cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How Sublimation Delays the Onset of Dusty Debris Disk Formation Around White Dwarf Stars
Creators: name: Steckloff, Jordan K.
name: Debes, John
name: Steele, Amy
name: Johnson, Brandon
name: Adams, Elisabeth R.
name: Jacobson, Seth A.
name: Springmann, Alessondra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Although numerous white dwarf stars host dusty debris disks, the temperature distribution of these stars differs significantly from the white dwarf population as a whole. Dusty debris disks exist exclusively around white dwarfs cooler than 27,000 K. This is all the more enigmatic given that the formation processes of dusty debris disks should favor younger, hotter white dwarfs, which likely host more dynamically unstable planetary systems. Here we apply a sophisticated material sublimation model to white dwarf systems to show that these statistics are actually a natural result of the interplay of thermal and tidal forces, and show how they define the circumstellar regions where dusty debris disks can form. We demonstrate that these processes tend to prevent stability against both sublimative destruction and reaccretion into planetesimals for rocky materials until white dwarfs cool to below ~25,000-32,000 K, in agreement with the observed limit of ~27,000 K. For pure water ice, this critical temperature is less than 2,700 K (requiring a cooling age older the universe); this precludes pure water ice-rich debris disks forming through the accepted two-step mechanism. The critical temperature is size-dependent; more massive white dwarfs could potentially host dusty debris disks at warmer temperatures. Our model suggests that the location of the disks within the PG 0010+280, GD 56, GD 362, and PG 1541+651 systems are consistent with a forsterite-dominated olivine composition. We also find that very cool white dwarfs may simultaneously host multiple, independently formed dusty debris disks, consistent with observations of the LSPM J0207+3331 system.
description: Astrophysical Journal Letters. Accepted for Publication
NOTE CRITICHE SULLA FLORA D'ITALIA. VIII
Creators: name: PIGNATTI, S.
Publisher: name: Annali di Botanica
Year: 2019

description: Some corrections and validations concerning the nomenclature of species treated in previous contributions and belonging to following genera: Amelanchier, Genista, Trifolium, Onobrychis, Chaerophyllum, Heracleum, Artemisia.
description: Annali di Botanica, V. 53 (1995): Proceedings of the 4th International Workshop "EUROPEAN VEGETATION SURVEY"
Lesson 2: Religious Resistance of Mexico’s Indigenous Peoples
Creators: name: Cook, Scott
name: Kirkman, Kurt
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Religious Conversion
Indigenous Beliefs
Tribute
Missionaries
Aztec Empire
Hegemony
Resistance
Indigenous People
Colonialism

description: Through a primary source document-based inquiry, students will examine the beliefs and rituals of some Indigenous groups in Mexico at the time of the Spanish invasion and their resistance to Christianization efforts.
IMPLEMENTATION OF WIRELESS CHARGER FOR MOBILE PHONE BASED ON SOLAR ENERGY
Creators: name: Talit Jumphoo
name: Peerapong Uthansakul
name: Hoi-Shun Lui
Publisher: name: Suaranaree University of Technology
Year: 2014
Subjects: Wireless charger, solar energy, transformer, magnetic flux

description: 4, 21, Suranaree Journal of Science and Technology
DISTRIBUZIONE DI CALLUNA VULGARIS (L.) HULL IN UMBRIA
Creators: name: CATORCI, A.
name: ORSOMANDO, E.
name: SILVI, B.
Publisher: name: Annali di Botanica
Year: 2019

description: The distribution of Calluna vulgaris (L.) Hull in Umbria is presented: it is seen in 85 stands, 17 of which are new. The species is widespread, especially in the region’s western section both in flat areas with sandy and iron-rich substrates and in hilly relevés with arenaceous substrates in large banks. In addition, a description is provided of the ecological characteristics of the umbrian environments where the species thrives, as well as the phytosociological communities in which it lives. This research provides an improved delineation of the southern limit of the Italian pattern of this species.
description: Annali di Botanica, V. 54 (1996)
A Null Test of the Cosmological Constant
Creators: name: Chiba, Takeshi
name: Nakamura, Takashi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We provide a consistency relation between cosmological observables in general relativity with the cosmological constant. Breaking of this relation at any redshift would imply the breakdown of the hypothesis of the cosmological constant as an explanation of the current acceleration of the universe.
description: 5 pages, 1 figure, references added, to be published in Prog.Theor.Phys
ANTIOXIDANT CAPACITIES, PHENOLIC, ANTHOCYANIN AND PROANTHOCYANIDIN CONTENTS OF PIGMENTED RICE EXTRACTS OBTAINED BY MICROWAVE-ASSISTED METHOD
Creators: name: Nisakorn Seawan
name: Wannisa Vichit
name: Anongnuch Thakam
name: Natthawut Thitipramote
name: Phanuphong Chaiwut
name: Punyawatt Pintathong
name: Nont Thitilertdech
Publisher: name: Suaranaree University of Technology
Year: 2014
Subjects: Antioxidation activity, extraction, Homnin rice, Munpu rice

description: 4, 21, Suranaree Journal of Science and Technology
title: Incubation Of Halibut Yolk Sac Larvae Improved By Addition Of Freshwater And Oxygen
Creators: name: Harboe, T.
name: Skar, S. A.
name: Naas, K. E.
name: Holm, J. Chr.
Publisher: name: ASC 1998 - L
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.Halibut fry has been produced regularly by scientific and commercial institutions since late 80-ties. The yearly number of halibut fry produced have, however, not fulfilled the optimistic expectations. This could partly be explained by lack of appropriate yolk sac rearing methods. Halibut larvae has, compared to other marine fish species, a long-lasting yolk sac period. Newly hatched larvae are poor developed and are very sensitive to handling. Two main methods have been used for halibut yolksac rearing; small stagnant and large flow-through . incubators. The flow-through incubator has recently been modified, resulting in higher survival rates and simpler operating procedures. The modifications include a flow-through salinity gradient and thereby exclusion of the traditional mechanical outlet sieve. Oxygen is added at the bottom of the incubators to promote an ideal free distribution of the larvae in the water column and to avoid low oxygen tensions.
title: A New Cleaning System For Rearing Tanks In Larval Fish Culture
Creators: name: van der Meeren, Terje
name: Harboe, Torstein
name: Holm, Jens Christian
name: Solbakken, Roald
Publisher: name: ASC 1998 - L
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.An automatic system for cleaning the bottom in larval rearing tanks has been developed and tested in a preliminary trial with Atlantic halibut. The system can be applied for a wide range of species and feeding regimes. A cleaning system is essential for keeping good hygienic conditions, particularly when formulated food is used during the larval stages. The present cleaning system consists of a draining arm fitted to a centrally placed rotating connection through the tank bottom. This rotating connection is powered by. an electric motor with a gear mounted on the underside of the tank. The draining arm is a tube with downward holes at regular intervals, and it is covered with a shield resting on a squeegee. Water outlet of the tank is through the rum, which enables particulate organic material to be collected, concentrated under the draining holes, and flushed out at regular intervals either manually or automatically. Hence, labour and disturbance due to tending are substantially reduced, and accumulation of organic material as substrate for bacterial growth can be prevented. Description and function of the system are discussed in relation to a preliminary rearing trial with Atlantic halibut larvae fed Artemia for 10 days. In this experiment, mortality and ammonia levels in the automatically cleaned tank were substantially lower than with the traditional siphon tending, while larval growth rate in the automatic system was more than twice of that observed with traditional cleaning.
FLORA DI CAPRI
Creators: name: RICCIARDI, M.
Publisher: name: Annali di Botanica
Year: 2019

description: A floristic survey of the island of Capri, Southern Italy, was carried out through field, on herbaria studies and literature studies. The flora was found to comprise 682 taxa, including 70 new records for Capri. 258 taxa that had been recorded previously were not rediscovered. This loss of species from the flora probably reflects the extensive disturbance by humans since ancient times. Analyses of the floristic data in terms of life-form and phytochorological spectra show that the flora of Capri is dominated by Mediterranean species (57%). A large number of Italian endemics (4%) has been recorded, some of which occur only on Capri and in very restricted areas in the Bay of Naples or in a few widely separated localities in Southern Italy. In comparison to some other coastal areas of the Bay of Naples a lower number of eurasiatic and eastern species have been found. This may reflect the conditions of insularity, the low altitude and the decrease in afforested vegetation of the region. The possible contribution of these factors to the origin and to the evolution of the flora of Capri is discussed and the impact of recent human disturbance considered. Evidence that human exploitation of local natural resources has been excessive is shown by the presence of a high number of synanthropic species (28%).
description: Annali di Botanica, V. 54 (1996)
การพัฒนาระบบให้บริการผ่านเครือข่ายอินเตอร์เน็ต สำนักคอมพิวเตอร์ มหาวิทยาลัยราชภัฏนครราชสีมา
Creators: name: สุวรรณา บุเหลา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การพัฒนาระบบให้บริการ, อินเตอร์เน็ต

description: 1, 5, วารสารสาระคาม
An updated survey of globular clusters in M31. II Newly discovered bright and remote clusters
Creators: name: Galleti, S.
name: Bellazzini, M.
name: Federici, L.
name: Buzzoni, A.
name: Pecci, F. Fusi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first results of a large spectroscopic survey of candidate globular clusters located in the extreme outskirts of the nearby M31 galaxy. We obtained low resolution spectra of 48 targets selected from the XSC of 2MASS, as in Galleti et al. (2005). The observed candidates have been robustly classified according to their radial velocity and by verifying their extended/point-source nature from ground-based optical images. Among the 48 observed candidates clusters we found 5 genuine remote globular clusters. One of them has been already identified independently by Mackey et al. (2007), their GC1; the other four are completely new discoveries: B516, B517, B518, B519. The newly discovered clusters lie at projected distance 40 kpc 40 kpc. At odds with the Milky Way, M31 appears to have a significant population of very bright globular clusters in its extreme outskirts.
description: 16 pages including 6 pages published only in the electronic edition of the Journal. Accepted for publication in A&A
Riemann-Hilbert problem on an elliptic surface and a uniformly stressed inclusion embedded into a half-plane subjected to antiplane strain
Creators: name: Antipov, Y. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 30E25, 30F99

description: An inverse problem of elasticity of $n$ elastic inclusions embedded into an elastic half-plane is analyzed. The boundary of the half-plane is free of traction. The half-plane and the inclusions are subjected to antiplane shear, and the conditions of ideal contact hold in the interfaces between the inclusions and the half-plane. The shapes of the inclusions are not prescribed and have to be determined by enforcing uniform stresses inside the inclusions. The method of conformal mappings from a slit domain onto the $(n+1)$-connected physical domain is worked out. It is shown that to recover the map and therefore the inclusions shapes, one needs to solve a vector Riemann-Hilbert problem on a genus-$n$ hyperelliptic surface. In a particular case of loading of a single inclusion in a half-plane, the problem is equivalent to two scalar Riemann-Hilbert problems on two slits on an elliptic surface. In addition to three parameters of the model the conformal map possesses a free geometric parameter. Results of numerical tests which show the impact of these parameters on the inclusion shape are presented.
description: 20 pages, 5 figures
Higher-Energy Standard Model from the Gauge Group Contraction
Creators: name: Gromov, N. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The evolution of properties and interactions of elementary particles is described, beginning with the Planck scale of $10^{19}$ GeV. The description is based on the hypothesis that high-temperature (high-energy) limit of the Standard Model is generated by the gauge group contraction. In the infinite-temperature limit, properties of particles fundamentally change: all particles lose their masses, only massless neutral $Z$ bosons and $u$ quarks together with neutrinos and photons survive. Weak interactions become long-range ones and are generated by neutral currents. Quarks have only one color degree of freedom.
description: 8 pages, 1 figure
ความคาดหวังของผู้รับบริการต่อการให้บริการของสำนักศึกษาทั่วไป  มหาวิทยาลัยมหาสารคาม
Creators: name: ศศิธร นุชิต
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ความคาดหวัง, ความพึงพอใจ

description: 1, 5, วารสารสาระคาม
LET-806: Section 106 Letter Continuing Consultation with the SHPO for the D1 Power Line Project
Creators: name: Zalud, Arianna
Year: 2023

description: This document is a letter from the Department of the Air Force (DAF), operating on Vandenberg Space Force Base (VSFB), continuing Section 106 consultation with the State Historic Preservation Officer (SHPO) for the D1 Circuit Electric Line Replacement Project (Project).
ความรับผิดชอบต่อสังคมของบุคลากรสายสนับสนุน มหาวิทยาลัยมหาสารคาม
Creators: name: คนึงนิตย์ สายสิงห์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ความรับผิดชอบ, สังคม, บุคลากรสายสนับสนุน

description: 1, 5, วารสารสาระคาม
Two energy scales and close relationship between the pseudogap and superconductivity in underdoped cuprate superconductors
Creators: name: Wen, Hai-Hu
name: Wen, Xiao-Gang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By measuring the low temperature specific heat, the low energy quasi-particle excitation has been derived and analyzed in systematically doped La$_{2-x}$Sr$_{x}$CuO$_{4}$ single crystals. The Volovik's relation predicted for a d-wave superconductor has been well demonstrated in wide doping regime, showing a robust evidence for the d-wave pairing symmetry. Furthermore the nodal gap slope $v_Δ$ of the superconducting gap is derived and is found to follow the same doping dependence of the pseudogap obtained from ARPES and tunnelling measurement. This strongly suggests a close relationship between the pseudogap and superconductivity. Taking the entropy conservation into account, we argue that the ground state of the pseudogap phase should have Fermi arcs with finite density of states at zero K, and the transport data show that it behaves like an insulator due to probably weak localization. A nodal metal picture for the pseudogap phase cannot interpret the data. Based on the Fermi arc picture for the pseudogap phase it is found that the superconducting energy scale or $T_c$ in underdoped regime is governed by both the maximum gap and the spectral weight from the Fermi arcs. This suggests that there are two energy scales: superconducting energy scale and the pseudogap. The superconductivity may be formed by the condensation of Fermi arc quasiparticles through pairing by exchanging virtue bosons.
description: 4 pages, 5 figures
Collision Probabilities in the Edgeworth-Kuiper belt
Creators: name: Abedin, Abedin Y.
name: Kavelaars, JJ
name: Greenstreet, Sarah
name: Petit, Jean-Marc
name: Gladman, Brett
name: Lawler, Samantha
name: Bannister, Michele
name: Alexandersen, Mike
name: Chen, Ying-Tung
name: Gwyn, Stephen
name: Volk, Kathryn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Here, we present results on the intrinsic collision probabilities, $ P_I$, and range of collision speeds, $V_I$, as a function of the heliocentric distance, $r$, in the trans-Neptunian region. The collision speed is one of the parameters, that serves as a proxy to a collisional outcome e.g., complete disruption and scattering of fragments, or formation of crater, where both processes are directly related to the impact energy. We utilize an improved and de-biased model of the trans-Neptunian object (TNO) region from the "Outer Solar System Origins Survey" (OSSOS). It provides a well-defined orbital distribution model of TNOs, based on multiple opposition observations of more than 1000 bodies. In this work we compute collisional probabilities for the OSSOS models of the main classical, resonant, detached+outer and scattering TNO populations. The intrinsic collision probabilities and collision speeds are computed using the Öpik's approach, as revised and modified by Wetherill for non-circular and inclined orbits. The calculations are carried out for each of the dynamical TNO groups, allowing for inter-population collisions as well as collisions within each TNO population, resulting in 28 combinations in total. Our results indicate that collisions in the trans-Neptunian region are possible over a wide range in ($r, V_I$) phase space. Although collisions are calculated to happen within $r\sim 20 - 200$~AU and $V_I \sim 0.1$~km/s to as high as $V_I\sim9$~km/s, most of the collisions are likely to happen at low relative velocities $V_I<1$~km/s and are dominated by the main classical belt.
description: 13 pages, 6 figures
Η διαχείριση της διακίνησης κενών εμπορευματοκιβωτίων: Μαθηματική προτυποποίηση της λειτουργίας εικονικού σταθμού εμπορευματοκιβωτίων
Creators: name: Θεοφάνης, Σωτήριος Ι.
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Κενά Εμπορευματοκιβώτια
Ανισορροπίες Διακίνησης Εμπορευματοκιβωτίων
Εικονικός Σταθμός Εμπορευματοκιβωτίων
Άμεση Ανταλλαγή Κενών Εμπορευματοκιβωτίων
Empty Containers
Container Imbalances
Virtual Container Yard
Street Turns

description: Σκοπός της διατριβής ήταν κατ’ αρχήν η μελέτη και πρωτότυπη ανάλυση της Εφοδιαστικής και της Αλυσίδας Αξίας διαχείρισης των Εμπορευματοκιβωτίων με έμφαση στη διαχείριση των Κενών Εμπορευματοκιβωτίων και των προβλημάτων που οδηγούν στη συσσώρευση τους και σχετίζονται με την ανισορροπία διακίνησης φορτίων. Εξετάσθηκαν στη συνέχεια τα λειτουργικά χαρακτηριστικά και οι απαιτήσεις της απευθείας ανταλλαγής εμπορευματοκιβωτίων και αναπτύχθηκαν το πλαίσιο, οι ανάγκες χρηστών και η αρχιτεκτονική ενός Εικονικού Σταθμού Εμπορευματοκιβωτίων, δηλαδή ηλεκτρονικής πλατφόρμας για την απευθείας ανταλλαγή τους. Έγινε Μαθηματική Προτυποποίηση της Λειτουργίας του Εικονικού Σταθμού Εμπορευματοκιβωτίων και ανάλυση ευαισθησίας της εφαρμογής του Μαθηματικού Προτύπου που αναπτύχθηκε. Αξιολογήθηκαν σχήματα τιμολόγησης για τη χρήση Εικονικού Σταθμού Εμπορευματοκιβωτίων και αναπτύχθηκε πρότυπο ανάλυσης της οικονομικής βιωσιμότητας της πλατφόρμας και, τέλος, έγινε ανάλυση ευαισθησίας του προτύπου αυτού.
description: The aim of the present thesis was the study and original analysis of the Logistics and the Value Chain of Container Management with emphasis on the management of Empty Containers and the issues leading to their accumulation, pertinent to cargo imbalances. Subsequently, the operational characteristics and the requirements of the direct container interchanges, the so called “street turns”, were studied and the framework, the user needs and the architecture of a Virtual Container Yard, i.e. of an electronic direct interchange platform, were developed. Mathematical Modeling of the operations of a Virtual Container Yard and sensitivity analysis of the mathematical model application were accomplished. Moreover, evaluation of pricing schemes for the use of the Virtual Container Yard and development of a model for economic viability analysis of the platform, were accomplished, as well as sensitivity analysis of this model.
Graph Annotations in Modeling Complex Network Topologies
Creators: name: Dimitropoulos, Xenofontas
name: Krioukov, Dmitri
name: Vahdat, Amin
name: Riley, George
Publisher: name: arXiv
Year: 2007
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: C.2.1; C.2.5; G.3; G.2.2

description: The coarsest approximation of the structure of a complex network, such as the Internet, is a simple undirected unweighted graph. This approximation, however, loses too much detail. In reality, objects represented by vertices and edges in such a graph possess some non-trivial internal structure that varies across and differentiates among distinct types of links or nodes. In this work, we abstract such additional information as network annotations. We introduce a network topology modeling framework that treats annotations as an extended correlation profile of a network. Assuming we have this profile measured for a given network, we present an algorithm to rescale it in order to construct networks of varying size that still reproduce the original measured annotation profile. Using this methodology, we accurately capture the network properties essential for realistic simulations of network applications and protocols, or any other simulations involving complex network topologies, including modeling and simulation of network evolution. We apply our approach to the Autonomous System (AS) topology of the Internet annotated with business relationships between ASs. This topology captures the large-scale structure of the Internet. In depth understanding of this structure and tools to model it are cornerstones of research on future Internet architectures and designs. We find that our techniques are able to accurately capture the structure of annotation correlations within this topology, thus reproducing a number of its important properties in synthetically-generated random graphs.
การบริหารทรัพยากรในศูนย์พัฒนาเด็กเล็ก  สังกัดองค์การบริหารส่วนตำบล จังหวัดอุดรธานี
Creators: name: ชีวิน อ่อนละออ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การบริหารทรัพยากรศูนย์พัฒนาเด็กเล็ก, องค์การบริหารส่วนตำบล

description: 2, 5, วารสารสาระคาม
Quantum diffusion and spin dynamics of muons in copper
Creators: name: Luke, Graeme
Publisher: name: University of British Columbia
Year: 2010

description: We have studied the quantum diffusion of positive muons in pure copper over the temperature range 20 mK ≤ T ≤ 200 K using the technique of muon spin relaxation (μSR). The rate of diffusion has been deduced from its effect upon the muon polarization function. The measurements were made in a weak longitudinal external magnetic field, where the spin relaxation has proved to be the most sensitive to the muon hop rate below 150 K. Our results for the behaviour of the muon hop rate are well explained by the recently developed theories of the quantum diffusion of light interstitials in metals by Kondo, Yamada and others. These theories stress the effects of the conduction electrons in the metal in providing a form of "friction", retarding the diffusion process. In addition we have utilized the technique of level-crossing resonance spectroscopy, in its first application to μSR measuring the electric quadrupole interaction strength of the copper nuclei. These results have enabled us to show that the muon occupies the same octahedral site at all the temperatures studied. This allows one to rule out the possibility of metastable muon sites contributing to any significant portion of the muon polarization.
Social and mental health impact of COVID-19 pandemic among health professionals of Gandaki Province, Nepal: A mixed method study
Creators: name: Paudel, Shishir
name: Poudel, Sujan
name: Chalise, Anisha
name: Khatri, Dhurba
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 420699
subject: Public health not elsewhere classified

description: BackgroundThe frontline health workers are the key players in the fight against the COVID-19 pandemic, however, several incidences of attacks, stigmatization, and discrimination towards them have been reported throughout the world during the peak of infection. The social impact experienced by health professionals can alter their efficiency and also lead to mental distress. This study aimed to examine the extent of social impact experienced by health professionals currently working in Gandaki Province, Nepal along with the factors associated with their depression status.MethodsThis was a mixed-method study where a cross-sectional online survey was executed among 418 health professionals followed by in-depth interviews with 14 health professionals of Gandaki Province. The bivariate analysis and multivariate logistic regression were performed to identify the factors associated with depression at 5% level of significance. The information collected from the in-depth interviews was clustered into themes by the researchers.ResultsOut of 418 health professionals, 304 (72.7%) expressed that COVID-19 has impacted their family relationships, whereas 293 (70.1%) expressed that it impacted their relationships with friends and relatives, and 282 (68.1%) expressed it impacted their relationships with community people. The prevalence of depression among health professionals was noted at 39.0%. Being a female (aOR:1.425,95% CI:1.220–2.410), job dissatisfaction (aOR:1.826, 95% CI:1.105–3.016), COVID-19 impact on family relation (aOR:2.080, 95% CI:1.081–4.002), COVID-19 impact on relationship with friends and relatives (aOR:3.765, 95% CI:1.989–7.177), being badly treated (aOR:2.169, 95% CI:1.303–3.610) and experiencing moderate (aOR:1.655, 95% CI:1.036–2.645) and severe fear (aOR:2.395, 95% CI:1.116–5.137) of COVID-19 were found to the independent predictors of depression. It was noted that the pandemic has an effect on the social relations of health professionals in multiple ways.ConclusionThis study noted that there is a significant impact of COVID-19 on health professionals in terms of their social and mental health aspects. The social impact experienced by health professionals is an important predictor of their mental health. The mental health and well-being of these vital workforces can be enhanced by focusing on the social aspect during the pandemic.
title: Measuring the Time Discretization Error in Linear Elasticity
Creators: name: Schröder, Bettina
name: Kuhl, Detlef
Publisher: name: Universität Kassel
Year: 2021
Subjects: subject: 530
subject: 620
subject: Diskretisierung
subject: Quantisierungsfehler
subject: Lineare Elastizitätstheorie
subject: Kontinuumsmechanik

description: Gefördert im Rahmen des Projekts DEAL
Mapping the phase diagram of the quantum anomalous Hall and topological Hall effects in a dual-gated magnetic topological insulator heterostructure
Creators: name: Xiao, Run
name: Xiao, Di
name: Jiang, Jue
name: Shin, Jae-Ho
name: Wang, Fei
name: Zhao, Yi-Fan
name: Zhang, Ruo-Xi
name: Richardella, Anthony
name: Wang, Ke
name: Kayyalha, Morteza
name: Chan, Moses H. W.
name: Liu, Chao-Xing
name: Chang, Cui-Zu
name: Samarth, Nitin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We use magnetotransport in dual-gated magnetic topological insulator heterostructures to map out a phase diagram of the topological Hall and quantum anomalous Hall effects as a function of the chemical potential (primarily determined by the back gate voltage) and the asymmetric potential (primarily determined by the top gate voltage). A theoretical model that includes both surface states and valence band quantum well states allows the evaluation of the variation of the Dzyaloshinskii-Moriya interaction and carrier density with gate voltages. The qualitative agreement between experiment and theory provides strong evidence for the existence of a topological Hall effect in the system studied, opening up a new route for understanding and manipulating chiral magnetic spin textures in real space.
description: Minor corrections to original submission
Insights into the Economy of Open Scholarship: A look into Helsinki University Press with Leena Kaakinen, publishing director
Creators: name: Frank, Gwen
Publisher: name: Zenodo
Year: 2019
Subjects: open scholarship, open science, economic, open, interview, Knowledge Exchange, KE

description: Following the report Knowledge Exchange Approach to Open Scholarship and in line with the recommendations resulting from the workshop Moving from Ambition to Reality, two interconnected activities have been dedicated to the Economy of Open Scholarship, one conceptual, one practical.

The practical activity - Insights into the Economy of Open Scholarship: A Collection of Interviews - have collected examples which illustrate how pioneering initiatives set up and operate new or alternative business models in the area of Open Scholarship.

Interviews with a selection of initiatives have been conducted to build this collection to illustrate the successes and challenges within the economy of Open Scholarship. The purpose of this practical investigation is to inform and inspire a transition to Open Scholarship. Through a collection of interviews, including highlights and currents trends, the collection displays how pioneers and early adopters of openness pave the way for unhindered access to research outputs in relation to research community needs and practices.

Interviews have been conducted with ten selected initiatives including:

1. Open Library of Humanities (OLH) (UK): Martin Paul Eve

2. OpenEdition (FR): Pierre Mounier

3. Opasnet (FI): Jouni Tuomisto

4. ASAPBio (US): Jessica Polka

5. ScienceOpen (GER): Stephanie Dawson

6. HRČAK (HR): Jadranka Stojanovski

7. Helsinki University Press (HUP) (FI): Leena Kaakinen

8. Impactstory (US): Heather Piwowar

9. Figshare (UK): Mark Hahnel

10. Zenodo (CH): Tim Smith

Full details of all interviews are available on the Knowledge Exchange website: http://www.knowledge-exchange.info/event/insights-into-open-scholarship
SO(3) symmetry between Neel and ferromagnetic order parameters for graphene in a magnetic field
Creators: name: Herbut, Igor F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: I consider the Hubbard model of graphene in an external magnetic field and in the Hartree-Fock approximation. In the continuum limit, the ground state energy at half filling becomes nearly symmetric under rotations of the three-component vector (N1,N2,m), with the first two components representing the Neel order parameter orthogonal to and the third component the magnetization parallel with the external magnetic field. When the symmetry breaking effects arising from the lattice, Zeeman coupling, and higher Landau levels are included the system develops a quantum critical point at which the antiferromagnetic order disappears and the magnetization has a kink. The observed incompressible state at filling factor one is argued to arise due to a finite third component of the Neel order parameter at these electron densities. Recent experiments appear consistent with vanishing N1 and N2, and finite N3, at the filling factors zero and one, respectively.
description: 5 revtex pages: new figure, new eqs. 20-22, and the discussion of the experiment of Jiang et al added (v2). Cosmetic changes (v3). Accepted in PRB
Many-body theory of excitation dynamics in an ultracold Rydberg gas
Creators: name: Ates, Cenap
name: Pohl, Thomas
name: Pattard, Thomas
name: Rost, Jan M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We develop a theoretical approach for the dynamics of Rydberg excitations in ultracold gases, with a realistically large number of atoms. We rely on the reduction of the single-atom Bloch equations to rate equations, which is possible under various experimentally relevant conditions. Here, we explicitly refer to a two-step excitation-scheme. We discuss the conditions under which our approach is valid by comparing the results with the solution of the exact quantum master equation for two interacting atoms. Concerning the emergence of an excitation blockade in a Rydberg gas, our results are in qualitative agreement with experiment. Possible sources of quantitative discrepancy are carefully examined. Based on the two-step excitation scheme, we predict the occurrence of an antiblockade effect and propose possible ways to detect this excitation enhancement experimentally in an optical lattice as well as in the gas phase.
description: 12 pages, 8 figures
title: Successfully Early Weaning Of Atlantic Halibut (Hippoglossus Hippoglossus L.) In Small Shallow Raceway Systems
Creators: name: Næess, Tore
name: Hamre, Kristin
name: Holm, Jens Christian
Publisher: name: ASC 1998 - L
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.Small raceways were used in a weaning experiment with Atlantic halibut larvae. The size of the tanks were 1.0 x 0.4 m with water level of 1-2 cm. Duplicate larval groups were tranferred to the raceways from circular first feeding tanks at 0.07, 0.10 and 0.16 g wet weight, while recommended weaning size of this species is 0.2 - 0.3 g. During the 7 first days of weaning, Artemia was used as food supplement in combination with the formulated dry feed. Therafter only dry feed was used. The dry feed used in this experiment was produced by a special heat technique. The 0.07, 0.10 and 0.16 g larval groups were evaluated after 31, 25 and 17 days, respectively, obtaining an average survival of 81.5, 78.0 and 97.1 % and a specific daily growth rate of 3.13, 3.16 and 2.35 %, respectively. In the Artemia control group a survival rate of 96.0 % and a growth rate of 5.27 % was acchieved. The successful weaning at these small sizes considerably reduced the live food period. Based on the present knowledge of the energetic demands of this species it is calculated that weaning at 0.07 g compared with 0.25 g will reduce the amount of Artemia needed by approximately 70 %. No differences in pigmentation or degree of completed eye migration was detected between groups, indicating this to be determined at earlier developmental stages.
Radiation Testing of Consumer High-Speed LSI Chips for the Next Space VLBI Mission, VSOP-2
Creators: name: Wajima, Kiyoaki
name: Kawaguchi, Noriyuki
name: Murata, Yasuhiro
name: Hirabayashi, Hisashi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We performed two types of radiation testing on high-speed LSI chips to test their suitability for use in wideband observations by the Japanese next space VLBI mission, VSOP-2. In the total ionization dose experiment we monitored autocorrelation spectra which were taken with irradiated LSI chips and the source current at intervals up to 1,000 hours from the ionization dose, but we could not see any change of these features for the chips irradiated with dose rates expected in the VSOP-2 mission. In the single event effect experiment, we monitored the cross correlation phase and power spectra between the data from radiated and non-radiated devices, and the source current during the irradiation of heavy-ions. We observed a few tens of single event upsets as discrete delay jumps for each LSI. We estimated the occurrence rate of single events in space as between once a few days to once a month. No single event latch-up was seen in any of the LSIs. These results show that the tested LSIs have sufficient tolerance to the environment for space VLBI observations.
description: 6 pages, 14 figures, 1 table, to appear in PASJ, Vol.59, No.6
Where to Refuel: Modeling On-the-way Choice of Convenience Outlet
Creators: name: Pramono, Ari
name: Oppewal, Harmen
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: This paper introduces on-the-way choice of retail outlet as a form of convenience shopping. It presents a model of on-the-way choice of retail outlet and applies the model in the context of fuel retailing to explore its implications for segmentation and spatial competition. The model is a latent class random utility choice model. An application to gas station choices observed in a medium-sized Asian city show the model to fit substantially better than existing models. The empirical results indicate consumers may adopt one of two decision strategies. When adopting an immediacy-oriented strategy they behave in accordance with the traditional gravity-based retail models and tend to choose the most spatially convenient outlet. When following a destination-oriented strategy they focus more on maintaining their overall trip efficiency and so will tend to visit outlets located closer to their main destination and are more susceptible to retail agglomeration effects. The paper demonstrates how the model can be used to inform segmentation and local competition analyses that account for variations in these strategies as well as variations in consumer type, origin and time of travel. Simulations of a duopoly setting further demonstrate the implications.
Peierls/Su-Schrieffer-Heeger polarons in two dimensions
Creators: name: Zhang, Chao
name: Prokof'ev, Nikolay V.
name: Svistunov, Boris V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Polarons with different types of electron-phonon coupling have fundamentally different properties. When the dominant interaction is between the electron density and lattice displacement, the momentum of the ground state does not change and the polaron gets exponentially heavy at strong coupling. In contrast, one-dimensional Peierls/Su-Schrieffer-Heeger (PSSH) polarons with interaction originating from displacement-modulated hopping feature a shift of the ground-state momentum to finite values and moderate values of effective mass as coupling is increased REF[Phys. Rev. Lett. 105, 266605 (2010)]. Based on Diagrammatic Monte Carlo method, we investigate whether unusual properties of PSSH polarons depend on the type of the displacement-modulated hopping and to what degree they survive in higher dimension. We study two different PSSH models: with bosonic degrees of freedom residing on sites (model A) and bonds (model B) of the two-dimensional square lattice. For model A, we find that in both adiabatic and intermediate regimes, the momentum of the ground state experiences a continuous transition from zero to a finite value as a function of coupling strength. The transition is driven by quadratic instability of the dispersion function, implying that effective mass diverges at the critical point, and then decreases in an anisotropic fashion with increasing coupling. Unexpectedly, for model B, the momentum of the ground state always stays at zero and the effective mass increases monotonously with coupling. The increase is far from exponential and tends to level-off at strong interaction, resulting in relatively light polarons. Having light polarons in the strong coupling regime is crucial for the bi-polaron mechanism of high-temperature superconductivity REF[Phys. Rev. Lett. 121, 247001 (2018)].
description: 10 pages, 10 figures
Additional file 1 of The influence of probable rapid eye movement sleep behavior disorder and sleep insufficiency on fall risk in a community-dwelling elderly population
Creators: name: Han, Chao
name: An, Jing
name: Chan, Piu
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology

description: Additional file 1 Supplementary Table 1. Baseline characteristics of included participants versus excluded participants.
title: High Rate Algal Pond For The Treatment Of Marine Effluent From A Semi-Closed Fish Rearing System
Creators: name: Pagand, P.
name: Blancheton, J-P.
name: Lemoalle, J.
name: Casellas, C.
Publisher: name: ASC 1998 - L
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.High rate algal pond treatment has been applied to the effluents of a semi-closed sea water aquaculture system of Southern France. The fish reared were Dicentrarchus labrax, and the effluents contained around 102 mg.L·1 of dissolved inorganic nitrogen and 1.3 mg.L-1 of reactive phosphorus. On a yearly mean, the algal pond removed 60% of the dissolved N and P inputs which were converted into Ulvacea during summer and autumn and into phytoplankton in winter and spring. The succession between macro- and micro-algae was related to seasonal changes in daily irradiance, temperature or salinity. This first year study indicated the possibility for marine fish culture wastes treatment through high rate algal ponds, and the strong climatic influence on the algal community.
Generating Bug-Fixes Using Pretrained Transformers
Creators: name: Drain, Dawn
name: Wu, Chen
name: Svyatkovskiy, Alexey
name: Sundaresan, Neel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Detecting and fixing bugs are two of the most important yet frustrating parts of the software development cycle. Existing bug detection tools are based mainly on static analyzers, which rely on mathematical logic and symbolic reasoning about the program execution to detect common types of bugs. Fixing bugs is typically left out to the developer. In this work we introduce DeepDebug: a data-driven program repair approach which learns to detect and fix bugs in Java methods mined from real-world GitHub repositories. We frame bug-patching as a sequence-to-sequence learning task consisting of two steps: (i) denoising pretraining, and (ii) supervised finetuning on the target translation task. We show that pretraining on source code programs improves the number of patches found by 33% as compared to supervised training from scratch, while domain-adaptive pretraining from natural language to code further improves the accuracy by another 32%. We refine the standard accuracy evaluation metric into non-deletion and deletion-only fixes, and show that our best model generates 75% more non-deletion fixes than the previous state of the art. In contrast to prior work, we attain our best results when generating raw code, as opposed to working with abstracted code that tends to only benefit smaller capacity models. Finally, we observe a subtle improvement from adding syntax embeddings along with the standard positional embeddings, as well as with adding an auxiliary task to predict each token's syntactic class. Despite focusing on Java, our approach is language agnostic, requiring only a general-purpose parser such as tree-sitter.
Influence of the lattice topography on a three-dimensional, controllable Brownian motor
Creators: name: Hagman, H.
name: Dion, C. M.
name: Sjolund, P.
name: Petra, S. J. H.
name: Kastberg, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study the influence of the lattice topography and the coupling between motion in different directions, for a three-dimensional Brownian motor based on cold atoms in a double optical lattice. Due to controllable relative spatial phases between the lattices, our Brownian motor can induce drifts in arbitrary directions. Since the lattices couple the different directions, the relation between the phase shifts and the directionality of the induced drift is non trivial. Here is therefore this relation investigated experimentally by systematically varying the relative spatial phase in two dimensions, while monitoring the vertically induced drift and the temperature. A relative spatial phase range of 2pi x 2pi is covered. We show that a drift, controllable both in speed and direction, can be achieved, by varying the phase both parallel and perpendicular to the direction of the measured induced drift. The experimental results are qualitatively reproduced by numerical simulations of a simplified, classical model of the system.
Isolate record for VAFB-ISO-669
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Shell
valueUri: https://core.tdar.org/browse/material-type/14/shell
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-669. The artifact is a complete abalone.