cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Space and food utilization by salmonids in marsh habitats of the Fraser River estuary
Creators: name: Dunford, William Errington
Publisher: name: University of British Columbia
Year: 2010

description: The temporal utilization of space and food by juvenile Pacific salmon was studied in selected marsh habitats of the Fraser River Estuary. Two types of marginal habitat were examined- slough habitat (exposed to main current) and channel habitat (backwaters). Chum salmon fry (Oncorhynchus keta) and chinook salmon fry (0. tshawytscha) were the most abundant species present in both habitats, with peak densities occurring in late April. Chum and chinook exploited many similar food sources, and the size of prey selected was examined to show a size segregation of the diet. Chum tended to select a. greater proportion of smaller, planktonic prey, while chinook ingested a greater proportion of larger, benthic prey. The divergence in types of prey and prey size selected was greatest during maximum density in late April and early May. The density of chinook was greater than chum, except in early April. Few chum were taken, after early June, while chinook were present until late July, showing a steady increase in length throughout the season. It is suggested, that chinook may reside in the estuarine marsh habitats temporarily each spring and summer. The chum fry utilize the habitats for feeding, during migration, but disperse to marine habitats in a shorter time period than chinook.
Sleep deprivation alters valuation signals in the ventromedial prefrontal cortex
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: VMPFC
decision making
reward
sleep deprivation
valuation

description: Even a single night of total sleep deprivation (SD) can have dramatic effects on economic decision making. Here we tested the novel hypothesis that SD influences economic decisions by altering the valuation process. Using functional magnetic resonance imaging we identified value signals related to the anticipation and the experience of monetary and social rewards (attractive female faces). We then derived decision value signals that were predictive of each participant's willingness to exchange money for brief views of attractive faces in an independent market task. Strikingly, SD altered decision value signals in ventromedial prefrontal cortex (VMPFC) in proportion to the corresponding change in economic preferences. These changes in preference were independent of the effects of SD on attention and vigilance. Our results provide novel evidence that signals in VMPFC track the current state of the individual, and thus reflect not static but constructed preferences. © 2011 Libedinsky, Smith, Teng, Namburi, Chen, Huettel and Chee.
KASB TANLASHNING IJTIMOIY-PSIXOLOGIK JIHATLARI
Creators: name: Xaydaraliyev, Abdullo
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada maktabning yuqori sinf o‘quvchilarida kasb tanlash motivlari psixologik tadqiqot predmeti sifatida tadqiq qilingan. O‘quvchilarda kasb tanlashga ta’sir ko‘rsatuvchi omillarni aniqlash kasbga yo‘naltirish ishlarining samaradorligini oshirishga xizmat qildi.
Contingent Valuation as a Tool for Environmental Economic Accounting: Case of Estonia
Creators: name: Ehrlich, Üllas
Publisher: name: Estonian Discussions on Economic Policy
Year: 2021

description: The article deals with the possibilities of including non-market ecosystem services into official statistics. Current statistical standard and the GDP calculated on the basis of it do not take into account the value of ecosystem services and therefore the contribution of ecosystems. In recent years (2020–2021) has taken place the revision of System of Environmental-Economic Accounting– Experimental Ecosystem Accounting (UN SEEA EA), aimed at developing a standard for statistics on ecosystem services. Statistics Estonia also participates in this process, using as an input to the experimental statistics of ecosystem services (among other data) the results of the contingent valuation study conducted by the author on the monetary value of ecosystem services of Estonian forests, wetlands and urban areas. The total annual willingness to pay for forest ecosystem services is about 23.9 million euros, for wetland services 12.3 million euros and for urban areas 17.3 million euros. The most important services considered by the respondents were regulatory services. Also, the relative importance of individual services by respondents were examined separately. It turned out that people value ecosystem services aimed at the physical-chemical quality of the environment more than the increase in welfare resulting from personal contact with ecosystems.
description: Estonian Discussions on Economic Policy, Vol. 29 No. 1-2 (2021)
An immersive Open Source environment using Godot
Creators: name: Santucci, Francesca
name: Frenguelli, Federico
name: De Angelis, Alessandro
name: Cuccaro, Ilaria
name: Perri, Damiano
name: Simonetti, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: We present a sample implementation of a Virtual and Augmented Reality immersive environment based on Free and Libre Open Source Hardware and Software and the HTC Vive system, used to enhance the immersive experience of the user and to track her/his movements. The sense of immersion has increased and stimulated using a footplate and a Tibetan bridge, connected to the virtual world as Augmented Reality applications and implemented through an Arduino board, thereby adopting a low cost, open source hardware and software approach. The proposed architecture is relatively affordable from the cost point of view, easy to implement, configure and adapt to different contexts. It can be of great help for organizing laboratory classes for young students to afford the implementation of virtual worlds and Augmented Reality applications.
description: International Conference on Computational Science and Its Applications, ICCSA 2020
Racial differences in tumor necrosis factor-α-induced endothelial microparticles and interleukin-6 production
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: African Americans
endothelial microparticles
endothelium
inflammation
Blotting, Western
Cell Shape
Cell-Derived Microparticles
Cells, Cultured
Enzyme-Linked Immunosorbent Assay
European Continental Ancestry Group
Flow Cytometry
Human Umbilical Vein Endothelial Cells
Humans
Inflammation Mediators
Interleukin-6
Philadelphia
Recombinant Proteins
Superoxide Dismutase
Tumor Necrosis Factor-alpha

description: African Americans (AA) tend to have heightened systemic inflammation and endothelial dysfunction. Endothelial microparticles (EMP) are released from activated/apoptotic endothelial cells (EC) when stimulated by inflammation. The purpose of our study was to assess EMP responses to inflammatory cytokine (TNF-α) and antioxidant (superoxide dismutase, SOD) conditions in human umbilical vein ECs (HUVECs) obtained from AA and Caucasians. EMPs were measured under four conditions: control (basal), TNF-α, SOD, and TNF-α + SOD. Culture supernatant was collected for EMP analysis by flow cytometry and IL-6 assay by ELISA. IL-6 protein expression was assessed by Western blot. AA HUVECs had greater EMP levels under the TNF-α condition compared to the Caucasian HUVECs (6.8 ± 1.1 vs 4.7% ± 0.4%, P = 0.04). The EMP level increased by 89% from basal levels in the AA HUVECs under the TNF-α condition (P = 0.01) compared to an 8% increase in the Caucasian HUVECs (P = 0.70). Compared to the EMP level under the TNF-α condition, the EMP level in the AA HUVECs was lower under the SOD only condition (2.9% ± 0.3%, P = 0.005) and under the TNF-α + SOD condition (2.1% ± 0.4%, P = 0.001). Basal IL-6 concentrations were 56.1 ± 8.8 pg/mL/μg in the AA and 30.9 ± 14.9 pg/mL/μg in the Caucasian HUVECs (P = 0.17), while basal IL-6 protein expression was significantly greater (P < 0.05) in the AA HUVECs. These preliminary observational results suggest that AA HUVECs may be more susceptible to the injurious effects of the proinflammatory cytokine, TNF-α. © 2011 Brown et al, publisher and licensee Dove Medical Press Ltd.
Dyonic solution of Horava-Lifshitz Gravity
Creators: name: Colgáin, Eoin Ó
name: Yavartanoo, Hossein
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently proposed Horava-Lifshitz gravity promises a UV completion of Einstein's theory by sacrificing general covariance at short distances and introducing anisotropic spacetime scaling. Here we present a dyonic solution by coupling this theory to a vector field and we discuss some properties of solution.
description: 7 pages
Binary classification of proteins by a Machine Learning approach
Creators: name: Perri, Damiano
name: Simonetti, Marco
name: Lombardi, Andrea
name: Faginas-Lago, Noelia
name: Gervasi, Osvaldo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Biomolecules (q-bio.BM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: In this work we present a system based on a Deep Learning approach, by using a Convolutional Neural Network, capable of classifying protein chains of amino acids based on the protein description contained in the Protein Data Bank. Each protein is fully described in its chemical-physical-geometric properties in a file in XML format. The aim of the work is to design a prototypical Deep Learning machinery for the collection and management of a huge amount of data and to validate it through its application to the classification of a sequences of amino acids. We envisage applying the described approach to more general classification problems in biomolecules, related to structural properties and similarities.
description: International Conference on Computational Science and Its Applications, ICCSA 2020
Dynamic validation of the Planck/LFI thermal model
Creators: name: Tomasi, M.
name: Cappellini, B.
name: Gregorio, A.
name: Colombo, F.
name: Lapolla, M.
name: Terenzi, L.
name: Morgante, G.
name: Bersanelli, M.
name: Butler, R. C.
name: Galeotta, S.
name: Mandolesi, N.
name: Maris, M.
name: Mennella, A.
name: Valenziano, L.
name: Zacchei, 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 Low Frequency Instrument (LFI) is an array of cryogenically cooled radiometers on board the Planck satellite, designed to measure the temperature and polarization anisotropies of the cosmic microwave backgrond (CMB) at 30, 44 and 70 GHz. The thermal requirements of the LFI, and in particular the stringent limits to acceptable thermal fluctuations in the 20 K focal plane, are a critical element to achieve the instrument scientific performance. Thermal tests were carried out as part of the on-ground calibration campaign at various stages of instrument integration. In this paper we describe the results and analysis of the tests on the LFI flight model (FM) performed at Thales Laboratories in Milan (Italy) during 2006, with the purpose of experimentally sampling the thermal transfer functions and consequently validating the numerical thermal model describing the dynamic response of the LFI focal plane. This model has been used extensively to assess the ability of LFI to achieve its scientific goals: its validation is therefore extremely important in the context of the Planck mission. Our analysis shows that the measured thermal properties of the instrument show a thermal damping level better than predicted, therefore further reducing the expected systematic effect induced in the LFI maps. We then propose an explanation of the increased damping in terms of non-ideal thermal contacts.
description: Planck LFI technical papers published by JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/1748-0221
On the Anticorrelation Between Galaxy Light Concentration and X-ray-to-Optical Flux Ratio
Creators: name: Pović, M.
name: Sánchez-Portal, M.
name: García, A. M. Pérez
name: Bongiovanni, A.
name: Cepa, J.
name: Lorenzo, M. Fernández
name: Lara-López, M. A.
name: González-Serrano, J. I.
name: Alfaro, E. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Active Galactic Nuclei (AGN) play an important role in many aspects of the modern cosmology, and of particular interest is the issue of the interplay between AGN and their host galaxy. Using X-ray and optical data sets, we have explored the properties of a large sample of AGNs in the Subaru/XMM-Newton Deep Survey (SXDS) field, and studied their evolution in relation with the evolution of their host galaxy. We present here an anticorrelation between X-ray-to-optical flux ratio (X/O) and galaxy light concentration (C), which has been found for the first time and might suggest that early type galaxies, having poor matter supply to feed the AGN activity, have lower Eddington rates than those of late type galaxies.
description: 9 pages, 3 figures, accepted for publication in ApJ Letters
Palindromes in infinite ternary words
Creators: name: Balkova, Lubomira
name: Pelantova, Edita
name: Starosta, Stepan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 68R15

description: We study infinite words u over an alphabet A satisfying the property P : P(n)+ P(n+1) = 1+ #A for any n in N, where P(n) denotes the number of palindromic factors of length n occurring in the language of u. We study also infinite words satisfying a stronger property PE: every palindrome of u has exactly one palindromic extension in u. For binary words, the properties P and PE coincide and these properties characterize Sturmian words, i.e., words with the complexity C(n)=n+1 for any n in N. In this paper, we focus on ternary infinite words with the language closed under reversal. For such words u, we prove that if C(n)=2n+1 for any n in N, then u satisfies the property P and moreover u is rich in palindromes. Also a sufficient condition for the property PE is given. We construct a word demonstrating that P on a ternary alphabet does not imply PE.
description: 12 pages
A new method for binary classification of proteins with Machine Learning
Creators: name: Perri, Damiano
name: Simonetti, Marco
name: Lombardi, Andrea
name: Faginas-Lago, Noelia
name: Gervasi, Osvaldo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Biomolecules (q-bio.BM)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: In this work we set out to find a method to classify protein structures using a Deep Learning methodology. Our Artificial Intelligence has been trained to recognize complex biomolecule structures extrapolated from the Protein Data Bank (PDB) database and reprocessed as images; for this purpose various tests have been conducted with pre-trained Convolutional Neural Networks, such as InceptionResNetV2 or InceptionV3, in order to extract significant features from these images and correctly classify the molecule. A comparative analysis of the performances of the various networks will therefore be produced.
description: International Conference on Computational Science and Its Applications, ICCSA 2021
Improved proper name recall in aging after electrical stimulation of the anterior temporal lobes
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: memory
temporal poles
brain stimulation
tDCS
person identity
semantic
social cognition
electrophysiology

description: Evidence from neuroimaging and neuropsychology suggests that portions of the anterior temporal lobes (ATLs) play a critical role in proper name retrieval. We previously found that anodal transcranial direct current stimulation (tDCS) to the ATLs improved retrieval of proper names in young adults (Ross et al., 2010). Here we extend that finding to older adults who tend to experience greater proper-naming deficits than young adults. The task was to look at pictures of famous faces or landmarks and verbally recall the associated proper name. Our results show a numerical improvement in face naming after left or right ATL stimulation, but a statistically significant effect only after left-lateralized stimulation. The magnitude of the enhancing effect was similar in older and younger adults but the lateralization of the effect differed depending on age. The implications of these findings for the use of tDCS as tool for rehabilitation of age-related loss of name recall are discussed.
Fluorescence Spectrometric Determination of Drugs Containing alpha-Methylene Sulfone/Sulfonamide Functional Groups Using N-1-Methylnicotinamide Chloride as a Fluorogenic Agent
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: 0306 Physical Chemistry (incl. Structural)

description: A simple spectrofluorometric method has been developed, adapted, and validated for the quantitative estimation of drugs containing -methylene sulfone/sulfonamide functional groups usingN1-methylnicotinamide chloride (NMNCl) as fluorogenic agent. The proposed method has been applied successfully to the determination of methyl sulfonyl methane (MSM)(1), tinidazole(2), rofecoxib(3), and nimesulide(4)in pure forms, laboratory-prepared mixtures, pharmaceutical dosage forms, spiked human plasma samples, and in volunteer's blood. The method showed linearity over concentration ranging from 1 to 150 g/mL, 10 to 1000 ng/mL, 1 to 1800 ng/mL, and 30 to 2100 ng/mL for standard solutions of1,2,3, and4, respectively, and over concentration ranging from 5 to 150 g/mL, 10 to 1000 ng/mL, 10 to 1700 ng/mL, and 30 to 2350 ng/mL in spiked human plasma samples of1,2,3, and4, respectively. The method showed good accuracy, specificity, and precision in both laboratory-prepared mixtures and in spiked human plasma samples. The proposed method is simple, does not need sophisticated instruments, and is suitable for quality control application, bioavailability, and bioequivalency studies. Besides, its detection limits are comparable to other sophisticated chromatographic methods.
Closed-range posinormal operators and their products
Creators: name: Bourdon, Paul
name: Kubrusly, Carlos
name: Le, Trieu
name: Thompson, Derek
Publisher: name: arXiv
Year: 2022
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 47B20, Secondary 47B15

description: We focus on two problems relating to the question of when the product of two posinormal operators is posinormal, giving (1) necessary conditions and sufficient conditions for posinormal operators to have closed range, and (2) sufficient conditions for the product of commuting closed-range posinormal operators to be posinormal with closed range. We also discuss the relationship between posinormal operators and EP operators (as well as hypo-EP operators), concluding with a new proof of the Hartwig-Katz Theorem, which characterizes when the product of posinormal operators on $\CC^n$ is posinormal.
Establishment of air kerma reference standard for low dose rate Cs-137 brachytherapy sources
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: Brachytherapy
Cesium Radioisotopes
Graphite
Monte Carlo Method
Photons
Radiotherapy Dosage
Reference Standards

description: A guarded cylindrical graphite ionization chamber of nominal volume 1000 cm3 was designed and fabricated for use as a reference standard for low-dose rate 137Cs brachytherapy sources. The air kerma calibration coefficient (NK) of this ionization chamber was estimated analytically using Burlin's general cavity theory, as well as by the Monte Carlo simulation and validated experimentally using Amersham CDCS-J-type 137Cs reference source. In the analytical method, the NK was calculated for 662 keV gamma rays of 137Cs brachytherapy source. In the Monte Carlo method, the geometry of the measurement setup and physics-related input data of the 137Cs source and the surrounding material were simulated using the Monte Carlo N-Particle code. The photon energy fluence was used to arrive at the reference air kerma rate (RAKR) using mass energy absorption coefficient. The energy deposition rates were used to simulate the value of charge rate in the ionization chamber, and the NK was determined. The analytical and Monte Carlo values of NK of the cylindrical graphite ionization chamber for 137Cs brachytherapy source are in agreement within 1.07%. The deviation of analytical and Monte Carlo values from experimental values of NK is 0.36% and 0.72%, respectively. This agreement validates the analytical value, and establishes this chamber as a reference standard for RAKR or AKS measurement of 137Cs brachytherapy sources.
A Novel Concept for Mass as Complex-Mass towards Wave-particle Duality
Creators: name: Gupta, R. C.
name: Pradhan, Anirudh
name: Gupta, Sushant
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In the present paper a new concept is introduced that: `mass is a complex quantity'. The concept of complex-mass suggests that the total mass M of a moving body is complex sum of: (i) the real-part (grain or rest) mass $m_{g}$ establishing its particle behaviour and (ii) the imaginary-part mass $m_{p}$ governing its wave properties. Mathematically, the complex mass $M = m_{g} + im_{p}$; the magnitude $\mid M \mid = (m_{g}^{2} + m_{p}^{2})^{1/2}. The theory proposed here explains successfully several effects such as `Compton effect' and `refraction of light' which could not be explained otherwise by a single theory of wave or particle. Also explained are `Doppler effect for light', `photo-electric effect', `Uncertainty principle', `Relativity' and `supersymmetry'
description: 19 pages, 4 figures
One Proxy Device Is Enough for Hardware-Aware Neural Architecture Search
Creators: name: Lu, Bingqian
name: Yang, Jianyi
name: Jiang, Weiwen
name: Shi, Yiyu
name: Ren, Shaolei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Convolutional neural networks (CNNs) are used in numerous real-world applications such as vision-based autonomous driving and video content analysis. To run CNN inference on various target devices, hardware-aware neural architecture search (NAS) is crucial. A key requirement of efficient hardware-aware NAS is the fast evaluation of inference latencies in order to rank different architectures. While building a latency predictor for each target device has been commonly used in state of the art, this is a very time-consuming process, lacking scalability in the presence of extremely diverse devices. In this work, we address the scalability challenge by exploiting latency monotonicity -- the architecture latency rankings on different devices are often correlated. When strong latency monotonicity exists, we can re-use architectures searched for one proxy device on new target devices, without losing optimality. In the absence of strong latency monotonicity, we propose an efficient proxy adaptation technique to significantly boost the latency monotonicity. Finally, we validate our approach and conduct experiments with devices of different platforms on multiple mainstream search spaces, including MobileNet-V2, MobileNet-V3, NAS-Bench-201, ProxylessNAS and FBNet. Our results highlight that, by using just one proxy device, we can find almost the same Pareto-optimal architectures as the existing per-device NAS, while avoiding the prohibitive cost of building a latency predictor for each device. GitHub: https://github.com/Ren-Research/OneProxy
description: Accepted by the ACM SIGMETRICS 2022. Published in the Proceedings of the ACM on Measurement and Analysis of Computing Systems, vol. 5, no. 3, Article 34, December 2021. GitHub: https://github.com/Ren-Research/OneProxy
Analysis of Y-linked temperature-sensitive mutations in Drosophila melanogaster causing male sterility or great aspirations
Creators: name: Suchowersky, Oksana
Publisher: name: University of British Columbia
Year: 2010

description: A number of EMS-induced heat-sensitive and cold-sensitive male sterile mutations were recovered on an XY chromosome. All mutations which recovered fertility in the presence of a free Y chromosome were classified as Y-linked. Of the Y- linked hs mutations, all were fertile with a free Y[sup L] fragment, while the cs mutations were fertile with a Y[sup S] fragment. Ten of the hs Y-linked mutations were studied in detail; eight of these were shown to be unambiguously located on Y[sup L], and had a temperature sensitive period coinciding with spermatid differentiation. Two of the hs mutant stocks were double mutations and at least one of these stocks had an X-linked mutation which interacted with the Y chromosome. This stock had a tsp which, although exerting its effect during spermio- genesis, was prior to that of the mutations located on Y[sup L]. Of the 5 cs mutations classified as Y-linked, at least three were shown to be mutations on the X chromosome which interacted with Y[sup S] The tsp's of these mutations are either pre-or early post-meiotic. Thus, no ts mutations were recovered on Y[sup S]. These results suggest that: 1) the fertility factors on Y[sup L] are present in single copies and produce products which are directly involved in spermiogenesis, 2) the genes on Y[sup S] could have a regulatory function during spermatogenesis, and either do not produce products which are thermo-labile, or are present in multiple copies, 3) there are a class of genes on the X chromosome which affect spermatogenesis through interaction with the Y chromosome. Several models were proposed to account for this X-Y chromosome interaction.
Phase Coexistence Implications of Violating Newton's Third Law
Creators: name: Chiu, Yu-Jen
name: Omar, Ahmad K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Newton's third law, actio = reactio, is a foundational statement of classical mechanics. However, in natural and living systems, this law appears to be routinely violated for constituents interacting in a nonequilibrium environment. Here, we use computer simulations to explore the macroscopic phase behavior implications of breaking microscopic interaction reciprocity for a simple model system. We consider a binary mixture of attractive particles and introduce a parameter which is a continuous measure of the degree to which interaction reciprocity is broken. In the reciprocal limit, the species are indistinguishable and the system phase separates into domains with distinct densities and identical compositions. Increasing nonreciprocity is found to drive the system to explore a rich assortment of phases, including phases with strong composition asymmetries and three-phase coexistence. Many of the states induced by these forces, including traveling crystals and liquids, have no equilibrium analogue. By mapping the complete phase diagram for this model system and characterizing these unique phases, our findings offer a concrete path forward towards understanding how nonreciprocity shapes the structures found in living systems and how this might be leveraged in the design of synthetic materials.
High pressure study of BaFe2As2 - role of hydrostaticity and uniaxial stress
Creators: name: Duncan, W. J.
name: Welzel, O. P.
name: Harrison, C.
name: Wang, X. F.
name: Chen, X. H.
name: Grosche, F. M.
name: Niklowitz, P. G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the evolution of the electrical resistivity of BaFe2As2 single crystals with pressure. The samples used were from the same batch grown from self flux and showed properties that were highly reproducible. Samples were pressurised using three different pressure media: pentane-isopentane (in a piston cylinder cell), Daphne oil (in an alumina anvil cell) and steatite (in a Bridgman cell). Each pressure medium has its own intrinsic level of hydrostaticity, which dramatically affects the phase diagram. An increasing uniaxial pressure component in this system quickly reduces spin density wave order and favours the appearance of superconductivity, similar to what is seen in SrFe2As2.
description: 11 pages
MPEC 2024-S156 : 2024 SE4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 SE4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Notes on the disentangling of spectra I. Enhancement in precision
Creators: name: Hadrava, Petr
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: The technique of disentangling has been applied to numerous high-precision studies of spectroscopic binaries and multiple stars. Although, its possibilities have not yet been fully understood and exploited. Aims: Theoretical background aspects of the method, its latest improvements and hints for its use in practice are explained in this series of papers. Methods: In this first paper of the series, we discuss spectral-resolution limitations due to a discrete representation of the observed spectra and introduce a new method how to achieve a precision higher than the step of input-data binning. Results: Based on this principle, the latest version of the KOREL code for Fourier disentangling achieves an increase in precision for an order of magnitude.
description: 2 figures
Universal KPZ scaling in noisy hybrid quantum circuits
Creators: name: Liu, Shuo
name: Li, Ming-Rui
name: Zhang, Shi-Xin
name: Jian, Shao-Kai
name: Yao, Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Measurement-induced phase transitions (MIPT) have attracted increasing attention due to the rich phenomenology of entanglement structures and their relation with quantum information processing. Since physical systems are unavoidably coupled to environment, quantum noise needs be considered in analyzing a system with MIPT, which may qualitatively modify or even destroy certain entanglement structure of the system. In this Letter, we investigate the effect of quantum noise modeled by reset quantum channel acting on each site with probability $q$ on MIPT. Based on the numerical results from the Clifford circuits, we show that the quantum noise can qualitatively change the entanglement properties - the entanglement obeys ``area law'' instead of ``volume law'' with projective measurement rate $p
description: 4.5 pages + references + supplemental, 4 figures
Deep-water chemosynthetic ecosystem research during the census of marine life decade and beyond: A proposed deep-ocean road map
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: Ecosystem
Marine Biology
Oceans and Seas
Seawater

description: The ChEss project of the Census of Marine Life (2002-2010) helped foster internationally-coordinated studies worldwide focusing on exploration for, and characterization of new deep-sea chemosynthetic ecosystem sites. This work has advanced our understanding of the nature and factors controlling the biogeography and biodiversity of these ecosystems in four geographic locations: the Atlantic Equatorial Belt (AEB), the New Zealand region, the Arctic and Antarctic and the SE Pacific off Chile. In the AEB, major discoveries include hydrothermal seeps on the Costa Rica margin, deepest vents found on the Mid-Cayman Rise and the hottest vents found on the Southern Mid-Atlantic Ridge. It was also shown that the major fracture zones on the MAR do not create barriers for the dispersal but may act as trans-Atlantic conduits for larvae. In New Zealand, investigations of a newly found large cold-seep area suggest that this region may be a new biogeographic province. In the Arctic, the newly discovered sites on the Mohns Ridge (71°N) showed extensive mats of sulfur-oxidisng bacteria, but only one gastropod potentially bears chemosynthetic symbionts, while cold seeps on the Haakon Mossby Mud Volcano (72°N) are dominated by siboglinid worms. In the Antarctic region, the first hydrothermal vents south of the Polar Front were located and biological results indicate that they may represent a new biogeographic province. The recent exploration of the South Pacific region has provided evidence for a sediment hosted hydrothermal source near a methane-rich cold-seep area. Based on our 8 years of investigations of deep-water chemosynthetic ecosystems worldwide, we suggest highest priorities for future research: (i) continued exploration of the deep-ocean ridge-crest; (ii) increased focus on anthropogenic impacts; (iii) concerted effort to coordinate a major investigation of the deep South Pacific Ocean - the largest contiguous habitat for life within Earth's biosphere, but also the world's least investigated deep-ocean basin. © 2011 German et al.
Planck-LFI radiometers tuning
Creators: name: Cuttaia, Francesco
name: Mennella, Aniello
name: Stringhetti, Luca
name: Maris, Michele
name: Terenzi, Luca
name: Tomasi, Maurizio
name: Villa, Fabrizio
name: Bersanelli, Marco
name: Butler, Christopher Reginald
name: Cappellini, Benedetta
name: Cuevas, Leticia Perez
name: D'Arcangelo, Ocleto
name: Davis, Richard
name: Frailis, Marco
name: Franceschet, Cristian
name: Franceschi, Enrico
name: Gregorio, Anna
name: Hoyland, Roger
name: Leonardi, Rodrigo
name: Lowe, Stuart
name: Mandolesi, Nazzareno
name: Meinhold, Peter
name: Mendes, Luis
name: Roddis, Neil
name: Sandri, Maura
name: Valenziano, Luca
name: Wilkinson, Althea
name: Zacchei, Andrea
name: Zonca, Andrea
name: Battaglia, Paola
name: De Nardo, Stefania
name: Grassi, Stefano
name: Lapolla, Marco
name: Leutenegger, Paolo
name: Miccolis, Maurizio
name: Silvestri, Roberto
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: "This paper is part of the Prelaunch status LFI papers published on JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/jinst" This paper describes the Planck Low Frequency Instrument tuning activities performed through the ground test campaigns, from Unit to Satellite Levels. Tuning is key to achieve the best possible instrument performance and tuning parameters strongly depend on thermal and electrical conditions. For this reason tuning has been repeated several times during ground tests and it has been repeated in flight before starting nominal operations. The paper discusses the tuning philosophy, the activities and the obtained results, highlighting developments and changes occurred during test campaigns. The paper concludes with an overview of tuning performed during the satellite cryogenic test campaign (Summer 2008) and of the plans for the just started in-flight calibration.
description: This is an author-created, un-copyedited version of an article accepted for publication in JINST. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at http://dx.doi.org/10.1088/1748-0221/4/12/T12013]
Confinement Effect on Thermopower of Electrolytes
Creators: name: Qian, Xin
name: Liu, Te-Huan
name: Yang, Ronggui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ionic Seebeck effect of electrolytes has shown promising applications in harvesting energy from low-grade waste-heat sources with small temperature difference from the environment, which can power sensors and Internet-of-Things devices. Recent experiments have demonstrated giant thermopower (~ 10 mV/K) of electrolytes under confinement due to the overlapping of electric double layer (EDL). Nonetheless, there has been no consensus on the theory of the ionic Seebeck effect, especially whether the thermopower depends on ionic diffusivities, imposing confusion on the theoretical interpretation of experimental discovery on giant thermopower of confined electrolytes. This article presents a linear perturbative solution of Poisson-Nernst-Planck (PNP) equations to describe the ionic Seebeck effect of confined liquid electrolytes. We provide both analytical and numerical solutions to the PNP equations for closed systems and open systems connected to reservoirs of electrolytes. The analytical solution captured the confinement effect both along and perpendicular to the temperature gradient, and showed excellent agreement with numerically solved PNP equations for a wide range of EDL potentials, channel widths, and lengths. Finally, we show that for polyelectrolytes with largely mismatched diffusivities, thermopower can only be enhanced for closed system through confinement perpendicular to the temperature gradient.
title: Muestreo venoso en Endocrinología una técnica recuperada
Creators: name: Rodriguez Cabillas, Maria Eugenia
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Pancreas
subject: Vascular

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Describir la técnica empleada y la experiencia de nuestra unidad en el muestreo venoso suprarrenal en casos de hiperaldosteronismo primario,
localización de tumores hiperfuncionantes en páncreas y la toma de muestras de senos petrosos en...
Effects of chronic and early goitrogenic stimulation on thyroidal metabolism in the chicken and in the progeny
Creators: name: Leung, Peter Chung Kwor
Publisher: name: University of British Columbia
Year: 2010

description: White Leghorn pullets were fed goitrogenic rapeseed meal or soybean meal during either or both the growing period and the laying period. Rapeseed meal was fed at a level of 17.5 percent of the starter-grower diet and 19.0 percent of the layer diet. Control rations contained 11.0 and 13.1 percent of soybean meal, respectively. The responses to the dietary treatments were studied when the birds were over 90 weeks of age. Parameters measured included: weights, histology and iodine contents of the thyroid glands, thyroidal I-131 uptake at different time intervals after administration of the radio-iodine, distribution of injected doses of radioiodine in iodinated substances in the thyroid glands, iodine contents of egg yolks, and the thyroidal characteristics of the progeny of these birds at hatching. Birds which were being fed rapeseed meal at the time the thyroid glands were examined showed effects which varied in magnitude according to the length of time over which rapeseed meal had been fed. Thyroid weights, follicle diameters, amounts of epithium and iodine contents of the thyroid glands of rapeseed meal-fed birds increased whereas coupling efficiency declined with time. The effects of overstimulation of the thyroid gland induced by the feeding of goitrogenic rapeseed meal during the growing period persisted for as long as 75 weeks after withdrawal of the source of goitrogen from the diet. Thyroid weights, thyroid iodine contents and radioiodine uptake were all increased in birds which had received goitrogen during the growing period. Follicle diameters were greater and heights of epithelial cells were lower in the thyroid glands of these birds than in those of the control. Eggs from rapeseed meal-fed birds were low in iodine. The thyroid glands of newly-hatched progeny from dams which had been fed goitrogenic rapeseed meal were observed to be hypertrophic. Since analysis of the eggs for goitrin was negative and analysis for iso-thiocyanates indicated similar concentrations in the eggs from birds fed rapeseed meal and from control birds fed soybean meal, the hypothesis was that the low concentration of iodine in the eggs of the goitrous birds was due to diversion of a large proportion of circulating iodine into the thyroid glands with the result that the amounts reaching the developing ova were reduced.
Affective privilege: Asymmetric interference by emotional distracters
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2011
Subjects: attention
affect
interference resolution
emotional conflict
executive function
conflict
cognitive control
Stroop

description: Numerous theories posit that affectively salient stimuli are privileged in their capacity to capture attention and disrupt ongoing cognition. Two underlying assumptions in this theoretical position are that the potency of affective stimuli transcends task boundaries (i.e., emotional distracters do not have to belong to a current task-set to disrupt processing) and that there is an asymmetry between emotional and cognitive processing (i.e., emotional distracters disrupt cognitive processing, but not vice versa). These assumptions have remained largely untested, as common experimental probes of emotion-cognition interaction rarely manipulate task-relevance and only examine one side of the presumed asymmetry of interference. To test these propositions directly, a face-word Stroop protocol was adapted to independently manipulate (a) the congruency between target and distracter stimulus features, (b) the affective salience of distracter features, and (c) the task-relevance of emotional compared to non-emotional target features. A three-way interaction revealed interdependent effects of distracter relevance, congruence, and affective salience. Compared to task-irrelevant distracters, task-relevant congruent distracters facilitated performance and task-relevant incongruent distracters impaired performance, but the latter effect depended on the nature of the target feature and task. Specifically, task-irrelevant emotional distracters resulted in equivalent performance costs as taskrelevant non-emotional distracters, whereas task-irrelevant non-emotional distracters did not produce performance costs comparable to those generated by task-relevant emotional distracters. These results document asymmetric cross-task interference effects for affectively salient stimuli, supporting the notion of affective prioritization in human information processing. © 2011 Reeck and Egner.
title: Tromboembolismo pulmonar: agudo, crónico y ni "fu" ni "fa".
Creators: name: Soliva Martínez, Daniel
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Thorax
subject: Emergency
subject: Vascular
subject: CT
subject: CT-Angiography
subject: Conventional radiography
subject: Acute
subject: Embolism / Thrombosis
subject: Neoplasia

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
- Describir el tromboembolismo pulmonar agudo y crónico mediante ejemplos ilustrativos. - Exponer dudas y conclusiones,
acertadas o no,
en determinados casos muy dudosos o poco concluyentes desde el punto de vista de la...
Effects of spin orbit coupling on proximity induced superconductivity
Creators: name: Mishra, Vivek
name: Li, Yu
name: Zhang, Fu-Chun
name: Kirchner, Stefan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the effect of spin orbit coupling on proximity induced superconductivity in a normal metal attached to a superconductor. Specifically, we consider a heterostructure where the presence of interfaces gives rise to a Rashba spin orbit coupling. The properties of the induced superconductivity in these systems are addressed within the tunneling Hamiltonian formalism. We find that the spin orbit coupling induces a mixture of singlet and triplet pairing and, under specific circumstances, an odd frequency, even parity, spin triplet pairs can arise. We also address the effect of impurity scattering on the induced pairs, and discuss our results in context of heterostructures consisting of materials with spin-momentum locking.
description: 10 pages, 8 figures
Radiation back-reaction in relativistically strong and QED-strong laser fields
Creators: name: Sokolov, Igor V.
name: Nees, John A.
name: Yanovsky, Victor P.
name: Naumova, Natalia M.
name: Mourou, Gerard A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The emission from an electron in the field of a relativistically strong laser pulse is analyzed. At the pulse intensities of \ge 10^{22} W/cm^2 the emission from counter-propagating electrons is modified by the effects of Quantum ElectroDynamics (QED), as long as the electron energy is sufficiently high: E \ge 1 GeV. The radiation force experienced by an electron is for the first time derived from the QED principles and its applicability range is extended towards the QED-strong fields.
description: 4 pages, 4 figures
title: PAAF axilar multidireccional frente a BAG en el estudio de la axila metastásica.
Creators: name: Perez Mila Montalban, Rocio
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neoplasia
subject: Metastases
subject: Biopsy
subject: Puncture
subject: Ultrasound
subject: Lymph nodes
subject: Interventional non-vascular
subject: Breast

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
- Describir las técnicas invasivas ecoguiadas que se llevan a cabo en el manejo de la axila en pacientes con cáncer de mama (PAAF multidireccional y BAG) y sus resultados en cuanto a sensibilidad y especificidad. - Comparar ambas técnicas...