bluuebunny/crossref_metadata_2025 huggingface dataset:
Cost optimization for the 100% renewable electricity scenario for the Java-Bali grid
Authors: Günther Matthias , Eichinger Michael
Published: December 2018

A 100% renewable electricity supply is no insurmountable technical problem anymore after the respective technologies to harvest the energy from multiple renewable energy sources have been developed and have reached a high level of maturity. A problem may rather be suspected to reside on the economic side of an exclusively renewable electricity supply. The present study examines the economic implications of a renewable energy scenario for the Java-Bali grid. Based on given energy supply scenarios, the costs of an electricity supply from renewable energy sources alone are determined. Economic optimum configurations are determined for which the annual system costs and accordingly the power generation costs are minimized. First the system running costs are considered, i.e. the operation and maintenance costs as well as the costs of the continuous renovation of system components, while capital costs are not taken into account. After this the capital costs are taken into consideration, and total system costs and power generation costs are determined. The main result is a specification of economic optimum system configurations. One important result is that a future electricity supply from renewable resources alone is not more expensive than the current power generation in developed countries. Another result is that the integration of special long-term storage into the Java-Bali grid, like for instance methane storages, besides pumped storages and batteries, is not economically favourable if further moderate battery cost reductions are reached.Article History: Received May 18th 2018; Received in revised form August 16th 2018; Accepted October 1st 2018; Available onlineHow to Cite This Article: Günther, M., Eichinger, M., (2018) Cost Optimization for the 100% Renewable Electricity Scenario for the Java-Bali Grid, International Journal of Renewable Energi Development, 7(3), 269-276.https://doi.org/10.14710/ijred.7.3.269-276
Announced or Surprise Inspections and Oligopoly Competition
Authors: Dechenaux Emmanuel , Samuel Andrew
Published: December 2018

To enforce compliance, regulators often choose between announced or unannounced (surprise) inspections. We analyze the impact of these inspection regimes on firms’ compliance choices in a multiple stage oligopoly game of quantity competition with endogenous compliance, monitoring and avoidance. In equilibrium, whether unannounced inspections achieve a higher level of compliance than announced inspections depends on the number of firms, demand and the cost of compliance. Furthermore, the impact on compliance of increasing the fine, the supervisor’s wage or the probability of inspections also depends on market size and structure and may be non-monotonic. Finally we provide conditions under which a welfare maximizing regulator will prefer an unannounced to an announced regime. Thus, our results suggest that when choosing the appropriate inspection regime, regulators should account for market characteristics, especially if compliance maximization is the objective.
Diagenesis and rock properties of sandstones from the Stormberg Group, Karoo Supergroup in the Eastern Cape Province of South Africa
Authors: Chima Priscilla , Baiyegunhi Christopher , Liu Kuiwu , Gwavava Oswald
Published: December 2018

Diagenesis is one of the factors that affect reservoir quality in sandstones. Knowledge of diagenetic transformation and how it impacts the development of porosity in reservoirs rocks is thus key to successful mineral exploration. To date, little is known about the diagenesis of the uranium-hosted sandstones of the Stormberg Group, Karoo Basin, South Africa. Petrographic study, scanning electron microscopy (SEM) aided with energy dispersive X-ray (EDX), and X-ray diffraction (XRD) analyses were employed for the diagenetic study of the sandstones. This study aims to provide an account of the diagenesis of these rock units and how it impacts their reservoir quality. The diagenetic processes that have affected the sandstones are cementation, compaction, recrystallization, replacement, mineral overgrowth and dissolution. These processes have passed through early, late and uplift-related diagenesis. Formation of authigenic minerals and precipitation of the mineral cements occurred during different diagenetic phase but mostly during the early diagenetic stage. This stage was followed by lithification, which resulted in increased in grain packing, loss of pore spaces and thinning of bedding. Quartz and feldspar overgrowths, chloritization, muscovitization, concave-convex contacts, recrystallization, albitization and suture contacts are present in the late diagenetic stage. The uplift-related diagenetic stage was affected by calcitization, grain deformation and fracturing, dissolution and saussuritization. All these diagenetic processes largely affected the porosity and permeability of the sandstones. Primary and secondary porosities were both observed in the sandstones. In general, there is no single diagenetic process that is controlling the pattern of porosity evolution in the sandstones. On the other hand, the presence of fractured and dissolution pores tend to increase the porosity, thus enhancing the reservoir quality. This study shows that diagenesis has significantly altered the original petrologic characteristics of the sandstones which have induced considerable deterioration and heterogeneity in the reservoir quality of the Stormberg Group sandstones in the Main Karoo Basin of South Africa.
A self-cleaning surface based on heat treatment of g-C3N4-coated wood prepared by a rapid and eco-friendly method
Authors: Dong Yue , Ji Xiaodi , Li Fenglong , Nguyen Tat Thang , Huang Zhanhua , Guo Minghui
Published: December 2018

A self-cleaning surface treatment has been developed, which is prepared by an eco-friendly and effective two-step method. First, graphitic carbon nitride (g-C3N4) was deposited on the wood surface by vacuum impregnation, followed by heat treatment. The morphology, weight change, dimensional stability, crystal and micro structure, and elemental composition of the wood samples were determined by photography, weighting, swelling rate determination, X-ray diffraction (XRD) and scanning electron microscopy and energy dispersive X-ray analysis (SEM-EDXA). Moreover, contact angle measurements and photocatalytic degradation experiments were carried out with Rhodamine B as the target. It was demonstrated that g-C3N4 is successfully deposited on the wood surface, which lowers the heat treatment temperature and renders photocatalytic properties to the coating. The heat treatment at around 210°C strengthened the immobility of g-C3N4 and increased the surface hydrophobicity. Moreover, the better photocatalytic ability of the surface is accompanied with self-cleaning effects.
Postbuckling behavior of functionally graded CNT-reinforced nanocomposite plate with interphase effect
Authors: Srivastava Ashish Kumar , Kumar Dinesh
Published: December 2018

The present paper is aimed to study the buckling and postbuckling response of functionally graded carbon nanotube (FG-CNT)- magnesium (Mg) nanocomposite plate with interphase effect. Interphase zone is characterized by employing a cohesive zone model for its elastic modulus and thickness. An equivalent solid fiber (ESF) of CNT and interphase is modeled and dispersed into the matrix material by utilizing random sequential adsorption (RSA) technique. The effective elastic properties of the nanocomposite are computed by finite element method (FEM) based numerical homogenization technique. The obtained elastic properties of nanocomposite are utilized to investigate the buckling and post-buckling behaviour of different functionally graded (i.e., FG) nanocomposite plates modeled by varying the volume fraction of CNT/ESF along thickness direction, under in-plane compressive loads. The non-linear formulation is based on first-order shear deformation theory and von Karman’s assumptions. It is found that considering the interphase between CNT and Mg matrix would result in decrease in buckling load and postbuckling strength of FG-CNT-reinforced nanocomposite plate as compared to nanocomposite without interphase. It is also reported that the higher volume fraction of CNTs near top and bottom surfaces than the middle portion of nanocomposite plate provide better resistance to buckling and postbuckling.
False discovery control for penalized variable selections with high-dimensional covariates
Authors: He Kevin , Zhou Xiang , Jiang Hui , Wen Xiaoquan , Li Yi
Published: December 2018

Modern bio-technologies have produced a vast amount of high-throughput data with the number of predictors much exceeding the sample size. Penalized variable selection has emerged as a powerful and efficient dimension reduction tool. However, control of false discoveries (i.e. inclusion of irrelevant variables) for penalized high-dimensional variable selection presents serious challenges. To effectively control the fraction of false discoveries for penalized variable selections, we propose a false discovery controlling procedure. The proposed method is general and flexible, and can work with a broad class of variable selection algorithms, not only for linear regressions, but also for generalized linear models and survival analysis.
Kritikkonstellationen
Authors: Lorenz Stephan
Published: December 2018

In der Debatte um Möglichkeiten von kritischen Gesellschaftsanalysen, namentlich von einer Soziologie der Kritik, die sich von kritischer Soziologie abgrenzt, fehlen methodologische und methodische Reflexionen. Solche zeigen, dass weder theoretische Kritikperspektiven einfach angewendet noch kritische Maßstäbe empirisch bloß aufgelesen werden können. Im ersten, konzeptuellen Teil des Beitrags werden der falschen Konfrontation eine prozedurale Perspektive entgegengesetzt, das Verhältnis von Nähe und Distanz zwischen der Soziologie und den von ihr erforschten Akteuren genauer untersucht sowie unterschiedliche Typen von Kritik benannt. Im zweiten Teil wird an empirischen Beispielen demonstriert, wie Soziolog/innen bei ihren Fallrekonstruktionen eine Position als Kritiker/innen einnehmen. Dabei werden sowohl Kritiken der Akteure aufgegriffen als auch deren Positionierungen kritisch analysiert – und beides wird als fallbezogen miteinander verwobene Kritikkonstellationen reflektiert. Resümiert wird, inwiefern sich kritische Analysen letztlich auf soziologische Verfahrensweisen stützen können müssen.
Warten und Warten-Lassen
Authors: Göttlich Andreas
Published: December 2018

Der vorliegende Text betrachtet eine aus dem Alltag wohlvertraute Form sozialer Beziehung: wenn eine Person auf eine andere wartet bzw. eine andere Person auf sich warten lässt. Besondere Berücksichtigung wird hierbei dem Machtaspekt zuteil, denn jemanden warten zu lassen, bedeutet, dem Gegenüber ein Zeitregime aufzuerlegen. Die Untersuchung der Wartebeziehung erlaubt insofern Einblicke in die Grundmechanismen sozialer Auferlegung und damit der Ausübung von Macht.
Die „richtige“ Nähe und Distanz zum eigenen Kind
Authors: Sieben Anna , Pauge Matthias , Ruppel Paul Sebastian
Published: December 2018

Dieser Artikel rekonstruiert die Positionierungen einer Mutter hinsichtlich der Frage, wie und von wem sie ihren Sohn betreuen lässt. Im problemzentrierten Interview kreisen ihre Überlegungen um die Frage, ob sie ihren Sohn zu häufig abgibt. Im Gespräch mit der Interviewerin werden verschiedene Normen „guter“ Mutterschaft thematisiert. Insgesamt lässt sich an diesem Einzelfall zeigen, dass es in der aktuellen Kultur ‚guter Elternschaft‘ – bisweilen als intensive parenting bezeichnet – schwer ist, die eigenen Bedürfnisse sowie die wahrgenommenen Bedürfnisse des Kindes in Einklang zu bringen. Die Ergebnisse der Einzelfallanalyse beruhen auf einer innovativen Kombination von Auswertungsmethoden: Die Resultate, die sich einer Anwendung der dokumentarischen Methode als Einzelinterpretation verdanken, werden zu Deutungen in Beziehung gesetzt, die auf zwei tiefenhermeneutisch orientierten Gruppeninterpretationen basieren. Diese ungewöhnliche Methodenkombination erweist sich als produktiv. Sie gestattet es, die Komplexität der Positionierungen der Mutter sowie die ‚Vielstimmigkeit‘ im Feld der Mutterschaft zu erfassen.
Self-Selected Motivational Music on the Performance and Perceived Exertion of Runners
Authors: Clark Jamie C. , Baghurst Timothy , Redus Brady S.
Published: December 2018

Clark, JC, Baghurst, T, and Redus, BS. Self-selected motivational music on the performance and perceived exertion of runners. J Strength Cond Res 35(6): 1656–1661, 2021—Music is used by athletes and exercisers to improve performance outcomes, but it is less known whether its properties can enhance performance at maximal intensity. This study measured subjects' performance time, average heart rate, and rating of perceived exertion (RPE) on a 1.5-mile running trial when listening to self-selected motivational music vs. no music. Subjects were 17 runners (male = 8, female = 9) who completed 2, 1.5-mile time trials in a repeated-measures randomized crossover design. For the music trial, subjects were asked to select and listen to a motivational song, which was scored by the subject for its motivational quotient using the Brunel Music Rating Inventory-2. Subjects improved mean performance time by 10 seconds and increased average heart rate by 4.5 b·min–1 in the motivational music condition, but neither were significantly different (p = 0.09, 0.10). However, the music condition significantly lowered subjects' RPE by 0.5 points (p = 0.02). That motivational music improved performance time, although not significant, is noteworthy considering the significantly lower RPE reported. Therefore, ergogenic qualities of motivational music may elicit a greater performance from experienced runners while simultaneously lowering perception of effort when working at maximal intensity.
KOMPETENSI PAEDAGOGIK GURU PENDIDIKAN AGAMA ISLAM TERHADAP MOTIVASI BELAJAR SISWA SMP
Authors: Dedih Ujang , Nurajijah Ai Irma
Published: December 2018

The purpose of this study was to determine the reality of student responses to the teacher's paedagogic competence; to find out the reality of student learning motivation to take PAI lessons; and to find out the reality of the relationship between student responses to the competence of PAI teachers with their learning motivation in participating in PAI lessons. what is used in this study is the correlation method. While the data collection technique uses observation and questionnaire distributed to 34 class VIII students of SMPN 17 Kota Bandung as respondents. Quantitative data were obtained and analyzed using statistical analysis. From the results of the study it was found that: the reality of student responses to the teacher's paedagogic competence is included in the high qualification, this is evident from the results of the average score of 15 questionnaire question items that were submitted at 4.21; the reality of students' learning motivation to participate in PAI subjects is included in high qualifications, this is evident from the results of the average score of 15 questionnaire questions asked for 4.05.
The Crisis of Madrasa Graduates: A Search for Identity in the Pakistani Society
Authors: BIN MASOOD Farid , KHAN Umair Ali
Published: December 2018

Madrasah had remained the traditional institution of education in the Muslim history and remained functional in the pre-British era in the sub-continent. Historically, there had been no distinction between the religious and secular education in the madrasahs, but after the arrivalof British imperialism which led to the subjugation and oppression of existing institutions which also affectedthe Madrasah curriculum leading to a gradualdecay in Madrasah to play any role in the society. This existential crisis faced by the madrasah—both as an institution and by its graduates—was expected to end with the inception of Pakistan with the support of religious Ulema and the Muslim masses however the adaptation of the modern education system in Pakistan only added more to the existing problem. The current research employed a survey method to explore the professions graduates from madrasahs are adapting in order to play a contributing role for the welfare of the state and society. Results are indicative that a large number of graduates are forced to take up petty professions whose pay is even less than the minimum wage criteria set by the state of Pakistan and the world bank. Analysis of the data indicated that these professions include: madrasah teachers, imams, clerks at madrasahs, writers in low-rated newspapers, small shopkeepers. A large number of graduates join voluntary missionary organizations and religious political parties. Research also showsthat few of the graduates indulge in militant organizations.
Antiproliferative Activity of Anthocyanins Pure Extracts from Mulberries and Raspberries on HeLa and A2780 Human Cancer Cell Lines
Authors: NISTOR Mǎdǎlina , GHIMAN Raluca , AYVAZ Huseyin , RUGINǍ Dumitrița , MADA Diana , STǍNILǍ Andreea , SOCACIU Carmen , DIACONEASA Zorița
Published: December 2018

Red berries are important sources of bioactive compounds and they are known to provide unique health benefits. Lately, it has been proved that anthocyanins have health benefits against degenerative diseases such as cardiovascular disease, cancer or diabetes. Accordingly, the aim of this study was to characterize the anthocyanin content of anthocyanins pure extracts (APEs) obtained from raspberries (Rubus sp.) and mulberries (Morus sp.) and to evaluate their antiproliferative effect in vitro. Upon chromatographic analysis, three anthocyanins were identified in purified extracts of mulberries (M-APEs), with cyanidin-3-O-glucoside being more abundant. On the other hand, purified extracts of raspberries (R-APEs) contained 2 anthocyanins, both identified as cyanidin-derivatives. The in vitro test demonstrated that APEs decreased the proliferation on both HeLa and A2780 human cancer cell lines in a dose dependent manner, demonstrating that these two different berries are both rich sources of anthocyanins and are able to exert antiproliferative proprieties toward cervical and ovarian cancer.
Knowledge about Alzheimer's disease in the Brazilian population
Authors: Amado Daniel Krempel , Brucki Sonia Maria Dozzi
Published: December 2018

ABSTRACT Dementia is a very common disease, but the general population's knowledge about its main etiology, Alzheimer's disease (AD), is still poor, leading to delayed seeking of healthcare services, less prevention of disease by lifestyle changes and more difficulty in managing the care of the demented. Objective: To measure knowledge about AD in a Brazilian sample, taking into account some demographic variables. Methods: A link to a self-administered online questionnaire was sent by email and via other social media to anyone older than 18 years old. Our questionnaire contained sociodemographic questions and the Alzheimer's Disease Knowledge Scale (ADKS), a well-established scale comprising 30 “true or false” questions about AD. Results: 1,414 people (1,076 females), with a mean age of 42.3 years (SD ± 14.1), and 87.4% having more than 11 years of schooling, answered the online questionnaire. The mean total score for the ADKS was 21.6 out of 30 points (SD ± 3.73); however when we excluded health professionals (36.4% of the sample), it dropped to 20.5/30 (SD ± 3.51). The scores were positively influenced by educational level, professional skills (better for health professionals, mainly physicians) and by age (younger than 65 years). Being a caregiver or family member did not influence the knowledge about disease. Discussion: Despite the high prevalence of AD, few studies have been conducted in Brazil regarding the population's knowledge about the disease. Our study revealed a lack of information about AD in our country, even in relatives and caregivers of demented patients.
Grade I meningiomas with atypical characteristics: a worse prognosis
Authors: Marcos Débora S. , Paiva Neto Manoel A. , Góes Pedro , Oshima Celina T. F. , Silva Marcelo S. , Stávale João N.
Published: December 2018

ABSTRACT The study reviewed the histology of cases of grade I meningiomas with spontaneous necrosis, grade I without necrosis and grade II meningiomas, to evaluate the histological and immunohistochemical factors of the patients’ prognosis, while correlating the clinicopathological features with the clinical follow-up of the patients. A review of 47 cases from the Department of Pathology of UNIFESP was performed and the samples were submitted to immunohistochemical examination with the p53 protein, Ki-67 cell proliferation factor and progesterone receptor markers. A greater expression was found in the progression of several degrees of aggressiveness for p53 and Ki-67, and a higher frequency of progesterone receptors in the lower degrees. The group of grade I meningiomas with spontaneous necrosis showed histological and immunohistochemical indexes that approximate those of the grade II meningioma. This suggests a worse prognosis for grade I meningiomas with necrosis.
Governamentalidade e Soberania na Fronteira Brasil-Bolívia: Segurança Nacional e Saúde Pública como Dispositivos de Poder
Authors: Costa Gustavo Villela Lima da
Published: December 2018

RESUMO Este artigo propõe uma análise da governamentalidade estatal fronteiriça, a partir de seus principais dispositivos de poder em ação: Segurança e Saúde, em que as esferas “públicas” e “nacionais” se tornam cada vez mais imbricadas. Essa gestão estatal se baseia na visão da fronteira como limite, como área de perigo e contágio, e é legitimada, localmente, por um “ethos” militar construído ao longo da história de Corumbá-MS. Na primeira parte do artigo, observaremos etnograficamente a atuação dessa soberania territorial e política do Estado, com foco na mudança do papel das forças armadas, que atuam cada vez mais com o papel de polícia num processo, em curso, de reconfiguração das políticas de segurança na fronteira. Na segunda seção do texto, articularemos as políticas de saúde na região com esse processo de securitização, observando desde as operações de vacinação, passando por barreiras sanitárias, chegando até a maternidade municipal, no caso do atendimento às gestantes bolivianas. Esta pesquisa nos permite compreender distintas situações de conflito em torno dos paradigmas estatais e da ubiquidade dos valores nacionais que tendem não apenas a recusar a alteridade na fronteira, mas também, a (re)produzi-la de modo negativo.
O Seguro Social e a Construção da Proteção do Trabalho no Brasil
Authors: Lanzara Arnaldo Provasi
Published: December 2018

RESUMO A função protetora do seguro social mostrou-se fundamental em estabilizar as expectativas dos assalariados quanto à manutenção das condições de sua independência social, constituindo-se numa propriedade para a segurança das coletividades fortemente imbricada à ideia de pertencimento coletivo. Por portar tais características, o seguro social desempenhou um importante papel em sociedades estruturalmente desiguais e caracterizadas por certa rarefação de organizações coletivas vinculadas ao trabalho. Este estudo demonstra como a regulação do mercado de trabalho brasileiro, desde sua origem, dependeu dos benefícios do seguro social para fixar as expectativas do trabalhador em torno da sua inscrição no assalariamento formal. A hipótese a ser aventada, neste estudo, é que as elites estatais brasileiras, responsáveis por implementar a política social e trabalhista nas décadas de 1930 e de 1940, se utilizaram deliberadamente desses benefícios como estratégia de indução institucional para adensar a base de organização dos sindicatos e ampliar o alcance da legislação social.
Nursing and light technologies for a peace culture within the family
Authors: Fernandes Hugo , Horta Ana Lúcia de Moraes
Published: December 2018

ABSTRACT Objective: To reflect on technologies for the peace culture that can be used in family nursing. Method: Theoretical essay, based on the premises of non-violence and peace culture. Results: Four light technologies are singled out for the peace culture within families: nonviolent communication, qualified listening, conflict mediation, and restorative circles. Conclusion: The technologies proposed can be used by nurses to promote care and policies aiming at a peace culture and non-violence in families, with the objective of assisting in the obtainment of the well-being for family systems and their correlations.
Developing a nursing healthcare protocol: a case report
Authors: Figueiredo Talita Wérica Borges , Mercês Nen Nalú Alves das , Lacerda Maria Ribeiro , Hermann Ana Paula
Published: December 2018

ABSTRACT Objective: to report the use experience of convergent healthcare research for developing a nursing care protocol. Method: convergent care research developed in university hospital, from July to December 2016, with 27 participants. Results: the stages of the research and its results are described in the steps: conception, instrumentation, screening and analysis. The end result was the nursing care protocol in day zero of hematopoietic stem cell transplantation. Conclusion: convergent care research was an appropriate method for developing the care protocol, and an important contribution to the approximation between theory and practice. The nursing care protocol was the result of this study and confirmed both the purpose of the research as a professional Master's in acquiring knowledge aimed at improving professional practice.
Between State, society and family: the care of female caregivers
Authors: Souza Irene Duarte , Pereira Jéssica de Aquino , Silva Eliete Maria
Published: December 2018

ABSTRACT Objective: to investigate the care provided by family female caregivers of elderly dependents who have been monitored by public home care and its social repercussions, discussing the facets between State, society and families. Method: descriptive cross-sectional study, with 45 caregivers of elderly patients accompanied by Home Care Services. Data were collected by means of a structured script. The discussion was elaborated in light of the works "Cuidado e cuidadoras: as várias faces do trabalho do 'care'" (Care and female caregivers: the several faces of the care work) and "Gênero e trabalho na França e no Brasil" (Gender and work in France and Brazil). Results: Most caregivers were women (95%) who performed home care at several places and incorporated hospital equipment into everyday life. They have been caregivers for four and a half years, working 18 hours a day on average; they presented average age of 55 years; 82% were ill, and 43% had no income. Conclusion: the study demonstrated the relevance of the care of female caregivers to society as well as their invisibility to public health and social policies.
Construction and validation of a distance Basic Life Support Course
Authors: Costa Isabel Karolyne Fernandes , Tibúrcio Manuela Pinto , Melo Gabriela de Sousa Martins , Leite José Eugênio Lopes , Dantas Rodrigo Assis Neves , Torres Gilson de Vasconcelos
Published: December 2018

ABSTRACT Objective: to describe the content construction and validation process of the Distance Education Basic Life Support Course. Method: methodological study, developed through literature review, outlined in the light of the Bloom's Taxonomy and Ausubel's Meaningful Learning Theory. For validation, the analysis was performed with judges, using a structured tool. Results: the construction of the distance course was complex and challenging, since it was tried to develop it with logical-methodological coherence, considering the constructivist perspective, representing an advance in the process of dissemination of the Urgency and Emergency teaching culture. As for the content validation process, it was verified that of the 16 suggestions made by the judges, 14 were accepted and two rejected. Conclusion: the course had its contents validated by experts.
Nurses' contributions to good practices in child care: an integrative literature review
Authors: Góes Fernanda Garcia Bezerra , Silva Maria da Anunciação , Paula Geicielle Karine de , Oliveira Luíza Pereira Maia de , Mello Nathalia da Costa , Silveira Sthéfany Suzana Dantas da
Published: December 2018

ABSTRACT Objective: to identify scientific evidence on the contribution of nurses' work to good practices in child care in the Brazilian literature. Method: integrative review of the literature, carried out in Latin American and Caribbean in Health Sciences Literature (LILACS), Medical Literature Analysis and Retrieval System Online (MEDLINE), Brazilian Nursing Database (BDENF), Cumulative Index to Nursing and Allied Health Literature (CINAHL) and Scientific Electronic Library Online (SCIELO) database, from 2008 to 2018. Results: 14 complete studies were selected for interpretative analysis. Two categories allowed responding to the initial questioning of the study, namely: Nurses' contributions in child care; and Limits for the nurse's role in child care. Conclusion: evidences show the importance of nurses in child care for the promotion of comprehensive care for children and their families. However, there are socioeconomic, cultural, institutional and technical factors that hinder the nurses' performance in this setting.
Quality of life in children with kidney transplant: Systematic review
Authors: Araújo Noélia Souza Santos , Pereira Rogério Rodrigues Floriano , Fram Dayana , Hino Paula , Longo Maria Cristina Barbosa , Taminato Monica
Published: December 2018

ABSTRACT Objective: To identify in the literature studies that evaluate the quality of life in pediatric patients with kidney transplant through use of specific, validated instruments in Pediatrics. Method: Systematic review of the literature with searches conducted in the following databases: Medline, PubMed, LILACS, CINAHL, SciELO and Cochrane Library. Main keywords: Quality of life, Kidney transplantation and Pediatrics. Results: A total of 366 studies were selected and eight observational studies were included that evaluated the quality of life of children with kidney transplant by means of evaluation instruments of quality of life. Conclusion: The quality of life of children with kidney transplant is inferior compared to healthy children. The post-transplant period presents better results compared to pre-transplant children. The identification of mental, physical and social conditions related to the quality of life of this population allows for better planning the assistance provided to them.
Reflections on local participatory democracy in Latin America
Authors: Addor Felipe
Published: December 2018

Abstract This work presents reflections on the field of participatory democracy in Latin America, based on the analysis of the experiences of Cotacachi in Ecuador, and Torres in Venezuela, which are examples of great popular participation at the local level. The study proposes to interpret the experiences from a Latin American point of view, considering the singularities of each municipality analyzed. The aim is to identify which factors contribute to the emergence and consolidation of mechanisms of participation in the public policy decision-making process. In order to approximate the democratic theory of the context of Latin America, the study presents an analysis structured in two relevant concepts for the theory: agency and public space. These concepts were essential to identify which factors allowed the creation and consolidation of practices of participatory democracy at the local level. The analysis of the experiences resulted in a list of seven factors that were fundamental for their advancement and diffusion, factors that may represent important guidelines for the development of new democratic practices in countries of the region. Finally, the study present some reflections on the challenges that must be overcome to expand the local power and popular participation in Latin America.
A consolidação do termo direito à cidade na cidade de São Paulo a partir das Jornadas de Junho: uma articulação hegemônica?
Authors: Krieger Morgana G. Martins , Leblanc Esther M.
Published: December 2018

Resumo Utilizando a teoria política do discurso (TPD), desenvolvida por Laclau e Mouffe, como lente teórica, este artigo tem o intuito de investigar se o direito à cidade pode ser considerado uma articulação hegemônica na cidade de São Paulo. Para isso, percorremos historicamente o surgimento do termo e salientamos a emergência de grupos que se relacionam com este tema a partir das Jornadas de Junho de 2013: um evento que desestabilizou o sentido atribuído à hegemonia prévia, a cidade do capital. A resposta do poder municipal às manifestações foi a implantação da Coordenação de Promoção do Direito à Cidade, em uma tentativa de tornar o termo um ponto nodal. Ao analisar o discurso dos diferentes grupos, chegamos à conclusão de que o direito à cidade assume o papel de uma contra-hegemonia que se relaciona de forma antagônica com a hegemonia vigente. A principal contribuição do artigo está em identificar e analisar os diferentes significados adotados para o termo direito à cidade em São Paulo e como os atores mapeados interagem discursivamente no intuito de propor novas práticas de produção do espaço urbano.
Fatores críticos de sucesso das Parcerias Público-Privadas: aspetos político-institucionais. Estudo de caso das rodovias em Portugal
Authors: Firmino Sandra I.
Published: December 2018

Resumo As Parcerias Público-Privadas (PPP) são arranjos institucionais que envolvem atores públicos e privados numa relação contratual de longa duração. Assumindo-se como contratos incompletos, propendem para o aumento dos custos de transação e estão associadas aos problemas típicos das relações de principal-agente. Neste contexto, a academia tem dedicado atenção ao estudo dos fatores críticos para o bom desempenho das PPP, entre os quais, os fatores de natureza política e institucional, a que dedicamos o artigo. Por meio de uma metodologia qualitativa, assente na realização de entrevistas em profundidade e numa criteriosa análise documental, o artigo propõe-se estudar o caso das PPP de infraestruturas rodoviárias em Portugal, com falhas já identificadas e atualmente sob forte escrutínio público.
Consumo de formulações emagrecedoras e risco de transtornos alimentares em universitários de cursos de saúde
Authors: Silva Gabriela Avelino da , Ximenes Rosana Christine Cavalcanti , Pinto Tiago Coimbra Costa , Cintra Joanna D’Arc de Souza , Santos Alisson Vinícius dos , Nascimento Vanigleidson Silva do
Published: December 2018

RESUMO Objetivo Avaliar o consumo de formulações emagrecedoras e sua possível associação com o risco de transtornos alimentares (TAs) em universitários de cursos de saúde de diversos níveis socioeconômicos. Métodos Estudo epidemiológico transversal, realizado com 276 universitários matriculados em quatro cursos da área da saúde. Para a obtenção dos dados, utilizaram-se três instrumentos autoaplicáveis: o Eating Attitudes Test (EAT-26), o Bulimic Investigatory Test of Edinburgh (BITE) e, para investigar o consumo de formulações emagrecedoras, um questionário elaborado pela própria equipe de pesquisa. Para análise dos dados, aplicou-se o teste qui-quadrado, adotando-se o nível de significância de 5%. Resultados Vinte e um universitários apresentaram risco de TA pela escala EAT-26, correspondente a 7,6% dos pesquisados. A frequência do uso de formulações emagrecedoras foi de 7,2%. Houve associação significativa (p < 0,001) entre o uso de formulações emagrecedoras e a presença de risco para TA (33,3%), com percentual muito elevado quando comparado ao percentual de entrevistados sem risco de TA que estavam em uso de medicamentos (5,1%). Conclusões O consumo de formulações emagrecedoras esteve associado tanto à presença de risco para TA, nas escalas EAT-26 e BITE, quanto aos níveis socioeconômicos, principalmente para a classe de renda C.
Hikikomori: revisão sobre um grave fenômeno de isolamento social
Authors: Domingues-Castro Mariana S. , Torres Albina R.
Published: December 2018

RESUMO Objetivos Expandir os conhecimentos sobre o fenômeno de isolamento social prolongado, voluntário e grave denominado hikikomori e facilitar a identificação e o acompanhamento terapêutico desses indivíduos. Métodos Foi realizada uma revisão da literatura de 2000 a 2017, sendo utilizadas várias bases de dados como instrumentos de busca usando as palavras-chave: “hikikomori”, “youth social withdrawal” e “isolamento social prolongado”. Resultados O hikikomori foi descrito inicialmente no Japão, sendo considerado uma síndrome ligada à cultura nipônica. Porém, nos últimos anos foi descrito em diversos países, inclusive no ocidente. Afeta principalmente adolescentes e adultos jovens do sexo masculino, os quais vivem espontaneamente reclusos em seus quartos por pelo menos seis meses. São pessoas solitárias, tímidas, com um suporte social deficiente e que, frequentemente, tiveram alguma experiência traumática na infância. A maioria dos indivíduos apresenta algum transtorno psiquiátrico associado. O fenômeno acarreta terríveis prejuízos para o indivíduo, familiares e para a sociedade como um todo. Conclusão O hikikomori é subdiagnosticado e subtratado fora do Japão, pelo desconhecimento dos profissionais da saúde e pela recusa dos portadores em buscar ajuda. O fenômeno ainda não foi incluído numa categoria de diagnóstico psiquiátrico, o que dificulta a padronização e a realização de pesquisas ao redor do mundo.
Mortalidade por suicídio de adolescentes no Brasil: tendência temporal de crescimento entre 2000 e 2015
Authors: Cicogna Júlia Isabel Richter , Hillesheim Danúbia , Hallal Ana Luiza de Lima Curi
Published: December 2018

RESUMO Objetivos: Analisar a tendência temporal de mortalidade por suicídio entre adolescentes no Brasil de 2000 a 2015. Métodos: Os dados foram coletados do Sistema de Informações sobre Mortalidade (SIM) e do Instituto Brasileiro de Geografia e Estatística (IBGE). As variáveis do estudo foram sexo, ano e causa básica de morte. O estudo incluiu mortes por Lesões Autoprovocadas Intencionalmente, X60-X84 – de acordo com a 10ᵃ Revisão da Classificação Internacional de Doenças (CID-10), de adolescentes de 10 a 19 anos. A técnica estatística utilizada foi a de regressão linear simples, e os resultados foram considerados estatisticamente significativos quando p ≤ 5%. Resultados: Entre 2000 e 2015, foram observados 11.947 óbitos por suicídio em adolescentes no Brasil, e 67% deles foram no sexo masculino, o que corresponde a uma relação de 2,06:1 entre o sexo. Houve crescimento estatisticamente significativo da mortalidade por suicídio de adolescentes no Brasil (p = 0,016), a qual passou de 1,71 por 100.000 habitantes em 2000 para 2,51 em 2015, um crescimento de 47%. Essa expansão ocorreu em função do incremento nos suicídios de adolescentes do sexo masculino (p = 0,001), especificamente no norte (p < 0,001) e nordeste (p < 0,001) do Brasil. Em relação ao sexo feminino, houve tendência de diminuição da mortalidade por suicídio na região Centro-Oeste (p = 0,039), mas, quando se trata do Brasil como um todo, houve oscilação da mortalidade por suicídio. Conclusões: Houve crescimento significativo da mortalidade por suicídio entre os adolescentes no Brasil, particularmente na população masculina.
Magnetic resonance imaging-guided vacuum-assisted breast biopsy: experience and preliminary results of 205 procedures
Authors: Carneiro Gracy de Almeida Coutinho , Pereira Fernanda Philadelpho Arantes , Lopes Flávia Paiva Proença Lobo , Calas Maria Julia Gregorio
Published: December 2018

Abstract Objective: To demonstrate the frequency of malignancy and histological characteristics of lesions in patients submitted to vacuum-assisted breast biopsy guided by magnetic resonance imaging (MRI). Materials and Methods: This was a retrospective study of MRI-guided vacuum-assisted breast biopsies performed between April 2008 and December 2016, in which we analyzed clinical and epidemiological data, as well as the BI-RADS classification and histopathological results. We compared nodules and non-nodular enhancements, in terms of their correlation with malignancy, using chi-square test. Results: Among 215 cases referred for MRI-guided vacuum-assisted breast biopsy, the procedure was contraindicated in 10 cases (5%) and was technically feasible in the remaining 205 (95%). Non-nodular enhancements were observed in 135 cases (66%), and nodules were observed in 70 (34%), with a mean diameter of 2.2 cm (range, 0.5-9.6 cm) and 0.97 cm (range, 0.5-2.2 cm), respectively. Of the 205 lesions analyzed, 43 (21%) were malignant, 129 (63%) were benign, and 33 (16%) were classified as high-risk lesions. The most common histological findings were invasive ductal carcinoma and, in high-risk cases, lobular neoplasia. There was no significant difference between nodules and non-nodular enhancements in terms of the rate of malignancy (p = 0.725). Conclusion: In our sample, the overall malignancy rate was 21%. However, to improve the assessment of these results, it is necessary to correlate them with the surgical data and with data from the follow-up of benign cases.
Deficiências de micronutrientes após cirurgia bariátrica: análise comparativa entre gastrectomia vertical e derivação gástrica em Y de Roux.
Authors: Ferraz Álvaro Antonio Bandeira , Carvalho Márcio R. C. , Siqueira Luciana T. , Santa-Cruz Fernando , Campos Josemberg Marins
Published: December 2018

RESUMO Objetivo: comparar a prevalência das deficiências de micronutrientes nos pacientes submetidos à gastrectomia vertical (GV) e à derivação gástrica em Y de Roux (DGYR). Métodos: estudo comparativo de 576 pacientes submetidos à cirurgia bariátrica, 338 através de GV e 238 de DGYR e avaliados quanto às dosagens séricas de hemoglobina, ferro, ferritina, zinco e vitamina B12. Estas dosagens foram realizadas nos períodos pré-operatório e três, seis, 12 e 24 meses após a cirurgia, para análise e comparação das deficiências de micronutrientes entre as técnicas. Resultados: o grupo submetido à GV foi composto por 48 homens e 290 mulheres, com IMC médio de 39,4±2,6Kg/m2 e média de idade de 37,2±11 anos; o grupo submetido à DGYR foi composto por 77 homens e 161 mulheres, com IMC médio de 42,7±5,9Kg/m2 e média de idade de 41,9±11,1 anos. Após 24 meses, déficit de hemoglobina se fez presente em 24,4% dos pacientes submetidos à GV e 40% da DGYR (p=0,054); deficiência de ferro em 6,6% da GV e 15% da DGYR (p=0,127); déficit de ferritina em 17,8% da GV e 23,7% da DGYR (p=0,399); deficiência de zinco em 6,6% da GV e 30% da DGYR (p=0,002) e deficiência de B12 em 6,6% da GV e 8,7% da DGYR (p=0,844). Conclusão: pacientes submetidos à GV apresentaram níveis séricos de ferro e zinco superiores aos pacientes submetidos à DGYR, e a prevalência de déficit deste último micronutriente foi significativamente maior no grupo da DGYR.
Aderências em telas de polipropileno versus telas Sepramesh®: estudo experimental em ratos.
Authors: Biondo-Simões Maria de Lourdes Pessole , Pessini Victor Cezar de Azevedo , Porto Pedro Henrique Caldeira , Robes Rogério Ribeiro
Published: December 2018

RESUMO Objetivo: comparar a formação de aderências intraperitoneais, induzidas em ratos, quando utilizadas as telas de polipropileno e Sepramesh®. Métodos: foram utilizados 20 ratos Wistar, machos, agrupados randomicamente em dois grupos de dez animais cada. Duas telas de dimensão 10x20mm foram dispostas intraperitonealmente em cada animal, uma de polipropileno (PP) e a outra Sepramesh®. No Grupo 1, a tela de polipropileno foi posicionada à direita e a tela Sepramesh® à esquerda. No Grupo 2, a disposição das telas foi invertida. Após 14 dias do procedimento, os animais foram eutanasiados e a incorporação e a porcentagem de aderências, em cada tela, analisadas macroscopicamente. Os dados coletados foram submetidos à análise estatística com nível de significância adotado de p<0,05. Resultados: todas as telas apresentaram aderências. Nas telas Sepramesh®, a porcentagem de superfície coberta por aderências variou entre 2% e 86%, com média de 18,6±18,6%, enquanto que, nas telas de polipropileno, variou entre 6% e 86%, com média de 57,4%±34,9% (p<0,05). Os sítios preferenciais de formação de aderências, em ambas as telas, foram as bordas. Conclusão: embora nenhuma tela tenha sido capaz de inibir completamente o desenvolvimento de aderências, a tela Sepramesh® apresentou menos aderências em relação à tela de polipropileno. A preferência da formação de aderências nas bordas das próteses evidencia a importância da fixação adequada das telas.
Poor Man's Crop? Slavery in Brazilian Cotton Regions (1800-1850)
Authors: Pereira Thales Augusto Zamberlan
Published: December 2018

Abstract Much of the literature about cotton production in Brazil during the nineteenth century considers cotton as a "poor man's crop" - cultivated by small farmers who did not employ a large slave labor force. However, information provided in population maps from the period between 1800 and 1840 shows that slaves represented half the population in Maranhão, the most important cotton exporter in Brazil until the 1840s. This represented a higher share than in any region in northeast Brazil and was comparable to the slave population shares recorded in the United States' cotton South. This paper shows that, during the cotton boom years (1790-1820), not only was the cotton exported from northeast Brazil to Britain and continental Europe cultivated on large plantations, but also, slave prices were higher in Maranhão than in other Brazilian provinces.
Forecasting USD-BRL Currency Rate Volatility using Realized and Implied Volatilities Data
Authors: Campani Carlos Heitor , Durães Assis Gustavo da Silva
Published: December 2018

Abstract This article assesses the impact of exogenous variables in GARCH models, when applied to volatility forecasts for the Brazilian USD-BRL currency market. As exogenous variables, we used the realized variance, based on high frequency data, and the FXVol index, based on market implied volatility data. This is the first study to use the FXVol index and to investigate its effects on Brazilian foreign exchange volatility. The results indicate statistical significance of the superiority of the extended models when predicting volatility. We conclude that high frequency data and market implied volatility contain relevant information with respect to USD-BRL currency volatility. These find ings are relevant for hedgers, speculators and practitioners in general.
Análise dos indicadores de intensidade de P&D: entendendo os efeitos da estrutura industrial e dos gastos setoriais
Authors: Brigante Paulo César
Published: December 2018

Resumo: Este artigo procura analisar os determinantes de gastos empresariais em P&D por meio de um indicador de intensidade de P&D definido pela relação entre gastos em P&D e valor adicionado da indústria. Com a decomposição de seus determinantes, o objetivo deste artigo é identificar em que medida a distância do Brasil em termos de esforços tecnológicos, medidos por tal indicador, em relação à média de um conjunto de países selecionados, pode ser atribuída aos efeitos da estrutura industrial predominante e aos gastos em P&D efetuados pelos diferentes grupos tecnológicos que compõem esta indústria.