cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of light-assisted tunable interaction on the position response function of cold atoms
Creators: name: Misra, Anirban
name: Satpathi, Urbashi
name: Sinha, Supurna
name: Roy, Sanjukta
name: Chaudhuri, Saptarishi
Publisher: name: arXiv
Year: 2024
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The position response of a particle subjected to a perturbation is of general interest in physics. We study the modification of the position response function of an ensemble of cold atoms in a magneto-optical trap in the presence of tunable light-assisted interactions. We subject the cold atoms to an intense laser light tuned near the photoassociation resonance and observe the position response of the atoms subjected to a sudden displacement. Surprisingly, we observe that the entire cold atomic cloud undergoes collective oscillations. We use a generalised quantum Langevin approach to theoretically analyse the results of the experiments and find good agreement.
description: 20 pages, 7 Figures
Untargeted metabolomics and quantitative label-free proteomics analysis of whole milk protein from Chinese native buffaloes
Creators: name: Prabakusuma, Adhita Sri
name: Shi, Yanan
name: Zhao, Qiong
name: Aleryani, Hamzah
name: Kong, Xiaoyan
name: Shi, Xianwei
name: Huang, Aixiang
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biochemistry
Medicine
Cell Biology
Chemical Sciences not elsewhere classified

description: This study aimed to analyze metabolite abundances and proteome differences between buffalo milk from Binglangjiang (BBM) and Dehong (DBM). Untargeted UPLC-MS/MS, label-free proteomics approach, and bioinformatics analyses including GO, KEGG, and PPI were performed. The results revealed that catechol, L-proline, γ-aminobutyric acid, hippuric acid, creatinine, and betaine were detected in BBM and DBM as the major metabolites. One hundred thirteen proteins, mainly within the molecular weight range of 20–80 kDa, were identified, and the differential protein numbers of BBM were higher than those of DBM. These proteins were primarily involved in cholesterol metabolism, Staphylococcus aureus and Salmonella infections, the peroxisome proliferator-activated receptor signaling pathway, and coagulation cascades. Relative abundances of α-s1-casein, α-s2-casein, and β-casein were plentiful in BBM, while κ-casein, albumin, and α-lactalbumin were in DBM. PPI network analysis indicated that the identified proteins were highly interconnected. These findings promote a better understanding of quality biomarkers in dairy product improvements.
Molecular Dynamics Simulation of Semiflexible Polyampholyte Brushes - The Effect of Charged Monomers Sequence
Creators: name: Baratlo, M.
name: Fazli, H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Planar brushes formed by end-grafted semiflexible polyampholyte chains, each chain containing equal number of positively and negatively charged monomers is studied using molecular dynamics simulations. Keeping the length of the chains fixed, dependence of the average brush thickness and equilibrium statistics of the brush conformations on the grafting density and the salt concentration are obtained with various sequences of charged monomers. When similarly charged monomers of the chains are arranged in longer blocks, the average brush thickness is smaller and dependence of brush properties on the grafting density and the salt concentration is stronger. With such long blocks of similarly charged monomers, the anchored chains bond to each other in the vicinity of the grafting surface at low grafting densities and buckle toward the grafting surface at high grafting densities.
description: 8 pages,7 figures
Heavy-quark energy loss and thermalization in a strongly coupled SYM plasma
Creators: name: Beuf, Guillaume
name: Marquet, Cyrille
name: Xiao, Bo-Wen
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the AdS/CFT correspondence, we compute the radiative energy loss of a slowly decelerating heavy quark with mass M moving through a supersymmetric Yang Mills (SYM) plasma at temperature T at large t'Hooft coupling λ. The calculation is carried out in terms of perturbation in \sqrtλT/M, and the rate of the energy loss is computed up to second order. We explain the physical meaning of each correction and estimate the thermalization time of a heavy quark moving in a strongly-coupled plasma.
description: 14 pages, 1 figure
Using music to regulate emotions in daily life
Creators: name: Thorne, Tyler
name: Milyavskaya, Marina
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Emotion regulation
subject: Experience sampling
subject: Music

description: The primary aim of this paper is to better understand the use of music in regulating emotions in daily life – its frequency, when it is used, and its effectiveness. A secondary aim is to address a prior debate about whether using music is best considered as a strategy or a tactic.
Stringent Limits on the Polarized Submillimeter Emission from Protoplanetary Disks
Creators: name: Hughes, A. Meredith
name: Wilner, David J.
name: Cho, Jungyeon
name: Marrone, Daniel P.
name: Lazarian, Alexandre
name: Andrews, Sean M.
name: Rao, Ramprasad
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present arcsecond-resolution Submillimeter Array (SMA) polarimetric observations of the 880 um continuum emission from the protoplanetary disks around two nearby stars, HD 163296 and TW Hydrae. Although previous observations and theoretical work have suggested that a 2-3% polarization fraction should be common for the millimeter continuum emission from such disks, we detect no polarized continuum emission above a 3-sigma upper limit of 7 mJy in each arcsecond-scale beam, or <1% in integrated continuum emission. We compare the SMA upper limits with the predictions from the exploratory Cho & Lazarian (2007) model of polarized emission from T Tauri disks threaded by toroidal magnetic fields, and rule out their fiducial model at the ~10-sigma level. We explore some potential causes for this discrepancy, focusing on model parameters that describe the shape, magnetic field alignment, and size distribution of grains in the disk. We also investigate related effects like the magnetic field strength and geometry, scattering off of large grains, and the efficiency of grain alignment, including recent advances in grain alignment theory, which are not considered in the fiducial model. We discuss the impact each parameter would have on the data and determine that the suppression of polarized emission plausibly arises from rounding of large grains, reduced efficiency of grain alignment with the magnetic field, and/or some degree of magnetic field tangling (perhaps due to turbulence). A poloidal magnetic field geometry could also reduce the polarization signal, particularly for a face-on viewing geometry like the TW Hya disk. The data provided here offer the most stringent limits to date on the polarized millimeter-wavelength emission from disks around young stars.
description: 15 pages, 6 figures, accepted for publication in ApJ
3-pt Statistics of Cosmological Stochastic Gravitational Waves
Creators: name: Adshead, Peter
name: Lim, Eugene A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the 3-pt function (i.e. the bispectrum or non-Gaussianity) for stochastic backgrounds of gravitational waves. We estimate the amplitude of this signal for the primordial inflationary background, gravitational waves generated during preheating, and for gravitational waves produced by self-ordering scalar fields following a global phase transition. To assess detectability, we describe how to extract the 3-pt signal from an idealized interferometric experiment and compute the signal to noise ratio as a function of integration time. The 3-pt signal for the stochastic gravitational wave background generated by inflation is unsurprisingly tiny. For gravitational radiation generated by purely causal, classical mechanisms we find that, no matter how non-linear the process is, the 3-pt correlations produced vanish in direct detection experiments. On the other hand, we show that in scenarios where the B-mode of the CMB is sourced by gravitational waves generated by a global phase transition, a strong 3-pt signal among the polarization modes could also be produced. This may provide another method of distinguishing inflationary B-modes. To carry out this computation, we have developed a diagrammatic approach to the calculation of stochastic gravitational waves sourced by scalar fluids, which has applications beyond the present scenario.
description: 16 pages, 5 figures
Botrytis cinerea induced phytonutrient degradation of strawberry puree: effects of combined preservation approaches with high hydrostatic pressure and synthetic or natural antifungal additives
Creators: name: Echenique-Martínez, Ariel Arami
name: Ramos-Parra, Perla Azucena
name: Rodríguez-Sánchez, Dariana Graciela
name: Troncoso-Rojas, Rosalba
name: Islas-Rubio, Alma Rosa
name: del Carmen Montoya-Ballesteros, Luz
name: Hernández-Brenes, Carmen
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Fungi can thrive in strawberries, mainly Botrytis cinerea, which causes relevant fruit losses. Moreover, thermal preservation results in phytonutrient losses. This study evaluated the effects of high hydrostatic pressure (HHP, 0, 400, and 600 MPa/5 min) processing with potassium sorbate (PS) or avocado seed acetogenins (ASA) on the nutritional, microbiological, and physicochemical properties of strawberry puree inoculated with Botrytis cinerea. Sole inoculation reduced L-ascorbic acid (L-AA, 84%) and total ascorbic acid (TAA, 38%). Instrumental color Hue angles were reduced from 35.0 to 29.4°, likewise the contents of pelargonidin−3-glucoside (25%) and ellagic acid (38%). Both HHP-PS treated samples contained no viable conidia and high TAA; the no-preservative and HHP-ASA (661 µg/mL, 400 MPa/5 min) purees contained high TAA but had viable conidia, which can induce further phytonutrient losses. HHP and antifungal additives maintained ellagic acid, increased pelargonidin−3-glucoside contents, and inactivated conidia, strengthening the value of combined non-thermal technologies for the preservation of strawberry puree
New classes of Neutrosophic Linear Algebras
Creators: name: Kandasamy, W. B. Vasantha
name: Smarandache, Florentin
name: Ilanthenral, K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 15-XX

description: This book is organized into seven chapters. Chapter one is introductory in content. The notion of neutrosophic set linear algebras and neutrosophic neutrosophic set linear algebras are introduced and their properties analysed in chapter two. Chapter three introduces the notion of neutrosophic semigroup linear algebras and neutrosophic group linear algebras. A study of their substructures are systematically carried out in this chapter. The fuzzy analogue of neutrosophic group linear algebras, neutrosophic semigroup linear algebras and neutrosophic set linear algebras are introduced in chapter four of this book. Chapter five introduces the concept of neutrosophic group bivector spaces, neutrosophic bigroup linear algebras, neutrosophic semigroup (bisemigroup) linear algebras and neutrosophic biset bivector spaces. The fuzzy analogue of these concepts are given in chapter six. An interesting feature of this book is it contains nearly 424 examples of these new notions. The final chapter suggests over 160 problems which is another interesting feature of this book.
description: 286 pages
Dihedral manifold approximate fibrations over the circle
Creators: name: Hughes, Bruce
name: Khan, Qayum
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57N15, 57S30

description: Consider the cyclic group C_2 of order two acting by complex-conjugation on the unit circle S^1. The main result is that a finitely dominated manifold W of dimension > 4 admits a cocompact, free, discontinuous action by the infinite dihedral group D_\infty if and only if W is the infinite cyclic cover of a free C_2-manifold M such that M admits a C_2-equivariant manifold approximate fibration to S^1. The novelty in this setting is the existence of codimension-one, invariant submanifolds of M and W. Along the way, we develop an equivariant sucking principle for certain orthogonal actions of finite groups on Euclidean space.
description: 39 pages
Optimization of extraction conditions for functional compounds from thinned unripe apple using β-cyclodextrin-based ultrasound-assisted extraction
Creators: name: Lee, Eun Ji
name: Yoon, Kyung Young
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: Unripe apples contain more functional compounds than ripe apples and thus demonstrate significant potential for use as functional food materials. In this study, the conditions for the extraction of functional compounds from unripe apples were optimized using the response surface methodology. A Box–Behnken design was used to investigate the effects of three independent variables (β-cyclodextrin concentration, extraction time, and extraction temperature) on the total polyphenol content (TPC), chlorogenic acid content (CAC), and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity (RSA). The corresponding optimal extraction conditions were found to be 40 mg/mL, 53.03 min, and 60°C for TPC; 40 mg/mL, 46.67 min, and 60°C for CAC; and 20 mg/mL, 30 min, and 40°C for DPPH RSA. The experimental values obtained under these conditions were consistent with the predicted values, indicating that the model was suitable for optimizing the extraction of functional compounds from unripe apples.
Search and Society: Reimagining Information Access for Radical Futures
Creators: name: Mitra, Bhaskar
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Information retrieval (IR) research must understand and contend with the social implications of the technology it produces. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as human-computer interaction, information sciences, media studies, design, science and technology studies, social sciences, humanities, democratic theory, and critical theory, as well as legal and policy experts, civil rights and social justice activists, and artists, among others. In this perspective paper, we motivate why the community must consider this radical shift in how we do research and what we work on, and sketch a path forward towards this transformation.
Principal analytic link theory in homology sphere links
Creators: name: Nemethi, A.
name: Neumann, Walter D
name: Pichon, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 32S50, 14B05, 57M25

description: For the link $M$ of a normal complex surface singularity $(X,0)$ we ask when a knot $K\subset M$ exists for which the answer to whether $K$ is the link of the zero set of some analytic germ $(X,0)\to (\mathbb C,0)$ affects the analytic structure on $(X,0)$. We show that if $M$ is an integral homology sphere then such a knot exists if and only if $M$ is not one of the Brieskorn homology spheres $M(2,3,5)$, $M(2,3,7)$, $M(2,3,11)$.
Exploring situated learning in live streams hosted by expert-level gamers
Creators: name: Christy, A. H.
Publisher: name: University of British Columbia
Year: 2024

description: Social gameplay environments are fruitful grounds for studying situated learning, within and beyond gaming environments. Further, live streams of gameplay, including popular broadcasts hosted by expert-level gamers (e.g., players with professional gaming experience), on platforms such as Twitch, regularly draw vast audiences rivalling those of established media houses. Scholarship suggests that expert-level gamers can play an important role in advancing knowledge within learning communities. Additional research illustrates the rich potential for live streaming to facilitate learning; however, despite such scholarship and the prominence of live streaming, little is understood about the role that expert-level gamers play in fostering opportunities for learning in live streamed settings. Through an analytical framework drawn from affordance theory and situated learning theory, this exploratory study investigated the following research questions: In what ways do Twitch streamers with professional gaming experience foster opportunities for learning in their streams? What are some of the social characteristics of the stream environments that may serve to promote such opportunities for learning? How do streamers contribute to shaping these characteristics? Ethnographic Content Analysis was used to analyze 14 hours of data from two Twitch channels hosted by expert-level gamers. The study found that streamers fostered opportunities for learning in their channels through their in-stream actions and via 10 distinct forms of commentary. Opportunities for learning also arose through social interaction in the streams involving a process of enculturation into the stream community. Further, social characteristics of the channels with potential to promote learning included mutually assistive behaviour, a strong sense of community, in-stream conventions, and gaming conventions; streamers instantiated these characteristics in their channels and upheld them with support from the stream community. Finally, the study identified forms of apprenticeship, cognitive apprenticeship, and legitimate peripheral participation in the channels, documenting these in the novel context of live gameplay streams. The study shines a light on the educative potential of live gameplay streams hosted by expert-level gamers, and opens new questions around how such streams might be leveraged to enrich contemporary learning.
Effects of different extraction methods on the physicochemical properties and biological activities of polysaccharides from maca roots
Creators: name: Kim, Eun Jeong
name: Yoon, Kyung Young
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Maca is rich in bioactive compounds and has considerable potential for commercial application as a functional food material. In this study, maca root polysaccharides (MRPs) were prepared via hot water extraction, enzyme-assisted extraction, ultrasound-assisted extraction (UAE), and deep eutectic solvent (DES)-based UAE, and their physicochemical properties and biological activities were compared. The MRP obtained using DES-based UAE (MRP-DU) exhibited the highest yield (30.85%), oil-holding capacity (5.21 g/g), emulsifying capacity (50.58%), and emulsion stability (48.14%). Additionally, MRP-DU exhibited the highest antidiabetic and absorption-retarding effects on glucose and bile acid. These results suggest that MRP obtained using DES-based UAE have high application potential as functional food materials and could also serve as antidiabetic and cholesterol-lowering agents.
Neural post-Einsteinian framework for efficient theory-agnostic tests of general relativity with gravitational waves
Creators: name: Xie, Yiqi
name: Chatterjee, Deep
name: Narayan, Gautham
name: Yunes, Nicolás
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The parametrized post-Einsteinian (ppE) framework and its variants are widely used to probe gravity through gravitational-wave tests that apply to a large class of theories beyond general relativity. However, the ppE framework is not truly theory-agnostic as it only captures certain types of deviations from general relativity: those that admit a post-Newtonian series representation in the inspiral of coalescing compact objects. Moreover, each type of deviation in the ppE framework has to be tested separately, making the whole process computationally inefficient and expensive, possibly obscuring the theoretical interpretation of potential deviations that could be detected in the future. We here present the neural post-Einsteinian (npE) framework, an extension of the ppE formalism that overcomes the above weaknesses using deep-learning neural networks. The core of the npE framework is a variational autoencoder that maps the discrete ppE theories into a continuous latent space in a well-organized manner. This design enables the npE framework to test many theories simultaneously and to select the theory that best describes the observation in a single parameter estimation run. The smooth extension of the ppE parametrization also allows for more general types of deviations to be searched for with the npE model. We showcase the application of the new npE framework to future tests of general relativity with the fifth observing run of the LIGO-Virgo-KAGRA collaboration. In particular, the npE framework is demonstrated to efficiently explore modifications to general relativity beyond what can be mapped by the ppE framework, including modifications coming from higher-order curvature corrections to the Einstein-Hilbert action at high post-Newtonian order, and dark-photon interactions in possibly hidden sectors of matter that do not admit a post-Newtonian representation.
description: 30 pages, 15 figures, text and references updated, v2 matches version published in PRD
Additional file 1 of Association between Osteoprotegerin rs2073618 polymorphism and peri-implantitis susceptibility: a meta-analysis
Creators: name: Xu, Min
name: Zhang, Churen
name: Han, Ye
name: Yue, Zhaoguo
name: Shu, Chang
name: Hou, Jianxia
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1. Table S1: Quality assessment and risk of bias of the included studies by NOS.
Decomposition, Reformulation, and Diving in University Course Timetabling
Creators: name: Burke, Edmund K.
name: Marecek, Jakub
name: Parkes, Andrew J.
name: Rudova, Hana
Publisher: name: arXiv
Year: 2009
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: G.2.3; I.2.8; F.2.2

description: In many real-life optimisation problems, there are multiple interacting components in a solution. For example, different components might specify assignments to different kinds of resource. Often, each component is associated with different sets of soft constraints, and so with different measures of soft constraint violation. The goal is then to minimise a linear combination of such measures. This paper studies an approach to such problems, which can be thought of as multiphase exploitation of multiple objective-/value-restricted submodels. In this approach, only one computationally difficult component of a problem and the associated subset of objectives is considered at first. This produces partial solutions, which define interesting neighbourhoods in the search space of the complete problem. Often, it is possible to pick the initial component so that variable aggregation can be performed at the first stage, and the neighbourhoods to be explored next are guaranteed to contain feasible solutions. Using integer programming, it is then easy to implement heuristics producing solutions with bounds on their quality. Our study is performed on a university course timetabling problem used in the 2007 International Timetabling Competition, also known as the Udine Course Timetabling Problem. In the proposed heuristic, an objective-restricted neighbourhood generator produces assignments of periods to events, with decreasing numbers of violations of two period-related soft constraints. Those are relaxed into assignments of events to days, which define neighbourhoods that are easier to search with respect to all four soft constraints. Integer programming formulations for all subproblems are given and evaluated using ILOG CPLEX 11. The wider applicability of this approach is analysed and discussed.
description: 45 pages, 7 figures. Improved typesetting of figures and tables
Long-term optical observations of Be/X-Ray binary system V0332+53
Creators: name: Kiziloglu, U.
name: Kiziloglu, N.
name: Baykal, A.
name: Yerli, S. K.
name: Ozbey, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have been monitoring the binary system V0332+53 (optical counterpart is BQ Cam) since 2004 using 45 cm ROTSEIIId telescope and RTT150 (Russian-Turkish 1.5 m Telescope) located at Bakirlitepe, Antalya, Turkey. We report on the long-term variability of this system up to the present date. There exists a fading of 0.2 mag in the light of BQ Cam after MJD 53400. The fading in the light curve of BQ Cam could be due to a decrease in the density or in the size of the circumstellar disk. We present optical spectroscopic observations obtained before (at MJD 54730) and during (at MJD 54768) the new X-ray activity reported by Krimm et al. (2008). The observed Ha line profiles were single-peaked and almost symmetric. The present EW values are found to be similar to the ones observed during the fading of infrared magnitudes of Negueruela et al. (1999). Ha emission lines were found to be red-shifted by ~140 km/s which were larger than the findings of Corbet et al. (1986). We suggest that brightening of the disk after MJD 54700 may be due to the precession of the disk.
description: 4 pages, 2 figures
Effects of Cognitive-Behavioral Therapy on Mental Health of High-School Students during COVID-19 Pandemic
Creators: name: Dana, Amir
name: Ranjbari, Sheida
name: Salehian, Mir Hamid
name: Shayan Matin, Parastoo
Publisher: name: figshare
Year: 2021
Subjects: subject: 170114 Sport and Exercise Psychology
subject: FOS: Psychology

description: New mutations of COVID-19 and a lack of adequate vaccination necessitate finding certain methods to enhance mental health of adolescents during the pandemic. The present study aimed to investigate the effects of Cognitive-Behavioral Therapy on mental health of adolescents during COVID-19 pandemic.
Methods:
The present research applied an experimental design with pretest and posttest in 2020. The subjects herein included 65 high-school students, randomly divided into the intervention and control groups. The intervention group received three months of intervention based on Cognitive-Behavioral Therapy while the control group performed regular daily activities. Depression, anxiety, and stress were measured using standard questionnaires before and after the intervention as well as three months later. Independent t test and ANCOVA were utilized for data analysis.
Results:
At the baseline, 58 students (89.2%) had moderate depression, 37 students (56.9%) had severe anxiety, and 45 students (69.2%) had moderate stress. No significant differences were observed between the groups at the baseline (all P>0.05). Following the intervention, 53 students (81.6%) had moderate depression, 37 students (56.9%) had moderate anxiety, and 31 students (47.7%) had moderate stress. These results remained almost the same in the follow-up test. Moreover, Cognitive-Behavioral Therapy significantly reduced depression (p <0.001), anxiety (p <0.001), and stress (p <0.001) in the posttest and follow-up compared with those in the control group.
Conclusion:
These results highlighted the importance of developing strategies such as …
Complex generalized Gauss-Radau quadrature rules for Hankel transforms of integer order
Creators: name: Wang, Haiyong
name: Wu, Menghan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 65R10, 65D32

description: Complex Gaussian quadrature rules for oscillatory integral transforms have the advantage that they can achieve optimal asymptotic order. However, their existence for Hankel transform can only be guaranteed when the order of the transform belongs to $[0,1/2]$. In this paper we consider the construction of generalized Gauss-Radau quadrature rules for Hankel transform. We show that, if adding certain value and derivative information at the left endpoint, then complex generalized Gauss-Radau quadrature rules for Hankel transform of integer order can be constructed with theoretical guarantees. Orthogonal polynomials that are closely related to such quadrature rules are investigated and their existence for even degrees is proved. Numerical experiments are presented to confirm our findings.
description: IMA J. Numer. Anal., to appear, 2025
SDSS J092609.45+334304.1: a nearby unevolved galaxy
Creators: name: Pustilnik, S. A.
name: Tepliakova, A. L.
name: Kniazev, A. Y.
name: Martin, J. -M.
name: Burenkov, A. N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of observations of the very low surface brightness (VLSB) dwarf galaxy SDSS J092609.45+334304.1 with extreme parameters which indicate its unevolved status. Namely, its value of O/H, derived as an average of that in two adjacent HII regions at the NE edge of the disc, corresponds to the parameter 12+log(O/H)=7.12+-0.02, which is amongst two lowest known. The total HI flux measurement obtained with the Nancay Radio Telescope and the photometric results imply that the galaxy ratio M(HI)/L_B ~3.0, is among the top known in the Local Volume. The galaxy is situated in the region of a nearby underdense region known as the Lynx-Cancer void, where other, unevolved galaxies, including DDO 68, HS 0832+3542 and SAO 0822+3545, are known to be present. The total mass of this almost edge-on VLSB galaxy is ~8.3 times larger than its baryonic mass, implying the dynamical dominance of Dark Matter (DM) halo. The (u-g), (g-r) colours of outer parts of this galaxy are consistent with the ages of its main stellar population of 1--3 Gyr. Thanks to the galaxy isolation, the small effect of current or recent star formation (SF), its proximity and rather large HI flux (~2.5 Jy km/s), this VLSB dwarf is a good laboratory for the detailed study of DM halo properties through HI kinematics and the star formation processes in very metal-poor low surface density environment. This finding, along with the discovery of other unusual dwarf galaxies in this void, provides evidence for the relation between galaxy evolution and its very low-density environment for the baryonic mass range of 10^{8} to 10^{9} Mo. This relation seems to be consistent with that expected in the LambdaCDM models of galaxy and structure formation.
description: 10 pages, 5 figures, 6 tables, accepted to MNRAS
Comment Assister Une Personne Afin Qu'elle Ne Consomme Pas Seule
Creators: name: Touesnard, Natasha
name: Bonn, Matthew
name: Dr. Carol Strike PhD
name: MPH, Melissa Perris
name: Dr. Gillian Kolla
name: Kaminski, Natalie
name: Gagnon, Marilou
name: Guta, Adrian
name: RN, Corey Ranger
name: MHSc, Laurel Challacombe
name: Bayoumi, Ahmed
Publisher: name: Zenodo
Year: 2021

description: C'est le lancement d'une animation pédagogique sur le spotting - méthode de prévention des overdoses réalisée par téléphone ou visioconférence. Cette nouvelle ressource de CAPUD est disponible dans les deux langues officielles et fournit un guide étape par étape sur le repérage. © 2021 CAPUD. Tous les droits sont réservés.
Self-organizing urban transportation systems
Creators: name: Gershenson, Carlos
Publisher: name: arXiv
Year: 2009
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Multiagent Systems (cs.MA)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Urban transportation is a complex phenomenon. Since many agents are constantly interacting in parallel, it is difficult to predict the future state of a transportation system. Because of this, optimization techniques tend to give obsolete solutions, as the problem changes before it can be optimized. An alternative lies in seeking adaptive solutions. This adaptation can be achieved with self-organization. In a self-organizing transportation system, the elements of the system follow local rules to achieve a global solution. Like this, when the problem changes the system can adapt by itself to the new configuration. In this chapter, I will review recent, current, and future work on self-organizing transportation systems. Self-organizing traffic lights have proven to improve traffic flow considerably over traditional methods. In public transportation systems, simple rules are being explored to prevent the "equal headway instability" phenomenon. The methods we have used can be also applied to other urban transportation systems and their generality is discussed.
description: Final version to be published in "Complexity theories of cities have come of age", edited by Juval Portugali and Han Meyer, Springer, 2010
A Note on de Sitter Embedding of $f(R)$ Theories
Creators: name: Quiros, Israel
name: Leyva, Yoelsy
name: Napoles, Yunelsy
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The consequences of the constraints which de Sitter embedding of $f(R)$ theories imposes on the Lagrangian's parameters, are investigated within the metric formalism. It is shown, in particular, that several common $f(R)$ Lagrangians do not actually admit such an embedding. Otherwise, asymptotic matching of local solutions of the corresponding models with background (maximally symmetric) spaces of constant curvature is either unstable or, anti-de Sitter embedding is the only stable embedding. Additional arguments are given in favour of a previous claim that a class of $f(R)$ models comprising both positive and negative powers of $R$ (two different mass scales), could be a nice scenario where to address, in a united picture, both early-time inflation and late-time accelerated expansion of the universe. The approach undertaken here is used, also, to check ghost-freedom of a Dirac-Born-Infeld modification of general relativity previously studied in the bibliography.
description: 8 pages, Several references added
Influences of tissue location and pathogen behaviour on CD8 T cell responses to intestinal viral infections
Creators: name: Hardman, Blair
Publisher: name: University of British Columbia
Year: 2024

description: The combination of diverse metabolism, large microbial community, and vast surface area make the intestines a complex immunological challenge. Mucosal immune responses must target infections while limiting disruptions to intestinal function or off-target reactions in the antigen-rich environment. Regulation of this balance, which is shaped locally by tissue-specific cues, and distally in secondary lymphoid organs, is not fully understood. Exploring these concepts promises insights into vaccine development and treatment of inflammatory digestive diseases. Intestinal epithelial cells (IECs) not only maintain a barrier between the external environment and host tissues, they are also active participants in local immune homeostasis. Based on prior observations that IEC-intrinsic canonical and non-canonical NF-κB activation via the kinases IKKβ and IKKα shape the inflammatory tone of immune responses to helminth and bacterial infections, I hypothesized that IEC-intrinsic NF-κB signalling may be a conserved mediator of inflammation elicited by enteric infections. However, in the context of acute or persistent intestinal murine norovirus (MNV strain CW3 or CR6) infection, there was no detectable effect on viral loads or antiviral CD8⁺ effector T cells in the absence of either IKKα or IKKβ in IECs. To assess how antiviral CD8⁺ T cell distribution along the length of the gastrointestinal (GI) tract is regulated, I used tissue microscopy and flow cytometry following infection with MNV CW3 and CR6. I found that the initial intestinal site of infection dictates which node of the mesenteric lymph node (MLN) complex hosts the earliest CD8⁺ T cell responses. However, later stages of T cell expansion and localization within the GI tract are driven by virus-specific behavior. My results suggest that in the absence of systemic infection, antiviral effector cells primed in the spleen are not equipped for intestinal access. Understanding how intestinal access is granted will be valuable in designing oral vaccines while methods of enforcing intestinal immune seclusion may provide a means of preventing or limiting flareups in people with inflammatory digestive diseases. This work outlines avenues of inquiry using MNV strains in a comparative model to contrast CD8⁺ T cell responses and delineate cues which influence the distribution and scale of immune responses.
On stability of odd-frequency superconducting state
Creators: name: Solenov, Dmitry
name: Martin, Ivar
name: Mozyrsky, Dmitry
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Odd-frequency pairing mechanism of superconductivity has been investigated for several decades. Nevertheless, its properties, including the thermodynamic stability, have remained unclear. In particular, it has been argued that the odd-frequency state is thermodynamically unstable, has an unphysical (anti-) Meissner effect, and thus can not exist as a homogeneous equilibrium phase. We argue that this conclusion is incorrect because it implicitly relies on the inappropriate assumption that the odd-frequency superconductor can be described by an effective Hamiltonian that breaks the particle conservation symmetry. We demonstrate that the odd-frequency state can be properly described within the functional integral approach using non-local-in-time effective action. Within the saddle point approximation, we find that this phase is thermodynamically stable, exhibits ordinary Meissner effect, and therefore can be realized as an equilibrium homogenous state of matter.
description: 4 pages, no figures
Acten-Buch der Vereinigten Music-Gesellschaft der Mehrern Stadt
Creators: name: Musikgesellschaft der Mehreren Stadt
Publisher: name: [s.n.]
Year: 1772

description: Protokollbuch der Musikgesellschaft der mehreren Stadt aus den Jahren 1772 bis 1812. Inhalt: Titel (1 S.); Mitgliederverzeichnis 1757-1812 mit Angabe des Eintrittsjahres, teilweise Angabe der Vorstandsfunktion, teilweise Angabe des Berufsstandes, teilweise Angabe des Austrittsjahres (9 S.); Satzung (Statuten) 1772 (11 S.); Protokolle Sept. 1772 - Okt. 1777 (28 S., Beschreibung s. u.); Satzung (Statuten) 1777 (6 S.); Protokolle Dez. 1777 - Juli 1812 (220 S., alle Jahre vorhanden, mehrere Protokolle jährlich [mindestens vier pro Jahr], regelmässiger Inhalt der Protokolle u. a.: Aufnahme von neuen Mitgliedern, Wahlen von Vorstandsmitgliedern, Besoldung von Mitgliedern im Frühling [meist März] jeweils Angabe des Schlusssaldos von Ausgaben und Einnahmen, teilweise Quartalssaldo von Ausgaben und Einnahmen, ab 1800 regelmässige Protokolle der Konzertkommission, sonstiges: Abschriften von Dankschreiben, teilweise Berichte von Konzerten vorhanden). 1812 Abbruch des Protokollbuches infolge Fusion mit der Musikgesellschaft auf dem Musiksaal zur Allgemeinen Musikgesellschaft Zürich. (Quelle: Datenbank MIZ "Musik in Zürich")
Calculating the energy spectra of magnetic molecules: application of real- and spin-space symmetries
Creators: name: Schnalle, R.
name: Schnack, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The determination of the energy spectra of small spin systems as for instance given by magnetic molecules is a demanding numerical problem. In this work we review numerical approaches to diagonalize the Heisenberg Hamiltonian that employ symmetries; in particular we focus on the spin-rotational symmetry SU(2) in combination with point-group symmetries. With these methods one is able to block-diagonalize the Hamiltonian and thus to treat spin systems of unprecedented size. In addition it provides a spectroscopic labeling by irreducible representations that is helpful when interpreting transitions induced by Electron Paramagnetic Resonance (EPR), Nuclear Magnetic Resonance (NMR) or Inelastic Neutron Scattering (INS). It is our aim to provide the reader with detailed knowledge on how to set up such a diagonalization scheme.
description: 29 pages, many figures
Additional file 1 of P2RX7 promotes osteosarcoma progression and glucose metabolism by enhancing c-Myc stabilization
Creators: name: Sheng, Gaohong
name: Gao, Yuan
name: Ding, Qing
name: Zhang, Ruizhuo
name: Wang, Tianqi
name: Jing, Shaoze
name: Zhao, Hongqi
name: Ma, Tian
name: Wu, Hua
name: Yang, Yong
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Computational Biology

description: Additional file 1: Table S1. The sequences of primers used in this study.
Heavy Quarks in the Quark-Gluon Plasma
Creators: name: Rapp, Ralf
name: van Hees, Hendrik
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Heavy-flavor particles are believed to provide valuable probes of the medium produced in ultrarelativistic collisions of heavy nuclei. In this article we review recent progress in our understanding of the interactions of charm and bottom quarks in the Quark-Gluon Plasma (QGP). For individual heavy quarks, we focus on elastic interactions for which the large quark mass enables a Brownian motion treatment. This opens a unique access to thermalization mechanisms for heavy quarks at low momentum, and thus to their transport coefficients in the quark-gluon fluid. Different approaches to evaluate heavy-quark diffusion are discussed and compared, including perturbative QCD, effective potential models utilizing input from lattice QCD and string-theoretic estimates in conformal field theories. Applications to heavy-quark observables in heavy-ion collisions are realized via relativistic Langevin simulations, where we illustrate the important role of a realistic medium evolution to quantitatively extract the heavy-quark diffusion constant. In the heavy quarkonium sector, we briefly review the current status in potential-model based interpretations of correlation functions computed in lattice QCD, followed by an evaluation of quarkonium dissociation reactions in the QGP. The discussion of the phenomenology in heavy-ion reactions focuses on thermal model frameworks paralleling the open heavy-flavor sector. We also emphasize connections to the heavy-quark diffusion problem in both potential models and quarkonium regeneration processes.
description: 94 pages, 41 figures, 2 tables; invited review for chapter in "Quark-Gluon Plasma 4"; comments welcome; v2: additional references, streamlined text
Tuning linear and nonlinear optical properties of wurtzite GaN by c-axial stress
Creators: name: Cai, Duanjun
name: Guo, Guang-Yu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the linear and nonlinear optical properties of wurtzite GaN under c-axial stress field, using density functional theory calculations. The fully structural optimization at each c-axial strain was performed. The calculated dielectric functions show that tensile c-axial strain effectively improves the linear optical efficiency, especially for the band-edge transitions, and significantly increase the mobility of electrons in the conduction band. Second-order nonlinear optical susceptibilities show that the tensile c-axial strain will enhance the zero- and low-frequency nonlinear responses of GaN. The enhancement of the nonlinear optical property is explained by the reduction of the polarization of wurtzite GaN under tensile c-axial strains. Based on these findings, we propose a method for improving the electrical and optical properties of the crystal through imposing appropriate stress on the high symmetry crystalline directions.