bluuebunny/crossref_metadata_2025 huggingface dataset:
Análise do plano de gestão integrada de resíduos sólidos de Imperatriz (MA) para o gerenciamento de resíduos sólidos urbanos
Authors: Silva Márcio A.S. , Moraes Marcela B. , Silva José L.G.
Published: November 2020

Este artigo tem como objetivo descrever como ocorre o descarte dos resíduos sólidos e analisar a política pública de tratamento de resíduos sólidos na cidade de Imperatriz, estado do Maranhão. Trata-se de um estudo documental, com abordagem descritiva e delineamento qualitativo. Cabe mencionar que a cidade de Imperatriz se encontra entre aquelas que já implantaram o Plano Municipal de Gerenciamento de Resíduos Sólidos Urbanos (RSU). O processo de coleta promove a cidade status de referência para outras cidades, por ter despertado um olhar acerca das questões ambientais e a ligação com o processo industrial. Assim, o estudo evidencia que os RSU refletem ainda insatisfação entre a população e a administração pública. Pode-se entender que no que concerne a política pública de RSU, o município de Imperatriz tem cooperado para o gerenciamento. Ao desenvolver o plano, além da contribuição com o meio ambiente em que está inserido, destaca-se os incentivos federais para a continuação do desenvolvimento das atividades relacionadas.
Capacity Enhancement in WLAN using MIMO
Authors: Shamganth K. , Reena M. P.
Published: November 2020

Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antennas at both transmitter and receiver ends. Multiple antenna technologies enable high capacities suited for Internet and multimedia services, and also dramatically increase range and reliability. The combination of multiple-input multiple-output (MIMO) signal processing with orthogonal frequency division multiplexing (OFDM) is regarded as a promising solution for enhancing the data rates of next-generation wireless communication systems operating in frequencyselective fading environments. In this paper ,we focus mainly on Internet users in hotspots like Airport etc., requiring high data rate services. A high data rate WLAN system design is proposed using MIMO-OFDM. In the proposed WLAN system, IEEE 802.11a standard design is adopted but the results prove a data rate enhancement from the conventional IEEE 802.11a.
Study: The Performance FFT and Wavelet Packet of OFDM Systems from through Demonstrated Numerical Examples
Authors: Taha Haitham J. , Salleh M. F. M.
Published: November 2020

A major goal of the next-generation wireless communication systems is the development of a reliable highspeed wireless communication system that supports high user mobility. Multi-Carrier Modulation (MCM) technique is an attractive approach for high-speed digital radio communication systems in order to achieve a high spectral efficiency and to combat the frequency selectivity of the channel. Orthogonal frequency division multiplexing (OFDM) is a kind of MCM techniques. As proven by the success of OFDM, multicarrier modulation has been recognized as an efficient solution for wireless communications. Waveform bases other than sine functions could similarly be used for multicarrier systems in order to provide an alternative to OFDM. Wavelet Packet Modulation (WPM) was proposed as one of the multicarrier transmission methods like OFDM. Since it is a multicarrier transmission method. In this paper, we study the performance of FFT-OFDM and wavelet Packet (WP)- OFDM from through demonstrated numerical examples, and evaluation of FFT-OFDM and DWPT-OFDM in AWGN channel , Flat fading channel and Selective Fading Channel.
Perancangan Sistem Informasi Persediaan Barang Berbasis Web pada Alzena Hijab Store Banjarmasin
Authors: Najwaini Effan , Purnama Purnama , Rizki Aulia Nur
Published: November 2020

Pada era teknologi informasi seperti sekarang ini, efisiensi waktu dan tenaga, serta kemudahan dalam mendapatkan suatu informasi sangatlah dibutuhkan. Dalam sebuah usaha toko kecepatan dalam pengolahan data  sangatlah penting. Oleh karena itu, harus ditunjang dengan sarana dan prasarana yang memadai. Pada toko ini masih menggunakan sistem komputer manual dengan mencatat semua data menggunakan aplikasi Microsoft office excel sehingga proses penelusuran laporan barang masuk dan keluar menjadi lama karena melihat sheet by sheet . Sehingga sangat dibutuhkan suatu sistem yang dapat mengatasi masalah tersebut. Pada penelitian ini akan dibuat aplikasi sistem yang mampu memberikan informasi untuk laporan persediaan barang secara cepat dan tepat. Untuk membangun sistem tersebut, maka dapat dilakukan pembuatan aplikasi berbasis web dengan menggunakan framework PHP sebagai kode programnya dan MySQL sebagai basisdatanya. Adapun langkah-langkah penelitiannya meliputi: analisa kebutuhan sistem, desain sistem, pembuatan kode program, pengujian, dan pemeliharaan. Aplikasi sistem informasi yang dibuat dalam penelitian ini memberikan kontribusi yang cukup berarti bagi toko tersebut. Hasil penelitian akan menghasilkan sebuah sistem informasi persediaan barang berbasis website yang memberikan kemudahan dalam mengelola persediaan barang.
Desain Banyumas Smart City Berbasis Internet of Things (IoT) Menggunakan Fog Computing Architecture
Authors: Bayu Prastyo  , Faiz Syaikhoni Aziz  , Wahyu Pribadi  , A.N. Afandi
Published: November 2020

Internet use in Banyumas Regency is now increasingly diverse according to the demands of the needs. The development of communication technology raises various aspects that also develop. For example, the use of the internet for a traffic light control system so that it can be adjusted according to the settings and can be monitored in real time. In the development of communication technology, the term Internet of Things (IoT) emerged as the concept of extending the benefits of internet communication systems to give impulses to other systems. In other words, IoT is used as a communication for remote control and monitoring by utilizing an internet connection. The Internet of Things in the era is now being developed to create an intelligent system for the purposes of controlling various public needs until the concept of the smart city emerges. Basically, smart cities utilize internet connections for many purposes such as controlling CCTV, traffic lights, controlling arm robots in the industry and storing data in hospitals. If the system is carried out directly from the device to the central server, there will be a very long queue of data while the system created requires speed and accuracy of time so that a system is needed that allows sufficient data control and processing to be carried out on network edge users. Then fog Computing is used with the hope that the smart city system can work with small latency values ​​so that the system is more real-time in sending or receiving data.
GESTÃO DO CONHECIMENTO EM TEMPOS DE CRISE
Authors: Almeida de Lucca Tácito , Dos Santos Neri
Published: November 2020

Nas últimas décadas uma série de crises das mais diferentes naturezas deixaram cicatrizes na história e trouxeram a tona a vulnerabilidade em que se encontram a população, organizações e governos no que tange o enfreitamento de crises. O desenvolvimento de medidas de prevenção, preparação e recuperação são fatores-chave para diminuir a frequência e a gravidade das crises. A gestão do conhecimento (GC) tem sido reconhecida como uma importante multidisciplina capaz de apoiar o gerenciamento de crises. A metodologia qualitativa consistiu em uma rigorosa revisão sistemática de literatura teórica e empírica. O objetivo do estudo foi construir um conjunto de elementos, ações e artefatos dos campos da GC, gerenciamento de riscos, gerenciamento de crises, resultando em um framework teórico prescritivo de processos com implicações importantes para os profissionais da GC.
PRÁTICAS PARA PUBLICAÇÃO DE DADOS CONECTADOS
Authors: De Oliveira Chaves Jefferson , Leomar Todesco José
Published: November 2020

A manutenção de conjuntos de dados conectados é uma atividade onerosa que envolve a utilização de diversos recursos, obedecer princípios e respeitar boas práticas. Assim esta revisão sistemática tem como objetivo realizar uma análise sobre as práticas utilizadas para a manutenção de dados conectados. Num universo de noventa e um artigos, chegou-se a um recorte de quinze trabalhos, nos quais esta revisão está baseada. É possível observar que há grande  aderência aos princípios e algumas dificuldades com as boas práticas, indicando uma relativa consolidação de práticas em alguns pontos, enquanto há outros que ainda demandam uma atenção especial na construção de dados conectados.
GESTÃO DO CONHECIMENTO NO CONTEXTO DA GESTÃO DE RISCOS DE DESASTRES
Authors: De Amorim Borges Vazquez Alice , Santos Neri
Published: November 2020

Este artigo apresenta como pergunta de partida identificar “como as pesquisas acadêmicastêm trabalhado a gestão do conhecimento na gestão de riscos de desastres após a criação daLei n. 12.608 em 2012”. O objetivo geral da pesquisa “analisar as característicasbibliométricas após 2012 sobre gestão do conhecimento na redução de riscos e desastres, paraidentificar as inovações que os autores estão criando, assim como as temáticas das publicaçõesindexadas em base de dados internacionais”. A partir de uma revisão sistemática integrativasalienta-se, que, em caso de desastres, no âmbito das organizações públicas, deve-se terpessoas capacitadas em vários espaços, preparadas para atuar, cada uma dentro das suascompetências, coordenadas com ações integradas.
GOVERNANÇA PARTICIPATIVA COMO IMPULSIONADORA DE CIDADES INTELIGENTES
Authors: Farinazzo Reis Repette Palmyra , Schreiner Tatiana , Moreira da Costa Eduardo
Published: November 2020

A governança urbana requer soluções interdisciplinares e inovadoras que aproveitem a inteligência, o conhecimento e as habilidades de diferentes atores que compõem o ecossistema das cidades. Este estudo apresenta uma experiência prática diferenciada, que envolveu a sociedade civil, a academia e os setores público e privado, na definição de estratégias, projetos e ações a serem desenvolvidos na região sul de Florianópolis. O estudo de caso em governança integrou um dos eixos das ações do Workshop Cidades mais Humanas, Inteligentes e Sustentáveis (CHIS), organizado pelo LabCHIS, laboratório de pesquisa do Departamento de Engenharia e Gestão do Conhecimento, da Universidade Federal de Santa Catarina, para a definição do projeto de utilização da área da Fazenda da Ressacada. A pesquisa foi exploratória e descritiva, com abordagem qualitativa, e utilizou a ferramenta de Design Thinking para propor uma solução de governança urbana apoiada em ferramentas digitais.
DESIGN THINKING E POLÍTICAS PÚBLICAS
Authors: MENDES CORRÊA LYVIA , Welter Marcio , Da Mota Alves João Bosco
Published: November 2020

A participação dos diversos atores sociais no processo de formulação e desenvolvimento das políticas públicas foi tradicionalmente reservada para autoridades políticas. A partir de tal realidade, questiona-se como o design thinking pode contribuir no ciclo de políticas públicas? Para responder tal pergunta, realizamos uma revisão sistemática e integrativa da literatura, utilizando o protocolo proposto por Kitchenham (2004). Verificamos que o design thinking é aplicável no processo de desenvolvimento de políticas públicas, principalmente nas fases de elaboração de alternativas e tomada de decisão, muito embora com algumas críticas, principalmente quanto à escalabilidade. Ainda assim, é um tema pouco explorado podendo ser desenvolvido em trabalhos futuros, para além de processos de gestão e inovação, mas também como processo de elaboração de políticas públicas, traduzida pela expressão policy design.
TRANSFORMAÇÃO DIGITAL NO MERCADO DE LOCAÇÃO DE IMÓVEIS
Authors: Machado Silveira de Castro Luíza , Henrique Leso Bernardo , Nogueira Cortimiglia Marcelo
Published: November 2020

O setor imobiliário brasileiro vivenciou durante sua história, e ainda vivencia,muitas oscilações influenciadas por fatores tais como a tecnologia, a economia, a sociedade, aindústria, entre outros. O objetivo deste trabalho é entender como a entrada de novasempresas com uma proposta totalmente digital está desburocratizando e transformandodigitalmente os processos de locação nas imobiliárias tradicionais, e quais impactos essasempresas provocam nas imobiliárias tradicionais. Para alcançar os resultados desejados,foram entrevistadas duas imobiliárias tradicionais, cinco imobiliárias digitalizadas e trêsespecialistas no mercado, totalizando 10 entrevistas. A principal tendência para o futuro é queas imobiliárias se utilizem de um modelo de negócio híbrido, aonde aliam a tecnologia aoatendimento físico, oferecendo conveniência ao seu cliente, seja ele proprietário ou inquilino.
REDES DE INNOVACIÓN CON PARTICIPACIÓN DE ESTUDIANTES, EGRESADOS Y GRADUADOS GTEC DE SAN LUIS
Authors: Monti Facundo Miguel
Published: November 2020

Caso de Estudio sobre la inserción de Estudiantes, Egresados y/o Graduados de la Carrera de Especialización en Gestión y Vinculación Tecnológica (GTEC) de la Universidad Nacional de San Luis (UNSL) en Redes de Innovación Locales, Nacionales e Internacionales. Estudio realizado en base a 100% datos primarios relevados mediante encuestas y entrevistas personales a 126 personas pertenecientes a 5 cohortes de la carrera de especialización GTEC (2010-2019), contrastadas con la opinión de Actores del Ecosistema de Innovación de San Luis
DESIGN DE SERVIÇO E A COMUNICAÇÃO COM O CLIENTE
Authors: Reis Kleiton , Saibert Jadna , Baldessar Maria José
Published: November 2020

Em 2019, uma empresa de software brasileira enfrentou problemas com vários clientes devido à comunicação referente a um dos serviços de seu portfólio, confirmando a necessidade de melhorar a comunicação para preservar uma excelente experiência para o cliente. O objetivo deste artigo foi identificar problemas e propor melhorias no serviço de manutenção da empresa. Trata-se de um estudo qualitativo, realizado através de um estudo de caso da empresa. Primeiramente, foi realizada uma revisão da literatura, a fim de apoiar os conceitos de design de serviço e comunicação com o cliente, bem como traçar sua relação. Em seguida, o público interno e os clientes foram entrevistados; depois disso, o processo Blueprint foi aplicado, com o objetivo de identificar e implementar as melhores soluções para os problemas mapeados. Como principais resultados, propomos algumas soluções para a empresa resolver os problemas que mapeamos.
SISTEMA INSTITUCIONAL DE EVALUACIÓN DE COMPETENCIAS SIEC
Authors: Campos Alvarado Johann Leonardo
Published: November 2020

La Universidad Cooperativa de Colombia, diseña y construye un sistema de evaluación que, de acuerdo con su Modelo Educativo Crítico con Enfoque de Competencias, asegura un fundamento epistémico, metodológico y técnico para desplegar la evaluación formativa al interior de los cursos (evaluación interna) y a nivel institucional (evaluación externa). El sistema construye y aplica instrumentos de evaluación con estándares nacionales e internacionales de calidad, validez teórica y empírica, procesamiento y divulgación, para evaluar las competencias genéricas, transversales y específicas que se desarrollan en los diferentes cursos. El sistema dirige su acción a profesores y estudiantes, es un elemento dentro del sistema de evaluación integral que la universidad diseñó para obtener una evaluación de 360 grados que permita valorar la acción de la universidad frente a su compromiso con el aprendizaje en los estudiantes.
Modelo Hibrido: Gestión del Cambio e innovación Social
Authors: Moreno R. Sidia , J. de Carrizo Elba
Published: November 2020

Resumen:

La investigación consistió en la contrastación de dos enfoques utilizados en el desarrollo de proyectos de transformación social y organizacional de base tecnológica. Uno del ámbito social y el otro empresarial, para generar la fundamentación de un nuevo modelo híbrido que incorpore aspectos de ambos enfoques que fortalezcan procesos de cocreación, coejecución y de gestión del cambio organizacional en ambientes de crisis. Para ello, se realizó una evaluación cualitativa  de las fases de la Metodología Sistémica e Integral del Cambio utilizada en el sector empresarial, y se comparó con las fases y criterios de los proyectos del Labotarorio de Innovación Social de la Universidad Tecnológica de Panamá. Se obtuvo la valoración integral de la metodología, en función del enfoque de innovación social y se identificaron características deseables en el modelo híbrido a proponer.
Rousseau
Authors: Gonzaga Álvaro de Azevedo
Published: November 2020

O presente artigo busca examinar o conteúdo do principio da igualdade à luz do pensamento do contratualista suíço Jean Jacques Rousseau em suas obras políticas. A análise parte da obra O discurso da Origem da Desigualdade entre os Homens e se finda com a analise de alguns conceitos de O Contrato Social.
Fe3O4 Based Nanoparticles as a Catalyst in Degradation of Dyes: A Short Review
Authors: Panda Sandip Kumar , Prasad Lalit
Published: November 2020

Dye is a chemical substance which is used for coloring of a substance. For better coloration of substance it is made chemically stable and persistence to light, and biodegradation process. After applied to a substrate the waste generated in water causes very toxic effect and hazardous for aquatic ecosystem so it is necessary to degrade or decolorize dyes from waste water. In present review degradation of different dyes using Fe3O4 based nanoparticles were cited and their catalytic properties for degradation studied in this review.
Impact of IoT in Higher Education
Authors: R. D. Sivakumar
Published: November 2020

The internet of things, or IoT, is a game plan of interrelated handling contraptions, mechanical and propelled machines, objects, people that are outfitted with unique identifiers and the ability to move data over a framework without anticipating that human-should human or human-to-PC association. IoT in the study hall joins the advantages of IoT in content conveyance, business, and human services. It modifies and upgrades instruction by permitting improvement of all substance and types of conveyance. It empowers instructors to offer concentration to people and their technique. It likewise diminishes expenses and work of training through robotization of basic assignments outside of the real instruction process.
A Dominação Carismática em Regimes Democráticos
Authors: Laureano Roger
Published: November 2020

O artigo busca analisar a possibilidade de conciliar o conceito weberiano de dominação carismática com as democracias contemporâneas e com líderes que não rompem com as normas institucionais. A partir da análise exegética de Weber, chegamos a uma definição de dominação carismática que se baseia primordialmente na relação afetiva dos seguidores com o líder em razão de seu caráter extraordinário. Contestando outras interpretações, argumentamos que essa definição é compatível com líderes democráticos sem perder a eficiência de sua aplicação a casos subversivos. Finalmente, para além de Weber, apresentamos algumas possíveis aplicações do conceito a partir de três elementos ideais-típicos: intensidade, difusão e direção do carisma. Esse modelo pode incluir carismas autoritários e antiautoritários e explicar o comportamento dos seguidores em medidas que envolvam os líderes.
Biography and Scholarship. In Memory of Guenther Roth
Authors: Villas Bôas Luciana
Published: November 2020

Este ensaio faz um retrato da personalidade e da trajetória intelectual de Guenther Roth a partir da história da sua uma amizade com a autora, reflexões do sociólogo sobre a sua autobiografia, memórias e correspondências inéditas.
Resistencias diaspóricas e interseccionalidad: Mujeres mapuche profesionales en la ciudad de Santiago y el Wallmapu
Authors: Rain Alicia Del Pilar
Published: November 2020

Analizamos comprensivamente las experiencias de resistencias diaspóricas y de género de mujeres mapuche profesionales del sur de Chile, con las cuales ellas problematizan el modelo colonial, patriarcal y clasista imperante. Considerado la perspectiva de género interseccional, focalizada en las diversas y heterogéneas matrices de opresión que las mujeres racializadas afrontan en diferentes contextos sociohistóricos, hemos desarrollado una etnografía multisituada con entrevistas en profundidad, para llegar a las vivencias significativas de 20 mujeres de las regiones Metropolitana, Biobío, La Araucanía y Los Ríos. Los resultados nos muestran que la situación diaspórica de las mujeres mapuche transforma su identidad mapuche y de género, tensionando, con ello, su mundo privado y público. También, coexisten desgarros y resistencias que ellas crean y re-crean, a partir de sus propios saberes mapuche y las prácticas discursivas con las que enfrentan las opresiones de clase, raza y género. Concluimos que las mujeres mapuche profesionales, en el contexto del devenir diaspórico, llevan la resistencia no sólo a sus espacios sociolaborales, sino que también a sus relaciones familiares, a sus activismos políticos y a sus relaciones de género.
International Monetary Fund Annual Report 2020 Financial Statements
Authors:   International Monetary Fund. Secretary's Department
Published: November 2020

The audited consolidated financial statements of the International Monetary Fund as of April 30, 2020 and 2019
Should Inequality Factor into Central Banks' Decisions?
Authors: Hansen Niels-Jakob , Lin Alessandro , Mano Rui
Published: November 2020

Inequality is increasingly a concern. Fiscal and structural policies are well-understood mitigators. However, less is known about the potential role of monetary policy. This paper investigates how inequality matters for monetary policy within a tractable Two-Agent New Keynesian model that captures important dimensions of inequality. We find some support for making inequality an explicit target for monetary policy, particularly if central banks follow standard Taylor rules.
Capital Gaps, Risk Dynamics, and the Macroeconomy
Authors: Lipinsky Fabian , Miescu Mirela
Published: November 2020

Motivated by the increasing interest in analyzing the links between the financial sector and the real economy, we develop a macro-financial structural model with two novel features. First, we include idiosyncratic and aggregate risk in a tractable general equilibrium model. This allows us to capture sectoral dynamics and the probabilities of default of both firms and financial intermediaries, and the feedback between them. Second, we introduce the concept of sticky (observed) versus flexible
(agents’ target) capital. The identified differences between realized and optimal values — the capital gaps of firms and banks — lead financial and business cycles, and cause gaps in credit spreads and asset prices. The model can be used as a signaling device for macroprudential intervention, and to gauge whether macroprudential action was successful ex-post (e.g., whether gaps were closed). For illustration, we show how the analysis of gaps can be applied to the U.S. economy using Bayesian estimation techniques.
Firewood residential heating – local versus regional influence on the
aerosol burden
Authors: Betancourt Clara , Küppers Christoph , Sager Uta , Hoyer Andrea B. , Kaminski Heinz , Rapp Gerhard , John Astrid C. , Küpper Miriam , Quass Ulrich , Kuhlbusch Thomas , Rudolph Jochen , Kiendler-Scharr Astrid , Gensch Iulia
Published: November 2020

Abstract. We report the first-time use of the Lagrangian Particle Dispersion Model (LPDM) FLEXPART to simulate isotope ratios of the biomass burning tracer levoglucosan. Here, we combine the model results with observed levoglucosan concentrations and δ13C to assess the contribution of local vs. remote emissions from firewood domestic heating to the particulate matter sampled during the cold season at two measurements stations of the Environmental Agency of North Rhine-Westphalia, Germany. For the investigated samples, the simulations indicate that the largest part of the sampled aerosol is 1 to 2 days old, and thus originates from local to regional sources. Consequently, photo-chemical aging, also limited by low mean OH concentrations in the cold season, has a minor influence the observed levoglucosan concentration and δ13C. The retro plume ages agree well with those derived from observed δ13C, (the isotopic ages), demonstrating that the limitation of backwards calculations to seven days for this study doesn't introduce any significant bias. A linear regression analysis applied to the experimental levoglucosan δ13C vs. the inverse concentration confirms the young age of aerosol. The high variability in the observed δ13C implies that the local levoglucosan emissions are characterized by very different isotopic ratios in the range of −25.3 to −21.4 ‰. These values are in good agreement with previous studies on levoglucosan source specific isotopic composition in biomass burning aerosol. Comparison between measured and estimated levoglucosan concentrations suggest that emissions are underestimated by a factor of two on average. These findings demonstrate that the aerosol burden from home heating in residential areas is not of remote origin and thus it can be mitigated by reducing local emissions. In this work we show that combining Lagrangian modelling with isotope ratios is valuable to obtain additional insight in source apportionment. Error analysis shows that the largest source of uncertainty is limited information on isotope ratios of levoglucosan emissions. Based on the observed low extent of photochemical processing during cold season, levoglucosan can be used under similar conditions as a conservative tracer without introducing substantial bias.
Quantitative comparison of measured and simulated O4 absorptions for one day with extremely low aerosol load over the tropical Atlantic
Authors: Wagner Thomas , Dörner Steffen , Beirle Steffen , Donner Sebastian , Kinne Stefan
Published: November 2020

Abstract. In this study we compare measured and simulated O4 absorptions for conditions of extremely low aerosol optical depth (between 0.034 to 0.056 at 360 nm) on one day during a ship cruise in the tropical Atlantic. For such conditions, the uncertainties related to imperfect knowledge of aerosol properties don't significantly affect the comparison results. We find that the simulations underestimate the measurements by 15 % to 20 %. Even for simulations without any aerosols the measured O4 absorptions are still systematically higher than the simulation results. The observed discrepancies can not be explained by uncertainties of the measurements and simulations and thus indicate a fundamental inconsistency between simulations and measurements.
Studying the large-scale effect of leaf thermoregulation using an
Earth system model
Authors: Heidkamp Marvin , Ament Felix , de Vrese Philipp , Chlond Andreas
Published: November 2020

Abstract. Plants have the ability to regulate heat and water losses. This process also known as leaf thermoregulation helps to maintain the leaf temperature within an optimal range. In a number of laboratory and field experiments, the leaf temperature has been found to deviate substantially from the ambient temperature. In the present study, we address the question of whether the negative correlation between the leaf temperature excess and the ambient air temperature, which is characteristic of leaf thermoregulation, constitutes a robust feature at larger scales, across a broad range of atmospheric conditions and canopy characteristics. To this end, we developed a new dual-source canopy layer energy balance scheme (CEBa) and implemented it into JSBACH, the land component of the Max Planck Institute for Meteorology's Earth system model (MPI-ESM). The approach calculates the temperature and humidity in the ambient canopy air space, the temperature of the ground surface, and the temperature of the leaf as well as the energy and moisture fluxes between the different compartments. Here leaf thermoregulation is investigated using different modeling approaches, namely a zero-dimensional instantaneous solution of the energy balance as well as offline FLUXNET site experiments and coupled global simulations. With the help of the simulations at the site-level, we can show that the model is capable of reproducing the effect of leaf thermoregulation even though the simulated signal at the canopy scale is less pronounced than indicated by measurements at the leaf scale. However, on a global scale and over longer-timescales, this negative correlation is only simulated in idealized setups that neglect limitations on the plant available water, and even then, the signal is less pronounced than indicated by the short-term observations of individual leaves. When accounting for moisture limitations, we predominantly find positive correlations between leaf temperature excess and the ambient air temperature.
Proglacial icings as records of winter hydrological processes
Authors: Chesnokova Anna , Baraër Michel , Bouchard Émilie
Published: November 2020

Abstract. The ongoing warming of cold regions is affecting
hydrological processes, causing deep changes, such as a ubiquitous increase
in river winter discharges. The drivers of this increase are not yet fully
identified mainly due to the lack of observations and field measurements in
cold and remote environments. In order to provide new insights into the
sources generating winter runoff, the present study explores the possibility
of extracting information from icings that form over the winter and are
often still present early in the summer. Primary sources detection was
performed using time-lapse camera images of icings found in both proglacial
fields and upper alpine meadows in June 2016 in two subarctic glacierized
catchments in the upper part of the Duke watershed in the St. Elias
Mountains, Yukon. As images alone are not sufficient to entirely cover a
large and hydrologically complex area, we explore the possibility of
compensating for that limit by using four supplementary methods based on
natural tracers: (a) stable water isotopes, (b) water ionic content, (c) dissolved organic carbon, and (d) cryogenic precipitates. The interpretation of
the combined results shows a complex hydrological system where multiple
sources contribute to icing growth over the studied winter. Glaciers of all
sizes, directly or through the aquifer, represent the major parent water
source for icing formation in the studied proglacial areas. Groundwater-fed
hillslope tributaries, possibly connected to suprapermafrost layers, make up
the other detectable sources in icing remnants. If similar results are
confirmed in other cold regions, they would together support a multi-causal
hypothesis for a general increase in winter discharge in glacierized
catchments. More generally, this study shows the potential of using icing
formations as a new, barely explored source of information on cold region
winter hydrological processes that can contribute to overcoming the paucity
of observations in these regions.
Los dezires de Gonzalo Martínez de Medina en el Cancionero de Llavia (ID 0511 e ID 6005)
Authors: Martínez Pérez Antonia
Published: November 2020

En el Cancionero de Llavia se incluyen dos dezires de Gonzalo Martínez de Medina: “Dime quién eres tu grande Aníbal” [86* RL-19; ID 0511]; y “Por desconoscentia se perdió la luz” [86* RL-20; ID 6005], sobre los que no se ha llevado a cabo ningún estudio, al menos de carácter monográfico, constituyendo, pues, su análisis el objetivo primordial de este trabajo. El conocimiento de su obra poética se ha realizado casi tan solo a través del Cancionero de Baena, siendo pues imprescindible un estudio de estos dos dezires, que no se encuentran en él, y constituyen los dos únicos especímenes conocidos fuera del mismo. Asimismo, el análisis de su inserción en el Cancionero de Llavia muestra su perfecta integración de contenido y estructura, proporcionando datos fundamentales sobre los trazos poéticos distintivos de Gonzalo Martínez.
«Et tot açò vehia l'emperador de son palau»: Muntaner y la llegada de los almogávares a Constantinopla (una lectura del capítulo 202 de la Crònica)*
Authors: Aguilar Ávila Josep Antoni
Published: November 2020

El presente artículo analiza el capítulo 202 de la Crònica de Ramón Muntaner, que narra la llegada a Constantinopla de la Compañía Catalana en septiembre de 1303 y el combate que poco después enfrentó al ejército almogávar con un contingente genovés en las afueras de la ciudad. De una parte, se examina la versión que Muntaner da de los hechos a la luz de la ofrecida en la Historia de Jorge Paquimeres, ejercicio del que se desprende que el cronista catalán silencia deliberadamente los detalles más controvertidos del episodio. De otra parte, se identifican los principales mecanismos narrativos de los que Muntaner se sirve para forjar su relato, que remiten a motivos presentes en la tradición del roman courtois.
Posibles textos desconocidos de Ángel Saavedra, Duque de Rivas, según el hispanista grancés G. Boussagol
Authors: Arroyo Almaraz Antonio
Published: November 2020

El trabajo recoge una serie de textos que aparecieron en los periódicos El Redactor General y en El Procurador General de la Nación y del Rey, en los años 1812 y 1813, firmados con las iniciales A. S. que, siguiendo las aportaciones del hispanista francés Gabriel Boussagol, nos permiten llegar a la conclusión de que fueron escritos por Ángel Saavedra, Duque de Rivas.
Mobility of Informal Sector Migrant Workers: History, Process, and Model of Decision to Settle in the Destination Area
Authors: Eka Nilakusmawati Desak Putu , Made Srinadi I Gusti Ayu
Published: November 2020

This study determines the mobility of informal sector migrant workers from outside Bali in Denpasar City, Bali, Indonesia including the history of mobility before arriving in Denpasar City, the mobility process, and the decision model for settling in the destination area. The research was conducted in two locations in Denpasar City, namely West Denpasar District and South Denpasar District. The research data were collected by interview using a questionnaire and sampling was done by purposive sampling. History of mobility of migrant workers before arriving in Denpasar City, had lived in other places before their current place. The previous residence was another village in one sub-district and another sub-district in Denpasar City. The most reason for the decision to do mobility is dominated by the reason for getting a job. The reason for migrants to choose to work in Denpasar City is because the salaries/wages are higher than in their home areas and it is easier to find job than in their home regions. Most of respondents waited for their first job ≤3 weeks, with the source of assistance in getting the first job dominated by assistance from family/relatives. The source of assistance in finding a place to live for the first time, partly by their ownself, and the rest are accommodated by relatives/family. Significant factors influencing migrants' decision to plan to settle in the destination are the variables of Age, working hours per day, status of home ownership, source of assistance for first-time residence, and sub-district of the respondent's residence.
On the Normativity of Nietzsche's Will to Power
Authors: Dunkle Ian D.
Published: November 2020

A prominent tradition in Nietzsche scholarship reads his views about will to power as a psychological thesis and his claims about the value of power as an attempt to derive normativity from psychological necessity. This article shows that these interpretations have failed to articulate a cogent reading faithful to Nietzsche's texts, and so casts doubt on such an approach. My argument bears not only on how we read Nietzsche, but also on the viability of one recent constitutivist theory. After presenting these critical arguments, I consider an original interpretation of will to power in terms of the motivation to grow. This revised interpretation, however, still fails to support the derivation of normativity. Thus, I conclude we should look elsewhere for Nietzsche's normative argument.
A Nietzsche for Our Times? Andrew Huddleston on Nietzsche on the Decadence and Flourishing of Culture
Authors: Gjesdal Kristin
Published: November 2020

This article, a version of which was presented in January 2020 to the North American Nietzsche Society at the American Philosophical Association Eastern Division Meeting, is a commentary on Andrew Huddleston's 2019 monograph, Nietzsche on the Decadence and Flourishing of Culture. While praising Huddleston's balancing of systematic and critical scholarship, the article also takes up the wider framework in which Nietzsche's contribution should be understood and the possible limitations to his philosophical contribution.
Nietzsche on the Decadence and Flourishing of Culture: Reply to Critics
Authors: Huddleston Andrew
Published: November 2020

This article was presented in January 2020 to the North American Nietzsche Society at the American Philosophical Association Eastern Division Meeting as part of a book symposium on Andrew Huddleston's Nietzsche on the Decadence and Flourishing of Culture (2019). Here the author replies to critical commentaries by Kristin Gjesdal and Jacqueline Scott.
The Occurrence and Origin of Pentlandite-Chalcopyrite-Pyrrhotite Loop Textures in Magmatic Ni-Cu Sulfide Ores
Authors: Barnes Stephen J. , Taranovic Valentina , Schoneveld Louise E. , Mansur Eduardo T. , Le Vaillant Margaux , Dare Sarah , Staude Sebastian , Evans Noreen J. , Blanks Daryl
Published: November 2020

Pentlandite is the dominant Ni-hosting ore mineral in most magmatic sulfide deposits and has conventionally been interpreted as being entirely generated by solid-state exsolution from the high-temperature monosulfide solid solution (MSS) (Fe,Ni)1–xS. This process gives rise to the development of loops of pentlandite surrounding pyrrhotite grains. Recently it has been recognized that not all pentlandite forms by exsolution. Some may form as the result of peritectic reaction between early formed MSS and residual Ni-Cu–rich sulfide liquid during differentiation of the sulfide melt, such that at least some loop textures may be genuinely magmatic in origin. Testing this hypothesis involved microbeam X-ray fluorescence mapping to image pentlandite-pyrrhotite-chalcopyrite intergrowths from a range of different deposits. These deposits exemplify slowly cooled magmatic environments (Nova, Western Australia; Sudbury, Canada), globular ores from shallow-level intrusions (Norilsk, Siberia), extrusive komatiite-hosted ores from low and high metamorphic-grade terranes, and a number of other deposits. Our approach was complemented by laser ablation-inductively coupled plasma-mass spectrometry analysis of palladium in varying textural types of pentlandite within these deposits. Pentlandite forming coarse granular aggregates, together with loop-textured pentlandite where chalcopyrite also forms part of the loop framework, consistently has the highest Pd content compared with pentlandite clearly exsolved as lamellae from MSS or pyrrhotite. This is consistent with much of granular and loop pentlandite being formed by peritectic reaction between Pd-rich residual sulfide liquid and early crystallized MSS, rather than forming entirely by subsolidus grain boundary exsolution from MSS, as has hitherto been assumed. The wide range of Pd contents in pentlandite in individual samples reflects a continuum of processes between peritectic reaction and grain boundary exsolution. Textures in metamorphically recrystallized ores are distinctly different from loop-textured ores, implying that loop textures cannot be regenerated (except in special circumstances) by metamorphic recrystallization of original magmatic-textured ores. The presence of loop textures can therefore be taken as evidence of a lack of penetrative deformation and remobilization at submagmatic temperatures, a conclusion of particular significance to the interpretation of the Nova deposit as having formed synchronously with the peak of regional deformation at temperatures within the sulfide melting range.
The Nature and Composition of the J-M Reef, Stillwater Complex, Montana, USA
Authors: Christopher Jenkins M. , Mungall James E. , Zientek Michael L. , Holick Paul , Butak Kevin
Published: November 2020

In this contribution, we analyze 30 years of mine development data and quantitatively identify the processes that control the grade and tenor of the mineralized rock. An assay database of more than 60,000 samples was used to examine variations in ore grade and tenor of the sulfide mineralization in the J-M reef horizon of the Stillwater Complex along the strike and down the dip of the deposit in the area of the Stillwater mine. We compare these results with data from the East Boulder mine and whole-rock lithogeochemistry of samples collected along the entire strike length of the complex. We find significant variation in the composition of the reef sulfides in different spatial domains of the Stillwater mine area and between the Stillwater and East Boulder mines. Most of the variation in the grade and tenor can be explained by a variation in the mass of silicate magma with which the sulfide liquid equilibrated (i.e., R factor); however, geochemical and textural evidence suggests that parts of the reef may have experienced significant S loss following initial sulfide melt segregation. Some variability in the reef tenor and grade can be attributed to variable amounts of sulfur loss due to low-temperature hydrothermal fluids and the overestimation or underestimation of metal concentrations in reef assays due to the nugget effect. Furthermore, we address the Pd/Pt ratio of the reef samples and suggest that the lower solubility of Pt in the parental silicate melt may have caused the crystallization and removal of Pt alloys at some point before the melt reached sulfide saturation and Pt could partition into the sulfide liquid. This disparity between the prior evolution of Pt and Pd in the silicate melt resulted in the observed Pd/Pt ratio of ~3.65 across all areas of the reef—a value significantly larger than anticipated for primitive mantle-derived magmas.
Investigating Nonnative TEFL Students’ Self-Regulation in an Online Learning Environment
Authors: Khalil Safaa M.
Published: November 2020

Coping with technological revolution has become unavoidable in the educational process. In addition to the various advantages of integrating technology into the traditional classroom, utilizing it has been compulsory as an inevitable solution to a global crisis such as the Coronavirus pandemic that we face these days. The present study, using a case study design, aims at exploring self-regulatory strategies that undergraduate university students practice while engaging in virtual classrooms. Participants of the study were 187 university students from all levels. They are all majoring in Teaching English as a Foreign Language (TEFL). Data were collected using mixed method approach in which two tools of measurement were used in the research. An online questionnaire was administered to the participants, then online focus group interviews were conducted. Data gathered were analyzed statistically and findings revealed that non-native TEFL students are high-level self-regulatory learners with no significant effect of university level on students’ self-regulation. In addition, pedagogical recommendations were displayed.
Effectiveness and safety of the enhanced recovery program in colorectal surgery: overview of systematic reviews
Authors: Chacón Acevedo Kelly Rocío , Cortés Reyes Édgar , Guevara Cruz Óscar Alexander , Díaz Rojas Jorge Augusto , Rincón Martínez Lina María
Published: November 2020

Introduction: Multimodal enhanced recovery programs are a new paradigm in perioperative care. Objective: To evaluate the certainty of evidence pertaining to the effectiveness and safety of the multimodal perioperative care program in elective colorectal surgery. Data source: A search was conducted in the Medline, EMBASE, and Cochrane databases, up until February 2020. Eligibility criteria: Systematic reviews that take into account the perioperative multimodal program in patients with an indication for colorectal surgery were included. The primary outcomes were morbidity and postoperative deaths. The secondary outcome was hospital length of stay. Study quality and synthesis method: The reviews were evaluated with AMSTAR-2 and the certainty of the evidence with the GRADE methodology. The findings are presented with measures of frequency, risk estimators, or differences. Results: Six systematic reviews of clinical trials with medium and high quality in AMSTAR-2 were included. Morbidity was reduced between 16 and 48%. Studies are inconclusive regarding postoperative mortality. Hospital length of stay was reduced by an average of 2.5 days (p <0.05). The certainty of the body of evidence is very low. Limitations: The effect of the program, depending on the combination of elements, is not clear. Conclusions and implications: Despite the proven evidence that the program is effective in reducing global postoperative morbidity and hospital stay, the body of evidence is of very low quality. Consequently, results may change with new evidence and further research is required.
The Effects of Temperature and Potassium Fertilizer on the Growth, Yield, and Biochemical Parameters of Ipomoea batatas var. Antin-1
Authors: Sulistiani Rini , Rosmayati - , Siregar Luthfi A. M. , Harahap Fauziyah
Published: November 2020

The impact of temperature and potassium fertilizers on the growth, yield, and basic biochemical characteristics of sweet potato, Ipomoea batatas var. Antin- 1, was investigated in lowland and highland terrains. In this study we aimed to determine the different traits of the sweet potato, based on its morphology, physiology, and biochemical composition, following treatments with a potassium fertilizer at different temperatures. The study was undertaken using a nested factorial design. The first factor was temperature at each of the two sites: T1 (lowland) and T2 (highland). The second factor was potassium fertilizer (K2O) nested within the temperature factor and consisting of four levels of K: K0 (0 kg/ha), K1 (50 kg/ha), K2 (100 kg/ha), and K3 (150 kg/ha). Each potassium treatment was replicated three times at each location. Plant vegetative growth in the lowland region, with a daily average temperature of 26.8 °C, tended to be more bushy, with several different morphological properties: The main stem was longer (160.7 cm) and spreading, the stem diameter was greater, and the petioles were significantly longer in the lowland plants compared with the highland plants; however, no differences were observed in the leaf characteristics. The differential temperature (depending on altitude) resulted in significant differences in relative growth rates (RGR) and net assimilation rates (NAR); the values for RGR-1 and NAR-1 in the lowlands were higher than those in the highlands. The tuber weight, yield index, anthocyanin accumulation, and glucose content were significantly higher in the highland crops than in the lowland plants, which grew under relatively higher temperatures. Potassium applications caused significant differences in the anthocyanin content (mg/100 g fresh weight), anthocyanin production (kg/ha), and glucose production (kg/ha) at different locations.