cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Αξιολόγηση ποιοτικών χαρακτηριστικών και δυνατότητες διαχωρισμού σιδηρομεταλλεύματος από την περιοχή Ρέντα-Αρολιθίου (Ν. Ρεθύμνου)
title: Quality characteristics and potential seperation of iron ore from Renta-Aroliti area (Rethymnon)
Creators: name: Βλασιαδη Ελευθερια
Publisher: name: Technical University of Crete
Year: 2018

description: Η παρούσα διπλωματική εργασία έχει ως σκοπό την αξιολόγηση των ποιοτικών χαρακτηριστικών και τις δυνατότητες εμπλουτισμού με βαρυτομετρικό και μαγνητικό διαχωρισμό του σιδηρομεταλλεύματος της περιοχής Ρέντα-Αρολίθι (Νομός Ρεθύμνου).
Στην περιοχή Ρέντα-Αρολίθι υπάρχει σιδηρομετάλλευμα που απαντάται με μορφή φακοειδών σωμάτων ή με μορφή φλεβών πάνω στη ζώνη επαφής Φυλλιτών-Χαλαζιτών. Το μετάλλευμα είναι λειμωνιτικού τύπου με σπογγώδη υφή. Τα κύρια ορυκτολογικά συστατικά του σιδηρομεταλλεύματος είναι γκαιτίτης, χαλαζίας και δευτερευόντως αιματίτης, γραφίτης και σιδηροπυρίτης. Η δομή του μεταλλεύματος χαρακτηρίζεται γενικά ως εμπλεκτική διακοκκώδης. Η χημική εξέταση των αρχικών δειγμάτων έδειξε ότι η συγκέντρωση του Fe2O3 κυμαίνεται από 7.16 % έως 49.98%, ενώ του SiO2 κυμαίνεται από 24.43 % έως 77.89%. Η χημική εξέταση των κοκκομετρικών κλασμάτων έδειξε ότι η συγκέντρωση του Fe2O3 κυμαίνεται από 17.02 % έως 36.68 %, ενώ η συγκέντρωση του SiO2 κυμαίνεται από 42.18 % έως 66.39 %.
Μετά από διαδικασία θραύσης με σιαγωνωτό σπαστήρα και κοσκίνισης του αρχικού δείγματος προκύπτουν κοκκομετρικά κλάσματα (-8+4 mm), (-4+1 mm), (-1+0.250 mm), (-0.250+0.063 mm) και (-0.063 mm), που χρησιμοποιήθηκαν για την πραγματοποίηση των μεθόδων εμπλουτισμού.
Για τις δοκιμές εμπλουτισμού χρησιμοποιήθηκαν οι μέθοδοι του βαρυτομετρικού και του μαγνητικού διαχωρισμού. Στη συνέχεια τα αποτελέσματα αξιολογήθηκαν μέσω χημικών και ορυκτολογικών αναλύσεων και με μικροσκοπική παρατήρηση.
Τα αποτελέσματα της  δοκιμής του βαρυτομετρικού διαχωρισμού του σιδηρούχου μεταλλεύματος έδειξαν ότι μεγαλύτερη συγκέντρωση σιδήρου σημειώθηκε στα βαριά προϊόντα των δυο χονδρότερων κοκκομετρικών κλασμάτων (-8+4 mm) και (-4+1 mm) με ποσοστό 67.71% και 66.77%, αντίστοιχα. Μεγαλύτερο ποσοστό SiO2 σημειώθηκε στα ελαφριά προϊόντα των λεπτότερων κοκκομετρικών κλασμάτων (-1+0.250 mm) και (-0.250+0.063 mm) με ποσοστά 79.31% και 74.77%, αντίστοιχα.
Τα αποτελέσματα της δοκιμής του μαγνητικού διαχωρισμού του σιδηρούχου μεταλλεύματος έδειξαν ότι μεγαλύτερη συγκέντρωση σιδήρου σημειώθηκε στο μαγνητικό προϊόν 1 στα δύο μικρότερα κοκκομετρικά κλάσματα (-1+0.250 mm) και (-0.250+0.063mm) με ποσοστό 63.01% και 53.18% αντίστοιχα.
Γενικά οι δοκιμές εμπλουτισμού έδειξαν ότι στο βαρυτομετρικό διαχωρισμό καλύτερη απόδοση ως προς την περιεκτικότητα είχαμε στα  δύο πρώτα χονδόκοκκα κλάσματα ενώ ως προς την κατανομή καλύτερη απόδοση είχαμε στα δύο τελευταία (λεπτόκοκκα) κλάσματα. Στο μαγνητικό διαχωρισμό καλύτερη απόδοση ως προς τη χημική ανάλυση είχαμε στο κλάσμα (-1+0.250 mm) ενώ ως προς την κατανομή είχαμε στο λεπτότερο κλάσμα.
title: Проектирование общественных пространств крупных торговых центров с использованием оптических иллюзий
Creators: name: ELS IPR BOOKS
Publisher: name: Самарский государственный технический университет, ЭБС АСВ
Year: 2020

description: Содержит материал для обучающихся по направлению 54.03.01 «Дизайн» (профиль – «Дизайн среды»). Основной целью является помощь студентам в изучении и освоении курса дисциплины «Проектирование в дизайне среды». Материалы представляют большой интерес для практикующих архитекторов и дизайнеров, а также для широкого круга специалистов, работающих в сфере организации торговли: маркетинг, мерчандайзинг, реклама.
Time Driven Subwavelength Focusing with Negative Refraction
Creators: name: Dubois, M.
name: Bossy, E.
name: Enoch, S.
name: Guenneau, S.
name: Lerosey, G.
name: Sebbah, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Flat lens concept based on negative refraction proposed by Veselago in 1968 has been mostly investigated in monochromatic regime. It was recently recognized that time development of the super-lensing effect discovered in 2000 by Pendry is yet to be assessed and may spring surprises: Time-dependent illumination could improve the spatial resolution of the focusing. We investigate dynamics of flexural wave focusing by a 45\degre-tilted square lattice of circular holes drilled in a Duraluminium plate. Time-resolved experiments reveal that the focused image shrinks with time below diffraction limit, with a lateral resolution increasing from 0.8 $λ$ to 0.35 $λ$, whereas focusing under harmonic excitation remains diffraction limited. Modal analysis reveals the role in pulse reconstruction of radiating lens resonances, which repeatedly self-synchronize at the focal spot to shape a super-oscillating field.
description: 5 figures
Portrait Bust of Henry Ogden Avery (1852-1890)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: Portrait bust placed on an Ionic capital. The body is represented to just below the chest, the arms merely as stubs. The subject turns his face slightly to the observers left, his gaze even more so. He is dressed in wing collar, stick pin, and double breasted suit. His hair is parted in the center.
title: Проектный расчет магистрального газопровода
Creators: name: ELS IPR BOOKS
Publisher: name: Самарский государственный технический университет, ЭБС АСВ
Year: 2020

description: Рассмотрены вопросы проектирования линейного участка магистрального газопровода под конкретные условия эксплуатации. Изложена методика гидравлического, теплового и прочностного расчетов линейного участка газопровода. На основе экономического обоснования проводится выбор технологической схемы компрессорного цеха, рассчитываются режимные параметры его оборудования. Предназначено студентам, обучающимся по направлениям 21.03.01 и 21.04.01 «Нефтегазовое дело», по профилям подготовки «Эксплуатация и обслуживание объектов транспорта и хранения нефти, газа и продуктов переработки» и «Трубопроводный транспорт углеводородов», всех форм обучения. Необходимо при выполнении курсового и дипломного проектирования. Также может быть использовано при обучении специалистов на курсах повышения квалификации.
Local oscillator fluctuation opens a loophole for Eve in practical continuous-variable quantum-key-distribution systems
Creators: name: Ma, Xiang-Chun
name: Sun, Shi-Hai
name: Jiang, Mu-Sheng
name: Liang, Lin-Mei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the security of practical continuous-variable quantum key distribution implementation with the local oscillator (LO) fluctuating in time, which opens a loophole for Eve to intercept the secret key. We show that Eve can simulate this fluctuation to hide her Gaussian collective attack by reducing the intensity of the LO. Numerical simulations demonstrate that, if Bob does not monitor the LO intensity and does not scale his measurements with the instantaneous intensity values of LO, the secret key rate will be compromised severely.
description: 8 pages, 5 figures
Effective hydrodynamics of black D3-branes
Creators: name: Emparan, Roberto
name: Hubeny, Veronika E
name: Rangamani, Mukund
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The long-wavelength effective field theory of world-volume fluctuations of black D3-branes is shown to be a hydrodynamical system to leading order in a gradient expansion. We study the system on a fiducial `cutoff' surface: the fluctuating geometry imprints its dynamics on the surface via an induced stress tensor whose conservation encapsulates the hydrodynamical description. For a generic non-extremal D3-brane, as we move our cutoff surface from the asymptotically flat near-boundary region to the near-horizon region, this hydrodynamical system interpolates between a non-conformal relativistic fluid and a non-relativistic incompressible fluid. We also consider the dependence on the deviation from extremality of the D3-branes. In the near-extremal case we recover the description in terms of a conformal relativistic fluid encountered in the AdS/CFT context. We argue that this system allows us therefore to explore the various connections that have hitherto been suggested relating the dynamics of gravitational systems and fluid dynamics. In particular, we go on to show that the blackfold effective field theory approach allows us to capture this hydrodynamical behaviour and moreover subsumes the constructions encountered in the fluid/gravity correspondence and the black hole membrane paradigm, providing thereby a universal language to explore the effective dynamics of black branes.
description: 36 pages, 4 figures (pdf). v2: added refs. v3: typos fixed
Ethical and Psychosocial Considerations in Informing HIV-Exposed Uninfected Children That They Were Exposed to HIV and Antiretroviral Medications In Utero
Creators: name: Klitzman, Robert L.
name: Mellins, Claude
name: Philbin, Morgan M.
name: Abrams, Elaine J.
Publisher: name: Columbia University
Year: 2016
Subjects: Bioethics
HIV infections--Psychological aspects
HIV infections--Social aspects
Antiretroviral agents
Child development

description: We build on what is known about the potential long-term health effects of perinatal antiretroviral medication exposure to examine ethical and psychosocial issues associated with disclosure by applying lessons from other health conditions, theories of child and adolescent development and rights, and the relevant literature and legal contexts. We present 2 cases to highlight potential issues; apply a bioethical framework that includes principles of autonomy, beneficence, nonmaleficence, and justice; and explore other factors, including the current uncertainty about these exposures’ possible long-term health risks. This ethical framework can help clinicians and researchers consider and balance relevant concerns in deciding whether to inform offspring of HIV and related exposures.
title: Проекционное черчение в КОМПАС-3D
Creators: name: ELS IPR BOOKS
Publisher: name: Самарский государственный технический университет, ЭБС АСВ
Year: 2020

description: Представлены задания по проекционному черчению, предназначенные для выполнения чертежей на практических занятиях и для самостоятельной работы студентов. Для каждой темы приведены краткие теоретические обоснования, примеры построения чертежей, выполненных в КОМПАС-График, контрольные вопросы и варианты индивидуальных заданий. Материал разработан в соответствии с рабочими программами по инженерной графике и может быть использован студентами следующих направлений: 13.03.02; 18.03.01; 20.03.01.
Reputational and Integrity Due Diligence on Investors
Creators: name: Columbia Center On Sustainable Investment
name: Kroll
Publisher: name: Columbia University
Year: 2019
Subjects: Economic development
Sustainable development
Sustainable development--Government policy
Sustainable development--Decision making

description: Before deciding to invest, companies and investors will perform background research on the uncertainties and risks associated with the proposed investment. For natural resource projects, there are risks around geology, market and price developments, construction delays, operations, regulatory changes, political disruptions, and reputational issues. Feasibility studies and due diligence assessments aim to better understand these risks, reduce uncertainty where possible and be better prepared to manage them. Governments too should understand the risks that are associated with the proposed investments and get to know the investors before entering into negotiations or signing contracts. This is particularly important for long-term agreements or ‘high stake’ investments such as natural resource or infrastructure projects, where financial, environmental or social externalities are high. But oftentimes governments do not perform due diligence assessments. The agencies in charge of attracting investment are often judged on the quantity and not the quality of investment, and due diligence can be time-intensive and costly. In its trainings, CCSI has long advocated for governments to perform due diligence on prospective investors. However, little guidance exists on how governments can go about it. Therefore, CCSI has teamed up with Kroll, a leading global provider of risk solutions that regularly performs Reputational and Integrity Due Diligence (RIDD) on investors, to develop a guide on (1) how to decide when to conduct RIDD, (2) how to conduct basic checks, and (3) when and how to engage with third parties to conduct a RIDD. This is part of a broader ongoing project of CCSI that seeks to support host governments and civil society to better assess the quality of investments and underlying investors. For more information and tools available to support governments with assessing, planning, negotiating, implementing, and monitoring large-scale investments please visit our negotiation support portal. Our “company personalities” interview series may also be of interest to understand some of the drivers of investor negotiation strategies.
title: Υποσύστημα πελάτη και επικοινωνία πελάτη-εξυπηρετητή στο αντικειμενοστρεφές σύστημα διαχείρισης βάσεων δεδομένων KYDONIA
Creators: name: Μαραγκουδάκης Γιάννης
Publisher: name: Technical University of Crete
Year: 1995

description: Μη διαθέσιμο
Turbulent thermalization process in heavy-ion collisions at ultrarelativistic energies
Creators: name: Berges, J.
name: Boguslavski, K.
name: Schlichting, S.
name: Venugopalan, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The non-equilibrium evolution of heavy-ion collisions is studied in the limit of weak coupling at very high energy employing lattice simulations of the classical Yang-Mills equations. Performing the largest classical-statistical simulations to date, we find that the dynamics of the longitudinally expanding plasma becomes independent of the details of the initial conditions. After a transient regime dominated by plasma instabilities and free streaming, the subsequent space-time evolution is governed by a nonthermal fixed point, where the system exhibits the self-similar dynamics characteristic of wave turbulence. This allows us to distinguish between different kinetic scenarios in the classical regime. Within the accuracy of our simulations, the scaling behavior found is consistent with the ``bottom-up" thermalization scenario.
description: extended discussion; to appear in Phys. Rev. D
Agricultural Investments: A Primer for Host Government Lawyers and Local Lawyers in Private Practice
Creators: name: Mebratu-Tsegaye, Tehtena
Publisher: name: Columbia University
Year: 2019
Subjects: Agriculture
Land use--Planning
Land use--Planning--Citizen participation
Land use--Government policy
Sustainable development

description: Attracting investment in agriculture has been a key policy goal of governments in the global south. Development partners have supported these policies. But what do governments hope to achieve by attracting investment in the agricultural sector? Why are companies interested in investing? What is in it for local communities? And what is the role of lawyers? This primer provides an introduction to some of the key issues that arise in the negotiation of contracts linked to investments in agriculture, and practical guidance for how to approach common issues. Section 1 of this primer outlines the typical goals of three important stakeholders – the government, companies, and communities who live on or near land on which a project will take place – along with the risks that each type of stakeholder faces. Section 2 discusses the role of contracts and lawyers, provides tips for negotiations, and includes resources for further reading.
title: Производственная база дорожного строительства
Creators: name: ELS IPR BOOKS
Publisher: name: Самарский государственный технический университет, ЭБС АСВ
Year: 2020

description: Предназначено для выполнения контрольной работы студентами специальности «Строительство (реконструкция), эксплуатация и техническое прикрытие автомобильных дорог» по дисциплине «Производственная база дорожного строительства» заочной формы обучения.
title: Производственный менеджмент
Creators: name: ELS IPR BOOKS
Publisher: name: Самарский государственный технический университет, ЭБС АСВ
Year: 2020

description: Включает в себя теоретический материал по дисциплине «Производственный менеджмент в строительстве и городском хозяйстве». Рассмотрены вопросы: организационно-правовые основы и характер коммерческой деятельности в строительстве, методологические основы управления строительным производством, основные методы финансирования жилищного строительства, управление строительством на государственном уровне, договоры подряда и договорные отношения, производственный менеджмент в деятельности заказчика, управление деятельностью подрядной строительной организации и др. Работа предназначена для подготовки бакалавров по направлению 08.03.01 «Строительство».
Detecting, Preventing, and Responding to “Fraudsters” in Internet Research: Ethics and Tradeoffs
Creators: name: Teitcher, Jennifer E. F.
name: Bockting, Walter O.
name: Bauermeister, José A.
name: Hoefer, Chris J.
name: Miner, Michael H.
name: Klitzman, Robert L.
Publisher: name: Columbia University
Year: 2015
Subjects: Research--Moral and ethical aspects
Institutional review boards (Medicine)
Internet research

description: Research that recruits and surveys participants online is increasing, but is subject to fraud whereby study respondents — whether eligible or ineligible — participate multiple times. Online Internet research can provide investigators with large sample sizes and is cost efficient. Internet-based research also provides distance between the researchers and participants, allowing the participant to remain confidential and/or anonymous, and thus to respond to questions freely and honestly without worrying about the stigma associated with their answers. However, increasing and recurring instances of fraudulent activity among subjects raise challenges for researchers and Institutional Review Boards (IRBs). The distance from participants, and the potential anonymity and convenience of online research allow for individuals to participate easily more than once, skewing results and the overall quality of the data. Duplicate entries not only compromise the quality of the research data, but also impact the studies’ budgets if not caught before participants’ payment — a growing concern with decreasing NIH funding lines. Though reports have begun to explore methods for detecting and preventing fraud, the ethical issues and IRB considerations involved have received little systematic attention. Researchers and IRBs may be unfamiliar with these issues and thus be overly restrictive or lax with Internet research protocols.
The nest site lottery: how selectively neutral density dependent growth suppression induces frequency dependent selection
Creators: name: Argasinski, Krzysztof
name: Broom, Mark
Publisher: name: arXiv
Year: 2013
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Classical Analysis and ODEs (math.CA)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Modern developments in population dynamics emphasize the role of the turnover of individuals. In the new approaches stable population size is a dynamic equilibrium between different mortality and fecundity factors instead of an arbitrary fixed carrying capacity. The latest replicator dynamics models assume that regulation of the population size acts through feedback driven by density dependent juvenile mortality. Here, we consider a simplified model to extract the properties of this approach. We show that at the stable population size, the structure of the frequency dependent evolutionary game emerges. Turnover of individuals induces a lottery mechanism where for each nest site released by a dead adult individual a single newborn is drawn from the pool of newborn candidates. This frequency dependent selection leads toward the strategy maximizing the number of newborns per adult death. However, multiple strategies can maximize this value. Among them, the strategy with the greatest mortality (which implies greater instantaneous growth rate) is selected. This result is important for the discussion about universal fitness measures and which parameters are maximized by natural selection. This is related to the fitness measures R0 and r, because the number of newborns per single dead individual equals lifetime production of newborn R0 in models without ageing. Our model suggests the existence of another fitness measure which is the combination of R0 and r. According to the nest site lottery mechanism, at stable population size, selection favours strategies with the greatest r from those with the greatest R0.
description: 32 pages, 1 figure
RDCnet: Connecting guest researcher workstations to provide secure access to sensitive microdata
Creators: name: Murray, Neil
Publisher: name: Zenodo
Year: 2022
Subjects: Sensetive Research Data
RDCnet
Guest Researcher Workstations
Secure Remote Access

description: Presentation on the general concept and implementation of the RDCnet at the workshop "Sensitive Research Data in Switzerland" (Bern, November 25, 2022).
title: Υλοποίηση ενός διαλογικού συστήματος δημιουργίας μεθόδων παρουσίασης για βάσεις δεδομένων πολυμέσων
Creators: name: Μπαλαντίνος Μιχάλης
Publisher: name: Technical University of Crete
Year: 1995

description: Μη διαθέσιμο
Bericht über die Tätigkeit des Provinzialmuseums in Trier vom 1. April 1929 bis 31. März 1930
Creators: name: Krüger, Emil
name: Steiner, Paul
name: Loeschcke, Siegfried
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 135 (1930): Bonner Jahrbücher : Jahrbücher des Vereins von Altertumsfreunden im Rheinlande
Эффективность коллизионно-правового регулирования отношений в сфере торгового мореплавания
Creators: name: Косовская В.А.
Publisher: name: Образование и право
Year: 2021
Subjects: торговое мореплавание
коллизионно-правовое регулирование
коллизионные нормы
международные обычаи
международные договоры.

description: В статье поднимается вопрос о степени эффективности коллизионно-правового регулирования отношений, возникающих в сфере торгового мореплавания. Несмотря на достаточное количество унифицированных материальных норм договорного и обычного происхождения, вопрос о выборе применимого права остается весьма востребованным. Целью исследования является выявление уровня эффективности коллизионно-правового регулирования отношений в сфере торгового мореплавания, закрепленного в российском законодательстве. Проведен анализ коллизионных норм, содержащихся в Кодексе торгового мореплавания, основанный на их классификации по различным критериям.
Юридическое прогнозирование как фундамент повышения качества правовой среды
Creators: name: Агамиров К.В.
Publisher: name: Образование и право
Year: 2021
Subjects: юридическое прогнозирование
правовая среда
правовое пространство
правовые явления и процессы
философские аспекты юридического прогнозирования
достоверность юридического прогнозирования
закономерности поступательного движения правовой системы.

description: Актуальность исследования вызвана значением юридического прогнозирования для повышения качественных показателей эффективности правовой среды. Прогностическая составляющая юридической науки, резюмируя существенные результаты ее описательной и объяснительной миссий, играет значительную роль для социальной практики. Современные условия характеризуются растущей амбивалентностью социальных изменений в глобальном и региональном масштабах и требуют активации прогностической составляющей правовой науки во взаимосвязи с модернизацией государственного администрирования и совершенствованием текущего и стратегического планирования. Особая роль юридического прогнозирования детерминирована его непосредственной корреляцией с управленческими процессами, протекающими в правовой форме, и деятельностным подходом в социально-правовой сфере. Синтезируя теоретическую и практическую деятельности, юридическое прогнозирование сочетает в себе науку и ремесло, способствуя, таким образом, поступательной трансформации качества правового пространства.
title: Σχεδιασμός και υλοποίηση συστήματος αναπαράστασης εσωτερικών χώρων με τη χρήση συνθετικού video
Creators: name: Πετεινός Δημήτρης
Publisher: name: Technical University of Crete
Year: 1996

description: Μη διαθέσιμο
Self-organisation and convection of confined magnetotactic bacteria
Creators: name: Théry, Albane
name: Le Nagard, Lucas
name: Ono-Dit-Biot, Jean-Christophe
name: Fradin, Cécile
name: Dalnoki-Veress, Kari
name: Lauga, Eric
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Article
/639/766/747
/639/766/189
article

description: Funder: Natural Sciences and Engineering Research Council of Canada; doi: http://dx.doi.org/10.13039/501100000038
description: Funder: École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris; doi: http://dx.doi.org/10.13039/501100003068
description: Abstract: Collective motion is found at all scales in biological and artificial systems, and extensive research is devoted to describing the interplay between interactions and external cues in collective dynamics. Magnetotactic bacteria constitute a remarkable example of living organisms for which motion can be easily controlled remotely. Here, we report a new type of collective motion where a uniform distribution of magnetotactic bacteria is rendered unstable by a magnetic field. A new state of “bacterial magneto-convection” results, wherein bacterial plumes emerge spontaneously perpendicular to an interface and develop into self-sustained flow convection cells. While there are similarities to gravity driven bioconvection and the Rayleigh–Bénard instability, these rely on a density mismatch between layers of the fluids. Remarkably, here no external forces are applied on the fluid and the magnetic field only exerts an external torque aligning magnetotactic bacteria with the field. Using a theoretical model based on hydrodynamic singularities, we capture quantitatively the instability and the observed long-time growth. Bacterial magneto-convection represents a new class of collective behaviour resulting only from the balance between hydrodynamic interactions and external alignment.
Non-Gaussian Shape Recognition
Creators: name: Byun, Joyce
name: Bean, Rachel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A detection of primordial non-Gaussianity could transform our understanding of the fundamental theory of inflation. The precision promised by upcoming CMB and large-scale structure surveys raises a natural question: if a detection given a particular template is made, what does this truly tell us about the underlying theory? In this paper we present a systematic way to constrain a wide range of non-Gaussian shapes, including general single and multi-field models and models with excited initial states. We present a separable, divergent basis able to recreate many shapes in the literature to high accuracy with between three and seven basis functions. The basis allows shapes to be grouped into broad "template classes", satisfying theoretically-relevant priors on their divergence properties in the squeezed limit. We forecast how well a Planck-like CMB survey could not only detect a general non-Gaussian signal but discern more about its shape, using existing templates and new ones we propose. This approach offers an opportunity to tie together minimal theoretical priors with observational constraints on the shape in general, and in the squeezed limit, to gain a deeper insight into what drove inflation.
description: 37 pages, 7 figures, 5 tables. Matches the JCAP accepted version
title: Σχεδιασμός και υλοποίηση του διαχειριστή δεικτοδότησης του διαχειριστή καταλόγου και του εκτελεστή ερωτήσεων στο αντικειμενοστρεφές σύστημα διαχείρισης βάσεων πολυμέσων KYDONIA
Creators: name: Νινιός Γιώργος
Publisher: name: Technical University of Crete
Year: 1995

description: Μη διαθέσιμο
Karl-Josef Gilles : Spätrömiscbe Höhensiedlungen in Eifel und Hunsrück. Trier 1985
Creators: name: Klee, Margot
Publisher: name: Fundberichte aus Baden-Württemberg
Year: 2017

description: Rezension zu: Karl-Josef Gilles : Spätrömiscbe Höhensiedlungen in Eifel und Hunsrück. Trierer Zeitschrift für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete. Beih. 7. Hrsg. vom Rheinischen Landesmuseum Trier. Selbstverlag des Rheinischen Landesmuseums Trier (1985). 246 Seiten, 48 Tafeln, 6 Beilagen.. Trierer Zeitschrift für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete. Beih. 7. Hrsg. vom Rheinischen Landesmuseum Trier. Selbstverlag des Rheinischen Landesmuseums Trier (1985). 246 Seiten, 48 Tafeln, 6 Beilagen.
description: Fundberichte aus Baden-Württemberg, Bd. 13 (1988): Fundberichte aus Baden-Württemberg
On Metaplectic Modular Categories and their applications
Creators: name: Hastings, Matthew B.
name: Nayak, Chetan
name: Wang, Zhenghan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: For non-abelian simple objects in a unitary modular category, the density of their braid group representations, the #P-hard evaluation of their associated link invariants, and the BQP-completeness of their anyonic quantum computing models are closely related. We systematically study such properties of the non-abelian simple objects in metaplectic modular categories, which are unitary modular categories with fusion rules of SO(m)_2 for an odd integer m \geq 3. The simple objects with quantum dimensions \sqrt{m} have finite image braid group representations, and their link invariants are classically efficient to evaluate. We also provide classically efficient simulation of their braid group representations. These simulations of the braid group representations can be regarded as qudit generalizations of the Knill-Gottesmann theorem for the qubit case. The simple objects of dimension 2 give us a surprising result: while their braid group representations have finite images and are efficiently simulable classically after a generalized localization, their link invariants are #P-hard to evaluate exactly. We sharpen the #P-hardness by showing that any sufficiently accurate approximation of their associated link invariants is already #P-hard.
description: Many minor revisions including a definition of simulation in the sense of stabilizer formalism. To appear in Comm. Math. Phys
Incidence of chronic subdural haematoma: a single-centre exploration of the effects of an ageing population with a review of the literature
Creators: name: Stubbs, D. J.
name: Vivian, M. E.
name: Davies, B. M.
name: Ercole, A.
name: Burnstein, R.
name: Joannides, A. J.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Original Article - Neurosurgery general
Neurosurgery general
Chronic subdural haematoma
Epidemiology
Incidence
Health service planning

description: Abstract: Background: Chronic subdural haematoma (cSDH) is a common neurosurgical pathology frequently occurring in older patients. The impact of population ageing on cSDH caseload has not been examined, despite relevance for health system planning. Methods: This is a single-centre study from the UK. Operated cases of cSDH (n = 446) for 2015–2018 were identified. Crude and directly standardised incidence rates were calculated. Medline and EMBASE were systematically searched to identify studies reporting on the incidence of cSDH by year, so an estimate of rate of incidence change could be determined. Local incidence rates were then applied to population projections for local catchment area to estimate operated cSDH numbers at 5 yearly intervals due to shifting demographics. Results: We identified nine studies presenting incidence estimates. Crude estimates for operative cases ranged from 1.3/100,000/year (1.4–2.2) to 5.3/100,000/year (4.3–6.6). When non-operated cases were included, incidence was higher: 8.2/100,000/year (6.0–11.2) to 48/100,000/year (37.7–61.1). Four pairs of studies demonstrated incidence rate increases of 200–600% over the last 50 years, but data was deemed too heterogeneous to generate formal estimate of incidence change. Local crude incidence of operated cSDH was 3.50/100,000/year (3.19–3.85). Directly standardised incidence was 1.58/100,000/year (1.26–1.90). After applying local incidence rates to population projections, case numbers were predicted to increase by 53% over the next 20 years. Conclusions: The incidence of cSDH is increasing. We project a 53% increase in operative caseload within our region by 2040. These are important findings for guiding future healthcare planning.
Deciding how many embryos to transfer: ongoing challenges and dilemmas
Creators: name: Klitzman, Robert L.
Publisher: name: Columbia University
Year: 2016
Subjects: Embryo transplantation
Human reproductive technology--Moral and ethical aspects
Fertilization in vitro, Human--Moral and ethical aspects
Bioethics

description: Despite the risks associated with twin and higher-order multiple births, and calls in many countries for single-embryo transfer as the standard of care for good-prognosis patients, providers frequently transfer additional embryos, raising critical questions as to why this is the case and what can be done about it. In-depth interviews of approximately 1 h each were conducted with 27 IVF providers (17 physicians and 10 other healthcare providers) and 10 patients. Professional guidelines often contain flexibility and ambiguities or are unenforced. Thus, both providers and patients frequently wrestle with several dilemmas. Decisions about the number of embryos to transfer emerge as dyadic, dynamic and affected by several factors (e.g., providers’ type of institution, and personal and professional experiences and perceptions of the data), leading to differences in whether, how and with what effectiveness clinicians address these issues with patients. Many clinicians feel that the evidence concerning the apparent increased risk associated with a twin birth is not ‘compelling’, and patients frequently minimize the hazards. These data, the first to explore several critical aspects of how providers and patients view and make decisions about the number of embryos to transfer, thus highlight tensions, uncertainties and challenges that providers and patients confront, and have key implications for future practice, research, policy and education.
Morning Mist at Mishima, from the series Fifty-three Stations of the Tōkaidō
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: The twelfth station along the Tōkaidō, Mishima was known for its Shintō shrine gate, framed by trees, and a constant afflux of travelers. Hiroshige used blue and subtle gradations of grey to suggest the morning mist.
A metadata and data entry and editing tool using ontologies for knowledge graph creation
Creators: name: Steinmeier, Leon
name: van den Boogaart, Karl Gerald
name: Rau, Florian
name: Schaller, Theresa
Publisher: name: Zenodo
Year: 2022
Subjects: research data management
ontology
knowledge graph
software concept

description: A poster for the Helmholtz Metadata Collaboration Conference 2022. Abstract: Making research reproducible and FAIR (Findable, Accessible, Interoperable, and Reusable) often requires more information than what is commonly published within scientific articles. There is a growing number of repositories for publishing additional material like data or code. However, articles are still at the center of most scientific work and thus efforts on gathering information which is important for reproducibility but not for the article itself are often only started at a later stage. This usually makes the collection more tedious, error-prone, and less comprehensive. In order to lower the barrier for recording all relevant information directly when it is generated, we propose a design for a data and metadata entry and editing tool. It should allow researchers to create metadata for the files and assets which they already have and offer a possibility for structured entry of new data. To support consistent (meta)data entry over time, the user will be able to create forms which can enforce comprehensiveness and correctness. Furthermore, data FAIRness is supported through the automated usage of established ontologies for (meta)data annotation. This will be done by a background process so the user isn't involved in these technologies. Nevertheless the tool will grant further possibilities to those who are aware of ontologies used in their domain. Resources can be referenced consistently across (meta)data sets of many stakeholders through identifiers provided by central sources. In conjunction, the usage of these common identifiers and ontologies forms large knowledge graphs of the data recorded with our tool. This contribution will be a discussion of the various components of such a tool, potentially used metadata standards, possible variations, important features, and most relevant: How it can be useful for your work!
The bulge-halo conspiracy in massive elliptical galaxies: implications for the stellar initial mass function and halo response to baryonic processes
Creators: name: Dutton, Aaron A.
name: Treu, Tommaso
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent studies have shown that massive elliptical galaxies have total mass density profiles within an effective radius that can be approximated as ρ_{tot}\propto r^{-γ'}, with mean slope =2.08 \pm 0.03 and scatter σ_γ'=0.16 \pm 0.02. The small scatter of the slope (known as the bulge-halo conspiracy) is not generic in LCDM based models and therefore contains information about the galaxy formation process. We compute the distribution of γ' for LCDM-based models that reproduce the observed correlations between stellar mass, velocity dispersion, and effective radius of early-type galaxies in the SDSS. The models have a range of stellar initial mass functions (IMFs) and dark halo responses to galaxy formation. The observed distribution of γ' is well reproduced by a model with cosmologically motivated but uncontracted dark matter haloes, and a Salpeter-type IMF. Other models are on average ruled out by the data, even though they may happen in individual cases. Models with adiabatic halo contraction (and lighter IMFs) predict too small values of γ'. Models with halo expansion, or mass-follows-light predict too high values of γ'. Our study shows that the non-homologous structure of massive early-type galaxies can be precisely reproduced by LCDM models if the IMF is not universal and if mechanisms such as feedback from active galactic nuclei, or dynamical friction, effectively on average counterbalance the contraction of the halo expected as a result of baryonic cooling.
description: 10 pages, 5 figures, replaced with published version
Kruegerilema, a new genus for a new species endemic to São Tomé Island (Lepidoptera: Erebidae: Arctiinae: Lithosiini)
Creators: name: Volynkin, Anton
name: Gyula, M. László
Publisher: name: Zoological Research Museum Alexander Koenig
Year: 2021

description: The present paper contains a description of the new genus Kruegerilema gen. nov. which is erected for the new species Kruegerilema smithi sp. nov. endemic to São Tomé Island. The diagnostic comparison is made with the genus Brunia Moore, 1878. Adults together with male and female genitalia of the new and similar genus are illustrated.
Contribution to the knowledge of the genus Thumatha Walker, 1866 (Lepidoptera: Erebidae: Arctiinae) from Africa with descriptions of four new species
Creators: name: Volynkin, Anton V.
Publisher: name: Zoological Research Museum Alexander Koenig
Year: 2021

description: The present paper contains descriptions of four new species of the genus Thumatha Walker, 1866: T. ngewo sp. n. (Liberia, Guinea and Ivory Coast), T. smithi sp. n. (Zambia), T. kuehnei sp. n. (Zambia) and T. jiwundu sp. n. (Zam-bia). The hitherto unknown female of T. punctata Kühne, 2010 is illustrated and described. Thumatha punctata is reported for the first time from Zambia and T. lunaris Durante, 2007 is reported for the first time from Cameroon and South Sudan. Adults together with male and female genitalia of the new and similar species are illustrated.
title: Επίδραση των βαρέων μετάλλων και τοξικών στοιχείων Cr, Ni, Co, Zn, Pb, Cu και Hg που απαντώνται στην ιπτάμενη τέφρα των λιγνιτών του Α. Η. Σ. Αγίου Δημητρίου στα καλλιεργούμενα εδάφη της περιοχής.
Creators: name: Τύπου Γιάννης
Publisher: name: Technical University of Crete
Year: 1999

description: Μη διαθέσιμο
Mishima, from the series Fifty-Three Stations of Tōkaidō
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: In this image of Mishima, the twelfth station of the Tōkaidō, Hokusai includes a Shinto shrine gate and tall trees. Although characteristic of Mishima, these elements occupy the background and are partially obstructed by clouds. In the foreground, typically for this early series, Hokusai focuses on figures and anecdotal scenes, showing four travelers of different social strata, with different styles of walking.
Wavelength attack on practical continuous-variable quantum-key-distribution system with a heterodyne protocol
Creators: name: Ma, Xiang-Chun
name: Sun, Shi-Hai
name: Jiang, Mu-Sheng
name: Liang, Lin-Mei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present the wavelength attack on a practical continuous-variable quantum-key-distribution system with a heterodyne protocol, in which the transmittance of beam splitters at Bob's station is wavelength-dependent. Our strategy is proposed independent of but analogous to that of Huang et al. [arXiv: 1206.6550v1 [quant-ph]], but in that paper the shot noise of the two beams that Eve sends to Bob, transmitting after the homodyne detector, is unconsidered. However, shot noise is the main contribution to the deviation of Bob's measurements from Eve's when implementing the wavelength attack, so it must be considered accurately. In this paper, we firstly analyze the solutions of the equations specifically that must be satisfied in this attack, which is not considered rigorously by Huang et al. Then we calculate the shot noise of the homodyne detector accurately and conclude that the wavelength attack can be implemented successfully in some parameter regime.
description: 6 pages, 3 figures
title: Ανάλυση στερεών υπολειμμάτων από καύση μιγμάτων λιγνίτη και αγροτικής βιομάζας σε αντιδραστήρα ρευστοποιημένης κλίνης
Creators: name: Πιθαρούλης Μιχάλης
Publisher: name: Technical University of Crete
Year: 2006

description: Μη διαθέσιμο
We Are Not Struck with Blindness: The Establishment Clause and Religiously Motivated State Preemption of Municipal Non-Discrimination Law
Creators: name: Ritter, Kathleen
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Law
subject: FOS: Law
subject: Church and state
subject: Exclusive and concurrent legislative powers
subject: Constitutional law--Religious aspects
subject: Municipal government
subject: State governments

description: This Article proceeds in three parts. Part I considers the doctrine of state preemption and the current landscape of state preemption of local power, focusing on the increase in state use of preemption in the last few years. Part II provides an overview of Establishment Clause jurisprudence, the state of the Supreme Court’s current practice regarding the Establishment Clause, and the elements of an Establishment Clause claim under the Court’s various tests. Part II also presents Arkansas’ Intrastate Commerce Improvement Act (“Act 137”) as a case study and suggests that, where evidence of impermissible religious legislative motivation exists, the Establishment Clause could provide an alternative to Equal Protection and other federal constitutional claims for challenging preemptive laws. Part III considers how well an Establishment Clause claim against Act 137 would fare, concluding that the probability of the bill being struck down on Establishment Clause grounds under current case law is low. As such, Part III proposes a revised Establishment Clause standard which borrows from Equal Protection case law. It suggests that, under this revised standard, an Establishment Clause claim against Act 137, and other bills with analogously suspect motivations, would have a much greater chance of being struck down. Part III also suggests that the current spate of aggressive preemption activity could potentially be mitigated if courts rethink their approach to state-local relations and preemption generally.
Scale insects (Hemiptera: Coccomorpha) in the entomological collection of the Zoology Research Group, University of Silesia in Katowice (DZUS), Poland
Creators: name: Bugaj-Nawrocka, Agnieszka
name: Junkiert, Łukasz
name: Kalandyk-Kołodziejczyk, Małgorzata
name: Wieczorek, Karina
Publisher: name: Zoological Research Museum Alexander Koenig
Year: 2021

description: Information about the scientific collections is made available more and more often. The digitisation of such resources allows us to verify their value and share these records with other scientists – and they are usually rich in taxa and unique in the world. Moreover, such information significantly enriches local and global knowledge about biodiversi-ty. The digitisation of the resources of the Zoology Research Group, University of Silesia in Katowice (Poland) allowed presenting a substantial collection of scale insects (Hemiptera: Coccomorpha). The collection counts 9369 slide-mounted specimens, about 200 alcohol-preserved samples, close to 2500 dry specimens stored in glass vials and 1319 amber inclusions representing 343 taxa (289 identified to species level), 158 genera and 36 families (29 extant and seven extinct). A significant part is the collection of an outstanding Polish coccidologist, Professor Jan Koteja. The geographical analysis of the scale insects collected shows mainly Eurasian areas, but there is also material from North America, South America, as well as Africa and New Zealand.
title: Промывочные растворы в бурении
Creators: name: ELS IPR BOOKS
Publisher: name: Самарский государственный технический университет, ЭБС АСВ
Year: 2020

description: Приведены основные сведения о промывочных растворах как вида дисперсной системы. Рассмотрены вопросы влияния буровых растворов на промывку в процессе бурения горизонтальных скважин и при бурении многолетнемерзлых горных пород. Материал предназначен для студентов бакалавриата, обучающихся по направлению 21.03.01, профиль «Бурение нефтяных и газовых скважин».