cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SAO-6m Telescope Spectroscopic Observations of Globular Clusters in Nearby Galaxies
Creators: name: Sharina, Margarita E.
name: Chandar, Rupali
name: Puzia, Thomas H.
name: Goudfrooij, Paul
name: Davoust, Emmanuel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of medium-resolution spectroscopy of 28 globular clusters (GCs) in six nearby galaxies of different luminosities and morphological types, situated in: M33 (15 objects), M31 (3), IC10 (4), UGCA86 (4), HolmbergIX (1), and DDO71 (1) obtained at the Special Astrophysical Observatory 6-meter telescope. Measurements of Lick absorption-line indices and comparison with SSP models enabled us to obtain their spectroscopic ages, metallicities and alpha-element to Fe abundance ratios. We found that all old and intermediate-age GCs in our sample have low metallicities [Z/H] < -0.8 dex. Metal-rich clusters are young and are preferentially found in galaxies more massive than ~10^9 M_sun. The least massive dwarfs of our sample, DDO71 and HolmbergIX, host one massive intermediate-age and one massive young metal-poor GC, respectively. [a/Fe] abundance ratios tend to be enhanced but closer to solar values for dwarf galaxies compared to GCs in more massive galaxies. We analyse the age-metallicity relation for GCs in our galaxy sample and others from the literature, and find, that 1) there is a general trend for GCs in low surface brightness dwarf galaxies to be more metal-poor at a given age than GCs in more massive galaxies; 2) the GC metallicity spread is wider for more massive galaxies; 3) intermediate-age GCs in early-type dwarf galaxies are more metal-rich at any given age than those in irregular galaxies of similar luminosity.
description: 23 pages, 8 figures, 15 tables, accepted for publication in MNRAS
Time Evolution of K0 - anti K0, System in Spectral Formulation
Creators: name: M. Nowakowski
Publisher: name: INFN Open Access Repository
Year: 1996

description: We reanalyse the time evolution of the K0 -`K0 system in the language of certain spectral function whose Fourier transforms give the time dependent survival and transition amplitudes. Approximating the spectral function by an one-pole ansatz we give insight into the limitation of the validity of one-pole approximation, not only for small/large time scales, but also for intermediate times where new effects, albeit small, are possible. It will be shown that the same validity restriction apply to the known formulae of Weisskopf-Wigner approximation as well. The present analysis can also be applied to the effect of vacuum regeneration of KL and KS, a possibility pointed out by Khalfin. As a result of this possible new contributions to the well known oscillatory terms will enter the time depend transition probanilities. These new terms are not associated with small/large time behaviour of the amplitudes and therefore their magnitude is apriori unknown. It will be shown that the order of magnitude of this new effect is very small and, in principle, its exact determination lies outside the scope of one-pole ansatz.
First  Test of Cronos, the NESTOR Slow Controls System
Creators: name: P. Locchi
name: A. Marini
name: L. Trasatti
Publisher: name: INFN Open Access Repository
Year: 1997

description: A prototype of the NESTOR[1,2] Slow Controls System, CRONOS (Controls for Realtime Observations of Nestor and Oceanographic Studies) was assembled and tested in the Titanium sphere of two floors. The system was used to measure the temperature distribution inside the closed spheres.
Quantitative interpretations of anomalous lead isotope abundances
Creators: name: Kanasewich, Ernest Raymond
Publisher: name: University of British Columbia
Year: 2011

description: A new method has been proposed for determining the age of lead sulfide mineralization from anomalous lead Isotope abundances. The anomalous leads are most readily recognized by the linear relationship of the isotope ratios on any compositional diagram. The method assumes that the initial stage of lead isotope development occurred in a system having a uniform distribution of uranium, thorium and lead. This accords with experimental results obtained by the writer and other research workers at the University of British Columbia that single-stage isochrons as proposed by Houtermans are either very short or do not exist. Consider t₁ to be a time of tectonic activity during which ordinary leads were differentiated from a deep source and either concentrated to form a lead deposit at this time or disseminated throughout the upper crust. Contemporaneously uranium and thorium bearing solutions were incorporated into the same environment. At time t₂ tectonic activity recurred in the area. Some of the ordinary leads were remobilized and became contaminated with radiogenic lead to form anomalous lead deposits. Existing lead isotope analyses yield the following results. At Broken Hill, Australia, t₁ is 1600 million years, while t₂ is 510 ± 80 m.y. For Goldfields, Saskatchewan, t₁, is 2015 m.y. while t₂ is 560 ± 250 m.y. At Sudbury, Ontario, t₁ is 1730 m.y. and t₂ is 870 ± 280 m.y. For lead deposits around the Ozark Dome area, including Joplin and Bonne Terre, Missouri, t₁ is 1350 m.y. and t₂ is about 115 m.y. For leads in west-central New Mexico, t₁ is 1490 m.y. and t₂ is about 69 m.y. The errors in the estimates are generally quite large but the values quoted are consistent with available geological and chronological data. The simplest type of anomalous leads which can occur is a mixture of two ordinary leads. This has only been found to occur on the boundary between two geological provinces. Examples of this type have been identified in the Cobalt area, Ontario and in the Baltic Shield along the border between the Fenno-Karelides and Svecofennides. A large proportion of anomalous lead Isotope measurements may be interpreted on the basis of the two-stage models outlined above. Extension of this model to an n-stage system is considered.
SUSY WT identity in a lattice formulation of 2D $\mathcal{N}=(2,2)$ SYM
Creators: name: Kadoh, Daisuke
name: Suzuki, Hiroshi
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We address some issues relating to a supersymmetric (SUSY) Ward-Takahashi (WT) identity in Sugino's lattice formulation of two-dimensional (2D) $\mathcal{N}=(2,2)$ $SU(k)$ supersymmetric Yang-Mills theory (SYM). A perturbative argument shows that the SUSY WT identity in the continuum theory is reproduced in the continuum limit without any operator renormalization/mixing and tuning of lattice parameters. As application of the lattice SUSY WT identity, we show that a prescription for the hamiltonian density in this lattice formulation, proposed by Kanamori, Sugino and Suzuki, is justified also from a perspective of an operator algebra among correctly-normalized supercurrents. We explicitly confirm the SUSY WT identity in the continuum limit to the first nontrivial order in a semi-perturbative expansion.
description: 15 pages, uses elsart.cls, the final version to appear in Phys. Lett. B
The lemming cycle at Baker Lake, N.W.T., during 1959-61
Creators: name: Krebs, Charles J.
Publisher: name: University of British Columbia
Year: 2011

description: A three year study covering one cycle in numbers of the brown and varying lemmings has been carried out at Baker Lake, Keewatin, N.W.T. An attempt was made to describe the events of the cycle in detail by snap trapping and live trapping techniques and by detailed autopsies on about 3U00 animals and from this to determine what explanations would fit the observations. Increase began from very low numbers in the summer of 1959 with tremendous population growth occurring over the winter of 1959-60. Little further increase occurred in the peak summer of 1960. A great decline occurred over the winter of 1960-61, and this decline continued through the summer of 1961 on the Main Study Area. Two changes in reproduction were associated with this cycle--changes in the length of the breeding season and in the weight at sexual maturity. Winter breeding occurred only in the period of increase, and a shortened summer breeding season occurred in the peak and to some degree in the decline. Young male Lemmus matured in the summer of increase but not in the peak or in the decline; young females matured in the increase and decline summers but not in the peak. The major change in mortality was a very high juvenile mortality in the summer of the decline. Changes in the quality of the animals were manifested not only by these reproductive and mortality changes but also by a 20-30% increase in mean body weights of the adults in the peak summer compared to the increase or decline summers. The role of the extrinsic factors is considered. There was no widespread destruction of the habitat, or any evidence of quantitative or qualitative food shortage in the animals of the decline. Neither predators, disease, nor parasites seemed to be the cause of the observed changes in mortality. The role of the intrinsic factors is also considered. Summer adrenal and spleen weights showed no clear relationship to the cycle. The amount of wounding on skins showed strong seasonal and yearly changes and was not a simple function of density. It was concluded from these observations that the lemming cycle could not be adequately explained by the conventional extrinsic factors such as food supply, but rather that it is essentially a self-regulatory phenomenon. The stress hypothesis proposed by Christian was also rejected as an adequate explanation of these events. The idea of Chitty that populations change in quality during changes in density was fully supported by these results. Behavioral changes in the population may constitute the crux of the lemming cycle, and Chitty's suggestion that these fluctuations may represent a genetic polymorphism involving aggressive behavior is not refuted by these data.
Josephson Junctions with a synthetic antiferromagnetic interlayer
Creators: name: Khasawneh, Mazin A.
name: Pratt,, William P.
name: Birge, Norman O.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report measurements of the critical current vs. Co thickness in Nb/Cu/Co/Ru/Co/Cu/Nb Josephson junctions, where the inner Co/Ru/Co trilayer is a "synthetic antiferromagnet" with the magnetizations of the two Co layers coupled antiparallel to each other via the 0.6 nm-thick Ru layer. Due to the antiparallel magnetization alignment, the net intrinsic magnetic flux in the junction is nearly zero, and such junctions exhibit excellent Fraunhofer patterns in the critical current vs. applied magnetic field, even with total Co thicknesses as large as 23 nm. There are no apparent oscillations in the critical current vs. Co thickness, consistent with theoretical expectations for this situation. The critical current of the junctions decays over 4 orders of magnitude as the total Co thickness increases from 3 to 23 nm. These junctions may serve as useful templates for future explorations of spin-triplet superconducting correlations, which are predicted to occur in supercon- ducting/ferromagnetic hybrid systems in the presence of certain types of magnetic inhomogeneity.
description: 4 pages, 5 figures
MAKTABGACHA TA'LIMDA STEAM TEXNOLOGIYASI
Creators: name: Azimjonova Mohichexra Bunyodbek qizi
Publisher: name: Zenodo
Year: 2025

description: Annotatsiya: Ushbu maqolada bolalarni STEAMga jalb qilish. Ushbu ta‘lim maktabgacha yoshdan boshlab boshlanishi kerakligi , shuning uchun dasturlarni bolalar bog‘chalariga kiritish kerakligi. Ilm-fan quvnoq bo‘lishi kerak ekanligi, bolalar uchun qiziqarli va o‘ziga jalb qiluvchi bo‘lishi kerakligi. Bugungi kunda bilim, texnologiya va malakalar eng muhim raqobat ustunligi haqida ma’lumot berilgan.

Kalit so’zlar: KONSEPSIYA, Tanqidiy fikrlash, kreativ, kompetensiya, modellashtirish, tendentsiya, sotsiologiya, integratsiya.

Аннотация: В этой статье вовлекайте детей в STEAM. Такое образование должно начинаться с дошкольного возраста, поэтому программы должны быть включены в детские сады. Эта наука должна быть веселой, интересной и увлекательной для детей. Сегодня знания, технологии и навыки являются важнейшим конкурентным преимуществом.

Ключевые слова: КОНЦЕПЦИЯ, критическое мышление, креатив, компетентность, моделирование, тренд, социология, интеграция.

Abstract: In this article, Involve children in STEAM. This education should start from preschool age, so programs should be included in kindergartens. That science should be fun, interesting and engaging for children. Today, knowledge, technology and skills are the most important competitive advantage.

Key words: CONCEPT, Critical thinking, creative, competence, modeling, trend, sociology, integration.
Sex classification from evoked activity during naturalistic viewing
Creators: name: Li, Xuan
name: Fleig, M.
name: Friedrich, Patrick
name: Eickhoff, Simon
name: Weis, Susanne
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: The Organization for Human Brain Mapping (OHBM) , Montreal, Canada, 22 Jul 2023 - 26 Jul 2023
Graphical Interfaces for Mobile Clients and Dashboards
Creators: name: Camprodon, Guillem
name: Smári, Viktor
name: González, Óscar
Publisher: name: Zenodo
Year: 2022
Subjects: Reflow OS
User Interface
User Stories
Software Development
Pilots customization

description: This document documents Reflow OS user interfaces. It aims to support Reflow pilot cities to build their custom software applications to incentivize circular practices in local ecosystems through monitoring and optimization of urban metabolic processes. It describes the effort undertaken within the context of Task 2.5 Graphical Interface Development dedicated to the development of ergonomic, intuitive and customizable graphical interfaces based on the requirements provided in other tasks.
Additional file 1 of LncRNA MEG3 rs3087918 was associated with a decreased breast cancer risk in a Chinese population: a case-control study
Creators: name: Zheng, Yi
name: Wang, Meng
name: Wang, Shuqian
name: Xu, Peng
name: Deng, Yujiao
name: Lin, Shuai
name: Li, Na
name: Liu, Kang
name: Zhu, Yuyao
name: Zhai, Zhen
name: Wu, Ying
name: Dai, Zhijun
name: Zhu, Gaixia
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Plant Biology

description: Additional file 1: Figure S1. The prediction results of s3087918 affect the bind of MEG3 to miRNAs. (A) rs3087918 caused has-miR1203 target gain; (B) rs3087918 caused has-miR-139-3p target loss; (C) rs3087918 caused has-miR-5091 target loss. Table S1. Primers used for this study. Table S2. Stratified Analysis of rs11160608 and rs7158663 by age, BMI and menopausal status. Table S3. Association analysis between three SNPs inMEG3 and Molecular typing of breast cancer. Table S4. Rs3087918 influence MEG3 binding to miRNAs based on LncRNASNP2 database.
Additional file 6 of Plasma ctDNA increases tissue NGS-based detection of therapeutically targetable mutations in lung cancers
Creators: name: Xie, Jianjiang
name: Yao, Weishen
name: Chen, Lingxiu
name: Zhu, Wenjun
name: Liu, Qiang
name: Geng, Geng
name: Fang, Jing
name: Zhao, Yang
name: Xiao, Li
name: Huang, Zhenhua
name: Zhao, Jing
Publisher: name: figshare
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 6
Casimir-Polder forces between two accelerating atoms and the Unruh effect
Creators: name: Marino, Jamir
name: Passante, Roberto
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The Casimir-Polder force between two atoms with equal uniform acceleration and separated by a constant distance R is considered. We show that, in the low-acceleration limit, while the near-zone R^{-6} behavior of the interatomic interaction energy is not changed by the acceleration of the atoms, the far-zone interaction energy decreases as R^{-5} instead of the well-known R^{-7} behavior for inertial atoms. Possibility of an indirect detection of the Unruh effect through measurements of the Casimir-Polder force between the two accelerating atoms is also suggested. We also consider a heuristic model for calculating the Casimir-Polder potential energy between the two atoms in the high-acceleration limit.
description: Contribution to the Proceedings of the QFEXT09 Conference, Norman, Oklahoma, USA
Recent Progress in Lattice QCD Thermodynamics
Creators: name: DeTar, Carleton
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: This review gives a critical assessment of the current state of lattice simulations of QCD thermodynamics and what it teaches us about hot hadronic matter. It outlines briefly lattice methods for studying QCD at nonzero temperature and zero baryon number density with particular emphasis on assessing and reducing cutoff effects. It discusses a variety of difficulties with methods for determining the transition temperature. It uses results reported recently in the literature and at this conference for illustration, especially those from a major study carried out by the HotQCD collaboration.
Infrared Dark Clouds in the Small Magellanic Cloud?
Creators: name: Lee, Min-Young
name: Stanimirović, Snezana
name: Ott, Jürgen
name: van Loon, Jacco Th.
name: Bolatto, Alberto D.
name: Jones, Paul A.
name: Cunningham, Maria R.
name: Devine, Kathryn E.
name: Oliveira, Joana M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have applied the unsharp-masking technique to the 24 $μ$m image of the Small Magellanic Cloud (SMC), obtained with the Spitzer Space Telescope, to search for high-extinction regions. This technique has been used to locate very dense and cold interstellar clouds in the Galaxy, particularly infrared dark clouds (IRDCs). Fifty five candidate regions of high-extinction, namely high-contrast regions (HCRs), have been identified from the generated decremental contrast image of the SMC. Most HCRs are located in the southern bar region and mainly distributed in the outskirts of CO clouds, but most likely contain a significant amount of H2. HCRs have a peak-contrast at 24 $μ$m of 2 - 2.5 % and a size of 8 - 14 pc. This corresponds to the size of typical and large Galactic IRDCs, but Galactic IRDCs are 2 - 3 times darker at 24 $μ$m than our HCRs. To constrain the physical properties of the HCRs, we have performed NH3, N2H+, HNC, HCO+, and HCN observations toward one of the HCRs, HCR LIRS36-EAST, using the Australia Telescope Compact Array and the Mopra single-dish radio telescope. We did not detect any molecular line emission, however, our upper limits to the column densities of molecular species suggest that HCRs are most likely moderately dense with n ~ 10^{3} cm-3. This volume density is in agreement with predictions for the cool atomic phase in low metallicity environments. We suggest that HCRs may be tracing clouds at the transition from atomic to molecule-dominated medium, and could be a powerful way to study early stages of gas condensation in low metallicity galaxies. Alternatively, if made up of dense molecular clumps < 0.5 pc in size, HCRs could be counterparts of Galactic IRDCs, and/or regions with highly unusual abundance of very small dust grains.
description: accepted for publication in the Astronomical Journal
A Connection Between Apparent VLBA Jet Speeds and Initial Active Galactic Nucleus Detections Made by the Fermi Gamma-ray Observatory
Creators: name: Lister, M. L.
name: Homan, D. C.
name: Kadler, M.
name: Kellermann, K. I.
name: Kovalev, Y. Y.
name: Ros, E.
name: Savolainen, T.
name: Zensus, J. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In its first three months of operations, the Fermi Gamma-Ray Observatory has detected approximately one quarter of the radio-flux-limited MOJAVE sample of bright flat-spectrum active galactic nuclei (AGNs) at energies above 100 MeV. We have investigated the apparent parsec-scale jet speeds of 26 MOJAVE AGNs measured by the Very Long Baseline Array (VLBA) that are in the LAT bright AGN sample (LBAS). We find that the gamma-ray bright quasars have faster jets on average than the non-LBAS quasars, with a median of 15 c, and values ranging up to 34 c. The LBAS AGNs in which the LAT has detected significant gamma-ray flux variability generally have faster jets than the nonvariable ones. These findings are in overall agreement with earlier results based on nonuniform EGRET data which suggested that gamma-ray bright AGNs have preferentially higher Doppler boosting factors than other blazar jets. However, the relatively low LAT detection rates for the full MOJAVE sample (24%) and previously known MOJAVE EGRET-detected blazars (43%) imply that Doppler boosting is not the sole factor that determines whether a particular AGN is bright at gamma-ray energies. The slower apparent jet speeds of LBAS BL Lac objects and their higher overall LAT detection rate as compared to quasars suggest that the former are being detected by Fermi because of their higher intrinsic (unbeamed) gamma-ray to radio luminosity ratios.
description: 5 pages, 3 figures, 2 tables, accepted by the Astrophysical Journal Letters; minor corrections to the text are made
title: Cross-contamination of oilseeds by insecticide residues during storage
Creators: name: Dauguet, S.
name: Fleurat-Lessard, F.
name: Loison, J.
Publisher: name: Julius Kühn-Institut
Year: 2010
Subjects: subject: oilseed storage
subject: cross-contamination
subject: insecticide residues
subject: rapeseed
subject: sunflower

description: Julius-Kühn-Archiv; 425; 827-832
Early life history and possible interaction of five inshore species of fish in Nicola Lake, British Columbia
Creators: name: Miura, Taizo
Publisher: name: University of British Columbia
Year: 2011

description: Early life history, distribution, movement, food habits and interspecific relations of five inshore species, largescale sucker (Catostomus macrocheilus), northern squawfish (Ptychocheilus oregonense), peamouth chub (Mylocheilus caurinum), red side shiner (Richardsonius balteatus), and prickly sculpin (Cottus asper), have been studied during the summers of 1959 - 1961 in Nicola Lake, British Columbia. Analyses were based on specimens periodically sampled with three types of seine nets from various inshore waters of the lake, observation of behaviour of the fish both in nature and in aquaria, and study of plankton, bottom animals and temperature conditions. After emerging, the fry of all species move to the head of the lake where there is a tendency to form an early-summer aggregation. Later, they diverge from the head of the lake along the shore. Fry of all four cypriniform species showed similar diurnal movement. They started to move into the shallow water at dawn and moved out at dusk. In the sculpin, fluctuations in numbers near shore had no direct correlation with time of a day. No species was rigorously restricted to one habitat, although different habitat preferences were observed. To a certain extent the species were separated by difference in distribution in relation to depth. These differences increase with age. A close association among fry of all species in the early summer gradually dissipated. Divergence was also observed in feeding habits of these species. In early summer they are typically plankton feeders, but towards the end of summer their interspecific feeding relations gradually become less because of the divergence in food preference, feeding places and feeding manner. These changes are in turn largely due to morphological changes, in particular those of feeding structures. Since the plankton resources seemed to be insufficient in the shallow inshore area, there may have been competition for food in early summer. Moreover, the fry may have been forced into severe competition by an early-summer aggregation at the head of the lake as well as by similarity in behaviour and habitat. An alternative approach to the problem of demonstrating interspecific relationships was made from comparison of species associations in lakes of the Fraser River drainage. A positive correlation between the surface area and the number of species suggests that the larger the lake, the greater the possibility of coexistence between these species, and that competition in small lakes may be a factor in eliminating some of the species. These findings are discussed in relation to the current controversy concerning specialization of temperate and tropical freshwater fishes. It is concluded that in large complex environments freshwater fishes are afforded the opportunity for specialization, whereas in small or simple environments, more generalized behavior leads to competition between species.
CPT and Lorentz-invariance violation
Creators: name: Lehnert, Ralf
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The largest gap in our understanding of nature at the fundamental level is perhaps a unified description of gravity and quantum theory. Although there are currently a variety of theoretical approaches to this question, experimental research in this field is inhibited by the expected Planck-scale suppression of quantum-gravity effects. However, the breakdown of spacetime symmetries has recently been identified as a promising signal in this context: a number of models for underlying physics can accommodate minuscule Lorentz and CPT violation, and such effects are amenable to ultrahigh-precision tests. This presentation will give an overview of the subject. Topics such as motivations, the SME test framework, mechanisms for relativity breakdown, and experimental tests will be reviewed. Emphasis is given to observations involving antimatter.
description: 6 pages
Calibration of a Highly Granular Hadronic Calorimeter with SiPM Readout
Creators: name: Simon, Frank
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A highly granular hadronic calorimeter (HCAL) based on scintillator tiles with individual readout by silicon photomultipliers (SiPMs) has been constructed by the CALICE collaboration and has been tested extensively in particle beams at CERN. The 7608 SiPMs coupled to scintillator tiles in the approximately 1 cubic meter large calorimeter allow large sample studies of behavior of these devices under varying voltage and temperature as well as their saturation behavior. We also present detailed studies of the temperature dependence of the calorimeter signal in muon and hadron beams. The calibration of the full calorimeter using muons is discussed. In addition, a novel method for calibration and detector studies using minimum-ionizing track segments in hadronic showers, is explored.
description: 4 pages, 9 figures, submitted to the Conference Record of the IEEE NSS 2008, Dresden, Germany
Field-controlled spin current in frustrated spin chains
Creators: name: Kolezhuk, A. K.
name: McCulloch, I. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study states with spontaneous spin current, emerging in frustrated antiferromagnetic spin-$S$ chains subject to a strong external magnetic field. As a numerical tool, we use a non-Abelian symmetry realization of the density matrix renormalization group. The field dependence of the order parameter and the critical exponents are presented for zigzag chains with S=1/2, 1, 3/2, and 2.
description: for a special issue of "Condensed matter physics" on spin systems
Double Degenerate Stars
Creators: name: Xin-Lian, Luo
name: Hua, Bai
name: Lei, Zhao
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Regardless of the formation mechanism, an exotic object, Double Degenerate Star (DDS), is introduced and investigated, which is composed of baryonic matter and some unknown fermion dark matter. Different from the simple White Dwarfs (WDs), there are additional gravitational force provided by the unknown fermion component inside DDSs, which may strongly affect the structure and the stability of such kind of objects. Many possible and strange observational phenomena connecting with them are concisely discussed. Similar to the normal WD, this object can also experience thermonuclear explosion as type Ia supernova explosion when DDS's mass exceeds the maximum mass that can be supported by electron degeneracy pressure. However, since the total mass of baryonic matter can be much lower than that of WD at Chandrasekhar mass limit, the peak luminosity should be much dimmer than what we expect before, which may throw a slight shadow on the standard candle of SNIa in the research of cosmology.
description: 8 pages, 2 figures, 1 Table, uses iopart
Comparing techniques to reduce networks of ethnographic codes co-occurrence
Creators: name: Cottica, Alberto
name: Hassoun, Amelia
name: Kubik, Jan
name: Melançon, Guy
name: Mole, Richard
name: Pinaud, Bruno
name: Renoust, Benjamin
Publisher: name: Zenodo
Year: 2021
Subjects: ethnography, networks, reducton, anthropology

description: Extended abstract of the presentation at the International Conference on Computational Social Sciences (IC2S2) 2021. Part of the POPREBEL project.
title: Evaluating Teachers and Schools Using Student Growth Models
Creators: name: Schafer, William D.
name: Lissitz, Robert W.
name: Zhu, Xiaoshu
name: Zhang, Yuan
name: Hou, Xiaodong
name: Li, Ying
Publisher: name: University of Massachusetts Amherst
Year: 2012

description: Interest in Student Growth Modeling (SGM) and Value Added Modeling (VAM) arises from educators concerned with measuring the effectiveness of teaching and other school activities through changes in student performance as a companion and perhaps even an alternative to status. Several formal statistical models have been proposed for year-to-year growth and these fall into at least three clusters: simple change (e.g., differences on a vertical scale), residualized change (e.g., simple linear or quantile regression techniques), and value tables (varying salience of different achievement level outcomes across two years). Several of these methods have been implemented by states and districts. This paper reviews relevant literature and reports results of a data-based comparison of six basic SGM models that may permit aggregating across teachers or schools to provide evaluative information. Our investigation raises some issues that may compromise current efforts to implement VAM in teacher and school evaluations and makes suggestions for both practice and research based on the results. Accessed 9,761 times on https://pareonline.net from December 17, 2012 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right.
title: Indirect Measures In Evaluation: On Not Knowing What We Don’t Know
Creators: name: Heath, Linda
name: DeHoek, Adam
name: Locatelli, Sara House
Publisher: name: University of Massachusetts Amherst
Year: 2012

description: Evaluators frequently make use of indirect measures of participant learning or skill mastery, with participants either being asked if they have learned material or mastered a skill or being asked to indicate how confident they are that they know the material or can perform the task in question. Unfortunately, myriad research in social psychology has demonstrated that people are very poor judges of their own levels of accomplishment. In this paper, the social psychological dynamics that contribute to biased self-assessments are overviewed. These include the self-serving bias (e.g., Miller & Ross, 1975), the better-than-average effect (e.g., Alicke et al., 1995; Brown, 1986), and the overconfidence phenomenon (Kahneman & Tversky, 1979). Methods of correcting these biased reports are generally ineffective, as illustrated by Kruger and Dunningâ€™s (1999) findings that people lowest in mastery generally lack the metacognition even to understand what mastery looks like. As this type of person learns the skill in question, they often realize the level of their ignorance and lower their self-reported knowledge and skill levels. Although indirect measures of participant learning or mastery might tell us something about the level of confidence of the participants, they probably tell us little about actual ability or knowledge. Implications for applied research are discussed. Accessed 8,048 times on https://pareonline.net from February 06, 2012 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right.
title: Interpreting Multiple Linear Regression: A Guidebook of Variable Importance
Creators: name: Nathans, Laura L.
name: Oswald, Frederick L.
name: Nimon, Kim
Publisher: name: University of Massachusetts Amherst
Year: 2012

description: Multiple regression (MR) analyses are commonly employed in social science fields. It is also common for interpretation of results to typically reflect overreliance on beta weights (cf. Courville & Thompson, 2001; Nimon, Roberts, & Gavrilova, 2010; Zientek, Capraro, & Capraro, 2008), often resulting in very limited interpretations of variable importance. It appears that few researchers employ other methods to obtain a fuller understanding of what and how independent variables contribute to a regression equation. Thus, this paper presents a guidebook of variable importance measures that inform MR results, linking measures to a theoretical framework that demonstrates the complementary roles they play when interpreting regression findings. We also provide a data-driven example of how to publish MR results that demonstrates how to present a more complete picture of the contributions variables make to a regression equation. We end with several recommendations for practice regarding how to integrate multiple variable importance measures into MR analyses. Accessed 103,722 times on https://pareonline.net from April 29, 2012 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right.
Approximate l-State Solutions of the Klein-Gordon Equation for Modified Woods-Saxon Potential With Position Dependent Mass
Creators: name: Arda, Altug
name: Sever, Ramazan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The radial part of the Klein-Gordon equation for the generalized Woods-Saxon potential is solved by using the Nikiforov-Uvarov method in the case of spatially dependent mass within the new approximation scheme to the centrifugal potential term. The energy eigenvalues and corresponding normalized eigenfunctions are computed. The solutions in the case of constant mass are also studied to check out the consistency of our new approximation scheme.
description: 15 pages
title: Item Overexposure in Computerized Classification Tests Using Sequential Item Selection
Creators: name: Huebner, Alan
Publisher: name: University of Massachusetts Amherst
Year: 2012

description: Computerized classification tests (CCTs) often use sequential item selection which administers items according to maximizing psychometric information at a cut point demarcating passing and failing scores. This paper illustrates why this method of item selection leads to the overexposure of a significant number of items, and the performances of three different methods for controlling maximum item exposure rates in CCTs are compared. Specifically, the Sympson-Hetter, restricted, and item eligibility methods are examined in two studies realistically simulating different types of CCTs and are evaluated based upon criteria including classification accuracy, the number of items exceeding the desired maximum exposure rate, and test overlap. The pros and cons of each method are discussed from a practical perspective. Accessed 5,558 times on https://pareonline.net from June 06, 2012 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right.
Additional file 5 of Identification of ferroptosis related biomarkers and immune infiltration in Parkinson’s disease by integrated bioinformatic analysis
Creators: name: Xing, Na
name: Dong, Ziye
name: Wu, Qiaoli
name: Zhang, Yufeng
name: Kan, Pengcheng
name: Han, Yuan
name: Cheng, Xiuli
name: Wang, Yaru
name: Zhang, Biao
Publisher: name: figshare
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 5
title: Defining Authentic Classroom Assessment
Creators: name: Frey, Bruce B.
name: Schmitt, Vicki L.
name: Allen, Justin P.
Publisher: name: University of Massachusetts Amherst
Year: 2012

description: A commonly advocated best practice for classroom assessment is to make the assessments authentic. Authentic is often used as meaning the mirroring of real-world tasks or expectations. There is no consensus, however, in the actual definition of the term or the characteristics of an authentic classroom assessment. Sometimes, the realistic component is not even an element of a researcher's or practitioner's meaning. This study presents a conceptual analysis of authentic as it is used in educational research and training to describe an approach to classroom assessment. Nine distinct components or dimensions of authenticity are identified and only one of those is the realistic nature of the assessment. Accessed 54,632 times on https://pareonline.net from January 12, 2012 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right.
Heavy d-Electron Quasiparticle Interference and Real-space Electronic Structure of Sr3Ru2O7
Creators: name: Lee, Jinho
name: Allan, M. P.
name: Wang, M. A.
name: Farrell, J. E.
name: Grigera, S. A.
name: Baumberger, F.
name: Davis, J. C.
name: Mackenzie, A. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The intriguing idea that strongly interacting electrons can generate spatially inhomogeneous electronic liquid crystalline phases is over a decade old, but these systems still represent an unexplored frontier of condensed matter physics. One reason is that visualization of the many-body quantum states generated by the strong interactions, and of the resulting electronic phases, has not been achieved. Soft condensed matter physics was transformed by microscopies that allowed imaging of real-space structures and patterns. A candidate technique for obtaining equivalent data in the purely electronic systems is Spectroscopic Imaging Scanning Tunneling Microscopy (SI-STM). The core challenge is to detect the tenuous but 'heavy' k-space components of the many-body electronic state simultaneously with its r-space constituents. Sr3Ru2O7 provides a particularly exciting opportunity to address these issues. It possesses (i) a very strongly renormalized 'heavy' d-electron Fermi liquid and (ii) exhibits a field-induced transition to an electronic liquid crystalline phase. Finally, as a layered compound, it can be cleaved to present an excellent surface for SI-STM.
description: Some errors fixed
title: Replication Analysis in Exploratory Factor Analysis: What it is and why it makes your analysis better
Creators: name: Osborne, Jason W.
name: Fitzpatrick, David C.
Publisher: name: University of Massachusetts Amherst
Year: 2012

description: Exploratory Factor Analysis (EFA) is a powerful and commonly-used tool for investigating the underlying variable structure of a psychometric instrument. However, there is much controversy in the social sciences with regard to the techniques used in EFA (Ford, MacCallum, & Tait, 1986; Henson & Roberts, 2006) and the reliability of the outcome. Simulations by Costello and Osborne (2005), for example, demonstrate how poorly some EFA analyses replicate, even with clear underlying factor structures and large samples. Thus, we argue that researchers should routinely examine the stability or volatility of their EFA solutions to gain more insight into the robustness of their solutions and insight into how to improve their instruments while still at the exploratory stage of development. Accessed 13,498 times on https://pareonline.net from November 01, 2012 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right.
High molecular gas fractions in normal massive star forming galaxies in the young Universe
Creators: name: Tacconi, L. J.
name: Genzel, R.
name: Neri, R.
name: Cox, P.
name: Cooper, M. C.
name: Shapiro, K. L.
name: Bolatto, A.
name: Bouche, N.
name: Bournaud, F.
name: Burkert, A.
name: Combes, F.
name: Comerford, J.
name: Davis, M.
name: Schreiber, N. M. Foerster
name: Garcia-Burillo, S.
name: Gracia-Carpio, J.
name: Lutz, D.
name: Naab, T.
name: Omont, A.
name: Shapley, A.
name: Sternberg, A.
name: Weiner, B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Stars form from cold molecular interstellar gas. Since this is relatively rare in the local Universe, galaxies like the Milky Way form only a few new stars per year. Typical massive galaxies in the distant Universe formed stars an order of magnitude more rapidly. Unless star formation was significantly more efficient, this difference suggests that young galaxies were much more gas rich. Molecular gas observations in the distant Universe have so far been largely restricted to very luminous, rare objects, including mergers and quasars. Here we report the results of a systematic survey of molecular gas in samples of typical massive star forming galaxies at ~1.2 and 2.3, when the Universe was 40% and 24% of its current age. Our measurements provide empirical evidence that distant star forming galaxies indeed were gas rich, and that the star formation efficiency is not strongly dependent on cosmic epoch. The average fraction of cold gas relative to total galaxy baryonic mass at z= 2.3 and z=1.2 is ~44% and 34%, three to ten times higher than in today's massive spiral galaxies. The slow decrease between z~2 and 1 probably requires a mechanism of semi-continuous replenishment of fresh gas to the young galaxies.
description: To Appear in Nature Feb 11, 2010; Supplementary Information included here
title: A Demonstration of a Systematic Item-Reduction Approach Using Structural Equation Modeling
Creators: name: Larwin, Karen
name: Harvey, Milton
Publisher: name: University of Massachusetts Amherst
Year: 2012

description: Establishing model parsimony is an important component of structural equation modeling (SEM). Unfortunately, little attention has been given to developing systematic procedures to accomplish this goal. To this end, the current study introduces an innovative application of the jackknife approach first presented in Rensvold and Cheung (1999). Unlike the traditional application of jackknife procedures for the purpose of identifying outliers and influential cases within a dataset, this jackknife procedure is applied for the purpose of identifying and eliminating items from a structural model. Items are identified through the jackknife procedure and eliminated from the model without altering the measurement or structural integrity of the model. The goal of this application is to create the most parsimonious model by reducing the number of items in an inventory, without altering the construct represented by the model. Accessed 10,388 times on https://pareonline.net from April 23, 2012 to December 31, 2019. For downloads from January 1, 2020 forward, please click on the PlumX Metrics link to the right.
Test of PB/SCIFI Electromagnetic Calorimeter Prototypes with Low Energy Photons at LADON
Creators: name: B. Babusci
name: S. Bianco
name: R. Casaccia
name: L. Daniello
name: F. L. Fabbri
name: M. Giardoni
name: M. Lindozzi
name: L. Passamonti
name: V. Russo
name: S. Sarwar
name: L. Votano
name: A. Zallo
name: L. E. Casano
name: A. D' Angelo
name: D. Moricciani
name: F. Ghio
name: B. Girolami
name: D. Hertzog
name: S. Hughes
name: P. Reimer
name: R. Tayloe
Publisher: name: INFN Open Access Repository
Year: 1993

description: In this work we report the complete set of measurements carried out at LADON on small size calorimeter modules composed of a uniform array of plastic scintillating fibers and lead (50:35 by volume ratio) for photons in the energy range 20-80 MeV. Calorimeter properties for both head-on and side-on incidence conditions have been investigated. With photons hitting the fibers laterally, an energy resolution of 4.8%/\\sqrt{E[GeV]} is obtained. This figure includes a 2%/\\sqrt{E[GeV]} term added in quadrature due to the photoelectron statistics.
The Forward GEM Tracker of STAR at RHIC
Creators: name: Simon, F.
name: Balewski, J.
name: Fatemi, R.
name: Hasell, D.
name: Kelsey, J.
name: Majka, R.
name: Page, B.
name: Plesko, M.
name: Underwood, D.
name: Smirnov, N.
name: Sowinski, J.
name: Spinka, H.
name: Surrow, B.
name: Visser, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The STAR experiment at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) is in the process of designing and constructing a forward tracking system based on triple GEM technology. This upgrade is necessary to give STAR the capability to reconstruct and identify the charge sign of W bosons over an extended rapidity range through their leptonic decay mode into an electron (positron) and a neutrino. This will allow a detailed study of the flavor-separated spin structure of the proton in polarized p + p collisions uniquely available at RHIC. The Forward GEM Tracker FGT will consist of six triple GEM disks with an outer radius of ~39 cm and an inner radius of ~10.5 cm, arranged along the beam pipe, covering the pseudo-rapidity range from 1.0 to 2.0 over a wide range of collision vertices. The GEM foils will be produced by Tech-Etch, Inc. Beam tests with test detectors using 10 cm x 10 cm Tech-Etch GEM foils and a two dimensional orthogonal strip readout have demonstrated a spatial resolution of 70 um or better and high efficiency.
description: 3 pages, 4 figures, submitted to the Conference Record of the IEEE NSS 2008, Dresden, Germany
Additional file 1 of Cerebro-spinal fluid glucose and lactate concentrations changes in response to therapies in patIents with primary brain injury: the START-TRIP study
Creators: name: Gouvêa Bogossian, Elisa
name: Taleb, Chahnez
name: Aspide, Raffaele
name: Badenes, Rafael
name: Battaglini, Denise
name: Bilotta, Federico
name: Blandino Ortiz, Aaron
name: Caricato, Anselmo
name: Castioni, Carlo Alberto
name: Citerio, Giuseppe
name: Ferraro, Gioconda
name: Martino, Costanza
name: Melchionda, Isabella
name: Montanaro, Federica
name: Monleon Lopez, Berta
name: Nato, Consolato Gianluca
name: Piagnerelli, Michael
name: Picetti, Edoardo
name: Robba, Chiara
name: Simonet, Olivier
name: Thooft, Aurelie
name: Taccone, Fabio Silvio
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Neuroscience
Biological Sciences not elsewhere classified
Mental Health

description: Additional file 1. Supplemental electronic material of STAR-TRIP study.