cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
EFFECTIVENESS IN ADVERSITY: UNPACKING STRATEGIES FOR STUDENT-MANAGEMENT CONFLICT RESOLUTION (1999-2009) AT THE UNIVERSITY FOR DEVELOPMENT STUDIES
Creators: name: Yaw, Akparep
name: Akua, Yaw Akparep
Publisher: name: Zenodo
Year: 2024
Subjects: Conflict Management
Organizational Conflict
Conflict Resolution
Root Causes of Conflict Proactive Conflict Handling

description: Conflict within organizational settings is an inevitable facet of human interaction, and its effective management is imperative for sustained productivity and positive work environments. This abstract delves into the multifaceted realm of conflict management, emphasizing the necessity of adeptly handling conflicts rather than eradicating them. Drawing from the perspectives of renowned scholars and practitioners in the field, the narrative navigates the intricate landscape of conflict management, highlighting key principles and strategies.

Ross (1993) succinctly posits that the crux of the issue lies not in the existence of conflict but in how it is navigated and managed. The inevitability of conflicts in organizational life is underscored by Afful-Broni (2012), who contends that managing conflicts is not a mere option but an essential mandate. Olajide (2011) further defines conflict management as a systematic process aimed at mitigating the negative impact of conflicts by engaging with involved parties and implementing various measures.

Faniran and Akintayo (2012) contribute to the discourse by characterizing conflict management as a proactive process that involves defusing antagonism and fostering agreements among conflicting parties. The underlying principle, as asserted by Aseka (2001), posits that true conflict resolution addresses the inherent needs of all involved parties. Echoing this sentiment, Havenga and Visagie (2011) assert that organizational conflicts demand solutions that identify and address root causes, satisfying all parties involved to prevent future recurrence.

Nelson and Quick (2001) emphasize the pervasive nature of conflict within organizations and advocate for a comprehensive understanding of its myriad sources to facilitate effective management. Mayer (2008) adds a valuable perspective, suggesting that developing a usable framework for comprehending the causes of conflict enables the creation of a navigational map, guiding individuals through the conflict resolution process.

In conclusion, this abstract advocates for a nuanced approach to conflict within organizations, positioning conflict management as an essential competency. By drawing on diverse perspectives and principles, the narrative underscores the significance of proactive conflict management in fostering healthier organizational dynamics
Phonon-Induced Dephasing in Quantum Dot-Cavity QED
Creators: name: Morreau, A.
name: Muljarov, E. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a semi-analytic and asymptotically exact solution to the problem of phonon-induced decoherence in a quantum dot-microcavity system. Particular emphasis is placed on the linear polarization and optical absorption, but the approach presented herein may be straightforwardly adapted to address any elements of the exciton-cavity density matrix. At its core, the approach combines Trotter's decomposition theorem with the linked cluster expansion. The effects of the exciton-cavity and exciton-phonon couplings are taken into account on equal footing, thereby providing access to regimes of comparable polaron and polariton timescales. We show that the optical decoherence is realized by real phonon-assisted transitions between different polariton states of the quantum dot-cavity system, and that the polariton line broadening is well-described by Fermi's golden rule in the polariton frame. We also provide purely analytic approximations which accurately describe the system dynamics in the limit of longer polariton timescales.
Nonlinear effects in Compton scattering at photon colliders
Creators: name: Galynskii, M.
name: Kuraev, E.
name: Levchuk, M.
name: Telnov, V.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The backward Compton scattering is a basic process at future higher energy photon colliders. To obtain a high probability of e->gamma conversion the density of laser photons in the conversion region should be so high that simultaneous interaction of one electron with several laser photons is possible (nonlinear Compton effect). In this paper a detailed consideration of energy spectra, helicities of final photons and electrons in nonlinear backward Compton scattering of circularly polarized laser photons is given. Distributions of gamma-gamma luminosities with total helicities 0 and 2 are investigated. Very high intensity of laser wave leads to broadening of the energy (luminosity) spectra and shift to lower energies (invariant masses). Beside complicated exact formulae, approximate formulae for energy spectrum and polarization of backscattered photons are given for relatively small nonlinear parameter xi^2 (first order correction). All this is necessary for optimization of the conversion region at photon colliders and study of physics processes where a sharp edge of the luminosity spectrum and monochromaticity of collisions are important.
description: 21 pages, Latex, 6 figures(.ps), Talk at International Workshop on High Energy Photon Colliders; June 14-17, 2000, DESY, Hamburg, Germany; to be published in Nucl. Instr. and Methods A
MOESM1 of p53 modeling as a route to mesothelioma patients stratification and novel therapeutic identification
Creators: name: Tian, Kun
name: Bakker, Emyr
name: Hussain, Michelle
name: Guazzelli, Alice
name: Hasen Alhebshi
name: Meysami, Parisa
name: Constantinos Demonacos
name: Jean-Marc Schwartz
name: Mutti, Luciano
name: Krstic-Demonacos, Marija
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Additional file 1: Table S1. ETO vs control (ctrl) differentially expressed genes.
MAP661.pdf
Creators: name: Coffey, Grant
Publisher: name: Crow Canyon Archaeological Center
Year: 2019
Subjects: Southwestern United States
Terminal Pueblo III
Ancestral Pueblo
Funerary and Burial Structures or Features
Non-Domestic Structures
Domestic Structure or Architectural Complex
Pollen
Ceramic
Chipped Stone
Dating Sample
Fauna
Ground Stone
Human Remains
Macrobotanical
Mineral
Architectural Documentation
Archaeological Overview
Site Evaluation / Testing

description: add description
MAP58.pdf
Creators: name: Coffey, Grant
Publisher: name: Crow Canyon Archaeological Center
Year: 2019
Subjects: Southwestern United States
Pueblo II-III
Ancestral Pueblo
Funerary and Burial Structures or Features
Non-Domestic Structures
Domestic Structure or Architectural Complex
Pollen
Ceramic
Chipped Stone
Dating Sample
Fauna
Ground Stone
Human Remains
Macrobotanical
Architectural Documentation
Archaeological Overview
Site Evaluation / Testing

description: add description
Thermodynamics - a valuable approach to multifragmentation?
Creators: name: Nebauer, R.
name: Aichelin, J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Since years it has been vividly debated whether multifragmentation is a thermal or a dynamical process. Recently it has been claimed \cite{toek1,po} that new data allow to decide this question. The conclusion, drawn in these papers, are, however, opposite. Whereas \cite{toek1} states that the behavior of different observables as a function of the fragment multiplicity excludes a thermal origin of the fragments in \cite{po} it has been argued that data show a first order phase transition between a liquid and a gaseous phase. It is the aim of this paper to show that both conclusions are premature. They are based on the salient assumption, that the system is sufficiently large to be susceptible to a canonical description. We will show that this is not the case. A micro canonical approach describes the data as good as dynamical calculations. Hence the quest for the physical origin of multifragmentation continues.
description: 17 pages, 4 figures, completely revised, accepted for publication in NPA
Gaussian fluctuation corrections to a mean-field theory of complex hidden order in URu$_2$Si$_2$
Creators: name: Shen, Pengtao
name: Dzero, Maxim
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Hidden-order phase transition in the heavy-fermion superconductor URu$_2$Si$_2$ exhibits the mean-field-like anomaly in temperature dependence of heat capacity. Motivated by this observation, here we explore the impact of the complex order parameter fluctuations on the thermodynamic properties of the hidden order phase. Specifically, we employ the mean-field theory for the hidden order which describes the hidden order parameter by an average of the hexadecapole operator. We compute the gaussian fluctuation corrections to the mean-field theory equations including both the fluctuations due to 'hidden order' as well as antiferromagnetic order parameters. We find that the gaussian fluctuations lead to the smearing of the second-order transition rendering it to become the first-order one. The strength of the first-order transition is weakly dependent on the strength of underlying antiferromagnetic exchange interactions.
description: 5 pages, 3 figures
Why the brain knows more than we do: non-conscious representations and their role in the construction of conscious experience
Creators: name: Dresp-Langley, Birgitta
Publisher: name: arXiv
Year: 2018
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Scientific studies have shown that non-conscious stimuli and representations influence information processing during conscious experience. In the light of such evidence, questions about potential functional links between non-conscious brain representations and conscious experience arise. This article discusses a neural coding model capable of explaining how statistical learning mechanisms in dedicated resonant circuits could generate specific temporal activity traces of non-conscious representations in the brain. How reentrant signaling, top-down matching, and statistical coincidence of such activity traces may lead to the progressive consolidation of temporal patterns that constitute the neural signatures of conscious experience in networks extending across large distances beyond functionally specialized brain regions is then explained.
MOESM17 of p53 modeling as a route to mesothelioma patients stratification and novel therapeutic identification
Creators: name: Tian, Kun
name: Bakker, Emyr
name: Hussain, Michelle
name: Guazzelli, Alice
name: Hasen Alhebshi
name: Meysami, Parisa
name: Constantinos Demonacos
name: Jean-Marc Schwartz
name: Mutti, Luciano
name: Krstic-Demonacos, Marija
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: 60506 Virology

description: Additional file 17: Figure S2. TP53 protein is stabilized by DNA damage in Mero-14 cells. (A) Mero-14 cells were untreated or treated with etoposide (20 µM) for 24 h, after which cells were lysed and protein harvested and subjected to Western blotting using antibodies against TP53 and actin. (B) ImageJ quantification of TP53 expression in Mero-14 cells following etoposide treatment. (C) Sequence alignment of the coding sequence of the TP53 gene (exons 1–11) from Mero-14 cell line.
РАЗРАБОТКА И РЕАЛИЗАЦИЯ ГОСУДАРСТВЕННЫХ ИНИЦИАТИВ ПО ПРОТИВОДЕЙСТВИЮ КОРРУПЦИИ
Creators: name: Нуруллаев, Фаррух
Publisher: name: Zenodo
Year: 2024

description: В данной статье анализируются вредных последствий коррупции, как она может подорвать социальную сплоченность, подорвать доверие общественности, препятствовать доступу к критически важным услугам, нарушить процессы разработки политики и отвлечь важные ресурсы от столь необходимых проектов развития, а также негативные экономические последствия коррупции, включая сокращение прямых иностранных инвестиций, будут изучены барьеры экономического роста и усиление неравенства, а также предложены меры по разработке и реализации государственных инициатив по борьбе с коррупцией.
A perturbative perspective on self-supporting wormholes
Creators: name: Fu, Zicao
name: Grado-White, Brianna
name: Marolf, Donald
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We describe a class of wormholes that generically become traversable after incorporating gravitational back-reaction from linear quantum fields satisfying appropriate (periodic or anti-periodic) boundary conditions around a non-contractible cycle, but with natural boundary conditions at infinity (i.e., without additional boundary interactions). The class includes both asymptotically flat and asymptotically AdS examples. Simple asymptotically AdS$_3$ or asymptotically AdS$_3 \times S^1$ examples with a single periodic scalar field are then studied in detail. When the examples admit a smooth extremal limit, our perturbative analysis indicates the back-reacted wormhole remains traversable at later and later times as this limit is approached. This suggests that a fully non-perturbative treatment would find a self-supporting eternal traversable wormhole. While the general case remains to be analyzed in detail, the likely relation of the above effect to other known instabilities of extreme black holes may make the construction of eternal traversable wormholes more straightforward than previously expected.
description: Minor corrections (including fixing a factor of 2 in several formulas/plots)
Free Field Realization of $WBC_{n}$ and $WG_{2}$ algebras
Creators: name: Ito, Katsushi
name: Terashima, Seiji
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the BRST-cohomology in the quantum hamiltonian reduction of affine Lie algebras of non-simply laced type. We obtain the free field realization of the $W{\bf g}$-algebra for $\bg=B_{2}$, $B_{3}$, $C_{3}$ and $G_{2}$. The $WC_{3}$ algebra is shown to be equal to the $WB_{3}$ algebra at the quantum level by duality transformation.
description: 14 pages, latex
Differing Climatic Mass Balance Evolution Across Svalbard Glacier Regions Over 1900–2010
Creators: name: Möller, Marco
name: Kohler, Jack
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: glacier mass balance
subject: climate change
subject: modeling
subject: Svalbard
subject: Arctic
subject: 550 Geowissenschaften

description: Relatively little is known about the glacier mass balance of Svalbard in the first half of the twentieth century. Here, we present the first century-long climatic mass balance time series for the Svalbard archipelago. We use a parameterized mass balance model forced by statistically downscaled ERA-20C data to model climatic mass balance for all glacierized areas on Svalbard with a 250 m resolution for the period 1900–2010. Results are presented for the archipelago as a whole and separately for nine different subregions. We analyze the extent to which climatic mass balance in the different subregions mirror the temporal evolution of the climate warming signal, especially during the early twentieth century Arctic warming episode. The spatially averaged mean annual climatic mass balance for all Svalbard is balanced at −0.002 m w.e. with an associated mean equilibrium line altitude of 425 m a.s.l. When also taking calving fluxes into account, this status leads to an archipelago-wide cumulative mass balance of −16.9 m w.e. over the study period, equaling a sea level equivalent of ~1.6 mm. The long-term evolution of climatic mass balance is largely governed by ablation variability. Refreezing contributes 34% to the archipelago-wide mass gain on average. Considerable variability is evident across Svalbard, with predominantly positive climatic mass balances in the northeastern parts of the archipelago and mostly negative ones in the western and southern parts. The archipelago-wide climatic mass balance shows a statistically significant trend of −0.021 m w.e. per decade and the associated equilibrium line altitude rises with a likewise significant trend of +3.0 m a.s.l. per decade. Spatial variability of the equilibrium line is such that the lowest altitudes are reached across the eastern islands of the archipelago and the highest ones in the central parts of Spitsbergen.
Exceptional points and photonic catastrophe
Creators: name: Longhi, Stefano
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Exceptional points (EPs) with a global collapse of pairs of eigenfunctions are shown to arise in two locally-coupled and spatially-extended optical structures with balanced gain and loss. Global collapse at the EP deeply changes light propagation, which becomes very sensitive to small changes of initial conditions or system parameters, similarly to what happens in models of classical or quantum catastrophes. The implications of global collapse for light behavior are illustrated by considering discrete beam diffraction and Bloch oscillation catastrophe in coupled waveguide lattices.
description: 5 pages, 4 figures
MAP75.pdf
Creators: name: Coffey, Grant
Publisher: name: Crow Canyon Archaeological Center
Year: 2019
Subjects: Southwestern United States
Pueblo II-III
Ancestral Pueblo
Funerary and Burial Structures or Features
Non-Domestic Structures
Domestic Structure or Architectural Complex
Pollen
Ceramic
Chipped Stone
Dating Sample
Fauna
Ground Stone
Human Remains
Macrobotanical
Architectural Documentation
Archaeological Overview
Site Evaluation / Testing

description: add description
Oral history interview with Daniel Wolf 1993
Publisher: name: Columbia University
Year: 2019
Subjects: Journalists

description: Childhood and education; involvement in World War II; early years as editor of the Village Voice; introduction to Edward I. Koch [Koch]; role in Koch's campaign for mayor of New York City, 1977; experiences as Special Assistant to Mayor Koch; Koch's relationshp with black community and with press; corruption during Koch's mayoral tenure; social functions at Gracie Mansion; appraisal of Koch's strengths and weaknesses as mayor.
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome III, Cart. 187 (11 H 72), f. 0065v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome III, Archives départementales de la Côte-d'Or, Cart. 187 (11 H 72), f. 0065v, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome III, Archives départementales de la Côte-d'Or, Cart. 187 (11 H 72), f. 0065v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Atomic Scale Measurement of Polar Entropy
Creators: name: Mukherjee, Debangshu
name: Prokhorenko, Sergei
name: Miao, Leixin
name: Wang, Ke
name: Bousquet, Eric
name: Gopalan, Venkatraman
name: Alem, Nasim
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Entropy is a fundamental thermodynamic quantity that is a measure of the accessible microstates available to a system, with the stability of a system determined by the magnitude of the total entropy of the system. This is valid across truly mind boggling length scales - from nanoparticles to galaxies. However, quantitative measurements of entropy change using calorimetry are predominantly macroscopic, with direct atomic scale measurements being exceedingly rare. Here for the first time, we experimentally quantify the polar configurational entropy (in meV/K) using sub-ångström resolution aberration corrected scanning transmission electron microscopy. This is performed in a single crystal of the prototypical ferroelectric $\mathsf{LiNbO_3}$ through the quantification of the niobium and oxygen atom column deviations from their paraelectric positions. Significant excursions of the niobium - oxygen polar displacement away from its symmetry constrained direction is seen in single domain regions which increases in the proximity of domain walls. Combined with first principles theory plus mean field effective Hamiltonian methods, we demonstrate the variability in the polar order parameter, which is stabilized by an increase in the magnitude of the configurational entropy. This study presents a powerful tool to quantify entropy from atomic displacements and demonstrates its dominant role in local symmetry breaking at finite temperatures in classic, nominally Ising ferroelectrics.
description: 23 pages, 21 figures (5 main, 16 supplemental)
Climate change mitigates negative effects of increased grazing pressure on grassland vegetation in central Eurasia
Creators: name: Xun
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 410199
subject: Climate change impacts and adaptation not elsewhere classified

description: Extensive research has examined the impacts of climate and grazing on grassland vegetation, either separately or comparatively, but their interactive effects remain largely elusive. Using generalized linear mixed effect models and structural equation modeling, we assessed how grazing altered grassland vegetation characteristics within climate change contexts in Xinjiang, a region in central Eurasia. Multi-Model Inference and Hierarchical Partitioning were used to examine the interactions between climate and grazing in four types of grasslands, i.e., desert, steppe, meadow, and marsh (across 4442 representative plots) from 1982 to 2014. In the past 30 years, this region's environmental conditions have changed considerably, resulting in distinct variations in vegetation greenness (Normalized Difference Vegetation Index, NDVI) and aboveground biomass (AGB). Climate changes and livestock grazing significantly affected grassland vegetation. The increased precipitation (11.93%) and temperature (3.58%) partially mitigated the negative impact of a 32.93% increase in livestock numbers, and their interactive effects eventually led to a net increase of 5.29% in NDVI but a decrease of 7.29% in AGB. This is mainly because the relative effects of grazing versus climate on these grasslands depended on the environmental context. Specifically, in moist meadows where the stocking rate (SR) increased the most (>48.0%), vegetation changes were most noticeable. Warming and wetting conditions led to a 20.72% increase in NDVI. However, the adverse impact of grazing was more pronounced, reducing vegetation height and AGB (by 24.97%). In contrast, in deserts, productivity rose only slightly (0.39%), primarily due to changes in plant species composition induced by grazing and precipitation. Improved hydrothermal conditions increased vegetation regrowth by at least as much NDVI and AGB as decreased by grazing, consequently mitigating the adverse effects of increased grazing on vegetation growth. Our study further revealed that climate change and livestock grazing could serve as counterforces controlling NDVI and AGB through vegetation composition that varied with grassland type and grazing intensity. The net change in vegetation depended on grassland types with different environmental conditions. Our study suggests the importance of considering the intricate (interactive, direct, and indirect) interactions between climate, grazing, and other biotic and abiotic factors when assessing changes in grassland ecosystems.
title: Die Entwicklung des Konzepts „Realienkunde“ am IMAREAL. Ein Gespräch mit Helmut Hundsbichler
Creators: name: Kühtreiber, Thomas
Publisher: name: Institut für Realienkunde des Mittelalters und der frühen Neuzeit
Year: 2019
Subjects: Realienkunde
Mittelalter
Wissenschaftsgeschichte
Geschichtsforschung
Institut für Realienkunde
material culture
Middle Ages
History of science
Institute of medieval and early modern material culture
History
Helmut Hundsbichler

description: Helmut Hundsbichler war als Historiker und Klassischer Philologe von 1973 bis 2011 am IMAREAL beschäftigt. Im Interview legt er seine Sichtweise zur Entwicklung des Konzepts „Realienkunde“ in den ersten vier Jahrzehnten der Institutsgeschichte im Wechselspiel mit der internationalen kulturgeschichtlichen Forschung dar. Des Weiteren werden von ihm die spezifischen Zugänge der Gründergeneration zur Interdisziplinarität am IMAREAL erörtert. Helmut Hundsbichler worked as a historian and classical philologist at IMAREAL from 1973 to 2011. In this interview he describes how the concept of material culture studies termed “Realienkunde” in German was being developed at the Institute during its first four decades and how this correlated with international cultural historical research. Furthermore, he explains the founding generation's specific approaches to interdisciplinarity and how it was being practised at IMAREAL.
description: MEMO Medieval and Early Modern Material Culture Online; Volume 2019 (5); Seitenzahl: x; ISSN: 2523-2932
Dynamical Effects on the Parallel Momentum Distributions of Neutrons from Halo Breakup
Creators: name: Bonaccorso, A.
name: Brink, D. M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this paper we study the energy spectra and related parallel momentum distributions of the neutrons from the breakup of 11Be. Earlier papers on transfer to the continuum reactions have shown that the breakup amplitude reduces to a simple eikonal approximation in the limit of weakly bound projectiles. The aim is to establish a reliable method to obtain information on the structure of the halo from the experimental results which depend on the reaction mechanism. Theoretical results for the widths of the parallel momentum distributions and for the total breakup cross section are compared to recent experimental data.
description: 14 RevTeX pages, 4 ps figures. Phys.Rev.C, submitted
W$(2,4)$, Linear and Non-local \W-Algebras in Sp(4) Particle Model
Creators: name: Gomis, J.
name: Herrero, J.
name: Kamimura, K.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We comment on relations between the linear W_{2,4}^{linear} algebra and non-linear W(2,4)$ algebra appearing in a Sp(4) particle mechanics model by using Lax equations. The appearance of the non-local V_{2,2} algebra is also studied.
description: 10 pages, latex
Phase-matched four-wave mixing in the extreme ultraviolet region
Creators: name: Tran, Khoa Anh
name: Dinh, Khuong Ba
name: Hannaford, Peter
name: Van Dao, Lap
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report here a detailed study of the four-wave mixing process in the extreme ultraviolet (XUV) region around 30 nm by using two collinear incommensurate frequency laser pulses. The experimental results reveal evidence of the coherent accumulation of the wave-mixing fields and low-order (third-order and fifth-order) nonlinear response of an argon medium. The dependence of the intensities of the mixing fields on the intensity of a weak control field, on the argon pressure and on the interaction length is analyzed to show that the four-wave mixing fields in this spectral range are generated under the phase-matched condition.
description: 17 pages, 8 figures, accepted for Journal of Applied Physics
Radiative Corrections to Chargino Production with Polarized Beams
Creators: name: Diaz, Marco A.
name: King, Steve F.
name: Ross, Douglas A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that radiative corrections to chargino production in electron-positron annihilation with polarized beams can be large especially in the case of right handed electrons. In addition, there is some dependency on the squark masses that allows us to extract information about the squark spectrum from the chargino production.
description: 4 pages, including 4 figures. Talk given at Linear Collider Workshop 2000--LCWS, Fermilab, Chicago, October 24-28, 2000
Oral history interview with Daphne McClean, 2005
Publisher: name: Columbia University
Year: 2021
Subjects: Civil rights movements--History--20th century.--United States
Civil rights demonstrations--Louisiana

description: Daphne McClean describes her early life in Reserve, Louisiana; her experience growing up in the Great Depression; her attendance at an all-Black Catholic high school; and her thoughts on the mission of the civil rights movement. McClean explains how she became active in New Orleans Congress of Racial Equality (CORE). She discusses the sit-ins and pickets in downtown New Orleans and their reception. She talks about her trips to New York and California, and her return to Reserve. McClean describes the organizational structure of New Orleans CORE and the Black community of Reserve. She discusses her family's religious background, her sisters’ experiences in the Black public school system, and the economic landscape of Reserve, which was once dominated by a sugar refinery. McClean ponders the prevalence of cancer in the area and the treatment of mental disabilities. She describes the membership of New Orleans CORE, including Aretha Castle and the Smith family. She cites Sue Smith, the mother of Pat and Ruby Doris, as a source of support and inspiration. She describes the logistics of demonstration planning and shares anecdotes of memorable demonstrations. McClean concludes with recollections of neighborhood race relations, the importance of storytelling, and the issue of interracial marriage
Diffractive X-ray waveguiding reveals orthogonal crystalline stratification in conjugated polymer thin films
Creators: name: Gann, Eliot
name: Caironi, Mario
name: Noh, Yong-Young
name: Kim, Yun-Hi
name: McNeill, Christopher R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The depth dependence of crystalline structure within thin films is critical for many technological applications, but has been impossible to measure directly using common techniques. In this work, by monitoring diffraction peak intensity and location and utilizing the highly angle-dependent waveguiding effects of X-rays near grazing incidence we quantitatively measure the thickness, roughness and orientation of stratified crystalline layers within thin films of a high-performance semiconducting polymer. In particular, this diffractive X-ray waveguiding reveals a self-organized 5-nm-thick crystalline surface layer with crystalline orientation orthogonal to the underlying 65-nm-thick layer. While demonstrated for an organic semiconductor film, this approach is applicable to any thin film material system where stratified crystalline structure and orientation can influence important interfacial processes such as charge injection and field-effect transport.
Visual Dynamics: Stochastic Future Generation via Layered Cross Convolutional Networks
Creators: name: Xue, Tianfan
name: Wu, Jiajun
name: Bouman, Katherine L.
name: Freeman, William T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We study the problem of synthesizing a number of likely future frames from a single input image. In contrast to traditional methods that have tackled this problem in a deterministic or non-parametric way, we propose to model future frames in a probabilistic manner. Our probabilistic model makes it possible for us to sample and synthesize many possible future frames from a single input image. To synthesize realistic movement of objects, we propose a novel network structure, namely a Cross Convolutional Network; this network encodes image and motion information as feature maps and convolutional kernels, respectively. In experiments, our model performs well on synthetic data, such as 2D shapes and animated game sprites, and on real-world video frames. We present analyses of the learned network representations, showing it is implicitly learning a compact encoding of object appearance and motion. We also demonstrate a few of its applications, including visual analogy-making and video extrapolation.
description: Journal preprint of arXiv:1607.02586 (IEEE TPAMI, 2019). The first two authors contributed equally to this work. Project page: http://visualdynamics.csail.mit.edu
Oral history interview with David Agle, 1990
Publisher: name: Columbia University
Year: 2020
Subjects: Hemophilia--History.--United States
Hemophilia--Social aspects
Hemophilia--Political aspects
AIDS (Disease)--History.--United States
Psychiatrists

description: Early involvement in psychiatry of bleeding disorders and work with Dr. Oscar Ratnoff; parental concerns and coping mechanisms regarding children with hemophilia; involvement with National Hemophilia Foundation (NHF) and their Medical and Scientific Advisory Council (MASAC) - first mental health practitioner to serve on that committee; formation of Mental Health Committee of the NHF; first national meeting of this group in 1975; involvement in developing mental health components of federally funding comprehensive care centers; comparison of hemophilia care to care of other chronic diseases; concept of a "hemophilia community" and "communities" surrounding other chronic diseases; Oscar Ratnoff’s caution regarding using pooled lyophilized blood products to treat people with hemophilia; healthy versus unhealthy use of denial among people with hemophilia; "counter-phobia" or risk-taking behaviors in people with hemophilia; similarities and differences in people with hemophilia on home-care versus hospital-based care; the study of family psychiatric therapy for people with hemophilia and their families; acceptance of mental health care as an aspect of comprehensive care and reasons for that acceptance - e.g., leadership personalities and small size of hemophilia community; possible efficacy of hypnosis in treating hemophilia; development of psychiatry as a specialty post-World War II through late 1970s; mental health aspects of the advent of AIDS in hemophilia population; education and risk-reduction efforts regarding HIV and people with hemophilia versus consideration of psychological factors
MOESM16 of p53 modeling as a route to mesothelioma patients stratification and novel therapeutic identification
Creators: name: Tian, Kun
name: Bakker, Emyr
name: Hussain, Michelle
name: Guazzelli, Alice
name: Hasen Alhebshi
name: Meysami, Parisa
name: Constantinos Demonacos
name: Jean-Marc Schwartz
name: Mutti, Luciano
name: Krstic-Demonacos, Marija
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Additional file 16: Table S15. Approved and experimental drugs that target PDGR1 indirectly (DRUGSURV database).
Regulation of Gene Expression by the NR Corepressor RIP140 in Adipocytes
Creators: name: Kiskinis, Evangelos
Publisher: name: Imperial College London
Year: 2008

description: Nuclear receptors (NR) are ligand-induced transcription factors that regulate the expression of genes involved in a number of physiological processes including metabolism. Their ability to regulate transcription is dependent on the recruitment of specific cofactors that remodel chromatin and promote the assembly of the basal transcriptional machinery. Receptor interacting protein 140 (RIP140) is a corepressor for NRs that utilizes four independent repression domains to inhibit gene expression of target genes. While RIP140-null mice develop around 70% less white adipose tissue than wild-type littermates, the process of adipogenesis is unaffected in RIP140-null and RIP140-expressing cells. To elucidate the intrinsic role of RIP140 in adipocytes i used full mouse genome arrays to compare the gene expression profiles of pre-adipocytes and adipocytes with and without RIP140. I demonstrate that the transcriptional corepressor negatively regulates major gene clusters in a number of metabolic pathways including glycolysis, TCA cycle, oxidative phosphorylation, fatty acid oxidation and glycerol metabolism. Additionally, a futile metabolic cycle of triglyceride recycling is activated in RIP140 null adipocytes. In order to determine the molecular mechanism of RIP140 repression i analysed the epigenetic profile of Ucp1, a gene which is typically expressed in brown but not white adipocytes. I utilized RIP140-null and RIP140-expressing adipocytes and found that RIP140 is essential for both DNA and histone methylation to maintain gene repression. RIP140 expression promotes the assembly of DNA and histone methyltransferases on the Ucp1 enhancer and leads to methylation of specific CpG residues and histones as judged by bisulphite genomic sequencing and chromatin immunoprecipitation assays. These results suggest that RIP140 serves as a scaffold for both DNA and histone methyltransferase activities to inhibit gene transcription by two key epigenetic repression systems. RIP140 could potentially act to divert white adipocytes from a brown fat phenotype by repressing genes involved in fatty acid oxidation and mitochondrial respiration and by silencing genes like Ucp1.
New boundary conditions for integrable lattices
Creators: name: Kuznetsov, V. B.
name: Jorgensen, M. F.
name: Christiansen, P. L.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: New boundary conditions for integrable nonlinear lattices of the XXX type, such as the Heisenberg chain and the Toda lattice are presented. These integrable extensions are formulated in terms of a generic XXX Heisenberg magnet interacting with two additional spins at each end of the chain. The construction uses the most general rank 1 ansatz for the 2x2 L-operator satisfying the reflection equation algebra with rational r-matrix. The associated quadratic algebra is shown to be the one of dynamical symmetry for the A1 and BC2 Calogero-Moser problems. Other physical realizations of our quadratic algebra are also considered.
description: 22 pages, latex, no figures
Small-Signal Modelling and Analysis of Doubly-Fed Induction Generators in Wind Power Applications
Creators: name: Mei, Francoise
Publisher: name: Imperial College London
Year: 2008

description: The worldwide demand for more diverse and greener energy supply has had a significant impact on the development of wind energy in the last decades. From 2 GW in 1990, the global installed capacity has now reached about 100 GW and is estimated to grow to 1000 GW by 2025. As wind power penetration increases, it is important to investigate its effect on the power system. Among the various technologies available for wind energy conversion, the doubly-fed induction generator (DFIG) is one of the preferred solutions because it offers the advantages of reduced mechanical stress and optimised power capture thanks to variable speed operation. This work presents the small-signal modelling and analysis of the DFIG for power system stability studies. This thesis starts by reviewing the mathematical models of wind turbines with DFIG convenient for power system studies. Different approaches proposed in the literature for the modelling of the turbine, drive-train, generator, rotor converter and external power system are discussed. It is shown that the flexibility of the drive train should be represented by a two-mass model in the presence of a gearbox. In the analysis part, the steady-state behaviour of the DFIG is examined. Comparison is made with the conventional synchronous generators (SG) and squirrel-cage induction generators to highlight the differences between the machines. The initialisation of the DFIG dynamic variables and other operating quantities is then discussed. Various methods are briefly reviewed and a step-by-step procedure is suggested to avoid the iterative computations in initial condition mentioned in the literature. The dynamical behaviour of the DFIG is studied with eigenvalue analysis. Modal analysis is performed for both open-loop and closed-loop situations. The effect of parameters and operating point variations on small signal stability is observed. For the open-loop DFIG, conditions on machine parameters are obtained to ensure stability of the system. For the closed-loop DFIG, it is shown that the generator electrical transients may be neglected once the converter controls are properly tuned. A tuning procedure is proposed and conditions on proportional gains are obtained for stable electrical dynamics. Finally, small-signal analysis of a multi-machine system with both SG and DFIG is performed. It is shown that there is no common mode to the two types of generators. The result confirms that the DFIG does not introduce negative damping to the system, however it is also shown that the overall effect of the DFIG on the power system stability depends on several structural factors and a general statement as to whether it improves or detriorates the oscillatory stability of a system can not be made.
The Effects of Adult Progenitor Cell Transplantation on Recipient Cardiomyocyte Excitation-Contraction Coupling
Creators: name: Lee, Joon
Publisher: name: Imperial College London
Year: 2008

description: Cell transplantation is a promising strategy for treating heart failure but the mechanisms effecting functional improvements remain unknown. The hypothesis that cell transplantation influences the contractile properties and excitation-contraction (EC) coupling of recipient cardiomyocytes by paracrine mechanisms was tested. Adult rats underwent myocardial infarction and subsequently developed chronic heart failure. They then received intra-myocardial injections of either skeletal myoblasts or bone marrow mononuclear cells which were harvested from transgenic rats constitutively expressing green fluorescent protein. Four weeks after injection, both cell types increased ejection fraction and reduced cardiomyocyte size. Isolated cardiomyocytes emitted low levels of green fluorescence, indicating that they originated from the recipient heart. The cardiomyocytes were then studied using sarcomere length measurements, indo-1 fluorescence and whole-cell patch-clamping techniques. Injection of either bone marrow cells or skeletal myoblasts normalized the impaired contractile performance and the prolonged time-to-peak of the Ca2+ transients that were observed in failing cardiomyocytes. The smaller and slower L-type Ca2+ current observed in heart failure returned to normal values after skeletal myoblast, but not bone marrow mononuclear cell, transplantation. Analysis of Ca2+ sparks in isolated cardiomyocytes using confocal microscopy revealed that SR Ca2+ leak had increased in failing cardiomyocytes, but was normalized by skeletal myoblast transplantation. In order to test the hypothesis that these effects observed in vivo are mediated by paracrine substances secreted from the transplanted cells further experiments were performed. Cardiomyocytes were isolated from failing hearts and cultured for 48 hours. Co-culturing with either skeletal myoblasts or bone marrow mononuclear cells during this period improved cardiomyocyte contraction and Ca2+ handling. This effect was maintained even when the different cell populations were mechanically separated by means of a porous membrane, demonstrating that cell-to-cell contact was not required and that soluble substances mediated the effect. Analysis of the supernates obtained from these co-culture experiments identified four candidate substances as possible mediators, but confirmation of their importance requires further experimental investigation. In addition to the work described above, experiments were performed during the preparation of the whole-cell patch-clamping system. The system was tested by measuring the Na+/Ca2+ exchanger current densities in cardiomyocytes isolated from normal rat hearts. Using this system the acute effects of various -adrenergic agonists was assessed. The results obtained from this separate study are presented in Chapter 6.
Two-Photon Rabi Splitting in a Coupled System of a Nanocavity and Exciton Complexes
Creators: name: Qian, Chenjiang
name: Wu, Shiyao
name: Song, Feilong
name: Peng, Kai
name: Xie, Xin
name: Yang, Jingnan
name: Xiao, Shan
name: Steer, Matthew J.
name: Thayne, Iain G.
name: Tang, Chengchun
name: Zuo, Zhanchun
name: Jin, Kuijuan
name: Gu, Changzhi
name: Xu, Xiulai
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Two-photon Rabi splitting in a cavity-dot system provides a basis for multi-qubit coherent control in quantum photonic network. Here we report on two-photon Rabi splitting in a strongly coupled cavity-dot system. The quantum dot was grown intentionally large in size for large oscillation strength and small biexciton binding energy. Both exciton and biexciton transitions couple to a high quality factor photonic crystal cavity with large coupling strengths over 130 $μ$eV. Furthermore, the small binding energy enables the cavity to simultaneously couple with two exciton states. Thereby two-photon Rabi splitting between biexciton and cavity is achieved, which can be well reproduced by theoretical calculations with quantum master equations.
description: 12 pages, 4 figures