cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Granular Cellulose Nanofibril Hydrogel Scaffolds for 3D Cell Cultivation
Creators: name: Gehlen, David B.
name: Jürgens, Niklas
name: Omidinia-Anarkoli, Abdolrahman
name: Haraszti, Tamás
name: George, Julian
name: Walther, Andreas
name: Ye, Hua
name: De Laporte, Laura
Publisher: name: Weinheim : Wiley-VCH
Year: 2020
Subjects: subject: 3D cell cultures
subject: cellulose nanofibril hydrogels
subject: granular hydrogel scaffolds
subject: tissue engineering
subject: 540

description: The replacement of diseased and damaged organs remains an challenge in modern medicine. However, through the use of tissue engineering techniques, it may soon be possible to (re)generate tissues and organs using artificial scaffolds. For example, hydrogel networks made from hydrophilic precursor solutions can replicate many properties found in the natural extracellular matrix (ECM) but often lack the dynamic nature of the ECM, as many covalently crosslinked hydrogels possess elastic and static networks with nanoscale pores hindering cell migration without being degradable. To overcome this, macroporous colloidal hydrogels can be prepared to facilitate cell infiltration. Here, an easy method is presented to fabricate granular cellulose nanofibril hydrogel (CNF) scaffolds as porous networks for 3D cell cultivation. CNF is an abundant natural and highly biocompatible material that supports cell adhesion. Granular CNF scaffolds are generated by pre-crosslinking CNF using calcium and subsequently pressing the gel through micrometer-sized nylon meshes. The granular solution is mixed with fibroblasts and crosslinked with cell culture medium. The obtained granular CNF scaffold is significantly softer and enables well-distributed fibroblast growth. This cost-effective material combined with this efficient and facile fabrication technique allows for 3D cell cultivation in an upscalable manner. © 2020 The Authors. Published by Wiley-VCH GmbH
Flavor Hierarchy From F-theory
Creators: name: Heckman, Jonathan J.
name: Vafa, Cumrun
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has recently been shown that F-theory based constructions provide a potentially promising avenue for engineering GUT models which descend to the MSSM. In this note we show that in the presence of background fluxes, these models automatically achieve hierarchical Yukawa matrices in the quark and lepton sectors. At leading order, the existence of a U(1) symmetry which is related to phase rotations of the internal holomorphic coordinates at the brane intersection point leads to rank one Yukawa matrices. Subleading corrections to the internal wave functions from variations in the background fluxes generate small violations of this U(1), leading to hierarchical Yukawa structures reminiscent of the Froggatt-Nielsen mechanism. The expansion parameter for this perturbation is in terms of alpha_(GUT)^(1/2). Moreover, we naturally obtain a hierarchical CKM matrix with V_(12) ~ V_(21) ~ epsilon, V_(23) ~ V_(32) ~ epsilon^(2), V_(13) ~ V_(31) ~ epsilon^(3), where epsilon ~ alpha_(GUT)^(1/2), in excellent agreement with observation.
description: v3: 11 pages, Additional clarifications
Topological Subsystem Codes
Creators: name: Bombin, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce a family of 2D topological subsystem quantum error-correcting codes. The gauge group is generated by 2-local Pauli operators, so that 2-local measurements are enough to recover the error syndrome. We study the computational power of code deformation in these codes, and show that boundaries cannot be introduced in the usual way. In addition, we give a general mapping connecting suitable classical statistical mechanical models to optimal error correction in subsystem stabilizer codes that suffer from depolarizing noise.
description: 16 pages, 11 figures, explanations added, typos corrected
Tailoring the Cavity of Hollow Polyelectrolyte Microgels
Creators: name: Wypysek, Sarah K.
name: Scotti, Andrea
name: Alziyadi, Mohammed O.
name: Potemkin, Igor I.
name: Denton, Alan R.
name: Richtering, Walter
Publisher: name: Weinheim : Wiley-VCH
Year: 2020
Subjects: subject: computer simulations
subject: microgels
subject: Poisson–Boltzmann
subject: polyelectrolytes
subject: scattering
subject: 540

description: The authors demonstrate how the size and structure of the cavity of hollow charged microgels may be controlled by varying pH and ionic strength. Hollow charged microgels based on N-isopropylacrylamide with ionizable co-monomers (itaconic acid) combine advanced structure with enhanced responsiveness to external stimuli. Structural advantages accrue from the increased surface area provided by the extra internal surface. Extreme sensitivity to pH and ionic strength due to ionizable moieties in the polymer network differentiates these soft colloidal particles from their uncharged counterparts, which sustain a hollow structure only at cross-link densities sufficiently high that stimuli sensitivity is reduced. Using small-angle neutron and light scattering, increased swelling of the network in the charged state accompanied by an expanded internal cavity is observed. Upon addition of salt, the external fuzziness of the microgel surface diminishes while the internal fuzziness grows. These structural changes are interpreted via Poisson–Boltzmann theory in the cell model. © 2019 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
title: Address List for Regional Airports Divisions and Airports District/Field Offices (1997)
Creators: name: Federal Aviation Administration
Publisher: name: Federal Aviation Administration
publisherIdentifier: https://ror.org/05q0y0j38
publisherIdentifierScheme: ROR
Year: 1997
Subjects: classificationCode: https://trt.trb.org/term/92062
subject: Aviation
classificationCode: https://trt.trb.org/term/92125
subject: Federal government agencies
classificationCode: https://trt.trb.org/term/97453
subject: Directories
classificationCode: https://trt.trb.org/term/97207
subject: Regions

description: AC No: 150/5000-3T;Advisory Circular
description: This document is a 1997 directory of regional and district/field Federal Aviation

Administration (FAA) offices.
The Dutch in Tasmania: An exploration of ethnicity and immigrant adaptation
Creators: name: Julian, Roberta
Publisher: name: University Of Tasmania
Year: 2023

description: Despite the fact that Tasmania's largest non-English speaking ethnic category is that of Dutch immigrants and their descendants, it has been the subject of very little empirical research. This study remedies this omission by providing an ethnographic account of the adaptation of Dutch immigrants and their descendants in southern Tasmania. The concept of 'ethnicity' is also critically examined and its role in the process of immigrant adaptation is analyzed. The emphasis throughout is upon the structural context within which immigrant adaptation takes place by focussing on the relationship between social networks, ethnic organizational development and the process of self-identification. Migrant adaptation is a process in which an immigrant selects strategies. Such strategies are constrained both by the skill level of immigrants and their access to resources and opportunities in the receiving society. The mobilization of ethnicity is thus seen as a situationally specific adaptive strategy which the immigrant chooses from a repertoire of available identity options. Two alternative patterns of adaptation are identified. The first is characterized by the development of an 'ethnic' community with a wide range of organizational development and relatively closed social networks leading to the maintenance of ethnic traits. The second pattern involves the dispersion of migrant individuals within the receiving society, resulting in limited ethnic networks and hence a decline in the salience of ethnicity both in social relationships and as an identity construct. The two types of adaptation are the result of an individual's social location in both the society of origin and the receiving society. Factors considered include the level of modernity characterizing these societies, an individual's social location in the society of origin prior to emigration and upon arrival in the receiving society, mode of migration, skill level, availability of resources and identity options and the structure of opportunities in the receiving society. Using this approach the recent 'ethnic revival' in modern societies can be distinguished as a different phenomenon from the mobilization of ethnidty among first-generation migrants. Variations in the nature of ethnic mobilization are explained through an examination, grounded in actual social experiences, of the structural conditions which lead to the choice of strategies. The study - thus demonstrates the limited explanatory power of ethnicity per se in the process of immigrant adaptation. The concept of 'ethnicity' is a descriptive term which subsumes a variety of factors and processes. In order to develop adequate explanations of ethnic phenomena in modern society it is therefore necessary to develop concepts based on distinct and measurable processes.
Time-Dependent Density Functional Theory for Open Quantum Systems with Unitary Propagation
Creators: name: Yuen-Zhou, Joel
name: Tempel, David G.
name: Rodríguez-Rosario, César
name: Aspuru-Guzik, Alán
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend the Runge-Gross theorem for a very general class of Markovian and non-Markovian open quantum systems under weak assumptions about the nature of the bath and its coupling to the system. We show that for Kohn-Sham (KS) Time-Dependent Density Functional Theory, it is possible to rigorously include the effects of the environment within a bath functional in the KS potential, thus placing the interactions between the particles of the system and the coupling to the environment on the same footing. A Markovian bath functional inspired by the theory of nonlinear Schrodinger equations is suggested, which can be readily implemented in currently existing real-time codes. Finally, calculations on a helium model system are presented.
description: 5 pages
FUNGICIDAL ACTIVITY OF ROSMARINIC ACID AGAINST ASPERGILLUS FUMIGATUS AND ASPERGILLUS BREVIPES ISOLATED FROM RAW COW MILK IN WESTERN SAUDI ARABIA IN SIGHT OF INVITRO AND INSILCO STUDIES
Creators: name: FAYEZ ALTHOBAITI
Publisher: name: Zenodo
Year: 2024
Subjects: Aspergillus Fumigatus, Aspergillus Brevipes, Raw Cow Milk, Rosmarinic Acid

description: Abstract

The potential relationship between the presence of gliotoxinogenic Aspergillus species and the surrounding environment of lactating cows. Aspergillus fumigatus is the main etiologic agent causing invasive aspergillosis. Also, the A. fumigatus complex may be a cause of invasive aspergillosis. In this study, A.fumigatus strains were isolated from lactating cow’s milk in Taif, Saudi Arabia, and identified using morphological criteria via cultivating Aspergillus species inoculations on Czapek agar, and malt extract agar (MEA) plates, followed by examining the activity of the Rosmarinic acid against Aspergillus species using diffusion disk and MIC assays. Also interesting was the molecular docking of Rosmarinic acid against 14-alpha sterol demethylase Cyp51B enzyme which considers a target site for fungal infection. The result has shown that morphologic identification of the strains isolated from lactate cow milk displayed two classes of Aspergillus species: Aspergillus fumigatus which has a colony blue-green in front and converts into colorless in reverse with a diameter is 2-3 cm and a Vesicle diameter 23 μm, the second class was Aspergillus brevipes which has a colony color in front is yellow and convert into brown in reverse with diameter is 2 cm and Vesicle diameter 14 μm. The inhibition zone of A. fumigatus and A. brevipes were 17 and 15 nm respectively after the strains were investigated with RA. The MIC value of RA against Aspergillus fumigatus and Aspergillus brevipes isolated from cow milk was 321 and 326 mg, respectively. The 14-alpha sterol demethylase Cyp51B enzyme was inhibited by RA via the formation of two hydrogen bonds with Ser511 and Arg510 respectively.
Is spin-charge separation observable in a transport experiment?
Creators: name: Ulbricht, Tobias
name: Schmitteckert, Peter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider a one-dimensional chain consisting of an interacting area coupled to non-interacting leads. Within the area, interaction is mediated by a local on-site repulsion. Using real time evolution within the Density Matrix Renormalisation Group (DMRG) scheme, we study the dynamics of wave packets in this two-terminal transport setup. In contrast to previous works, where excitations were created by adding potentials to the Hamiltonian, we explicitly create left moving single particle excitations in the right lead as the starting condition. Our simulations show that such a transport setup allows for a clear detection of spin-charge separation using time-resolved spin-polarised density measurements.
description: 5 pages, 4 figures. accepted by Europhysics Letters
Smart cellulose fibers coated with carbon nanotube networks
Creators: name: Qi, H.
name: Liu, J.
name: Mäder, E.
Publisher: name: Basel : MDPI AG
Year: 2014
Subjects: subject: Carbon nanotubes
subject: Cellulose fiber
subject: Piezoresistivity
subject: Smart fiber
subject: Vapor sensing
subject: 620

description: Smart multi-walled carbon nanotube (MWCNT)-coated cellulose fibers with a unique sensing ability were manufactured by a simple dip coating process. The formation of electrically-conducting MWCNT networks on cellulose mono- and multi-filament fiber surfaces was confirmed by electrical resistance measurements and visualized by scanning electron microscopy. The interaction between MWCNT networks and cellulose fiber was investigated by Raman spectroscopy. The piezoresistivity of these fibers for strain sensing was investigated. The MWCNT-coated cellulose fibers exhibited a unique linear strain-dependent electrical resistance change up to 18% strain, with good reversibility and repeatability. In addition, the sensing behavior of these fibers to volatile molecules (including vapors of methanol, ethanol, acetone, chloroform and tetrahydrofuran) was investigated. The results revealed a rapid response, high sensitivity and good reproducibility for these chemical vapors. Besides, they showed good selectivity to different vapors. It is suggested that the intrinsic physical and chemical features of cellulose fiber, well-formed MWCNT networks and favorable MWCNT-cellulose interaction caused the unique and excellent sensing ability of the MWCNT-coated cellulose fibers, which have the potential to be used as smart materials.
Optimization of multi-stage absorption systems
Creators: name: Lucas, James Peter
Publisher: name: University of British Columbia
Year: 2011

description: Multi-stage adsorption configurations with equality and Inequality constraints are optimized and comparisons are made between their relative effectiveness. For a given number of stages countercurrent flow is always superior, as expected. Although crossflow is generally second best, it becomes inferior to certain alternative networks for certain ranges of the magnitude of the adsorption isotherm exponent. Generally, the order of the effectiveness of various networks is believed to be according to how much the networks resemble countercurrent flow. An algorithm is derived and used to solve the N-stage crossflow network. All other configurations had to be treated as problems in constrained optimization. For this purpose, a theorem of Courant and a method of Carroll for equality and inequality constraints respectively are used to formulate the problem. Three different optimization methods were considered with the deflected gradient method of Fletcher and Powell proving to be the superior for this particular class of optimization problems.
title: Address List for Regional Airports Divisions and Airports District/Field Offices (1996)
Creators: name: Federal Aviation Administration
Publisher: name: Not Available
Year: 1996
Subjects: classificationCode: https://trt.trb.org/term/92062
subject: Aviation
classificationCode: https://trt.trb.org/term/92125
subject: Federal government agencies
classificationCode: https://trt.trb.org/term/97453
subject: Directories
classificationCode: https://trt.trb.org/term/97207
subject: Regions

description: AC No: 150/5000-3S;Advisory Circular
description: This document is a 1996 directory of regional and district/field Federal Aviation

Administration (FAA) offices.In .pdf format; 22p.  The current listing can be

viewed at 
On the irreducible Specht modules for Iwahori--Hecke algebras of type A with $q=-1$
Creators: name: Fayers, Matthew
Publisher: name: arXiv
Year: 2009
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20C08, 05E10

description: Let $p$ be a prime and $\mathbb{F}$ a field of characteristic $p$, and let $\mathcal{H}_n$ denote the Iwahori--Hecke algebra of the symmetric group $\mathfrak{S}_n$ over $\mathbb{F}$ at $q=-1$. We prove that there are only finitely many partitions $λ$ such that both $λ$ and $λ'$ are 2-singular and the Specht module $S^λ$ for $\mathcal{H}_{|\la|}$ is irreducible.
The Greenwash Effect: A Critical Examination of Ecofeminism and Corporate Tokenization in Pakistan
Creators: name: Abeera
Publisher: name: University of Chicago
Year: 2023
Subjects: subject: Ecofeminism
subject: Capitalism
subject: Feminism
subject: Women in Development
subject: Climate Change
subject: Environmental Degradation
subject: Corporate Tokenization

description: This thesis explores the intersection of ecofeminism and corporate tokenization in the context of Pakistan's socio-political and cultural landscape. The study explores how the ecofeminist framework, which recognizes the link between the oppression of women and environmental destruction, can provide solutions to the country's pressing environmental and social issues. Using the Thar coal project in Sindh as a case study and the impact of 2022 monsoon floods, the research analyzes how marginalized groups, particularly women, are integrated into the capitalist framework, leading to their exploitation and compounding existing social inequities. Drawing on the theoretical frameworks of Nancy Fraser's 'Cannibal Capitalism' and Jay Westerveld's concept of corporate 'Greenwashing,' this paper proposes a reassessment of ecofeminism as a means of challenging corporations and state institutions that perpetuate gender oppression and environmental degradation in Pakistan. The study's mixed-methods approach, which includes a case study, discourse analysis, and qualitative data analysis, provides a range of perspectives and enriches the research findings. This thesis aims to inspire action among policymakers, corporations, and civil society to recognize the potential of ecofeminism in providing transformative solutions to some of Pakistan's most pressing gender and environmental issues. Through the reassessment of the ecofeminist ideology, the study underscores the urgent need to work towards a more equitable, just, and sustainable society.
The legislative council of Van Diemen's land 1825-1856: A study of some aspects of the development of a colonial legislature.
Creators: name: Korobacz, V
Publisher: name: University Of Tasmania
Year: 2023

description: During the latter half of the eighteenth century Great Britain came to regard her colonies as a means of supporting her naval and military power, as well as a source of wealth. The emergence ,of this concept of the Empire as an integral part of Britain's defence system demanded strict metropolitan control of dependencies. After the war with France in the middle of the eighteenth century and the acquisition of Canada, India and some of the Caribbean Islands, she began to assert her authority to a greater degree. The consequences of this policy were far-reaching. - The rebellion of the American colonies, an expression of discontent with the assertion of metropolitan authority, reinforced the existing disillusionment with settlement colonies and strengthened Britain 's determination to continue her policy of integrating the empire, a policy which if implemented earlier might have prevented the loss of the Thirteen Colonies.
Coulomb Confinement from the Yang-Mills Vacuum State in 2+1 Dimensions
Creators: name: Greensite, J.
name: Olejnik, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Coulomb-gauge ghost propagator, and the color-Coulomb potential, are computed in an ensemble of configurations derived from our recently proposed Yang-Mills vacuum wavefunctional in 2+1 dimensions. The results are compared to the corresponding values obtained by standard Monte Carlo simulations in three Euclidean dimensions. The agreement is quite striking for the Coulomb-gauge ghost propagator. The color-Coulomb potential rises linearly at large distances, but its determination suffers from rather large statistical fluctuations, due to configurations with very low values of $μ_0$, the lowest eigenvalue of the Coulomb-gauge Faddeev-Popov operator. However, if one imposes cuts on the data, effectively leaving out configurations with very low $μ_0$, the agreement of the potential in both sets of configurations is again satisfactory, although the errorbars grow systematically as the cutoff is eliminated.
description: 8 pages, 5 figures (10 EPS files), RevTeX4.1. V2: original figs. 4 and 5 compressed into a new fig. 5; a new fig. 4; sec. IV.B slightly modified to reflect the changes. Version to appear in Phys. Rev. D. V3: a reference corrected.
Women's Representation and the Question of Temporary Special Measures in Tuvalu
Creators: name: Molotii, Asita
name: Baker, Kerryn
name: Corbett, Jack
Publisher: name: Canberra, ACT : Coral Bell School of Asia Pacific Affairs, College of Asia and the Pacific, The Australian National University
Year: 2014

description: The Pacific region is (in)famous for its low numbers of female members of parliament (MPs) (Baker 2014). In response, policymakers and academics are increasingly asking whether temporary special measures (TSM) could alter this trend, if they are appropriate, and what form they should take. Since ratifying the international Convention on the Elimination of all Forms of Discrimination against Women in 1999, Tuvalu is one of a growing number of countries considering TSM as a way to boost the representation of women in parliament. In this In Brief we canvas some of the options being contemplated and consider how a process of institutional reform might take place.
Nanosecond pulse radiolysis studies.
Creators: name: Kenney, Geraldine Anne
Publisher: name: University of British Columbia
Year: 2011

description: Nanosecond pulse radiolysis studies on the behaviour of ē aq at high concentrations as a preliminary to the investigation of ē aq* have shown that contrary to normal classical homogeneous kinetics the electron decays initially in a first order manner, moving into second order decay within about 100 nanoseconds after the electron pulse. Further investigations have shown that for a comparable time after the pulse the distribution of the absorbing species is not homogeneous thus rendering any classical kinetic interpretation invalid. Qualitative calculations on the duration of the inhomogeneity were performed and the experimental results are in reasonable agreement with their predictions, The first order decay that is observed is considered to be more than a random sequence of reactions and two possible models are tentatively proposed to account for these events. Comparisons are made between this work and others in which inhomogeneity undoubtedly accounts for the unusually fast bimolecular rate constants for the primary decay ē aq + ē aq → H₂ + 2OH ̄ aq The deuterated electron was investigated with similar conclusions. The rate constants evaluated from this work were: [ Formulas omitted ] and the bimolecular rate constant, determined in a homogeneous environment, is in good agreement with the accepted literature values for the probable reactions involving ē aq in our system.
title: Entwicklung von Pflegeprozesskompetenz - eine Analyse der Perspektive von Pflegelehrenden
Creators: name: Assel-Burmeister, Regina
Publisher: name: Katholische Hochschule Nordrhein-Westfalen, Köln
Year: 2023
Subjects: subject: 300 Sozialwissenschaften

description: Hintergrund: Seit dem Pflegeberufegesetz von 2019 sind die Organisation, Gestaltung und Steuerung des Pflegeprozesses eine vorbehaltene Tätigkeit (PflBG § 4, Absatz 1, Satz 3). Für die pflegeprozessbezogenen Kompetenzen sind in der Pflegeausbildungs- und Prüfungsverordnung 1000 Stunden Unterricht vorgesehen, was fast der Hälfte der theoretischen Ausbildung entspricht. Verglichen mit den vorherigen Verordnungen stellt dies mengenmäßig und inhaltlich eine völlig neue Rahmenbedingung dar. 
Zielsetzung: Diese Arbeit geht der Frage nach, wie Pflegelehrende diese Herausforderung angehen. Es sollen Erkenntnisse gewonnen werden, wo sie diesbezüglich stehen. Denn es wird vermutet, dass Schulen sich bereits auf den Weg gemacht haben, dass aber auch Ideen gesucht werden, wie die Entwicklung von Pflegeprozesskompetenz gestaltet werden kann.
Methoden: Im theoretischen Rahmen werden zentrale Begriffe, die mit dem Thema der Entwicklung von Pflegeprozesskompetenz in Verbindung stehen, dargestellt. Darauf baut die explorierende Forschungsfrage auf, die qualitativ bearbeitet wird. Die Datengewinnung erfolgt in zwei Gruppendiskussionen, die mit der inhaltlich strukturierenden Inhaltsanalyse ausgewertet werden. 
Ergebnisse: Lehrende an Pflegeschulen orientieren sich bei der Entwicklung von Pflegeprozesskompetenz an der Wissens- und Anwendungsebene. Dabei zeigt sich, dass die Orientierung am Pflegeprozess und die Kompetenzentwicklung noch kein durchgängiges Prinzip in der Pflegeausbildung darstellen. Die wahrgenommene Praxisferne bei den Auszubildenden lenkt den Blick auf die Arbeitsprozesse, die mit dem Pflegeprozess in Verbindung stehen, so aber nicht erkannt werden. 
Schlussfolgerungen: Es braucht umfassende Konzepte, in die alle an der Entwicklung von Pflegeprozesskompetenz Beteiligten involviert sind. Schließlich geht es darum, die Qualität der pflegerischen Versorgung zu sichern, indem Absolvent*innen in der Lage sind, die vorbehaltende Tätigkeit auszuführen.
Additional file 1: of Seasonal pattern of Echinococcus re-infection in owned dogs in Tibetan communities of Sichuan, China and its implications for control
Creators: name: Wang, Qian
name: Yu, Wen-Jie
name: Zhong, Bo
name: Shang, Jing-Ye
name: Huang, Liang
name: Mastin, Alexander
name: Renqingpengcuo
name: Huang, Yan
name: Zhang, Guang-Jia
name: He, Wei
name: Giraudoux, Patrick
name: Wu, Wei-Ping
name: Craig, Philip
Publisher: name: figshare
Year: 2019
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Plant Biology
subject: FOS: Biological sciences

description: Multilingual abstracts in the six official working languages of the United Nations. (PDF 595 kb)
Primitive shoshonites from Fiji: Mineralogy, melt inclusions and geochemistry
Creators: name: Leslie, RA
Publisher: name: University Of Tasmania
Year: 2023

description: Fundamental issues regarding the origin and evolution of primitive shoshonitic magmas are addressed using mineralogical, melt inclusion and geochemical data from Fijian shoshonites. Melt inclusions in olivine phenocrysts from primitive Fijian shoshonites are used to critically assess the issues relating to melt sampling by high Fo olivine phenocrysts and address to what degree trapped melt compositions reflect the larger volume magmatic system as a whole. Shoshonitic magmas erupted in Fiji during the Pliocene (5-3Ma) from 11 main volcanic centres along three broad ENE and NNW trending lineaments. The most mafic shoshonitic lavas (absarokites) range from 8.4-15.2wt% MgO and are highly porphyritic, containing phenocrysts of olivine (to F093.2) and clinopyroxene (to Mg# 93.3). The vast majority of melt inclusions in high-Fo-olivine phenocrysts from Fijian shoshonites have anomalous major element composition, mainly characterised by high CaO contents and high-CaO/Al203. Anomalous melt inclusion compositions are interpreted to reflect localised, grain-scale dissolution-reaction-mixing processes within the magmatic plumbing system where hot, primitive magma comes in contact with wall-rocks and/or pre-existing semi-solidified mush zones. Injection of hot primitive melt causes partial dissolution of the mush-zone phases, which are not in equilibrium with the primitive melt and mixing of the reaction products with the primitive magma. Rapid cooling at the margins of the magma body induces fast crystallisation and efficient trapping of numerous and large melt inclusions, with anomalous major element composition. Populations of melt inclusions in high-Fo olivine phenocrysts from Fijian shoshonites, and arguably many other subduction related suites, are naturally biased toward anomalous compositions.
Probing the Epoch of Reionization with Milky Way Satellites
Creators: name: Muñoz, Joseph A.
name: Madau, Piero
name: Loeb, Abraham
name: Diemand, Jürg
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: While the connection between high-redshift star formation and the local universe has recently been used to understand the observed population of faint dwarf galaxies in the Milky Way (MW) halo, we explore how well these nearby objects can probe the epoch of first light. We construct a detailed, physically motivated model for the MW satellites based on the state-of-the-art Via Lactea II dark-matter simulations. Our model incorporates molecular hydrogen (H_2) cooling in low-mass systems and inhomogeneous photo-heating feedback during the internal reionization of our own galaxy. We find that the existence of MW satellites fainter than M_V ~ -5 is strong evidence for H_2 cooling in low-mass halos, while satellites with -5 > M_V > -9 were affected by hydrogen cooling and photoheating feedback. The age of stars in very low-luminosity systems and the minimum luminosity of these satellites are key predictions of our model. Most of the stars populating the brightest MW satellites could have formed after the epoch of reionization. Our models also predict a significantly larger dispersion in M_300 values than observed and a number of luminous satellites with M_300 as low as 10^6 solar masses.
description: 11 pages, 6 figures. Accepted by MNRAS. Updated to accepted version
The Moderating Effect of Contextual Factors on the Impact of Competitive Behavior on Community Pharmacists’ Performance in Nigeria
Creators: name: Oamen, Theophilus Ehidiamen
Publisher: name: International Journal of Economic Behavior  (IJEB)
Year: 2023
Subjects: Community pharmacist
Competitive behavior
Model of interpersonal behavior
Performance
Stuctural Equation Modeling (SEM)
Management
Contextual Factors

description: Extant literature suggests that competitive behavior (CB) tends to positively enhance job performance (JP). There is scarce empirical evidence to justify this assertion under socio-behavioral contexts influencing the work environment among community pharmacists. Intuitively, community pharmacies are knowledge-based organizations, and the right environment needs to be nurtured to support collective performance among pharmacists. To fill this gap, the model of interpersonal behavior was applied as a theoretical framework to evaluate the moderating effects of contextual factors-professionalism (PFN), group associations (GA), collaborative behavior (CTB), and professional training (PT) on the relationship between CB and JP. A quantitative cross-sectional study with a self-reported questionnaire was administered to 654 randomly selected community pharmacists in Southwest Nigeria. To align theory with model specification, formative or emergent constructs were specified as moderator variables- P_PF [PFN & PT] and G_CB [GA & CCB] using structural equation modeling in WarpPLS. The structural model had acceptable fit and validity. CB positively and significantly influenced JP. Findings showed that high G_CB significantly weakened the relationship between CB and JP compared to the insignificant effect of P_PT. Invariably, group-linked collaboration weakens the effect of CB on JP. The study asserts that professional groups have a role to play in appropriating competitiveness for enhanced performance. The study recommends educational training for pharmacists at the undergraduate and graduate levels and a shift from an individualistic to a group paradigm in practice
description: International Journal of Economic Behavior (IJEB), Vol. 13 No. 1 (2023): International Journal of Economic Behavior
Piezoelectric-driven uniaxial pressure cell for muon spin relaxation and neutron scattering experiments
Creators: name: Ghosh, Shreenanda
name: Brückner, Felix
name: Nikitin, Artem
name: Grinenko, Vadim
name: Elender, Matthias
name: Mackenzie, Andrew P.
name: Luetkens, Hubertus
name: Klauss, Hans-Henning
name: Hicks, Clifford W.
Publisher: name: [S.l.] : American Institute of Physics
Year: 2020
Subjects: subject: Charged particles
subject: Neutron scattering
subject: Piezoelectricity
subject: 530
subject: 620

description: We present a piezoelectric-driven uniaxial pressure cell that is optimized for muon spin relaxation and neutron scattering experiments and that is operable over a wide temperature range including cryogenic temperatures. To accommodate the large samples required for these measurement techniques, the cell is designed to generate forces up to ∼1000 N. To minimize the background signal, the space around the sample is kept as open as possible. We demonstrate here that by mounting plate-like samples with epoxy, a uniaxial stress exceeding 1 GPa can be achieved in an active volume of at least 5 mm3. We show that for practical operation, it is important to monitor both the force and displacement applied to the sample. In addition, because time is critical during facility experiments, samples are mounted in detachable holders that can be rapidly exchanged. The piezoelectric actuators are likewise contained in an exchangeable cartridge. © 2020 Author(s).
Family Non-universal $U(1)^\prime$ Gauge Symmetries and $b\to s$ Transitions
Creators: name: Barger, Vernon
name: Everett, Lisa
name: Jiang, Jing
name: Langacker, Paul
name: Liu, Tao
name: Wagner, Carlos E. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a correlated analysis for the $ΔB =1, 2$ processes which occur via $b\to s$ transitions within models with a family non-universal $U(1)^\prime$. We take a model-independent approach, and only require family universal charges for the first and second generations and small fermion mixing angles. The results of our analysis show that within this class of models, the anomalies in $B_s - \bar B_s$ mixing and the time-dependent CP asymmetries of the penguin-dominated $B_d \to (π, ϕ, η', ρ, ω, f_0)K_S$ decays can be accommodated.
description: 4 pages, 4 figures, FIG. 4 updated, references added
title: An online approach for DNA sequencing error correction via disk based index
Creators: name: Gu, Y
name: Zhu, Q
name: Pramanik, S
Publisher: name: University of Michigan
Year: 2018

description: DNA sequencing has been widely used in many biological studies such as gene expression analysis and biomedical diagnostics. To solve the problem of sequencing errors produced by a sequencer, researchers perform error correction as a first step in sequence analysis. To overcome the scalability problem of existing memory based error correction methods, a disk based sequencing error correction method, called the DiskBQcor, was recently proposed. It utilizes a disk based index tree to store k-mers from sequencing reads. It then analyzes the results of special box queries run on the index tree to efficiently correct sequencing errors. As an offline approach, the DiskBQcor corrects errors after all the k-mers for a given genome dataset are inserted into the index tree. In this paper, we present an online approach, called the DiskBQcor ∗ , for sequencing error correction to better utilize computing resources. It extends the DiskBQcor by introducing an online analysis process during which sequencing errors are identified and corrected in an online fashion. The relevant correction algorithms, statistical measures, and error identifying strategies are discussed. Our experiments demonstrate that the proposed online method is quite promising in error correction for sequencing genome data on disk.
title: Supporting database access in the Hermes programming language
Creators: name: Larson, Per-Ake
name: Zhu, Qiang
name: Pellow, Frank
Publisher: name: University of Michigan
Year: 2024

description: The work reported in this paper is part of a project aimed at designing and prototyping an application development environment that allows easy development of platform-independent distributed applications. The main goals of the database subproject are to investigate methods for (1) providing (SQL) database access and (2) supporting transaction management within a distributed programming environment based on the paradigm of communicating sequential processes. This paper looks at how SQL database access can be provided in Hermes, a new language for distributed programming based on this paradigm. The paper compares the characteristics of Hermes and SQL tables, discusses potential ways of supporting database access in Hermes, and then defines an embedding of SQL in Hermes. Some implementation aspects are also discussed.
Kompensationsleistungen von Kindern und Jugendlichen mit einer Autismus-Spektrum-Störung. Motivation, Strategien und Auswirkungen sowie Empfehlungen für die Schule
Creators: name: Stalder, Kathrin
name: Wydler Tannò, Karin
Publisher: name: Zenodo
Year: 2022
Subjects: Sonderpädagogik
Masterarbeit
Autismus-Spektrum-Störung

description: Menschen mit einer Autismus-Spektrum-Störung erbringen Kompensationsleistungen, um Besonderheiten oder Schwierigkeiten auszugleichen. In der vorliegenden Arbeit wird untersucht, was Lehrpersonen und Heilpädagog*innen in Bezug auf Kompensationsleistungen beachten sollen. Dazu werden schulische Erfahrungen von acht Betroffenen mittels Leitfadeninterviews retrospektiv erhoben. Anhand einer qualitativen Forschungsmethode werden die Interviewtranskriptionen analysiert und interpretiert. Die Ergebnisse der Untersuchung zeigen Motivation, Strategien und Auswirkungen von Kompensationsleistungen und weisen auf unterstützende Faktoren hin. Basierend auf diesen Erkenntnissen und dem aktuellen Forschungsstand werden Empfehlungen gegeben für Lehrpersonen und Heilpädagog*innen zum Erkennen und Begleiten von Kindern und Jugendlichen, die Kompensationsleistungen erbringen.
Bifinite Chu Spaces
Creators: name: Droste, Manfred
name: Zhang, Guo-Qiang
Publisher: name: arXiv
Year: 2009
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: F.3.2

description: This paper studies colimits of sequences of finite Chu spaces and their ramifications. Besides generic Chu spaces, we consider extensional and biextensional variants. In the corresponding categories we first characterize the monics and then the existence (or the lack thereof) of the desired colimits. In each case, we provide a characterization of the finite objects in terms of monomorphisms/injections. Bifinite Chu spaces are then expressed with respect to the monics of generic Chu spaces, and universal, homogeneous Chu spaces are shown to exist in this category. Unanticipated results driving this development include the fact that while for generic Chu spaces monics consist of an injective first and a surjective second component, in the extensional and biextensional cases the surjectivity requirement can be dropped. Furthermore, the desired colimits are only guaranteed to exist in the extensional case. Finally, not all finite Chu spaces (considered set-theoretically) are finite objects in their categories. This study opens up opportunities for further investigations into recursively defined Chu spaces, as well as constructive models of linear logic.
An Efficient Algorithm for Partial Order Production
Creators: name: Cardinal, Jean
name: Fiorini, Samuel
name: Joret, Gwenaël
name: Jungers, Raphaël M.
name: Munro, J. Ian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We consider the problem of partial order production: arrange the elements of an unknown totally ordered set T into a target partially ordered set S, by comparing a minimum number of pairs in T. Special cases include sorting by comparisons, selection, multiple selection, and heap construction. We give an algorithm performing ITLB + o(ITLB) + O(n) comparisons in the worst case. Here, n denotes the size of the ground sets, and ITLB denotes a natural information-theoretic lower bound on the number of comparisons needed to produce the target partial order. Our approach is to replace the target partial order by a weak order (that is, a partial order with a layered structure) extending it, without increasing the information theoretic lower bound too much. We then solve the problem by applying an efficient multiple selection algorithm. The overall complexity of our algorithm is polynomial. This answers a question of Yao (SIAM J. Comput. 18, 1989). We base our analysis on the entropy of the target partial order, a quantity that can be efficiently computed and provides a good estimate of the information-theoretic lower bound.
description: Referees' comments incorporated
Energy extraction from the Reissner-Nordström de Sitter black hole
Creators: name: Baez, A.
name: Breton, Nora
name: Cabrera-Munguia, I.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The energy extraction from an electrostatic black hole by the decay or splitting of electrically charged particles is analyzed. We determine the energetic conditions that make the extraction process viable and present a general expression for the efficiency in terms of the parameters of the electrostatic black hole and the decaying particles. We also examine the conditions that optimize the efficiency of the extraction process. We analyze two particular cases, the first one is the extraction process from a Reissner Nordström black hole, for charged test particles with nonvanishing angular momentum; the second one and more interesting corresponds to the energy extraction from a Reissner Nordström de Sitter black hole. For the latter there are two regions where the energy extraction is possible, the generalized ergosphere and a cosmological ergosphere induced by the cosmological horizon. Under certain conditions the two ergospheres get connected and cover the whole region between the event horizon and the cosmological horizon, and therefore the energy extraction is possible at any point in the vicinity of the black hole. Moreover, the efficiency of the energy extraction can be the same for different break up points and also there is the possibility of a different efficiency for the same break up point. The conditions that maximize the efficiency are determined as well.
description: 17 pages, 17 figures
Relaxation of Nuclear Magnetic Moments and Site-Selective NMR in d-Wave Superconductors
Creators: name: Throckmorton, Robert E.
name: Vafek, Oskar
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A new mechanism for relaxing the nuclear magnetic moments, in which a pair of spin-polarized BCS quasiparticles is emitted or absorbed, and which dominates at low temperature, is identified in type-II d-wave superconductors in an external magnetic field above Hc1. The results of the theory are compared with the NMR experiments on YBCO in high magnetic fields and found to agree without invoking antiferromagnetic order in the vortex core.
description: 10 pages, 4 figures; significantly expanded, to be published in Phys. Rev. B
Printability study of metal ion crosslinked PEG-catechol based inks
Creators: name: Włodarczyk-Biegun, Malgorzata K.
name: Paez, Julieta I.
name: Villiou, Maria
name: Feng, Jun
name: Del Campo, Aranzazu
Publisher: name: Cold Spring Harbor : Cold Spring Harbor Laboratory
Year: 2019
Subjects: subject: 3D printing
subject: dynamic crosslinking
subject: reversible network
subject: PEG-catechol
subject: metal-ligand coordination
subject: 570

description: Inspired by reversible networks present in nature, we have explored the printability of catechol functionalized polyethylene glycol (PEG) based inks with metal-coordination crosslinking. Material formulations containing Al3+, Fe3+ or V3+ as crosslinking ions were tested. The printability and shape fidelity were dependent on the ink composition (metal ion type, pH, PEG molecular weight) and printing parameters (extrusion pressure and printing speed). The relaxation time, recovery rate and viscosity of the inks were analyzed in rheology studies and correlated with thermodynamic and ligand exchange kinetic constants of the dynamic bonds and the printing performance (i.e. shape fidelity of the printed structures). The relevance of the relaxation time and ligand exchange kinetics for printability was demonstrated. Cells seeded on the crosslinked materials were viable, indicating the potential of the formulations to be used as inks for cell encapsulation. The proposed dynamic ink design offers significant flexibility for 3D (bio)printing, and enables straightforward adjustment of the printable formulation to meet application-specific needs.
Ab initio calculations of 14N and 15N hyperfine structures
Creators: name: Jönsson, P
name: Carette, T
name: Nemouchi, M
name: Godefroid, M
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Hyperfine structure parameters are calculated for the 2p2(3P)3s 4P_J, 2p2(3P)3p 4Po_J and 2p2(3P)3p 4Do_J levels, using the ab initio multiconfiguration Hartree-Fock method. The theoretical hyperfine coupling constants are in complete disagreement with the experimental values of Jennerich et al. (EPJD 40(2006), 81) deduced from the analysis of the near-infrared Doppler-free saturated absorption spectra.
description: 9 pages, 0 figure - Resubmitted to J. Phys. B, after revision according to referee's suggestions.