cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
COOPERATIVE FARMING AS AN ALTERNATIVE TO SHARE RENTING IN BANGLADESH: TEST OF SOME HYPOTHESES
Creators: name: Ahmed, Jasim U.
name: Ahmed, Jasim U.
Publisher: name: Unknown
Year: 1980
Subjects: Research and Development/Tech Change/Emerging Technologies

description: This paper seeks to examine the possibility of cooperative farming as an alternative to share renting with the help of data on three experimental cooperative farms in Bangladesh. It has been observed that cooperative farms may provide an alternative to share renting only if due shares of returns for all land and non-land resources supplied by members are ensured. Due to absence of such provisions, practice of renting was prevalent in the cooperative farms under study. There is evidence that under the existing methods of organization of the cooperative farms, the members of small and medium farm size, unlike similar size groups of non-members, tended to increase their operated area significantly by renting in more land than they rented out. This is possibly the reflection of the less exploitative terms of share renting in the cooperative farming areas compared to other areas. In the long-term content, however, the objective of equity in income distribution will be blurred by the parallel existence of share renting within the co-operative farms since it will provide a source of income transfer from tenant members to land-owner members.
A perturbative algorithm for rotational decoherence
Creators: name: Carlesso, Matteo
name: Naeij, Hamid Reza
name: Bassi, Angelo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Recent advances in levitated optomechanics provide new perspectives for the use of rotational degrees of freedom for the development of quantum technologies as well as for testing fundamental physics. As for the translational case, their use, especially in the quantum regime, is limited by environmental noises, whose characterization is fundamental in order to assess, control and minimize their effect, in particular decoherence. Here, we present a general perturbative approach to compute decoherence for a quantum system in a superposition of its rotational degrees of freedom. The specific cases of the dipole-dipole and quadrupole-quadrupole interactions are solved explicitly, and we show that the rotational degrees of freedom decohere on a time scale that can be longer than the translational one.
Spectroscopic Analysis of the DAB White Dwarf PG 1115+166: An Unresolved DA + DB Degenerate Binary
Creators: name: Bergeron, P.
name: Liebert, James
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A spectroscopic analysis of the DAB white dwarf PG 1115+166 is presented. The observed hydrogen and helium line profiles are shown to be incompatible with model spectra calculated under the assumption of homogeneous or stratified chemical compositions. In contrast, an excellent fit to the optical spectrum of PG 1115+166 can be achieved if the object is interpreted as an unresolved double degenerate composed of a hydrogen-line DA star and a helium-line DB star. The atmospheric parameters obtained from the best fit are Teff=22,090 K and log g=8.12 for the DA star, Teff=16,210 K and log g=8.19 for the DB star. This binary interpretation is consistent with the results recently reported by Burleigh et al. that PG 1115+166 also exhibits radial velocity variations. The implications of this discovery with respect to the DAB spectral class are discussed.
description: 10 pages, 3 figures; accepted for publication in the Astrophysical Journal, February 20, 2002 issue
Twelve tips on creating and using custom GPTs to enhance health professions education
Creators: name: Masters, Ken
name: Benjamin, Jennifer
name: Agrawal, Anoop
name: MacNeill, Heather
name: Pillow, M. Tyson
name: Mehta, Neil
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Space Science
Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: The custom GPT is the latest powerful feature added to ChatGPT. Non-programmers can create and share their own GPTs (“chat bots”), allowing Health Professions Educators to apply the capabilities of ChatGPT to create administrative assistants, online tutors, virtual patients, and more, to support their clinical and non-clinical teaching environments. To achieve this correctly, however, requires some skills, and this 12-Tips paper provides those: we explain how to construct data sources, build relevant GPTs, and apply some basic security.
Additional file 2: Table S2 of Erratum to: â Intake of Macro- and Micronutrients in Danish Vegansâ
Creators: name: Kristensen, Nadja
name: Madsen, Mia
name: Hansen, Tue
name: Allin, Kristine
name: Hoppe, Camilla
name: Fagt, Sisse
name: Lausten, Mia
name: GĂ¸Bel, Rikke
name: Vestergaard, Henrik
name: Hansen, Torben
name: Pedersen, Oluf
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Sex-stratified micronutrient intake in the vegan and the Danish National Survey of Dietary Habits and Physical Activity (DANSDA) study samples (using an age and gender specific, individually matched control group) with the 2012 Nordic Nutrition Recommendations (NNR). (DOC 77Â kb)
BEYOND BOUNDARIES - THE PROMISE AND PERILS OF EXTRACTING AKASHIC RECORDS FOR LEARNING AND GROWTH
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2024
Subjects: Akashic records
Knowledge acquisition
Neurotechnology
Ethical considerations
Consciousness studies
Interdisciplinary approach
Cognitive enhancement
Privacy protection
Neuroethics
Personal development

description: This article explores the concept of extracting and implanting akashic records as a novel approach to training and knowledge acquisition. Drawing from the esoteric notion of the akashic records as a repository of universal knowledge, the article delves into the theoretical foundation of this concept and discusses the extraction and implantation process. It examines the interdisciplinary nature of developing technology for accessing and manipulating akashic records, highlighting the convergence of neuroscience, bioinformatics, and consciousness studies. Furthermore, the article discusses the potential benefits of implanting experiences from akashic records, including accelerated learning, access to collective wisdom, and enhanced cognitive abilities. Ethical considerations surrounding consent, privacy, authenticity, and social justice are also addressed, emphasizing the need for responsible development and deployment of this transformative technology. Finally, the article outlines the technical challenges associated with the extraction and implantation process and underscores the importance of transparent and inclusive discussions about its ethical implications.

 

In diesem Artikel wird das Konzept der Extraktion und Implantation von Akasha-Chroniken als neuartiger Ansatz für Training und Wissenserwerb untersucht. Ausgehend von der esoterischen Vorstellung der Akasha-Chronik als Aufbewahrungsort universellen Wissens befasst sich der Artikel mit den theoretischen Grundlagen dieses Konzepts und erörtert den Extraktions- und Implantationsprozess. Es untersucht den interdisziplinären Charakter der Entwicklung von Technologien für den Zugriff auf und die Manipulation von Akasha-Aufzeichnungen und hebt die Konvergenz von Neurowissenschaften, Bioinformatik und Bewusstseinsstudien hervor. Darüber hinaus diskutiert der Artikel die potenziellen Vorteile der Implantation von Erfahrungen aus der Akasha-Chronik, einschließlich beschleunigtem Lernen, Zugang zu kollektiver Weisheit und verbesserten kognitiven Fähigkeiten. Ethische Überlegungen zu Einwilligung, Privatsphäre, Authentizität und sozialer Gerechtigkeit werden ebenfalls angesprochen und die Notwendigkeit einer verantwortungsvollen Entwicklung und Nutzung dieser transformativen Technologie betont. Abschließend skizziert der Artikel die technischen Herausforderungen, die mit dem Extraktions- und Implantationsprozess verbunden sind, und unterstreicht die Bedeutung transparenter und inklusiver Diskussionen über seine ethischen Auswirkungen.
Additional file 3: Table S3 of Erratum to: â Intake of Macro- and Micronutrients in Danish Vegansâ
Creators: name: Kristensen, Nadja
name: Madsen, Mia
name: Hansen, Tue
name: Allin, Kristine
name: Hoppe, Camilla
name: Fagt, Sisse
name: Lausten, Mia
name: GĂ¸Bel, Rikke
name: Vestergaard, Henrik
name: Hansen, Torben
name: Pedersen, Oluf
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Plant Biology
subject: Computational Biology

description: Overview of supplement intake among the vegans. (DOCX 23Â kb)
Non-perturbative approach for the time-dependent symmetry breaking
Creators: name: Kim, Hyeong-Chan
name: Yee, Jae Hyung
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a variational method which uses a quartic exponential function as a trial wave-function to describe time-dependent quantum mechanical systems. We introduce a new physical variable $y$ which is appropriate to describe the shape of wave-packet, and calculate the effective action as a function of both the dispersion $\sqrt{< \hat{q}^2>}$ and $y$. The effective potential successfully describes the transition of the system from the false vacuum to the true vacuum. The present method well describes the long time evolution of the wave-function of the system after the symmetry breaking, which is shown in comparison with the direct numerical computations of wave-function.
description: 8 pages, 3 figures
Identifying the exceptional learner in medical education: A doing vs. being framework
Creators: name: Mand, Gurpreet
name: Nijhawan, Monica
name: Fernando, Oshan
name: Freeman, Risa
name: Merbaum, Allyson
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: This study aims to understand what is known about the high performing or exceptional learner in medical education. There is a rich literature about learners in difficulty, yet little is known about those performing at the high end, also known as exceptional learners. A qualitative study was undertaken whereby 15 faculty members at the University of Toronto were interviewed to explore their experiences with these learners. Based on the findings, we developed a framework to categorize characteristics of exceptional learners by differentiating them as either ‘Being’ (a pre-existing attribute or set of values that the learner possesses from the start of training) or ‘Doing’ (demonstrable characteristics that can be observed or measured). Using this framework, we identified five characteristics in the category of ‘Being’, five in the category of ‘Doing’, and two that could be situated in either or both. Utilizing this framework to describe exceptional learners will aid teachers in identifying them early in their training so that their training experience can be enhanced. This novel approach contributes to our knowledge of the exceptional medical learner. The optimization of the training experience will maximize the opportunity to ensure that these learners reach their full potential to contribute to the healthcare system.
Lightweight Image Super-Resolution with Information Multi-distillation Network
Creators: name: Hui, Zheng
name: Gao, Xinbo
name: Yang, Yunchu
name: Wang, Xiumei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In recent years, single image super-resolution (SISR) methods using deep convolution neural network (CNN) have achieved impressive results. Thanks to the powerful representation capabilities of the deep networks, numerous previous ways can learn the complex non-linear mapping between low-resolution (LR) image patches and their high-resolution (HR) versions. However, excessive convolutions will limit the application of super-resolution technology in low computing power devices. Besides, super-resolution of any arbitrary scale factor is a critical issue in practical applications, which has not been well solved in the previous approaches. To address these issues, we propose a lightweight information multi-distillation network (IMDN) by constructing the cascaded information multi-distillation blocks (IMDB), which contains distillation and selective fusion parts. Specifically, the distillation module extracts hierarchical features step-by-step, and fusion module aggregates them according to the importance of candidate features, which is evaluated by the proposed contrast-aware channel attention mechanism. To process real images with any sizes, we develop an adaptive cropping strategy (ACS) to super-resolve block-wise image patches using the same well-trained model. Extensive experiments suggest that the proposed method performs favorably against the state-of-the-art SR algorithms in term of visual quality, memory footprint, and inference time. Code is available at \url{https://github.com/Zheng222/IMDN}.
description: To be appear in ACM Multimedia 2019, https://github.com/Zheng222/IMDN
Spin correlations in the algebraic spin liquid - implications for high Tc superconductors
Creators: name: Rantner, Walter
name: Wen, Xiao-Gang
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose that underdoped high $T_c$ superconductors are described by an algebraic spin liquid (ASL) at high energies, which undergoes a spin-charge recombination transition at low energies. The spin correlation in the ASL is calculated via its effective theory - a system of massless Dirac fermions coupled to a U(1) gauge field. We find that without fine tuning any parameters the gauge interaction strongly enhances the staggered spin correlation even in the presence of a large single particle pseudo-gap. This allows us to show that the ASL plus spin-charge recombination picture can explain many highly unusual properties of underdoped high $T_c$ superconductors.
description: 22 pages, 18 figures, submitted to PRB
SEASONALITY OF FARM LABOUR USE IN AN AREA OF MYMENSINGH DISTRICT
Creators: name: Mandal, M. A. S.
name: Mandal, M. A. S.
Publisher: name: Unknown
Year: 1980
Subjects: Research and Development/Tech Change/Emerging Technologies

description: This paper presents an empirical analysis of the seasonality of farm labour use on the basis of data collected from 160 rural households. Two seasonal peaks in labour use were observed. The first peak was observed in the months of March-May, while the second peak occurred in August. A comparison between farm size groups revealed that medium farms, compared to small farms and large farms, seemed to have made available higher amount of labour in the second peak. One of the reasons for this is that the medium farmers did not hire out much family labour so that they could meet the peak season labour demand.
title: 03_0139
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Under pressure? : Eine qualitative Untersuchung zur Verwendung illegaler Substanzen in gelebter schwuler Sexualität
Creators: name: Gudorf, Niklas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2024
Subjects: subject: Chemsex
subject: Drogen
subject: sexualiserte Gewalt
subject: 304
subject: 152

description: Die vorliegende Masterthesis widmet sich dem Phänomen Chemsex, bei den sexuellen Begegnungen zwischen Männern unter dem Einfluss illegaler Substanzen stattfinden. Die Maximierung des sexuellen Erlebens stellt ein zentrales Motiv dar, wodurch es Männern ermöglicht wird, stunden- bis tagelange sexuelle Aktivitäten mit wechselnden Partner*innen zu erleben. Die Substanzen können das Selbstbewusstsein steigern und negative Gedanken in den Hintergrund drängen. Der Konsum ist allerdings mit Risiken verbunden. Das Ziel dieser Arbeit liegt darin, weitere (internalisierte) Motive zu erkennen. Im theoretischen Teil werden drei Erklärungsmuster vorgestellt. Chemsex als Bewältigungsstrategie angesichts gesellschaftlicher Ablehnung, als Suche nach Grenzerfahrungen und als Ausdruck sich wandelnder sexueller Praxen, angesichts der Erfordernisse einer neoliberalen Leistungsgesellschaft. Die Untersuchung wird mithilfe von teilstandardisierten Interviews durchgeführt und schafft im Ergebnis eine Annäherung an diese sexuelle Kultur.
CHILDREN'S PARTICIPATION IN THE RURAL WAGE LABOUR MARKET
Creators: name: Begum, Saleha
name: Begum, Saleha
Publisher: name: Unknown
Year: 1980
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Normally children's economic value in peasant economy is analysed in terms of their contribution to family farm production. But fcr households with small or no land holding and few assets, opportunities for realizing the economic value of children are restricted. Children from thesee households can make an economic contribution to their families by participating in the wage labour market. Amongst a sample of one hundred poor rural households, fifty-four had children of working age. In thirty-seven of these children worked for earnings off the family farm and contributed thirty-four percent of households income; in the other seventeen, households children did not work. This difference in participation is analysed in relation to economic need of and opportunities for child labour participation in the wage labour market. Finally, the need for a more informed understanding of how landlessness or near landlessness may affect fertility is discussed.
Nonlinear gravitational waves and their polarization
Creators: name: Canfora, F.
name: Vilasi, G.
name: Vitale, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Vacuum gravitational fields invariant for a non Abelian Lie algebra generated by two Killing fields whose commutator is light-like are analyzed. It is shown that they represent nonlinear gravitational waves obeying to two nonlinear superposition laws. The energy and the polarization of this family of waves are explicitely evaluated.
description: 9 pages. LateX. Minor corrections
The Schweitzer effect: The fundamental relationship between experience and medical students’ opinions on professional behaviours
Creators: name: McGurgan, Paul
name: Calvert, Katrina
name: Celenza, Antonio
name: Nathan, Elizabeth A.
name: Jorm, Christine
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: We examined whether medical students’ opinions on the acceptability of a behaviour were influenced by previously encountering a similar professionally challenging situation, assessed the magnitude of effect of ‘experience’ compared to other demographic factors which influence medical students’ opinions, and evaluated whether opinions regarding some situations/behaviours were more susceptible to ‘experience’ bias? Confidential, on-line survey for medical students distributed to Australian and New Zealand (AUS/NZ) medical schools. Students submitted de-identified demographic information, provided opinions on the acceptability of a wide range of student behaviours in professionally challenging situations, and whether they had encountered similar situations. 3171 students participated from all 21 Aus/NZ medical schools (16% of registered students). Medical students reported encountering many of the professionally challenging situations, with varying opinions on what was acceptable behaviour. The most significant factor influencing acceptability towards a behaviour was whether the student reported encountering a similar situation. The professional dilemmas most significantly influenced by previous experience typically related to behaviours that students could witness in clinical environments, and often involved breaches of trust. Our results demonstrate the relationship between experience and medical students’ opinions on professional behaviour- the ‘Schweitzer effect’. When students encounter poor examples of professional behaviour, especially concerning trust breaches, it significantly influences their perception of the behaviour. These results highlight the importance of placing students in healthcare settings with positive professional role modelling/work cultures.
Data Collection versus Data Estimation: A Fundamental Trade-off in Dynamic Networks
Creators: name: Arabneydi, Jalal
name: Aghdam, Amir G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: An important question that often arises in the operation of networked systems is whether to collect the real-time data or to estimate them based on the previously collected data. Various factors should be taken into account such as how informative the data are at each time instant for state estimation, how costly and credible the collected data are, and how rapidly the data vary with time. The above question can be formulated as a dynamic decision making problem with imperfect information structure, where a decision maker wishes to find an efficient way to switch between data collection and data estimation while the quality of the estimation depends on the previously collected data (i.e., duality effect). In this paper, the evolution of the state of each node is modeled as an exchangeable Markov process for discrete features and equivariant linear system for continuous features, where the data of interest are defined in the former case as the empirical distribution of the states, and in the latter case as the weighted average of the states. When the data are collected, they may or may not be credible, according to a Bernoulli distribution. Based on a novel planning space, a Bellman equation is proposed to identify a near-optimal strategy. A reinforcement learning algorithm is developed for the case when the model is not known exactly, and its convergence to the near-optimal solution is shown subsequently. In addition, a certainty threshold is introduced that determines when data estimation is more desirable than data collection, as the number of nodes increases. For the special case of linear dynamics, a separation principle is constructed wherein the optimal estimate is computed by a Kalman-like filter, irrespective of the probability distribution of random variables...
description: IEEE Transactions on Network Science and Engineering, 16 pages
Ta närvaro via ett test i Athena
Creators: name: Storr, Christine
Publisher: name: Stockholm University Design Patterns
Year: 2022
Subjects: subject: 130103 Higher Education
subject: FOS: Educational sciences

description: Det här är ett designmönster som skapats inom ett pedagogisk ambassadörs projekt på Centrum för universitetslärarutbildning vid Stockholms universitet. Designmönster är en etablerad metod för att kartlägga bl.a. pedagogiska problem och erbjuda förslag till lösningar.

Det här designmönstret handlar om ett alternativt sätt att ta aktiv närvaro på en lektion.
This is a design pattern created in conjunction with a project at the Center for the Advancement of University Teaching at Stockholm University. Design patterns are an established method of identifying and mapping educational problems in order to offer solutions.
Optical Conductivity Study of $f$ Electron States in YbCu$_2$Ge$_2$ at High Pressures to 20 GPa
Creators: name: Okamura, H.
name: Nagata, M.
name: Tsubouchi, A.
name: Onuki, Y.
name: Ikemoto, Y.
name: Moriwaki, T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Optical conductivity [$σ(ω)$] of YbCu$_2$Ge$_2$ has been measured at external pressures ($P$) to 20 GPa, to study the $P$ evolution of $f$ electron hybridized states. At $P$=0, $σ(ω)$ shows a marked mid-infrared (mIR) peak at 0.37 eV, which is due to optical excitations from $f^{14}$ (Yb$^{2+}$) state located below the Fermi level. With increasing $P$, the mIR peak shows significant shifts to lower energy, reaching 0.18 eV at $P$=20 GPa. This result indicates that the $f^{14}$ energy level increases toward the Fermi level with $P$. Such a shift of the $f$ electron level with $P$ has been expected from theoretical considerations, but had never been demonstrated by spectroscopic experiment under high $P$. The obtained results are also analyzed in terms of the $P$ evolution of the conduction-$f$ electron hybridization.
description: 5 pages, submitted to the Proceedings of SCES 2019
International trade and food safety. Are we ready?
Creators: name: Gangapersad, Ganesh
name: Johnson, Elbert
name: Gangapersad, Ganesh
name: Johnson, Elbert
Publisher: name: Unknown
Year: 2010
Subjects: Food Security and Poverty
International Relations/Trade

description: With a rising food import bill in the region, many CARICOM countries are faced with the challenge of increasing domestic production to achieve some level of food security to be able to compete on the local and international markets. Price is no longer the only important parameter in the marketing of food. Consumers are becoming more aware of food safety issues and are so inclined towards purchasing foods that are safe, wholesome and competitively priced. Regional food producers, manufacturers and suppliers are faced with the daunting task of supplying food of an international standard while operating in an environment where the necessary policy, regulation and support mechanisms are not implemented and in some cases not in place. This scenario effectively creates an opportunity for extra regional food to enter the region and displace local production. This paper presents a case study of the food safety programme implemented by NAMDEVCO in managing the trade protocol between Trinidad and Barbados over the past five years and looks at the critical issues to be addressed at the regional level and the way forward.
Superluminal X-shaped beams propagating without distortion along a coaxial guide
Creators: name: Zamboni-Rached, M.
name: Nobrega, K. Z.
name: Recami, Erasmo
name: Hernandez-Figueroa, H. E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Physics (physics.gen-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In a previous paper [Phys. Rev. E64 (2001) 066603; e-print physics/0001039], we showed that localized Superluminal solutions to the Maxwell equations exist, which propagate down (non-evanescence) regions of a metallic cylindrical waveguide. In this paper we construct analogous non-dispersive waves propagating along coaxial cables. Such new solutions, in general, consist in trains of (undistorted) Superluminal "X-shaped" pulses. Particular attention is paid to the construction of finite total energy solutions. Any results of this kind may find application in the other fields in which an essential role is played by a wave-equation (like acoustics, geophysics, etc.). [PACS nos.: 03.50.De; 41.20;Jb; 83.50.Vr; 62.30.+d; 43.60.+d; 91.30.Fn; 04.30.Nk; 42.25.Bs; 46.40.Cd; 52.35.Lv. Keywords: Wave equations; Wave propagation; Localized beams; Superluminal waves; Coaxial cables; Bidirectional decomposition; Bessel beams; X-shaped waves; Maxwell equations; Microwaves; Optics; Special relativity; Coaxial metallic waveguides; Acoustics; Seismology; Mechanical waves; Elastic waves; Guided gravitational waves.]
description: plain LaTeX file (22 pages), plus 15 figures; in press in Phys. Rev. E
Informelle sexuelle Bildungsangebote auf TikTok : Eine qualitative Inhalts- und kategoriengeleitete Videoanalyse
Creators: name: Nitzsche, Pascal
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt, Halle (Saale)
Year: 2024
Subjects: subject: sexuelle Bildungsangebote
subject: Social-Media-Plattform TikTok
subject: informelle Bildung
subject: 370

description: Ziel der vorliegenden Masterarbeit wird sein herauszufinden, inwiefern sexuelle Bildungsangebote auf der Social-Media-Plattform TikTok angeboten werden und ob die dortigen Videos der informellen Bildung zuzuordnen sind. Die dafür verwendete Methode wird die qualitative Inhaltsanalyse nach dem Vorgehen von Mayring sowie die kategoriengeleitete Videoanalyse nach dem Vorgehen von Reichertz sein.
Policy-Gradient Training of Fair and Unbiased Ranking Functions
Creators: name: Yadav, Himank
name: Du, Zhengxiao
name: Joachims, Thorsten
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Computers and Society (cs.CY)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: While implicit feedback (e.g., clicks, dwell times, etc.) is an abundant and attractive source of data for learning to rank, it can produce unfair ranking policies for both exogenous and endogenous reasons. Exogenous reasons typically manifest themselves as biases in the training data, which then get reflected in the learned ranking policy and often lead to rich-get-richer dynamics. Moreover, even after the correction of such biases, reasons endogenous to the design of the learning algorithm can still lead to ranking policies that do not allocate exposure among items in a fair way. To address both exogenous and endogenous sources of unfairness, we present the first learning-to-rank approach that addresses both presentation bias and merit-based fairness of exposure simultaneously. Specifically, we define a class of amortized fairness-of-exposure constraints that can be chosen based on the needs of an application, and we show how these fairness criteria can be enforced despite the selection biases in implicit feedback data. The key result is an efficient and flexible policy-gradient algorithm, called FULTR, which is the first to enable the use of counterfactual estimators for both utility estimation and fairness constraints. Beyond the theoretical justification of the framework, we show empirically that the proposed algorithm can learn accurate and fair ranking policies from biased and noisy feedback.
An Adaptive Optics Search for Companions to Stars with Planets
Creators: name: Luhman, K. L.
name: Jayawardhana, Ray
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have performed a Keck adaptive optics (AO) imaging survey of 25 extrasolar planetary systems discovered by the radial velocity programs. Typically, the high-resolution (FWHM~0.04") near-infrared images are able to detect point sources at dH=10 at 1", L and T dwarfs at 0.5" to 2.0", and stars and brown dwarfs at 3-10 AU and 10-100 AU from the targets. The AO images reveal 15 faint sources (H=14-20) near the stars HD 37124, HD 168443, HD 187123, and HD 190228 out to a search radius of 3.3. We have obtained AO images at a second epoch for five of the candidate companions at Keck and Gemini Observatories. The resulting measurements of proper motions relative to the primary stars indicate that these five sources are background stars. Given that the four primaries are near the Galactic plane (|b|<6 deg), the remaining faint sources are also likely to be background stars rather than substellar companions. We present the companion detection limits for each target as a function of separation and compare them to the sensitivities of radial velocity surveys, demonstrating the complementary nature of the two techniques.
description: to be published in The Astrophysical Journal, 26 pages, 13 figures, also found at http://cfa-www.harvard.edu/sfgroup/preprints.html
Prospects of forming high-spin polar molecules from ultracold atoms
Creators: name: Frye, Matthew D.
name: Cornish, Simon L.
name: Hutson, Jeremy M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We have investigated Feshbach resonances in collisions of high-spin atoms such as Er and Dy with closed-shell atoms such as Sr and Yb, using coupled-channel scattering and bound-state calculations. We consider both low-anisotropy and high-anisotropy limits. In both regimes we find many resonances with a wide variety of widths. The wider resonances are suitable for tuning interatomic interactions, while some of the narrower resonances are highly suitable for magnetoassociation to form high-spin molecules. These molecules might be transferred to short-range states, where they would have large magnetic moments and electric dipole moments that can be induced with very low electric fields. The results offer the opportunity to study mixed quantum gases where one species is dipolar and the other is not, and open up important prospects for a new field of ultracold high-spin polar molecules.
description: Accepted version
Partial solutions to several conjectures on completely monotonic degrees for remainders in asymptotic expansions of the digamma function
Creators: name: Qi, Feng
name: Mahmoud, Mansour
Publisher: name: arXiv
Year: 2019
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 33B15, Secondary 26A48, 41A60, 44A10

description: Motivated by several conjectures posed in the paper "F. Qi and A.-Q. Liu, Completely monotonic degrees for a difference between the logarithmic and psi functions, J. Comput. Appl. Math., vol. 361, pp. 366--371 (2019); available online at https://doi.org/10.1016/j.cam.2019.05.001", the authors compute several completely monotonic degrees of the remainders in the asymptotic expansions of the logarithm of the gamma function and in the asymptotic expansions of the logarithm of the digamma function.
description: 11 pages
Double-Detonation Models for Type Ia Supernovae: Trigger of Detonation in Companion White Dwarfs and Signatures of Companions' Stripped-off Materials
Creators: name: Tanikawa, Ataru
name: Nomoto, Ken'ichi
name: Nakasato, Naohito
name: Maeda, Keiichi
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have studied double-detonation explosions in double-degenerate (DD) systems with different companion white dwarfs (WD) for modeling type Ia supernovae (SNe Ia) by means of high-resolution smoothed particle hydrodynamics (SPH) simulations. We have found that only the primary WDs explode in some of the DD systems, while the explosions of the primary WDs induce the explosions of the companion WDs in the other DD systems. The former case is so-called Dynamically-Driven Double-Degenerate Double-Detonation (D$^6$) explosion, or helium-ignited violent merger explosion. The supernova ejecta of the primary WDs strip materials from the companion WDs, whose mass is $\sim 10^{-3}M_\odot$. The stripped materials contain carbon and oxygen when the companion WDs are carbon-oxygen (CO) WDs with He shells $\lesssim 0.04M_\odot$. Since they contribute to low-velocity ejecta components as observationally interfered for iPTF14atg, D$^6$ explosions can be counterparts of sub-luminous SNe Ia. The stripped materials may contribute to low-velocity C seen in several SNe Ia. In the latter case, the companion WDs explode through He detonation if they are He WDs, and through double-detonation mechanism if they are CO WDs with He shells. We name these explosions "triple" and "quadruple" detonation (TD/QD) explosions after the number of detonations. The QD explosion may be counterparts of luminous SNe Ia, such as SN 1991T and SN 1999aa, since they yield a large amount of $^{56}$Ni, and their He-detonation products contribute to the early emissions accompanying such luminous SNe Ia. On the other hand, the TD explosion may not yield a sufficient amount of $^{56}$Ni to explain luminous SNe Ia.
description: reference updated
Additional file 1: Table S1 of Erratum to: â Intake of Macro- and Micronutrients in Danish Vegansâ
Creators: name: Kristensen, Nadja
name: Madsen, Mia
name: Hansen, Tue
name: Allin, Kristine
name: Hoppe, Camilla
name: Fagt, Sisse
name: Lausten, Mia
name: GĂ¸Bel, Rikke
name: Vestergaard, Henrik
name: Hansen, Torben
name: Pedersen, Oluf
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Computational Biology

description: Sex-stratified macronutrient intake in the vegan and the Danish National Survey of Dietary Habits and Physical Activity (DANSDA) study samples (using an age and gender specific, individually matched control group) with the 2012 Nordic Nutrition Recommendations (NNR). (DOC 54Â kb)
Die Videoplattform YouTube als Unterrichtsgegenstand an Grundschulen – Analyse des Nutzungsverhaltens von Lehrkräften
Creators: name: Bader, Lucie
Publisher: name: Hochschulbibliothek, Hochschule Merseburg
Year: 2021
Subjects: subject: YouTube
subject: Grundschule
subject: Medienausstattung
subject: Anwendungsmöglichkeiten
subject: Online-Videoplattform
subject: DDC::300 Sozialwissenschaften::370 Bildung und Erziehung::370 Bildung und Erziehung

description: Die vorliegende Bachelorarbeit hat daher YouTube und seine Einsatzmöglichkeiten im Grundschulbereich als Untersuchungsgegenstand. Ein besonderer Schwerpunkt wird dabei auf die digitale Infrastruktur an Grundschulen gelegt. Weiterhin wird die Nutzung von YouTube aus Sicht der Lehrenden betrachtet. Die Fragestellung die zu beantworten ist lautet: Wie und unter welchen Voraussetzungen kann die Online-Videoplattform YouTube von Lehrern für den Unterricht im Grundschulbereich genutzt werden? Ziel der Arbeit ist es, mittels eines Fragebogens einen Überblick über die Medienausstattung und -nutzung in Grundschulen zu erhalten. Des Weiteren soll hinterfragt werden, inwieweit YouTube bereits im Grundschulbereich eingesetzt wird und welche generellen Anwendungsmöglichkeiten der Online- Videoplattform es für den Unterricht gibt.
Ai margini dell?Impero. Potere e aristocrazia a Trebisonda e in Epiro nel basso Medioevo
Creators: name: FASOLIO, MARCO
Publisher: name: Universit� degli Studi del Piemonte Orientale Amedeo Avogadro
Year: 2017

description: Lo scopo di questo lavoro � stato ricostruire le dinamiche del potere, i comportamenti e le strutture interne delle classi dirigenti entro due regioni di confine dell?Impero Bizantino, quali l?Epiro e la Chaldia, tra il regno di Basilio II e la quarta crociata (fine X-inizio XIII secolo). La scelta dal punto di vista geografico, sia sul piano cronologico risponde a una precisa esigenza storiografica. A Trebisonda, cos� come in Epiro, infatti, in seguito alla quarta crociata sorsero e si
svilupparono due principati retti da dinasti bizantini che avrebbero conservato la propria indipendenza anche in seguito alla restaurazione della basileia del 1261 e sarebbero sopravvissuti persino alla caduta di Costantinopoli nel 1453. Sin dalla prima met� del XIX secolo gli studiosi si sono cimentati nell?indagine sulle istituzioni, la politica, l?economia e la societ� di entrambi i potentati, tuttavia, bench� molti abbiano riconosciuto che la fondazione di questi ultimi non
avvenne su una tabula rasa, bens� all?interno di un contesto che necessariamente ebbe un influsso sia sulle prime fasi di vita dei principati, sia sul prosieguo della loro esistenza, nessuno di loro ha mai tentato una ricostruzione complessiva di quel contesto. Per quanto concerne l?arco cronologico, fu proprio tra il regno di Basilio II e la fine del XII secolo che l?Impero vide la definitiva ascesa dei ceti aristocratici, i quali trasformarono in profondit� le strutture economiche, politiche e sociali di Bisanzio e la traghettarono verso il pieno medioevo. Furono, dunque, necessariamente quegli stessi ceti i protagonisti della vita politica epirota e trebisontina e pertanto proprio loro hanno costituito il fulcro dell?indagine. Non si � trattato per� di ricongiungere due fasi distinte della di entrambe le regioni separate dagli eventi catastrofici della quarta crociata, dal momento che un?operazione del genere avrebbe il rischio di incorrere nel teleologismo, quanto piuttosto di descrivere le condizioni socio-politiche di Trebisonda e dell?Epiro nei secoli che precedettero il 1204 al fine di offrire un?ulteriore chiave interpretativa per la comprensione di quanto avvenne in seguito.
Magnetic Properties of the Novel Low-Dimensional Cuprate Na5RbCu4(AsO4)4Cl2
Creators: name: Clayhold, J. A.
name: Ulutagay-Kartin, M.
name: Hwu, S. -J.
name: Koo, H. -J.
name: Whangbo, M. -H.
name: Voigt, A.
name: Eaiprasertsak, K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The magnetic properties of a new compound, Na5RbCu4(AsO4)4Cl2 are reported. The material has a layered structure comprised of square Cu4O4 tetramers. The Cu ions are divalent and the system behaves as a low-dimensional S=1/2 antiferromagnet. Spin exchange in Na5RbCu4(AsO4)4Cl2 appears to be quasi-two-dimensional and non-frustrated. Measurements of the bulk magnetic susceptibility and heat capacity are consistent with low-dimensional magnetism. The compound has an interesting, low-entropy, magnetic transition at T = 17 K.
description: 4 pages, 5 figures
Erstellung eines Konzeptes für ein automatisch arbeitendes Fertigungssystem zur Fräs- und Bohrbearbeitung von prismatischen Werkstücken unter Beachtung von Werkzeug und Werkzeugmaschinen-Diagnose
Creators: name: Li, Yuanzhe
Publisher: name: Hochschulbibliothek, Hochschule Merseburg
Year: 2021
Subjects: subject: Konzept eines automatisch arbeitenden Fertigungssystems
subject: Fräsbearbeitung
subject: Bohrbearbeitung
subject: prismatische Werkstücke
subject: DDC::6** Technik, Medizin, angewandte Wissenschaften::67* Industrielle Fertigung

description: Im Rahmen der Bachelorarbeit sind, gemäß der o. g. Themenstellung, das Maschinenkonzept zu kon z ipieren, deren Struktur dazustellen sowie dazugehörige maschinenbautechnische und organisatorische Besonderheiten aufzuze igen und deren Einbindung in den Prozessablauf zu analysieren.
Exploring the atmospheric dynamics of the extreme ultra-hot Jupiter KELT-9b using TESS photometry
Creators: name: Wong, Ian
name: Shporer, Avi
name: Kitzmann, Daniel
name: Morris, Brett M.
name: Heng, Kevin
name: Hoeijmakers, H. Jens
name: Demory, Brice-Olivier
name: Ahlers, John P.
name: Mansfield, Megan
name: Bean, Jacob L.
name: Daylan, Tansu
name: Fetherolf, Tara
name: Rodriguez, Joseph E.
name: Benneke, Björn
name: Ricker, George R.
name: Latham, David W.
name: Vanderspek, Roland
name: Seager, Sara
name: Winn, Joshua N.
name: Jenkins, Jon M.
name: Burke, Christopher J.
name: Christiansen, Jessie
name: Essack, Zahra
name: Rose, Mark E.
name: Smith, Jeffrey C.
name: Tenenbaum, Peter
name: Yahalomi, Daniel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We carry out a phase-curve analysis of the KELT-9 system using photometric observations from NASA's Transiting Exoplanet Survey Satellite (TESS). The measured secondary eclipse depth and peak-to-peak atmospheric brightness modulation are $650^{+14}_{-15}$ ppm and $566\pm16$ ppm, respectively. The planet's brightness variation reaches maximum $31\pm5$ minutes before the midpoint of the secondary eclipse, indicating a $5\overset{\circ}{.}2\pm0\overset{\circ}{.}9$ eastward shift in the dayside hot spot from the substellar point. We also detect stellar pulsations on KELT-9 with a period of $7.58695\pm0.00091$ hours. The dayside emission of KELT-9b in the TESS bandpass is consistent with a blackbody brightness temperature of $4600\pm100$ K. The corresponding nightside brightness temperature is $3040\pm100$ K, comparable to the dayside temperatures of the hottest known exoplanets. In addition, we detect a significant phase-curve signal at the first harmonic of the orbital frequency and a marginal signal at the second harmonic. While the amplitude of the first harmonic component is consistent with the predicted ellipsoidal distortion modulation assuming equilibrium tides, the phase of this photometric variation is shifted relative to the expectation. Placing KELT-9b in the context of other exoplanets with phase-curve observations, we find that the elevated nightside temperature and relatively low day-night temperature contrast agree with the predictions of atmospheric models that include H$_{2}$ dissociation and recombination. The nightside temperature of KELT-9b implies an atmospheric composition containing about 50% molecular and 50% atomic hydrogen at 0.1 bar, a nightside emission spectrum that deviates significantly from a blackbody, and a 0.5-2.0 $μ$m transmission spectrum that is featureless at low resolution.
description: Published in AJ, updated with proof corrections. 17 pages, 8 figures