bluuebunny/crossref_metadata_2025 huggingface dataset:
NATO’s experience in shaping the content of the information and analytical competence of Alliance staff in terms of strategic planning
Authors: VOLOBUYEVA G.
Published: February 2020

The article shows the content of information and analytical competence within the framework of strategic planning in the North Atlantic Alliance. Also the components of the research methodology as theoretical basis for the formation of relevant competencies are analyzed.
Manipulation with human consciousness as the мain method of conducting the election compaigns
Authors: FURASHEV V. , SAMCHINSKA O.
Published: February 2020

Investigation of the essence of manipulation as the main way of running political campaign for elections.
Peculiarities of the subject composition of information relations in the conditions of Іndustry 4.0
Authors: BEZHEVETS A.
Published: February 2020

The article is devoted to the study of the current state of scientific ideas and concepts of information relations in the conditions of the fourth industrial revolution. Given the potential expansion of artificial intelligence, modern theories of the subject of law and features of the subject composition of information relations are considered.
Features of legal regulation of electronic business agreements in Ukraine
Authors: MANGORA V.
Published: February 2020

The article explores the features of the legal regulation of electronic business agreements at the present stage in Ukraine. The current legislation governing  electronic business agreements in Ukraine has been analyzed. Different perspectives on the form of electronic contracts in modern legal science have been analyzed. The main problems of legal regulation of business electronic agreements are identified. Proposals have been made to improve the current legislation governing  electronic business agreements in Ukraine.
Possibilities of adapting foreign legal support for activities and organization of military counter-intelligence agencies
Authors: KRAVCHENKO R.
Published: February 2020

Ukraine's course on European integration requires an active search for effective mechanisms of participation in the construction of modern European security architecture. Based on the analysis of legislative acts in the field of counterintelligence support of the armed forces of the EU States, the author has identified legal solutions that can be adapted into national legislation in order to increase the effectiveness of counter-intelligence support of the Armed Forces of Ukraine by the military counter-intelligence bodies of the Security Service of Ukraine, as well as improvements in legislative support for the activities and organizational construction of military counter-intelligence bodies of the Security Service of Ukraine. Here it is presented scientifically based research proposals, which are essential for improving the legislative basis of the activities of military counterintelligence bodies on counterintelligence support of military formations of Ukraine.
Collaboration with City Agencies: A Winning Approach to Community Assessment
Authors: Reifsnider Elizabeth , Dominguez Amy , Friesenhahn Jana , Hodges Pamela , Chapin Candace , Sims W Bryan
Published: February 2020

Five graduate nursing students made a difference in the health of San Antonio citizens by conducting a community assessment as part of a standard clinical activity in their community health nursing course. The students and their professor were able to effect city-wide change for health protection and promotion through collaboration with the City of San Antonio Planning Department (CSAPD). By compiling information, linking organizations, and speaking before community groups about the importance of a fluoridated water supply, the students generated public interest and momentum, which resulted in a successful vote to add fluoride to the water supply. In addition, they were able to add to the assessment compiled by the Planning Department employees and increase the CSAPD's awareness of health concerns as an important area to assess within a community. The resulting assessment was more comprehensive than it would have been without the students' input. This use of collaboration provides a model other faculty may adopt for community assessment.
Blending Aesthetics and Empirics: Teaching Health Assessment in an Art Gallery
Authors: Pardue Karen T.
Published: February 2020

An art gallery was used successfully as a clinical laboratory for nursing students studying health assessment. Art galleries provide students with a visually rich and stimulating environment that can support the development of astute visual inspection skills. Working in pairs, students examined artwork incorporating design elements common to both physical assessment and artistic inquiry. Students described new learning and clinical application through this innovative laboratory experience. Uniting traditionally empirical coursework with an aesthetic learning opportunity is important in the development of caring, humanistic professionals.
Segmentation of Magnetic Resonance Brain Images Using the Advanced Ant Colony Optimization Technique
Authors: Sandhya G. , Kande Giri Babu , Savithri T. Satya
Published: February 2020

MR Brain Image Segmentation is an important step in brain image analysis. It facilitates the automatic interpretation or diagnosis that helps in surgical planning, estimating the changes in the brain’s volume for various types of tissues, and recognizing different neural disorders. Many neurological disorders like epilepsy, Alzheimer’s, tumor, and cancer can be effectively quantified and analyzed by finding the volume of the brain tissues such as White Matter (WM), Gray Matter (GM), and Cerebro Spinal Fluids (CSF). In manual segmentation of brain MRIs physicians manually determines the boundaries of different objects of interest and it is time-consuming and difficult. Thus, several accurate automatic brain MRI segmentation techniques with different levels of complexity have been proposed. This paper proposes an advanced thresholding technique for the segmentation of brain MRIs based on the biologically inspired Ant Colony Optimization (ACO) algorithm. Here the texture features are assumed as heuristic data. The experimental results for the T1-weighted brain MRIs have shown high accuracy than the conventional such as Fuzzy C-Means (FCM), Expectation-Maximization (EM), Improved Bacterial Foraging Algorithm (IBFA), and Improved Particle Swarm Optimization (IPSO).
Automated QT Interval Measurement Using Modified Pan-Tompkins Algorithm with Independent Isoelectric Line Approach
Authors: Jumahat Shaliza , Beng Gan Kok , Misran Norbahiah , Islam Mohammad Tariqul , Mahri Nurhafizah , Ja’afar Mohd Hasni
Published: February 2020

The QT interval on the electrocardiogram (ECG) signal is known to have an important role in monitoring heart’s electrical activity because the presence of QT interval prolongation can be associated with life-threatening cardiac events. This interval can be identified and measured using either manual or automated techniques. Currently, studies on automated QT interval measurement algorithms are becoming a growing field, as they can provide the best solution to overcome misdiagnosis and timely issues resulting from manual identification. However, the physiological variability of the QRS complex and the fluctuation of the isoelectric line are prevalent issues that need to be considered in the automatic method. In this report, an algorithm to identify the QRS onset and T-wave offset for measuring the corrected QT interval (QTc) is proposed. This method uses an improved Pan-Tompkins algorithm from the previous work with independent of the isoelectric line approach for detecting the QRS onset and the T offset. The algorithm was implemented in Matlab and applied to the 60 seconds duration of 27 records in the PPUKM database with a sampling frequency of 500 Hz. The performance of the algorithm achieved a sensitivity of 100% for QRS onset detection and 100% for T offset detection. As for the accuracy, the algorithm’s performance obtained 100% for QRS onset detection and 99.56% for T offset detection. The mean error results with respect to manual annotation were 37±18.5 ms for QRS onset detection and 32±22.3 ms for T offset detection which was within ANSI/AAMI-EC57:1998 standard tolerance. The proposed algorithm exhibits reliable automated QTc measurement. Besides insensitive to morphological variations of ECG waves, the computational method is simple and possibly implemented as the basis for future software development for portable device applications.
Morphology and Composition of Lead-Cadmium Sulfide Photo-Sensitive Films
Authors: Miroshnikova Irina N. , Maskaeva Larisa N. , Miroshnikov Boris N. , Belov Vladislav S. , Vaganova Irina V.
Published: February 2020

CdxPb1-xS films with a thickness of 620 and 680 nm were prepared by chemical precipitation from a reaction mixture containing lead salt, thiourea, alkali and cadmium acetate. The concentration of cadmium acetate was 0.01 and 0.1 mol/l. Electron-microscopic studies showed a fundamental difference in the morphology of the CdxPb1-xS thin films with a 10-fold difference in the concentration of cadmium acetate in the reaction bath. The results of energy dispersive analysis indicate the nonstoichiometry of the synthesized films on sulfur. Auger spectrometry revealed a high content of oxygen in the surface layer of the thin film coating CdxPb1-xS (up to 10 and 40 at. %). In the sample obtained from the reaction bath containing 0.01 mol / l of cadmium acetate, after ion etching at a depth of more than 30 nm, no oxygen was detected. In a sample prepared with a cadmium acetate content of up to 0.1 mol/l, the oxygen content does not exceed 3 at. %
Counselling in physiotherapy
Authors: Mathias A.
Published: February 2020

No abstract available.
Table of Contents Vol 25 (2019)
Authors: Office Editorial
Published: February 2020

No abstract available.
Labor Market Dynamics, Informality and Regulations in Latin America
Authors: David Antonio , Pienknagura Samuel , Roldos Jorge
Published: February 2020

Labor markets in Latin America and the Caribbean (LAC) are characterized by high levels of informality and relatively rigid regulation. This paper shows that these two features are related and together make the speed of adjustment of employment to shocks slower, especially when regulations are tightly enforced. Evidence suggests that strict labor market regulations also have an adverse effect on medium-term growth. While both regulations on prices (minimum wages) and quantities (employment protection) decrease the speed of adjustment to shocks, they appear to be binding in different phases of the cycle—the former affects mostly the (net) job creation margin and the latter the (net) job destruction margin. The results also highlight possible interactions between labor market regulations and the effectiveness of macro-stabilization tools—including exchange rate depreciation.
Guyana
Authors: Chow Julian
Published: February 2020

Guyana’s residential real estate prices have been rising, particularly in the capital city Georgetown, following the discovery of oil in 2015. In line with the growing demand for housing, commercial banks’ housing loans have increased, prompting higher household debt. This paper presents two analyses which suggest that housing prices in Georgetown and banks’ lending to the housing sector appear to be in their early stages of growth. However, given the data limitations and caveats that underpin the analyses, the findings could also indicate early signals of possible risks. Further data collection would support surveillance and deeper studies. At the same time, enhancing prudential measures would help safeguard financial and macroeconomic stability. These include strengthening the monitoring of the housing market, bank lending practices and household debt, as well as fortifying the macroprudential framework, including with more effective toolkits for early intervention.
Where Should We Go? Internet Searches and Tourist Arrivals
Authors: Cevik Serhan
Published: February 2020

The widespread availability of internet search data is a new source of high-frequency information that can potentially improve the precision of macroeconomic forecasting, especially in areas with data constraints. This paper investigates whether travel-related online search queries enhance accuracy in the forecasting of tourist arrivals to The Bahamas from the U.S. The results indicate that the forecast model incorporating internet search data provides additional information about tourist flows over a univariate approach using the traditional autoregressive integrated moving average (ARIMA) model and multivariate models with macroeconomic indicators. The Google Trends-augmented model improves predictability of tourist arrivals by about 30 percent compared to the benchmark ARIMA model and more than 20 percent compared to the model extended only with income and relative prices.
How Big are Fiscal Multipliers in Latin America?
Authors: Restrepo Jorge
Published: February 2020

This paper uses the strategy and data of Blanchard and Perotti (BP) to identify fiscal shocks and estimate fiscal multipliers for the United States. With these results, it computes the cumulative multiplier of Ramey and Zubairy (2018), now common in the literature. It finds that, contrary to the peak and through multipliers reported by BP, the cumulative tax multiplier is much larger than the cumulative spending one. Hence, the conclusions depend on the definition of multiplier. This methodology is also used to estimate the effects of fiscal shocks on economic activity in eight Latin American countries. The results suggest that the fiscal multipliers vary significantly across countries, and in some cases multipliers are larger than previously estimated.
Detection of the cloud liquid water path horizontal inhomogeneity in a coastline area by means of ground-based microwave observations: feasibility study
Authors: Kostsov Vladimir S. , Ionov Dmitry V. , Kniffka Anke
Published: February 2020

Abstract. The improvement of cloud modelling for global and regional climate and weather studies requires comprehensive information on many cloud parameters. This information is delivered by remote observations of clouds from ground-based and space-borne platforms using different methods and processing algorithms. Cloud liquid water path (LWP) is one of the main obtained quantities. Previously, the measurements of LWP by the SEVIRI and AVHRR satellite instruments provided the evidences of the systematic differences between LWP values over land and water areas in Northern Europe. An attempt is made to detect such differences by means of ground-based microwave observations performed near the coastline of the Gulf of Finland in the vicinity of St. Petersburg, Russia. The microwave radiometer RPG HATPRO located 2.5 km from the coastline is functioning in the angular scanning mode and is probing the air portions over land (at elevation angle 90°) and over water area (at 7 elevation angles in the range 4.8°–30°). The problem of the LWP horizontal gradient detection is examined in the measurement domain: the brightness temperatures of the microwave radiation measured at different elevation angles in the 31.4 GHz and 22.24 GHz spectral channels are analysed and compared with the corresponding values which were calculated under the assumption of horizontal homogeneity of the atmosphere. Several specific cases, selected on the basis of the analysis of the satellite observations by the SEVIRI instrument were considered in detail including: clear-sky conditions, the presence of clouds over the radiometer and at the same time the absence of clouds over the Gulf of Finland, and overcast conditions over the radiometer and over the opposite shore of the Gulf of Finland. The influence of the land-sea LWP difference on the brightness temperature values in the 31.4 GHz spectral channel has been demonstrated and the following features have been detected: (1) an interfering systematic signal is present in the 31.4 GHz channel which can attributed to the humidity horizontal gradient; (2) clouds over the opposite shore of the Gulf of Finland mask the LWP gradient effect. Preliminary results of the retrieval of LWP over water by statistical regression method are presented. These monthly averaged results are compared to the corresponding values derived from the satellite observations by the SEVIRI instrument. The agreement between satellite and ground-based results is very good for warm season in terms of temporal behaviour if systematic difference is neglected.
Estado, mercado e formas de privatização: a influência dos think tanks na política educacional brasileira
Authors: Mendes Valdelaine Da Rosa , Peroni Vera Maria Vidal
Published: February 2020

Há, especialmente no século XXI, uma proliferação dos think tanks que operam como produtores e influenciadores de ideias acerca do mercado, que defendem a redução do intervencionismo estatal nas tomadas de decisões. Este estudo tem como objetivo discutir a influência que têm exercido na organização das políticas educacionais de forma a alargar e intensificar a penetração dos interesses do mercado na área educacional. Para alcançar este propósito, é realizada uma discussão sobre as formas de privatização que têm levado a lógica do mercado para o interior das políticas educacionais. É traçado um panorama da distribuição dessas organizações no mundo, com as características de seus financiadores e apoiadores. Por fim, são apresentados os princípios que orientam as ações de três think tanks: um estadunidense e dois brasileiros, com foco nas questões educacionais. Este estudo demonstrou que os interesses do capital, representados por organizações financiadas por grandes empresas (com capacidade de penetração na imprensa, nos governos, nas universidades, nas mídias sociais, na indústria cultural), pretendem claramente determinar ao Estado uma perspectiva privada na definição e na concepção das políticas educacionais.
An Algorithmic Approach to Modelling the Co-Evolution of Parasites and Their Hosts
Authors: Mode Charles J.
Published: February 2020

This paper is a reformulation of the paper, Mode 1958 Evolution 12:158 - 165, which was written in terms of a deterministic paradigm, using di erential equations In this paper, however, the working paradigm will be stochastic, and from the mathematical point of view, it will be a stochastic process that may be viewed as a branching process within a branching process. In particular, it will be assumed that the population of host plants will evolve as a multitype branching process, and the pathogen, which grows on the leaves of the host in every generation of the host, will also be assumed to evolve as a multitype branching processes during each generation of the host. The contents of this paper, were motivated by problems in Agriculture in which Plant Pathologists and Plant Breeders work together to control the damage inflicted by a pathogen on a growing crop of a cultivar such as flax, wheat. and many other cultivars. The focus of attention in this paper is the development of algorithms that will guide the development of software to run Monte Carol simulation experiments taking into account mutations in the host and pathogen. The writing of software to implement the algorithms developed in this paper would require a major e ort, and is, therefore, beyond the scope of this paper
BlueHelp
Authors: Cunha Marcelo Machado , Buarque Leila Couto de Matos , Neves Alisson Oliveira , Silva Bruno , Arnaldo Júnior Jadir
Published: February 2020

Este trabalho visa o estudo e implementação de um software de automação residencial voltado para pessoas que possuem mobilidade reduzida. O sistema, chamado de BlueHelp, deve auxiliar em algumas pequenas atividades do dia a dia das pessoas, permitindo que o usuário consiga controlar sua residência com facilidade através de um aplicativo para smartphone conectado via bluetoot a um microcontrolador. Todas as principais atividades do usuário serão registradas em um banco de dados em um servidor web, possibilitando que os responsáveis pelo usuário consultem-no a qualquer momento de forma simples e prática.
Pharmabook – Um Ambiente Colaborativo para Pesquisa de Preços e Controle de Estoque Pessoal de Medicamentos
Authors: Ferreira Rafael V. B. , Lamblet Irlon S. , Aguilar Carolina L. , Silva Luis C. B. , Escalfoni Rafael E. L.
Published: February 2020

O acesso a medicamentos é parte fundamental para melhoria da qualidade de vida das populações. Com o aprimoramento das condições de tratamentos e o aumento da expectativa de vida, o consumo de medicamentos tem crescido, constituindo um dos itens de maior impacto no orçamento doméstico. O presente artigo apresenta o Pharmabook, um ambiente colaborativo que visa facilitar o acesso a informação sobre preços de medicamentos, como também, auxiliar no controle do estoque pessoal de medicamentos, visando um melhor planejamento das compras.
Avaliação automática de versões oculares em imagens
Authors: Pinheiro Jullyana Fialho , de Almeida João Dallyson Sousa , Teixeira Jorge Antonio Meireles , Braz Junior Geraldo
Published: February 2020

Uma visão que atenda as demandas visuais básicas como visão a curta e longa distância, visão lateral, entre outras necessita do funcionamento satisfatório dos músculos oculares. Pessoas que possuam algum problema em um dos músculos oculares podem apresentar problemas como o estrabismo. Este trabalho apresenta um método automático para realizar o exame de medida das versões oculares por meio de imagens da face do paciente.
On the Use of Fully Convolutional Networks on Evaluation of Infrared Breast Image Segmentations
Authors: de Melo Rafael H. C. , Conci Aura , Vasconcelos Cristina Nader
Published: February 2020

Medical images usually must have their region of interest (ROI) segmented as a first step in a pattern recognition procedure. Automatic segmentation of these images is an open issue. This paper presents an automated technique to define the ROI for infrared breast exams, based on the use of Fully Convolutional Networks (FCN). Adequate comparison among new approaches by using available databases is very important, here some comparisons with other techniques are made. Moreover, concerning on line diagnosis, the comparison among possible techniques must be efficient enough to be done in real time. With our approach the time to segment the ROI was 100 milliseconds and the average accuracy obtained was 95%.
Desenvolvimento de métodos para detecção automática do glaucoma
Authors: de Carvalho Júnior Antônio Sousa Vieira , de Carvalho Filho Antônio Oseas , de Sousa Alcilene , Drumond Patricia Medyna Lauritzen de Lucena , Barros Patricia da Silva
Published: February 2020

O glaucoma é uma doença ocular desenvolvida pelo aumento da pressão intraocular que ocasiona a perda progressiva do campo visual. Devidoá patologia ser assintomática, é de grande importância que a doença seja identificada nos estágios iniciais facilitando assim o tratamento. O Processamento Digital de Imagens em conjunto com técnicas computacionais vem desenvolvendo métodos para detecção automática do glaucoma. Desta forma, foi realizada uma comparação entre quatro métodos desenvolvidos utilizando os algoritmos de Otsu e k-means. Na primeira etapa foi feita a segmentação do disco óptico, na segunda etapa foi utilizada a extração de características baseada nos índices de diversidade filogenética e por fim a classificação utilizando o WEKA, obtendo o melhor resultado aplicando o Otsu com sensibilidade de 97,5%, especificidade de 100,0% e uma acurácia de 97,9%.
Estimating capacity and resource allocation in healthcare settings using business process modelling and simulation
Authors: Redeker G. A. , Webber T. , Czekster R. M. , Quickert S. , Bowles J. K. F.
Published: February 2020

Healthcare involves complex decision making from planning to resource management. Resources in hospitals are usually allocated by experienced managers, however, due to an inherent process complexity, decisions are surrounded by uncertainties, variabilities, and constraints. Information Systems must be robust enough to provide support to stakeholders, capable of controlling and support work flows. The present work explores the required synergy when combining business processes with discrete event simulation. The objective is to estimate performance indices and address capacity management of a surgical center as a case study.
Desenvolvimento e validação de um protótipo para a coleta de sinais vitais
Authors: Aranda Jorge Arthur Schneider , Bez Marta Rosecler , de Carvalho Juliano Varella
Published: February 2020

Este artigo apresenta o desenvolvimento de um protótipo para o monitoramento de sinais vitais através das placas de prototipagem Arduino e e-Health. A metodologia utilizada foi exploratória e o protótipo foi validado com atletas de um time amador de vôlei feminino e seu treinador. Após o uso foi aplicado um questionário de satisfação às atletas e ao treinador. Em ambos os casos, os participantes demonstraram receptividade para o uso deste tipo de tecnologia.
Ferramenta para Extração de Múltiplas Características em Exames Médicos por Imagem
Authors: Reis Adriana N. , Rönnau Rodrigo F. , Pohren Nicolas , Becker Jonata , Spaniol Anderson R. , Bez Marta R. , Goulart Rodrigo R. V.
Published: February 2020

O diagnóstico por imagem tem contribuído significativamente para o atendimento ao paciente, destacando-se o emprego das imagens de tomografia computadorizada, que permitem a visualização interna do corpo com elevado detalhamento anatômico. Para auxiliar o médico na análise dessas imagens são encontradas diferentes soluções computacionais. Porém, é comum que cada ferramenta realize a extração de uma característica específica. Assim, o projeto apresentado neste artigo propõe a construção de uma ferramenta para extração de diferentes características de modo integrado, oportunizando ao médico a execução de algoritmos com diferentes propósitos a partir de um mesmo exame. Para tanto, Linhas de Produto de Software é adotada.
Análise automatizada de exames de urina utilizando imagens digitais de dipsticks
Authors: Ferreira Rafaela Barbirato , de Oliveira Lucas Ferrari
Published: February 2020

Este artigo propõe um estudo sobre a análise de fitas reagentes (dipsticks) para exames de urina. Uma base de imagens de dispsticks foi criada, possibilitando o desenvolvimento e avaliação das técnicas de extração propostas. A extração de características das imagens foi feita utilizando-se os modelos de cores HSV e RGB. Para os testes o classificador escolhido foi o MLP (Multi-layer Perceptron). A quantidade de camadas da rede, número de neurônios, taxa de aprendizado, momentos e épocas foram variados, visando melhores resultados de classificação. O MLP obteve uma média de 91,21% de taxa da acerto, mostrando-se eficiente na classificação dos dados. Os experimentos desenvolvidos confirmaram que a técnica é viável.
Recuperação de Nódulos Pulmonares por Conteúdo: uma abordagem Radiomics em Pesquisa Reprodutível
Authors: Oliveira Marcelo Costa , de Lucena David Jones Ferreira , Felix Ailton
Published: February 2020

O diagnóstico e o tratamento precoce do câncer de pulmão são formas efetivas de garantir a vida dos pacientes. Contudo, a detecção e classificação dos nódulos pulmonares são tarefas desafiadoras aos especialistas, pois os nódulos são pequenos e apresentam baixo contraste. O objetivo deste trabalho foi avaliar a precisão dos atributos de Forma 3D e Intensidade 3D associados a atributos de Textura 3D e Nitidez de Borda disponíveis no contexto de pesquisa reprodutível. Os atributos formaram um vertor Radiomics de 66 dimensões e foram aplicados à recuperação de imagens por conteúdo. O resultado da precisão do algoritmo foi de 0,841 e 0,803 na recuperação de nódulos benignos e malignos, respectivamente.
Estudo comparativo do desempenho da transferência de dados nas arquiteturas RINA e TCP/IP
Authors: Lima Filho Djalma A. , Monteiro José A. Suruagy
Published: February 2020

A arquitetura atual da Internet apresenta limitações que interferem no seu desenvolvimento. Devido ao crescimento acentuado de novas demandas de aplicações, o modelo TCP/IP (Transmission Control Protocol / Internet Protocol) apresenta limitações tornando-o complexo. A Arquitetura Recursiva Interredes (RINA) é uma proposta de arquitetura para a Internet do futuro baseada na comunicação entre processos que propõe soluções para resolver as principais limitações na estrutura da Internet convencional. Este artigo apresenta um estudo comparativo do desempenho da transferência de dados nas arquiteturas RINA e TCP/IP. Os resultados obtidos levam à conclusão de que a arquitetura RINA apresenta um desempenho melhor em relação à arquitetura TCP/IP quando os atrasos de propagação são insuficientes para interferir na transmissão dos dados. Além do mais, através da análise exploratória dos dados, quando observados grandes atrasos, RINA, através dos mecanismos de controle, resolve com mais eficácia o problema do congestionamento devido à sua natureza recursiva em relação ao modelo TCP/IP.
Proteção por Pré-provisionamento em Redes Ópticas Elásticas
Authors: S. Júnior Paulo J. , Drummond André C.
Published: February 2020

Com o surgimento das redes EON, as técnicas de proteção exploradas para as redes WDM são reavaliadas e a investigação por novas técnicas toma nova importância. Este trabalho objetiva explorar as principais técnicas de proteção e comparar a forma offline, pré-provisionamento, e online, provisionamento, adaptando as estratégias tomadas pela literatura para as redes EON. Este estudo explora a visão realista de se prever o tráfego e adaptar as técnicas de roteamento a essa premissa. São apresentadas heurísticas para roteamento e alocação de espectro para pré-provisionamento de proteção DLP, Proteção Dedicada por Enlace, e DPP, Proteção Dedicada por Caminho. Resultados mostram que o uso de técnicas de pré-provisionamento em EON obtém bons resultados, comparados às soluções clássicas de provisionamento.
Analysis of GPU Power Consumption Using Internal Sensors
Authors: Ferro Mariza , Yokoyama André , Klôh Vinicius , Silva Gabrieli , Gandra Rodrigo , Bragança Ricardo , Bulcão Andre , Schulze Bruno
Published: February 2020

GPUs has been widely used in scientific computing, as by offering exceptional performance as by power-efficient hardware. Its position established in high-performance and scientific computing communities has increased the urgency of understanding the power cost of GPU usage in accurate measurements. For this, the use of internal sensors are extremely important. In this work, we employ the GPU sensors to obtain high-resolution power profiles of real and benchmark applications. We wrote our own tools to query the sensors of two NVIDIA GPUs from different generations and compare the accuracy of them. Also, we compare the power profile of GPU with CPU using IPMItool.
Taking Open vSwitch to the Gym: An Automated Benchmarking Approach
Authors: Rosa Raphael Vicente , Rothenberg Christian Esteve
Published: February 2020

Performance benchmarking in Network Function Virtualization (NFV) pose challenging issues due to all moving parts of virtualized infrastructures potentially affecting the packet processing performance of Virtualized Network Functions (VNFs). Despite the advances in best-of-breed network virtualization technologies, the dependencies on the underlying allocated hardware resources, their characteristics and customized configurations, result in benchmarking hazards that call for innovative and standardized testing methodologies towards adequate VNF performance profiling. To this end, we designed and prototyped Gym, a testing framework for automated NFV performance benchmarking we experimentally validated on Open vSwitch as a target VNF. The design principles and implementation of Gym demonstrate an useful apparatus to assist standards organizations formalizing VNF testing methodologies.
Homologue replacement in the import motor of the mitochondrial inner membrane of trypanosomes
Authors: von Känel Corinne , Muñoz-Gómez Sergio A , Oeljeklaus Silke , Wenger Christoph , Warscheid Bettina , Wideman Jeremy G , Harsman Anke , Schneider Andre
Published: February 2020

Many mitochondrial proteins contain N-terminal presequences that direct them to the organelle. The main driving force for their translocation across the inner membrane is provided by the presequence translocase-associated motor (PAM) which contains the J-protein Pam18. Here, we show that in the PAM of Trypanosoma brucei the function of Pam18 has been replaced by the non-orthologous euglenozoan-specific J-protein TbPam27. TbPam27 is specifically required for the import of mitochondrial presequence-containing but not for carrier proteins. Similar to yeast Pam18, TbPam27 requires an intact J-domain to function. Surprisingly, T. brucei still contains a bona fide Pam18 orthologue that, while essential for normal growth, is not involved in protein import. Thus, during evolution of kinetoplastids, Pam18 has been replaced by TbPam27. We propose that this replacement is linked to the transition from two ancestral and functionally distinct TIM complexes, found in most eukaryotes, to the single bifunctional TIM complex present in trypanosomes.
Characterization of Malaria Preventive Extracts from Myrsine africana Seeds
Authors: Shopoko Renei , Aloys Osano , Chaka Bakari
Published: February 2020

Introduction: The use of pharmaceutical anti-malaria drugs in many rural areas is not common. Various plant extracts have been used as anti-plasmodial agents. Myrsine africana seed extracts are common anti-malaria agents amongst the Maasai community of Kenya.

Aims: This study aimed at characterizing the chemical constituents of methanolic, aqua and n-hexane extracts of Myrsine africana seeds.

Study Design: An independent measures design was used.

Methodology: The extracts were obtained by maceration of the seeds before subjecting to physical-chemical analysis, functional groups, bio-metal concentrations and phytochemicals screening. Antibacterial studies were conducted using E. coli and S. aureus. The extracts were thereafter screened for presence of quinine and chloroquine by UV VIS spectroscopy.

Results: The results indicated the extracts were weakly acidic with moderate solid content. The FT-IR peaks of the extracts indicated abundance of carboxylic acids and benzylic groups. The extracts had a moderate iron concentration with mild copper, cobalt and zinc concentrations. The extracts were also rich in tannins, phenols, saponins, alkaloids and steroids. The antibacterial proficiency of both stains used increased with concentration of extracts and were highest at 50.0 mg/mL. Methanolic and water extracts of the seeds also showed appreciable quinines and chloroquinines concentrations.

Conclusions: M. africana seed methanolic and water extracts can be used as anti-plasmodial drugs to help curb malaria in rural tropical regions.
PENGARUH PROGRAM DIRECT MARKETING TERHADAP CUSTOMER RELATIONSHIP MANAGEMENT PADA FUNCTION ROOM DI HARRIS HOTEL SENTUL CITY BOGOR
Authors: Puspita Nungky
Published: February 2020

Direct marketing merupakan cara yang efetif untuk menjangkau pelanggan dengan tepat sasaran dan dapat diukur serta dapat membantu mempertahankan pelanggan. Program direct marketing dilakukan oleh sales and marketing department HARRIS Hotel Sentul City Bogor yang memiliki peran yang sangat penting dalam mempromosikan produk yang dimilikinya seperti meningkatkan penjualan function room dengan mempromosikan kepada sasaran pasar. Direct marketing selain dapat menjual function room juga dapat menjalin dan membina hubungan dengan tamu atau biasa disebut customer relationship management. Customer Relationship Management merupakan konsep yang berfokus pada pemeliharaan hubungan dengan pelanggan untuk membangun hubungan jangka panjang dan menguntungkan dengan pelanggan. Tujuan dari penelitian ini untuk mengidentifikasi pengaruh program direct marketing terhadap customer relationship management dalam meningkatkan penjualan function room di HARRIS Hotel Sentul City Bogor. Metode pengumpulan data yang digunakan yaitu observasi, wawancara, kuesioner dan studi kepustakaan. Kuesioner disebarkan secara langsung dengan 100 responden yang memenuhi syarat penelitian. Data yang diperoleh dianalisis dan disajikan secara kuantitatif deskriptif. Teknik analisis data yang digunakan uji validitas, uji reliabilitas serta teknik regresi linear berganda mealui uji koefisien determinan (R2), Uji secara F, Uji T regresi berganda. Hasil temuan penelitian ini menunjukkan bahwa variabel telemarketing, direct mail, kiosk marketing dan the on-line customer berpengaruh signifikan terhadap customer relationship management sedangkan variabel direct selling, dan catalog marketing tidak berpengaruh signifikan terhadap customer relationship management
A Multifunctional Bipolar Luminogen with Delayed Fluorescence for High‐Performance Monochromatic and Color‐Stable Warm‐White OLEDs
Authors: Zeng Jiajie , Guo Jingjing , Liu Hao , Zhao Zujin , Tang Ben Zhong
Published: February 2020

Increasing exciton utilization and reducing exciton annihilation are crucial to achieve high performance of organic light‐emitting diodes (OLEDs), which greatly depend on molecular engineering of emitters and hosts. A novel luminogen (SBF‐BP‐DMAC) is synthesized and characterized. Its crystal and electronic structures, thermal stability, electrochemical behavior, carrier transport, photoluminescence, and electroluminescence are investigated. SBF‐BP‐DMAC exhibits enhanced photoluminescence and promotes delayed fluorescence in solid state and bipolar carrier transport ability, and thus holds multifunctionality of emitter and host for OLEDs. Using SBF‐BP‐DMAC as an emitter, the nondoped OLEDs exhibit maximum electroluminescence (EL) efficiencies of 67.2 cd A−1, 65.9 lm W−1, and 20.1%, and the doped OLEDs provide maximum EL efficiencies of 79.1 cd A−1, 70.7 lm W−1, and 24.5%. A representative orange phosphor, Ir(tptpy)2acac, is doped into SBF‐BP‐DMAC for OLED fabrication, giving rise to superior EL efficiencies of 88.0 cd A−1, 108.0 lm W−1, and 26.8% for orange phosphorescent OLEDs, and forward‐viewing EL efficiencies of 69.3 cd A−1, 45.8 lm W−1, and 21.0% for two‐color hybrid warm‐white OLEDs. All of these OLEDs can retain high EL efficiencies at high luminance, with very small efficiency roll‐offs. The outstanding EL performance demonstrates the great potentials of SBF‐BP‐DMAC in practical display and lighting devices.
The Interplay between Surface Plasmon Resonance and Switching Properties in Gold@Spin Crossover Nanocomposites
Authors: Palluel Marlène , Tran Ngoc Minh , Daro Nathalie , Buffière Sonia , Mornet Stéphane , Freysz Eric , Chastanet Guillaume
Published: February 2020

Rod‐like gold nanoparticles are directly embedded in a 1D‐polymeric spin crossover (SCO) material leading to singular Au@SCO nanohybrid architectures. The resulting architectures are designed to promote a synergetic effect between ultrafast spin‐state photoswitching and photothermal properties of plasmonic nanoparticles. This synergy is evidenced by the strong modulation of the surface plasmon resonance of the gold nanorods through the spin‐state switching of the SCO component and also the strong enhancement of the photoswitching efficiency compared to pure SCO particles. This remarkable synergy results from the large modulation of the dielectric properties of the SCO polymer upon its thermal switching and the enhancement of the heating of these hybrid nanostructures upon excitation of the surface plasmon resonance of the gold nanorods.
Front and Back‐Junction Carbon Nanotube‐Silicon Solar Cells with an Industrial Architecture
Authors: Chen Jianhui , Tune Daniel D. , Ge Kunpeng , Li Han , Flavel Benjamin S.
Published: February 2020

In the past, the application of carbon nanotube‐silicon solar cell technology to industry has been limited by the use of a metallic frame to define an active area in the middle of a silicon wafer. Here, industry standard device geometries are fabricated with a front and back‐junction design which allow for the entire wafer to be used as the active area. These are enabled by the use of an intermixed Nafion layer which simultaneously acts as a passivation, antireflective, and physical blocking layer as well as a nanotube dopant. This leads to the formation of a hybrid nanotube/Nafion passivated charge selective contact, and solar cells with active areas of 1–16 cm2 are fabricated. Record maximum power conversion efficiencies of 15.2% and 18.9% are reported for front and back‐junction devices for 1 and 3 cm2 active areas, respectively. By placing the nanotube film on the rear of the device in a back‐junction architecture, many of the design‐related challenges for carbon nanotube silicon solar cells are addressed and their future applications to industrialized processes are discussed.
Is It Possible to Obtain Solvent‐Free, Li+‐Conducting Solid Electrolytes Based on Pure PVdF? Comment on “Self‐Suppression of Lithium Dendrite in All‐Solid‐State Lithium Metal Batteries with Poly(vinylidene difluoride)‐Based Solid Electrolytes”
Authors: Callegari Daniele , Bonizzoni Simone , Berbenni Vittorio , Quartarone Eliana , Mustarelli Piercarlo
Published: February 2020

Is It Possible to Obtain Solvent‐Free, Li+‐Conducting Solid Electrolytes Based on Pure PVdF? Comment on “Self‐Suppression of Lithium Dendrite in All‐Solid‐State Lithium Metal Batteries with Poly(vinylidene difluoride)‐Based Solid Electrolytes”
Low‐Profile Electromagnetic Holography by Using Coding Fabry–Perot Type Metasurface with In‐Plane Feeding
Authors: Li He , Li Yun Bo , Shen Jia Lin , Cui Tie Jun
Published: February 2020

Metasurface holography has been well studied due to its features that are superior to the traditional holographic technologies. However, high profiles of the reflection‐ and transmission‐type configurations in the metasurface holography restrict its applications. On the other hand, digital coding metasurfaces have received great attention recently because they build a link between the information theory and surface electromagnetic fields, which also bring new viewpoint and convenience for digital computational holography. Here, a real low‐profile holographic method is proposed using a leaky‐type 2‐bit coding Fabry–Perot metasurface with in‐plane feeding in the microwave frequency. For constructing the metasurface hologram, the weighted Gerchberg–Saxton algorithm is presented to modulate the energy proportion of focal points by adjusting the phase distribution. As proof of concept, some typical metasurface holograms are demonstrated in microwave experiments at the height of 35 mm (≈3 wavelengths), which show good agreement with theoretical analyses and full‐wave simulations. The design method can be easily extended to the millimeter wave and terahertz bands.
Clinical impact of D3 lymph node dissection with left colic artery (LCA) preservation compared to D3 without LCA preservation: Exploratory subgroup analysis of data from JCOG0404
Authors: Akagi Tomonori , Inomata Masafumi , Hara Takao , Mizusawa Junki , Katayama Hiroshi , Shida Dai , Ohue Masayuki , Ito Masaaki , Kinugasa Yusuke , Saida Yoshihisa , Masaki Tadahiko , Yamamoto Seiichiro , Hanai Tsunekazu , Yamaguchi Shigeki , Watanabe Masahiko , Sugihara Kenichi , Fukuda Haruhiko , Kanemitsu Yukihide , Kitano Seigo
Published: February 2020

Aim

We investigated the clinical impact of D3 lymph node dissection preserving left colic artery (LCA) compared to D3 without LCA preservation using data from JCOG0404. LCA preservation is expected to maintain adequate blood supply, which is effective in preventing anastomotic leakage, intestinal paralysis, and bowel obstruction. Whether D3 with LCA preservation (Group A) improves clinical outcomes following resection of sigmoid colon cancer compared to D3 without LCA preservation (Group B) is unclear.

Methods

Procedure type was identified from photographs of the surgical field collected for central surgical review in JCOG0404. Clinical outcomes were compared between each procedure.

Results

Among the 1057 randomized patients in JCOG0404, 631 patients receiving sigmoid colectomy or anterior resection were included in the subgroup analysis. Group A comprised of 135 patients and Group B of 496 patients. Patient backgrounds did not differ between groups. Median operative time, blood loss, anastomotic leakage, and intestinal paralysis were not remarkably different (Group A vs Group B: 185 vs 186 minutes, 60 vs 50 mL, 3.0% vs 5.0%, and 2.2% vs 3.8%). More overall postoperative complications occurred in Group B than Group A (21.6% vs 9.6%, P = .022). Five‐year relapse‐free survival (RFS) and overall survival (OS) tended to be better in Group A than Group B (RFS: 83.7% and 80.5%, HR 0.80 [95% CI 0.51‐1.26], OS: 96.3% and 91.1%, HR 0.41 [95% CI 0.19‐0.89]).

Conclusions

Short‐ and long‐term outcomes tend to be better in Group A than Group B, indicating that preservation of LCA could be an alternative treatment.
Parties Usually Benefit Most From Reasoned Awards, Not Standard Awards
Authors: McArthur John Burritt
Published: February 2020

The first article in this series, “Parties, Beware: Current Practices and Judicial Standards Threaten Your Right to Truly Reasoned Awards,” 38 Alternatives 19 (February 2020) (available at http://bit.ly/39Au7Gi), warned parties that they may be surprised to receive an unreasoned arbitration award even when they specifically ask for a reasoned one.
Spatially Resolved Bottom‐Side Fluorination of Graphene by Two‐Dimensional Substrate Patterning
Authors: Bao Lipiao , Zhao Baolin , Lloret Vicent , Halik Marcus , Hauke Frank , Hirsch Andreas
Published: February 2020

Patterned functionalization can, on the one hand, open the band gap of graphene and, on the other hand, program demanding designs on graphene. The functionalization technique is essential for graphene‐based nanoarchitectures. A new and highly efficient method was applied to obtain patterned functionalization on graphene by mild fluorination with spatially arranged AgF arrays on the structured substrate. Scanning Raman spectroscopy (SRS) and scanning electron microscopy coupled with energy‐dispersive X‐ray spectroscopy (SEM‐EDS) were used to characterize the functionalized materials. For the first time, chemical patterning on the bottom side of graphene was realized. The chemical nature of the patterned functionalization was determined to be the ditopic scenario with fluorine atoms occupying the bottom side and moieties, such as oxygen‐containing groups or hydrogen atoms, binding on the top side, which provides information about the mechanism of the fluorination process. Our strategy can be conceptually extended to pattern other functionalities by using other reactants. Bottom‐side patterned functionalization enables utilization of the top side of a material, thereby opening up the possibilities for applications in graphene‐based devices.
Ceria‐modified Al‐Mn‐pillared clay catalysts for the selective catalytic reduction of NO with NH3 at low temperatures
Authors: Cheng Jin , Ye Qing , Li Chenxi , Cheng Shuiyuan , Kang Tianfang , Dai Hongxing
Published: February 2020

The yCe/Al‐Mn‐pillared interlayered clay (PILC, y [Ce content] = 8–9 wt%) catalysts were prepared using the impregnation method. Catalytic activities of the materials for the selective catalytic reduction (SCR) of NO with NH3 at low temperatures were evaluated, and physicochemical properties of the samples were characterized by X‐ray diffraction, N2 adsorption–desorption, temperature‐programmed reduction, ammonia temperature‐programmed desorption, X‐ray photoelectron spectroscopy, and in situ diffuse reflectance infrared Fourier transform spectroscopy techniques. It is found that introduction of cerium enhanced NO conversions at low temperatures, and the 8Ce/Al‐Mn‐pillared sample showed the highest NO conversion (92% at 300°C). The superior catalytic activity of 8Ce/Al‐Mn‐PILC was associated with the change in active component and increases in amounts of the surface chemisorbed oxygen species and the acid sites after ceria loading. Additionally, the SCR reaction mechanism over 8Ce/Al‐Mn‐PILC followed both Langmuir–Hinshelwood and Eley–Rideal mechanisms, with the former being dominant.