cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Overdensity of SubMillimiter Galaxies in the GJ526 Field mapped with the NIKA2 Camera
Creators: name: Lestrade, J. -F.
name: Adam, R.
name: Ade, P.
name: Ajeddig, H.
name: Andre, P.
name: Artis, E.
name: Aussel, H.
name: Beelen, A.
name: Benoit, A.
name: Berta, S.
name: Bing, L.
name: Bourrion, O.
name: Calvo, M.
name: Catalano, A.
name: Coulais, A.
name: De Petris, M.
name: Desert, F. -X.
name: Doyle, S.
name: Driessen, E. F. C.
name: Gomez, A.
name: Goupy, J.
name: Keruzore, F.
name: Kramer, C.
name: Ladjelate, B.
name: Lagache, G.
name: Leclercq, S.
name: Macias-Perez, J. - F.
name: Maury, A.
name: Mauskopf, P.
name: Mayet, F.
name: Monfardini, A.
name: Munoz-Echeverria, M.
name: Perotto, L.
name: Pisano, G.
name: Ponthieu, N.
name: Reveret, V.
name: Rigby, A. J.
name: Ritacco, A.
name: Romero, C.
name: Roussel, H.
name: Ruppin, F.
name: Schuster, K.
name: Shu, S.
name: Sievers, A.
name: Tucker, C.
name: Zylka, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using the NIKA2 dual band millimeter camera installed on the IRAM30m telescope, we have mapped a relatively large field (~70 arcmin^2) in the direction of the star GJ526 to investigate the nature of the sources found with the MAMBO camera at 1.2 mm ten years earlier. We have found that they must be dust-obscured galaxies (SMGs) in the background beyond the star. The new NIKA2 map at 1.15 mm reveals additional sources and, in fact, an overdensity of SMGs predominantly distributed along a filament-like structure in projection on the sky across the whole observed field. We speculate this might be a cosmic filament at high redshift as revealed in cosmological hydrodynamical simulations. Measurement of spectroscopic redshifts of the SMGs in the candidate filament is required now for a definitive confirmation of the nature of the structure.
description: To appear in the Proceedings of the International Conference entitled mm Universe @ NIKA2, Rome (Italy), June 2021, EPJ Web of conferences
Towards an Ontology for European Poetry
Creators: name: Díez, M Luisa
name: Bermúdez, Helena
name: Ros, Salvador
name: González-Blanco, Elena
name: De la Rosa, Javier
name: Pérez, Alvaro
name: Ayciriex, Luciana
name: Sartini, bruno
Publisher: name: Zenodo
Year: 2019
Subjects: Ontology Network
European Poetry

description: In this paper, we present the case of an ontology for the domain of European poetry. Given the fragmentary access to poetic resources (see González-Blanco & Selaf, 2014), an ontology, and more specifically an ontology network about European Poetry (EP), proposes a coherent and unambiguous semantic conceptualization of the domain. A shared conceptualization enables the integration of disparate poetic data sources belonging to different poetic traditions, overcoming well-known handicaps and idiosyncratic differences, such as the distinct organization of scholarship, or the heterogeneous bibliography.
ASSESSMENT OF MOTOR SKILL DEVELOPMENT THROUGH SPECIALIZED PLAYGROUND EQUIPMENT FOR YOUNG CHILDREN.
Creators: name: To'lqinov, Muxammad
name: Djurayev, Sherzod
name: Xaydarov, Xasanboy
Publisher: name: Zenodo
Year: 2023

description: This article focuses on the assessment of motor skill development in young children through the use of specialized playground equipment. It examines how various playground structures can be utilized to enhance different aspects of motor skills, including coordination, balance, and strength. The effectiveness of these playground designs in facilitating motor development in young children is explored, along with methods for assessing their impact. The article aims to provide insights into how playgrounds can be strategically designed to promote physical development in early childhood.
Off-line radiometric analysis of Planck/LFI data
Creators: name: Tomasi, M.
name: Mennella, A.
name: Galeotta, S.
name: Lowe, S. R.
name: Mendes, L.
name: Leonardi, R.
name: Villa, F.
name: Cappellini, B.
name: Gregorio, A.
name: Meinhold, P.
name: Sandri, M.
name: Cuttaia, F.
name: Terenzi, L.
name: Maris, M.
name: Valenziano, L.
name: Salmon, M. J.
name: Bersanelli, M.
name: Binko, P.
name: Butler, R. C.
name: D'Arcangelo, O.
name: Fogliani, S.
name: Frailis, M.
name: Franceschi, E.
name: Gasparo, F.
name: Maggio, G.
name: Maino, D.
name: Malaspina, M.
name: Mandolesi, N.
name: Manzato, P.
name: Meharga, M.
name: Morgante, G.
name: Morisset, N.
name: Pasian, F.
name: Perrotta, F.
name: Rohlfs, R.
name: Turler, M.
name: Zacchei, A.
name: Zonca, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Planck Low Frequency Instrument (LFI) is an array of 22 pseudo-correlation radiometers on-board the Planck satellite to measure temperature and polarization anisotropies in the Cosmic Microwave Background (CMB) in three frequency bands (30, 44 and 70 GHz). To calibrate and verify the performances of the LFI, a software suite named LIFE has been developed. Its aims are to provide a common platform to use for analyzing the results of the tests performed on the single components of the instrument (RCAs, Radiometric Chain Assemblies) and on the integrated Radiometric Array Assembly (RAA). Moreover, its analysis tools are designed to be used during the flight as well to produce periodic reports on the status of the instrument. The LIFE suite has been developed using a multi-layered, cross-platform approach. It implements a number of analysis modules written in RSI IDL, each accessing the data through a portable and heavily optimized library of functions written in C and C++. One of the most important features of LIFE is its ability to run the same data analysis codes both using ground test data and real flight data as input. The LIFE software suite has been successfully used during the RCA/RAA tests and the Planck Integrated System Tests. Moreover, the software has also passed the verification for its in-flight use during the System Operations Verification Tests, held in October 2008.
description: Planck LFI technical papers published by JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/1748-0221
Hedyocoronins A and B: two new oleanane saponins from the aerial parts of Hedyotis coronaria
Creators: name: Pham, Nguyen-Kim-Tuyen
name: Thai, Hoang-Minh
name: Nguyen, Thi-Anh-Tuyet
name: Vo, Thi-Nga
name: Nguyen, Kim-Phi-Phung
name: Nguyen, Thi-Hoai-Thu
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Two new oleanane saponins, hedyocoronin A (1) and hedyocoronin B (2), were isolated from the aerial parts of Hedyotis coronaria (Kurz) Craib, Rubiaceae, collected at Da Oai district, Lam Dong province in Vietnam. Their chemical structures were elucidated by HR-MS, 1D and 2D-NMR spectra, along with the comparison with those reported in the literature. Compounds 1 and 2 showed weak cytotoxicity against KB and HeLa-S3 cancer cell lines with IC50 values of more than 54 µM.
Magnetism and binarity of the Herbig Ae star V380 Ori
Creators: name: Alecian, E.
name: Wade, G. A.
name: Catala, C.
name: Bagnulo, S.
name: Böhm, T.
name: Bouret, J. -C.
name: Donati, J. -F.
name: Folsom, C. P.
name: Grunhut, J.
name: Landstreet, J. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper we report the results of high-resolution circular spectropolarimetric monitoring of the Herbig Ae star V380 Ori, in which we discovered a magnetic field in 2005. A careful study of the intensity spectrum reveals the presence of a cool spectroscopic companion. By modelling the binary spectrum we infer the effective temperature of both stars: $10500\pm 500$ K for the primary, and $5500\pm500$ K for the secondary, and we argue that the high metallicity ($[M/H] = 0.5$), required to fit the lines may imply that the primary is a chemically peculiar star. We observe that the radial velocity of the secondary's lines varies with time, while that of the the primary does not. By fitting these variations we derive the orbital parameters of the system. We find an orbital period of $104\pm5$ d, and a mass ratio ($M_{\rm P}/M_{\rm S}$) larger than 2.9. The intensity spectrum is heavily contaminated with strong, broad and variable emission. A simple analysis of these lines reveals that a disk might surround the binary, and that a wind occurs in the environment of the system. Finally, we performed a magnetic analysis using the Least-Squares Deconvolved (LSD) profiles of the Stokes $V$ spectra of both stars, and adopting the oblique rotator model. From rotational modulation of the primary's Stokes $V$ signatures, we infer its rotation period $P=4.31276\pm0.00042$ d, and find that it hosts a centred dipole magnetic field of polar strength $2.12\pm0.15$ kG, with a magnetic obliquity $β= 66\pm5^{\circ}$, and a rotation axis inclination $i=32\pm5^{\circ}$. However, no magnetic field is detected in the secondary, and if it hosts a dipolar magnetic field, its strength must be below about 500 G, to be consistent with our observations.
description: Accepted for publication in MNRAS, 15 pages, 12 figures
title: Aplicaciones técnicas y Semiología de la Enterografía por RM
Creators: name: Alvarez-Cofiño Tuñón, Almudena
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Abdomen
subject: MR

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
La Enfermedad de Crohn (EC) es un proceso inflamatorio de carácter crónico recurrente que afecta a la pared del tracto gastrointestinal.
Aunque puede cursar con manifestaciones extraintestinales,
su característica principal es la extensión...
Standard versus prosocial online support groups for distressed breast cancer survivors: A randomized controlled trial
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: Adult
Aged
Breast Neoplasms
Female
Humans
Internet
Middle Aged
Reproducibility of Results
Research Design
Self Concept
Self-Help Groups
Social Support
Survivors

description: Background: The Internet can increase access to psychosocial care for breast cancer survivors through online support groups. This study will test a novel prosocial online group that emphasizes both opportunities for getting and giving help. Based on the helper therapy principle, it is hypothesized that the addition of structured helping opportunities and coaching on how to help others online will increase the psychological benefits of a standard online group.Methods/Design: A two-armed randomized controlled trial with pretest and posttest. Non-metastatic breast cancer survivors with elevated psychological distress will be randomized to either a standard facilitated online group or to a prosocial facilitated online group, which combines online exchanges of support with structured helping opportunities (blogging, breast cancer outreach) and coaching on how best to give support to others. Validated and reliable measures will be administered to women approximately one month before and after the interventions. Self-esteem, positive affect, and sense of belonging will be tested as potential mediators of the primary outcomes of depressive/anxious symptoms and sense of purpose in life.Discussion: This study will test an innovative approach to maximizing the psychological benefits of cancer online support groups. The theory-based prosocial online support group intervention model is sustainable, because it can be implemented by private non-profit or other organizations, such as cancer centers, which mostly offer face-to-face support groups with limited patient reach.Trial Registration: ClinicalTrials.gov: NCT01396174. © 2011 Lepore et al; licensee BioMed Central Ltd.
title: Anomalías de los ductos de Müller: Imagen de RM en 3T y ecografía tridimensional utilizando gel endovaginal.
Creators: name: Recio Rodríguez, Manuel
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Ultrasound
subject: MR
subject: Pelvis
subject: Genital / Reproductive system female

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Los objetivosdocentesde este trabajo son: - Mostrar el valor de las imágenes RM en equipos de 3T y de las ecografías tridimensionales en el estudio de las anomalías de los ductos de Müller (ADM) utilizando gel endovaginal. -Revisar el desarrollo...
title: ¿Realmente nos es útil el TC Perfusión craneal en un ictus isquémico?
Creators: name: Vicente Bártulos, Agustina
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Ischaemia / Infarction
subject: Diagnostic procedure
subject: Technical aspects
subject: CT-Quantitative
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Neuroradiology brain
subject: Emergency

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
En los últimos años seha producidouna importante revolución en el tratamiento del ictus y muchos cambios han sido causados ​​por la introducción de nuevastécnicas de diagnóstico,
la prologacion de la ventana terapéutica para la...
Two-loop corrections to the Higgs trilinear coupling in classically scale-invariant theories
Creators: name: Braathen, Johannes
name: Kanemura, Shinya
name: Shimoda, Makoto
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: Higgs particle, mass
electroweak interaction, critical phenomena
buildings
tree approximation
hierarchy
new physics
scaling
unitarity
alignment
structure

description: The European Physical Society Conference on High Energy Physics, EPS-HEP2021, Hamburg, Fed Rep Germany, 26 Jul 2021 - 30 Jul 2021; 6 pp. (2021).
description: The Higgs trilinear coupling is a crucial tool to investigate the structure of the Higgs sector and the nature of the electroweak phase transition, and to search for indirect signs of New Physics. Classical scale invariance (CSI) is an attractive concept for BSM model building, explaining the apparent alignment of the Higgs sector and potentially relating to the hierarchy problem. A particularly interesting feature of CSI theories is that, at one loop, they universally predict the Higgs trilinear coupling to deviate by 67% from the SM prediction at tree level.This result is however modified at two loops, and we present here results from the first explicit computation of two-loop corrections to the Higgs trilinear coupling in classically scale-invariant BSM models. Taking as example a CSI variant of the Two-Higgs-Doublet Model, we show that the inclusion of two-loop effects allows distinguishing different scenarios with CSI, even though the requirement of correctly reproducing the mass of the Higgs boson, as well as unitarity, severely restrict the possible values of the Higgs trilinear coupling.
Do infants fed directly from the breast have improved appetite regulation and slower growth during early childhood compared with infants fed from a bottle?
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: bottle-feeding
direct breastfeeding
satiety
obesity
child eating behaviors

description: Background: Behavioral mechanisms that contribute to the association between breastfeeding and reduced obesity risk are poorly understood. The purpose of this study was to evaluate the hypothesis that feeding human milk from the breast (direct breastfeeding) has a more optimal association with subsequent child appetite regulation behaviors and growth, when compared to bottle-feeding.Methods: Children (n = 109) aged 3- to 6- years were retrospectively classified as directly breastfed (fed exclusively at the breast), bottle-fed human milk, or bottle-fed formula in the first three months of life. Young children's appetite regulation was examined by measuring three constructs (satiety response, food responsiveness, enjoyment of food) associated with obesity risk, using the Child Eating Behavior Questionnaire. Multinomial logistic regression analyses were used to test whether children bottle-fed either human milk or formula had reduced odds of high satiety and increased odds of high food responsiveness and high enjoyment of food compared to children fed directly from the breast. Current child weight status and growth trends from 6-36 months were also examined for their relation to direct breastfeeding and appetite regulation behaviors in early childhood.Results: Children fed human milk in a bottle were 67% less likely to have high satiety responsiveness compared to directly breastfed children, after controlling for child age, child weight status, maternal race/ethnicity, and maternal education. There was no association of bottle-feeding (either human milk or formula) with young children's food responsiveness and enjoyment of food. There was neither an association of direct breastfeeding with current child weight status, nor was there a clear difference between directly breastfed and bottle-fed children in growth trajectories from 6- to 36-months. More rapid infant changes in weight-for-age score were associated with lower satiety responsiveness, higher food responsiveness and higher enjoyment of food in later childhood. Conclusion: While direct breastfeeding was not found to differentially affect growth trajectories from infancy to childhood compared to bottle-feeding, results suggest direct breastfeeding during early infancy is associated with greater appetite regulation later in childhood. A better understanding of such behavioral distinctions between direct breastfeeding and bottle-feeding may identify new pathways to reduce the pediatric obesity epidemic. © 2011 DiSantis et al; licensee BioMed Central Ltd.
Quench dynamics in the one-dimensional mass-imbalanced ionic Hubbard model
Creators: name: Xie, Zhuotao
name: Zhao, Ming
name: Lu, Hantao
name: Huang, Zhongbing
name: Fiete, Gregory A.
name: Hu, Xiang
name: Du, Liang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using the time-dependent Lanczos method, we study the non-equilibrium dynamics of the one-dimensional ionic-mass imbalanced Hubbard chain driven by a quantum quench of the on-site Coulomb interaction, where the system is prepared in the ground state of the Hamiltonian with a different Hubbard interaction. A full exact diagonalization is adopted to study the zero temperature phase diagram in equilibrium, which is shown to be in good agreement with previous studies using density matrix renormalization group (DMRG). We then study the non-equilibrium quench dynamics of the spin and charge order parameters by fixing the initial and final Coulomb interaction while changing the quenching time protocols. The Lanczos method allows us to reach longer times following the quench than DMRG. Our study shows that the time evolution of the charge and spin order parameters strongly depend on the quenching time protocols. In particular, the effective temperature of the system will decrease monotonically as the quenching time is increased. Finally, by taking the final Coulomb interaction strength to be in the strong coupling regime, we find that the oscillation frequency of the charge order parameter increases monotonically with the Coulomb interaction. By contrast, the frequency of the spin order parameter decreases monotonically with increasing Coulomb interaction. We explain this result using an effective spin model in the strong coupling limit. Our study suggests strategies to engineer the relaxation behavior of interacting quantum many-particle systems.
description: 9 pages, 6 figures
Quantitative single cell monitoring of protein synthesis at subcellular resolution using fluorescently labeled tRNA
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: Animals
Astrocytes
CHO Cells
Cricetinae
Cricetulus
Fluorescence Resonance Energy Transfer
Fluorescent Dyes
Mice
Mice, Inbred C57BL
Microscopy, Fluorescence
Protein Biosynthesis
RNA, Transfer
Single-Cell Analysis
Viral Proteins

description: We have developed a novel technique of using fluorescent tRNA for translation monitoring (FtTM). FtTM enables the identification and monitoring of active protein synthesis sites within live cells at submicron resolution through quantitative microscopy of transfected bulk uncharged tRNA, fluorescently labeled in the D-loop (fl-tRNA). The localization of fl-tRNA to active translation sites was confirmed through its co-localization with cellular factors and its dynamic alterations upon inhibition of protein synthesis. Moreover, fluorescence resonance energy transfer (FRET) signals, generated when fl-tRNAs, separately labeled as a FRET pair occupy adjacent sites on the ribosome, quantitatively reflect levels of protein synthesis in defined cellular regions. In addition, FRET signals enable detection of intra-populational variability in protein synthesis activity. We demonstrate that FtTM allows quantitative comparison of protein synthesis between different cell types, monitoring effects of antibiotics and stress agents, and characterization of changes in spatial compartmentalization of protein synthesis upon viral infection. © The Author(s) 2011. Published by Oxford University Press.
A RISC-V Simulator and Benchmark Suite for Designing and Evaluating Vector Architectures
Creators: name: Lazo, Cristóbal Ramírez
name: Hernández, César Alejandro
name: Palomar, Oscar
name: Unsal, Osman Sabri
name: Ramírez, Marco Antonio
name: Cristal, Adrían
Publisher: name: arXiv
Year: 2021
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Vector architectures lack tools for research. Consider the gem5 simulator, which is possibly the leading platform for computer-system architecture research. Unfortunately, gem5 does not have an available distribution that includes a flexible and customizable vector architecture model. In consequence, researchers have to develop their own simulation platform to test their ideas, which consume much research time. However, once the base simulator platform is developed, another question is the following: Which applications should be tested to perform the experiments? The lack of Vectorized Benchmark Suites is another limitation. To face these problems, this work presents a set of tools for designing and evaluating vector architectures. First, the gem5 simulator was extended to support the execution of RISC-V Vector instructions by adding a parameterizable Vector Architecture model for designers to evaluate different approaches according to the target they pursue. Second, a novel Vectorized Benchmark Suite is presented: a collection composed of seven data-parallel applications from different domains that can be classified according to the modules that are stressed in the vector architecture. Finally, a study of the Vectorized Benchmark Suite executing on the gem5-based Vector Architecture model is highlighted. This suite is the first in its category that covers the different possible usage scenarios that may occur within different vector architecture designs such as embedded systems, mainly focused on short vectors, or High-Performance-Computing (HPC), usually designed for large vectors.
description: ACM Transactions on Architecture and Code Optimization, Volume 17, Issue 4, December 2020, Article No.38
Circulating tumor cells as prognostic and predictive markers in metastatic breast cancer patients receiving first-line systemic treatment
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: Adult
Aged
Aged, 80 and over
Antibodies, Monoclonal, Humanized
Bevacizumab
Biomarkers, Tumor
Breast Neoplasms
Cell Line, Tumor
Cells, Cultured
Disease Progression
ErbB Receptors
Female
Humans
Lapatinib
Middle Aged
Neoplastic Cells, Circulating
Predictive Value of Tests
Prognosis
Quinazolines
Trastuzumab

description: Introduction: Circulating tumor cells (CTCs) represent an independent predictor of outcome in patients with metastatic breast cancer (MBC). We assessed the prognostic impact of CTCs according to different first-line systemic treatments, and explored their potential predictive value in MBC patients.Methods: We retrospectively evaluated 235 newly diagnosed MBC patients, treated at the University of Texas MD Anderson Cancer Center. All patients had a baseline CTC assessment performed with CellSearch ®. Progression-free survival and overall survival were compared with the log-rank test between groups, according to CTC count (< 5 vs. ≥ 5) and type of systemic therapy. We further explored the predictive value of baseline CTCs in patients receiving different treatments.Results: At a median follow-up of 18 months, the CTC count was confirmed to be a robust prognostic marker in the overall population (median progression-free survival 12.0 and 7.0 months for patients with CTC < 5 and ≥ 5, respectively; P < 0.001). Conversely, in patients with human epidermal growth factor receptor-2-overexpressed/amplified tumors receiving trastuzumab or lapatinib, the baseline CTC count was not prognostic (median progression-free survival 14.5 months for patients with CTC < 5 and 16.1 months for those with CTC ≥ 5; P = 0.947). Furthermore, in patients with human epidermal growth factor receptor-2 normal tumors, a baseline CTC count ≥ 5 identified subjects who derived benefit from more aggressive treatments, including combination chemotherapy and chemotherapy plus bevacizumab.Conclusions: This analysis suggests that the prognostic information provided by CTC count may be useful in patient stratifications and therapeutic selection, particularly in the group with positive CTCs, in which various therapeutic choices may procure differential palliative benefit. © 2011 Giuliano et al.; licensee BioMed Central Ltd.
Learning Heterogeneous Agent Cooperation via Multiagent League Training
Creators: name: Fu, Qingxu
name: Ai, Xiaolin
name: Yi, Jianqiang
name: Qiu, Tenghai
name: Yuan, Wanmai
name: Pu, Zhiqiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Many multiagent systems in the real world include multiple types of agents with different abilities and functionality. Such heterogeneous multiagent systems have significant practical advantages. However, they also come with challenges compared with homogeneous systems for multiagent reinforcement learning, such as the non-stationary problem and the policy version iteration issue. This work proposes a general-purpose reinforcement learning algorithm named Heterogeneous League Training (HLT) to address heterogeneous multiagent problems. HLT keeps track of a pool of policies that agents have explored during training, gathering a league of heterogeneous policies to facilitate future policy optimization. Moreover, a hyper-network is introduced to increase the diversity of agent behaviors when collaborating with teammates having different levels of cooperation skills. We use heterogeneous benchmark tasks to demonstrate that (1) HLT promotes the success rate in cooperative heterogeneous tasks; (2) HLT is an effective approach to solving the policy version iteration problem; (3) HLT provides a practical way to assess the difficulty of learning each role in a heterogeneous team.
Topological exact flat bands in two dimensional materials under periodic strain
Creators: name: Wan, Xiaohan
name: Sarkar, Siddhartha
name: Lin, Shi-Zeng
name: Sun, Kai
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study flat bands and their topology in 2D materials with quadratic band crossing points (QBCPs) under periodic strain. In contrast to Dirac points in graphene, where strain acts as a vector potential, strain for QBCPs serves as a director potential with angular momentum $\ell=2$. We prove that when the strengths of the strain fields hit certain ``magic" values, exact flat bands with $C=\pm 1$ emerge at charge neutrality point in the chiral limit, in strong analogy to magic angle twisted bilayer graphene. These flat bands have ideal quantum geometry for the realization of fractional Chern insulators, and they are always fragile topological. The number of flat bands can be doubled for certain point group, and the interacting Hamiltonian is exactly solvable at integer fillings. We further demonstrate the stability of these flat bands against deviations from the chiral limit, and discuss possible realization in 2D materials.
FOREIGN EXPERIENCES IN ENSURING THE QUALITY OF EDUCATION
Creators: name: Kazimova M.Nafisakhan docent  of Kokand State Pedagogical Institute, Uzbekistan
name: Abdumannonova Rayhon Avaz qizi Student of KSPI, Uzbekistan
Publisher: name: Zenodo
Year: 2023

description: In this article, the work carried out in the educational process, attention to the quality of education, work carried out as education in foreign countries, opinions and works of scientists about the quality of education, information about the quality of education about the increase is provided.

Key words: quality of education, education system, modern technologies, Japanese methods, Japanese innovative management methods, European and American methods.
Enhancer of zeste homolog 2 (EZH2) in pediatric soft tissue sarcomas: First implications
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: EZH2
soft tissue sarcomas
epigenetics
methylation
methyltransferases

description: Soft tissue sarcomas of childhood are a group of heterogeneous tumors thought to be derived from mesenchymal stem cells. Surgical resection is effective only in about 50% of cases and resistance to conventional chemotherapy is often responsible for treatment failure. Therefore, investigations on novel therapeutic targets are of fundamental importance. Deregulation of epigenetic mechanisms underlying chromatin modifications during stem cell differentiation has been suggested to contribute to soft tissue sarcoma pathogenesis. One of the main elements in this scenario is enhancer of zeste homolog 2 (EZH2), a methyltransferase belonging to the Polycomb group proteins. EZH2 catalyzes histone H3 methylation on gene promoters, thus repressing genes that induce stem cell differentiation to maintain an embryonic stem cell signature. EZH2 deregulated expression/function in soft tissue sarcomas has been recently reported. In this review, an overview of the recently reported functions of EZH2 in soft tissue sarcomas is given and the hypothesis that its expression might be involved in soft tissue sarcomagenesis is discussed. Finally, the therapeutic potential of epigenetic therapies modulating EZH2-mediated gene repression is considered. © 2011 Ciarapica et al; licensee BioMed Central Ltd.
Simulation of potential and species distribution in a Li||Bi liquid metal battery using coupled meshes
Creators: name: Duczek, Carolina
name: Weber, Norbert
name: Godinez-Brizuela, Omar E.
name: Weier, Tom
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In this work a 1D finite volume based model using coupled meshes is introduced to capture potential and species distribution throughout the discharge process in a lithium bismuth liquid metal battery while neglecting hydrodynamic effects, focusing on the electrochemical properties of the cell and the mass transport in electrolyte and cathode. Interface reactions in the electrical double layer are considered through the introduction of a discrete jump of the potential modelled as periodic boundary condition to resolve interfacial discontinuities in the cell potential. A balanced-force like approach is implemented to ensure consistent calculation at the interface level. It is found that mass transport and concentration gradients have a significant effect on the cell overpotentials and thus on cell performance and cell voltage. By quantifying overvoltages in the Li Bi cell with a mixed cation electrolyte, it is possible to show that diffusion and migration current density could have counteractive effects on the cell voltage. Furthermore, the simulated limiting current density is observed to be much lower than experimentally measured, which can be attributed to convective effects in the electrolyte that need to be addressed in future simulations. The solver is based on the open source library OpenFOAM and thoroughly verified against the equivalent system COMSOL multiphysics and further validated with experimental results. It is openly available at https://doi.org/10.14278/rodare.2313.
Does respondent driven sampling alter the social network composition and health-seeking behaviors of illicit drug users followed prospectively?
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: subject: Adult
subject: Demography
subject: FOS: Sociology
subject: Drug Users
subject: Female
subject: HIV Infections
subject: Health Surveys
subject: Humans
subject: Illicit Drugs
subject: Male
subject: Patient Acceptance of Health Care
subject: Prospective Studies
subject: Social Support

description: Respondent driven sampling (RDS) was originally developed to sample and provide peer education to injection drug users at risk for HIV. Based on the premise that drug users' social networks were maintained through sharing rituals, this peer-driven approach to disseminate educational information and reduce risk behaviors capitalizes and expands upon the norms that sustain these relationships. Compared with traditional outreach interventions, peer-driven interventions produce greater reductions in HIV risk behaviors and adoption of safer behaviors over time, however, control and intervention groups are not similarly recruited. As peer-recruitment may alter risk networks and individual risk behaviors over time, such comparison studies are unable to isolate the effect of a peer-delivered intervention. This analysis examines whether RDS recruitment (without an intervention) is associated with changes in health-seeking behaviors and network composition over 6 months. New York City drug users (N = 618) were recruited using targeted street outreach (TSO) and RDS (2006-2009). 329 non-injectors (RDS = 237; TSO = 92) completed baseline and 6-month surveys ascertaining demographic, drug use, and network characteristics. Chi-square and t-tests compared RDS- and TSO-recruited participants on changes in HIV testing and drug treatment utilization and in the proportion of drug using, sex, incarcerated and social support networks over the follow-up period. The sample was 66% male, 24% Hispanic, 69% black, 62% homeless, and the median age was 35. At baseline, the median network size was 3, 86% used crack, 70% used cocaine, 40% used heroin, and in the past 6 months 72% were tested for HIV and 46% were enrolled in drug treatment. There were no significant differences by recruitment strategy with respect to changes in health-seeking behaviors or network composition over 6 months. These findings suggest no association between RDS recruitment and changes in network composition or HIV risk, which supports prior findings from prospective HIV behavioral surveillance and intervention studies. © 2011 Rudolph et al.
Fractional Mutual Statistics on Integer Quantum Hall Edges
Creators: name: Lee, June-Young M.
name: Han, Cheolhee
name: Sim, H. -S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Fractional charge and statistics are hallmarks of low-dimensional interacting systems such as fractional quantum Hall (QH) systems. Integer QH systems are regarded noninteracting, yet they can have fractional charge excitations when they couple to another interacting system or time-dependent voltages. Here, we notice Abelian fractional mutual statistics between such a fractional excitation and an electron, and propose a setup for detection of the statistics, in which a fractional excitation is generated at a source and injected to a Mach-Zehnder interferometer (MZI) in the integer QH regime. In a parameter regime, the dominant interference process involves braiding, via double exchange, between an electron excited at an MZI beam splitter and the fractional excitation. The braiding results in the interference phase shift by the phase angle of the mutual statistics. This proposal for directly observing the fractional mutual statistics is within experimental reach.
description: Main text: 6 pages, 2 figures, Supplemental material: 7 pages, 3 figures
Visualization of actin polymerization in invasive structures of macrophages and carcinoma cells using photoconvertible β-actin - Dendra2 fusion proteins
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: Actin Cytoskeleton
Actins
Adenocarcinoma
Animals
Cell Adhesion
Cell Tracking
Cells, Cultured
Green Fluorescent Proteins
Macrophages
Mammary Neoplasms, Animal
Mice
Microscopy, Fluorescence
Neoplasm Invasiveness
Polymerization
Protein Multimerization
Pseudopodia
Rats
Recombinant Fusion Proteins

description: Actin polymerization controls a range of cellular processes, from intracellular trafficking to cell motility and invasion. Generation and elongation of free barbed ends defines the regions of actively polymerizing actin in cells and, consequently, is of importance in the understanding of the mechanisms through which actin dynamics are regulated. Herein we present a method that does not involve cell permeabilization and provides direct visualization of growing barbed ends using photoswitchable β-actin - Dendra2 constructs expressed in murine macrophage and rat mammary adenocarcinoma cell lines. The method exploits the ability of photoconverted (red) G-actin species to become incorporated into pre-existing (green) actin filaments, visualized in two distinct wavelengths using TIRF microscopy. In growing actin filaments, photoconverted (red) monomers are added to the barbed end while only green monomers are recycled from the pointed end. We demonstrate that incorporation of actin into intact podosomes of macrophages occurs constitutively and is amenable to inhibition by cytochalasin D indicating barbed end incorporation. Additionally, actin polymerization does not occur in quiescent invadopodial precursors of carcinoma cells suggesting that the filaments are capped and following epidermal growth factor stimulation actin incorporation occurs in a single but extended peak. Finally, we show that Dendra2 fused to either the N- or the C-terminus of β-actin profoundly affects its localization and incorporation in distinct F-actin structures in carcinoma cells, thus influencing the ability of monomers to be photoconverted. These data support the use of photoswitchable actin-Dendra2 constructs as powerful tools in the visualization of free barbed ends in living cells. © 2011 Dovas et al.
Mechanical Theory of Nonequilibrium Coexistence and Motility-Induced Phase Separation
Creators: name: Omar, Ahmad K.
name: Row, Hyeongjoo
name: Mallory, Stewart A.
name: Brady, John F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Nonequilibrium phase transitions are routinely observed in both natural and synthetic systems. The ubiquity of these transitions highlights the conspicuous absence of a general theory of phase coexistence that is broadly applicable to both nonequilibrium and equilibrium systems. Here, we present a general mechanical theory for phase separation rooted in ideas explored nearly a half-century ago in the study of inhomogeneous fluids. The core idea is that the mechanical forces within the interface separating two coexisting phases uniquely determine coexistence criteria, regardless of whether a system is in equilibrium or not. We demonstrate the power and utility of this theory by applying it to active Brownian particles, predicting a quantitative phase diagram for motility-induced phase separation in both two and three dimensions. This formulation additionally allows for the prediction of novel interfacial phenomena, such as an increasing interface width while moving deeper into the two-phase region, a uniquely nonequilibrium effect confirmed by computer simulations. The self-consistent determination of bulk phase behavior and interfacial phenomena offered by this mechanical perspective provide a concrete path forward towards a general theory for nonequilibrium phase transitions.
title: El paciente afónico. ¿Es vago o recurrente? Revisión de la parálisis laríngea.
Creators: name: Quintana Blanco, David
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neoplasia
subject: Speech disorders
subject: Computer Applications-3D
subject: Contrast agent-intravenous
subject: CT
subject: Ear / Nose / Throat
subject: Anatomy
subject: Head and neck

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Más de la mitad de los pacientes con neuropatía vagal o recurrente laríngea tienen una causa tóxico/infecciosa o idiopática,
sin embargo existen causas orgánicas que debemos descartar. Ante un paciente afónico,
además de buscar una posible...
A Hamilton-Jacobi-based Proximal Operator
Creators: name: Osher, Stanley
name: Heaton, Howard
name: Fung, Samy Wu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: First-order optimization algorithms are widely used today. Two standard building blocks in these algorithms are proximal operators (proximals) and gradients. Although gradients can be computed for a wide array of functions, explicit proximal formulas are only known for limited classes of functions. We provide an algorithm, HJ-Prox, for accurately approximating such proximals. This is derived from a collection of relations between proximals, Moreau envelopes, Hamilton-Jacobi (HJ) equations, heat equations, and Monte Carlo sampling. In particular, HJ-Prox smoothly approximates the Moreau envelope and its gradient. The smoothness can be adjusted to act as a denoiser. Our approach applies even when functions are only accessible by (possibly noisy) blackbox samples. We show HJ-Prox is effective numerically via several examples.
Radio and spectroscopic properties of miniature radio galaxies: revealing the bulk of the radio-loud AGN population
Creators: name: Baldi, Ranieri D.
name: Capetti, Alessandro
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore radio and spectroscopic properties of a sample of 14 miniature radio galaxies, i.e. early-type core galaxies hosting radio-loud AGN of extremely low radio power, 10^(27-29) erg s^(-1) Hz^(-1) at 1.4 GHz. Miniature radio galaxies smoothly extend the relationships found for the more powerful FRI radio galaxies between emission line, optical and radio nuclear luminosities to lower levels. However, they have a deficit of a factor of ~100 in extended radio emission with respect to that of the classical example of 3CR/FRI. This is not due to their low luminosity, since we found radio galaxies of higher radio core power, similar to those of 3CR/FRI, showing the same behavior, i.e. lacking significant extended radio emission. Such sources form the bulk of the population of radio-loud AGN in the Sloan Digital Sky Survey. At a given level of nuclear emission, one can find radio sources with an extremely wide range, a factor of >~100, of radio power. We argue that the prevalence of sources with luminous extended radio structures in flux limited samples is due to a selection bias, since the inclusion of such objects is highly favored. The most studied catalogues of radio galaxies are thus composed by the minority of radio-loud AGN that meet the physical conditions required to form extended radio sources, while the bulk of the population is virtually unexplored.
description: 15 pages. Accepted for publication in A&A
M4.8 Introduce additional components and practices to metadata schema and align them with FAIR data practices
Creators: name: Wimalaratne, Sarala
name: Ulrich, Robert
Publisher: name: Zenodo
Year: 2021
Subjects: FAIR data principles
FAIR certification
FAIRsFAIR
Data repository certification
Trustworthy Data Repositories
CoreTrustSeal
Repository finder

description: This report is a milestone of the FAIRsFAIR project. The document describes the integration of the Repository Finder into DataCite Commons to enable researchers identify FAIR enabling repositories to either deposit their research data or find research output, organizations or researchers related to the repository. First the specific user stories describe the requirements by the research community and are then translated into the product specification for advancing DataCite Commons and accompanying measures by re3data as data source.
The ecology of the ciliated protozoa of Marion Lake, British Columbia
Creators: name: Kool, Richard
Publisher: name: University of British Columbia
Year: 2010

description: The population dynamics of the ciliated Protozoa in Marion Lake sediment are examined. Densities of ciliates range from 10-100/cm², with the yearly mean being 51/cm². Ciliate density is not correlated with rainfall, but is correlated with temperature. However, when the data is detrended, no correlations appear. The number of individuals and the number of species present in a sample are correlated, A negative correlation is found between ciliate density and the populations intrinsic rate of increase at both 1 and 4 meters depth. It is concluded that the ciliate population cannot be controlled by food limitation as the ciliates cannot influence the size of the bacterial population, and the predation rate is not large enough to have a regulatory influence on the ciliate population. The ciliates make an energetic contribution to higher trophic levels, but it probably unimportant when compared to that of the bacteria and microalgae. For deposit feeders, the ciliates are energetically unimportant. However, benthic meiofaunal predators such, as cyclopoid copepods and their nauplii may- be supplied with a considerable amount of their daily energy needs by the ciliates.