cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The Teaching Of Drama In Secondary Schools: How Cambridgeshire Teachers Feel The Subject Should Be Taught In Relationship To The National Curriculum
Creators: name: Radley, Kathleen Elizabeth
Publisher: name: The Open University
Year: 2002

description: This research aims to explore teachers' views and beliefs with regard to drama as they attempt to define their subject and discuss its content. It examines the debates of the major theoristsfor drama, including Heathcote and Hornbrook, and considers the views and beliefs of teachers in the field to see which models oflearning are reflected in their teaching. Teachers are required to teach drama to English National Curriculum objectives at Key Stage Three, where drama is not regarded us U discrete subject, but is subsumed under English Attainment Target One, 'Speaking and Listening'. At Key Stage Four, drama is regarded as a separate subject from English, where it is taught according to specific Drama GCSE syllabuses. The question is whether teachers ' beliefs about the content, learning and assessment of drama complement the National Curriculum objectives in Key Stages Three and Four. Consequently, further investigation is carried out with regard to which orientation to content, learning and assessment is reflected by the National Curriculum. Teachers ' beliefs concerning subject content, learning and assessment are considered generally us well as with explicit regard to drama teaching itself; to see whether there is a mismatch between the views embodied by the major theorists, teachers' beliefs and the National Curriculum.
A superconductor to superfluid phase transition in liquid metallic hydrogen
Creators: name: Babaev, Egor
name: Sudbo, Asle
name: Ashcroft, N. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Although hydrogen is the simplest of atoms, it does not form the simplest of solids or liquids. Quantum effects in these phases are considerable (a consequence of the light proton mass) and they have a demonstrable and often puzzling influence on many physical properties, including spatial order. To date, the structure of dense hydrogen remains experimentally elusive. Recent studies of the melting curve of hydrogen indicate that at high (but experimentally accessible) pressures, compressed hydrogen will adopt a liquid state, even at low temperatures. In reaching this phase, hydrogen is also projected to pass through an insulator-to-metal transition. This raises the possibility of new state of matter: a near ground-state liquid metal, and its ordered states in the quantum domain. Ordered quantum fluids are traditionally categorized as superconductors or superfluids; these respective systems feature dissipationless electrical currents or mass flow. Here we report an analysis based on topological arguments of the projected phase of liquid metallic hydrogen, finding that it may represent a new type of ordered quantum fluid. Specifically, we show that liquid metallic hydrogen cannot be categorized exclusively as a superconductor or superfluid. We predict that, in the presence of a magnetic field, liquid metallic hydrogen will exhibit several phase transitions to ordered states, ranging from superconductors to superfluids.
description: for a related paper see cond-mat/0410425. A correction to the front page caption appeared in Oct 14 issue of Nature: http://www.nature.com/nature/links/041014/041014-11.html
La colatilidad de los precios en los mercados agrarios de la Union Europea
Creators: name: Cramon-Taubadel, Stephan
name: Cramon-Taubadel, Stephan
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: volatilidad de los precios agrarios
subject: crisis alimentaria
subject: politica agraria comunitaria
subject: agricultural price volatility
subject: food crisis
subject: EU agricultural policy.

description: Los precios elevados y los reducidos stocks han dado lugar globalmente a precios de granos y semillas oleaginoasas crecientemente mas volatiles. Algunos analistas opinan que estamos entrando en una nueva etapa de escasez de alimentos y de precios crecientes. Otros interpretan el fuerte alza de los precios como una interrupcion del proceso de declive de precios de largo plazo. En la UE, los pagos desacoplados proporcionan un considerable efecto estabilizador de la renta que ha compensado gran parte del incremento de volatilidad de las recientes campanas, Ek futuro de los pagos desacoplados esta asegurado hasta 2013, pero no esta claro que se mantengan posteriormente. La combinacion de precios altemente volatiles con una reduccion significative de los pagos desacoplados despues de 2013 daria razones para demandar politicas que permitan estabilizar las rentas y favorezcan la gestion de riesgos en la agricultura. Dos aspectos adicionales que guardan relacion con la volatilidad son la politica de bio-combustibles y el impacto de los inversores financieros sobre el funcionamiento de los mercados de materias primas agrarias, y especialmente si la eficacia de instrumentos de gestion de riesgos como los contratos de futuros ha podido resultar danada por la actividad de los inversores...High prices and low stocks have lead to increasingly volatile prices on grain and oilseed markets worldwide. Some analysts believe that we are entering a new era of scarce food and rising prices. Others see the recent sharp increase in prices as yet another interruption in a continuing long-run trend of declining prices. In the EU, decoupled payments provide a considerable amount of income stabilization that has compensated for much of the increased price volatility in recent years. The future of decoupled payments is secure until 2013, but it is not clear whether they can be sustained thereafter. Continued high price volatility combined with a significant reduction in decoupled payments after 2013 would increase calls for improved stabilization and risk management policies in agriculture. Two other important volatility-related issues are the future of bio-fuels policy and the impact of financial investors on agricultural commodity market performance, and especially whether the performance of risk management tools such as futures markets have been impaired by the activity of financial investors.
ПРОФИЛАКТИКА ИНСПЕКТОРИ ТОМОНИДАН МАЪМУРИЙ ҲУҚУҚБУЗАРЛИК ТЎҒРИСИДАГИ МУРОЖААТЛАРНИ КЎРИБ ЧИҚИШ ФАОЛИЯТИНИ  ТАКОМИЛЛАШТИРИШ
Creators: name: Мустофақулов, Бобур
name: Аҳмадқулов, Ниятулло
Publisher: name: Zenodo
Year: 2025

description: Ушбу мақолада профилактика инспекторларига маъмурий ҳуқуқбузарлик тўғрисидаги келиб тушган мурожаатлар, мурожаатнинг турлари, уларнинг қонуний ечимлари, мурожаатлар бўйича тўпланадиган ҳужжатлар, уларнинг мазмун-моҳияти, маъмурий ҳуқуқбузарлик тўғрисидаги мурожаатларни кўриб чиқишда муаммо ва камчиликлар ҳамда уларнинг ечимлари юзасидан фикр ва мулоҳазалар ёритилган.
Consecuencias del cambio climatico para la agricultura: una problema de hoy o del futuro?
Creators: name: Iglesias, Ana
name: Medina, Felipe
name: Iglesias, Ana
name: Medina, Felipe
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Environmental Economics and Policy
subject: cambio climatico
subject: agricultura
subject: adaptacion
subject: mitigacion
subject: climate change
subject: agriculture
subject: adaptation
subject: mitigation.

description: Este articulo trata de las consecuencias del cambio climatico para la agricultura del presente y del future. El problema fundamental del presente es la necesidad del sector agrario (entre otros) de reducir las emisiones de gases de efecto invernadero y de aumentar la capacidad para secuestrar dioxido de carbono, es decir, de mitigacion del cambio climatico. En el futuro, aunqie la mitigacion continue siendo importante, el principal problema sera de adaptacion a unas condicioens diferentes. A pesar del progreso de la comunidad internacional para reducir las emisiones de gases de efecto invernadero (politicas de mitigacion del presente), el sistema climatico continuara su ajuste a las emisiones actuales, con efectos inevitables para los sistemas naturales o intervenidos por el hombre. La agricultura debe prepararse para los condiciones cambiantes, responder a ellas y tener la capacidad para recuperarse de sus impactos (politicas de adaptacion en el presente y en el futuro). El reto es definir una combinacion optima de los compromisos de mitigacion por parte de la agricultura y de las necesidades de adaptacion de la produccion de alimentos...This article addresses the consequences of climate change for agriculture in the present and in the future. In the present, the main challenge of the agricultural and food sector is to control greenhouse gas emissions, that is: mitigation of climate change. In the future, mitigation will remain important, but a main problem will be adaptation to different conditions. The international community is making an effort to mitigate greenhouse gas emissions (current mitigation policy), but climate will continue to adjust to the current level of atmospheric gases, with unavoidable risks to natural or managed systems. Agriculture needs to be prepared for never-experienced conditions, respond to them and recover from their impacts. The response needs to be triggered by adaption policy in the present and in the future. The challenge is to define an optimal combination of mitigation and adaptation policies for agriculture and food production.
Pandemic Home Security for the Enterprise
Creators: name: Groce, Phillip
name: Caskey, Harry
Publisher: name: Carnegie Mellon University
Year: 2021
Subjects: subject: 80303 Computer System Security
subject: FOS: Computer and information sciences

description: The COVID-19 pandemic has greatly increased remote work among enterprise employees. Home-network environments are not professionally managed, so they are an appealing target for attackers. These attackers are aware that systems on home networks are not patched regularly and a number of them are out of date with respect to vulnerability mitigation. Threat detection is typically nearly absent on home systems, and remediation is often incidental at best.
Additional file 1 of Comparative analysis of MitraClip/TriClip and PASCAL in transcatheter tricuspid valve repair for tricuspid regurgitation: a systematic review and meta-analysis
Creators: name: Balata, Mahmoud
name: Gbreel, Mohamed Ibrahim
name: Hassan, Marwa
name: Becher, Marc Ulrich
Publisher: name: figshare
Year: 2024
Subjects: Space Science
Medicine
Biotechnology
Science Policy

description: Supplementary Material 1
Extending $π$-systems to bases of root systems
Creators: name: Aslaksen, Helmer
name: Lang, Mong Lung
Publisher: name: arXiv
Year: 2004
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B05

description: Let $R$ be an indecomposable root system. It is well known that any root is part of a basis $B$ of $R$. But when can you extend a set of two or more roots to a basis $B$ of $R$? A $π$-system is a linearly independent set of roots, $C$, such that if $α$ and $β$ are in $C$, then $α- β$ is not a root. We will use results of Dynkin and Bourbaki to show that with two exceptions, $A_3 \subset B_n$ and $A_7 \subset E_8$, an indecomposable $π$-system whose Dynkin diagram is a subdiagram of the Dynkin diagram of $R$ can always be extended to a basis of $R$.
description: 6 pages, LaTeX. Corrected typo in statement of theorem and clarified proof
DER COUNTRY-OF-ORIGIN-EFFEKT IN DER WAHRNEHMUNG DEUTSCHER VERBRAUCHER VON SCHOKOLADE AUS ECUADORIANISCHEM KAKAO: HERKUNFTSANGABEN ALS DIFFERENZIERUNGSPOTENTIAL FÜR LEBENSMITTEL AUS AUßEREUROPÄISCHEN LÄNDERN
Creators: name: Otter, Verena
name: Prechtel, Bianca
name: Theuvsen, Ludwig
name: Otter, Verena
name: Prechtel, Bianca
name: Theuvsen, Ludwig
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Marketing
subject: FOS: Economics and business
subject: Country-of-Origin-Effekt
subject: Ecuador
subject: Herkunftsangabe
subject: Kakao
subject: Qualitätswahrnehmung
subject: Schokolade

description: Angaben des Herkunftslandes auf Lebensmittelverpackungen sind von zunehmender Bedeutung und bieten Differenzierungspotentiale u.a. für Kakao-Erzeuger aus Entwicklungs- und Schwellenländern. Inwiefern ein Country-of-Origin-Effekt für den deutschen Verbraucher bei der Qualitätswahrnehmung von Schokolade von Bedeutung ist, wird in diesem Beitrag am Beispiel von Schokolade aus ecuadorianischem Kakao untersucht. Insgesamt ist die Qualitätswahrnehmung von Schokolade das Ergebnis eines komplexen Wahrnehmungsprozesses mit den Einflussfaktoren extrinsische und intrinsische Produktmerkmale, Länderimage, soziodemographische und psychographische Eigenschaften des Verbrauchers sowie dem situativen Faktor Einkaufsstätte. Auf dieser Grundlage wurde eine Online- Befragung von 205 deutschen Schokoladenkonsumenten durchgeführt. Mittels einer PLS-analyse konnte ein starker Country-of-Origin-Effekt bei Schokolade aus ecuadorianischen Kakao nachgewiesen werden.
A Public Repository of Data for Static-Analysis Classification Research
Creators: name: Flynn, Lori
Publisher: name: Carnegie Mellon University
Year: 2020
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: Static Analysis (SA) tools are a widely used and routine part of testing by DoD and commercial organizations. Validating and repairing defects discovered by SA tools can require more human effort from auditors and coders than organizations have available. Since 2016, researchers in the SEI CERT Dvision have been developing a method to automatically classify and prioritize alerts (warnings) and meta-alerts (alerts about code flaws or conditions) to help auditors and coders address large volumes of information with less effort. The purpose of our research has been to enable practical automated classification, so that all meta-alerts can be addressed.
title: An Investigation Into The Use Of Empathy In The Teaching Of English Literature At Key Stage Three
Creators: name: Fairlamb, Linda
Publisher: name: The Open University
Year: 2001

description: Empathy can be seen as a crucial factor in developing understanding of the world around us. The “ability to see something from a different point of view” has been associated with increased ability to understand literature, the moral development of children, and the development of positive personality traits both in adults and children. Investigating empathy, however, is difficult, not least because it is likely to develop over a considerable length of time, and may well involve private or even confidential conversations with a sympathetic audience or counsellor.

The following research began with an analysis of existing literature on empathy, ranging from that presented by practising psychologists to those engaged in classroom practice with children. The fieldwork began with an investigation into the meaning of empathy when it is used in the classroom with children in the formative years of their early teens. The Initial Study examined teacher perceptions of empathy and sought to find commonality between teachers’ ideas and the literature available on empathy. It looked particularly at how teachers utilise empathy in the presentation of literary texts, and whether it helped the pupils to develop their knowledge of set literary texts. Qualitative research methods were used, allowing the focus to be the learning process in the classroom, rather than any end results. The research increasingly came to focus on the pupil experience of empathy in the classroom, and an action research programme was used to allow spirals of activity and reflection to develop.

Action research provided the opportunity to observe and become engaged in the processes which children use in order to construct their own knowledge about particular literary texts which they are required to “study” during Key Stage Three of the National Curriculum. Pupils were observed in their normal surroundings and classrooms, and the work progressed with the help of another teacher, committed to the improvement of her own practice through collaborative action research.

The findings indicated that empathy is difficult to sustain, and not always clearly understood by practitioners in the classroom. It can be viewed as a useful tool, which if carefully used can help learners to construct their own knowledge about a particular text. The study suggested that there is a need for teachers to review assessment strategies for work carried out using empathy as a tool.
Near-Term Self-replicating Probes -- A Concept Design
Creators: name: Borgue, Olivia
name: Hein, Andreas M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Self-replicating probes are spacecraft with the capacity to create copies of themselves. Self-replication would potentially allow for an exponential increase in the number of probes and thereby drastically improve the efficiency of space exploration. Despite this potential, an integrated assessment of self-replicating space probes has not been presented since the 1980s, and it is still unclear how far they are feasible. In this paper, we propose a concept for a partially self-replicating probe for space exploration based on current and near-term technologies, with a focus on small spacecraft. The purpose is to chart a path towards self-replication with near-term benefits, rather than attempting full self-replication. For this reason, components such as microchips and other microelectronic components are brought with the initial probe and are not replicated. We estimate that such a probe would be capable of replicating 70% of its mass. To further increase this percentage, we identify technology gaps that are promising to address. We conclude that small-scale, partially self-replicating probes are feasible near-term. Their benefits would play out in exploration missions requiring roughly more than a dozen of probes.
The Vertex on a Strip
Creators: name: Iqbal, Amer
name: Kashani-Poor, Amir-Kian
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We demonstrate that for a broad class of local Calabi-Yau geometries built around a string of IP^1's - those whose toric diagrams are given by triangulations of a strip - we can derive simple rules, based on the topological vertex, for obtaining expressions for the topological string partition function in which the sums over Young tableaux have been performed. By allowing non-trivial tableaux on the external legs of the corresponding web diagrams, these strips can be used as building blocks for more general geometries. As applications of our result, we study the behavior of topological string amplitudes under flops, as well as check Nekrasov's conjecture in its most general form.
description: 26 pages, 12 figures; v2: minor corrections, version to appear in ATMP
Two studies in hydrodynamic stability : interfacial instabilities and applications of bounding theory
Creators: name: Mandre, Shreyas
Publisher: name: University of British Columbia
Year: 2010

description: Interfacial phenomena, viz. roll waves and elastic tremor, are considered in the first part, whereas in the second bounding theory is applied to double-diffusive convection and shear flows. Roll waves are investigated using shallow-water equations with bottom drag and diffusivity. We explore the effect of bottom topography on linear stability of turbulent flow, followed by an investigation of the nonlinear dynamics. Low-amplitude topography and hydraulic jumps are found to destabilize turbulent roll waves, while higher amplitude topography stabilizes them. The nonlinear dynamics of these waves is explored with numerical and asymptotic solutions of the shallow-water equations. We find that trains of roll waves undergo coarsening dynamics, however coarsening does not continue indefinitely but becomes interrupted at intermediate scales, creating patterns with preferred wavelengths. We quantify the coarsening dynamics in terms of linear stability of steady roll-wave trains. For elastic tremor, e.g. observed in musical reed instruments and vocal cords, a first principles explanation is given for the onset of these oscillations using linear stability theory. An analytical solution is built on the assumptions of thin-film flow and stiff elastic material and the criterion for the destabilization of natural elastic oscillations is derived. Acoustic excitation (e.g. organ pipes) is treated as an analogue, with compressibility playing the role of elasticity, with similar mechanism possibly at work. In double diffusive convection, the flux of the unstably stratified species is bounded using the background method in the presence of opposite stratification of the other species. In order to incorporate a dependence of the bound on the stably stratified component, Joseph's (Stability of fluid motion, 1976, Springer-Verlag) energy stability 112 analysis is extended. At large Rayleigh number, the bound is found to behave like R[sub T][sup ½] for fixed ratio R[sub S]/R[sub T], where R[sub T] and R[sub S] are the Rayleigh numbers of the unstably and stably stratified components, respectively. The energy stability of plane Couette flow is improved for two dimensional perturbations. The energy is chosen from a family of norms so as to maximize the critical Reynolds number. An explicit relation for the critical Reynolds number is found in terms of the perturbation direction.
The rarity of repeating fast radio bursts from binary neutron star mergers
Creators: name: Zhang, G. Q.
name: Yi, S. X.
name: Wang, F. Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Fast radio bursts (FRBs) are extragalactic, bright pulses of emission at radio frequency with milliseconds duration. Observationally, FRBs can be divided into two classes, repeating FRBs and non-repeating FRBs. At present, twenty repeating FRBs have been discovered with unknown physical origins. Localization of the first repeating FRB 121102 and discovery of an associated persistent radio source support that FRBs are powered by young millisecond magnetars, which could be formed by core-collapses of massive stars or binary neutron stars mergers. These two formation channels can be distinguished by gravitational waves generated by binary neutron stars mergers. We first calculate the lower limit of the local formation rate of repeating FRBs observed by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) . Then we show that only a small fraction ($6\%$) of repeating FRBs is produced by young magnetars from binary neutron star mergers, basing on the gravitational wave detections by the third observing run (O3) of Advanced LIGO/Virgo gravitational-wave detectors. Therefore, we believe that repeating FRBs are more likely produced by the magnetars newborn from the core-collapses of massive stars rather than the magnetars from the binary neutron stars mergers.
description: 7 pages, 2 figures, accepted for publication in ApJ
Spin-dependent Destructive Quantum Interference Associated with Chirality-induced Spin Selectivity in Circular Single Helix Molecules
Creators: name: Chen, Song
name: Fu, Hua-Hua
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Theoretical studies on spin-dependent transport through helical molecules with straight spiral geometry have received intense research interest in the past decade, however, the physics in circular helical molecules has still less been explored. In this work, we theoretically construct a circular single helix (CSH) possessing the chirality-induced spin-orbit coupling and contacting with two non-magnetic electrodes. Our theoretical calculations demonstrate that the spin-related transport in CSH exhibits the so-called chiral-induced spin selectivity (CISS) effect and more importantly, the CISS-reduced spin-dependent destructive quantum interference (DQI) also occurs in the CSH, without any external magnetic field or magnetic electrodes. Moreover, the changing of CSH length or the electrode positions exhibits specific patterns in the spin-polarized conductance. Particularly, the dephasing magnitude can adjust effectively these two spin-dependent effects to realize their coexistence. Additionally, the phase transition between the CISS-dependent constructive quantum interference (CQI) and DQI is also observed in the CSH. Our theoretical work puts forwards a new material plateau to explore the CISS and to exhibit the novel CISS-dependent CQI effect.
description: 10 pages, 5 figures, 1 table
The Rise of the s-Process in the Galaxy
Creators: name: Simmerer, J.
name: Sneden, C.
name: Cowan, J. J.
name: Collier, J.
name: Woolf, V. M.
name: Lawler, J. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: From newly-obtained high-resolution, high signal-to-noise ratio spectra the abundances of the elements La and Eu have been determined over the stellar metallicity range -3
description: 64 pages, 15 figures; ApJ 2004 in press
Politicas agrarias y gestion de riesgos: una aproximacion global
Creators: name: Anton, Jesus
name: Anton, Jesus
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Risk and Uncertainty
subject: politicas publicas
subject: apoyos a la agricultura
subject: gestion de riesgos
subject: public policy
subject: support to agriculture
subject: risk management

description: Este trabajo identifica los principales retos y lineas directrices de las politicas gubernamentales en el campo de la gestion de riesgos en la agricultura, con particular enfasis en las buenas practicas politicas en un entorno internacional, Se desarrollan cuatro ideas principales. Primera, una buena politicas y un buen analisis de politicas requiren una aproximacion "global". Maxime porque los riesgos estan interrelacionados e interactuan con las estrategias del productor y con los programas y regulaciones del gobierno. SEgunda, el objectivo ultimo de la politica gubernamental, este motivado por fallos de mercado o por razones de equidad, necesita identificarse con precision para analizar su ambito y naturaleza, y determinar asi las medidas mas apropiadas. Tercera, debe tenerse en cuenta el contexto de todas las medidas de apoyo a la agricultura porque existen potenciales efectos erlacionados con la gestion del riesgo, asociados con la mayoria de las formas de apoyo. Esta necesidad es particularmente evidente en los paises de la OCDE con altos niveles de apoyo a la agricultura. Cuarta, las medidas de gestion del riesgo deben respetar las disciplinas de los acuerdos internacionales, en particular, el Acuerdo sobre la Agricultura de la Organizacion Internacional del Comercio. La OCDE ha identificado algunas lineas directrices en este campo...This paper discusses the main issues and driving forces of government policies in the area of risk management in agriculture, with particular emphasis on good policy practices and the international environment. Four main ideas are developed. First, good policy and good analysis requires a holistic approach. This is particularly so in this policy area because risks interact prominently with both farm household strategies and government programs and regulations in terms of risk reduction impacts and the development of market tools and strategies. Second, the rational for government actions which are based on market failure or equity concerns need to be defined in order to analyze its nature and scope, as well as to develop appropriate government measures. Third, the context of all support measures to agriculture must be considered because there are potential risk-related effects associated with most forms of support, particularly in OECD countries with high level of support to agriculture. Fourth, risk management measures need to comply with international agreements, particularly the Agreement on Agriculture of the World Trade Organization. Implications for good policy in this are have been already drafted by OECD and are useful for policy analysis.
Мохамед Азхар Алі Емад
Creators: name: imad, drali
Publisher: name: figshare
Year: 2021
Subjects: subject: 150203 Financial Institutions (incl. Banking)
subject: FOS: Economics and business
subject: 150307 Innovation and Technology Management

description: علي عماد محمد ازهر - جامعة الشرق الاوكرانية فلاديمير دال
Transient effects in oilfield cementing flows
Creators: name: Moyers González, Miguel Angel
Publisher: name: University of British Columbia
Year: 2010

description: In this thesis we study instabilities and mud channel removal during the primary cementing of an oil well. This process involves displacement of a sequence of non-Newtonian fluids along a narrow eccentric annulus. Previously, this has been modelled as a pseudo-steady process using a Hele-Shaw approximation. In such models, the stream function is governed by a steady elliptic problem and the fluids, (modelled via a concentration equation), simply advect along the annulus. It has been shown that for certain rheological and physical parameters, the displacement front will advances much faster on the wide side of the annulus than on the narrow side. In extreme cases the displacement front does not advance at all on the narrow side of the annulus and a static mud channel results as the finger advances up the wide side. In this thesis we consider whether the interface of a progressively advancing finger will remain stable to small perturbations. There is in fact experimental evidence that interfacial instabilities can occur in this situation. We find that the interface is in fact stable whenever there is a static mud channel on the narrow side of the annulus. Consequently, we also investigate how a mud channel might be removed by pulsation of the flow rate. Study of these two phenomena cannot be undertaken with the pseudo-steady framework. Therefore, we extend this model to flows that are fully transient. The transient model consists of a nonlinear evolution equation for the stream function. In chapter 3 we show that this transient model is in fact well-posed. In chapter 4 we study stability of multi-layer parallel flows, i.e. long fingers. If both fluids are yielded at the interface, instabilities may arise for different combinations of the 14 dimensionless parameters. These instabilities are related to a jump in tangential velocity at the interface and do not appear to have been identified before. In chapter 5 we investigate the case where a static mud channel develops on the narrow side of the annulus. Our stability theory predicts only linear stability. We therefore study the effects of a finite pulsation of the flow rates via numerical simulation. It seems that if we perturb the flow from the beginning of the displacement, the transient model fully captures the effects of the perturbation and the width of the mud channel is reduced. The pseudo-steady velocity model does not report any significant changes with respect to the results using a constant flow rate. If however, pulsation is applied after the mud channel has already formed, the removal of the mud channel will be unsuccessful.
Additional file 2 of Comparative analysis of MitraClip/TriClip and PASCAL in transcatheter tricuspid valve repair for tricuspid regurgitation: a systematic review and meta-analysis
Creators: name: Balata, Mahmoud
name: Gbreel, Mohamed Ibrahim
name: Hassan, Marwa
name: Becher, Marc Ulrich
Publisher: name: figshare
Year: 2024
Subjects: Space Science
Medicine
Biotechnology
Science Policy

description: Supplementary Material 2
Local surgery formulas for quantum invariants and the Arf invariant
Creators: name: Kirby, Robion
name: Melvin, Paul
Publisher: name: arXiv
Year: 2004
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57M27, 68Q15

description: A formula for the Arf invariant of a link is given in terms of the singularities of an immersed surface bounded by the link. This is applied to study the computational complexity of quantum invariants of 3--manifolds.
description: Published by Geometry and Topology Monographs at http://www.maths.warwick.ac.uk/gt/GTMon7/paper9.abs.html
Nominal Topology for Data Languages
Creators: name: Birkmann, Fabian
name: Milius, Stefan
name: Urbat, Henning
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: F.4.3

description: We propose a novel topological perspective on data languages recognizable by orbit-finite nominal monoids. For this purpose, we introduce pro-orbit-finite nominal topological spaces. Assuming globally bounded support sizes, they coincide with nominal Stone spaces and are shown to be dually equivalent to a subcategory of nominal boolean algebras. Recognizable data languages are characterized as topologically clopen sets of pro-orbit-finite words. In addition, we explore the expressive power of pro-orbit-finite equations by establishing a nominal version of Reiterman's pseudovariety theorem.
description: Extended version of the corresponding paper accepted for ICALP 2023
A short proof of the Harris-Kesten Theorem
Creators: name: Bollobas, Bela
name: Riordan, Oliver
Publisher: name: arXiv
Year: 2004
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60K35; 82B43

description: We give a short proof of the fundamental result that the critical probability for bond percolation in the planar square lattice is equal to 1/2. The lower bound was proved by Harris, who showed in 1960 that percolation does not occur at $p=1/2$. The other, more difficult, bound was proved by Kesten, who showed in 1980 that percolation does occur for any $p>1/2$.
description: 17 pages, 9 figures; typos corrected. To appear in the Bulletin of the London Mathematical Society
Gap, shadows, spirals, streamers: SPHERE observations of binary-disk interactions in GG Tau A
Creators: name: Keppler, M.
name: Penzlin, A.
name: Benisty, M.
name: van Boekel, R.
name: Henning, T.
name: van Holstein, R. G.
name: Kley, W.
name: Garufi, A.
name: Ginski, C.
name: Brandner, W.
name: Bertrang, G. H. -M.
name: Boccaletti, A.
name: de Boer, J.
name: Bonavita, M.
name: Sevilla, S. Brown
name: Chauvin, G.
name: Dominik, C.
name: Janson, M.
name: Langlois, M.
name: Lodato, G.
name: Maire, A. -L.
name: Ménard, F.
name: Pantin, E.
name: Pinte, Ch.
name: Stolker, T.
name: Szulágyi, J.
name: Thebault, P.
name: Villenave, M.
name: Zurlo, A.
name: Rabou, P.
name: Feautrier, P.
name: Feldt, M.
name: Madec, F.
name: Wildi, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A large fraction of stars is found to be part of binary or higher-order multiple systems. The ubiquity of planets found around single stars raises the question if and how planets in binary systems may form. Protoplanetary disks are the birthplaces of planets, and their characterization is crucial in order to understand the planet formation process. Our aim is to characterize the morphology of the GG Tau A disk, one of the largest and most massive circumbinary disks, and trace evidence for binary-disk interactions. We obtained observations in polarized scattered light of GG Tau A using the SPHERE/IRDIS instrument in the H-band filter. We analyze the observed disk morphology and substructures. We run 2D hydrodynamical models simulating the evolution of the circumbinary ring over the lifetime of the disk. The disk, as well as the cavity and the inner region are highly structured with several shadowed regions, spiral structures, and streamer-like filaments, some of them detected for the first time. The streamer-like filaments appear to connect the outer ring with the northern arc. Their azimuthal spacing suggests that they may be generated by periodic perturbations by the binary, tearing off material from the inner edge of the outer disk once during each orbit. By comparing observations to hydrodynamical simulations we find that the main features, in particular the gap size, as well as the spiral and streamer filaments, can be qualitatively explained by the gravitational interactions of a binary with semi-major axis of $\sim$35 au on an orbit coplanar with the circumbinary ring.
description: Accepted for publication in A&A
title: Sex And Gender Roles In Gentle And Noble Families, c.1575-1660, With A Particular Focus On Marriage Formation
Creators: name: Gosling, Sally Catherine
Publisher: name: The Open University
Year: 2000

description: The thesis examines thinking about, and experiences of, gender roles and family relationships for the gentry and nobility, particularly through the process of marriage formation. The study draws on a range of sources, including collections of family letters, personal memoirs and prescriptive literature. Some chapters pursue a case study approach to correspondence. Others consider the relationship between published advice and personal attitudes and experience. The study explores whether there were contradictions in thinking on family life, gender, love and marriage, as some historians have claimed, and seeks to disentangle the overlaps and inter-relationships between these broad themes. While family and gender roles were multi-layered and multi-faceted, thinking and practice were neither incoherent nor conflicting. Rather, they were highly complex and treated as such. How marriages were forged and male and female roles in this process and in marriage itself required the balancing of many factors. Prescription recognised this and practice reinforced the need for pragmatism. Moreover, advice was not monolithic, but nuanced according to its purpose and intended audience. Gender roles, family relationships and marriage were varied and manifold within both the realms of rhetoric and experience. There was a strong elision of gender roles, affording women significant scope for decision-making. Family relationships were fluid, underpinned by a heavy dependence on, respect for, and emotional investment in, the extended family. Marriage formation was informed by recognition of the importance of a moral, disciplined love for sustaining marriages and families. The thesis highlights the intricacies of relatively new (although increasingly wellresearched) areas of study for historians. It seeks to undermine a simplistic division between prescription and practice, and between advisers and the advised, and to raise the importance of considering men within the family and facets of female authority.
Release of SCAIFE System Version 1.0.0 Provides Full GUI-Based Static-Analysis Adjudication System with Meta-Alert Classification.
Creators: name: Flynn, Lori
Publisher: name: Carnegie Mellon University
Year: 2021
Subjects: subject: 80303 Computer System Security
subject: FOS: Computer and information sciences

description: The SEI Source Code Analysis Integrated Framework Environment (SCAIFE) is a modular architecture designed to enable a wide variety of tools, systems, and users to use artificial intelligence (AI) classifiers for static-analysis meta-alerts at relatively low cost and effort. SCAIFE uses automation to reduce the significant manual effort required to adjudicate meta-alerts that are produced by static-analysis tools.
The Virtual Correction to Bremsstrahlung in High-Energy e+ e- Annihilation: Comparison of Exact Results
Creators: name: Yost, S. A.
name: Glosser, C.
name: Jadach, S.
name: Ward, B. F. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have compared the virtual corrections to single hard bremsstrahlung as calculated by S. Jadach, M. Melles, B.F.L. Ward and S.A. Yost to several other expressions. The most recent of these comparisons is to the leptonic tensor calculated by J.H. Kuhn and G. Rodrigo for radiative return. Agreement is found to within a part in 10^5 or better, as a fraction of the Born cross section, for most of the range of photon energies. The massless limits have been shown to agree analytically to NLL order.
description: 7 pages, 2 figures. Presented by S.A. Yost at ICHEP 2004, International Conference on High Energy Physics, Beijing, August 16-22, 2004
title: The impact of the Greek government debt crisis on the financial and operating performance of Greek companies
Creators: name: Mavrogonatos, Ioannis
Publisher: name: TU Wien
Year: 2017
Subjects: subject: Greek debt crisis
subject: operating performance
subject: Greek companies

description: The aim of this master thesis is to investigate whether and how Greek listed companies were influenced by the event of the Greek debt crisis, which emerged in late 2009. The Greek economy has been suffering by endogenous and exogenous problems, which brought the whole country and its economy into a long recession period since 2010. The main sample consist of 269 listed companies, while the selected time frame covers the period from 2005 to 2015. The methodology is based on fourteen indicators that measure the financial and operating performance of a company. Besides the comparison of the final sample, the impact of the crisis is also examined with respect to SMEs and Large companies, as well as to companies from service and manufacturing sector. Findings show that most performance measures exhibit a significant decline in the period post- the beginning of the debt crisis. Thus, for the main sample it is documented that profitability, operating efficiency (real sales per employee), liquidity, employment, dividends, output (real sales) and capital investments significantly decrease in the period post-to the beginning of the Greek debt crisis. However, mixed evidence is found concerning the impact of the Greek debt crisis on the capital structure. It is also found concerning operating efficiency that Greek listed companies suffer more by the debt crisis than the economic development of the Greek economy, while with respect to employment Greek listed companies are less affected than overall the Greek economy by the event of the debt crisis. The results for the sub-samples SMEs and large companies are in line with the results of the full sample. Nevertheless, it is found that SMEs are affected more than large companies concerning operating efficiency, employment, output and capital investments. Furthermore, it is documented that companies of the manufacturing sector have a higher leverage than companies from the service sector in the period after the beginning of the crisis.
Results from a Prototype TES Detector for the Ricochet Experiment
Creators: name: Ricochet Collaboration
name: Augier, C.
name: Baulieu, G.
name: Belov, V.
name: Bergé, L.
name: Billard, J.
name: Bres, G.
name: Bret, J-. L.
name: Broniatowski, A.
name: Calvo, M.
name: Cazes, A.
name: Chaize, D.
name: Chala, M.
name: Chang, C. L.
name: Chapellier, M.
name: Chaplinsky, L.
name: Chemin, G.
name: Chen, R.
name: Colas, J.
name: Cudmore, E.
name: De Jesus, M.
name: de Marcillac, P.
name: Dumoulin, L.
name: Exshaw, O.
name: Ferriol, S.
name: Figueroa-Feliciano, E.
name: Filippini, J. -B.
name: Formaggio, J. A.
name: Fuard, S.
name: Gannon, K.
name: Gascon, J.
name: Giuliani, A.
name: Goupy, J.
name: Goy, C.
name: Guerin, C.
name: Guy, E.
name: Harrington, P.
name: Hertel, S. A.
name: Heusch, M.
name: Hong, Z.
name: Ianigro, J. -C.
name: Jin, Y.
name: Juillard, A.
name: Karaivanov, D.
name: Kazarcev, S.
name: Lamblin, J.
name: Lattaud, H.
name: Li, M.
name: Lisovenko, M.
name: Lubashevskiy, A.
name: Marnieros, S.
name: Martini, N.
name: Mayer, D. W.
name: Minet, J.
name: Monfardini, A.
name: Mounier, F.
name: Novati, V.
name: Olivieri, E.
name: Oriol, C.
name: Mateo, L. Ovalle
name: Palladino, K. J.
name: Patel, P. K.
name: Perbet, E.
name: Pinckney, H. D.
name: Poda, D. V.
name: Ponomarev, D.
name: Rarbi, F.
name: Real, J. -S.
name: Redon, T.
name: Reyes, F. C.
name: Ricol, J. -S.
name: Robert, A.
name: Rozov, S.
name: Rozova, I.
name: Salagnac, T.
name: Schmidt, B.
name: Scorza, S.
name: Shevchik, Ye.
name: Soldner, T.
name: Stachurska, J.
name: Stutz, A.
name: Vagneron, L.
name: Van De Pontseele, W.
name: Veihmeyer, C.
name: Vezzu, F.
name: Wang, G.
name: Winslow, L.
name: Yakushev, E.
name: Yefremenko, V. G.
name: Zhang, J.
name: Zinatulina, D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Coherent elastic neutrino-nucleus scattering (CE$ν$NS) offers valuable sensitivity to physics beyond the Standard Model. The Ricochet experiment will use cryogenic solid-state detectors to perform a precision measurement of the CE$ν$NS spectrum induced by the high neutrino flux from the Institut Laue-Langevin nuclear reactor. The experiment will employ an array of detectors, each with a mass of $\sim$30 g and a targeted energy threshold of 50 eV. Nine of these detectors (the "Q-Array") will be based on a novel Transition-Edge Sensor (TES) readout style, in which the TES devices are thermally coupled to the absorber using a gold wire bond. We present initial characterization of a Q-Array-style detector using a 1 gram silicon absorber, obtaining a baseline root-mean-square resolution of less than 40 eV.
description: 18 pages, 8 figures
Precision spectroscopy and density-dependent frequency shifts in ultracold Sr
Creators: name: Ido, Tetsuya
name: Loftus, Thomas H.
name: Boyd, Martin M.
name: Ludlow, Andrew D.
name: Holman, Kevin W.
name: Ye, Jun
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: By varying the density of an ultracold $^{88}$Sr sample from $10^9$ cm$^{-3}$ to $> 10^{12}$ cm$^{-3}$, we make the first definitive measurement of the density-related frequency shift and linewidth broadening of the $^1S_0$ - $^3P_1$ optical clock transition in an alkaline earth system. In addition, we report the most accurate measurement to date of the $^{88}$Sr $^1S_0 - ^3P_1$ optical clock transition frequency. Including a detailed analysis of systematic errors, the frequency is ($434 829 121 312 334 \pm 20_{stat} \pm 33_{sys}$) Hz.
description: 4 pages, 4 figures, 1 table. submitted
Some examples of tame dynamical systems answering questions of Glasner and Megrelishvili
Creators: name: Codenotti, Alessandro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Glasner and Megrelishvili proved that every continuous action of a topological group $G$ on a dendrite $X$ is tame. We produce two examples of an action on a dendrite which is not $\mathrm{tame}_1$, answering a question they raised. We then show that actions on dendrites have $β$-rank at most $2$ and produce examples of tame metric dynamical systems of $β$-rank $α$ for any $α<ω_1$, answering another question of Glasner and Megrelishvili.
description: accepted version