cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The ethnographic possibility
Creators: name: Michalko, Rod
Publisher: name: University of British Columbia
Year: 2010

description: The following work is a formulation of ethnography, and as such, should not be conceived of as a characterization of, description of, or commentary upon ethnography. This is to say that ethnography is not conceived of here as subject matter, i.e., ethnography is not conceived of here as matter to be engaged descriptively. Instead, ethnography is conceived of here as a form of inquiry and so, our engagement with ethnography can be formulated as an engagement with inquiry. We understand ethnography as a concrete instance of inquiry that is conducted under the auspices of an authoritative version of inquiry. Further, we understand that any inquiry, including ethnography, forgets, in the Platonic sense, the authority under which it is done and from which it receives its possibility. In this sense, we do not address ethnography concretely, but instead we address ethnography analytically. This is to say that what we address is the analytic possibility of ethnography. Thus, we treat ethnography as a text, as speech, and our inquiry seeks to formulate the authority, the grounds, under which that speech is spoken. In this sense, we conceive of any speech, including our own speech, as simultaneously covering over its authoritative grounds and recommending those grounds as an authoritative version of inquiry. So we treat ethnography not concretely but as an occasion for us to display our grounds, our authoritative version of inquiry. Thus, what collects our work is a commitment to formulating the grounds of speech and thus a commitment to displaying that very commitment. In Chapter 1 we address the notion of speech and the essential distinction between speech and language. Chapters 2 and 3 are devoted to a discussion of the topicality and deep interest of speech. We then exemplify the argument presented in Chapters 1, 2 and 3 by addressing, more directly, the possibility of ethnography in Chapters 4, 5 and 6. Finally, Chapter 7 is given over to the formulation of the idea of inquiry itself.
Breaking the Limits of Message Passing Graph Neural Networks
Creators: name: Balcilar, Muhammet
name: Héroux, Pierre
name: Gaüzère, Benoit
name: Vasseur, Pascal
name: Adam, Sébastien
name: Honeine, Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.5.0; I.2.0
subject: 68T07

description: Since the Message Passing (Graph) Neural Networks (MPNNs) have a linear complexity with respect to the number of nodes when applied to sparse graphs, they have been widely implemented and still raise a lot of interest even though their theoretical expressive power is limited to the first order Weisfeiler-Lehman test (1-WL). In this paper, we show that if the graph convolution supports are designed in spectral-domain by a non-linear custom function of eigenvalues and masked with an arbitrary large receptive field, the MPNN is theoretically more powerful than the 1-WL test and experimentally as powerful as a 3-WL existing models, while remaining spatially localized. Moreover, by designing custom filter functions, outputs can have various frequency components that allow the convolution process to learn different relationships between a given input graph signal and its associated properties. So far, the best 3-WL equivalent graph neural networks have a computational complexity in $\mathcal{O}(n^3)$ with memory usage in $\mathcal{O}(n^2)$, consider non-local update mechanism and do not provide the spectral richness of output profile. The proposed method overcomes all these aforementioned problems and reaches state-of-the-art results in many downstream tasks.
description: 18 pages, 6 figures
МЕХАНИЗМЫ ВОЗДЕЙСТВИЯ ОКРУЖАЮЩЕЙ СРЕДЫ НА РЕСПИРАТОРНОЕ ЗДОРОВЬЕ ЧЕЛОВЕКА
Creators: name: Эрматова, Гульнара
Publisher: name: Zenodo
Year: 2025

description: В статье рассматриваются механизмы влияния факторов окружающей среды на респираторное здоровье человека. Анализируются основные загрязнители воздуха, их источники, а также статистические данные заболеваемости респираторными заболеваниями в мире. Приведены результаты исследований, демонстрирующие связь между уровнем загрязнения воздуха и ростом заболеваемости бронхиальной астмой, хронической обструктивной болезнью легких (ХОБЛ) и другими патологиями дыхательной системы. Представлены рекомендации по снижению негативного воздействия окружающей среды на респираторное здоровье населения.
title: Climate Change as a Global Challenge – and its Implications for Knowledge Generation and Dissemination
Creators: name: Klingenfeld, Daniel
name: Schellnhuber, Hans Joachim
Publisher: name: Max-Planck-Gesellschaft zur Förderung der Wissenschaften
Year: 2012

description: 31.1 The Global Character and Phenomenology of Climate Change
31.2 Responding to a Global Challenge with a Global Scientific Assessment Effort: The IPCC
31.3 Recent Findings in Climate Change Science Through World-Class Cooperation
31.4 From Insights to Actions: The Need for Global Governance and the Emergence of Local Action
31.5 The Limits to Science and Reason?
References
Footnotes
A Triangle Inequality for Cosine Similarity
Creators: name: Schubert, Erich
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Similarity search is a fundamental problem for many data analysis techniques. Many efficient search techniques rely on the triangle inequality of metrics, which allows pruning parts of the search space based on transitive bounds on distances. Recently, Cosine similarity has become a popular alternative choice to the standard Euclidean metric, in particular in the context of textual data and neural network embeddings. Unfortunately, Cosine similarity is not metric and does not satisfy the standard triangle inequality. Instead, many search techniques for Cosine rely on approximation techniques such as locality sensitive hashing. In this paper, we derive a triangle inequality for Cosine similarity that is suitable for efficient similarity search with many standard search structures (such as the VP-tree, Cover-tree, and M-tree); show that this bound is tight and discuss fast approximations for it. We hope that this spurs new research on accelerating exact similarity search for cosine similarity, and possible other similarity measures beyond the existing work for distance metrics.
title: Toward an Epistemic Web
Creators: name: Hyman, Malcolm D.
name: Renn, Jürgen
Publisher: name: Max-Planck-Gesellschaft zur Förderung der Wissenschaften
Year: 2012

description: 32.1 Introduction
32.2 What is Fundamentally New About the Web as a Knowledge Representation Technology?
32.3 What Are the Shortcomings of the Present-Day Web?
32.4 What Are the Options for Future Developments of the Web?
32.5 Knowledge: The Perspective of Historical Epistemology
32.6 A Short History of Knowledge Representation Technologies
32.7 Challenges for the Future of the Web
32.8 The Epistemic Web
Acknowledgments
References
Footnotes
Solar Cycle Evolution of Filaments over a Century: Investigations with the Meudon and McIntosh Hand-drawn Archives
Creators: name: Mazumder, Rakesh
name: Chatterjee, Subhamoy
name: Nandy, Dibyendu
name: Banerjee, Dipankar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Hand-drawn synoptic maps from the Meudon Observatory (1919 onwards) and the McIntosh archive (1967 onwards) are two important sources of long-term, manually recorded filament observations. In this study, we calibrate the Meudon maps and subsequently identify filaments through an automated method. We extract physical parameters from this filament database and perform a comparative study of their long-term evolution focusing on the cotemporal period of McIntosh and Meudon observations. The spatio-temporal evolution of filaments manifests in the form of a filament butterfly diagram, indicating further that they are intimately related to the large-scale solar cycle. Physical descriptors such as the number and length of filaments, which are tracers of solar surface magnetic field, have cycles which are phase-locked with the 11 year sunspot cycle. The tilt angle distribution of filaments - both near or distant from active region locations - indicates that their origin is due to either large-scale surface magnetic field or inter-active region field evolution. This study paves the way for constructing a composite series of hand-drawn filament data with minimal gaps stretching the time span of solar filament observations to a century. On the one hand, this would serve as useful constraints for models of magnetic field emergence and evolution on the Sun's surface over multiple solar cycles, and on the other hand, this filament database may be used to guide the reconstruction of filament-prominence associated eruptive events before the space age
description: Accepted for publication in ApJ; (18 pages, 13 figures)
Accelerating Spherical k-Means
Creators: name: Schubert, Erich
name: Lang, Andreas
name: Feher, Gloria
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Spherical k-means is a widely used clustering algorithm for sparse and high-dimensional data such as document vectors. While several improvements and accelerations have been introduced for the original k-means algorithm, not all easily translate to the spherical variant: Many acceleration techniques, such as the algorithms of Elkan and Hamerly, rely on the triangle inequality of Euclidean distances. However, spherical k-means uses Cosine similarities instead of distances for computational efficiency. In this paper, we incorporate the Elkan and Hamerly accelerations to the spherical k-means algorithm working directly with the Cosines instead of Euclidean distances to obtain a substantial speedup and evaluate these spherical accelerations on real data.
Additional file 1 of Identification of interventions to improve patient experienced quality of care in transitions between healthcare settings: a scoping review
Creators: name: Hindsbak, Natasia
name: Morsø, Lars
name: Hvidtjørn, Dorte
name: Walløe, Sisse
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Science Policy
Mental Health

description: Supplementary Material 1.
Infall Regions and Scaling Relations of X-ray Selected Groups
Creators: name: Rines, Kenneth
name: Diaferio, Antonaldo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the Fifth Data Release of the Sloan Digital Sky Survey to study X-ray-selected galaxy groups and compare their properties to clusters. We search for infall patterns around the groups and use these to measure group mass profiles to large radii. In previous work, we analyzed infall patterns for an X-ray-selected sample of 72 clusters from the ROSAT All-Sky Survey. Here, we extend this approach to a sample of systems with smaller X-ray fluxes selected from the 400 Square Degree serendipitous survey of clusters and groups in ROSAT pointed observations. We identify 16 groups with SDSS DR5 spectroscopy, search for infall patterns, and compute mass profiles out to 2-6 Mpc from the group centers with the caustic technique. No other mass estimation methods are currently available at such large radii for these low-mass groups, because the virial estimate requires dynamical equilibrium and the gravitational lensing signal is too weak. Despite the small masses of these groups, most display recognizable infall patterns. We use caustic and virial mass estimates to measure the scaling relations between different observables, extending these relations to smaller fluxes and luminosities than many previous surveys. Close inspection reveals that three of the groups are subclusters in the outskirts of larger clusters. A fourth group is apparently undergoing a group-group merger. These four merging groups represent the most extreme outliers in the scaling relations. Excluding these groups, we find $L_X\proptoσ_p^{3.4\pm1.6}$, consistent with previous determinations for both clusters and groups. Understanding cluster and group scaling relations is crucial for measuring cosmological parameters from clusters.
description: published in AJ Feb 2010, significantly revised in response to referee report, title edited
THE EFFECT OF HARMFUL SUBSTANCES IN ATMOSPHERIC AIR ON THE BODY OF AN ADULT POPULATION LIVING IN AN ENVIRONMENTALLY UNFAVORABLE INDUSTRIAL AREA
Creators: name: Hakimov, Tuymurod
Publisher: name: Zenodo
Year: 2025

description: A real assessment of the state of the environment in regions can be given by analyzing the state of health of the population. The immune system is a complex multi-competency system. Therefore, it is very sensitive to the influence of negative environmental factors. Almost any, even the most insignificant external influence on the human body leads to a change in the state of the immune system.
Generating Geodesic Flows and Supergravity Solutions
Creators: name: Bergshoeff, E.
name: Chemissany, W.
name: Ploegh, A.
name: Trigiante, M.
name: Van Riet, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the geodesic motion on the symmetric moduli spaces that arise after timelike and spacelike reductions of supergravity theories. The geodesics correspond to timelike respectively spacelike $p$-brane solutions when they are lifted over a $p$-dimensional flat space. In particular, we consider the problem of constructing \emph{the minimal generating solution}: A geodesic with the minimal number of free parameters such that all other geodesics are generated through isometries. We give an intrinsic characterization of this solution in a wide class of orbits for various supergravities in different dimensions. We apply our method to three cases: (i) Einstein vacuum solutions, (ii) extreme and non-extreme D=4 black holes in N=8 supergravity and their relation to N=2 STU black holes and (iii) Euclidean wormholes in $D\geq 3$. In case (iii) we present an easy and general criterium for the existence of regular wormholes for a given scalar coset.
description: Fixed a typo in table 3, page 27, results unchanged
Innovationen - wie Neues entsteht
Creators: name: Müller, Albert
name: Müller, Karl H.
Publisher: name: Österreichische Zeitschrift für Geschichtswissenschaften
Year: 2000

description: Österreichische Zeitschrift für Geschichtswissenschaften, Bd. 11 Nr. 1 (2000): Innovationen - Wie Neues entsteht
$\mathbf{{}^{12}{C} + {}^{12}{C}}$ Fusion $\boldsymbol{S^*}$-factor from a Full-microscopic Nuclear Model
Creators: name: Taniguchi, Yasutaka
name: Kimura, Masaaki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The ${}^{12}\mathrm{C} + {}^{12}\mathrm{C}$ fusion reaction plays a vital role in the explosive phenomena of the universe. The resonances in the Gamow window rule its reaction rate and products. Hence, the determination of the resonance parameters by nuclear models is indispensable as the direct measurement is not feasible. Here, for the first time, we report the resonances in the ${}^{12}\mathrm{C} + {}^{12}\mathrm{C}$ fusion reaction described by a full-microscopic nuclear model. The model plausibly reproduces the measured low-energy astrophysical $S$-factors and predicts the resonances in the Gamow window. Contradictory to the hindrance model, we conclude that there is no low-energy suppression of the $S$-factor.
description: 5 pages, 2 figures
Stochastic solutions of a class of Higher order Cauchy problems in $\rd$
Creators: name: Nane, Erkan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 60G99, 35C10

description: We study solutions of a class of higher order partial differential equations in bounded domains. These partial differential equations appeared first time in the papers of Allouba and Zheng \cite{allouba1}, Baeumer, Meerschaert and Nane \cite{bmn-07}, Meerschaert, Nane and Vellaisamy \cite{MNV}, and Nane \cite{nane-h}. We express the solutions by subordinating a killed Markov process by a hitting time of a stable subordinator of index $0
description: 26 pages
Quaternion typification of Clifford algebra elements
Creators: name: Shirokov, Dmitry
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 15A66

description: We present a new classification of Clifford algebra elements. Our classification is based on the notion of quaternion type. Using this classification we develop a method for analyzing of commutators and anticommutators of Clifford algebra elements. This method allows us to find out and prove a number of new properties of Clifford algebra elements.
description: 14 pages
Frustrated Further-Neighbor Antiferromagnetic and Electron-Hopping Interactions in the d=3 tJ Model: Finite-Temperature Global Phase Diagrams from Renormalization-Group Theory
Creators: name: Kaplan, C. Nadir
name: Berker, A. Nihat
name: Hinczewski, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The renormalization-group theory of the d=3 tJ model is extended to further-neighbor antiferromagnetic or electron-hopping interactions, including the ranges of frustration. The global phase diagram of each model is calculated for the entire ranges of temperatures, electron densities, and further/first-neighbor interaction strength ratios. In addition to the τ_{tJ} phase seen in earlier studies of the nearest-neighbor d=3 tJ model, the τ_{Hb} phase seen before in the d=3 Hubbard model appears both near and away from half-filling. These distinct τphases potentially correspond to different (BEC-like and BCS-like) superconducting phases.
description: Improved figures, added discussions, added references. Published version. 12 pages, 5 figures, 6 tables
Thermal conductivity of Magnesium Telluride (MgTe) -- A first principles study
Creators: name: Muthaiah, Rajmohan
name: Garg, Jivtesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, we report thermal conductivity(k) of magnesium telluride (MgTe) with various crystallographic phases such as rocksalt, zincblende, wurtzite and nickel arsenic (NiAs) using density functional theory and Boltzmann transport equation. Our first principles calculations results show the low thermal conductivity of MgTe with kNiAs < krocksalt < kwurtzite < kzincblende. We systematically investigated the phonon group velocity, phonon scattering rate and mode contributed thermal conductivity of transverse acoustic (TA), longitudinal acoustic (LA) and optical phonons. Our first principles calculations shows that ultra-low thermal conductivity of 2.645 Wm-1K-1 for NiAs phase is due to the dominant scattering of TA and LA phonons by low frequency optical phonons. We also analyzed the length dependence thermal conductivity of MgTe at nanometer length-scales. At nanometer length scales such as 50 nm for NiAs phase, room temperature thermal conductivity of less than 1.4 Wm-1K-1 shows a promising nature of MgTe for thermoelectric applications.
description: 12 pages, 7 figures. arXiv admin note: text overlap with arXiv:2101.12647
A aplicação de softwares de modelamento na petrologia metamórfica: metapelitos do Grupo Carrancas
Creators: name: Westin, Alice
name: Tedeschi, Mahyra
name: Campos Neto, Mario C.
name: Luvizotto, George L.
Publisher: name: Zenodo
Year: 2021
Subjects: Modelagem metamórfica
geotermobarometria
mapeamento composicional
Nappe Carrancas

description: Resumo O presente trabalho visa demonstrar a aplicação dos softwares XMapTools e Domino para o modelamento de rochas metassedimentares, a partir de mapas composicionais obtidos via microssonda eletrônica. As amostras analisadas pertencem ao Grupo Carrancas, na Nappe Carrancas, extremo sul do Orógeno Brasília. Os mapas obtidos para um St-Ky-Grt-Ms xisto do extremo sul da nappe indicam o crescimento progressivo dos porfiroblastos de granada, associado ao aumento das condições de temperatura e pressão. A composição varia de Alm0,75-0,77Prp0,08-0,09Grs0,07-0,10Sps0,02-0,05 no núcleo a Alm0,82-0,83Prp0,14Grs0,02-0,03Sps0,002-0,005 na borda. O diagrama de fases em equilíbrio obtido, aliado a isopletas XGrs, indica a estabilidade da paragênese associada ao núcleo da granada em 8,1-8,5 kbar de pressão e 568-578 ºC de temperatura. A paragênese de borda dos porfiroblastos registra condições P-T de 11,1-13,5 kbar e 595-624 ºC. Na região central da Nappe Carrancas, os porfiroblastos de granada de um St-Grt-Ms xisto também registram crescimento progressivo e contínuo, com composições variando de Alm0,77-0,80Prp0,08-0,12Grs0,03-0,04Sps0,07-0,10 no núcleo para Alm0,80-0,81Prp0,13-0,14Grs0,01-0,02Sps0,04 na borda. As condições metamórficas obtidas para as paragêneses associadas ao núcleo e borda da granada são de 6,2 kbar e 557 ºC e 9,6-13,2 kbar e 588-632 ºC, respectivamente. Tais resultados sugerem que as rochas analisadas foram submetidas a condições P-T compatíveis com a transição entre as fácies anfibolito superior e eclogito (borda dos porfiroblastos). Ademais, ambas amostras apresentam duas gerações de muscovita, Ms1 (sin-cinemática) e Ms2, identificadas nos mapas composicionais pela variação de XPg e XCel que sugerem a diminuição de temperatura de Ms1 para Ms2.
DIGITAL TRANSFORMATION IN THE MINISTRY OF INTERNAL AFFAIRS OF UZBEKISTAN AND ITS SIGNIFICANCE
Creators: name: Usmanov, Shakhzod
name: Aminova, Nargiza
Publisher: name: Zenodo
Year: 2025

description: The Ministry of Internal Affairs of the Republic of Uzbekistan is leveraging digital transformation to enhance its efficiency and ensure public safety. This article discusses the current state of digital technology adoption within the Ministry of Internal Affairs, focusing on the "Safe City" concept, the role of artificial intelligence (AI) and digital assistants (RaDYo), as well as the continuous development of digital literacy among law enforcement officers. It critically examines the contribution of digital systems to national security, the future potential of blockchain technology and "smart cities", and their impact on crime prevention and public safety.
Nonlinear Spinors as the Candidate of Dark Matter
Creators: name: Gu, Ying-Qiu
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper, we discuss the equation of state for nonlinear spinor gases in the context of cosmology. The mean energy momentum tensor is similar to that of the prefect fluid, but an additional function of state $W$ is introduced to describe the nonlinear potential. The equation of state $w(a)\lesssim -1$ in the early universe is calculated, which provides a natural explanation for the negative pressure of dark matter and dark energy. $W$ may be also the main origin of the cosmological constant $Λ$. So the nonlinear spinor gases may be a candidate for dark matter and dark energy.
description: 8 pages, no figures
A tafonomia em suportes rochosos com grafismos rupestres na região do Campos Gerais, Paraná
Creators: name: Souza, Tatiane de
name: Atencio, Daniel
Publisher: name: Zenodo
Year: 2021
Subjects: Tafonomia
Grafismo Rupestre
Microscopia Eletrônica
Arqueologia
Mineralogia

description: RESUMO – O propósito deste trabalho é reavaliar a tafonomia dos grafismos rupestres cujos estudos tiveram ímpeto a partir dos anos 1990. O método adotado foi fazer uma revisão extensa dos estudos das alterações de superfícies rochosas que comportam ou não comportam grafismos rupestres. As conclusões diferem significativamente da análise tradicional da estilística da produção de grafismos arqueológicos, criando-se a possibilidade de estudar as influências materiais na produção destes. Isto tem sido possível devido a uma segunda revolução tecnológica produzida durante o século XX que lançou o campo da mineralogia em inovações buscadas em fontes de luz síncrotron e microscopia eletrônica de transmissão (TEM). Gravuras, desenhos, pinturas, estênceis ou impressões foram feitas em superfícies rochosas de modo que sua execução está sujeita a uma série de condições ambientais e físicas, suscetíveis a uma variedade de impactos sobre os suportes rochosos ao longo do tempo, além dos fatores de influência antropogênica.
Strangers on a Commuter Train
Creators: name: Freedman, Alisa
Publisher: name: Austrian Journal of Historical Studies
Year: 2000

description: There were several transformations in early twentieth century Tokyo urban space and in the lives of its inhabitants. Many social and spatial movements converged on the train. New groups, such as female students and businessmen, emerged from and often epitomized ideological, educational, and economic changes of this time and commuted together from homes in the suburbs to work and school in the center of Tokyo. Electric trains were means of mass transportation, and sexes and classes mixed in passanger cars. Such vehicles were sites of urban behaviors and of seductions and could be viewed as synecdoche for the rapidly modernizing city itself. Trains were spaces for watching and for being watched, and female passengers were often the objects of the gaze. - These trends were vividly depicted in Tayama Katai's 1907 short sory The girl watcher (Shojo byo), a tale of how a salaryman's obsessive gawking at schoolgirls during his daily commutes causes him to fall to his gory death on the train tracks. The man watches women to seek comfort from his frustrations about leading a domestic and work live he feels he cannot improve. Moreover, the figure of the Meiji female student is examined in its historical context and its perception not only as the passive object of the gaze but also as actively (mis)behaving on trains. Modem women and mass transportation often appear together in late Meiji literature, and it is necessary to investigate them together to better understand the advances and contractions of Japanese modernity.
description: Austrian Journal of Historical Studies, Bd. 11 Nr. 2 (2000): gross stadt verkehr
Magmatismo máfico e félsico da região da Serra dos Carajás e suas relações com eventos de mineralizações do tipo IOCG: Aplicações inovadoras de geocronologia e geoquímica isotópica em exploração mineral
Creators: name: Capistrano, Gabriel G.
name: Tassinari, Colombro C.G.
Publisher: name: Zenodo
Year: 2021
Subjects: Diques máficos e félsicos
Província Mineral de Carajás
mineralizações IOCG
geocronologia U-Pb em zircão e badeleíta

description: RESUMO – A associação de mineralizações do tipo IOCG com diques máficos e félsicos que se encontram na Província Mineral de Carajás (PMC) é um elemento que pode ser de grande importância na compreensão da metalogênese de depósitos minerais nessa região. Entretanto, existem algumas dúvidas acerca da formação desses diques e seu papel na história de formação da PMC que já foram levantadas através de outras investigações realizadas pela literatura na área de estudo, como o papel desempenhado por eles ao longo das quarto eras nas quais eles se formaram (desde o Mesozoico até o Paleoproterozoico), os problemas gerados pela correlação com os eventos hidrotermais e os diques, além dos diversos e complexos eventos tectônicos e metamórficos e a intensidade dos processos de meteorização que afetaram a PMC ao longo de sua história. Este projeto tem por meta a caracterização petrográfica, geocronológica (U-Pb em zircão e badeleíta, mineral esse ainda não usado como ferramenta para este tipo de procedimento), geoquímica e de geoquímica isotópica (Pb-Pb e Sm-Nd em rocha total) aos diques máficos e félsicos relacionados às mineralizações do tipo IOCG na PMC, visando compreender o papel destes magmatismos na metalogenia da área de estudo. Inicialmente está sendo feita a revisão bibliográfica sobre a PMC, com o levantamento de mais informações disponíveis na literatura acerca da região. As amostras utilizadas para este estudo foram cedidas pela companhia VALE, coletadas em cinco depósitos minerais localizados na PMC. Todas as análises que serão realizadas com esssas amostras em seguida estão utilizando a estrutura de laboratórios existentes da Universidade de São Paulo. Ao final da confecção deste trabalho, com a aquisição e interpretação dos dados novos obtidos de geoquímica, geoquímica isotópica e geocronologia, espera-se que num âmbito inicial uma melhor e ampliada compreensão do papel dos diques máficos e félsicos na constituição da PMC, e, num escopo mais amplo, servir como mais uma fonte de informações para o desenvolvimento da prospecção e exploração mineral e, consquentemente, na descoberta de novos depósitos minerais na PMC.
Additional file 2 of “The only way that they can access help quickly”: a qualitative exploration of key stakeholders’ perspectives on guided self-help interventions for children and young people with eating disorders
Creators: name: Davey, Emily
name: Micali, Nadia
name: Bryant-Waugh, Rachel
name: Bennett, Sophie D
name: Lau, Charmayne
name: Shafran, Roz
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biological Sciences not elsewhere classified
Cancer
Science Policy
Mental Health

description: Supplementary Material 2
ВИЗУАЛЬНЫЕ СРЕДСТВА ОБУЧЕНИЯ КАК ИНСТРУМЕНТ РАЗВИТИЯ ПОЗНАВАТЕЛЬНОЙ АКТИВНОСТИ УЧАЩИХСЯ НАЧАЛЬНОЙ ШКОЛЫ
Creators: name: Болтаева, Шахноза
Publisher: name: Zenodo
Year: 2025

description: В статье рассматривается важность наглядных методов в образовательном процессе начальной школы, их влияние на когнитивный процесс младших школьников и результативность усвоения материала. Анализируются основные виды визуальных средств, аспекты их использования в начальных классах, а также международная практика использования. Особое интерес предоставлен реформам в образовательной системе Узбекистана и перспективам развития визуального обучения.
One-directional polarization transport in electron/nuclear spin chains with loss and gain
Creators: name: Bussandri, Santiago
name: Zangara, Pablo R.
name: Acosta, Rodolfo H.
name: Meriles, Carlos A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Understanding the joint dynamics of electron and nuclear spins is central to core concepts in solid-state magnetic resonance - such as spin-lattice relaxation and dynamic nuclear polarization - but a generalization that capitalizes on competing polarization loss and gain channels is still lacking. Here, we theoretically study the non-Hermitian dynamics of hybrid electron/nuclear spin systems in the simultaneous presence of electron spin pumping and spin-lattice relaxation. Focusing on periodic, one-dimensional chains, we find that by adjusting the electron spin pumping to a critical level, it is possible to steer the flow of nuclear polarization to create site-dependent distributions where either end of the array polarizes in opposite ways, irrespective of the initial state. By contrast, we show that ring-like patterns - where the limit nuclear polarization is uniform - exhibit a non-decaying, externally-driven nuclear spin current. Interestingly, cyclic magnetic field modulation can render these processes largely robust to defects in the chain, a response featuring some interesting similarities - and differences - with recent findings in other non-Hermitian physical platforms.
Additional file 3 of “The only way that they can access help quickly”: a qualitative exploration of key stakeholders’ perspectives on guided self-help interventions for children and young people with eating disorders
Creators: name: Davey, Emily
name: Micali, Nadia
name: Bryant-Waugh, Rachel
name: Bennett, Sophie D
name: Lau, Charmayne
name: Shafran, Roz
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biological Sciences not elsewhere classified
Cancer
Science Policy
Mental Health

description: Supplementary Material 3
Representation zeta functions of wreath products with finite groups
Creators: name: Bartholdi, Laurent
name: de la Harpe, Pierre
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 11M41; 20C15; 20E22

description: Let G be a group which has for all n a finite number r_n(G) of irreducible complex linear representations of dimension n. Let $ζ(G,s) = \sum_{n=1}^{\infty} r_n(G) n^{-s}$ be its representation zeta function. First, in case G is a permutational wreath product of H with a permutation group Q acting on a finite set X, we establish a formula for $ζ(G,s)$ in terms of the zeta functions of H and of subgroups of Q, and of the Moebius function associated with the lattice of partitions of X in orbits under subgroups of Q. Then, we consider groups W(Q,k) which are k-fold iterated wreath products of Q, and several related infinite groups W(Q), including the profinite group, a locally finite group, and several finitely generated groups, which are all isomorphic to a wreath product of themselves with Q. Under convenient hypotheses (in particular Q should be perfect), we show that r_n(W(Q)) is finite for all n, and we establish that the Dirichlet series $ζ(W(Q),s)$ has a finite and positive abscissa of convergence s_0. Moreover, the function $ζ(W(Q),s)$ satisfies a remarkable functional equation involving $ζ(W(Q),es)$ for e=1,...,|X|. As a consequence of this, we exhibit some properties of the function, in particular that $ζ(W(Q),s)$ has a singularity at s_0, a finite value at s_0, and a Puiseux expansion around s_0. We finally report some numerical computations for Q the simple groups of order 60 and 168.
description: 35 pages, amstex source
Third-party Evaluation of Robotic Hand Designs Using a Mechanical Glove
Creators: name: Kanai, Takayuki
name: Ohmura, Yoshiyuki
name: Nagakubo, Akihiko
name: Kuniyoshi, Yasuo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: A robotic hand design suitable for dexterity should be examined using functional tests. To achieve this, we designed a mechanical glove, which is a rigid wearable glove that enables us to develop the corresponding isomorphic robotic hand and evaluate its hardware properties. Subsequently, the effectiveness of multiple degrees-of-freedom (DOFs) was evaluated by human participants. Several fine motor skills were evaluated using the mechanical glove under two conditions: one- and three-DOF conditions. To the best of our knowledge, this is the first extensive evaluation method for robotic hand designs suitable for dexterity. (This paper was peer-reviewed and is the full translation from the Journal of the Robotics Society of Japan, Vol.39, No.6, pp.557-560, 2021.)
description: 5 pages, 7 figures
Distributional Schwarzschild Geometry from nonsmooth regularization via Horizon. Disributional Rindler spacetime with disributional Levi-Cività connection induced vacuum dominance.Unruh effect revisited
Creators: name: Foukzon, Jaykov
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper we leave the neighborhood of the singularity at the origin and turn to the singularity at the horizon. Using nonlinear superdistributional geometry and supergeneralized functions it seems possible to show that the horizon singularity is not only a coordinate singularity without leaving Schwarzschild coordinates. However the Tolman formula for the total energy $E$ of a static and asymptotically flat spacetime,gives $E=mc^2$, as it should be. New class Colombeau solutions to Einstein field equations is obtained.New class Colombeau solutions to Einstein field equations is obtained. The vacuum energy density of free scalar quantum field $Φ$ with a distributional background spacetime also is considered.It has been widely believed that, except in very extreme situations, the influence of acceleration on quantum fields should amount to just small, sub-dominant contributions. Here we argue that this belief is wrong by showing that in a Rindler distributional background spacetime with distributional Levi-Cività connection the vacuum energy of free quantum fields is forced, by the very same background distributional space-time such a Rindler distributional background space-time, to become dominant over any classical energy density component.This semiclassical gravity effect finds its roots in the singular behavior of quantum fields on a Rindler distributional space-times with distributional Levi-Cività connection. In particular we obtain that the vacuum fluctuations $$ have a singular behavior at a Rindler horizon $δ= 0$.Therefore sufficiently strongly accelerated observer burns up near the Rindler horizon. Thus Polchinski account does not violate of the Einstein equivalence principle.
description: 93 pages. arXiv admin note: substantial text overlap with arXiv:gr-qc/0112047, arXiv:gr-qc/9710072, arXiv:gr-qc/9707029, arXiv:gr-qc/9312028, arXiv:astro-ph/0012469 by other authors
Nonlinear Gravitational Waves: Their Form and Effects
Creators: name: Aldrovandi, R.
name: Pereira, J. G.
name: da Rocha, Roldao
name: Vu, K. H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A gravitational wave must be nonlinear to be able to transport its own source, that is, energy and momentum. A physical gravitational wave, therefore, cannot be represented by a solution to a linear wave equation. Relying on this property, the second-order solution describing such physical waves is obtained. The effects they produce on free particles are found to consist of nonlinear oscillations along the direction of propagation.
description: 15 pages, no figures. v2: presentation changes aiming at clarifying the text; matches published version
Additional file 1 of Consensus on innovations and future directions of community first responder schemes in United Kingdom: a national nominal group technique study
Creators: name: Patel, Gupteswar
name: Botan, Vanessa
name: Phung, Viet-Hai
name: Trueman, Ian
name: Hosseini, Mehrshad Parvin
name: Smith, Murray D.
name: Ørner, Roderick
name: Pattinson, Julie
name: Asghar, Zahid
name: Rowan, Elise
name: Spaight, Robert
name: Mortimer, Craig
name: Brewster, Amanda
name: Mountain, Pauline
name: Miller, Joshua
name: Brown, Martina
name: Siriwardena, Aloysius Niroshan
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 1.
WISDOM Project -- IX Giant Molecular Clouds in the Lenticular Galaxy NGC4429: Effects of Shear and Tidal Forces on Clouds
Creators: name: Liu, Lijie
name: Bureau, Martin
name: Blitz, Leo
name: Davis, Timothy A.
name: Onishi, Kyoko
name: Smith, Mark
name: North, Eve
name: Iguchi, Satoru
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present high spatial resolution (12pc) Atacama Large Millimeter/sub-millimeter Array CO(J=3-2) observations of the nearby lenticular galaxy NGC4429. We identify 217 giant molecular clouds within the 450pc radius molecular gas disc. The clouds generally have smaller sizes and masses but higher surface densities and observed linewidths than those of Milky Way disc clouds. An unusually steep size - line width relation and large cloud internal velocity gradients (0.05 - 0.91 km s^-1 pc^-1) and observed Virial parameters (alpha_obs,vir = 4.0) are found, that appear due to internal rotation driven by the background galactic gravitational potential. Removing this rotation, an internal Virial equilibrium appears to be established between the self-gravitational (Usg) and turbulent kinetic (Eturb) energies of each cloud, i.e. alpha_sg,vir=Usg/Eturb = 1.3. However, to properly account for both self and external gravity (shear and tidal forces), we formulate a modified Virial theorem and define an effective Virial parameter alpha_eff,vir = alpha_sg,vir + Usg/Eext (and associated effective velocity dispersion). The NGC4429 clouds then appear to be in a critical state in which the self-gravitational energy and the contribution of external gravity to the cloud's energy budget (Eext) are approximately equal, i.e. Eext/Usg~1. As such, alpha_eff,vir = 2.2 and most clouds are not virialised but remain marginally gravitationally bound. We show this is consistent with the clouds having sizes similar to their tidal radii and being generally radially elongated. External gravity is thus as important as self-gravity to regulate the clouds of NGC4429.
description: Accepted by MNRAS
Throughput Scaling of Wireless Networks With Random Connections
Creators: name: Cui, Shengshan
name: Haimovich, Alexander M.
name: Somekh, Oren
name: Poor, H. Vincent
name: Shamai, Shlomo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This work studies the throughput scaling laws of ad hoc wireless networks in the limit of a large number of nodes. A random connections model is assumed in which the channel connections between the nodes are drawn independently from a common distribution. Transmitting nodes are subject to an on-off strategy, and receiving nodes employ conventional single-user decoding. The following results are proven: 1) For a class of connection models with finite mean and variance, the throughput scaling is upper-bounded by $O(n^{1/3})$ for single-hop schemes, and $O(n^{1/2})$ for two-hop (and multihop) schemes. 2) The $Θ(n^{1/2})$ throughput scaling is achievable for a specific connection model by a two-hop opportunistic relaying scheme, which employs full, but only local channel state information (CSI) at the receivers, and partial CSI at the transmitters. 3) By relaxing the constraints of finite mean and variance of the connection model, linear throughput scaling $Θ(n)$ is achievable with Pareto-type fading models.
description: 13 pages, 4 figures, To appear in IEEE Transactions on Information Theory
Four-free groups and hyperbolic geometry
Creators: name: Culler, Marc
name: Shalen, Peter B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50

description: We give new information about the geometry of closed, orientable hyperbolic 3-manifolds with 4-free fundamental group. As an application we show that such a manifold has volume greater than 3.44. This is in turn used to show that if M is a closed orientable hyperbolic 3-manifold such that vol M < 3.44, then H_1(M;Z/2Z) has dimension at most 7.
description: 64 pages, 4 figures. This version corrects an error in the third paragraph of the proof of Lemma 13.3
Additional file 1 of Gastrointestinal adverse events of metformin treatment in patients with type 2 diabetes mellitus: a systematic review and meta-analysis with meta-regression of observational studies
Creators: name: Nabrdalik, Katarzyna
name: Hendel, Mirela
name: Irlik, Krzysztof
name: Kwiendacz, Hanna
name: Łoniewski, Igor
name: Bucci, Tommaso
name: Alam, Uazman
name: Lip, Gregory Y. H.
name: Gumprecht, Janusz
name: Skonieczna-Żydecka, Karolina
Publisher: name: figshare
Year: 2024
Subjects: Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Science Policy

description: Supplementary Material 1.
Temporary threshold shift following ear canal microsuction
Creators: name: Cronin, Trevor
name: Zhao, Fei
Publisher: name: Taylor & Francis
Year: 2020
Subjects: Medicine
Neuroscience
Biological Sciences not elsewhere classified
Science Policy
Mental Health

description: Objectives: To investigate a temporary threshold shift (TTS) of hearing and pain/discomfort caused by the microsuction procedure. Hearing loss induced by impacted cerumen was also investigated. Design: Impacted cerumen was removed from patients using microsuction. Hearing assessments were carried out before the procedure, immediately after and 1-week later. Hearing thresholds measured in different sessions were compared to determine the TTS caused by the microsuction procedure and hearing loss induced by impacted cerumen. A questionnaire was used to evaluate the pain/discomfort experienced by patients. Study Sample: 30 patients (50 ears) were recruited from a cerumen removal clinic. Results: Significant hearing loss caused by impacted earwax was found across individual frequencies (mean 11.4 dB, maximum 38.1 dB). A TTS appeared in 43/50 (86%) ears, ranging from 0 to 16.2 dB averaged across frequencies between 0.25 and 8 kHz, with the highest TTS at 6 kHz. Pain and discomfort levels were both rated low, the mean levels were 1.2 (SD = 0.5) and 1.6 (SD = 0.5) respectively on a scale from 1 to 10. Conclusions: Microsuction appears to be a well-tolerated and preferred procedure for removing impacted cerumen. Because of the significant TTS induced by the microsuction procedure, safety concerns from a hearing perspective should be raised with the patient.
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Solnon, Christine
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2022
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Computing methodologies → Artificial intelligence

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 235, 28th International Conference on Principles and Practice of Constraint Programming (CP 2022), pages 0:i-0:xviii
Additional file 5 of A large structural variant collection in Holstein cattle and associated database for variant discovery, characterization, and application
Creators: name: Grant, Jason R.
name: Herman, Emily K.
name: Barlow, Lael D.
name: Miglior, Filippo
name: Schenkel, Flavio S.
name: Baes, Christine F.
name: Stothard, Paul
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5. Sex chromosome SV visualized with SVDB-DC. The manta-30188 / smoove-65778 deletion, located on chromosome X, is shown in (A) female and (B) male samples. The selected sex (red box) restricts the genotype counts (orange box) and the BAM tracks to that sex. The “Genes (NCBI release 106)” track displays gene feature information from NCBI. The two horizontal lines in this track extending the width of the view represent an intron shared by two isoforms (or transcript variants) of the ATP1B4 (ATPase Na+/K+ transporting family member beta 4) gene. The remaining tracks show the Manta and Smoove SVs followed by the read alignment (BAM) tracks for a single sample from each genotype category.