bluuebunny/crossref_metadata_2025 huggingface dataset:
Policy expectation moderates the relationship between merit pay policy effectiveness and public service motivation
Authors: Meng Fanrong , Wu Jiannan
Published: September 2017

We explored how policy expectation influences the relationship between public service motivation (PSM) and perceived merit pay policy effectiveness among public sector employees. Using survey data from 581 Chinese compulsory school teachers, we tested the influence of merit pay policy
on PSM using multiple regression analysis. The results demonstrated that the relationship between the perceived effectiveness of merit pay policy and PSM is U-shaped. That is, teachers' PSM declined in the case of a weak perception of policy effectiveness but improved when teachers perceived
that policy effectiveness was high. In addition, policy expectations moderated this link, suggesting that taking this variable into account can help to improve teachers' acceptance of the reward policy. The theoretical and managerial implications relating to strategies for implementing performance
pay systems, study limitations, and possible future research directions are discussed.
Attentional characteristics of Chinese college students receiving social threat cues in rejection situations
Authors: Liu Shen , Zhang Lin , Tan Qun , Zhao Yanlin , Xu Qiang
Published: September 2017

We investigated the attentional characteristics of 98 Chinese college students when they received social threat cues in explicit and ambiguous rejection situations, and further examined the moderating effect of degree of rejection sensitivity. Participants were instructed to play an
interactive game in pairs, after which they completed the Rejection Sensitivity Questionnaire for College Students and, finally, a dot-probe task. The results showed that all participants had an attentional bias toward social rejection cues in both social rejection and general situations.
In the ambiguous rejection situation, highly rejection-sensitive individuals showed attentional bias and tended to avoid social threat cues and nonsocial negative cues. Degree of rejection sensitivity moderated the relationship of ambiguous rejection, influencing individuals' attentional processing
of threat cues. We sought to develop some specific interventions that could be used to alert highly rejection-sensitive college students to the characteristics of the attentional processing strategies they use for social avoidance.
INCIDÊNCIA E DISTRIBUIÇÃO DA SÍFILIS CONGÊNITA NA BAHIA, 2005-2012
Authors: Meira Brasileiro Cristiana De Souza , Ribeiro Guilherme De Sousa
Published: September 2017

Embora a sífilis congênita (SC) possa ser prevenida por ações realizadas no pré--natal, ela ainda apresenta elevada incidência em diversas partes do mundo. Este estudo teve o objetivo de analisar aspectos epidemiológicos da SC na Bahia e em seus municípios, no período de 2005 a 2012. Foi realizado um estudo ecológico, de distribuição temporal e espacial, com caráter descritivo. Com base nos registros do Sistema de Informação de Agravos de Notificação e do Sistema de Informação sobre Mortalidade, foram identificados 2.656 casos de SC na Bahia no período. A incidência da SC no estado cresceu de 1,2 para 2,7 casos por 1.000 nascidos vivos (NV) entre 2005 e 2012. Comparando-se os quadriênios 2005-2008 e 2009-2012, observou-se redução no percentual dos municípios que apresentavam incidência da SC inferior à meta definida pela Organização Pan-americana da Saúde (até 0,5 caso por 1.000 NV) de 74,6% para 63,1%. Nesse último quadriênio, altas incidências médias anuais foram detectadas nas Regiões Leste, Sudoeste, Sul e Extremo Sul do estado. Concluiu-se que a crescente dispersão da SC na Bahia reforça a necessidade de ampliar os investimentos na vigilância e no controle da doença.

Palavras-chave: Sífilis congênita. Epidemiologia. Incidência.
IMPLEMENTAÇÃO DA POLÍTICA NACIONAL DE PROMOÇÃO DA SAÚDE NO ESTADO DA BAHIA: ÊNFASE NA ATIVIDADE FÍSICA
Authors: Lopes Ignês Beatriz Oliveira , Dos Santos Luiz Carlos , Campos Maria de Fátima Hanaque , Pontes da Silva Gerluce Alves
Published: September 2017

Em 2005 iniciou-se processo de incentivo financeiro para a implementação de ações de promoção da saúde, especialmente a promoção da atividade física. O objetivo deste estudo é analisar a implementação da Política Nacional de Promoção da Saúde nos municípios do estado da Bahia. Trata-se de uma pesquisa exploratória, de ordem teórico-empírica. Realizaram-se pesquisas bibliográfica, eletrônica, documental e de campo. Dentre os resultados, destaca-se que as atividades mais frequentes são as caminhadas e ações de educação em saúde; as campanhas de divulgação são pouco utilizadas; o público-alvo geralmente é formado pelos grupos de risco. As dificuldades para implantação e manutenção das ações incluem a falta de espaço físico adequado, carência e pouca qualificação dos profissionais, baixa qualidade do gerenciamento dos recursos financeiros, falta de apoio do gestor e fragilidade na adesão do público. Concluiu-se que, para o sucesso da política, são necessários articulação intersetorial, qualificação profissional, divulgação e monitoramento das ações.

Palavras-chave: Promoção da saúde. Avaliação em saúde. Monitoramento. Atividade física.
VIGILÂNCIA DAS COBERTURAS VACINAIS EM CRIANÇAS MENORES DE UM ANO EM MUNICÍPIO BAIANO: RELATO DE EXPERIÊNCIA
Authors: Rodrigues Maria Aparecida Figueredo
Published: September 2017

Sabe-se da importância da vacinação infantil e da necessidade de manutenção das coberturas vacinais adequadas para redução, eliminação e erradicação de doenças imunopreveníveis. Este estudo é um relato de experiência do monitoramento das coberturas vacinais nos municípios de abrangência da Região de Saúde de Cruz das Almas. Buscou-se a identificação dos motivos para as baixas coberturas vacinais (CV) em menores de um ano em Governador Mangabeira (BA), no período de janeiro a maio de 2013. Foram utilizados os dados do Sistema de Informação de Avaliação do Programa de Imunizações (SI-API), da revisão dos instrumentos de registro diário e mensal por Unidade de Saúde da Família (USF), visita às unidades de saúde e entrevista com os técnicos e enfermeiros que atuavam nas salas de vacinação. Foi possível identificar vários problemas que contribuíram para as baixas coberturas vacinais. Na intervenção, atualizou-se o Sistema de Informação com base no resgate das doses dos boletins diários e consolidados mensais das USF, com incremento no número de doses de vacinas e consequentemente das coberturas vacinais. A vigilância das coberturas vacinais possibilitou direcionar a intervenção para onde se localizava o problema e identificou possíveis fatores que contribuíram para o não alcance das CV preconizadas.

Palavras-chave: Vigilância. Coberturas Vacinais. Imunização.
VIGILÂNCIA E ATENÇÃO À SAÚDE DE POPULAÇÕES EXPOSTAS A AGROTÓXICOS: METODOLOGIAS E PRÁTICAS INTEGRADAS
Authors: Martins Ericka Helena Costa , Martins Anameire de Jesus , Ferraro Andréa , Coelho Armando José Farias , Barreto Christianne , Moraes de Carvalho Cristiane Medeiros , Cancio Jacira Azevedo , Pena Jacqueline , Rodrigues Lazaro , Da Costa Nobre Letícia Coelho , Da Mota Maria Conceição Teles , Santana Osvaldo Aurélio , Souto Rosaria , De Abreu Ruy Muricy , Brasil Sandra Lúcia , De Oliveira Aline Souza , Da Conceição Filho Jucelino Nery , Leite Clarissa Campos , Jorge da Silva Iêda Queiroz , Rodrigues Joseth Cleria
Published: September 2017

O alto consumo de agrotóxicos na Bahia e o impacto do uso de agrotóxicos na saúde e no ambiente exigem a aplicação de metodologias integradoras de vigilância e atenção à saúde das populações expostas. O texto relata uma experiência de educação em saúde voltada para a construção de metodologias e práticas integradas de vigilância e atenção à saúde de populações expostas a agrotóxicos, por meio da capacitação de técnicos das secretarias estadual e municipais de saúde, dos âmbitos central, regional e municipal. Nessa experiência, adotou-se a metodologia dialógica, valorizando as experiências individuais. Utilizaram-se instrumentos e mecanismos que permitiram a construção coletiva com base em uma determinada temática, potencializando a reflexão crítica da realidade. A abordagem teve como princípio a articulação intra e interinstitucional, a gestão da informação para a ação e a qualificação das equipes de saúde para atuarem em situações de rotina e em eventos inusitados. O Grupo de Trabalho de Agrotóxicos da Secretaria da Saúde do Estado da Bahia elaborou o plano de ação estadual, identificando estratégias para sua operacionalização, dentre elas o curso para técnicos de municípios definidos como prioritários, das áreas de Vigilância em Saúde e Centro de Referência Regional em Saúde do Trabalhador, bem como das respectivas Diretorias Regionais de Saúde. A experiência vivenciada pelos participantes durante o processo de concepção e realização do curso foi transformadora enquanto metodologia participativa e aprendizado coletivo, possibilitando a reflexão sobre a prática e o agir dos sujeitos.

Palavras-chave: Vigilância em saúde pública. Agroquímicos. Metodologias de aprendizagem (ou educacionais). Exposição a produtos químicos. Atenção primária à saúde.
Analysis of 6T SRAM Cell in Different Technologies
Authors: Rath Subhashree , Panda Siba Kumar
Published: September 2017

Static random access memory (SRAM) is an important component of embedded cache memory of handheld digital devices. SRAM has become major data storage device due to its large storage density and less time to access. Exponential growth of low power digital devices has raised the demand of low voltage low power SRAM. This paper presents design and implementation of 6T SRAM cell in 180 nm, 90 nm and 45 nm standard CMOS process technology. The simulation has been done in Cadence Virtuoso environment. The performance analysis of SRAM cell has been evaluated in terms of delay, power and static noise margin (SNM).
Comparative Study on Spreading Codes
Authors: Agasti Omprava , Raut Sujatarani , Pradhan Shibashis
Published: September 2017

In this paper, we studied on spreading code for wireless communication, their performance analysis, applications and its implementation. Spread-spectrum systems have found important commercial applications in CDMA cellular networks and wireless personal communication networks. Implementation is complex, mainly because spreading the baseband (by a factor that can be several orders of magnitude) forces the electronics to act and react accordingly, which, in turn, makes the spreading and dispreading operation necessary. In spread spectrum the transmission signal bandwidth is much higher than the information bandwidth. The signal occupies a bandwidth much larger than what is necessary to send the information in spread spectrum technology. CDMA uses unique spreading codes to spread the baseband data before transmission data. The performance of a CDMA system gets controlled by two types of interference, namely ISI and MAI which are the function of auto and cross correlation values of the spreading codes respectively. The existing codes using Additive White Gaussian Noise channel under multi-user has been compared with the Bit Error Rate(BER) performance.
The effect of bracket slot size on the effectiveness of orthodontic treatment: A systematic review
Authors: Vieira Elma P. , Watanabe Bruna S. D. , Pontes Luana F. , Mattos José N. F. , Maia Lucianne C. , Normando David
Published: September 2017

Objectives:

To assess, by means of a systematic review, the scientific evidence of the influence of 0.018-inch or 0.022-inch bracket slots on treatment time, efficiency of space closure, efficiency of alignment, quality of orthodontic finishing, level of discomfort, and level of root resorption.

Materials and Methods:

The PubMed, Bireme, Medline, Scopus, Web of Science, Open Grey, and Google Scholar databases were searched, with no date and language restrictions, for randomized clinical trials and controlled clinical trials, using controlled terms related to bracket slots. After the selection and removal of duplicate articles, the risk of bias was assessed, and the data from the included studies were extracted by two independent researchers.

Results:

The search yielded 2640 studies. After applying the eligibility criteria, eight articles were fully read and four studies were selected for the qualitative systematic review. No randomized clinical trials assessed the duration of treatment in patients treated with 0.018-inch and 0.022-inch bracket slots. Due to heterogeneity of the data available, a meta-analysis could not be conducted.

Conclusions:

While most studies indicated a shorter duration of treatment in patients with 0.018-inch bracket slots, no available data confirmed the higher efficiency of one system over the other. The biases in the studies did not allow for a reliable conclusion; therefore, new studies with a better methodologic design are needed.
Intensive Versus Standard Blood Pressure Control in SPRINT-Eligible Participants of ACCORD-BP
Authors: Buckley Leo F. , Dixon Dave L. , Wohlford George F. , Wijesinghe Dayanjan S. , Baker William L. , Van Tassell Benjamin W.
Published: September 2017

OBJECTIVE

We sought to determine the effect of intensive blood pressure (BP) control on cardiovascular outcomes in participants with type 2 diabetes mellitus (T2DM) and additional risk factors for cardiovascular disease (CVD).

RESEARCH DESIGN AND METHODS

This study was a post hoc, multivariate, subgroup analysis of ACCORD-BP (Action to Control Cardiovascular Risk in Diabetes Blood Pressure) participants. Participants were eligible for the analysis if they were in the standard glucose control arm of ACCORD-BP and also had the additional CVD risk factors required for SPRINT (Systolic Blood Pressure Intervention Trial) eligibility. We used a Cox proportional hazards regression model to compare the effect of intensive versus standard BP control on CVD outcomes. The “SPRINT-eligible” ACCORD-BP participants were pooled with SPRINT participants to determine whether the effects of intensive BP control interacted with T2DM.

RESULTS

The mean baseline Framingham 10-year CVD risk scores were 14.5% and 14.8%, respectively, in the intensive and standard BP control groups. The mean achieved systolic BP values were 120 and 134 mmHg in the intensive and standard BP control groups (P < 0.001). Intensive BP control reduced the composite of CVD death, nonfatal myocardial infarction (MI), nonfatal stroke, any revascularization, and heart failure (hazard ratio 0.79; 95% CI 0.65–0.96; P = 0.02). Intensive BP control also reduced CVD death, nonfatal MI, and nonfatal stroke (hazard ratio 0.69; 95% CI 0.51–0.93; P = 0.01). Treatment-related adverse events occurred more frequently in participants receiving intensive BP control (4.1% vs. 2.1%; P = 0.003). The effect of intensive BP control on CVD outcomes did not differ between patients with and without T2DM (P > 0.62).

CONCLUSIONS

Intensive BP control reduced CVD outcomes in a cohort of participants with T2DM and additional CVD risk factors.
Ultrafast laser eyewear protection: Measurements and precautions
Authors: Stromberg Christopher J. , Hadler Joshua A. , Alberding Brian G. , Heilweil Edwin J.
Published: September 2017

Ultrafast laser systems are becoming more widespread throughout the research and industrial communities, yet eye protection for these high power, bright pulsed sources still requires scrupulous characterization and testing before use. Femtosecond lasers, with pulses naturally possessing a broad-bandwidth and high average power with a variable repetition rate, can exhibit spectral side-bands and subtly changing center wavelengths, which may unknowingly affect eyewear safety protection. Pulse spectral characterization and power diagnostics are presented for a 80 MHz, Ti+3:Sapphire, ≈800 nm, and ≈40 fs oscillator system. Power and spectral transmission for 22 test samples are measured to determine whether they fall within manufacturer specifications.
Editorial
Authors: Maria Helena Roxo Beltran Fumikazu Saito &
Published: September 2017

Editorial
W04 - História da química no Brasil em sala de aula
Authors: Dos Santos Nadja Paraense
Published: September 2017

EMENTA - WORKSHOP
W08 - Impressão fotográfica do século XIX – cianotipia – uma ferramenta para o ensino de ciências
Authors: Almeida Bárbara , Leite Érika
Published: September 2017

EMENTA - WORKSHOP
MC01 - Ciência, tecnologia e trabalho na pedagogia libertária: experiências utópicas
Authors: Queluz Gilson Leandro
Published: September 2017

EMENTA - MINICURSO
P11 - A lanterna de Faraday: relações conceituais em um cenário semiótico
Authors: Dos Reis João B. A. , De Assis Maria Loiza Izidóro , De Paiva Milheny Silva
Published: September 2017

RESUMO - PÔSTER
P15 - A criação de um site para discussão da História da Ciência para alunos do ensino médio
Authors: Zambelli Maria Helena , Freitas-Reis Ivoni
Published: September 2017

RESUMO - PÔSTER
P17 - Uma abordagem histórica como motivadora para introdução dos estudos de eletroquímica
Authors: Rodrigues Priscilla , Machado Priscyla Da Cruz
Published: September 2017

RESUMO - PÔSTER
P21 - A história da química como ferramenta para ensino de cinética química
Authors: Ferreira Vitor Dos Santos
Published: September 2017

RESUMO - PÔSTER
Historical Patterns of Inequality and Productivity around Financial Crises
Authors:   Federal Reserve Bank of San Francisco, Paul Pascal
Published: September 2017

To understand the determinants of financial crises, previous research focused on developments closely related to financial markets. In contrast, this paper considers changes originating in the real economy as drivers of financial instability. To this end, I assemble a novel data set of long-run measures of income inequality, productivity, and other macrofinancial indicators for advanced economies. I find that rising top income inequality and low productivity growth are robust predictors of crises, and their slowmoving trend components largely explain these relations. Moreover, recessions that are preceded by such developments are deeper than recessions without such ex-ante trends.
(Revista de revistas) Revue des Langues Romanes, Paris, vol. LXX, 1948.
Authors: Álvarez Guzmán
Published: September 2017

Se reseñó: Revue des Langues Romanes, vol. LXX, 1948.
Romanische Forschungen, Frankfurt am Main, vols. LX, 1947, y LXI, 1948.
Authors: Frenk Margit
Published: September 2017

Se reseñó: Romanische Forschungen, vols. LX, 1947, y LXI, 1948.
Bibliografía de filología hispánica
Authors: Filología Hispánica Nueva Revista de
Published: September 2017

Las reseñas se consignan a continuación del libro (o artículo reseñado). Cuando éste se ha descrito en una entrega anterior de la Bibliografía, se pone entre paréntesis el número de ficha correspondiente. También se hacen referencias a ediciones anteriores de una obra, a tomos anteriores de una obra en curso de publicación, etc. En estos casos, la cifra que precede al número de referencia indica el volumen de la NRFH en que figura la ficha en cuestión. Así, el "núm. 39-39695" corresponde a la ficha 39695, la cual está en el volumen 39 de la NRFH. Cuando no hay cifra inicial, ha de entenderse que el número remite a una ficha incluida en el presente fascículo.
Romanic Review, Columbia University, New York, 1949.
Authors: Boyd-Bowman Peter
Published: September 2017

Se reseñó: Romanic Review, 1949.
M. Teixeira-Leite Penido, O itinerário mystico de São João da Cruz. Editora "Vozes", Ltda., Petrópolis, 1949. 252 págs.
Authors: Figueiredo Fidelino de Sousa
Published: September 2017

Se reseñó el libro: O itinerário mystico de São João da Cruz.
La pronunciación francesa de la ç y de la z españolas
Authors: Alonso Amado
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
Fray Luis de León: "Ve cómo el gran maestro..." (Enmienda)
Authors: Alonso Amado
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
Hispanic Review, The University of Pennsylvania Press, Lancaster, Pa., 1950.
Authors: Boyd-Bowman Peter
Published: September 2017

Se reseñó: Hispanic Review, 1950.
Modern Language Notes, The Johns Hopkins Press, Baltimore, Maryland, vol. LXV, 1950.
Authors: Boyd-Bowman Peter
Published: September 2017

Se reseñó: Modern Language Notes, vol. LXV, 1950.
Miguel Querol Gavaldá, La música en las obras de Cervantes, Ediciones Comtalia, Barcelona, 1948. 173 págs.
Authors: Sálazar Adolfo
Published: September 2017

Se reseñó el libro: La música en las obras de Cervantes
La tradición clásica en España
Authors: Lida de Malkiel María Rosa
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
Speculum, Cambridge, Mass., XXV, 1950.
Authors: Alonso Amado
Published: September 2017

Se reseñó: Speculum, XXV, 1950.
Hispanoamericano (h)ora, (h)oratico
Authors: Leopold Wagner Max
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
Formación del timbre ciceante en la c, z española
Authors: Alonso Amado
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
Ramón Menéndez Pidal, El imperio hispánico y los cinco reinos. Instituto de Estudios Políticos, Madrid, 1950.
Authors: López Marichal Juan
Published: September 2017

Se reseñó el libro: El imperio hispánico y los cinco reinos.
Cómo trabajaron las escuelas alfonsíes
Authors: Menéndez Pidal Gonzalo
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
Sobre las fuentes de "Del rey abajo ninguno"
Authors: Fucilla Joseph G.
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
Stanley Martin Sapon, A study of the development of the interrogative in Spanish from the twelfth through the fifteenth centuries. Columbus, Ohio, 1951. 99 págs.
Authors: Boyd-Bowman Peter
Published: September 2017

Se reseñó el libro: A study of the development of the interrogative in Spanish from the twelfth through the fifteenth centuries.
Carl Darling Buck, A Dictionary of selected synonyms in the principal Indo-European languages. A contribution to the history of ideas, with the co-operation of colleagues and assistants. University Press, Chicago, 1949. xix + 1515 págs.
Authors: Meriggi Piero
Published: September 2017

Se reseñó: A Dictionary of selected synonyms in the principal Indo-European languages. A contribution to the history of ideas, with the co-operation of colleagues and assistants.
Antonio Vilanova, Erasmo y Cervantes. Barcelona, 1949. (C.S.I.C., Instituto "Miguel de Cervantes" de Filología Hispánica. Delegación de Barcelona.) 60 págs.
Authors: Bohigas Pedro
Published: September 2017

Se reseñó: Erasmo y Cervantes.
Dr. Andrés Laguna, "Peregrinaciones de Pedro de Urdemalas" (muestra de una edición comentada)
Authors: Bataillon Marcel
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
La pérdida de vocales átonas en la altiplanicie mexicana
Authors: Boyd-Bowman Peter
Published: September 2017

En este número no se incluyeron resúmenes ni palabras clave.
Boxeo femenino: Sacrificios, puños, sudor y lágrimas
Authors: De La Espriella Arenas Fernando Antonio , Segura Contreras Monica
Published: September 2017

El presente artículo es derivado de una investigación financiada por la Universidad de Córdoba; pretende desde el enfoque cualitativo develar la historia de vida de una excampeona mundial de boxeo femenino en Colombia. A partir de los relatos, que muestran su realidad individual y social, se hace un ejercicio de comprensión e interpretación de sentidos y significados, motivaciones, experiencias y vivencias entramadas en la vida de esta representante del género en el pugilismo nacional. Como resultados podemos encontrar una vida llena de sacrificios y privaciones, una familia resiliente y una mujer que desarrollo estrategias de resistencia para no dejarse devorar por las adversidades. Su vida es digna de ubicarla como referente y ejemplo de las generaciones futuras de deportistas; de ella como mujer tenemos mucho que aprender, por supuesto sobre boxeo, pero también y por encima de todo sobre nosotros mismos.
Incremento del dominio conceptual escolar con base en la interdisciplinariedad
Authors: Borrero De Castillo Yamile , Barros Agüero Jaime Enrique
Published: September 2017

Este artículo es extractado de la investigación Interdisciplinariedad de la Educación Física y las Ciencias Naturales para Mejorar los Aprendizajes en Niños de Tercer Grado de Básica Primaria realizado en la CUC durante 2013 y 2014, con el objeto de dar a conocer los resultados conceptuales mejorados en el aprendizaje de las Ciencias Naturales y la Educación Física. Como herramienta metodológica, la disciplinariedad aplicada en esta investigación, tuvo su base en los aportes conceptuales de Fogarty expresados en su obra Ten Ways to Integrated Curriculum, Educational Leadership 1991. Y los Modelos disciplinarios desarrollados por Cone Theresa, Peter Werner, Stephen Cone y colaboradores para la enseñanza de la Educacíón Física. Tomaron parte del estudio 42 estudiantes, llegándose a la conclusión que la hipótesis de trabajo se cumplió, por cuanto mejoró la efectividad de la interdisciplinariedad entre la Educación Física y las Ciencias Naturales evidenciado en un mejoramiento en el dominio de los conceptos básicos de ambas disciplinas por parte de las niñas. Se concluye además que la clase interdisciplinar permite un mejor ambiente de trabajo, mucho más gratificante para el docente y alumnos dados que genera una mayor motivación que da como resultado un aprendizaje con sentido y significación. Por lo anterior, se recomienda ampliar los alcances de la investigación en Barranquilla con el ánimo de incluir un mayor número de instituciones educativas y diferentes grados que permitan dar un diagnóstico más generalizado; implementar esta investigación en otras áreas del currículo, como Ciencias Sociales, Matemática o Estética y actualizar al maestro de básica primaria, en interdisciplinariedad, de forma que se puedan implementar en la escuela este tipo de herramientas metodológicas.
The Interventional Radiology Interest Group: An Integral Tool for Medical Student Recruitment
Authors: Maldow David , Murtha Jacqueline , Sasson Talia , Khanna Vinit
Published: September 2017

Education is evolving in the field of interventional radiology. Technical skills are no longer the primary focus of training, while a stronger emphasis is placed on longitudinal patient care. Interventional radiologists are now expected to perform rounds on their patients in the hospital and promote continuity of care in the outpatient setting (Murphy et al. Semin Intervent Radiol 2005;22:6-9). The recent establishment of residency programs in interventional radiology (RPIR) aims to foster this transition by integrating clinical rotations such as the intensive care unit and expanding resident time in the clinic (Siragusa et al. J Vasc Interv Radiol 2013;24:1609-12). With the new training model comes a greater need for early exposure of medical students to the field, as trainees now apply for RPIR during their 4th year of medical school. To address this issue, interventional radiology interest groups (IRIGs) have been developed by passionate students with a desire to educate their colleagues and further their own knowledge of IR. IRIGs inform medical students about the specialty through unique activities such as hands-on device workshops and information sessions. In coordination with supportive advisors, IRIGs play a vital role in recruiting talented trainees, many of whom may well become the next leaders of our field. This article will discuss the process of starting an IRIG and how to maximize available resources to foster its success.
Social Network Analysis in R: A Software Review
Authors: Adhikari Samrachana , Dabbs Beau
Published: September 2017

In education research, social network analysis is being widely used to study different interactions and their overall implications. Recently, there has also been a surge in the development of software tools to implement social network analysis. In this article, we review two popular R packages, igraph and statnet suite, in the context of network summarization and modeling. We discuss different aspects of these packages and demonstrate some of their functionalities by analyzing a friendship network of lawyers. Finally, we end with recommendations for using these packages along with pointers to additional resources for network analysis in R.
Integration von Produktionsdaten zur lebenszykluskostenorientierten Prozesskettenplanung
Authors: Labbus Ingo , Schmidt Christopher , Thiede Sebastian , Herrmann Christoph
Published: September 2017

Kurzfassung

In diesem Beitrag wird ein Konzept präsentiert, welches eine lebenszykluskostenorientierte Prozesskettenplanung ermöglicht. Spezialisierte Planungswerkzeuge greifen dafür auf eine integrierte Datenbasis (Planungs-, Inventar- und Live-Daten) zu. Es wird gezeigt, dass eine automatisierte Datendurchgängigkeit zwischen Fertigung und Planung mit den vorhandenen Standards OPC UA und AutomationML realisierbar ist. So können schon in der frühen Planung Energiebedarfe prognostiziert und Maschinenkomponenten dimensioniert werden, um Investitionsentscheidungen zu treffen.
Analyse und Prognose des Energiebedarfs im Karosseriebau
Authors: Teiwes Hanno , Thiede Sebastian , Rössinger Markus , Herrmann Christoph
Published: September 2017

Kurzfassung

Produzierende Unternehmen müssen frühzeitig im Planungsprozess Entscheidungen treffen, die den Energiebedarf zukünftiger Anlagen maßgeblich beeinflussen. Vor diesem Hintergrund stellt dieser Beitrag eine Methodik vor, die es ermöglicht, durch die Entwicklung einer Energiedatenbank Betriebsmittel bedarfsgerecht zu planen. Auf diese Weise gelingt es, den Energiebedarf von Anlagen zu senken und zielgerichtet die Energieeffizienz zu steigern.
Energieeffizienz mittels optimierender Produktionsplanung und -steuerung
Authors: Sobottka Thomas , Kamhuber Felix , Sihn Wilfried
Published: September 2017

Kurzfassung

Energieeffizienz ist aufgrund des zunehmenden gesellschaftlich-politischen Drucks, langfristig steigender Energiepreise sowie der Energiewende und ihrer Implikationen zu einem wichtigen Bestandteil des Zielsystems produzierender Unternehmen geworden. Großes Potenzial liegt darin, das Ziel der Energieeffizienz mittels der Produktionsplanung und -steuerung (PPS) zu verfolgen – allerdings fehlen den Unternehmen dafür aktuell die Planungswerkzeuge. Im folgenden Beitrag wird eine Planungsmethode vorgestellt, die genau hier Abhilfe schaffen soll: Mit einem neuartigen Simulator werden das Materialfluss- und Energiesystem eines Produktionssystems integriert abgebildet und mittels einer multikriteriellen Optimierung Produktionspläne erstellt, wobei auch die Anlagen-Steuerung in der Peripherie optimiert wird. Eine Industrie-Fallstudie in der Lebensmittelproduktion wird vorgestellt, in der ein erhebliches Optimierungspotenzial erzielt werden konnte.
Produktionseffizienz in der Kleinserie (ProeK)
Authors: Kampker Achim , Bergweiler Georg , Hollah Ansgar , Fiedler Falko , Hansen Jan Ole
Published: September 2017

Kurzfassung

Elektrofahrzeuge weisen im Vergleich zu konventionell angetriebenen Fahrzeugen aufgrund fehlender Erfahrungswerte sowie neuer Technologien während des Markthochlaufs hohe Industrialisierungskosten auf. In einem gemeinsamen Forschungsprojekt zwischen den E-Fahrzeugherstellern e.GO Mobile AG und StreetScooter GmbH, der Laser Bearbeitungs- und Beratungszentrum GmbH (LBBZ), der TRUMPF Laser- und Systemtechnik GmbH als System- und Fügespezialisten, dem Lehrgebiet Füge- und Trenntechnik der FH Aachen sowie dem Lehrstuhl Production Engineering of E-Mobility Components (PEM) der RWTH Aachen werden daher praxisorientierte technische Lösungen entwickelt, um Kleinserien im Zukunftsfeld der Elektromobilität möglichst kostengünstig, effizient und flexibel herstellen zu können.
Nonwork Trips Associated with Transit-Oriented Development
Authors: Laham Maria Luz , Noland Robert B.
Published: September 2017

An analysis of factors associated with nonwork trips was conducted. The key variable of interest was proximity to transit-oriented development areas around train stations in New Jersey. The data were derived from a questionnaire of households around eight train stations and stratified by distance from a station. The focus was on the mode used for trips to restaurants–coffee shops and grocery–food stores, two of the most common and frequent nonwork trips. The analysis focused on the choice of walking versus driving for these trips by using an instrumental variable probit model aimed at controlling for the endogeneity associated with self-selection bias (i.e., people who prefer not to drive choose more walkable neighborhoods). Results showed strong associations between proximity to transit-oriented development areas and walking trips, and these results hold when endogeneity is controlled for. Local street density and per capita vehicle ownership also had the expected effects on walking trips.
Origin Revenue Sources for Infrastructure Funding
Authors: Terry Jacob , Casello Jeffrey M. , Bachmann Chris
Published: September 2017

Cities require well-funded public infrastructure to function efficiently, but knowledge of public finance mechanisms among residents and decision makers may be deficient. This paper presents a thorough investigation of infrastructure funding flows to increase understanding, to catalyze further investigation in other jurisdictions, and to identify best practices. By using data from Waterloo, Ontario, Canada, funding was mapped for the four tiers of government—federal, provincial, regional, and municipal—contributing to infrastructure. The results demonstrate that significant opacity exists around municipal reserve funds and intergovernmental transfers because insufficient recording is associated with the origin revenues of these funds: where moneys first enter the government cycle. To compare across infrastructure systems, funding from each tier was used to find an average revenue share and estimated per capita funding per source for the water system and three transportation systems: auto, transit, and active transportation. Water infrastructure was funded through six origin revenue sources, with user fees and development charges funding 95% of expenditures. For transportation infrastructure, the auto system was funded through 16 origin revenue sources, transit through 13, and active transportation through seven. The auto and active transportation systems were 75% funded through mixtures of property tax, user fees, and development charges. The transit system received significant contributions from nonregional revenue sources because of capital projects developed in the study period. Active transportation, water, and parking expenditures are shown to use effective revenue sources, while transit and other auto expenditures used less effective sources because of the wide range of origin revenue sources.
Efficacy of the Herbicide Lancelot 450 WG (Aminopyralid + Florasulam) on Broadleaf and Invasive Weeds and Effects on Yield and Quality Parameters of Maize
Authors: Travlos Ilias , Apostolidis Vasilis
Published: September 2017

Reduced efficacy of several herbicides on some important broadleaf weeds might be due to the extended use of the specific active ingredients. In our study, field experiments were carried out in Greece in 2014 and 2015 to study the efficacy of the herbicide Lancelot 450 WG (aminopyralid 300 g ai/kg + florasulam 150 g ai/kg) compared to other herbicides against broadleaf weeds in maize. Effects on crop yield and quality parameters (nitrogen, protein, and oil content) were also evaluated. Our results showed that the ready mixture of aminopyralid + florasulam at the recommended dose of 33 g/ha resulted in a very good control of Xanthium strumarium, Amaranthus retroflexus, Cirsium arvense, and Solanum nigrum even at 28 DAT, providing a long-term effect. Efficacy of the specific mixture was also very efficient against the invasive weed species Physalis angulata L. Moreover, there were not any significant differences between the two doses of Lancelot 450 WG (33 and 66 g/ha) and Callisto 10 SC at double the recommended dose (1500 mL/ha) regarding yield of maize, with untreated plots and treated with Callisto 10 SC at the recommended dose (750 mL/ha) showing significantly lower yields. It has to be noted that even double the recommended dose of Lancelot 450 WG (66 g/ha) was highly selective to the crop, without any adverse effects on yield and quality parameters. Conclusively, Lancelot 450 WG could be proposed as a very efficient herbicide for the control of the major broadleaf weeds and alien, invasive species in maize crop.
Effect of Vegetative Propagation Materials on Globe Artichoke Production in Semi-Arid Developing Countries: Agronomic, Marketable and Qualitative Traits
Authors: Riahi Jouhaina , Nicoletto Carlo , Bouzaein Ghaith , Sambo Paolo , Khalfallah Karima
Published: September 2017

In Tunisia, globe artichoke is mainly propagated by underground dormant axillary buds (ovoli), which are removed from the field in August during the quiescence period. The high cost of in vitro-plants and the absence of specialized nurseries were among the reasons for the rise of heterogeneity and spread of diseases. The aim was to help farmers to improve artichoke yield and quality by ameliorating their vegetative propagation technique with low cost methods. Three plant cuttings management methods were tested: summer ovoli (T0); spring offshoots nursery’s cuttings forced to pass a vegetative rest period by stopping irrigation (T1); and offshoots nursery’s cuttings not forced (T2). The cuttings management can affect both yield and qualitative traits of artichoke. T1 nursery plants produced the heaviest primary heads, 7% and 23% higher than T2 and T0, respectively. T1 plants exhibited the highest yield during the harvest season, with +17.7% and +12.2% compared to T0 and T2, respectively. T0 and T1 showed the highest total antioxidant capacity and inulin content; the propagation method also affected the short-chain sugars ratio. T1 is a viable and sustainable alternative to the traditional one that does not heavily impact on growing costs and improves yield and quality of artichoke.
Choline Kinase, A Novel Drug Target for the Inhibition of Streptococcus pneumoniae
Authors: Zimmerman Tahl , Ibrahim Salam
Published: September 2017

Gram-positive pathogens, such as Streptococcus pneumoniae, can have deleterious effects on both human and animal health. Antibiotics and antimicrobials have been developed to treat infections caused by such pathogens and to prevent food contamination. However, these strategies have been increasingly thwarted by the emergence of resistant bacteria strains. Thus, new methods for controlling Gram-positive pathogen growth need to be continuously developed. Choline analogs, such as Hemicholinium-3 (HC-3), have been shown to be useful in blocking cell division in eukaryotic cells through the inhibition of choline kinase, an enzyme which catalyzes the production of phosphocholine from choline and ATP. In some Gram-positive pathogens, choline kinase is an important enzyme in the production of the cell wall element, lipoteichoic acid. However, it is not known if inhibiting this enzyme has any effect on cell division in Gram-positive bacteria. Using the R6 strain as a model, we tested the ability of HC-3 to block the activity of choline kinase in S. pneumoniae and inhibit cell growth. Mass-spectrometry measurements of crude extracts revealed that HC-3 blocked choline kinase activity. Turbidity measurements and population counts showed that HC-3 inhibited cell growth. Competition assays with choline suggested that HC-3 also blocked choline transporters. Western blots showed that lipoteichoic acid production was blocked in the presence of HC-3, and autolytic assays showed that this decrease in lipoteichoic acids caused cells to be more resistant to autolysis. Scanning electron microscopy revealed that HC-3 distorted the cell wall. This study thus establishes choline kinase as a novel drug target for S. pneumoniae.
Methods for Determination of the Degree of Iron Oxidation in LiFePO4
Authors: Malchik Fyodor , Kurbatov Andrey , Galeyeva Alina , Kamysbaev Duysek , Marincas Alexandru-Horatiu
Published: September 2017

The disposal of LiFePO4 (LFP) cathode material through oxidation in an air atmosphere is explained by its high chemical activity and high surface area (especially for nanoparticles). In this article, new methods for the determination of the degree of iron oxidation in LFP (oxidation degree) are taken into consideration, specifically those which do not require complicated hardware support. The proposed methods are based on electrochemical oxidation (coulometric method) and chemical oxidation (chemical oxidation in alkaline and acidic solutions). As an arbitration method for analyzing the iron state, the method of Mössbauer spectroscopy (being the most proven and reliable method) was chosen. With respect to the proposed methods for determination of the oxidation degree, the most reliable and quick approach is the titrimetric method (oxidation in an acidic medium), which is in good correlation with Mossbauer spectroscopy. The coulometric method is also able to determine the material oxidation degree (with some approximation), but it requires a number of conditions in order to eliminate errors.
A Software Reliability Model with a Weibull Fault Detection Rate Function Subject to Operating Environments
Authors: Song Kwang , Chang In , Pham Hoang
Published: September 2017

When software systems are introduced, these systems are used in field environments that are the same as or close to those used in the development-testing environments; however, they may also be used in many different locations that may differ from the environment in which they were developed and tested. As such, it is difficult to improve software reliability for a variety of reasons, such as a given environment, or a bug location in code. In this paper, we propose a new software reliability model that takes into account the uncertainty of operating environments. The explicit mean value function solution for the proposed model is presented. Examples are presented to illustrate the goodness of fit of the proposed model and several existing non-homogeneous Poisson process (NHPP) models and confidence intervals of all models based on two sets of failure data collected from software applications. The results show that the proposed model fits the data more closely than other existing NHPP models to a significant extent.
A 2D-View Depth Image- and CNN-Based 3D Model Identification Method
Authors: Hong Yiyu , Kim Jongweon
Published: September 2017

With the rapid development of three-dimensional (3D) technology and an increase in the number of available models, issues with copyright protection of 3D models are inevitable. In this paper, we propose a 2D-view depth image- and convolutional neural network (CNN)-based 3D model identification method. To identify a 3D model, we first need an adequate number of the modified versions that could be made by copyright infringers. Then, they can be represented by a number of 2D-view depth images that are captured from evenly distributed vertices on a regular convex polyhedron. Finally, a CNN is trained by these depth images to acquire the capability of identifying the 3D model. The experiment carried out with the dataset of Shape Retrieval Contest 2015 (SHREC’15): Non-Rigid 3D Shape Retrieval shows the practicability of our method, which yields 93.5% accuracy. The effectiveness of the proposed method is demonstrated via evaluation in the latest standard benchmark SHREC’17 Deformable Shape Retrieval with Missing Parts. It clearly shows superior or comparable performance to state-of-the-art methods, shown by the fact that it is in the top three of the 11 participating methods (without counting different runs).
Robust Background Subtraction via the Local Similarity Statistical Descriptor
Authors: Zeng Dongdong , Zhu Ming , Zhou Tongxue , Xu Fang , Yang Hang
Published: September 2017

Background subtraction based on change detection is the first step in many computer vision systems. Many background subtraction methods have been proposed to detect foreground objects through background modeling. However, most of these methods are pixel-based, which only use pixel-by-pixel comparisons, and a few others are spatial-based, which take the neighborhood of each analyzed pixel into consideration. In this paper, inspired by a illumination- invariant feature based on locality-sensitive histograms proposed for object tracking, we first develop a novel texture descriptor named the Local Similarity Statistical Descriptor (LSSD), which calculates the similarity between the current pixel and its neighbors. The LSSD descriptor shows good performance in illumination variation and dynamic background scenes. Then, we model each background pixel representation with a combination of color features and LSSD features. These features are then embedded in a low-cost and highly efficient background modeling framework. The color and texture features have their own merits and demerits; they can compensate each other, resulting in better performance. Both quantitative and qualitative evaluations carried out on the change detection dataset are provided to demonstrate the effectiveness of our method.
A New Approach to Fall Detection Based on the Human Torso Motion Model
Authors: Yao Leiyue , Min Weidong , Lu Keqiang
Published: September 2017

This paper presents a new approach for fall detection based on two features and their motion characteristics extracted from the human torso. The 3D positions of the hip center joint and the shoulder center joint in depth images are used to build a fall detection model named the human torso motion model (HTMM). Person’s torso angle and centroid height are imported as key features in HTMM. Once a person comes into the scene, the positions of these two joints are fetched to calculate the person’s torso angle. Whenever the angle is larger than a given threshold, the changing rates of the torso angle and the centroid height are recorded frame by frame in a given period of time. A fall can be identified when the above two changing rates reach the thresholds. By using the new feature, falls can be accurately and effectively distinguished from other fall-like activities, which are very difficult for other computer vision-based approaches to differentiate. Experiment results show that our approach achieved a detection accuracy of 97.5%, 98% true positive rate (TPR) and 97% true negative rate (TNR). Furthermore, the approach is time efficient and robust because of only calculating the changing rate of gravity and centroid height.
Principles and Application of Polyimide Fiber Bragg Gratings for Surface Strain Measurement
Authors: Sun Yangyang , Liu Jianyong , Wang Yuan , Zhang Qinghua , Duan Jianli , Zhang Zhenglin , Huang Xiaodi , You Zewei
Published: September 2017

Although theoretical investigation has demonstrated that fewer strain transfer layers imply a greater strain transfer ratio, as well as increased accuracy, most researchers are still focused on investigating encapsulated Fiber Bragg gratings (FBGs) in surface strain measurements. This is because, in a traditional view, bare FBGs are too fragile to be mounted on the substrate for measuring surface strain. Polyimide FBGs may provide a better balance point between accuracy and protection. A new method to measure surface strain with polyimide fiber Bragg gratings is proposed. Bare polyimide FBGs have a polyimide coating, but like regular non-coated FBGs. This gives polyimide FBGs a higher strain transfer ratio and response frequency. Bare polyimide FBGs can be considered as uncoated FBGs. The coupling of the matrix material of polyimide FBGs is improved as compared to FBGs without coating. In order to verify the capacity for surface strain measurement, polyimide FBGs are mounted to obtain the surface strain of a concrete specimen with SM130-700 interrogator from Micron Optics Incorporation (MOI) with a sampling frequency maximum of 2000 Hz. The experiment demonstrates that polyimide FBGs work well even in dynamic surface strain measurements such as explosion measurement. Validation experiment in this paper also proposed that fewer strain transfer layers can increase dynamic response frequency and coupling between FBG and substrate.