cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparison of gene expression profile between human chondrons and chondrocytes: a cDNA microarray study
Creators: name: Graff, R.D.
name: Lee, G.M.
name: Francomano, C.A.
name: Becker, K.G.
name: Zhang, Z.
name: Fan, J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: OBJECTIVE: The chondron is a basic unit of articular cartilage that includes the chondrocyte and its pericellular matrix (PCM). This current study was designed to investigate the effects of the chondron PCM on the gene expression profile of chondrocytes. DESIGN: Chondrons and chondrocytes were enzymatically isolated from human articular cartilage, and maintained in pellet culture. Pellets of chondrons or chondrocytes were collected at days 1, 3 and 5 for cDNA microarray analysis. RESULTS: In comparison with chondrocytes alone, chondrons had 258 genes, in a broad range of functional categories, either up- or downregulated at the three time points tested. At day 1, 26 genes were significantly upregulated in chondrons and four downregulated in comparison to chondrocytes. At day 3, the number of upregulated chondron genes was 97 and the number downregulated was 43. By day 5, there were more downregulated genes (56) than upregulated genes (32) in chondrons. Upregulation of a group of heat shock proteins (HSPA1A, HSPA2 and HSPA8) in chondrons was validated by real time reverse transcription polymerase chain reaction (RT-PCR). Genes related to chondrocyte hypertrophy and dedifferentiation such as SSP1 and DCN were downregulated in chondrons as compared to the expression in chondrocytes. CONCLUSION: The presence of the PCM in chondrons has a profound influence on chondrocyte gene expression. Upregulation of the heat shock protein 70 may contribute to the robustness and active matrix production of chondrons. The intact PCM may further stabilize the phenotype of chondrocytes within chondrons.
(100273) Mary Gertrude James
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Linear-in-mass-ratio contribution to spin precession and tidal invariants in Schwarzschild spacetime at very high post-Newtonian order
Creators: name: Shah, Abhay G.
name: Pound, Adam
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using black hole perturbation theory and arbitrary-precision computer algebra, we obtain the post-Newtonian (pN) expansions of the linear-in-mass-ratio corrections to the spin-precession angle and tidal invariants for a particle in circular orbit around a Schwarzschild black hole. We extract coefficients up to 20pN order from numerical results that are calculated with an accuracy greater than 1 part in $10^{500}$. These results can be used to calibrate parameters in effective-one-body models of compact binaries, specifically the spin-orbit part of the effective Hamiltonian and the dynamically significant tidal part of the main radial potential of the effective metric. Our calculations are performed in a radiation gauge, which is known to be singular away from the particle. To overcome this irregularity, we define suitable Detweiler-Whiting singular and regular fields in this gauge, and we devise a rigorous mode-sum regularization method to compute the invariants constructed from the regular field.
ВИДОВОЕ РАЗНООБРАЗИЕ КОМАРОВ ГОМЕЛЬСКОГО РАЙОНА
Creators: name: Гулаков Андрей Владимирович
name: Юрченко Вероника Дмитриевна
Publisher: name: Эпоха науки
Year: 2020
Subjects: кровососущие комары
видовое разнообразие.

description: Представленная работа посвящена видовому разнообразию кровососущих комаров, распространенных в окрестностях г. Гомеля. Всего за период исследований было отловлено 348 экземпляров кровососущих комаров. Было установлено, что на исследованных участках доминантным видом являлся вид Culex pipiens в количестве 140 особей.
GROWTH AND SURVIVAL OF PLANTED FIRST-YEAR CHESTNUT SEEDLINGS IN CENTRAL MARYLAND
Creators: name: Beall, Colleen A.
Publisher: name: Maryland Shared Open Access Repository
Year: 2006

description: One hundred five chestnuts were planted and followed during their first growing season to test the effect of nut size, tree shelter size, and vegetative competition on the growth of the seedlings. Their growth was measured as final seedling height and diameter, stem emergence date and the peak number of leaves on the seedling. The seeds were comprised mostly of third generation backcrossed (15/16) American chestnuts. Chinese chestnuts, Fl chestnuts, and American chestnuts were also planted. Nut size, tree shelter size and vegetative competition had no significant effect on the growth of the seedlings. Genetic lines had the only statistically significant effect on the growth of the chestnuts. The first year seedlings exhibited the same characteristic differences as are typically seen between adults of the two species. Chinese seedlings were shorter and wider than the taller and thinner American seedlings, while the BC3s fell in between the two extremes.
(100269) Maude Mary James
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Hydra II: a faint and compact Milky Way dwarf galaxy found in the Survey of the Magellanic Stellar History
Creators: name: Martin, Nicolas F.
name: Nidever, David L.
name: Besla, Gurtina
name: Olsen, Knut
name: Walker, Alistair R.
name: Vivas, A. Katherina
name: Gruendl, Robert A.
name: Kaleida, Catherine C.
name: Muñoz, Ricardo R.
name: Blum, Robert D.
name: Saha, Abhijit
name: Conn, Blair C.
name: Bell, Eric F.
name: Chu, You-Hua
name: Cioni, Maria-Rosa L.
name: de Boer, Thomas J. L.
name: Gallart, Carme
name: Jin, Shoko
name: Kunder, Andrea
name: Majewski, Steven R.
name: Martinez-Delgado, David
name: Monachesi, Antonela
name: Monelli, Matteo
name: Monteagudo, Lara
name: Noël, Noelia E. D.
name: Olszewski, Edward W.
name: Stringfellow, Guy S.
name: van der Marel, Roeland P.
name: Zaritsky, Denis
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the discovery of a new dwarf galaxy, Hydra II, found serendipitously within the data from the ongoing Survey of the MAgellanic Stellar History (SMASH) conducted with the Dark Energy Camera on the Blanco 4m Telescope. The new satellite is compact (r_h = 68 +/- 11 pc) and faint (M_V = -4.8 +/- 0.3), but well within the realm of dwarf galaxies. The stellar distribution of HydraII in the color-magnitude diagram is well-described by a metal-poor ([Fe/H] = -2.2) and old (13 Gyr) isochrone and shows a distinct blue horizontal branch, some possible red clump stars, and faint stars that are suggestive of blue stragglers. At a heliocentric distance of 134 +/- 10 kpc, Hydra II is located in a region of the Galactic halo that models have suggested may host material from the leading arm of the Magellanic Stream. A comparison with N-body simulations hints that the new dwarf galaxy could be or could have been a satellite of the Magellanic Clouds.
description: 7 pages, 4 figures. Accepted for publication in ApJL. v2: minor corrections, conclusions unchanged
Territorial differences in the spread of COVID-19 in European regions and US counties
Creators: name: Natale, Fabrizio
name: Iacus, Stefano Maria
name: Conte, Alessandra
name: Spyratos, Spyridon
name: Sermi, Francesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Applications (stat.AP)
subject: FOS: Economics and business
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This article explores the territorial differences in the onset and spread of COVID-19 and the excess mortality associated with the pandemic, across the European NUTS3 regions and US counties. Both in Europe and in the US, the pandemic arrived earlier and recorded higher Rt values in urban regions than in intermediate and rural ones. A similar gap is also found in the data on excess mortality. In the weeks during the first phase of the pandemic, urban regions in EU countries experienced excess mortality of up to 68pp more than rural ones. We show that, during the initial days of the pandemic, territorial differences in Rt by the degree of urbanisation can be largely explained by the level of internal, inbound and outbound mobility. The differences in the spread of COVID-19 by rural-urban typology and the role of mobility are less clear during the second wave. This could be linked to the fact that the infection is widespread across territories, to changes in mobility patterns during the summer period as well as to the different containment measures which reverse the causality between mobility and Rt.
ВЛИЯНИЕ БИОПРЕПАРАТА ИНСЕКТИЦИДНОГО ДЕЙСТВИЯ “ФИТОВЕРМ” НА АКТИВНОСТЬ ПРОТЕИНАЗЫ
Creators: name: Дроздова Наталья Ивановна
name: Сорокина Елена Викторовна
Publisher: name: Эпоха науки
Year: 2020
Subjects: фермент
активность
биопрепарат
протеиназа
спектрофотометрический метод
аверсектин С
проростки
озимый рапс

description: Целью настоящей работы являлось изучение влияния различных концентраций биопрепарата “Фитоверм” на активность протеиназы в проростках озимого рапса. Активность протеиназы измерялась на одинадцатые сутки прорастания семени. Результаты, полученные в ходе эксперимента, позволяют сделать вывод о том, что достоверное ингибирующее действие на протеазную активность проростков озимого рапса проявляется при концентрациях действующего вещества аверсектина C составляющих 2,4 мг/г и 3 мг/г. Значения активности фермента снижались соответственно в 1,4 и 2,0 раза по сравнению с контролем. Для экспериментальной группы, обработанной препаратом в рекомендованной концентрации, активность фермента оставалась на уровне контрольных групп. Таким образом, подтверждается необходимость осуществления постоянного контроля влияния биопрепаратов на метаболические процессы в растениях сельскохозяйственного назначения.
Chemical state analysis of reactively sputtered zinc vanadium nitride: The Auger parameter as a tool in materials design
Creators: name: Zhuk, Siarhei
name: Siol, Sebastian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Photoelectron spectroscopy is an important tool for the development of new materials. However, especially for nitride semiconductors, the formation of surface oxides, surface band bending as well as the lack of a suitable charge reference often prevent a robust analysis. Here, we perform a comprehensive chemical state analysis of the Zn-V-N phase space using the Auger parameter concept, which is less sensitive to such uncertainties. Phase-pure Zn2VN3, VN, and Zn3N2 samples are analyzed using XPS/HAXPES after transfer in inert-gas atmosphere. In addition, high-throughput chemical state analysis is performed on combinatorial Zn1-xVxN thin film libraries. The evolution of the Zn Auger parameter in Zn1-xVxN is consistent with previous mapping of the structural and functional properties. Strikingly, the study reveals a narrower stability range of wurtzite Zn1-xVxN than our previous high-throughput XRD screening, highlighting the sensitivity of the measurement approach. The procedures applied here are transferable to many other material systems and could be particularly useful for the high-throughput development of materials with low crystallinity where insights from XRD screenings are limited.
Distributing Multipartite Entanglement over Noisy Quantum Networks
Creators: name: Bugalho, Luís
name: Coutinho, Bruno C.
name: Monteiro, Francisco A.
name: Omar, Yasser
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantum internet aims at harnessing networked quantum technologies, namely by distributing bipartite entanglement between distant nodes. However, multipartite entanglement between the nodes may empower the quantum internet for additional or better applications for communications, sensing, and computation. In this work, we present an algorithm for generating multipartite entanglement between different nodes of a quantum network with noisy quantum repeaters and imperfect quantum memories, where the links are entangled pairs. Our algorithm is optimal for GHZ states with 3 qubits, maximising simultaneously the final state fidelity and the rate of entanglement distribution. Furthermore, we determine the conditions yielding this simultaneous optimality for GHZ states with a higher number of qubits, and for other types of multipartite entanglement. Our algorithm is general also in the sense that it can optimise simultaneously arbitrary parameters. This work opens the way to optimally generate multipartite quantum correlations over noisy quantum networks, an important resource for distributed quantum technologies.
description: Additional metrics for W-states and new numerical proofs of optimality, in comparison to other methods available. Keywords: Quantum Internet, QLANs, Multipartite Entanglement, Entanglement Distribution, Multi-objective Routing, Quantum Networks
(100270) Frank Treharne James
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
АНАТОМО-ДИАГНОСТИЧЕСКИЕ ПРИЗНАКИ КОРНЕВИЩ МЫЛЬНЯНКИ ЛЕКАРСТВЕННОЙ (SAPONARIA OFFICINALIS L.)
Creators: name: Черятова Юлия Сергеевна
Publisher: name: Эпоха науки
Year: 2020
Subjects: Saponaria officinalis L.
корневища
микроскопия
анатомический анализ
анатомо-диагностические признаки.

description: В статье представлены результаты работы по установлению анатомо-диагностических признаков корневищ мыльнянки лекарственной (Saponaria officinalis L.) из семейства Гвоздичные (Caryophyllaceae), которая используется в фармацевтической промышленности для получения сапонинов. Экстракты из корневищ растений применяются в качестве отхаркивающего, желчегонного, мочегонного, противовоспалительного, потогонного и слабительного средства. При проведении анатомического анализа корневищ S. officinalis установлены основные анатомо-диагностические признаки, которые могут быть использованы при проведении идентификации и оценке подлинности лекарственного растительного сырья. Корневище покрыто слоем пробки, за которой располагается коровая паренхима. Паренхима коры корневища рыхлая, крупноклеточная, легко отделяется по линии камбия от древесины. Камбиальная зона в корневище хорошо выражена. Внутрь от камбия в старых частях корневища располагалось сплошное кольцо лигнифицированных элементов древесины. Ксилемные группы на поперечных срезах узлов корневища были вытянуты в радиальном направлении. В составе ксилемы корневища были обнаружены спиральные, сетчатые, лестничные, сетчато-спиральные, пористые сосуды. Исследования показали, что корневище растения характеризовалось непучковым типом анатомического строения стебля. В молодых корневищах растений центральная часть была занята сердцевиной, состоящей из крупноклеточной неспециализированной паренхимы. Паренхима сердцевины зрелого корневища со временем разрушалась, и на ее месте формировалась центральная полость. Сапонины корневищ мыльнянки были локализованы в клетках крупноклеточной основной паренхимы коры и обнаруживались под микроскопом в виде светло-бежевых бесформенных комочков. Качественная реакция на присутствие сапонинов в растении дала положительные результаты: водный отвар корневищ мыльнянки при встряхивании образовывал обильную и устойчивую пену. Полученные сведения могут послужить основой для разработки раздела «Микроскопия» нормативной документации.
The Creation of the Atomic Bomb
Creators: name: Beaver, Jeb
Publisher: name: Maryland Shared Open Access Repository
Year: 2010

description: The creation of the atomic bomb is one of the most extraordinary events in world history. The purpose of this paper is to explain how the atomic bomb was created. The first part of the paper explains the scientific advancement in nuclear physics. The scientific advancement was not just one scientist, it was a team of scientist working independently but advancing each others discoveries respectively. The next section of the paper will examine the setting up of the Manhattan Project. The Manhattan Project was a two billion dollar operation led by General Groves and Dr. J. Robert Oppenheimer. The Manhattan Project consisted of facilities and laboratories all over the United States. The last section of the paper is titled the search for uranium. The United States had a very difficult problem, they needed uranium. The United States eventually brokered a deal with Belgians who controlled the Congo, which had the largest supply of uranium at the time. The creation of the atomic bomb is monumental because every piece fell in the correct place at the exact right time in order for it creation to take place.
The targum (1925:Sept. 16 - 1925:Sept. 30)
Creators: name: No Name Supplied
Publisher: name: Targum Association
Year: 1925

description: Some University historians indicate that the Targum was first published as an annual in 1867, but of this we have no extant evidence. In January 1869, the Targum as we now know it, made its appearance as a monthly paper that concerned itself with student “literary contributions” and college news as well as serving as a vehicle for bringing news to alumni and the general public. The newspaper, which originally was for sale, varied in frequency over the years as did its title (The Targum, Rutgers Targum, Rutgers Daily Targum, and Daily Targum). The newspaper has continuously been published since 1869 with the exception of 19 months during the second world war, between February 1944 and October 1945. The Targum was published by the students of Rutgers College, and later Rutgers University—New Brunswick represented through the years as the Targum Association, Rutgers Targum Association, and Rutgers College Targum. As a student organization, the Targum operated under the oversight of the dean of students and student government but in October 1980, the Targum became an independent college paper.
Relationship of global assessment of change to AUSCAN and pinch and grip strength among individuals with hand osteoarthritis
Creators: name: Kraus, V.B.
name: Allen, K.D.
name: Jordan, J.M.
name: Renner, J.B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: OBJECTIVE: This study assessed the utility and construct validity of a new patient global assessment of symptom change for hand osteoarthritis (OA) by examining its associations with change over time in grip strength, pinch strength, and AUStralian CANadian Osteoarthritis Hand Index (AUSCAN). METHODS: Participants (N=531, 80% female, mean age=68) were part of a study on the Genetics of Generalized Osteoarthritis (GOGO) and completed two assessments (average 4 years apart). At the second assessment, participants described change in their right and left hand pain, aching, and stiffness on a 15-point scale with descriptors ranging from "Great deal worse" to "Great deal better". Linear regression models examined associations of global change scores with changes in hand strength and AUSCAN, controlling for age, gender, number of hand joints with OA, and time between assessments. RESULTS: Both right and left hand global assessment of change scores were significantly associated with change in AUSCAN, grip strength, and right hand pinch strength (P<0.05), and approached significance for left hand pinch strength (P=0.06). The strongest associations were between global change scores and AUSCAN change (right hand: beta=0.29, P<0.001; left hand: beta=0.27, P<0.001). Associations of change scores with grip and pinch strength were stronger among participants with greater radiographic OA severity at baseline. CONCLUSION: Results support the validity of this new global assessment of symptom change. This measure is particularly useful for assessing change over time when no baseline data are available. Additional research should examine this measure's responsiveness in the context of clinical trials.
Interference Prediction in Mobile Ad Hoc Networks with a General Mobility Model
Creators: name: Cong, Yirui
name: Zhou, Xiangyun
name: Kennedy, Rodney A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In a mobile ad hoc network (MANET), effective prediction of time-varying interferences can enable adaptive transmission designs and therefore improve the communication performance. This paper investigates interference prediction in MANETs with a finite number of nodes by proposing and using a general-order linear model for node mobility. The proposed mobility model can well approximate node dynamics of practical MANETs. In contrast to previous studies on interference statistics, we are able through this model to give a best estimate of the time-varying interference at any time rather than long-term average effects. Specifically, we propose a compound Gaussian point process functional as a general framework to obtain analytical results on the mean value and moment-generating function of the interference prediction. With a series form of this functional, we give the necessary and sufficient condition for when the prediction is essentially equivalent to that from a Binomial Point Process (BPP) network in the limit as time goes to infinity. These conditions permit one to rigorously determine when the commonly used BPP approximations are valid. Finally, our simulation results corroborate the effectiveness and accuracy of the analytical results on interference prediction and also show the advantages of our method in dealing with complex mobilities.
description: 14 pages, 9 figures, accepted for publication in IEEE Transactions on Wireless Communications
(100266) Fanny James
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Individual Planning in Agent Populations: Exploiting Anonymity and Frame-Action Hypergraphs
Creators: name: Sonu, Ekhlas
name: Chen, Yingke
name: Doshi, Prashant
Publisher: name: arXiv
Year: 2015
Subjects: subject: Multiagent Systems (cs.MA)
subject: Artificial Intelligence (cs.AI)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: Interactive partially observable Markov decision processes (I-POMDP) provide a formal framework for planning for a self-interested agent in multiagent settings. An agent operating in a multiagent environment must deliberate about the actions that other agents may take and the effect these actions have on the environment and the rewards it receives. Traditional I-POMDPs model this dependence on the actions of other agents using joint action and model spaces. Therefore, the solution complexity grows exponentially with the number of agents thereby complicating scalability. In this paper, we model and extend anonymity and context-specific independence -- problem structures often present in agent populations -- for computational gain. We empirically demonstrate the efficiency from exploiting these problem structures by solving a new multiagent problem involving more than 1,000 agents.
description: 8 page article plus two page appendix containing proofs in Proceedings of 25th International Conference on Autonomous Planning and Scheduling, 2015
БИОТЕХНОЛОГИЧЕСКИЕ АСПЕКТЫ ИСПОЛЬЗОВАНИЯ ГОЛУБИКИ
Creators: name: Флюрик Елена Андреевна
name: Бушкевич Надежда Викторовна
Publisher: name: Эпоха науки
Year: 2020
Subjects: Vaccinium
плоды и листья голубики
биологически активные вещества.

description: Голубика (Vaccinium) ягодный кустарник, широко культивируемый во всех областях Республики Беларусь. Плоды и листья голубики весьма богаты биологически активными веществами (флавоноиды, антоцианы, дубильные, углеводы, органические кислоты, сахара, витамины и другие вещества, а также микрои макроэлементы). В работе представлены данные по разработке комплексной технологии использования голубики, которая включает переработку листьев, плодов и веток кустарника. Экстракт из плодов и листьев голубики предлагается использовать в косметической отрасли (крема, шампуни), жмых плодов – в пищевой промышленности (посыпок для конфет), листья – для производства фиточая, а ветки – для получения кормовой добавки животным. Таким образом, при использовании всего вышеуказанного растительного сырья, можно говорить о наиболее полном использовании потенциала кустарника
title: Formation of pure τ-phase in Mn–Al–C by fast annealing using spark plasma sintering
Creators: name: Maccari, F.
name: Aubert, A.
name: Ener, S.
name: Bruder, E.
name: Radulov, I.
name: Skokov, K.
name: Gutfleisch, O.
Publisher: name: Springer Nature
Year: 2024

description: Mn–Al–C is intended to be one of the ‘‘gap magnets’’ with magnetic performance in-between ferrites and Nd-Fe-B. These magnets are based on the metastable ferromagnetic τ-phase with L1₀ structure, which requires well controlled synthesis to prevent the formation of secondary phases, detrimental for magnetic properties. Here, we investigate the formation of τ-phase in Mn–Al–C using Spark Plasma Sintering (SPS) and compare with conventional annealing. The effect of SPS parameters (pressure and electric current) on the phase formation is also studied. Single τ-phase is obtained for annealing 5 min at 500°C with SPS. In addition, we show that the initial grain size of the τ-phase is influencing the τ-phase transformation and fraction at a given annealing condition, independently of the annealing method used. A faster transformation was observed for smaller initial ϵ-grains. The samples obtained by SPS showed comparable magnetic properties with the conventional annealed ones, reaching coercivity of 0.18 T and saturation magnetization of 114 Am ²/kg in the optimized samples. The similarity in coercivity is related to the microstructure, as we reveal the presence of structure defects like twin boundaries and dislocations in both materials.
The Varchenko-Gel'fand Ring of a Cone
Creators: name: Dorpalen-Barry, Galen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary: 52C35, Secondary: 05Axx, 52C40

description: For a hyperplane arrangement in a real vector space, the coefficients of its Poincaré polynomial have many interpretations. An interesting one is provided by the Varchenko-Gel'fand ring, which is the ring of functions from the chambers of the arrangement to the integers with pointwise addition and multiplication. Varchenko and Gel'fand gave a simple presentation for this ring, along with a filtration and associated graded ring whose Hilbert series is the Poincaré polynomial. We generalize these results to cones defined by intersections of halfspaces of some of the hyperplanes and prove a novel result for the Varchenko-Gel'fand ring of an arrangement: when the arrangement is supersolvable the associated graded ring of the arrangement is Koszul.
description: Improved exposition, version to appear in Journal of Algebra
Activity and Disengagement in the Aged
Creators: name: Bechter, Nancy K.
Publisher: name: Maryland Shared Open Access Repository
Year: 1974

description: This thesis attempts to further understand the psycho-social adjustment of our senior citizens. It will include the traditional literature review, an analysis of the results of a questionnaire relevant to engagement and life satisfaction among the elderly (administered to approximately 300 senior citizens), and finally a summarizing statement with implications as to the theories' future significance. It is hoped that as a result of this academic venture, a vision may indeed be caught as to how the environment of the elderly may be "humanized."
ОЦЕНКА ВЛИЯНИЯ ЛОКОМОТИВНОГО ДЕПО НА СЕЛИТЕБНУЮ ЗОНУ ГОРОДА
Creators: name: Батанина Елена Владимировна
Publisher: name: Эпоха науки
Year: 2020
Subjects: загрязнение
атмосферный воздух
физико-химический анализ
предельно-допустимые концентрации.

description: В городах и промышленно развитых центрах наиболее наглядно демонстрируется все разнообразие отрицательных последствий антропогенного воздействия на окружающую среду. В данной работе рассматривается локомотивное депо, расположенное в г. Иланск Красноярского края, как источник загрязнения атмосферы. Приведены результаты исследований уровней загрязнения атмосферного воздуха в жилой зоне и на границе санитарно защитной зоны предприятия. При анализе полученных результатов расчетных уровней загрязнения атмосферного воздуха превышений ПДК не выявлено.
(100268) Edith James
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
CondLaneNet: a Top-to-down Lane Detection Framework Based on Conditional Convolution
Creators: name: Liu, Lizhe
name: Chen, Xiaohao
name: Zhu, Siyu
name: Tan, Ping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Modern deep-learning-based lane detection methods are successful in most scenarios but struggling for lane lines with complex topologies. In this work, we propose CondLaneNet, a novel top-to-down lane detection framework that detects the lane instances first and then dynamically predicts the line shape for each instance. Aiming to resolve lane instance-level discrimination problem, we introduce a conditional lane detection strategy based on conditional convolution and row-wise formulation. Further, we design the Recurrent Instance Module(RIM) to overcome the problem of detecting lane lines with complex topologies such as dense lines and fork lines. Benefit from the end-to-end pipeline which requires little post-process, our method has real-time efficiency. We extensively evaluate our method on three benchmarks of lane detection. Results show that our method achieves state-of-the-art performance on all three benchmark datasets. Moreover, our method has the coexistence of accuracy and efficiency, e.g. a 78.14 F1 score and 220 FPS on CULane. Our code is available at https://github.com/aliyun/conditional-lane-detection.
ИЗУЧЕНИЕ СОДЕРЖАНИЯ МЕДИ, КОБАЛЬТА И СВИНЦА В ДОННЫХ ОТЛОЖЕНИЯХ ВОДОЕМОВ Г. ГОМЕЛЯ
Creators: name: Макаренко Татьяна Викторовна
name: Никитин Александр Николаевич
name: Ерофеенко Максим Андреевич
Publisher: name: Эпоха науки
Year: 2020
Subjects: тяжелые металлы
донные отложения
водные экосистемы
свинец
кобальт
медь.

description: ряд содержание металлов в донных отложениях водоёмов имеет следующий вид Cu>Pb>Co. Поверхностный сток г. Гомеля оказывает влияние на экосистему р. Сож, о чём свидетельствует увеличенное содержание тяжёлых металлов в отложениях реки за чертой города в сравнение с участком до принятия городских сточных вод. Высокий уровень загрязнения донных отложений тяжёлыми металлами характерен для участка ниже города и оз. У-образное. Низкий уровень загрязнения характерен для оз. Шапор, оз. Малое, хотя водоёмы испытывают значительную антропогенную нагрузку, так же низкий уровень отмечен в оз. Володькино. Фоновый водоём, который ранее использовался в качестве эталона, перестал быть таковым, так как концентрация некоторых тяжёлых металлов в нём выше, чем в других изучаемых водоёмах, испытывающих более значительную антропогенную нагрузку. Вследствие этого факта необходимо усилить мониторинг за данным водным объектом.
СОДЕРЖАНИЕ ЦИНКА В МЯГКИХ ТКАНЯХ ПРУДОВИКА ОБЫКНОВЕННОГО В ВОДНЫХ ЭКОСИСТЕМАХ Г.ГОМЕЛЯ
Creators: name: Макаренко Татьяна Викторовна
name: Никитин Александр Николаевич
name: Камеников Артем Владимирович
Publisher: name: Эпоха науки
Year: 2020
Subjects: тяжелые металлы
брюхоногие моллюски
мягкие ткани
биоиндикация
водные экосистемы

description: содержание цинка у особей в фоновом водоеме возросло в 1,2 раза. Данный факт свидетельствует о том, что в компонентах фонового водоема возросло количество биологически-доступных форм цинка, способного усваиваться различными живыми организмами. Скорее всего, это связано с резко изменившимися физико-химическими условиями состояния водной экосистемы. Низкое содержание цинка у прудовиков оз. Дедно может быть как следствием того, что в водоеме цинк находится в малодоступной для биологических объектов форме, так и тем, что включение механизма блокировки препятствует поступлению излишнего количества тяжелых металлов в организм моллюсков данного водоема.
Comparative evaluation of three semi-quantitative radiographic grading techniques for knee osteoarthritis in terms of validity and reproducibility in 1759 X-rays: report of the OARSI–OMERACT task force
Creators: name: Hawker, G.
name: Lam, M.-A.
name: Renner, J.B.
name: Jordan, J.M.
name: Lopez-Olivo, M.A.
name: Gossec, L.
name: Maillefert, J.F.
name: Mazzuca, S.A.
name: Dougados, M.
name: Suarez-Almazor, M.E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: OBJECTIVE: The objective of this work was to compare the measurement properties of three categorical X-ray scoring methods of knee osteoarthritis (OA), both on semiflexed and extended views. METHODS: In data obtained from trials and cohorts, X-rays were graded using Kellgren and Lawrence (KL), the OA Research Society International (OARSI) joint space narrowing score, and measurement of joint space width (JSW). JSW was analyzed as a categorical variable. Construct validity was assessed through logistic regression between X-ray stages and Western Ontario and McMaster Universities OA Index. Inter-observer reliability was assessed in 50 subjects for extended views by weighted kappa. Intra-observer reliability and sensitivity to change were assessed separately for extended and semiflexed views in 50 patients who had both views performed, over a 30-month interval, by weighted kappa and standardized response mean (SRM). RESULTS: Extended views were available from three trials and two cohorts (1759 X-rays), including one trial in which both extended and semiflexed views (antero-posterior) were obtained. Correlation with clinical parameters was low for the three scoring methods, except for the single community-based cohort. Inter-rater reliability was higher for categorical JSW in extended views (kappa, 0.86 vs 0.56 and 0.48 for KL and OARSI, respectively). Intra-rater reliability was higher for categorical JSW, both in extended views (0.83 vs 0.61 and 0.71) and in semiflexed views (0.89 vs 0.50 and 0.67). Sensitivity to change was also higher for categorical JSW, particularly in semiflexed views (SRM, 0.49 vs 0.22 and 0.34). CONCLUSION: These results indicate categorical JSW, in particular on semiflexed views, may be the preferred method to evaluate structural severity in knee OA clinical trials.
title: Modelling abrupt shifts of fish recruitment and growth
Creators: name: Tang, Xiaozhuo
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: Regime shifts in marine ecosystems may result in abrupt changes in fish population dynamics, and not accounting for such shifts could have potentially large and far-reaching consequences for fisheries assessment and management decisions. In this work, I develop a methodology to model abrupt shifts in recruitment and somatic growth, which are two key processes in controlling fish population dynamics. In Chapter 1, I review the impacts of regime shifts on fish populations and find that abrupt shifts in productivity are very common among global fish species. In Chapter 2, I introduce the approach of modelling recruitment and regime shifts. The methodology includes a hidden Markov model for the unobserved environmental regimes, a stock-recruitment (SR) model for the regime-specific SR function, the maximum likelihood approach for evaluating the marginal likelihood, and the corrected Akaike information criterion (AICc) for the model selection. I conduct simulation tests to evaluate the performance of the method and results indicate that our method can objectively identify the unobserved environmental regimes and estimate regime-specific SR model parameters well. In Chapter 3, I extend the hidden Markov approach to model abrupt shifts in fish growth using a von Bertalanffy growth model (VBGM). Simulation results demonstrate that the method can accurately identify abrupt shifts in growth and estimate regime-specific growth parameters well. I apply both the hidden Markov stock-recruit model (HMSM) and the hidden Markov growth model (HMGM) to an Atlantic cod stock on the southern Grand Bank off Newfoundland, Canada. Results indicate that the cod stock has two distinct recruitment regimes and two distinct growth regimes, and our method identify one abrupt shift in recruitment and four abrupt shifts in somatic growth. I consider the methodology proposed in this thesis as a useful tool to model regime-like changes of fish population dynamics. In Chapter 4, I discuss the management implications of abrupt shifts in fish population dynamics and present the current challenges of managing fish stocks under marine ecosystem regime shifts. I consider the conditions under which our method might be useful to better assess and manage fish populations under changing environmental regimes.
Pd(0) nanoparticle immobilized on cyclodextrin-nanosponge-decorated Fe2O3@SiO2 core-shell hollow sphere: An efficient catalyst for C–C coupling reactions
Creators: name: Heravi, Majid Mommahed
name: Samahe Sadjadi
name: Malmir, Masoumeh
Publisher: name: figshare
Year: 2020
Subjects: subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: FOS: Chemical sciences
subject: 30502 Natural Products Chemistry
subject: 30205 Non-metal Chemistry
subject: Nuclear Chemistry
subject: 30503 Organic Chemical Synthesis
subject: 30303 Optical Properties of Materials
subject: Organic Chemistry
subject: 30599 Organic Chemistry not elsewhere classified
subject: 30504 Organic Green Chemistry

description: Amine-functionalized core-shell Fe2O3 hollow spheres (h-Fe2O3@SiO2–N) were decorated with Cl-functionalized cyclodextrin nanosponge, CDNS-Cl, covalently. The resulting hybrid system, h-Fe2O3@SiO2–CDNS, was then used as a magnetically separable support for immobilization of Pd(0) nanoparticles, derived from a bio-based approach. The obtained catalyst, Pd@h-Fe2O3@SiO2–CDNS, was characterized by using SEM/EDS, TEM, XRD, BET, ICP-AES, FTIR, TGA and VSM. Moreover, the catalytic activity of Pd@h-Fe2O3@SiO2–CDNS was confirmed for ligand and copper-free Heck and Sonogashira coupling reactions in aqueous media. Comparison of the catalytic activity of the Pd@h-Fe2O3@SiO2–CDNS and Pd@h-Fe2O3@SiO2, established superior catalytic activity of former indicating the role of CDNS in catalysis. Furthermore, the catalytic activity and recyclability of Pd@h-Fe2O3@SiO2–CDNS was higher than that of Pd@CDNS. The catalyst could be successfully recycled for several consecutive reaction times with slight loss of the catalytic activity. The ICP-AES analysis confirmed that the leaching of Pd nanoparticles was negligible upon each reaction cycle.
Active power control of wind farms: an instantaneous approach on waked conditions
Creators: name: Silva, Jean Gonzalez
name: Doekemeijer, Bart Matthijs
name: Ferrari, Riccardo
name: van Wingerden, Jan-Willem
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a closed-loop controller for wind farms to provide active power control services using a high-fidelity computational fluid dynamics based wind plant simulator. The proposed design enhances power tracking stability and allows for simple understanding, where each turbine is considered as a pure time-delay system. The paper investigates the control performance with different nominal power distributions in a fully waked condition and limited power availability. Results demonstrate the improvement in power production obtained by closing the control loop, compared to greedy operation. Additionally, power tracking capabilities are enhanced with a nominal power distribution favored by axial-induction, as well as the occurrence of turbine saturation and the distribution of loads.
description: 10 pages, 8 figures, This work has been accepted to TORQUE 2022 for publication under a Creative Commons Licence CC-BY-NC-ND
Sterile neutrino search with KATRIN - modeling and design-criteria of a novel detector system
Creators: name: Korzeczek, Marc
Publisher: name: Karlsruhe
Year: 2020
Subjects: sterile neutrino
neutrino physics
astroparticle physics
KATRIN
TRISTAN
silicon drift detector

description: A fundamental phenomenon in particle physics is the absence of massive objects in our universe: Dark Matter. A promising candidate that could explain these observations are sterile neutrinos with a mass of several $\mathrm{keV}/c^2$. While it is presumed that sterile neutrinos do not interact via the weak force, they, due to their mass, still partake in neutrino oscillation. Consequently, it is experimentally possible to investigate their imprint in beta-decay experiments, such as the Karlsruhe tritium neutrino experiment (KATRIN). A dedicated search for sterile neutrinos however ensues a steep increase in the electron rate and thus requires the development of a new detector system, the TRISTAN detector. In addition, as the imprint of sterile neutrinos is presumably $<10^{-7}$, systematic uncertainties have to be understood and modeled with high precision. In this thesis systematics prevalent at the detector and spectrometer section of KATRIN will be discussed and their impact to a sterile neutrino sensitivity illuminated. The derived model is compared with data of the current KATRIN detector and with characterization measurements of the first TRISTAN prototype detectors, seven pixel silicon drift detectors. It is shown that the final TRISTAN detector requires a sophisticated redesign of the KATRIN detector section. Moreover, the combined impact of the back-scattering and electron charge-sharing systematic lead to an optimal detector magnetic field of $B_\mathrm{det}=0.7\dots0.8\,\mathrm{T}$, which translates to a pixel radius of $r_\mathrm{px}=1.5\dots1.6\,\mathrm{mm}$. The sensitivity analysis discusses individual effects as well as the combined impact of systematic uncertainties. It is demonstrated that the individual effects can be largely mitigated by shifting the tritium \bd energy spectrum above the \bd endpoint. In contrast, their combined impact to the sensitivity leads to an overall degradation and only mixing amplitudes of $\sin^2\theta_4<3\cdot10^{-6}$ would be reachable, even in an optimized case with very low and homogeneous detection deadlayer $z_\mathrm{dl}=20\pm1\,\mathrm{nm}$. Assessing sterile neutrino mixing amplitudes of $\sin^2\theta_4<10^{-7}$ thus requires disentangling of systematic effects. In a future measurement this could be for example achieved by vetoing detector events with large signal rise-times and small inter-event times.
(100264) Jane Williams
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Partial Matchings Induced by Morphisms between Persistence Modules
Creators: name: Gonzalez-Diaz, R.
name: Soriano-Trigueros, M.
name: Torras-Casas, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: Computational Geometry (cs.CG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 55N31, 13P20

description: We study how to obtain partial matchings using the block function $\mathcal{M}_f$, induced by a morphism $f$ between persistence modules. $\mathcal{M}_f$ is defined algebraically and is linear with respect to direct sums of morphisms. We study some interesting properties of $\mathcal{M}_f$, and provide a way to obtain $\mathcal{M}_f$ using matrix operations.