cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Language-aware Domain Generalization Network for Cross-Scene Hyperspectral Image Classification
Creators: name: Zhang, Yuxiang
name: Zhang, Mengmeng
name: Li, Wei
name: Wang, Shuai
name: Tao, Ran
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Text information including extensive prior knowledge about land cover classes has been ignored in hyperspectral image classification (HSI) tasks. It is necessary to explore the effectiveness of linguistic mode in assisting HSI classification. In addition, the large-scale pre-training image-text foundation models have demonstrated great performance in a variety of downstream applications, including zero-shot transfer. However, most domain generalization methods have never addressed mining linguistic modal knowledge to improve the generalization performance of model. To compensate for the inadequacies listed above, a Language-aware Domain Generalization Network (LDGnet) is proposed to learn cross-domain invariant representation from cross-domain shared prior knowledge. The proposed method only trains on the source domain (SD) and then transfers the model to the target domain (TD). The dual-stream architecture including image encoder and text encoder is used to extract visual and linguistic features, in which coarse-grained and fine-grained text representations are designed to extract two levels of linguistic features. Furthermore, linguistic features are used as cross-domain shared semantic space, and visual-linguistic alignment is completed by supervised contrastive learning in semantic space. Extensive experiments on three datasets demonstrate the superiority of the proposed method when compared with state-of-the-art techniques.
description: arXiv admin note: substantial text overlap with arXiv:2209.01634
Bioengineered Internal Anal Sphincter Derived From Isolated Human Internal Anal Sphincter Smooth Muscle Cells
Creators: name: Bitar, Khalil N.
name: Gilmont, Robert R.
name: Somara, Sita
name: Dennis, Robert G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: BACKGROUND & AIMS: The internal anal sphincter (IAS) is a specialized circular smooth muscle that maintains rectoanal continence. In vitro models are needed to study the pathophysiology of human IAS disorders. We bioengineered sphincteric rings from human IAS smooth muscle cells (SMC) and investigated their response to cholinergic stimulation as well as investigated whether protein kinase C (PKC) and Rho kinase signaling pathways remain functional.

METHODS: 3-Dimensional bioengineered ring (3DBR) model of the human IAS was constructed from isolated human IAS SMC obtained from surgery. Contractile properties and force generation in response to acetylcholine, PKC inhibitor calphostin-C, Rho/ROCK inhibitor Y-27632, permeable Rho/ROCK inhibitor c3-exoenzyme, and PKC activator PdBU was measured.

RESULTS: The human IAS 3DBR has the essential characteristics of physiologically functional IAS; it generated a spontaneous myogenic basal tone, and the constructs were able to relax in response to relaxants and contract in response to contractile agents. The constructs generated dose-dependent force in response to acetylcholine. Basal tone was significantly reduced by calphostin-C but not with Y-27632. Acetylcholine-induced force generation was also significantly reduced by calphostin-C but not with Y-27632. PdBU generated force that was equal in magnitude to acetylcholine. Thus, calphostin-C inhibited PdBU-induced force generation, whereas Y-27632 and c3 exoenzyme did not.

CONCLUSIONS: These data indicate that basal tone and acetylcholine-induced force generation depend on signaling through the PKC pathway in human IAS; PKC-mediated force generation is independent of the Rho/ROCK pathway. This human IAS 3DBR model can be used to study the pathophysiology associated with IAS malfunctions.
(3010) William Nicholson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Spatial and orbital planes of the Milky Way satellites: unusual but consistent with $Λ$CDM
Creators: name: Pham, Khanh
name: Kravtsov, Andrey
name: Manwadkar, Viraj
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine the spatial distribution and orbital pole correlations of satellites in a suite of zoom-in high-resolution dissipationless simulations of Miky Way (MW) sized haloes. We use the measured distribution to estimate the incidence of satellite configurations as flattened and as correlated in their orbital pole distribution as satellite system of the Milky Way. We confirm that this incidence is sensitive to the radial distribution of subhaloes and thereby to the processes that affect it, such as artificial disruption due to numerical effects and disruption due to the central disk. Controlling for the resolution effects and bracketing the effects of the disk, we find that the MW satellite system is somewhat unusual (at the $\approx 2-3σ$ level) but is statistically consistent with the $Λ$CDM model, in general agreement with results and conclusions of other recent studies.
description: 10 pages, 7 figures, submitted to MNRAS
Negative Affectivity Data Harmonization
Creators: name: Dagan, Or
name: Schuengel, Carlo
name: Verhage, Marije
name: Synthesis, The Collaboration
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Developmental Psychology
subject: Social and Behavioral Sciences
subject: attachment
subject: father
subject: language
subject: mother
subject: relationship

description: This is a document that follows up on the pre-registered protocol: An individual participant data (IPD) meta-analysis on the attachment network to multiple caregivers (https://osf.io/a3qs9). We follow up on the section Harmonization of developmental outcome measures (p. 10).
On the Nature of Flow Curve and Categorization of Thixotropic Yield Stress Materials
Creators: name: Bhattacharyya, Tulika
name: Jacob, Alan R.
name: Petekidis, George
name: Joshi, Yogesh M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Thixotropy is a phenomenon related to time dependent change in viscosity in presence or absence of flow. The yield stress, on the other hand, represents the minimum value of stress above which steady flow can be sustained. In addition, the yield stress of a material may also change as a function of time. Both these characteristic features in a material strongly influence the steady state flow curve of the same. This study aims to understand the interrelation between thixotropy, yield stress and their relation with the flow curve. In this regard, we study five thixotropic materials that show yield stress. The relaxation time of all the five systems shows power-law dependence on aging time with behaviors ranging from weaker than linear, linear to stronger than linear. Furthermore, the elastic modulus and yield stress has been observed to be constant for some systems while time dependent for the others. We also analyze the experimental behavior through a viscoelastic thixotropic structural kinetic model that predicts the observed experimental behavior of constant as well as time-dependent yield stress quite well. These findings indicate that a non-monotonic steady-state flow curve in a structural kinetic formalism necessarily leads to time-dependent yield stress, while constant yield stress is predicted by a monotonic steady-state flow curve with stress plateau in the limit of low shear rates. The present work, therefore, shows that thixotropic materials may exhibit either monotonic or non-monotonic flow curves. Consequently, thixotropic materials may show no yield stress, constant yield stress or time-dependent yield stress.
$GW$+EDMFT investigation of Pr$_{1-x}$Sr$_x$NiO$_2$ under pressure
Creators: name: Christiansson, Viktor
name: Petocchi, Francesco
name: Werner, Philipp
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the recent experimental observation of a large pressure effect on $T_c$ in Pr$_{1-x}$Sr$_x$NiO$_2$, we study the electronic properties of this compound as a function of pressure for $x=0$ and $0.2$ doping using self-consistent $GW$+EDMFT. Our numerical results demonstrate a non-trivial interplay between chemical doping and physical pressure, and small but systematic changes in the orbital occupations, local level energies, and interaction parameters with increasing pressure. The proper treatment of correlation effects, beyond density function theory, is shown to play an important role in revealing these trends. While the pressure dependent changes in the electronic structure of the undoped compound suggest a more single-band-like behavior in the high-pressure regime, a qualitatively different behavior is found in the doped system. We also point out that the fluctuations in the orbital occupations and spin states are not consistent with a single-band picture, and that at least a two-band model is necessary to reproduce the full result. This multi-orbital nature manifests itself most clearly in the doped compound.
[Kindle] Silo download
Creators: name: Rolen
Publisher: name: Zenodo
Year: 2024

description: Silo pan Hugh Howey

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Caractéristiques

Silo

Hugh Howey

Nb. de pages: 560

Format: Pdf, ePub, MOBI, FB2

ISBN: 9782330026783

Editeur: Actes Sud

Date de parution: 2013

 

 

 

Téléchargement gratuit d'ebook pdf en ligne Silo CHM PDF (French Edition) par Hugh Howey

 

Overview

Dans un futur indéterminé, des survivants vivent depuis plusieurs générations dans un immense silo creusé dans la terre, à l'abri d'une atmosphère devenue toxique. Seul un immense écran relayant les images filmées par des caméras les relie au monde extérieur. Lorsque cette société bannit l'un des siens, il est envoyé dehors, vers une mort certaine, et pourtant, tous sans exception vont, avant de mourir, nettoyer les capteurs des caméras. Pourquoi ? Une grande bouffée d'air (frais) dans la SF.
Heritability and Familial Aggregation of Diverticular Disease: A Population-Based Study of Twins and Siblings
Creators: name: Erichsen, Rune
name: Christensen, Kaare
name: Strate, Lisa L.
name: Sørensen, Henrik Toft
name: Riis, Anders H.
name: Baron, John A.
name: Mortensen, Jakob
name: Pedersen, Jacob Krabbe
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: BACKGROUND & AIMS: Little is known about the role of heritable factors in diverticular disease. We evaluated the contribution of heritable factors to the development of diverticular disease diagnosed at a hospitalization or outpatient visit.

METHODS: Using nationwide patient registries, we identified 142,123 incident cases of diverticular disease diagnosed at a hospitalization (1977-2011) or an outpatient hospital visit (1995-2011) in Denmark, including cases in 10,420 index siblings and 923 twins. We calculated standardized incidence ratios for siblings versus the general population and concordance rates for monozygotic versus dizygotic twin pairs as measures of relative risk (RR).

RESULTS: The RR for diverticular disease in siblings of index cases was 2.92 (95% confidence interval [CI], 2.50-3.39) compared with the general population. The RRs were similar irrespective of the sex of the sibling or index case and were particularly strong in siblings of hospitalized cases and cases that underwent surgery. The proband-wise concordance rate for monozygotic twins was double that of dizygotic twins (0.16 [95% CI, 0.11-0.22] vs 0.07 [95% CI, 0.05-0.11], respectively). The RR of diverticular disease in one twin when the other had diverticular disease was 14.5 (95% CI, 8.9-23) for monozygotic twins compared with 5.5 (95% CI, 3.3-8.6) for dizygotic twins. Associations were stronger in female monozygotic twins compared with male twins (tetrachoric correlation, 0.60 [95% CI, 0.49-0.70] vs 0.33 [95% CI, 0.13-0.51]; P = .03 in an analysis stratified by sex and zygosity). We estimate that 53% (95% CI, 45%-61%) of susceptibility to diverticular disease results from genetic factors.

CONCLUSIONS: Based on a population-based study in Denmark, genetic factors appear to contribute to development of diverticular disease.
Figure S1 from Bluetongue virus spread in Europe is a consequence of climatic, landscape and vertebrate host factors as revealed by phylogeographic inference
Creators: name: Jacquot, Maude
name: Nomikou, Kyriaki
name: Palmarini, Massimo
name: Mertens, Peter
name: Biek, Roman
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Spatio-temporal patterns of the spread of infectious diseases are commonly driven by environmental and ecological factors. This is particularly true for vector-borne diseases because vector populations can be strongly affected by host distribution as well as by climatic and landscape variables. Here, we aim to identify environmental drivers for bluetongue virus (BTV), the causative agent of a major vector-borne disease of ruminants that has emerged multiple times in Europe in recent decades. In order to determine the importance of climatic, landscape and host-related factors affecting BTV diffusion across Europe, we fitted different phylogeographic models to a dataset of 113 time-stamped and geo-referenced BTV genomes, representing multiple strains and serotypes. Diffusion models using continuous space revealed that terrestrial habitat below 300 m altitude, wind direction and higher livestock densities were associated with faster BTV movement. Results of discrete phylogeographic analysis involving generalized linear models broadly supported these findings, but varied considerably with the level of spatial partitioning. Contrary to common perception, we found no evidence for average temperature having a positive effect on BTV diffusion, though both methodological and biological reasons could be responsible for this result. Our study provides important insights into the drivers of BTV transmission at the landscape scale that could inform predictive models of viral spread and have implications for designing control strategies.
(3011) Mary Winifred Hirst
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Accuracy of Capsule Colonoscopy in Detecting Colorectal Polyps in a Screening Population
Creators: name: Fernandez-Urien Sainz, Ignacio
name: Morgan, Doug
name: Fern, Steven E.
name: Papageorgiou, Neofytos
name: Lahat, Adi
name: Horlander, John C.
name: Kariv, Revital
name: Adler, Samuel N.
name: Fein, Steven A.
name: Isaacs, Kim L.
name: Romeo, David P.
name: Malik, Pramod R.
name: Rex, Douglas K.
name: Leung, Wai Keung
name: Waterman, Matti
name: Gal, Eyal
name: Carretero, Cristina
name: Aisenberg, James
name: Shah, Smita S.
name: Burch, Wilmot C.
name: Chowers, Yehuda
name: Fich, Alexander
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: BACKGROUND & AIMS: Capsule colonoscopy is a minimally invasive imaging method. We measured the accuracy of this technology in detecting polyps 6 mm or larger in an average-risk screening population.

METHODS: In a prospective study, asymptomatic subjects (n = 884) underwent capsule colonoscopy followed by conventional colonoscopy (the reference) several weeks later, with an endoscopist blinded to capsule results, at 10 centers in the United States and 6 centers in Israel from June 2011 through April 2012. An unblinded colonoscopy was performed on subjects found to have lesions 6 mm or larger by capsule but not conventional colonoscopy.

RESULTS: Among the 884 subjects enrolled, 695 (79%) were included in the analysis of capsule performance for all polyps. There were 77 exclusions (9%) for inadequate cleansing and whole-colon capsule transit time fewer than 40 minutes, 45 exclusions (5%) before capsule ingestion, 15 exclusions (2%) after ingestion and before colonoscopy, and 15 exclusions (2%) for site termination. Capsule colonoscopy identified subjects with 1 or more polyps 6 mm or larger with 81% sensitivity (95% confidence interval [CI], 77%-84%) and 93% specificity (95% CI, 91%-95%), and polyps 10 mm or larger with 80% sensitivity (95% CI, 74%-86%) and 97% specificity (95% CI, 96%-98%). Capsule colonoscopy identified subjects with 1 or more conventional adenomas 6 mm or larger with 88% sensitivity (95% CI, 82%-93) and 82% specificity (95% CI, 80%-83%), and 10 mm or larger with 92% sensitivity (95% CI, 82%-97%) and 95% specificity (95% CI, 94%-95%). Sessile serrated polyps and hyperplastic polyps accounted for 26% and 37%, respectively, of false-negative findings from capsule analyses.

CONCLUSIONS: In an average-risk screening population, technically adequate capsule colonoscopy identified individuals with 1 or more conventional adenomas 6 mm or larger with 88% sensitivity and 82% specificity. Capsule performance seems adequate for patients who cannot undergo colonoscopy or who had incomplete colonoscopies. Additional studies are needed to improve capsule detection of serrated lesions. Clinicaltrials.gov number: NCT01372878.
The Effect of Orbital Angular Momentum on Nondiffracting Ultrashort Optical Pulses
Creators: name: Ornigotti, Marco
name: Conti, Claudio
name: Szameit, Alexander
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce a new class of nondiffracting optical pulses possessing orbital angular momentum. By generalizing the X-waves solution of the Maxwell equation, we discover the coupling between angular momentum and the temporal degrees of freedom of ultra-short pulses. The spatial twist of propagation invariant light pulse turns out to be directly related to the number of optical cycles. Our results may trigger the development on novel multi-level classical and quantum transmission channels free of dispersion and diffraction, may also find application in the manipulation of nano-structured objects by ultra-short pulses, and for novel approaches to the spatio-temporal measurements in ultrafast photonics.
Peripheral vision in the silent reading of children
Creators: name: Carrington, Evelyn M.
Publisher: name: The University of Texas at Austin
Year: 1930
Subjects: subject: Silent reading
subject: Child reading
subject: Peripheral vision
subject: Peripheral stimuli
subject: Physiological aspects
subject: Reading
subject: Child silent reading
subject: Child reading activities
subject: Reading speed
subject: Reading comprehension
subject: Children's reading
subject: Peripheral visual stimuli
subject: Reading and peripheral vision
subject: Silent reading--Physiological aspects
subject: Children--Books and reading--Physiological aspects
subject: Peripheral vision

description: How peripheral visual stimuli affect the silent reading of children is a question which has received little attention in previous investigations. The present study is an attempt to investigate four phases of this problem: first, the extent to which peripheral visual stimuli are factors in the reading activities of children; second, the relation of speed and comprehension to the response of children to peripheral visual stimulation; third, differences in the use of peripheral visual stimulation found with differences in sex, grade classification, and reading grade; and fourth, the presence or absence of developmental stages in the use of peripheral visual stimuli in children of different chronological ages, reading ages, and reading quotients
A possible explanation for the twin paradox and action at a distance.docx
Creators: name: Qin, Sheng
Publisher: name: figshare
Year: 2022
Subjects: subject: 20203 Particle Physics
subject: FOS: Physical sciences
subject: Quantum Mechanics
subject: Special Relativity

description: This paper is mainly based on a stricter premise of the twin paradox and the assumption of inertial frame, discusses the properties of time and space under the premise of complete symmetry, and draws an interesting conclusion: the simultaneity of different reference frames is possible Realized, the space is relatively independent. And based on this, the twin paradox, cosmic inflation, ultra-distance action of quantum entanglement, microscopic space motion of particles, measurement problems and other phenomena are tentatively explained from a new angle. This interpretation is exploratory and new. At the same time, the author also proposes an experimental way to test the relative independence of space.
Comparing different indicators of quasar orientation
Creators: name: Van Gorkom, Kyle J.
name: Wardle, John F. C.
name: Rauch, Andreas P.
name: Gobeille, Doug B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Radio core dominance, the rest-frame ratio of core to lobe luminosity, has been widely used as a measure of Doppler boosting of a quasar's radio jets and hence of the inclination of the central engine's spin axis to the line of sight. However, the use of the radio lobe luminosity in the denominator (essentially to try and factor out the intrinsic power of the central engine) has been criticized and other proxies for the intrinsic engine power have been proposed. These include the optical continuum luminosity, and the luminosity of the narrow-line region. Each is plausible, but so far none has been shown to be clearly better than the others. In this paper we evaluate four different measures of core dominance using a new sample of 126 radio loud quasars, carefully selected to be as free as possible of orientation bias, together with high quality VLA images and optical spectra from the SDSS. We find that normalizing the radio core luminosity by the optical continuum luminosity yields a demonstrably superior orientation indicator. In addition, by comparing the equivalent widths of broad emission lines in our orientation-unbiased sample to those of sources in the MOJAVE program, we show that the beamed optical synchrotron emission from the jets is not a significant component of the optical continuum for the sources in our sample. We also discuss future applications of these results.
description: 8 pages, 4 figures. Accepted for publication in the Monthly Notices of the Royal Astronomical Society
Diagnostic Performance of Optical Coherence Tomography Ganglion Cell–Inner Plexiform Layer Thickness Measurements in Early Glaucoma
Creators: name: Godfrey, David G.
name: Budenz, Donald L.
name: Neelakantan, Arvind
name: Lee, Richard K.
name: Chang, Robert T.
name: Mwanza, Jean Claude
name: Sayyad, Fouad E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: PURPOSE: To evaluate the glaucoma diagnostic performance of ganglion cell inner-plexiform layer (GCIPL) parameters used individually and in combination with retinal nerve fiber layer (RNFL) or optic nerve head (ONH) parameters measured with Cirrus HD-OCT (Carl Zeiss Meditec, Inc, Dublin, CA).

DESIGN: Prospective cross-sectional study.

PARTICIPANTS: Fifty patients with early perimetric glaucoma and 49 age-matched healthy subjects.

METHODS: Three peripapillary RNFL and 3 macular GCIPL scans were obtained in 1 eye of each participant. A patient was considered glaucomatous if at least 2 of the 3 RNFL or GCIPL scans had the average or at least 1 sector measurement flagged at 1% to 5% or less than 1%. The diagnostic performance was determined for each GCIPL, RNFL, and ONH parameter as well as for binary or-logic and and-logic combinations of GCIPL with RNFL or ONH parameters.

MAIN OUTCOME MEASURES: Sensitivity, specificity, positive likelihood ratio (PLR), and negative likelihood ratio (NLR).

RESULTS: Among GCIPL parameters, the minimum had the best diagnostic performance (sensitivity, 82.0%; specificity, 87.8%; PLR, 6.69; and NLR, 0.21). Inferior quadrant was the best RNFL parameter (sensitivity, 74%; specificity, 95.9%; PLR, 18.13; and NLR, 0.27), as was rim area (sensitivity, 68%; specificity, 98%; PLR, 33.3; and NLR, 0.33) among ONH parameters. The or-logic combination of minimum GCIPL and average RNFL provided the overall best diagnostic performance (sensitivity, 94%; specificity, 85.7%; PRL, 6.58; and NLR, 0.07) as compared with the best RNFL, best ONH, and best and-logic combination (minimum GCIPL and inferior quadrant RNFL; sensitivity, 64%; specificity, 100%; PLR, infinity; and NPR, 0.36).

CONCLUSIONS: The binary or-logic combination of minimum GCIPL and average RNFL or rim area provides better diagnostic performances than those of and-logic combinations or best single GCIPL, RNFL, or ONH parameters. This finding may be clinically valuable for the diagnosis of early glaucoma.
DORMIR ES DE PATOS RODRIGO CORTES GIRALDEZ ePub gratis
Creators: name: Gabriel
Publisher: name: Zenodo
Year: 2024

description: DORMIR ES DE PATOS de RODRIGO CORTES GIRALDEZ

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Ficha técnica

DORMIR ES DE PATOS

RODRIGO CORTES GIRALDEZ

Número de páginas: 160

Idioma: CASTELLANO

Formatos: Pdf, ePub, MOBI, FB2

ISBN: 9788415739142

Editorial: DELIRIO

Año de edición: 2015

 

 

 

 

 

Libros en pdf para descarga móvil. DORMIR ES DE PATOS

 

Overview

Celebrémoslo: ¡a las tres vuelven a ser las dos!Rodrigo Cortés regresa con una nueva selección de sus memorables breverías, agudas, mordaces, engañosamente ligeras, socarronas, divertidas y siempre inteligentes.En la tradición del Ambrose Bierce más irónico y de las más afiladas antologías de Lichtenberg, Dormir es de patos destila un desencanto sordo ante la realidad que Rodrigo Cortés lleva con envidiable humor. Rebosa crítica («Muchos puestos de trabajo son prescindibles; por ejemplo: los de los demás», «¿Quién es la que está cayendo?»); llamadas de atención («¡Dadme autobombo!», «Es una lástima que no haya que pagar por opinar»); dardos envenenados («Una vez puse la radio en agosto, no me gusta hablar de ello», «Escucho emisoras de tendencias diferentes para fundar mejor mis prejuicios»); esclarecimientos («Sugerir es ordenar bajito», «La mente es un campo minado, y, si no, es un campo vacío»); guiños al cine («Hay películas que te ven a ti», «El hombre, como el cine, es asombro y espanto»), y mucha guasa («No es alcoholismo si no pagas tú», «Poco se reconoce la contribución de las misses a la paz mundial»).La lúcida mirada de Rodrigo Cortés, que comprime la verdad en píldoras llenas de brillantez para enfrentarnos a nuestros absurdos, corre suelta de página en página y hace explotar, a cada segundo, una de sus bombas de mano.¿Es el delirio de Rodrigo Cortés cuadrado o, simplemente, redondo? ¡«Acomplejados vitamínicos» para todos!
Non-publication of large randomized clinical trials: cross sectional analysis
Creators: name: Crowell, Karen E.
name: Jones, Christopher W.
name: Platts-Mills, Timothy F.
name: Keil, Lukas G.
name: Handler, Lara
name: Weaver, Mark A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Objective To estimate the frequency with which results of large randomized clinical trials registered with ClinicalTrials.gov are not available to the public.Design Cross sectional analysisSetting Trials with at least 500 participants that were prospectively registered with ClinicalTrials.gov and completed prior to January 2009.Data sources PubMed, Google Scholar, and Embase were searched to identify published manuscripts containing trial results. The final literature search occurred in November 2012. Registry entries for unpublished trials were reviewed to determine whether results for these studies were available in the ClinicalTrials.gov results database.Main outcome measures The frequency of non-publication of trial results and, among unpublished studies, the frequency with which results are unavailable in the ClinicalTrials.gov database.Results Of 585 registered trials, 171 (29%) remained unpublished. These 171 unpublished trials had an estimated total enrollment of 299 763 study participants. The median time between study completion and the final literature search was 60 months for unpublished trials. Non-publication was more common among trials that received industry funding (150/468, 32%) than those that did not (21/117, 18%), P=0.003. Of the 171 unpublished trials, 133 (78%) had no results available in ClinicalTrials.gov.Conclusions Among this group of large clinical trials, non-publication of results was common and the availability of results in the ClinicalTrials.gov database was limited. A substantial number of study participants were exposed to the risks of trial participation without the societal benefits that accompany the dissemination of trial results.
MIntRec: A New Dataset for Multimodal Intent Recognition
Creators: name: Zhang, Hanlei
name: Xu, Hua
name: Wang, Xin
name: Zhou, Qianrui
name: Zhao, Shaojie
name: Teng, Jiayan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Multimodal intent recognition is a significant task for understanding human language in real-world multimodal scenes. Most existing intent recognition methods have limitations in leveraging the multimodal information due to the restrictions of the benchmark datasets with only text information. This paper introduces a novel dataset for multimodal intent recognition (MIntRec) to address this issue. It formulates coarse-grained and fine-grained intent taxonomies based on the data collected from the TV series Superstore. The dataset consists of 2,224 high-quality samples with text, video, and audio modalities and has multimodal annotations among twenty intent categories. Furthermore, we provide annotated bounding boxes of speakers in each video segment and achieve an automatic process for speaker annotation. MIntRec is helpful for researchers to mine relationships between different modalities to enhance the capability of intent recognition. We extract features from each modality and model cross-modal interactions by adapting three powerful multimodal fusion methods to build baselines. Extensive experiments show that employing the non-verbal modalities achieves substantial improvements compared with the text-only modality, demonstrating the effectiveness of using multimodal information for intent recognition. The gap between the best-performing methods and humans indicates the challenge and importance of this task for the community. The full dataset and codes are available for use at https://github.com/thuiar/MIntRec.
description: Accepted by ACM MM 2022 (Main Track, Long Paper)
Identification of excitons, trions and biexcitons in single-layer WS2
Creators: name: Plechinger, Gerd
name: Nagler, Philipp
name: Kraus, Julia
name: Paradiso, Nicola
name: Strunk, Christoph
name: Schüller, Christian
name: Korn, Tobias
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: dichalcogenides, WS2, photoluminescence, excitons, trions, biexcitons, direct-gap semiconductors
subject: 530 Physik

description: Single-layer WS2 is a direct-gap semiconductor showing strong excitonic photoluminescence features in the visible spectral range. Here, we present temperature-dependent photoluminescence measurements on mechanically exfoliated single-layer WS2, revealing the existence of neutral and charged excitons at low temperatures as well as at room temperature. By applying a gate voltage, we can electrically control the ratio of excitons and trions and assert a residual n-type doping of our samples. At high excitation densities and low temperatures, an additional peak at energies below the trion dominates the photoluminescence, which we identify as biexciton emission. (© 2015 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim)
First-principles analysis of intravalley and intervalley electron-phonon scattering in thermoelectric materials
Creators: name: Askarpour, Vahid
name: Maassen, Jesse
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Intervalley collisions, which scatter electrons from one valley or band to another, can be detrimental to thermoelectric performance in materials with multiple valleys/bands. In this study, density functional theory is used to investigate the electron-phonon scattering characteristics of three lead chalcogenides (PbS, PbSe, PbTe) and three half-Heuslers (ScNiBi, ScPdSb, ZrNiSn), which all possess multiple equivalent conduction valleys, in order to characterize and analyze their intravalley/intervalley components. To elucidate what controls the degree of intravalley and intervalley transitions, the scattering rates are decomposed into the product of the phase space (a measure of how much scattering is possible) and the average electron-phonon coupling. To help guide the search for improved thermoelectric and high-conductivity materials, simple and approximate approaches are demonstrated that can be adopted to identify materials with reduced intervalley scattering, which circumvent the need for computationally-demanding electron-phonon scattering calculations. In addition, the benefits of selecting materials with large-energy zone-edge phonons are explored in the limit $\hbarω\gg k_BT$, and found to potentially suppress intervalley processes by up to an order of magnitude, leading to a 70% and 100% increase in conductivity and power factor, respectively.
description: 13 pages, 9 figures
Figure S4 from Bluetongue virus spread in Europe is a consequence of climatic, landscape and vertebrate host factors as revealed by phylogeographic inference
Creators: name: Jacquot, Maude
name: Nomikou, Kyriaki
name: Palmarini, Massimo
name: Mertens, Peter
name: Biek, Roman
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Spatio-temporal patterns of the spread of infectious diseases are commonly driven by environmental and ecological factors. This is particularly true for vector-borne diseases because vector populations can be strongly affected by host distribution as well as by climatic and landscape variables. Here, we aim to identify environmental drivers for bluetongue virus (BTV), the causative agent of a major vector-borne disease of ruminants that has emerged multiple times in Europe in recent decades. In order to determine the importance of climatic, landscape and host-related factors affecting BTV diffusion across Europe, we fitted different phylogeographic models to a dataset of 113 time-stamped and geo-referenced BTV genomes, representing multiple strains and serotypes. Diffusion models using continuous space revealed that terrestrial habitat below 300 m altitude, wind direction and higher livestock densities were associated with faster BTV movement. Results of discrete phylogeographic analysis involving generalized linear models broadly supported these findings, but varied considerably with the level of spatial partitioning. Contrary to common perception, we found no evidence for average temperature having a positive effect on BTV diffusion, though both methodological and biological reasons could be responsible for this result. Our study provides important insights into the drivers of BTV transmission at the landscape scale that could inform predictive models of viral spread and have implications for designing control strategies.
Descargar [PDF] {EPUB} MACMILLAN READERS ELEMENTARY: FRANKENSTEIN PACK
Creators: name: Kroon
Publisher: name: Zenodo
Year: 2024

description: MACMILLAN READERS ELEMENTARY: FRANKENSTEIN PACK de MARY SHELLEY

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MACMILLAN READERS ELEMENTARY: FRANKENSTEIN PACK

MARY SHELLEY

Número de páginas: 72

Idioma: INGLÉS

Formatos: Pdf, ePub, MOBI, FB2

ISBN: 9781405076500

Editorial: MACMILLAN HEINEMANN

Año de edición: 2005

 

 

 

 

 

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Overview

A retold version of one of the most famous and inventive horror stories ever written.
(3012) William Coates
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Beam Profiling with Noise Reduction From Computer Vision and Principal Component Analysis for the MAGIS-100 Experiment
Creators: name: Jachinowski, Joseph
name: Sachdeva, Natasha
name: Kovachy, Tim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: MAGIS-100 is a long-baseline atom interferometer that operates as a quantum sensor. It will search for dark matter, probe fundamental quantum science, and serve as a prototype gravitational wave detector in the 0.3 to 3~Hz frequency range. The experiment uses light-pulse atom interferometry where pulses of light create the atom optics equivalents of beamsplitters and mirrors. Laser beam aberrations are a key source of systematic error for MAGIS-100, and accurately characterizing the laser beam spatial profile is therefore essential. In this paper, we describe a new and efficient beam profiling technique. We use a low-cost CMOS camera affixed to a translating and rotating optomechanical mount to image the beam, then employ computer vision and principal component analysis to minimize background noise and produce accurate beam profiles for a laser incident on a variety of aberration-inducing optical elements.
description: 6 pages, 4 figures, 2021 IEEE Conference on Antenna Measurements & Applications (CAMA)
Figure S3 from Bluetongue virus spread in Europe is a consequence of climatic, landscape and vertebrate host factors as revealed by phylogeographic inference
Creators: name: Jacquot, Maude
name: Nomikou, Kyriaki
name: Palmarini, Massimo
name: Mertens, Peter
name: Biek, Roman
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Spatio-temporal patterns of the spread of infectious diseases are commonly driven by environmental and ecological factors. This is particularly true for vector-borne diseases because vector populations can be strongly affected by host distribution as well as by climatic and landscape variables. Here, we aim to identify environmental drivers for bluetongue virus (BTV), the causative agent of a major vector-borne disease of ruminants that has emerged multiple times in Europe in recent decades. In order to determine the importance of climatic, landscape and host-related factors affecting BTV diffusion across Europe, we fitted different phylogeographic models to a dataset of 113 time-stamped and geo-referenced BTV genomes, representing multiple strains and serotypes. Diffusion models using continuous space revealed that terrestrial habitat below 300 m altitude, wind direction and higher livestock densities were associated with faster BTV movement. Results of discrete phylogeographic analysis involving generalized linear models broadly supported these findings, but varied considerably with the level of spatial partitioning. Contrary to common perception, we found no evidence for average temperature having a positive effect on BTV diffusion, though both methodological and biological reasons could be responsible for this result. Our study provides important insights into the drivers of BTV transmission at the landscape scale that could inform predictive models of viral spread and have implications for designing control strategies.
Use of dietary linoleic acid for secondary prevention of coronary heart disease and death: evaluation of recovered data from the Sydney Diet Heart Study and updated meta-analysis
Creators: name: Leelarthaepin, Boonseng
name: Suchindran, Chirayath M.
name: Davis, John M.
name: Faurot, Keturah R.
name: Hibbeln, Joseph R.
name: Ringel, Amit
name: Ramsden, Christopher E.
name: Majchrzak-Hong, Sharon F.
name: Zamora, Daisy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Objective To evaluate the effectiveness of replacing dietary saturated fat with omega 6 linoleic acid, for the secondary prevention of coronary heart disease and death.Design Evaluation of recovered data from the Sydney Diet Heart Study, a single blinded, parallel group, randomized controlled trial conducted in 1966-73; and an updated meta-analysis including these previously missing data.Setting Ambulatory, coronary care clinic in Sydney, Australia.Participants 458 men aged 30-59 years with a recent coronary event.Interventions Replacement of dietary saturated fats (from animal fats, common margarines, and shortenings) with omega 6 linoleic acid (from safflower oil and safflower oil polyunsaturated margarine). Controls received no specific dietary instruction or study foods. All non-dietary aspects were designed to be equivalent in both groups.Outcome measures All cause mortality (primary outcome), cardiovascular mortality, and mortality from coronary heart disease (secondary outcomes). We used an intention to treat, survival analysis approach to compare mortality outcomes by group.Results The intervention group (n=221) had higher rates of death than controls (n=237) (all cause 17.6% v 11.8%, hazard ratio 1.62 (95% confidence interval 1.00 to 2.64), P=0.05; cardiovascular disease 17.2% v 11.0%, 1.70 (1.03 to 2.80), P=0.04; coronary heart disease 16.3% v 10.1%, 1.74 (1.04 to 2.92), P=0.04). Inclusion of these recovered data in an updated meta-analysis of linoleic acid intervention trials showed non-significant trends toward increased risks of death from coronary heart disease (hazard ratio 1.33 (0.99 to 1.79); P=0.06) and cardiovascular disease (1.27 (0.98 to 1.65); P=0.07).Conclusions Advice to substitute polyunsaturated fats for saturated fats is a key component of worldwide dietary guidelines for coronary heart disease risk reduction. However, clinical benefits of the most abundant polyunsaturated fatty acid, omega 6 linoleic acid, have not been established. In this cohort, substituting dietary linoleic acid in place of saturated fats increased the rates of death from all causes, coronary heart disease, and cardiovascular disease. An updated meta-analysis of linoleic acid intervention trials showed no evidence of cardiovascular benefit. These findings could have important implications for worldwide dietary advice to substitute omega 6 linoleic acid, or polyunsaturated fats in general, for saturated fats.Trial registration Clinical trials NCT01621087.
\b{eta}-delayed three-proton decay of 31Ar
Creators: name: Lis, A. A.
name: Mazzocchi, C.
name: Dominik, W.
name: Janas, Z.
name: Pfützner, M.
name: Pomorski, M.
name: Acosta, L.
name: Baraeva, S.
name: Casarejos, E.
name: Duénas-Díaz, J.
name: Dunin, V.
name: Espino, J. M.
name: Estrade, A.
name: Farinon, F.
name: Fomichev, A.
name: Geissel, H.
name: Gorshkov, A.
name: Kamiński, G.
name: Kiselev, O.
name: Knöbel, R.
name: Krupko, S.
name: Kuich, M.
name: Litvinov, Yu. A.
name: Marquinez-Durán, G.
name: Martel, I.
name: Mukha, I.
name: Nociforo, C.
name: Ordúz, A. K.
name: Pietri, S.
name: Prochazka, A.
name: Sánchez-Benítez, A. M.
name: Simon, H.
name: Sitar, B.
name: Slepnev, R.
name: Stanoiu, M.
name: Strmen, P.
name: Szarka, I.
name: Takechi, M.
name: Tanaka, Y.
name: Weick, H.
name: Winfield, J. S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The beta decay of 31Ar, produced by fragmentation of a 36Ar beam at 880 MeV/nucleon, was investigated. Identified ions of 31Ar were stopped in a gaseous time projection chamber with optical readout allowing to record decay events with emission of protons. In addition to \b{eta}-delayed emission of one and two protons we have clearly observed the beta-delayed three-proton branch. The branching ratio for this channel in 31Ar is found to be 0.07(2)%.
description: 5 pages, 3 figures, submitted to Physical Rev. C
Quantification of Quantum Correlations in Two-Beam Gaussian States Using Photon-Number Measurements
Creators: name: Barasinski, Artur
name: Perina, Jan
name: Cernoch, Antonin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Identification, and subsequent quantification of quantum correlations, is critical for understanding, controlling, and engineering quantum devices and processes. We derive and implement a general method to quantify various forms of quantum correlations using solely the experimental intensity moments up to the fourth order. This is possible as these moments allow for an exact determination of the global and marginal impurities of two-beam Gaussian fields. This leads to the determination of steering, tight lower and upper bounds for the negativity, and the Kullback-Leibler divergence used as a quantifier of state nonseparability. The principal squeezing variances are determined as well using the intensity moments. The approach is demonstrated on the experimental twin beams with increasing intensity and the squeezed super-Gaussian beams composed of photon pairs. Our method is readily applicable to multibeam Gaussian fields to characterize their quantum correlations.
description: 6 pages, 2 figures, extended version, some parts of version one moved to the Supplemental Material