cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Youths, elders, and the wages of war in Enga province, Papua New Guinea
Creators: name: Wiessner, Polly
Publisher: name: Canberra, ACT: State, Society and Governance in Melanesia (SSGM) Program, School of International, Political and Strategic Studies, College of Asia & the Pacific, The Australian National University
Year: 2010
Subjects: governance
conflict
gender
Papua New Guinea

description: "Here I will consider cycles of Enga warfare within the 350-year span for which we have information on warfare from oral and written historical records. The first is a period of intensive warfare that occurred in the first half of the 19th century, redrawing the map of Enga after the introduction of the sweet potato. These turbulent times were followed by a hundred-year period of successful initiatives to keep warfare in check and to promote prosperity. The Colonial Era then intervened with a ban on warfare. The second is a period of devastating “modern” warfare that began a few years before Independence in 1975 (Gordon and Kipilan 1982); Paney 1973) and accelerated in 1990 with the adoption of new technology in warfare, homemade shotguns and high-powered weapons, reversing the power hierarchy between older men and youths. Fieldwork and village court records allow us to trace the rise in violence, the formation of warring gangs of mercenaries, the impact on the population of Enga and the state of Papua New Guinea, and in the last few years, what may be a trend back towards moderation ..." - page 1
Schmidt, Aloys, Heimatchronik der Stadt und des Landkreises Koblenz
Creators: name: Zahn, Eberhard
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Rezension zu: Schmidt, Aloys, Heimatchronik der Stadt und des Landkreises Koblenz. Köln : Archiv für Deutsche Heimatpflege, 1955. 328 S.
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 23 Nr. 1/2 (1954/1955): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Eurac Research Reproducibility Talks: Why Reproducibility Matters?
Creators: name: Bochynska, Agata
name: Van Eyghen, Hans
name: Zogmaister, Cristina
name: Lehtsalu, Liise
Publisher: name: Zenodo
Year: 2023
Subjects: reproducibility
reproducible research
https://id.worldcat.org/fast/1904473/

description: What is reproducible research? What are reproducible research practices? And why should reproducibility and replicability matter to researchers, research performing organizations and the research system at large? 

In this webinar, we invited three researchers and librarians to talk about reproducibility and replicability from their disciplinary perspectives. Professor Cristina Zogmaister is a cognitive scientist whose research focuses on attitudes and the relationship between attitudes and overt behavior. Dr. Hans Van Eyghen is a theologian whose research focuses on epistemology and replication in the humanities. Dr. Agata Bochynska is a psycholinguist and a senior academic librarian with a focus on implementing open research and reproducibility practices across disciplines. All three speakers have a strong interest in reproducibility and replicability and are engaged in the Steering Groups of their national Reproducibility Networks.

Eurac Research joined the Italian Reproducibility Network in spring 2023. With this webinar, we celebrateed our entrance into the network and invited both our researchers as well as all other participants to reflect on reproducibility and replicability in research, why it matters and how to further it. 

The webinar was co-sponsored by the Italian Reproducibility Network.
Festschrift für Peter Goessler
Creators: name: Kilian, Lothar
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Rezension zu: Festschrift für Peter Goessler. Stuttgart : Kohlhammer, 1953. 221 S. - (Tübinger Beiträge zur Vor- und Frühgeschichte ; [1])
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 23 Nr. 1/2 (1954/1955): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Joffroy, René, Ages des métaux de France
Creators: name: Dehn, Wolfgang
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Rezension zu: Joffroy, René, Ages des métaux de France. Antwerpen, 1954. Bl.F 1 - F 6 - (Inventaria archaeologica : France ; 1)
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 23 Nr. 1/2 (1954/1955): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Hatt, Jean-Jacques, Strasbourg au temps des romains
Creators: name: Reusch, Wilhelm
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Rezension zu: Hatt, Jean-Jacques, Strasbourg au temps des romains. Strasbourg, 1953. 79 S.
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 23 Nr. 1/2 (1954/1955): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
The subcritical baroclinic instability in local accretion disc models
Creators: name: Lesur, G.
name: Papaloizou, J. C. B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: (abridged) Aims: We present new results exhibiting a subcritical baroclinic instability (SBI) in local shearing box models. We describe the 2D and 3D behaviour of this instability using numerical simulations and we present a simple analytical model describing the underlying physical process. Results: A subcritical baroclinic instability is observed in flows stable for the Solberg-Hoiland criterion using local simulations. This instability is found to be a nonlinear (or subcritical) instability, which cannot be described by ordinary linear approaches. It requires a radial entropy gradient weakly unstable for the Schwartzchild criterion and a strong thermal diffusivity (or equivalently a short cooling time). In compressible simulations, the instability produces density waves which transport angular momentum outward with typically alpha<3e-3, the exact value depending on the background temperature profile. Finally, the instability survives in 3D, vortex cores becoming turbulent due to parametric instabilities. Conclusions: The subcritical baroclinic instability is a robust phenomenon, which can be captured using local simulations. The instability survives in 3D thanks to a balance between the 2D SBI and 3D parametric instabilities. Finally, this instability can lead to a weak outward transport of angular momentum, due to the generation of density waves by the vortices.
description: 12 pages, 17 figures, Accepted in A&A
An environmental history of British settlement in Van Diemen's Land : the making of a distinct people, 1798-1831
Creators: name: Boyce, PJ
Publisher: name: University Of Tasmania
Year: 2023

description: Van Diemen's Land received approximately 72 000 convicts, mainly from the British Isles and Ireland, between 1 803 and 1 853, and convicts and their descendants formed the large majority of the population of the island colony throughout this time. This thesis focuses on the environmental experience of this majority population in the first three decades of settlement. It argues that the history of British settlement of Van Diemen's Land, and consequently, to a not insignificant extent, Australia, has been distorted by a failure to recognize that the rigorous attempts to reproduce English rural society - social and environmental - were largely undertaken by a relatively small group of free settlers. The consequence of the failure to recognize the extent to which socio-economic background shaped environmental experience, is that the life-changing experience of the new land by a people without the capital or privilege to buffer them from an immediate experience of place, have been obscured. The thesis studies how the rich and accessible resources of the off-shore islands, coastal bays and estuaries and, above all, grassy woodlands of the midlands and east coast provided convicts and former convicts with an economic and physical refuge from the rigorous and often brutal attempts to turn them into a disciplined subservient labour force. This encounter with the new land occurred in the context of a populated and defended land, and while this thesis is not 'Aboriginal history', the Aborigines are inevitably central to the British experience, and the cross-cultural meeting and conflict are major themes within it.
On pseudo-Riemannian manifolds with many Killing spinors
Creators: name: Alekseevsky, D. V.
name: Cortés, V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C27; 53C50

description: Let $M$ be a pseudo-Riemannian spin manifold of dimension $n$ and signature $s$ and denote by $N$ the rank of the real spinor bundle. We prove that $M$ is locally homogeneous if it admits more than ${3/4}N$ independent Killing spinors with the same Killing number, unless $n\equiv 1 \pmod 4$ and $s\equiv 3 \pmod 4$. We also prove that $M$ is locally homogeneous if it admits $k_+$ independent Killing spinors with Killing number $λ$ and $k_-$ independent Killing spinors with Killing number $-λ$ such that $k_++k_->{3/2}N$, unless $n\equiv s\equiv 3\pmod 4$. Similarly, a pseudo-Riemannian manifold with more than ${3/4}N$ independent \emph{conformal} Killing spinors is \emph{conformally} locally homogeneous. For (positive or negative) definite metrics, the bounds ${3/4}N$ and ${3/2}N$ in the above results can be relaxed to ${1/2}N$ and $N$, respectively. Furthermore, we prove that a pseudo-Riemannnian spin manifold with more than ${3/4}N$ parallel spinors is flat and that ${1/4}N$ parallel spinors suffice if the metric is definite. Similarly, a Riemannnian spin manifold with more than ${3/8}N$ Killing spinors with the Killing number $λ\in \bR$ has constant curvature $4λ^2$. For Lorentzian or negative definite metrics the same is true with the bound ${1/2}N$. Finally, we give a classification of (not necessarily complete) Riemannian manifolds admitting Killing spinors, which provides an inductive construction of such manifolds.
Mechanical properties of plasma membrane vesicles correlate with lipid order, viscosity and cell density
Creators: name: Steinkühler, Jan
name: Sezgin, Erdinc
name: Urbančič, Iztok
name: Eggeling, Christian
name: Dimova, Rumiana
Publisher: name: Berlin : Nature Publishing
Year: 2019
Subjects: subject: plasma membrane
subject: molecular composition
subject: measuring
subject: 570

description: Regulation of plasma membrane curvature and composition governs essential cellular processes. The material property of bending rigidity describes the energetic cost of membrane deformations and depends on the plasma membrane molecular composition. Because of compositional fluctuations and active processes, it is challenging to measure it in intact cells. Here, we study the plasma membrane using giant plasma membrane vesicles (GPMVs), which largely preserve the plasma membrane lipidome and proteome. We show that the bending rigidity of plasma membranes under varied conditions is correlated to readout from environment-sensitive dyes, which are indicative of membrane order and microviscosity. This correlation holds across different cell lines, upon cholesterol depletion or enrichment of the plasma membrane, and variations in cell density. Thus, polarity- and viscosity-sensitive probes represent a promising indicator of membrane mechanical properties. Additionally, our results allow for identifying synthetic membranes with a few well defined lipids as optimal plasma membrane mimetics.
Estimation of Spatial Deformation for Nonstationary Processes via Variogram Alignment
Creators: name: Qadir, Ghulam A.
name: Sun, Ying
name: Kurtek, Sebastian
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences

description: In modeling spatial processes, a second-order stationarity assumption is often made. However, for spatial data observed on a vast domain, the covariance function often varies over space, leading to a heterogeneous spatial dependence structure, therefore requiring nonstationary modeling. Spatial deformation is one of the main methods for modeling nonstationary processes, assuming the nonstationary process has a stationary counterpart in the deformed space. The estimation of the deformation function poses severe challenges. Here, we introduce a novel approach for nonstationary geostatistical modeling, using space deformation, when a single realization of the spatial process is observed. Our method is based on aligning regional variograms, where warping variability of the distance from each subregion explains the spatial nonstationarity. We propose to use multi-dimensional scaling to map the warped distances to spatial locations. We assess the performance of our new method using multiple simulation studies. Additionally, we illustrate our methodology on precipitation data to estimate the heterogeneous spatial dependence and to perform spatial predictions.
Effect of Stacking Fault Energy on Microstructure and Texture Evolution during the Rolling of Non-Equiatomic CrMnFeCoNi High-Entropy Alloys
Creators: name: Dan Sathiaraj, G.
name: Kalsar, Rajib
name: Suwas, Satyam
name: Skrotzki, Werner
Publisher: name: Basel : MDPI
Year: 2020
Subjects: subject: Cold-rolling
subject: Cryo-rolling
subject: High-entropy alloy
subject: Microstructure
subject: Shear banding
subject: Texture
subject: Twinning
subject: 540

description: The evolution of microstructure and texture in three non-equiatomic CrMnFeCoNi high-entropy alloys (HEAs) with varying stacking fault energy (SFE) has been studied in up to 90% rolling reductions at both room and cryogenic temperature. All the HEAs deform by dislocation slip and additional mechanical twinning at intermediate and shear banding at high rolling strains. The microstructure is quite heterogeneous and, with strain, becomes highly fragmented. During rolling, a characteristic brass-type texture develops. Its strength increases with a decreasing SFE and the lowering of the rolling temperature. The texture evolution is discussed with regard to planar slip, mechanical twinning, and shear banding. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
title: Annual Report to Congress: Federal Alternative Motor Fuels Programs (4th : 1995)
Creators: name: Office of Renewable Energy
Publisher: name: Not Available
Year: 1995
Subjects: classificationCode: https://trt.trb.org/term/92125
subject: Federal government agencies
classificationCode: https://trt.trb.org/term/94971
subject: Alternate fuels
classificationCode: https://trt.trb.org/term/88891
subject: Transportation policy
classificationCode: https://trt.trb.org/term/91269
subject: Environmental policy
classificationCode: https://trt.trb.org/term/97476
subject: Annual reports
classificationCode: https://trt.trb.org/term/97322
subject: Data collection

description: DE 95004048
description: This annual report to Congress presents the current status of the alternative

fuel programs being conducted across the country in accordance to the

Alternative Motor Fuels Act of 1988.  These programs, which represent the most

comprehensive data collection effort ever undertaken on alternative fuels, are

beginning their fifth year.  This report summarizes tests and results from the

fourth year.  80p.
Fundamental parameters of magnetically active solar-like  stars observed by TESS
Creators: name: Di Mauro, Maria Pia
Publisher: name: Zenodo
Year: 2023
Subjects: Asteroseismology
stellar magnetic activity
stars
fundamental parameters of stars

description: We present a detailed characterization of a set of magnetically active solar-like stars by using photometric data obtained by the TESS space mission, supported by long-term spectroscopic campaigns collected by the Mount Wilson Observatory spanning nearly 3 decades. In order to determine accurate fundamental parameters, we appliedasteroseismic tools and modelling procedures, and we also considered the magnetic activity level and the presence of cycles.
Ferromagnetic resonance linewidth in ultrathin films with perpendicular magnetic anisotropy
Creators: name: Beaujour, J-M.
name: Ravelosona, D.
name: Tudosa, I.
name: Fullerton, E.
name: Kent, A. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transition metal ferromagnetic films with perpendicular magnetic anisotropy (PMA) have ferromagnetic resonance (FMR) linewidths that are one order of magnitude larger than soft magnetic materials, such as pure iron (Fe) and permalloy (NiFe) thin films. A broadband FMR setup has been used to investigate the origin of the enhanced linewidth in Ni$|$Co multilayer films with PMA. The FMR linewidth depends linearly on frequency for perpendicular applied fields and increases significantly when the magnetization is rotated into the film plane. Irradiation of the film with Helium ions decreases the PMA and the distribution of PMA parameters. This leads to a great reduction of the FMR linewidth for in-plane magnetization. These results suggest that fluctuations in PMA lead to a large two magnon scattering contribution to the linewidth for in-plane magnetization and establish that the Gilbert damping is enhanced in such materials ($α\approx 0.04$, compared to $α\approx 0.002$ for pure Fe).
УНИВЕРСИТЕТЫ СЕРГЕЯ САКСОНОВА: К 60-ЛЕТИЮ СО ДНЯ РОЖДЕНИЯ
Creators: name: Конева Надежда Викторовна
name: Сидякина Лариса Валериевна
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: Саксонов Сергей Владимирович
персоналия
ботаника
экология
образова-ние
краеведение
Институт экологии Волжского бассейна РАН
Русское ботаническое обще-ство
Русское географическое общество

description: Предпринята попытка оценить вклад в развитие культуры, науки и образования Сергея Влади-мировича Саксонова, русского естествоиспытателя, эколога, ботаника, организатора и истори-ка науки, доктора биологических наук, профессора, заслуженного деятеля науки Российской Федерации, директора Института экологии Волжского бассейна РАН – филиала Самарского федерального исследовательского центра РАН.
The non-evolving internal structure of early-type galaxies: the case study SDSS J0728+3835 at z = 0.206
Creators: name: Barnabe, Matteo
name: Auger, Matthew W.
name: Treu, Tommaso
name: Koopmans, Leon
name: Bolton, Adam S.
name: Czoske, Oliver
name: Gavazzi, Raphael
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the internal dynamical structure of the early-type lens galaxy SDSS J0728+3835 at z = 0.206. The analysis is based on two-dimensional kinematic maps extending out to 1.7 effective radii obtained from Keck spectroscopy, on lensing geometry and on stellar mass estimates obtained from multiband Hubble Space Telescope imaging. The data are modelled under the assumptions of axial symmetry supported by a two-integral distribution function (DF), by applying the combined gravitational lensing and stellar dynamics code CAULDRON, and yielding high-quality constraints for an early-type galaxy at cosmological redshifts. Modelling the total density profile as a power-law of the form rho_tot ~ 1/r^{gamma}, we find that it is nearly isothermal (logarithmic slope gamma = 2.08^{+0.04}_{-0.02}), and quite flattened (axial ratio q = 0.60^{+0.08}_{-0.03}). The galaxy is mildly anisotropic (delta = 0.08 +/- 0.02) and shows a fair amount of rotational support, in particular towards the outer regions. We determine a dark matter fraction lower limit of 28 per cent within the effective radius. The stellar contribution to the total mass distribution is close to maximal for a Chabrier initial mass function (IMF), whereas for a Salpeter IMF the stellar mass exceeds the total mass within the galaxy inner regions. We find that the combination of a NFW dark matter halo with the maximally rescaled luminous profile provides a remarkably good fit to the total mass distribution over a broad radial range. Our results confirm and expand the findings of the SLACS survey for early-type galaxies of comparable velocity dispersion (sigma_SDSS = 214 +/- 11 km/s). The internal structure of J0728 is consistent with that of local early-type galaxies of comparable velocity dispersion as measured by the SAURON project, suggesting lack of evolution in the past two billion years.
description: 13 pages, 10 figures. MNRAS in press. Revised to match accepted version
Fast Decoders for Topological Quantum Codes
Creators: name: Duclos-Cianci, Guillaume
name: Poulin, David
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a family of algorithms, combining real-space renormalization methods and belief propagation, to estimate the free energy of a topologically ordered system in the presence of defects. Such an algorithm is needed to preserve the quantum information stored in the ground space of a topologically ordered system and to decode topological error-correcting codes. For a system of linear size L, our algorithm runs in time log L compared to L^6 needed for the minimum-weight perfect matching algorithm previously used in this context and achieves a higher depolarizing error threshold.
description: 4 pages, 4 figures
title: MANABAS COAST – Living Lab Raversijde – Monitoring Soft Coastal Defences: Factual data report 2021-2023
Creators: name: Montreuil, Anne-Lise
name: Brackx, Melanka
name: Van Calster, W.
name: Verstraeten, J.
name: Dan, Sebastian
name: Verwaest, Toon
Publisher: name: Flanders Hydraulics
Year: 2023

description: In the framework of the MANABAS COAST and Living Lab Raversijde project, an intensive topo-bathymetric monitoring campaign of the soft coastal defences has started from the beginning of 2021. The aim of this report is to provide an overview of all the acquired topo-bathymetric surveys, including UAV, hand RTK-GPS and multibeam surveys for the period from 2021 to 2023, as well as to document the processing on the raw data. Also, a comparison of the bathy-topographic methods from the beach to the offshore area is presented. Finally, a description of the grain size, based on sediment samples in the nearshore area is reported. This report presents the monitoring of the soft coastal defences at Raversijde in the period from 2021 until September 2023.
description: Title : FH reports. Flanders Hydraulics: Antwerp.
Volume : 22_006_1
Issue :
Pagination : 38 + 9 p. app.
ДЕСЯТЬ ЭВРИСТИК ДЛЯ МЕЖДИСЦИПЛИНАРНЫХ ПРОЕКТОВ МОДЕЛИРОВАНИЯ
Creators: name: Крейг Николсон
name: Энтони М. Старфилд
name: Гари П. Кофинас
name: Джек А. Крузе
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: междисциплинарный
моделирование
экосистема
сотрудничество
устой-чивость
Арктика
комплексная оценка
командная работа

description: Решение комплексных экологических проблем и проблем энвайронменталистики требуют совместных междисциплинарных усилий. Общим подходом к интеграции дисциплинарных взглядов на эти проблемы является разработка имитационных моделей, в которых явно представлены связи между компонентами системы. Однако в литературе мало указаний о том, как такие модели следует разрабатывать в ходе совместной командной работы. В этой статье мы предлагаем набор эвристических правил (практических процедур), которые ре-шают ряд проблем, связанных с этой задачей, в том числе выбор членов команды, согласо-вание консенсусного взгляда на проблему исследования, модели прототипирования и уточ-нения, роль анализа чувствительности и важность командного общения. Эти эвристики воз-никли из сравнения нашего опыта работы с несколькими междисциплинарными проектами моделирования. Для иллюстрации работоспособности этих эвристик мы используем один такой опыт – проект, в котором ученые-естествоиспытатели, социологи и местные жители собрались вместе, чтобы исследовать устойчивость небольших коренных общин в Арктике.
RENAS: Prioritizing Co-Renaming Opportunities of Identifiers
Creators: name: Doi, Naoki
name: Osumi, Yuki
name: Hayashi, Shinpei
Publisher: name: arXiv
Year: 2024
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Renaming identifiers in source code is a common refactoring task in software development. When renaming an identifier, other identifiers containing words with the same naming intention related to the renaming should be renamed simultaneously. However, identifying these related identifiers can be challenging. This study introduces a technique called RENAS, which identifies and recommends related identifiers that should be renamed simultaneously in Java applications. RENAS determines priority scores for renaming candidates based on the relationships and similarities among identifiers. Since identifiers that have a relationship and/or have similar vocabulary in the source code are often renamed together, their priority scores are determined based on these factors. Identifiers with higher priority are recommended to be renamed together. Through an evaluation involving real renaming instances extracted from change histories and validated manually, RENAS demonstrated an improvement in the F1-measure by more than 0.11 compared with existing renaming recommendation approaches.
description: ICSME 2024. (C) 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Commutation relations for the electromagnetic field in the presence of dielectrics and conductors
Creators: name: Bimonte, Giuseppe
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We determine the commutation relations satisfied by the quantized electromagnetic field in the presence of macroscopic dielectrics and conductors, with arbitrary dispersive and dissipative properties. We consider in detail the case of two plane-parallel material slabs, separated by an empty gap, and we show that at all points in the empty region between the slabs, including their surfaces, the electromagnetic fields always satisfy free-field canonical equal-time commutation relations. This result is a consequence of general analyticity and fall-off properties at large frequencies satisfied by the reflection coefficients of all real materials. It is also shown that this result does not obtain in the case of conductors, if the latter are modelled as perfect mirrors. In such a case, the free-field form of the commutation relations is recovered only at large distances from the mirrors, in agreement with the findings of previous authors. Failure of perfect-mirror boundary conditions to reproduce the correct form of the commutation relations near the surfaces of the conductors, suggests that caution should be used when these idealized boundary conditions are used in investigations of proximity phenomena originating from the quantized electromagnetic field, like the Casimir effect.
description: 16 pages, no figures
Quantum random walks on the $N$-cycle subject to decoherence on the coin degree of freedom
Creators: name: Liu, Chaobin
name: Petulante, Nelson
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For a discrete time quantum walk (QW) on the $N$-cycle, allowing for decoherence on the coin, we derive a number of new results, including an explicit formula for the position probability distribution. For a QW of this type, we show that the mixing behavior tends, in the long-run, to a uniform distribution, regardless of the initial state of the system and irrespective of the parity of the number of nodes $N$. These results confirm the findings of previous authors who arrived at similar conclusions through extensive numerical simulations. In particular, we infer that the mixing time $\bar{M(ε)}$ for the time-everaged probability distribution is of order no greater than $O(N^2/ε)$.
КОММЕНТАРИЙ ПЕРЕВОДЧИКА СТАТЬИ ФИШЕРА 1948 г.
Creators: name: Розенберг Геннадий Самуилович
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: Рональд Фишер
Трофим Лысенко
генетика
наследственность
эволюция

description: Дан небольшой комментарий к переводу статьи Рональда Фишера "What sort of man is Lysenko?" (1948). Кратко обсуждаются последствия печально-знаменитой сессии ВАСХНИЛ.
Petri, Franz, Zum Stand der Diskussion über die fränkische Landnahme und die Entstehung der germanisch-romanischen Sprachgrenze
Creators: name: Steinhausen, Josef
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Rezension zu: Petri, Franz, Zum Stand der Diskussion über die fränkische Landnahme und die Entstehung der germanisch-romanischen Sprachgrenze. Darmstadt : Wissenschaftliche Buchgemeinschaft, 1954. 116 S. - (Libelli ; 12)
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 23 Nr. 1/2 (1954/1955): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Ewig, Eugen, Trier im Merowingerreich : Civitas, Stadt, Bistum
Creators: name: Laufner, Richard
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Rezension zu: Eugen Ewig, Trier im Merowingerreich. Civitas, Stadt, Bistum. (Zugleich erschienen in Trierer Zeitschrift 21, 1952 [ausgegeben 1953]). 367 S., 6 Karten. Paulinus-Verlag, Trier 1954. Beide Ausgaben mit Schutzumschlag.
description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 23 Nr. 1/2 (1954/1955): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
TEKISLIKDA IKKINCHI TARTIBLI CHIZIQ ELLIPS URINMA TENGLAMASINI ZAMONAVIY USULLARDA YECHISH METODIKASI
Creators: name: Muhammadiyeva, Maftuna
name: Ahmadullayeva, Sabina
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqola tekislikda ikkinchi tartibli egri chiziq ellips urinma tenglamasi zamonaviy usullarda yechish metodikasi geometriya va differinsial tenglama fanini o’rganishda ko’proq natijalarga olib kelishiga bag’ishlangan.O’quvchilarning geometrik fikrlashini va tasavvurini rivojlantirishda differinsial usullarda yechish metodlari atroflicha o’rganilgan. Ushbu maqola o’rganuvchilarga nisbatan yaxshiroq tushunish va yaxshi natijalarga erishishga yordam beradi.
Effect of elevation of the legs on recovery time of Varsity ice hockey players
Creators: name: Thomas, Norman Raymond
Publisher: name: University of British Columbia
Year: 2011

description: The purpose of this study was as follows: 1. To determine if the recovery heart rate of ice hockey players is affected by elevation of the legs; 2. To determine the subjective recovery time and to calculate the correlation between subjective and objective recovery times; 3. To determine the heart rate at four and one-half minutes after exercise. Eight of an initial twelve members of the University of British Columbia Varsity Ice Hockey Team, ranging in age from twenty to twenty-seven years, participated in the study. Age, weight, height and position played were obtained for all subjects. Through radio telemetry, in conjunction with an electrocardioscribe and a heart rate monitor, the following data was obtained: a) resting heart rate b) terminal heart rate c) recovery heart rate d) recovery half-time e) post-exercise recovery rate f) subjective recovery time Each subject was required to skate six times: three trials as a control subject, which recovered in normal sitting position, and three times as an experimental subject, which recovered in the recumbent position with the legs raised on a bench twenty inches high. Reliability measurements performed using the Pearson Product-Moment Method resulted in an r = 0.420 for resting heart rates, and an r = 0.649 for terminal heart rates. A correlation between recovery half-times and the subjective recovery times for each of the six trials was calculated. A "t" test for correlated samples was performed between the means of the trials of the control group and between the means of the trials of the experimental group recovery half-times. A "t" test was then performed to determine the significance of the difference between the mean of the means of the recovery half-times of the control and experimental groups. A t value of 2.79, significant at the .05 level of confidence was found. Finally a test of significance was performed on the post-exercise recovery heart rates of the control and experimental groups. On the basis of the statistical analysis and with respect to the small sample studied, the following conclusions appear warranted: 1. Elevation of the legs significantly reduced the recovery time at the .05 level of confidence. 2. The reliabilities of resting and terminal heart rates were too low to be of significant value. 3. The subjects were not able to predict, with any degree of accuracy, when they had recovered sufficiently to begin another skating period. 4. Elevation of the legs and normal sitting produced no significant difference in the heart rates at the end of the four and one-half minute recovery period.
Slow-roll Extended Quintessence
Creators: name: Chiba, Takeshi
name: Siino, Masaru
name: Yamaguchi, Masahide
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the slow-roll conditions for a non-minimally coupled scalar field (extended quintessence) during the radiation/matter dominated era extending our previous results for thawing quintessence. We find that the ratio $\ddotϕ/3H\dotϕ$ becomes constant but negative, in sharp contrast to the ratio for the minimally coupled scalar field. We also find that the functional form of the equation of state of the scalar field asymptotically approaches that of the minimally coupled thawing quintessence.
description: 11 pages, 4 figures, references added, to appear in Phys. Rev. D
Ethics of Reproducibility
Creators: name: Gulden, Bart
Publisher: name: Zenodo
Year: 2023
Subjects: Scenario
Research
Integrity
Reproducability
AI

description: This scenario presents a hypothetical narrative concerning doing research in the continously changing field of AI, linking this to the reproducibility of research.

It focuses on what retaining or changing the methodological structure of the research means for the reproducability of research. 

It also posits some questions on how to deal with this problem.
Zu den Quaderinschriften der Porta nigra in Trier
Creators: name: Steinhausen, Josef
Publisher: name: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete
Year: 2020

description: Trierer Zeitschrift - Archäologie und Kunst des Trierer Landes und seiner Nachbargebiete, Bd. 23 Nr. 1/2 (1954/1955): Trierer Zeitschrift : für Geschichte und Kunst des Trierer Landes und seiner Nachbargebiete
Mapping out atom-wall interaction with atomic clocks
Creators: name: Derevianko, A.
name: Obreshkov, B.
name: Dzuba, V. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We explore a feasibility of measuring atom-wall interaction using atomic clocks based on atoms trapped in engineered optical lattices. Optical lattice is normal to the wall. By monitoring the wall-induced clock shift at individual wells of the lattice, one would measure a dependence of the atom-wall interaction on the atom-wall separation. We rigorously evaluate the relevant clock shifts and show that the proposed scheme may uniquely probe the long-range atom-wall interaction in all three qualitatively-distinct regimes of the interaction: van der Waals (image-charge interaction), Casimir-Polder (QED vacuum fluctuations) and Lifshitz (thermal bath fluctuations). The analysis is carried out for atoms Mg, Ca, Sr, Cd, Zn, and Hg, with a particular emphasis on Sr clock.
description: 4 pages, 4 figures
Invariant classification and the generalised invariant formalism: conformally flat pure radiation metrics, with zero cosmological constant
Creators: name: Bradley, Michael
name: Edgar, S. Brian
name: Ramos, M. P. Machado
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Metrics obtained by integrating within the generalised invariant formalism are structured around their intrinsic coordinates, and this considerably simplifies their invariant classification and symmetry analysis. We illustrate this by presenting a simple and transparent complete invariant classification of the conformally flat pure radiation metrics (except plane waves) in such intrinsic coordinates; in particular we confirm that the three apparently non-redundant functions of one variable are genuinely non-redundant, and easily identify the subclasses which admit a Killing and/or a homothetic Killing vector. Most of our results agree with the earlier classification carried out by Skea in the different Koutras-McIntosh coordinates, which required much more involved calculations; but there are some subtle differences. Therefore, we also rework the classification in the Koutras-McIntosh coordinates, and by paying attention to some of the subtleties involving arbitrary functions, we are able to obtain complete agreement with the results obtained in intrinsic coordinates. In particular, we have corrected and completed statements and results by Edgar and Vickers, and by Skea, about the orders of Cartan invariants at which particular information becomes available.
description: Extended version of GRG publication, with some typos etc corrected
Interactions of UHE cosmic ray nuclei with radiation during acceleration: consequences on the spectrum and composition
Creators: name: Allard, D.
name: Protheroe, R. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper, we study the diffusive shock acceleration of cosmic-ray protons and nuclei, taking into account all the relevant interaction processes with photon backgrounds. We investigate how the competition between protons and nuclei is modified by the acceleration parameters such as the acceleration rate, its rigidity dependence, the photon density and the confinement capability of the sources. We find that in the case of interaction-limited acceleration processes protons are likely to be accelerated to higher energies than nuclei, whereas for confinement-limited acceleration nuclei are accelerated to higher energies than protons. Finally, we discuss our results in the context of possible astrophysical accelerators, and in the light of recent cosmic-ray data.
description: 14 pages, 11 figures A few paragraphs and one figure added for clarity, figures slightly redesigned, no changes in the results
Case study concerning time-motion in athletics
Creators: name: McCallum, Malcolm Duncan
Publisher: name: University of British Columbia
Year: 2011

description: In this study, three major questions were investigated with respect to the amount of time i-n motion spent during four home college basketball games played by the University of British Columbia Thunderbirds. First, the amount of time in motion spent on offense was compared to the amount of time in motion spent on defense. Second, all the positions on offense and defense were compared to the amount of time spent in motion and thirdly, the differences of time spent in motion between the full court press and no press were calculated. The subjects used for this study were ten male athletes on the 1967-68 University of British Columbia Thunderbird Basketball team. Each team position was tested a total of seven times; twice to perfect the use of stop watches during exhibition games, once to run a percentage of error test on one forward position and four times to obtain scores utilized in this study. This sequence of testing was followed to give the testers time to become proficient in the use of the stop watches. The data was analyzed in order to obtain: a) the differences between offensive and defensive time spent in motion. b) the differences between each of the five positions regarding time spent in motion, offensively and defensively. c) the difference in time spent in motion between the full court press and no press, both offensively and defensively.
ИССЛЕДОВАНИЕ БИОЛОГИЧЕСКОЙ ДЕГРАДАЦИИ ЭЛЕМЕНТНОГО ФОСФОРА
Creators: name: Миндубаев Антон Зуфарович
name: Бабынин Эдуард Викторович
name: Волошина Александра Дмитриевна
name: Сапармырадов Керемли Ашырмухаммедович
name: Бадеева Елена Казимировна
name: Минзанова Салима Тахиятулловна
name: Миронова Любовь Геннадьевна
name: Хаяров Хасан Рафаэлевич
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: биодеградация
белый фосфор
красный фосфор
защита окружающей среды
химическое загрязнение
Aspergillus niger
Streptomyces sampsonii

description: Впервые наблюдался рост микроорганизмов различных таксономических групп (грибов, стреп-томицетов и бактерий) в культуральных средах, содержащих в качестве источника фосфора элементный (белый и красный) фосфор. Это первый известный пример включения элементного фосфора в биосферный круговорот фосфора. Самая высокая концентрация, применённая в данном исследовании, соответствует превышению ПДК белого фосфора в сточных водах в 5000 раз, а в питьевой воде – в 100000000 раз! Впервые проведена селекция на рост устойчиво-сти культур. Мы идентифицировали микроорганизмы, растущие на белом фосфоре, как новые штаммы Aspergillus niger и Streptomyces sampsonii, которым были присвоены номера A. niger АМ1 и S. sampsonii А8. Показано, что штаммы грибов Aspergillus niger адаптируются к токси-канту лучше, чем бактерии.
ТАКСОНОМИЧЕСКАЯ СТРУКТУРА АЛЬГОФЛОРЫ ПЛАНКТОНА РЕКИ САМАРА (БАССЕЙН САРАТОВСКОГО ВОДОХРАНИЛИЩА)
Creators: name: Горохова Ольга Геннадьевна
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: альгофлора планктона
таксономический состав
р. Самара
Волжский бассейн

description: Дана характеристика таксономической структуры альгофлоры планктона р. Самара. Иденти-фицировано 160 видов и внутривидовых таксонов водорослей из 8 отделов, ведущая роль при-надлежит Bacillariophyta, Chlorophyta, а также Euglenophyta. В составе альгофлоры реки преоб-ладают планктонные широко распространенные формы, обитатели пресных, нейтральных и слабощелочных вод. Приведён список видов, разновидностей и форм водорослей.
ЭКОЛОГО-БИОЛОГИЧЕСКАЯ ХАРАКТЕРИСТИКА ФЛОРЫ ПОЙМЫ РЕКИ ТАТЬЯНКИ (САМАРСКАЯ ОБЛАСТЬ)
Creators: name: Митрошенкова Анна Евгеньевна
name: Ильина Валентина Николаевна
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: флора
река Татьянка
Самарская область

description: Приводятся результаты инвентаризации флоры поймы реки Татьянка (Самарская область). За-регистрировано 114 представителей сосудистых растений. Они принадлежат к 80 родам, 34 се-мействам и 2 отделам. Во флоре доминирует луговая (41 вид; 40,0%) и лесостепная (19 видов; 16,7%) группы растений. Экологический анализ по отношению к водному режиму показал пре-обладание мезофитов – 66 видов (57,9%). Флора поймы реки Татьянки не содержит растений, включенных в Красную книгу Самарской области. Современное состояние природного ком-плекса свидетельствует о сильной антропогенной трансформации растительного покрова.
ДОЛГОВРЕМЕННЫЕ НАБЛЮДЕНИЯ НА СТАЦИОНАРНЫХ ПЛОЩАДКАХ В СЕВЕРНОЙ ЧАСТИ ВОЛГО-АХТУБИНСКОЙ ПОЙМЫ (1973-2019 гг.)
Creators: name: Чувашов Андрей Викторович
name: Николайчук Людмила Федоровна
name: Голуб Валентин Борисович
name: Мальцев Михаил Васильевич
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: долина Нижней Волги
регулирование водного стока
ксерофитизация расти-тельности

description: В статье подведены результаты многолетних геоботанических наблюдений на ключевых участках в северной части Волго-Ахтубинской поймы.
РЕЗУЛЬТАТЫ, ПЛАНЫ И ПЕРСПЕКТИВЫ РАБОТЫ ЛАБОРАТОРИИ ГЕРПЕТОЛОГИИ И ТОКСИНОЛОГИИ ИНСТИТУТА ЭКОЛОГИИ ВОЛЖСКОГО БАССЕЙНА РАН
Creators: name: А. А. Кленина
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: Институт экологии Волжского бассейна РАН
лаборатория герпето-логии и токсинологии
черепахи
змеи
ящерицы
змеиные яды

description: В статье представлена информация о деятельности лаборатории герпетологии и ток-синологии Института экологии Волжского бассейна РАН. Подведены краткие итоги работы за последние пять лет, приведены планы намечаемых исследований и перспек-тивы использования полученных результатов.
Aharonov-Bohm Radiation
Creators: name: Jones-Smith, Katherine
name: Mathur, Harsh
name: Vachaspati, Tanmay
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Other Condensed Matter (cond-mat.other)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A solenoid oscillating in vacuum will pair produce charged particles due to the Aharonov-Bohm (AB) interaction. We calculate the radiation pattern and power emitted for charged scalar particles. We extend the solenoid analysis to cosmic strings, and find enhanced radiation from cusps and kinks on loops. We argue by analogy with the electromagnetic AB interaction that cosmic strings should emit photons due to the gravitational AB interaction of fields in the conical spacetime of a cosmic string. We calculate the emission from a kink and find that it is of similar order as emission from a cusp, but kinks are vastly more numerous than cusps and may provide a more interesting observational signature.
description: Accepted for publication in Phys Rev D
К ИЗУЧЕНИЮ ГЕЛЬМИНТОВ НАСТОЯЩИХ ЯЩЕРИЦ (REPTILIA, LACERTIDAE) В МОРДОВСКОМ ЗАПОВЕДНИКЕ. СООБЩЕНИЕ 1. ГЕЛЬМИНТЫ ПРЫТКОЙ ЯЩЕРИЦЫ
Creators: name: Кириллов Александр Александрович
name: Бакиев Андрей Геннадьевич
name: Горелов Роман Андреевич
name: Кирилова Надежда Юрьевна
Publisher: name: Самарская Лука: проблемы региональной и глобальной экологии
Year: 2020
Subjects: гельминты
Nematoda
Trematoda
прыткая ящерица
Lacerta agilis
Мордовский государственный заповедник

description: Продолжено изучение гельминтофауны прыткой ящерицы в Мордовском государ-ственном природном заповеднике. В июне 2019 г. исследована 21 особь Lacerta agilis. У рептилий зарегистрирован всего один вид гельминтов – нематода Oswaldocruzia filiformis. Экстенсивность инвазии ящериц составила 33,3%, интенсивность инвазии – 1–12 экз., индекс обилия паразитов – 2,0 экз. К настоящему времени известный состав гельминтофауны прыткой ящерицы из Мордовского заповедника насчитывает 3 вида паразитов. Для гельминтов указывается их систематическое положение, локализация, места обнаружения и географическое распространение.