cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Understanding angle-resolved polarized Raman scattering from black phosphorus at normal and oblique laser incidences
Creators: name: Lin, Miao-Ling
name: Leng, Yu-Chen
name: Cong, Xin
name: Meng, Da
name: Wang, Jiahong
name: Li, Xiao-Li
name: Yu, Binlu
name: Liu, Xue-Lu
name: Yu, Xue-Feng
name: Tan, Ping-Heng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The selection rule for angle-resolved polarized Raman (ARPR) intensity of phonons from standard group-theoretical method in isotropic materials would break down in anisotropic layered materials (ALMs) due to birefringence and linear dichroism effects. The two effects result in depth-dependent polarization and intensity of incident laser and scattered signal inside ALMs and thus make a challenge to predict ARPR intensity at any laser incidence direction. Herein, taking in-plane anisotropic black phosphorus as a prototype, we developed a so-called birefringence-linear-dichroism (BLD) model to quantitatively understand its ARPR intensity at both normal and oblique laser incidences by the same set of real Raman tensors for certain laser excitation. No fitting parameter is needed, once the birefringence and linear dichroism effects are considered with the complex refractive indexes. An approach was proposed to experimentally determine real Raman tensor and complex refractive indexes, respectively, from the relative Raman intensity along its principle axes and incident-angle resolved reflectivity by Fresnel$'$s law. The results suggest that the previously reported ARPR intensity of ultrathin ALM flakes deposited on a multilayered substrate at normal laser incidence can be also understood based on the BLD model by considering the depth-dependent polarization and intensity of incident laser and scattered Raman signal induced by both birefringence and linear dichroism effects within ALM flakes and the interference effects in the multilayered structures, which are dependent on the excitation wavelength, thickness of ALM flakes and dielectric layers of the substrate. This work can be generally applicable to any opaque anisotropic crystals, offering a promising route to predict and manipulate the polarized behaviors of related phonons.
description: Accepted by Science Bulletin
Analysis of Synthesized DDC Numbers
Creators: name: Voß, Jakob
Publisher: name: Zenodo
Year: 2021
Subjects: subject: DDC
subject: http://dewey.info/class/025.431/e23/

description: The Dewey Decimal Classification (DDC) is used since more than 100 years in libraries in more than 138 countries around the world. In addition to the classes listed in the schedules the DDC classification system allows to build so called synthesized numbers based on sophisticated rules. The way back is not straigthforward and it cannot easily seen which DDC classes are contained in a synthesized DDC number. The automatic analysis of DDC numbers is carried out at the VZG as part of the project Colibri/DDC by Ulrike Reiner, PhD. We are happy to share the first publicly available version of an API and web interface to look up and show the most detailed anaylsis of synthesized DDC numbers. As of today, the database contains 11,360 analyzed DDC numbers from the main classes 100 and 700. More information can be found at the coli-ana project page.
УЧЕНИЕ В ШКОЛЕ КАК ПРОЦЕСС ОВЛАДЕНИЯ МЕНТАЛЬНОЙ РЕГУЛЯЦИЕЙ
Creators: name: Осницкий А. К.
Publisher: name: Дифференциальная психология и психофизиология сегодня: способности, образование, профессионализм
Year: 2021
Subjects: вероятностное прогнозирование
ментальная саморегуляция
регуляторный опыт
самоорганизация саморегуляции.

description: Представлен процесс последовательного усложнения ментальной регуляции учебной деятельности и поведения. Показана необходимость начальной фазы овладения ментальной регуляции – приведение операциональных воэможностей двигательной, когнитивной и эмоциональной сфер учащихся в соответствие с требованиями выполнения учебных заданий: формирование умения выполнить задание по инструкции. Обсуждается взаимодействие вероятностного прогнозирования (непосредственной формы предвосхищения событий) с ментальной формой саморегуляции и проблема развития регуляторного опыта учащихся.
UMA ANÁLISE DO CUSTO DE VIAGEM PARA A PRAIA DA AVENIDA EM MACEIÓ
Creators: name: Abreu, Eliane Aparecida Pereira De
name: Silva, Agnaldo Gomes Da
name: Silva Junior, Gilberto Gomes Da
name: Melo, Rebecca Suzannah Nascimento De
name: Abreu, Eliane Aparecida Pereira De
name: Silva, Agnaldo Gomes Da
name: Silva Junior, Gilberto Gomes Da
name: Melo, Rebecca Suzannah Nascimento De
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: : Valoração Econômica
subject: Custo de Viagem
subject: Economia Ambiental
subject: Economical valoração
subject: trip cost
subject: environmental economy

description: A cidade de Maceió em Alagoas constitui uma cidade litorânea da Região Nordeste do Brasil dotada de beleza natural tais como praias e lagoas, as quais constituem atrativos para o turismo tanto nacional como internacional. Todavia, nesta o crescimento do setor turístico tem sido afetado pela poluição dos recursos ambientais, mais especificamente o despejo do esgoto em praias e lagoas. Dentre as praias urbanas de Maceió, a Praia da Avenida apresenta as piores condições, sendo isto evidenciado pela poluição, pela destruição do calçadão, a fraca iluminação e o pouco policiamento. Em decorrência dos efeitos benéficos do tratamento dos recursos ambientais e o impacto na saúde e no turismo, este estudo tem como objetivo estimar o valor que a população atribui à Praia da Avenida, ou seja, quanto pagaria para a recuperação da mesma. Para aferir tal valor, realizar-se-á pesquisa de campo, aplicando sobre os dados o Método do Custo de Viagem. -------------------------------------------------------The city of Maceió in Alagoas constitutes a coastal city of the Northeast Area of Brazil endowed with natural beauty such an as beaches and ponds, which constitute attractions for the tourism so much national as international. Though, in this the growth of the tourist section has been affected by the pollution of the environmental resources, more specifically the spilling of the sewer in beaches and ponds. Among the urban beaches of Maceió, the Beach of the Avenue presents the worst conditions, being this evidenced by the pollution, for the destruction of the calçadão, the weak illumination and the little policing. Due to the beneficial effects of the treatment of the environmental resources and the impact in the health and in the tourism, this study has as objective esteems the value that the population attributes to the Beach of the Avenue, in other words, as she would pay for the recovery of the same. To confront such value, he/she will take place he/she researches of field, applying on the data the Method of the Cost of Trip.
ФОРМИРОВАНИЕ ДИСЦИПЛИНЫ И ВОСПРИЯТИЯ КАК БАЗОВЫХ СПОСОБНОСТЕЙ СТАРШЕГО ДОШКОЛЬНИКА И МЛАДШЕГО ШКОЛЬНИКА
Creators: name: Иванов А. А.
name: Шелкунова Т. В.
Publisher: name: Дифференциальная психология и психофизиология сегодня: способности, образование, профессионализм
Year: 2021
Subjects: дисциплина
ученическая дисциплина
образ ощущения
образ восприятия
анализ
синтез
знание.

description: В статье рассматриваются закономерности становления учебной дисциплины и представлений о процессе восприятия у старших дошкольников и младших школьников.
Combating Gram negative multi-drug resistance with insights from novel bioinformatics approaches
Creators: name: NENAD MACESIC
Publisher: name: Monash University
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: 60408 Genomics
subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Antibiotic resistant (‘superbug’) infections are a major global health problem. Genetic sequencing is giving us important insights into these infections. In this PhD, I used genetic sequencing to understand how patients are colonized and develop infections with superbugs. I then used it to study two new kinds of antibiotic resistant bacteria. Finally, I focused on resistance to polymyxins, last-line superbug treatments. I used genetic sequencing to determine what kinds of polymyxin resistance there are and how they spread in hospital, as well as discovering a new kind. Finally, I used artificial intelligence to predict polymyxin resistance from bacterial genetic sequences.
Evidence for a Starburst within 9 pc of the Active Nucleus of NGC 1097
Creators: name: Storchi-Bergmann, T.
name: Nemmen, R. S.
name: Spinelli, P. F.
name: Eracleous, M.
name: Wilson, A. S.
name: Filippenko, A. V.
name: Livio, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report evidence for a recent burst of star formation located within 9 pc of the active nucleus of NGC 1097. The observational signatures of the starburst include UV absorption lines and continuum emission from young stars observed in a small-aperture HST spectrum. The burst is a few times 10^6 yr old, has a mass of approximately 10^6 solar masses, an observed luminosity of 1.5 x 10^7 solar luminosities and is obscured by approximately 3 visual magnitudes. The importance of this finding is two-fold: (1) the proximity of the starburst to the active nucleus and thus possible association with it; (2) its obscuration by and apparent association with a dusty absorbing medium, while the broad emission lines appear unobscured, suggesting that the starburst could be embedded in a circumnuclear torus as predicted in the Unified Model of active galactic nuclei.
description: 12 pages, 3 eps figures, accepted for publication in ApJ Letters
Anomaly Detection in Medical Imaging with Deep Perceptual Autoencoders
Creators: name: Shvetsova, Nina
name: Bakker, Bart
name: Fedulova, Irina
name: Schulz, Heinrich
name: Dylov, Dmitry V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Anomaly detection is the problem of recognizing abnormal inputs based on the seen examples of normal data. Despite recent advances of deep learning in recognizing image anomalies, these methods still prove incapable of handling complex medical images, such as barely visible abnormalities in chest X-rays and metastases in lymph nodes. To address this problem, we introduce a new powerful method of image anomaly detection. It relies on the classical autoencoder approach with a re-designed training pipeline to handle high-resolution, complex images and a robust way of computing an image abnormality score. We revisit the very problem statement of fully unsupervised anomaly detection, where no abnormal examples at all are provided during the model setup. We propose to relax this unrealistic assumption by using a very small number of anomalies of confined variability merely to initiate the search of hyperparameters of the model. We evaluate our solution on natural image datasets with a known benchmark, as well as on two medical datasets containing radiology and digital pathology images. The proposed approach suggests a new strong baseline for image anomaly detection and outperforms state-of-the-art approaches in complex medical image analysis tasks.
description: The final authenticated publication is available online at https://ieeexplore.ieee.org/abstract/document/9521238
A search for transiting planets around FGKM dwarfs and sub-giants in the TESS Full Frame Images of the Southern ecliptic hemisphere
Creators: name: Montalto, M.
name: Borsato, L.
name: Granata, V.
name: Lacedelli, G.
name: Malavolta, L.
name: Manthopoulou, E. E.
name: Nardiello, D.
name: Nascimbeni, V.
name: Piotto, G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work, we present the analysis of 976 814 FGKM dwarf and sub-giant stars in the TESS Full Frame Images (FFIs) of the Southern ecliptic hemisphere. We present a new pipeline, DIAmante, developed to extract optimized, multi-sector photometry from TESS FFIs and a classifier, based on the Random Forest technique, trained to discriminate plausible transiting planetary candidates from common false positives. A new statistical model was developed to provide the probability of correct identification of the source of variability. We restricted the planet search to the stars located in the least crowded regions of the sky and identified 396 transiting planetary candidates among which 252 are new detections. The candidates' radius distribution ranges between 1 R$\rm_{\oplus}$ and 2.6 R$\rm_J$ with median value of 1 R$\rm_J$ and the period distribution ranges between 0.25 days and 105 days with median value of 3.8 days. The sample contains four long period candidates (P>50 days) one of which is new and 64 candidates with periods between 10 and 50 days (42 new ones). In the small planet radius domain (R<4 R$\rm_{\oplus}$) we found 39 candidates among which 15 are new detections. Additionally, we present 15 single transit events (14 new ones), a new candidate multi-planetary system and a novel candidate around a known TOI. By using {\it Gaia} dynamical constraints we found that 70 objects show evidence of binarity. We release a catalog of the objects we analyzed and the corresponding lightcurves and diagnostic figures through the MAST and ExoFOP portals.
description: Accepted by MNRAS. Data available at https://archive.stsci.edu/hlsp/diamante
ФУНКЦИОНАЛЬНЫЕ СТРУКТУРЫ МЕНТАЛЬНОЙ РЕГУЛЯЦИИ ПСИХИЧЕСКИХ СОСТОЯНИЙ
Creators: name: Прохоров А.О.
Publisher: name: Дифференциальная психология и психофизиология сегодня: способности, образование, профессионализм
Year: 2021
Subjects: психическое состояние
регуляция
сознание
структура
функция
модель.

description: Анализируются концептуальные модели саморегуляции психических состояний. Отмечается, что менее разработанным аспектом саморегуляции является ментальная составляющая: вклад структур сознания в регуляцию состояний, их роль, значение и функции в регуляторном процессе и др. Предлагается модель ментальной регуляции психических состояний, составляющими которой являются ментальный (субъективный) опыт, система Я, смысловые структуры, рефлексия, переживания, репрезентации и др.
ЦИФРОВАЯ ОБРАЗОВАТЕЛЬНАЯ СРЕДА ШКОЛЫ: ВОПРОСЫ КОМПЛЕКСНОЙ БЕЗОПАСНОСТИ
Creators: name: Москвитина О. А.
Publisher: name: Дифференциальная психология и психофизиология сегодня: способности, образование, профессионализм
Year: 2021
Subjects: цифровая образовательная среда
указ Президента
постановление правительства
комплексная безопасность
результат эксперимента.

description: Статья посвящена анализу ситуации, связанной с реализацией эксперимента по внедрению цифровой образовательной среды в систему образования. Приводятся выдержки из нормативно-правовых актов, показывающие, что гуманитарная, содержательная составляющая этого эксперимента отсутствует, главенствующее положение занимает технология внедрения информационных систем и технологий. Сделан вывод о том, что происходит подмена «человеческого» «машинным», что может привести к последующей деградации не только системы образования, но и самого человека, как социального существа.
ЦИФРОВЫЕ ВОЗМОЖНОСТИ ИССЛЕДОВАНИЯ ИНДИВИДУАЛЬНОГО СТИЛЯ УЧЕБНОЙ ДЕЯТЕЛЬНОСТИ В ПОЛИЭТНОКУЛЬТУРНОЙ ОБРАЗОВАТЕЛЬНОЙ СРЕДЕ
Creators: name: Ахметова Л. В.
name: Иванкина Л. И.
name: Стась А. Н.
Publisher: name: Дифференциальная психология и психофизиология сегодня: способности, образование, профессионализм
Year: 2021
Subjects: образовательная среда
электронная среда обучения
стиль учебной деятельности
познавательный стиль
IT-инструменты
компьютерная программа.

description: Обоснована компьютерная версия исследования индивидуального стиля учебной деятельности (далее ИСУД) на русском и монгольском языках. ИСУД рассматривается как интегрированная система перцептивных, мотивационных и когнитивных составляющих психического аппарата личности. Стиль когнитивной деятельности обучающихся рассматривается как определенная система сенсорно-перцептивных, моторных и умственных целенаправленных действий. Системный подход к выявлению стилевых особенностей учебной активности учащегося позволяет формировать педагогические сценарии обучения в информационно-образовательной среде.
Implementation of TPS Cooperative Learning Model for Improving Student Motivation Using Augmented Reality
Creators: name: Mariyana, Mariyana
Publisher: name: figshare
Year: 2020
Subjects: Education

description: This study aims to study the application of the TPS type of cooperative learning model to increase student motivation in class VII by trying Think Pair Share (TPS). The method used is thinking or thinking, pairing or pairing, sharing, or sharing. TPS type cooperative learning model in increasing student motivation to develop craft knowledge aided by augmented reality vegetable cultivation material. All learning strategies and models that students find and discuss how the construction and contribution of students using teaching materials assisted with augmented reality can be used to help cultivation material.
Nonlinear analog spintronics with van der Waals heterostructures
Creators: name: Omar, S.
name: Gurram, M.
name: Watanabe, K.
name: Taniguchi, T.
name: Guimarães, M. H. D.
name: van Wees, B. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The current generation of spintronic devices, which use electron-spin relies on linear operations for spin-injection, transport and detection processes. The existence of nonlinearity in a spintronic device is indispensable for spin-based complex signal processing operations. Here we for the first time demonstrate the presence of electron-spin dependent nonlinearity in a spintronic device, and measure up to 4th harmonic spin-signals via nonlocal spin-valve and Hanle spin-precession measurements. We demonstrate its application for analog signal processing over pure spin-signals such as amplitude modulation and heterodyne detection operations which require nonlinearity as an essential element. Furthermore, we show that the presence of nonlinearity in the spin-signal has an amplifying effect on the energy-dependent conductivity induced nonlinear spin-to-charge conversion effect. The interaction of the two spin-dependent nonlinear effects in the spin transport channel leads to a highly efficient detection of the spin-signal without using ferromagnets. These effects are measured both at 4K and room temperature, and are suitable for their applications as nonlinear circuit elements in the fields of advanced-spintronics and spin-based neuromorphic computing.
description: 14 pages, 8 figures
DESEMPENHO ECONÔMICO DO ASSENTAMENTO BARRA DO FEIJÃO NO ANO DE 2005
Creators: name: Silva, Etevaldo Almeida
name: Almeida, Cleilson Pinto De
name: Silva, Etevaldo Almeida
name: Almeida, Cleilson Pinto De
Publisher: name: Unknown
Year: 2008
Subjects: subject: Crop Production/Industries
subject: Assentamento
subject: renda
subject: desempenho econômico
subject: Seating
subject: income
subject: economic performance

description: Este estudo teve por objetivo verificar o desempenho econômico do Projeto de Assentamento Barra do Feijão localizado no município de Tabuleiro do Norte-CE no ano de 2005. Utilizou-se a renda como indicador de desempenho para atingir o objetivo proposto. Este indicador foi decomposto da mesma forma como fez Romeiro et al (1994) que agrupou a renda de assentamentos brasileiros em categorias como: renda agrícola líquida monetária; renda animal líquida monetária; renda de auto-consumo; renda de outros trabalhos; renda de outras receitas. No referido trabalho ainda foi acrescentado a esse conjunto de categoria a renda de benefícios. A análise dos dados demonstrou que a renda anual total do assentamento foi de R$ 515.954,90, representando uma média mensal de R$ 42.996,22 para o assentamento e R$ 429,96 por família. Sendo 66,78% provenientes de atividades agropecuárias e 33,22% de rendas não agrícolas. A renda principal foi oriunda da renda animal líquida, que representou 44,19% das rendas totais. A análise deste indicador de desempenho mostrou que a renda media das famílias do assentados foi de 1,4 salário mínimo por mês, apresentando um desempenho econômico baixo.----------------------------------------------This study aimed to verify the economic performance of the Project Assentamento bar of beans located in the municipality of North-EC Board in 2005. It was used to income as an indicator of performance to achieve the proposed objective. This indicator was decomposed in the same way as it did Romeiro et al (1994) which grouped together the income from settlements Brazilians into categories such as: agricultural net monetary income, net income animal monetary; income of self-consumption; income from other work, income from other revenue. In this work also has been added to this collection of the income category of benefits. Data analysis showed that the total annual income of the settlement was $ 515.954,90, representing a monthly average of $ 42.996,22 for the settlement and $ 429.96 per family. As 66.78% from 33.22% and agropecuáias activities of non-agricultural incomes. The main income was derived from the animal net income, which accounted for 44.19% of total rents. The analysis of this indicator of performance monstrous media that the income of families of settlers was 1.4 minimum wages per month, with a low economic performance.
Silicon-based spin quantum computation and the shallow donor exchange gate
Creators: name: Koiller, Belita
name: Capaz, R. B.
name: Hu, X.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Proposed silicon-based quantum-computer architectures have attracted attention because of their promise for scalability and their potential for synergetically utilizing the available resources associated with the existing Si technology infrastructure. Electronic and nuclear spins of shallow donors (e.g. phosphorus) in Si are ideally suited candidates for qubits in such proposals, where shallow donor exchange gates are frequently invoked to perform two-qubit operations. An important potential problem in this context is that intervalley interference originating from the degeneracy in the Si conduction-band edge causes fast oscillations in donor exchange coupling, which imposes significant constraints on the Si quantum-computer architecture. We discuss the theoretical origin of such oscillations. Considering two substitutional donors in Si, we present a systematic statistical study of the correlation between relative position distributions and the resulting exchange distributions.
description: Submitted to the proceedings of the 27th International Conference on the Physics of Semiconductors
ЭМОЦИОНАЛЬНОЕ ВЫГОРАНИЕ ВРАЧЕЙ, РАБОТАВШИХ С БОЛЬНЫМИ COVID-19
Creators: name: Ткаченко И. Д.
name: Гребешкова О. Ю.
Publisher: name: Дифференциальная психология и психофизиология сегодня: способности, образование, профессионализм
Year: 2021
Subjects: врачи
пандемия
COVID-19
психическое здоровье
выгорание.

description: Пандемия короновирусной инфекции, поразившая человечество в 2020 году, стала одной из немногих непокоренных болезней современности. Короновирусная инфекция наносит не только прямой, но и косвенный вред, особенно специалистам, работающим с зараженными – врачам. В данной статье приведена характеристика эмоционального выгорания у врачей, работавших с больными COVID-19.
ЭМОЦИОНАЛЬНОЕ ПЕРЕЖИВАНИЕ ПОДРОСТКА И ЕГО МЕСТО В КОММУНИКАТИВНОМ РАЗВИТИИ
Creators: name: Жамбеева З. З.
Publisher: name: Дифференциальная психология и психофизиология сегодня: способности, образование, профессионализм
Year: 2021
Subjects: коммуникативное развитие
подростки
эмоциональное переживание
эмоциональный интеллект
цифровизация

description: Показана роль эмоционального переживания в коммуникативном развитии подростков. Природная обусловленность переживания обнаруживается на разных уровнях, и в зависимости от их специфики подростковые переживания волнообразны и неустойчивы. В нашем исследовании продемонстрирована связь некоторых факторов эмоционального интеллекта как одного из составляющих коммуникативной способности и эмоционального переживания, как природно обусловленного состояния и возможная трансформация указанных факторов в цифровую эпоху.
New Calculations of Stark Broadened Profiles for Neutral Helium Lines Using Computer Simulations
Creators: name: Tremblay, Patrick
name: Beauchamp, Alain
name: Bergeron, Pierre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new calculations of Stark broadened profiles for neutral helium lines using computer simulations that include some important aspects aimed at better representing the dynamical environment of the helium atom. These include the unification of ion and electron treatment, the correction for ion dynamics, the transition of the electron contribution to broadening from the core to the wings of the profile, the numerical integration of the time evolution operator of helium perturbed by a fluctuating electric field, the Debye correction for the correlation of the motion of charged perturbers, local density variations, and particle reinjection. We compare the results of our simulations for the He I $λλ$4471 and 4922 lines with other results published in the literature. We also test our simulation environment for narrow lines (He I $λλ$5877 and 6678) and broader lines (He I $λλ$4026 and 4144). We find that the narrow lines are more difficult to produce adequately than the the broader ones.
description: 43 pages, 14 figures, accepted for publication in The Astrophysical Journal
ANÁLISE DA VOLATILIDADE DO DÓLAR E DO EURO: UM DIRECIONAMENTO PARA EMPRESAS DO AGRONEGÓCIO
Creators: name: Jubert, Roberto Wagner
name: Paixao, Marcia Cristina
name: Maia, Sinezio Fernandes
name: Jubert, Roberto Wagner
name: Paixao, Marcia Cristina
name: Maia, Sinezio Fernandes
Publisher: name: Unknown
Year: 2008
Subjects: subject: International Relations/Trade
subject: Modelos ARCH
subject: Taxa de câmbio
subject: Volatilidade
subject: ARCH models
subject: Exchange rate
subject: Volatility

description: A análise do padrão da volatilidade dos retornos gerados por derivativos de moedas estrangeiras é tópico particularmente importante para empresas que realizam volume significativo de negócios com o exterior, a exemplo dos grandes produtores brasileiros de produtos agropecuários, e que atuam no mercado de derivativos buscando eliminar riscos financeiros ligados às variações das taxas de câmbio. Neste artigo, realizou-se uma análise do padrão da volatilidade dos retornos do dólar americano e do euro, utilizando-se modelos da classe ARCH, considerando como premissa básica que a variância condicional fornecida por estes modelos pode ser utilizada como proxy para a volatilidade dos retornos dos derivativos de moedas estrangeiras. Os resultados sugerem que choques terão efeitos por um longo período de tempo sobre tais variáveis. As estimações evidenciam, ainda, assimetria indicando que choques positivos têm efeitos distintos de choques negativos tanto no euro quanto no dólar. O estudo sugere que o mercado de derivativos referenciados em euro é o que apresenta menor risco de variações nos retornos, isto é, revela-se como o mercado mais adequado para fazer hedge.--------------------------------------------The analysis of the pattern of returns volatility generated by derivatives based on foreign currencies is a important topic for companies that hold significant volume of business around the world. This is the case of the great Brazilian producers of farmed products who operate in derivative markets seeking to eliminate financial risks related to changes in exchange rates. This paper presents an analysis of the pattern of volatility of dollar and euro return, using models of ARCH class, considering as premise that the conditional variance provided by these models can be used as a proxy for derivatives volatility returns. The results suggest that shocks will be effective for a long period of time on such variables. Results also indicate asymmetric since positive shocks have different effects from negative shocks on both euro and dollar. The study suggests that derivatives referenced in euro presents the lowest risk of changes in returns and therefore this market is more indicated to hedge.
Pressure dependence of the melting mechanism at the limit of overheating in Lennard-Jones crystals
Creators: name: Gómez, L.
name: Gazza, C.
name: Dacharry, H.
name: Peñaranda, L.
name: Dobry, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the pressure dependence of the melting mechanism of a surface free Lennard-Jones crystal by constant pressure Monte Carlo simulation. The difference between the overheating temperature($T_{OH}$) and the thermodynamical melting point($T_M$) increase for increasing pressure. When particles move into the repulsive part of the potential the properties at $T_{OH}$ change. There is a crossover pressure where the volume jump becomes pressure-independent. The overheating limit is pre-announced by thermal excitation of big clusters of defects. The temperature zone where the system is dominated by these big clusters of defects increases with increasing pressure. Beyond the crossover pressure we find that excitation of defects and clusters of them start at the same temperature scale related with $T_{OH}$.
description: 6 pages, 5 figures. Accepted for publication in Physical Review B
Impact of LISA's low frequency sensitivity on observations of massive black hole mergers
Creators: name: Baker, J.
name: Centrella, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: LISA will be able to detect gravitational waves from inspiralling massive black hole (MBH) binaries out to redshifts z > 10. If the binary masses and luminosity distances can be extracted from the LISA data stream, this information can be used to reveal the merger history of MBH binaries and their host galaxies in the evolving universe. Since this parameter extraction generally requires that LISA observe the inspiral for a significant fraction of its yearly orbit, carrying out this program requires adequate sensitivity at low frequencies, f < 10^{-4} Hz. Using several candidate low frequency sensitivities, we examine LISA's potential for characterizing MBH binary coalescences at redshifts z > 1.
description: Submitted to the Proceedings of the 5th International LISA Symposium, Classical and Quantum Gravity
M-LVC: Multiple Frames Prediction for Learned Video Compression
Creators: name: Lin, Jianping
name: Liu, Dong
name: Li, Houqiang
name: Wu, Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We propose an end-to-end learned video compression scheme for low-latency scenarios. Previous methods are limited in using the previous one frame as reference. Our method introduces the usage of the previous multiple frames as references. In our scheme, the motion vector (MV) field is calculated between the current frame and the previous one. With multiple reference frames and associated multiple MV fields, our designed network can generate more accurate prediction of the current frame, yielding less residual. Multiple reference frames also help generate MV prediction, which reduces the coding cost of MV field. We use two deep auto-encoders to compress the residual and the MV, respectively. To compensate for the compression error of the auto-encoders, we further design a MV refinement network and a residual refinement network, taking use of the multiple reference frames as well. All the modules in our scheme are jointly optimized through a single rate-distortion loss function. We use a step-by-step training strategy to optimize the entire scheme. Experimental results show that the proposed method outperforms the existing learned video compression methods for low-latency mode. Our method also performs better than H.265 in both PSNR and MS-SSIM. Our code and models are publicly available.
description: Accepted to appear in CVPR2020; camera-ready
Innovations in menstrual organisation: Redistributing boundaries, capitals, and labour
Creators: name: LARA OWEN
Publisher: name: Monash University
Year: 2020
Subjects: subject: 150310 Organisation and Management Theory
subject: FOS: Economics and business
subject: Gender studies

description: This thesis explores new ways of organising menstruation via two case studies: (i) on menstrual cup uptake among undergraduates in Melbourne, Australia, and (ii) on a pioneering menstrual workplace policy in Bristol, UK. The contemporary value given to sustainability (of products and wellbeing) made both innovations attractive within these progressively-minded, urban contexts. The usual stigma associated with menstruation was reduced, with participants speaking more openly with partners, friends, and at work about their menstrual experience. This openness sometimes involved temporary vulnerability, but also increased confidence and sense of permission to acknowledge needs. Both innovations improved workplace experience of menstruation.
Great Power Brings Great Responsibility: Personalizing Conversational AI for Diverse Problem-Solvers
Creators: name: Santos, Italo
name: Felizardo, Katia Romero
name: Steinmacher, Igor
name: Gerosa, Marco A.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Newcomers onboarding to Open Source Software (OSS) projects face many challenges. Large Language Models (LLMs), like ChatGPT, have emerged as potential resources for answering questions and providing guidance, with many developers now turning to ChatGPT over traditional Q&A sites like Stack Overflow. Nonetheless, LLMs may carry biases in presenting information, which can be especially impactful for newcomers whose problem-solving styles may not be broadly represented. This raises important questions about the accessibility of AI-driven support for newcomers to OSS projects. This vision paper outlines the potential of adapting AI responses to various problem-solving styles to avoid privileging a particular subgroup. We discuss the potential of AI persona-based prompt engineering as a strategy for interacting with AI. This study invites further research to refine AI-based tools to better support contributions to OSS projects.
Particle Motion and Scalar Field Propagation in Myers-Perry Black Hole Spacetimes in All Dimensions
Creators: name: Vasudevan, Muraari
name: Stevens, Kory A.
name: Page, Don N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study separability of the Hamilton-Jacobi and massive Klein-Gordon equations in the general Myers-Perry black hole background in all dimensions. Complete separation of both equations is carried out in cases when there are two sets of equal black hole rotation parameters, which significantly enlarges the rotational symmetry group. We explicitly construct a nontrivial irreducible Killing tensor associated with the enlarged symmetry group which permits separation. We also derive first-order equations of motion for particles in these backgrounds and examine some of their properties.
description: 16 pages, LaTeX2e
Equal in theory : an assessment of anti-discrimination statutes as equality tools for people with disabilities
Creators: name: Patch, Tom W.
Publisher: name: University of British Columbia
Year: 2009

description: In recent years, the enforcement of Canadian human rights statutes has been the subject of much criticism. That criticism comes not only from organizations that are required to change their practices to comply with the statutes, but from advocates who question the effectiveness of human rights enforcement. Studies which attempt to address these criticisms generally review the criticisms and then seek to modify the enforcement models to ameliorate the problems which have generated the criticism. This thesis considers the problem from a more theoretical perspective. With a focus on disability, this thesis considers whether Canadian anti-discrimination statutes, which were created when the prevailing theory of equality was a formal one, are capable of achieving substantive equality as it is now conceived. Applying a disability rights perspective, substantive equality for people with disabilities requires that a wide and complex variety of barriers be removed. These barriers may result from intended or unintended discrimination. They may be physical or attitudinal. They may be isolated, individual acts or they may reflect widespread societal norms. To eliminate such an array of barriers, anti-discrimination statutes must include a range of powers and procedures: they must incorporate provisions that protect people with disabilities from such barriers; they must provide mechanisms to identify the barriers; there must be mechanisms to determine whether the barriers contravene the protected right; and the statutes must provide effective remedies. This thesis concludes that contemporary human rights enforcement models are capable of effectively addressing many individual barriers to equality for people with disabilities. However, under a complaint-based model, human rights agencies cannot effectively address barriers that result from the operation of widespread norms. Canadian human rights agencies are therefore limited in their ability to achieve the societal transformation that is necessary to achieve substantive equality for people with disabilities. For such equality to be realized, anti-discrimination statutes must be seen as just one facet of a much broader approach.
Public health impact of pneumococcal conjugate vaccination: a review of measurement challenges
Creators: name: Horn, Emily K
name: Wasserman, Matt D
name: Hall-Murray, Cassandra
name: Sings, Heather L
name: Chapman, Ruth
name: Farkouh, Raymond A
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Modeling analyses have attempted to quantify the global impact of pneumococcal conjugate vaccines (PCVs) on pneumococcal disease (PD), however these pediatric models face several challenges in obtaining comprehensive impact measurements. We present several measurement challenges and discuss examples from recently published pediatric modeling evaluations. Challenges include estimating the number of infants fully or partially vaccinated with PCVs, inclusion of indirect effects of vaccination, accounting for various dosing schedules, capturing effect of PCVs on nonspecific, noninvasive PD, and inclusion of adult PCV use. The true impact of PCVs has been consistently underestimated in published analyses due to multiple measurement challenges. Nearly 100 million adults are estimated to have received PCV13 over the last decade globally, potentially preventing up to 662 thousand cases of PD. Approximately 4.1 million cases of invasive PD alone may have been averted through indirect protection. Estimates of PCV impact on noninvasive PD remain a challenge due to altered epidemiology. Program switches, incomplete vaccination, and private market uptake among children also confound PD impact estimates. Taken together, the number of averted PD cases from PCV use in the last ten years may be up to three times higher than estimated in previous studies.
Wild division algebras over Laurent series fields
Creators: name: Zheglov, Alexander
Publisher: name: arXiv
Year: 2005
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 16K20;12J20

description: In this paper we study some special classes of division algebras over a Laurent series field with arbitrary residue field. We call the algebras from these classes as splittable and good splittable division algebras. It is shown that these classes contain the group of tame division algebras. For the class of good division algebras a decomposition theorem is given. This theorem is a generalization of the decomposition theorems for tame division algebras given by Jacob and Wadsworth. For both clases we introduce a notion of a $δ$-map and develop a technique of $δ$-maps for division algebras from these classes. Using this technique we reprove several old well known results of Saltman and get the positive answer on the period-index conjecture of M.Artin: the exponent of $A$ is equal to its index for any division algebra $A$ over a $C_2$-field $F$, when $F\eq F_1((t_2))$, where $F_1$ is a $C_1$-field. The paper includes also some other results about splittable division algebras, which, we hope, will be useful for the further investigation of wild division algebras.
description: 32 pages
Revisiting Anchor Mechanisms for Temporal Action Localization
Creators: name: Yang, Le
name: Peng, Houwen
name: Zhang, Dingwen
name: Fu, Jianlong
name: Han, Junwei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Most of the current action localization methods follow an anchor-based pipeline: depicting action instances by pre-defined anchors, learning to select the anchors closest to the ground truth, and predicting the confidence of anchors with refinements. Pre-defined anchors set prior about the location and duration for action instances, which facilitates the localization for common action instances but limits the flexibility for tackling action instances with drastic varieties, especially for extremely short or extremely long ones. To address this problem, this paper proposes a novel anchor-free action localization module that assists action localization by temporal points. Specifically, this module represents an action instance as a point with its distances to the starting boundary and ending boundary, alleviating the pre-defined anchor restrictions in terms of action localization and duration. The proposed anchor-free module is capable of predicting the action instances whose duration is either extremely short or extremely long. By combining the proposed anchor-free module with a conventional anchor-based module, we propose a novel action localization framework, called A2Net. The cooperation between anchor-free and anchor-based modules achieves superior performance to the state-of-the-art on THUMOS14 (45.5% vs. 42.8%). Furthermore, comprehensive experiments demonstrate the complementarity between the anchor-free and the anchor-based module, making A2Net simple but effective.
description: Accept by TIP, code: https://github.com/LeYangNwpu/A2Net
Riviste elettroniche, fair data e linked open data
Creators: name: Caravale, Alessandra
name: Piergrossi, Alessandra
Publisher: name: Zenodo
Year: 2021
Subjects: open access, linked open data, fair principles

description: Presentazione relativa all'intervento tenuto nel webinar "Le scienze del patrimonio culturale on Air. ISPC e la politica open access", il 15 marzo 2021. I temi trattati sono le riviste elettroniche e l'open access, i fair principles e alcuni esempi di linked open data
Gravitational non-commutativity and Gödel-like spacetimes
Creators: name: Das, Saurya
name: Gegenberg, Jack
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive general conditions under which geodesics of stationary spacetimes resemble trajectories of charged particles in an electromagnetic field. For large curvatures (analogous to strong magnetic fields), the quantum mechanicical states of these particles are confined to gravitational analogs of {\it lowest Landau levels}. Furthermore, there is an effective non-commutativity between their spatial coordinates. We point out that the Som-Raychaudhuri and Gödel spacetime and its generalisations are precisely of the above type and compute the effective non-commutativities that they induce. We show that the non-commutativity for Gödel spacetime is identical to that on the fuzzy sphere. Finally, we show how the star product naturally emerges in Som-Raychaudhuri spacetimes.
description: Two sections added (Relation to the fuzzy sphere, Emergence of the star product). 10 pages, Revtex. To appear in General Relativity and Gravitation
ANALISIS PENGGUNAAN LAHAN TERTINGGI DAN TERBAIK PADA LAHAN DI JALAN KRAMAT 1 KEBAYORAN LAMA ASET KEMENTERIAN PUPR
Creators: name: Achmad Syafii
Publisher: name: figshare
Year: 2020
Subjects: subject: 90599 Civil Engineering not elsewhere classified
subject: FOS: Civil engineering
subject: 120599 Urban and Regional Planning not elsewhere classified
subject: FOS: Social and economic geography

description: Alternatif penggunaan lahan didapat dari kajian literatur dan persepsi kecenderungan pelaku pengguna lahan yakni Kementerian PUPR dan Dinas Tata Kota DKI Jakarta. Kriteria yang dipertimbangkan dalam menganalisis alternative penggunaan lahan tersebut adalah dengan mempertimbangkan prinsip penggunaan tertinggi dan terbaik yaitu secara hukum diizinkan, secara fisik memungkinkan dan secara finansial layak serta berproduksi secara maksimal. Uji kelayakan hukum dilakukan dengan mengacu pada RTRW, RDTR dan peraturan zonasi DKI Jakarta 2030. Uji kelayakan fisik dilakukan pada aspek ukuran, bentuk, kemiringan lahan, aksesibilitas dan ketersediaan fasilitas publik. Uji kelayakan finansial dilakukan dengan menghitung arus kas (NPV) dan tingkat pengembaliannya (IRR). NPV dihitung berdasarkan investasi (biaya teknis bangunan), pendapatan bersih dari sewa dan biaya operasional. Sedangkan IRR dianggap efisien jika lebih dari tingkat pengembalian minimum (MARR) yang ditetapkan sebesar 12,45%. Selanjutnya untuk mengukur produktivitas maksimal digunakan metode penyisaan tanah. Yakni selisih nilai properti (tanah dan bangunan) dengan nilai investasi (biaya teknis bangunan). Nilai properti didapat berdasarkan rumus V=I/r, pendapatan bersih dibagi dengan tingkat kapitalisasi/tingkat pengembalian minimum (MARR).