cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Minimizar o aumento de temperatura em soluções POE (POWER OVER ETHERNET)
Creators: name: Perdiz, José Pedro Ferreira
Publisher: name: Neutro à Terra
Year: 2021

description: A tecnologia PoE (Power Over Ethernet) permite a transmissão de energia elétrica e de dados, em simultâneo, através do cabo de pares de cobre, eliminando a necessidade de infraestrutura elétrica, minimizando os custos de instalação. O conceito de Power Over Ethernet está forçosamente relacionado com Alexander Bell e a telefonia analógica, uma vez que o telefone é definido como um aparelho eletroacústico que permite a transformação de energia acústica em energia elétrica no emissor, e a transformação dessa energia elétrica em acústica no recetor; assim, é possível a troca de informação, falada e ouvida, entre dois ou mais assinantes. O sinal elétrico era comutado por uma central telefónica analógica que gerava uma corrente de chamada para uma linha analógica, linha essa que utilizava o cabo de cobre como meio de transmissão.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
Tree-Level Color-Kinematics Duality from Pure Spinor Actions
Creators: name: Borsten, Leron
name: Jurco, Branislav
name: Kim, Hyungrok
name: Macrelli, Tommaso
name: Saemann, Christian
name: Wolf, Martin
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We prove that the tree-level scattering amplitudes for (super) Yang-Mills theory in arbitrary dimensions and for M2-brane models exhibit color-kinematics (CK) duality. Our proof for Yang-Mills theory substantially simplifies existing ones in that it relies on the action alone and does not involve any computation; the proof for M2-brane models establishes this result for the first time. Explicitly, we combine the facts that Chern-Simons-type theories naturally come with a kinematic Lie algebra and that both Yang-Mills theory and M2-brane models are of Chern-Simons form when formulated in pure spinor space, extending previous work on Yang-Mills currents arXiv:2108.11708. Our formulation also provides explicit kinematic Lie algebras for the theories under consideration in the form of diffeomorphisms on pure spinor space. The pure spinor formulation of CK-duality is based on ordinary, cubic vertices, but we explain how ordinary CK-duality relates to notions of quartic-vertex 3-Lie algebra CK-duality for M2-brane models previously discussed in the literature.
description: 10 pages, expanded presentation, typos fixed, published version
Sistemas de condução de cabos nas ITED
Creators: name: Oliveira, César
Publisher: name: Neutro à Terra
Year: 2021

description: Fazem parte das ITED de um edifício: • os espaços para a instalação das redes de tubagem; • as redes de tubagem; • os sistemas de cablagem. A existência de uma rede de tubagens comum, que inicialmente poderá estar vazia, permite aos distintos operadores proporcionarem o seu serviço a cada fração, de uma maneira racional, económica e que não desmerece a estética do edifício. Com o objetivo de facilitar o acesso aos vários serviços de telecomunicações, dos vários operadores, a Unex oferece sistemas de condução de cabos flexíveis com as suas calhas em material isolante.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
Isotopes and Environments
Creators: name: Law, Matthew
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Charged black holes in Vaidya backgrounds: Hawking's Radiation
Creators: name: Ibohal, Ng.
name: Kapil, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we propose a class of embedded solutions of Einstein's field equations describing non-rotating Reissner-Nordstrom-Vaidya and rotating Kerr-Newman-Vaidya black holes.
description: 30 pages, latex file, no figures
Field evaluation of Sulficarb thermal desorption tubes during short-term, passive sampling of isoflurane in a university laboratory animal medicine facility
Creators: name: Barrack, Bonnie L
name: Benchoff, Edward
name: Schaal, Nicholas
name: Condie, Karyn
name: Stubner, Alex
Publisher: name: F1000 Research Limited
Year: 2019

description: Objective:  Investigate the level of agreement between two types of passive samplers (thermal desorption tubes and a conventional dosimeter) and an active sampling “gold standard” during short-term isoflurane sampling of animal surgeries in an University Laboratory Animal Medicine (LAM) facility.

Methods: Short-term (15 minute) passive sampling was performed in a veterinary operatory suite using Markes International Sulficarb thermal desorption tubes and Assay Technologies X574 passive dosimeter badges. Active sampling was performed using SKC Anasorb 747 sorbent tubes following OSHA Method 103 (Enflurane, Halothane, and Isoflurane).  A total of 23 sample sets (one of each sampler type) were collected.  A Bland-Altman test was performed to determine the level of agreement between sampler types.

Results: The Bland-Altman analysis determined ±50% (moderate) agreement between thermal desorption and passive sampling at lower concentrations (6.4-13.8 ppm) and ±35% (good) agreement between thermal desorption and active sampling at lower concentrations (3.8-11.7 ppm).  Thermal desorption tubes also achieved a lower Limit of Quantification (0.6 ppm) than did the conventional badges or active samples (1.5 ppm and 2 ppm, respectively).

Conclusion: Thermal desorption tubes were more effective than passive badges or active samples in reporting  low concentrations of isoflurane during 15 minute sampling.  The data suggest that thermal desorption tubes are a viable option for short-term exposure monitoring of isoflurane.  However, due to the high number of censored (non-detect) badge and active samples, this study should be repeated to validate the study findings.  If validated, thermal desorption tubes could potentially be considered as an alternative isoflurane sampling method within the Department of Defense.
Warm Dark Matter from Higher-Dimensional Gauge Theories
Creators: name: Paduroiu, Sinziana
name: Rios, Michael
name: Marrani, Alessio
name: Chester, David
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Warm dark matter particles with masses in the keV range have been linked with the large group representations in gauge theories through a high number of species at decoupling. In this paper, we address WDM fermionic degrees of freedom from such representations. Bridging higher-dimensional particle physics theories with cosmology studies and astrophysical observations, our approach is two-folded, i.e., it includes realistic models from higher-dimensional representations and constraints from simulations tested against observations. Starting with superalgebras in exceptional periodicity theories, we discuss several symmetry reductions and we consider several representations that accommodate a high number of degrees of freedom. We isolate a model that naturally accommodates both the standard model representation and the fermionic dark matter in agreement with both large and small-scale constraints. This model considers an intersection of branes in $D=27+3$ in a manner that provides the degrees of freedom for the standard model on one hand and 2048 fermionic degrees of freedom for dark matter, corresponding to a $\sim$2 keV particle mass, on the other. In this context, we discuss the theoretical implications and the observable predictions.
description: Published in MDPI Universe as part of the Special Issue keV Warm Dark Matter ({\Lambda}WDM) in Agreement with Observations in Tribute to H\'ector J. De Vega
The unacknowledged dangers of office archaeology
Creators: name: Archaeology, Allen
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Cabos coaxiais chegam mais longe com o ITED 4
Creators: name: Martins, Hélder Nelson Moreira
Publisher: name: Neutro à Terra
Year: 2021

description: O Novo Manual ITED 4 em vigor desde o dia 01 de abril de 2020 traz alterações significativas relativamente à edição ITED 3 anterior, sendo estas relevantes no que refere ao dimensionamento da tecnologia de cabo coaxial. O Cabo Coaxial é o elemento fundamental de uma rede de S/MATV ou CATV, sendo o responsável pela transmissão dos sinais de radio frequência. A atenuação que lhe é associada deverá ser a mais baixa possível, de forma a garantir a transmissão do sinal protelando a inclusão de etapas de amplificação na rede.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
Infrared behavior of the ghost propagator in the Landau gauge Yang-Mills theory
Creators: name: Kondo, Kei-Ichi
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We prove that the Faddeev-Popov ghost dressing function in the Yang-Mills theory is non-zero and finite in the limit of vanishing momenta and hence the ghost propagator behaves like free in the deep infrared regime, within the Gribov-Zwanziger framework of the $D$-dimensional SU(N) Yang-Mills theory in the Landau gauge for any $D>2$. This result implies that the Kugo-Ojima color confinement criterion is not satisfied in its original form. We point out that the result crucially depends on the explicit form of the non-local horizon term adopted. The original Gribov prediction in the Landau gauge should be reconsidered in connection with color confinement.
description: 22 pages, 2 figures, minor changes: typo corrected. Appendix A, B added. Sect. 4.1 rewritten. References added
The Gene of Scientific Success
Creators: name: Kong, Xiangjie
name: Zhang, Jun
name: Zhang, Da
name: Bu, Yi
name: Ding, Ying
name: Xia, Feng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Digital Libraries (cs.DL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper elaborates how to identify and evaluate causal factors to improve scientific impact. Currently, analyzing scientific impact can be beneficial to various academic activities including funding application, mentor recommendation, and discovering potential cooperators etc. It is universally acknowledged that high-impact scholars often have more opportunities to receive awards as an encouragement for their hard working. Therefore, scholars spend great efforts in making scientific achievements and improving scientific impact during their academic life. However, what are the determinate factors that control scholars' academic success? The answer to this question can help scholars conduct their research more efficiently. Under this consideration, our paper presents and analyzes the causal factors that are crucial for scholars' academic success. We first propose five major factors including article-centered factors, author-centered factors, venue-centered factors, institution-centered factors, and temporal factors. Then, we apply recent advanced machine learning algorithms and jackknife method to assess the importance of each causal factor. Our empirical results show that author-centered and article-centered factors have the highest relevancy to scholars' future success in the computer science area. Additionally, we discover an interesting phenomenon that the h-index of scholars within the same institution or university are actually very close to each other.
Following the Day of Archaeology
Creators: name: Green, Katie
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Two-Loop QCD Helicity Amplitudes for (2+1)-Jet Production in Deep Inelastic Scattering
Creators: name: Gehrmann, T.
name: Glover, E. W. N.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the two-loop QCD helicity amplitudes for the processes $l q \to l qg$ ($l \bar q \to l \bar q g$) and $l g \to l q\bar q$, which are the partonic reactions yielding $(2+1)$-jet final states in deep inelastic lepton nucleon scattering. The amplitudes are obtained by analytic continuation of the known helicity amplitudes for $e^+e^- \to q\bar q g$. We separate the infrared divergent and finite parts of the amplitudes using Catani's infrared factorization formula. The analytic results for the finite parts of the amplitudes are expressed in terms of one- and two-dimensional harmonic polylogarithms. To evaluate these functions numerically, we list in detail the non-trivial (and kinematic region dependent) variable transformations one needs to perform.
description: 10 pages, LaTeX, typos corrected and references added, FORM and FORTRAN files with the helicity amplitudes are enclosed with the manuscript sources
Acoustic Event Detection with Classifier Chains
Creators: name: Komatsu, Tatsuya
name: Watanabe, Shinji
name: Miyazaki, Koichi
name: Hayashi, Tomoki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper proposes acoustic event detection (AED) with classifier chains, a new classifier based on the probabilistic chain rule. The proposed AED with classifier chains consists of a gated recurrent unit and performs iterative binary detection of each event one by one. In each iteration, the event's activity is estimated and used to condition the next output based on the probabilistic chain rule to form classifier chains. Therefore, the proposed method can handle the interdependence among events upon classification, while the conventional AED methods with multiple binary classifiers with a linear layer and sigmoid function have placed an assumption of conditional independence. In the experiments with a real-recording dataset, the proposed method demonstrates its superior AED performance to a relative 14.80% improvement compared to a convolutional recurrent neural network baseline system with the multiple binary classifiers.
description: 5pages, presented at Interspeech2021
Contract museum archaeology in Sweden
Creators: name: Ni Chiobhain Enqvist, Delia
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Repensando Concursos Públicos: Um guia de orientação para pequenos e médios municípios -  do planejamento da força de trabalho à incorporação dos novos funcionários públicos
Creators: name: Coelho, Fernando
name: Celestino de Brito, Beatriz
name: Universidade de São Paulo
Publisher: name: Zenodo
Year: 2025
Subjects: Concursos Públicos
Pequenos e Médios Municípios
Ingresso no Setor `Público
Subsistemas
Planejamento da Força de Trabalho
Estágio Probatório
Recrutamento e Seleção

description: Com a retomada recente dos concursos públicos nas esferas federal (vide o Concurso Público Nacional Unificado) e estadual, bem como a necessidade de apoiar os pequenos e médios municípios em seus certames, preparamos este guia completo para orientar você, dirigente/gestor público local, no processo de seleção e recepção de novos servidores públicos no ciclo político 2025-2028 da sua prefeitura.

Nossa intenção aqui é apresentar alguns princípios e ferramentas gerenciais para que você possa realizar todo o processo do zero, de forma prática, descomplicada e focada na geração de resultados positivos. Tendo como fontes de inspiração as orientações fornecidas pelo Governo Federal em cartilha publicada em 2023, além das nossas pesquisas no nível municipal, buscamos adaptar e incrementar o conhecimento para a realidade das pequenas e médias prefeituras.

Para fins de organização, cada módulo do guia aborda uma etapa do sistema de ingresso no setor público; ao final de cada uma, você encontrará também questões para reflexão e alguns conteúdos complementares.

Em linhas gerais, este guia é um produto das nossas atividades de extensão universitária, aderente ao objetivo de desenvolvimento sustentável número dezessete (ODS 17 - Parcerias e Meios de Implementação).

Ao fim e ao cabo, nosso propósito é ajudar as prefeituras na implementação da Lei 14.965, de 2024, que estabelece diretrizes modernas para concursos públicos federais, podendo ser adotada pelos estados e municípios. Esperamos que aproveite a leitura!
Proposed lower bound for the shear viscosity to entropy density ratio in some dense liquids
Creators: name: Angilella, G. G. N.
name: March, N. H.
name: Pellegrino, F. M. D.
name: Pucci, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Starting from relativistic quantum field theories, Kovtun et al. (2005) have quite recently proposed a lower bound eta/s >= hbar /(4 pi kB), where eta is the shear viscosity and s the volume density of entropy for dense liquids. If their proposal can eventually be proved, then this would provide key theoretical underpinning to earlier semiempirical proposals on the relation between a transport coefficient eta and a thermodynamic quantity s. Here, we examine largely experimental data on some dense liquids, the insulators nitrogen, water, and ammonia, plus the alkali metals, where the shear viscosity eta(T) for the four heaviest alkalis is known to scale onto an `almost universal' curve, following the work of Tankeshwar and March a decade ago. So far, all known results for both insulating and metallic dense liquids correctly exceed the lower bound prediction of Kovtun et al.
description: to appear in Phys. Lett. A
Redes GPON (Gigabit Passive Optical Network)
Creators: name: Couto, José
Publisher: name: Neutro à Terra
Year: 2021

description: As redes de telecomunicações são para as empresas um investimento estratégico que se pretende “future-proof”. O investimento em redes de alto débito que permitam garantir a incorporação de serviços futuros com exigência de elevada largura de banda é assim crucial. Assegurar que a infraestrutura é um meio seguro, de elevada fiabilidade assume também fator decisivo. A diferenciação em mercados competitivo, a satisfação das expetativas dos utilizadores, consequente eficiência, produtividade e fidelização no caso por exemplo do sector da hospitalidade, são outros fatores determinantes. E por último, mas não menos importante, os aspetos económicos relativos ao investimento (CAPEX) e custos operacionais (OPEX) são naturalmente requisitos de elevada preponderância.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
The Past Sense Project: Pioneering Approaches to Therapeutic Archaeology
Creators: name: Jarrett, Kirsten
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Soluções Quitérios para redes de telecomunicações – caixas e armários – ITED 4
Creators: name: Quitérios, Fábrica De Quadros Elétricos
Publisher: name: Neutro à Terra
Year: 2021

description: O novo Manual ITED 4, que entrou em vigor a 01 de abril 2020, apresenta soluções inovadoras e simplifica alguns procedimentos com o objetivo de melhorar a eficiência e a adaptabilidade das infraestruturas de telecomunicações aos avanços tecnológicos. No novo Manual ITED 4 é possível verificar algumas alterações nos requisitos das caixas e armários para as infraestruturas de telecomunicações - nomeadamente ao nível das dimensões mínimas, dos equipamentos a instalar nos armários - bem como o aparecimento de novas caixas como, por exemplo, a CAM – Caixa de Acesso Multioperador. Tendo como foco principal o cumprimento dos requisitos normativos, aliado a uma capacidade inovadora no desenvolvimento de produtos, a Quitérios dispõe de soluções que respondem aos requisitos do novo Manual ITED 4.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
Case study of an energy-intensive consumer
Creators: name: Tavares, Inês Vieira
Publisher: name: Neutro à Terra
Year: 2021

description: The energy sector is one of the pillars of growth and development for industries and it has been increasing in the last decades. Due to the need of rationalizing energy in industries, the concept of energy efficiency arises. For a rational use of energy, it was created strategies and measures to reduce energy consumptions in a sustainable way – social, economic and environmental. To analyze these consumptions, this paper contains a case study of an energy intensive industrial installation. This study consists of analyzing all the energy consumptions of the installation, through the obtained values of energy indicators.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
Tratamentos sustentáveis e inovadores para a indústria da madeira
Creators: name: Tomaz, Kevin Duarte
Publisher: name: Neutro à Terra
Year: 2021

description: A madeira é um recurso natural e uma das matérias-primas mais utilizadas. É a base de um dos tradicionais setores industriais portugueses, com forte imponência a nível global. Devido ao seu alargado leque de aplicações, este material, conta como a base para variadíssimos projetos, que requerem o aparecimento de produtos que aliem a inovação e a criatividade de forma assegurar a sua crescente procura. É neste sentido que o trabalho descrito neste artigo se torna de grande relevo, pois prima pela preocupação ambiental, desenvolvimento empresarial e inovação no ramo industrial. Neste projeto procedeu-se à síntese e otimização de diferentes pigmentos fosforescentes que foram posteriormente aplicados na formulação de um novo revestimento para a madeira. Este novo revestimento permitirá a valorização deste material de construção que é tão apreciado pelos consumidores acrescentando-lhe caraterísticas únicas e inovadoras.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
DAY OF ARCHAEOLOGY - A VIEW FROM THE GERMAN ARCHAEOLOGICAL INSTITUTE
Creators: name: Krumme, Michael
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Online Scheduling of Time-Critical Tasks to Minimize the Number of Calibrations
Creators: name: Chen, Zuzhi
name: Zhang, Jialin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We study the online scheduling problem where the machines need to be calibrated before processing any jobs. To calibrate a machine, it will take $λ$ time steps as the activation time, and then the machine will remain calibrated status for $T$ time steps. The job can only be processed by the machine that is in calibrated status. Given a set of jobs arriving online, each of the jobs is characterized by a release time, a processing time, and a deadline. We assume that there is an infinite number of machines for usage. The objective is to minimize the total number of calibrations while feasibly scheduling all jobs. For the case that all jobs have unit processing times, we propose an $\mathcal{O}(λ)$-competitive algorithm, which is asymptotically optimal. When $λ=0$, the problem is degraded to rent minimization, where our algorithm achieves a competitive ratio of $3e+7(\approx 15.16)$ which improves upon the previous results for such problems.
Field-free orientation of CO molecules by femtosecond two-color laser fields
Creators: name: De, S.
name: Znakovskaya, I.
name: Ray, D.
name: Anis, F.
name: Johnson, Nora G.
name: Bocharova, I. A.
name: Magrakvelidze, M.
name: Esry, B. D.
name: Cocke, C. L.
name: Litvinyuk, I. V.
name: Kling, M. F.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report the first experimental observation of non-adiabatic field-free orientation of a heteronuclear diatomic molecule (CO) induced by an intense two-color (800 and 400 nm) femtosecond laser field. We monitor orientation by measuring fragment ion angular distributions after Coulomb explosion with an 800 nm pulse. The orientation of the molecules is controlled by the relative phase of the two-color field. The results are compared to quantum mechanical rigid rotor calculations. The demonstrated method can be applied to study molecular frame dynamics under field-free conditions in conjunction with a variety of spectroscopy methods, such as high-harmonic generation, electron diffraction and molecular frame photoemission.
Crafting Stories of the Past: Strathearn Environs and Royal Forteviot (SERF) project 2015
Creators: name: Poller, Tessa
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Rede de distribuição do Porto: interligação entre postos de transformação
Creators: name: Pereira, Miguel Alexandre Ferreira Alves
Publisher: name: Neutro à Terra
Year: 2021

description: Uma rede em desenvolvimento exige um contínuo esforço de otimização em termos de eficiência. Tal eficiência pode obter-se em diferentes domínios e de diferentes formas, nomeadamente através da redução de custos de operação dos sistemas de distribuição, da minimização de perdas de potência. No entanto tudo isto acontece com o objetivo de obter a melhor qualidade de serviço fornecida aos consumidores. Deste modo este artigo pretende abordar as especificidades presentes na rede de distribuição da cidade do Porto face a uma rede de distribuição convencional, com destaque às interligações entre postos de transformação de distribuição (PTD). Baseado nesta ideia foram estruturados cenários que pretendem simular as consequências na rede provenientes da interligação entre postos de transformação, com recurso à implementação do método Newton-Raphson (NR) no software Matlab.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
Co-representations of Hopf-von Neumann algebras on operator spaces other than column Hilbert space
Creators: name: Runde, Volker
Publisher: name: arXiv
Year: 2009
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 47L30, Secondary 16T10, 46L99, 47L25

description: Recently, M. Daws introduced a notion of co-representation of abelian Hopf--von Neumann algebras on general reflexive Banach spaces. In this note, we show that this notion cannot be extended beyond subhomogeneous Hopf--von Neumann algebras. The key is our observation that, for a von Neumann algebra $\M$ and a reflexive operator space $E$, the normal spatial tensor product $\M \bar{\tensor} \CB(E)$ is a Banach algebra if and only if $\M$ is subhomogeneous or $E$ is completely isomorphic to column Hilbert space.
description: 7 pages
Reminiscing about archaeology and the Tour de France
Creators: name: Cornellissen, Marcel
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Doping control of magnetic anisotropy for stable antiskyrmion formation in schreibersite (Fe,Ni)$_3$P with $S_4$ symmetry
Creators: name: Karube, Kosuke
name: Peng, Licong
name: Masell, Jan
name: Hemmida, Mamoun
name: von Nidda, Hans-Albrecht Krug
name: Kézsmárki, István
name: Yu, Xiuzhen
name: Tokura, Yoshinori
name: Taguchi, Yasujiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetic skyrmions, vortex-like topological spin textures, have attracted much interest in a wide range of research fields from fundamental physics to spintronics applications. Recently, growing attention has also been paid to antiskyrmions emerging in opposite topological charge in non-centrosymmetric magnets with $D_{2\mathrm{d}}$ or $S_4$ symmetry. In these magnets, complex interplay among anisotropic Dzyaloshinskii-Moriya interaction, uniaxial magnetic anisotropy, and magnetic dipolar interactions generates a variety of magnetic structures. However, the relation between the stability of antiskyrmions and these magnetic interactions remains to be elucidated. In this work, we control the uniaxial magnetic anisotropy of schreibersite (Fe,Ni)$_3$P with $S_4$ symmetry by doping and investigate its impact on the stability of antiskyrmions. Our magnetometry study, supported by ferromagnetic resonance spectroscopy, shows that the variation of the Ni content and slight doping with 4$d$ transition metals considerably change the magnetic anisotropy. In particular, doping with Pd induces easy-axis anisotropy, giving rise to formation of antiskyrmions, while a temperature-induced spin reorientation is observed in a Rh-doped compound. In combination with Lorentz transmission electron microscopy and micromagnetic simulations, we quantitatively analyze the stability of antiskyrmion as functions of uniaxial anisotropy and demagnetization energy, and demonstrate that subtle balance between them is necessary to stabilize the antiskyrmions.
description: This is a post-peer-review, pre-copyedit version of an article published in Advanced Materials (2022). The final authenticated version is available online at: https://onlinelibrary.wiley.com/doi/full/10.1002/adma.202108770
Intellectual Strabismus or being an archaeologist in 2015
Creators: name: Paterlini, Anna
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.brThe project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.brThe first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Model order selection for cascade autoregressive (CAR) models
Creators: name: Köhler, Steffen
Publisher: name: Technische Universität Dortmund
Year: 2021
Subjects: subject: cascade models
subject: cross-validation
subject: forecasting
subject: time-series modeling
subject: long-memory
subject: model selection
subject: HAR
subject: 310
subject: 330
subject: 620

description: In recent years, Cascade Autoregression (CAR) models enjoy increasing popularity in applied econometrics. This is due to the fact that they are able to approximate both short- and long-memory processes and are easy to implement. However, their model order, namely the timing of the steps, relies on ad-hoc decisions rather than being data-driven. In this paper, techniques for model order selection of CAR models in finite samples are presented. The approaches are evaluated in an extensive simulation study, as well as in an empirical application. The results suggest that model order selection may provide gains in both in- and out-of-sample performance.
description: Discussion Paper / SFB823;3/2021
From earth to light: photographic and documentary revelations
Creators: name: INRAP
Publisher: name: Archaeology Data Service
Year: 2015

description: This resource is a single blog post created as part of the Day of Archaeology initiative. The Day of Archaeology project aimed to provide a window into the daily lives of archaeologists from all over the world. The project asked people working, studying or volunteering in the archaeological world to participate in a 'Day of Archaeology' each year by recording their day and sharing it through text, images or video on the Day of Archaeology blog.
The project asked anyone with a personal, professional or voluntary interest in archaeology to get involved, and help highlight the reasons why archaeology is vital to protect the past and inform our futures. The resulting Day of Archaeology project archive demonstrates the wide variety of work the archaeological profession undertakes day-to-day across the globe, and helps to raise public awareness of the relevance and importance of archaeology to the modern world.
The first ever Day of Archaeology was held in 2011 and, since then, the project had thousands of archaeologists take part in the event, from those working in the field through to specialists working in laboratories and behind computers. The last Day of Archaeology was on Friday 28th July 2017.
Women and educational leadership : early experiences of Tasmanian women principals
Creators: name: Wood, D
Publisher: name: University Of Tasmania
Year: 2023

description: The research examines by means of a questionnaire survey early socialization influences upon thirty women who have reached the level of Principal in Tasmanian schools and who have become leaders in education. Their experiences and the factors influencing their career decisions were compared with twenty women teachers, working in either the same or similar schools, who have reached the top of the classroom teaching scale or AST1 level and so have the potential for further career advancement. The qualitative and quantative data were analysed using the software programme NUD-IST (Numerical, Unstructured Date, Indexing, Searching and Theorizing). Influences in the three domains of family, school and community were examined in relation to career development. The two groups were found to be different in the degree to which they impose self expectation at an early age upon themselves and were engaged in leadership activities in their local communities. While both the Principals and Teachers shared common perceptions of the expectations of others, the Principal's early expectations of themselves plus their responses to the high expectation of others, were particularly significant in their career development. The prevalent first born birth order characteristic of the women leaders noted in previous studies was not found to be significant. Both groups were influenced by inspirational teachers and generally enjoyed their schooling which helped shape their decisions to enter the teaching profession. Those who went on to become Principals were more likely to have taken advantage of the Education Department Studentship scheme and to have experienced leadership roles which had provided ''rehearsal\ opportunities for career leadership. On a personal level the women leaders proved to be more proactive in their own motivation and desire for career development. Both were supported by family members whilst the Principals enjoyed a more stable home environment. Since women comprise only a small proportion of School Principals in Tasmania their characteristics are of particular interest in the study of women leaders in education."
Short-circuit calculation on a small network
Creators: name: Afonso, José Alberto De Sousa
Publisher: name: Neutro à Terra
Year: 2021

description: In this paper will be presented the calculation of short current on a small network, using the method symmetrical components. The calculation will have in consideration the EN60909.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)
Degenerate diffusion with Preisach hysteresis
Creators: name: Gavioli, Chiara
name: Krejčí, Pavel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K65, 47J40, 74N30

description: Fluid diffusion in unsaturated porous media manifests strong hysteresis effects due to surface tension on the liquid-gas interface. We describe hysteresis in the pressure-saturation relation by means of the Preisach operator, which makes the resulting evolutionary PDE strongly degenerate. We prove the existence and uniqueness of a strong global solution in arbitrary space dimension using a special weak convexity concept.
description: 34 pages
Instalações elétricas em hospitais, clínicas privadas, centros médicos e Dentários, centros de tratamento e similares
Creators: name: Silva, Henrique Ribeiro Da
Publisher: name: Neutro à Terra
Year: 2021

description: Um aspeto essencial a que tem que se atender quando se projeta uma instalação elétrica diz respeito à utilização dos locais, i. e., o de saber qual a finalidade do local ou locais ou que tipo de atividade primordial vai ser desenvolvida aí. Do seu conhecimento irão depender as soluções técnicas a ponderar para garantir a segurança das pessoas e animais e a funcionalidade da instalação. Os locais médicos são locais especiais pelas características muito particulares dos seus ocupantes – os pacientes. Para que a segurança dos pacientes seja garantida é necessário garantir a segurança da instalação e o funcionamento correto dos equipamentos de electromedicina (EM) ligados aos mesmos, bem como prever uma manutenção adequada desses equipamentos. O uso de equipamentos de EM em pacientes submetidos a cuidados intensivos exige maior fiabilidade e segurança das instalações elétricas nos hospitais a fim de melhorar a segurança e a continuidade do fornecimento de energia.
description: Neutro à Terra, N.º 25 (2020): Revista Técnico-Científica (Primeiro Semestre)