette Law School
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Interest in politics (1); President Joe Biden approval rating (1); US Supreme Court approval rating (1); President Biden’s handling of the war in Ukraine (1); importance of next US Supreme Court justice (1); support for specific reasons to vote for/against appointing a Supreme Court justice (2); guess whether majority of the current Supreme Court were appointed by Republicans or Democrats (1); support for/qualifications of Katanji Brown Jackson (3); favorability of US politicians/institutions (5); ideology of US politicians/institutions (6); have rights been expanded or reduced for certain groups within the United States (6);favorability of potential future Supreme Court decisions (4); coronavirus vaccine (2); severity of coronavirus cases (1); confidence in vote count accuracy during the 2020 presidential election (1); voting in 2024 (4); favorability of the Black Lives Matter movement (1); ability of a president to influence gas prices (1); trust in the US government (1); trust in most people (1).
title: ПРЕДЕЛЫ СОЦИАЛЬНОГО ГОСУДАРСТВА:КОНСТИТУЦИОННО-ПРАВОВЫЕ ОБОСНОВАНИЯr
title: LIMITS OF SOCIAL STATE:CONSTITUTIONAL AND LEGAL REASONING
Creators: name: Липчанская, Мария  Александровна
Publisher: name: Издательский центр СурГУ
Year: 2019

description: В  статье  рассмотрена сущность  социального  государства  и поставлен вопрос  о  его пределах (объеме гарантированных социальных прав). Отмечено, что недопустимыми являются  как  чрезмерное  расширение  пределов  социального  государства  (что  влечет  за  собой формирование потребительского отношения граждан, а также риск перерастания подобного государства в патерналистское), так и чрезмерное их сужение вплоть до полной ликвидации некоторых социальных прав, как предлагают некоторые специалисты. Сделан вывод о необходимости закрепления минимальных финансовых норм –гарантий реализации конституционно-правовых положений российской Конституции о социальном государстве.
description: The  article  considers  the  essence  of  the  social  state  and  addresses  the  question  of  its  limits (the extent of the guaranteed social rights). The author notes that excessive extension of the social state (which involves the formation of the consumer relations of citizens and risk of development of that state into paternalistic), as well as its excessive narrowing up to complete elimination of some social rights, is unacceptable. At the same time, the author concludes about a need for establishing the minimum financial norms that would guarantee the realization of constitutional legal statuses of the Russian Constitution on the social state
Enhancement of graphene visibility on transparent substrates by refractive index optimization
Creators: name: Gonçalves, H.
name: Alves, L.
name: Moura, C.
name: Belsley, M.
name: Stauber, T.
name: Schellenberg, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Optical reflection microscopy is one of the main imaging tools to visualize graphene microstructures. Here is reported a novel method that employs refractive index optimization in an optical reflection microscope, which greatly improves the visibility of graphene flakes. To this end, an immersion liquid with a refractive index that is close to that of the glass support is used in-between the microscope lens and the support improving the contrast and resolution of the sample image. Results show that the contrast of single and few layer graphene crystals and structures can be enhanced by a factor of 4 compared to values commonly achieved with transparent substrates using optical reflection microscopy lacking refractive index optimization.
description: 9 pages, 5 figures
Consistent probabilities in loop quantum cosmology
Creators: name: Craig, David A.
name: Singh, Parampreet
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A fundamental issue for any quantum cosmological theory is to specify how probabilities can be assigned to various quantum events or sequences of events such as the occurrence of singularities or bounces. In previous work, we have demonstrated how this issue can be successfully addressed within the consistent histories approach to quantum theory for Wheeler-DeWitt-quantized cosmological models. In this work, we generalize that analysis to the exactly solvable loop quantization of a spatially flat, homogeneous and isotropic cosmology sourced with a massless, minimally coupled scalar field known as sLQC. We provide an explicit, rigorous and complete decoherent histories formulation for this model and compute the probabilities for the occurrence of a quantum bounce vs. a singularity. Using the scalar field as an emergent internal time, we show for generic states that the probability for a singularity to occur in this model is zero, and that of a bounce is unity, complementing earlier studies of the expectation values of the volume and matter density in this theory. We also show from the consistent histories point of view that all states in this model, whether quantum or classical, achieve arbitrarily large volume in the limit of infinite `past' or `future' scalar `time', in the sense that the wave function evaluated at any arbitrary fixed value of the volume vanishes in that limit. Finally, we briefly discuss certain misconceptions concerning the utility of the consistent histories approach in these models.
description: 22 pages, 3 figures. Matches published version
Fully Adaptive Gaussian Mixture Metropolis-Hastings Algorithm
Creators: name: Luengo, David
name: Martino, Luca
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Markov Chain Monte Carlo methods are widely used in signal processing and communications for statistical inference and stochastic optimization. In this work, we introduce an efficient adaptive Metropolis-Hastings algorithm to draw samples from generic multi-modal and multi-dimensional target distributions. The proposal density is a mixture of Gaussian densities with all parameters (weights, mean vectors and covariance matrices) updated using all the previously generated samples applying simple recursive rules. Numerical results for the one and two-dimensional cases are provided.
On Shifted Eisenstein Polynomials
Creators: name: Heyman, Randell
name: Shparlinski, Igor E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We study polynomials with integer coefficients which become Eisenstein polynomials after the additive shift of a variable. We call such polynomials shifted Eisenstein polynomials. We determine an upper bound on the maximum shift that is needed given a shifted Eisenstein polynomial and also provide a lower bound on the density of shifted Eisenstein polynomials, which is strictly greater than the density of classical Eisenstein polynomials. We also show that the number of irreducible degree $n$ polynomials that are not shifted Eisenstein polynomials is infinite. We conclude with some numerical results on the densities of shifted Eisenstein polynomials.
title: <> teoria delle sfere omocentriche da Eudosso di Cnido a Giovan Battista Amico
Creators: name: De Rose, Luciana
name: Pantano, Pietro
name: Piperno, Franco
Publisher: name: Università della Calabria
Year: 2016

description: Dottorato "Archimede" in Scienze, Comunicazione e Tecnologie, Fisica e Tecnologie Quantistiche Ciclo XXVI,a.a. 2015-2016
title: Investigation of strength and time properties of lime-sand brick under dynamic loading
Creators: name: Lamzin, Dmitrii A.
name: Lomunov, Andrey K.
name: Konstantinov, Aleksander Yu.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019

description: The results of experimental study of mechanical properties of samples of sand-lime brick under dynamic loading are presented. The tests were carried out using the traditional Kolsky method and its modification - dynamic splitting (the so-called «Brazilian test»). The laws of change in strength and time properties of the investigated material are determined in
the strain rate range of 3·102 -2.5·103  s -1 under compression and in the stress rate range of 2·101 -3·102 GPa/s under tension.
title: Lower limb joint biomechanics-based identification of gait transitions in between level walking and stair ambulation
Creators: name: Grimmer, Martin
name: Zeiss, Julian
name: Weigand, Florian
name: Zhao, Guoping
name: Lamm, Sascha
name: Steil, Martin
name: Heller, Adrian
Publisher: name: PLOS
Year: 2021

description: Lower limb exoskeletons and lower limb prostheses have the potential to reduce gait limitations during stair ambulation. To develop robotic assistance devices, the biomechanics of stair ambulation and the required transitions to level walking have to be understood. This study aimed to identify the timing of these transitions, to determine if transition phases exist and how long they last, and to investigate if there exists a joint-related order and timing for the start and end of the transitions. Therefore, this study analyzed the kinematics and kinetics of both transitions between level walking and stair ascent, and between level walking and stair descent (12 subjects, 25.4 yrs, 74.6 kg). We found that transitions primarily start within the stance phase and end within the swing phase. Transition phases exist for each limb, all joints (hip, knee, ankle), and types of transitions. They have a mean duration of half of one stride and they do not last longer than one stride. The duration of the transition phase for all joints of a single limb in aggregate is less than 35% of one stride in all but one case. The distal joints initialize stair ascent, while the proximal joints primarily initialize the stair descent transitions. In general, the distal joints complete the transitions first. We believe that energy- and balance-related processes are responsible for the joint-specific transition timing. Regarding the existence of a transition phase for all joints and transitions, we believe that lower limb exoskeleton or prosthetic control concepts should account for these transitions in order to improve the smoothness of the transition and to thus increase the user comfort, safety, and user experience. Our gait data and the identified transition timings can provide a reference for the design and the performance of stair ambulation- related control concepts.
The Herschel/HIFI spectral survey of OMC-2 FIR 4 (CHESS): An overview of the 480 to 1902 GHz range
Creators: name: Kama, M.
name: López-Sepulcre, A.
name: Dominik, C.
name: Ceccarelli, C.
name: Fuente, A.
name: Caux, E.
name: Higgins, R.
name: Tielens, A. G. G. M.
name: Alonso-Albi, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Broadband spectral surveys of protostars offer a rich view of the physical, chemical and dynamical structure and evolution of star-forming regions. The Herschel Space Observatory opened up the terahertz regime to such surveys, giving access to the fundamental transitions of many hydrides and to the high-energy transitions of many other species. A comparative analysis of the chemical inventories and physical processes and properties of protostars of various masses and evolutionary states is the goal of the Herschel CHEmical Surveys of Star forming regions (CHESS) key program. This paper focusses on the intermediate-mass protostar, OMC-2 FIR 4. We obtained a spectrum of OMC-2 FIR 4 in the 480 to 1902 GHz range with the HIFI spectrometer onboard Herschel and carried out the reduction, line identification, and a broad analysis of the line profile components, excitation, and cooling. We detect 719 spectral lines from 40 species and isotopologs. The line flux is dominated by CO, H2O, and CH3OH. The line profiles are complex and vary with species and upper level energy, but clearly contain signatures from quiescent gas, a broad component likely due to an outflow, and a foreground cloud. We find abundant evidence for warm, dense gas, as well as for an outflow in the field of view. Line flux represents 2% of the 7 L_Sol luminosity detected with HIFI in the 480 to 1250 GHz range. Of the total line flux, 60% is from CO, 13% from H2O and 9% from CH3OH. A comparison with similar HIFI spectra of other sources is set to provide much new insight into star formation regions, a case in point being a difference of two orders of magnitude in the relative contribution of sulphur oxides to the line cooling of Orion KL and OMC-2 FIR 4.
description: Accepted for publication in Astronomy & Astrophysics; 16 figures, 4 tables, 1 appendix; reduced data will be made available at http://www-laog.obs.ujf-grenoble.fr/heberges/hs3f/
title: The strain rate concentration factor for round and flat test specimens
Creators: name: Takaki, R.
name: Noda, N.A.
name: Shen, Y.
name: Inoue, A.
name: Sano, Y.
name: Takase, Y.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019

description: In this study, the strain rate concentration is considered for high speed tensile test, which is now being recognized as a standard testing method. To evaluate the impact strength of engineering materials, Izod and Charpy tests are unsuitable since they cannot control the impact speeds and therefore the testing results do not coincide with the real failure of real
products. For smooth specimens, the strain rate can be determined from the tensile speed 𝑢𝑢/𝑡𝑡 and specimen length 𝑙𝑙 as 𝜀𝜀̇𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠ℎ = 𝑢𝑢/𝑡𝑡𝑡𝑡. For notched specimens, however, the strain rate at the notch root 𝜀𝜀̇𝑛𝑛𝑛𝑛𝑛𝑛 𝑛𝑛ℎ should be analyzed accurately. In this study, therefore, the strain rate concentration factor defined as 𝐾𝐾𝑡𝑡𝜀𝜀̇ = 𝜀𝜀̇𝑛𝑛𝑛𝑛𝑛𝑛 𝑛𝑛ℎ/𝜀𝜀̇𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠ℎ is studied with varying the notch geometry and specimen length for round and flat test specimens. In particular, the relationship between the strain rate concentration factor and the stress concentration factor is investigated
by varying the notch geometry and specimen length.
Spectrum of the totally asymmetric simple exclusion process on a periodic lattice - bulk eigenvalues
Creators: name: Prolhac, Sylvain
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the totally asymmetric simple exclusion process (TASEP) on a periodic one-dimensional lattice of L sites. Using Bethe ansatz, we derive parametric formulas for the eigenvalues of its generator in the thermodynamic limit. This allows to study the curve delimiting the edge of the spectrum in the complex plane. A functional integration over the eigenstates leads to an expression for the density of eigenvalues in the bulk of the spectrum. The density vanishes with an exponent 2/5 close to the eigenvalue 0.
description: 40 pages
Partially ordered sets in Macaulay2
Creators: name: Cook, David
name: Mapes, Sonja
name: Whieldon, Gwyneth
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 06A06, 06A11

description: We introduce the package Posets for Macaulay2. This package provides a data structure and the necessary methods for working with partially ordered sets, also called posets. In particular, the package implements methods to enumerate many commonly studied classes of posets, perform operations on posets, and calculate various invariants associated to posets.
description: 6 pages, 2 figures
Evolution equation for tagged particle density and correlations in single file diffusion
Creators: name: Suárez, Gonzalo
name: Hoyuelos, Miguel
name: Mártin, Héctor O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We derive and study a theoretical description for single file diffusion, i.e., diffusion in a one dimensional lattice of particles with hard core interaction. It is well known that for this system a tagged particle has anomalous diffusion for long times. The novelty of the present approach is that it allows for the derivation of correlations between a tagged particle and other particles of the system at a given distance with empty sites in between. The behavior of the correlation gives deeper insights into the processes involved. Numerical integration of differential equations are in good agreement with Monte Carlo simulations.
title: Modeling of elastoplastic deformation of structural steel by a trajectory containing three circles touching internally
Creators: name: Zubchaninov, V.G.
name: Alekseev, A.A.
name: Gultiaev, V.I.
name: Alekseeva, E.G.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019

description: To verify the mathematical model of the theory of processes, numerical calculations of the complex elastoplastic deformation of St3 steel along a flat curvilinear strain trajectory under combined tension-compression with torsion were carried out. The
numerical calculations are compared with the experimental data obtained by the authors on the experimental complex SN-EVM on thin-walled tubular specimen. It is shown that the used mathematical model qualitatively and quantitatively satisfactorily describes the main effects of complex plastic deformation for the class of strain trajectories under consideration.
Lattice distortion effects on topological phases in (LaNiO$_3$)$_2$/(LaAlO$_3$)$_N$ heterostructures grown along the [111] direction
Creators: name: Rüegg, Andreas
name: Mitra, Chandrima
name: Demkov, Alexander A.
name: Fiete, Gregory A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We theoretically investigate the influence of internal and external strain on topological phases in (LaNiO$_3$)$_2$/(LaAlO$_3$)$_N$ heterostructures grown along the [111] direction. At the Hartree-Fock level, topological phases originate from an interaction-generated effective spin-orbit coupling that opens a gap in the band structure. For the unstrained system, there is a quadratic band touching at the $Γ$ point at the Fermi energy for unpolarized electrons and Dirac points at K, K$'$ at the Fermi energy for fully polarized electrons. Using density functional theory we show that the quadratic band touching and Dirac points are remarkably stable to internal strain-induced out-of-plane distortions and rotations of the oxygen octahedra, which we compute. The lack of a gap opening from internal strain implies a robustness to the mean-field predicted topological phases for both the polarized and unpolarized systems. We also consider an external strain imposed along the [001] cubic direction and show this can open a gap at the $Γ$ point but leaves the Dirac points intact. Finally, we compute a phase diagram for parameters relevant to LaNiO$_3$ which shows that strain favors a phase with polarized orbitals and antiferromagnetic spin order, but leaves earlier predictions for a zero-magnetic field topological quantum Hall state essentially unchanged. Taken together, our results suggest that the [111] growth direction in perovskites may lead to thin films that are relatively immune to distortion effects compared to those grown along [001].
description: 10 pages, 9 figures; published version
VLA OH Zeeman Observations of the star forming region S88B
Creators: name: Sarma, A. P.
name: Brogan, C. L.
name: Bourke, T. L.
name: Eftimova, M.
name: Troland, T. H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present observations of the Zeeman effect in OH thermal absorption main lines at 1665 and 1667 MHz taken with the Very Large Array (VLA) toward the star forming region S88B. The OH absorption profiles toward this source are complicated, and contain several blended components toward a number of positions. Almost all of the OH absorbing gas is located in the eastern parts of S88B, toward the compact continuum source S88B-2 and the eastern parts of the extended continuum source S88B-1. The ratio of 1665/1667 MHz OH line intensities indicates the gas is likely highly clumped, in agreement with other molecular emission line observations in the literature. S88-B appears to present a similar geometry to the well-known star forming region M17, in that there is an edge-on eastward progression from ionized to molecular gas. The detected magnetic fields appear to mirror this eastward transition; we detected line-of-sight magnetic fields ranging from 90-400 μG, with the lowest values of the field to the southwest of the S88B-1 continuum peak, and the highest values to its northeast. We used the detected fields to assess the importance of the magnetic field in S88B by a number of methods; we calculated the ratio of thermal to magnetic pressures, we calculated the critical field necessary to completely support the cloud against self-gravity and compared it to the observed field, and we calculated the ratio of mass to magnetic flux in terms of the critical value of this parameter. All these methods indicated that the magnetic field in S88B is dynamically significant, and should provide an important source of support against gravity. Moreover, the magnetic energy density is in approximate equipartition with the turbulent energy density, again pointing to the importance of the magnetic field in this region.
description: 26 pages, 7 figures, accepted for publication in ApJ
title: Synthesis of Silver Modified Bioactive Glassy Materials with Antibacterial Properties via Facile and Low-Temperature Route
Creators: name: Gonzalo-Juan, Isabel
name: Xie, Fangtong
name: Becker, Malin
name: Tulyaganov, Dilshat U.
name: Ionescu, Emanuel
name: Lauterbach, Stefan
name: De Angelis Rigotti, Francesca
name: Fischer, Andreas
name: Riedel, Ralf
Publisher: name: MDPI
Year: 2021

description: There is an increasing clinical need to develop novel biomaterials that combine regenerative and biocidal properties. In this work, we present the preparation of silver/silica-based glassy bioactive (ABG) compositions via a facile, fast (20 h), and low temperature (80 °C) approach and their characterization. The fabrication process included the synthesis of the bioactive glass (BG) particles followed by the surface modification of the bioactive glass with silver nanoparticles. The microstructural features of ABG samples before and after exposure to simulated body fluid (SBF), as well as their ion release behavior during SBF test were evaluated using infrared spectrometry (FTIR), ultraviolet-visible (UV-Vis) spectroscopy, X-ray diffraction (XRD), electron microscopies (TEM and SEM) and optical emission spectroscopy (OES). The antibacterial properties of the experimental compositions were tested against Escherichia coli (E. coli). The results indicated that the prepared ABG materials possess antibacterial activity against E. coli, which is directly correlated with the glass surface modification.