bluuebunny/crossref_metadata_2025 huggingface dataset:
Definição de framework para a padronização de processos em um periódico científico com base em revisão da literatura e nos objetivos de desempenho
Authors: Garcia José Augusto Campos , Oliveira Marina Buranelli de , Rodrigues José de Souza , Albino João Pedro
Published: December 2014

Este trabalho apresenta o resultado de uma pesquisa cujo objetivo foi estabelecer um framework para padronização de processos em um periódico científico. Ele tem uma equipe que executa rotinas operacionais reguladas por normas (externas) e padrões (internos e externos). A rotatividade elevada de membros da equipe de apoio (bolsistas) gerava perda de informação e aumentava a variabilidade da qualidade do serviço prestado. A pesquisa partiu do pressuposto de que a padronização (que inclui a formalização) dos processos poderia ser uma forma de reduzir este efeito secundário. Técnicas para padronização foram identificadas a partir de revisão da literatura nas principais bases de dados de periódicos e congressos nacionais e internacionais. As técnicas identificadas foram analisadas considerando-se o número de vezes em que apareceram nos artigos analisados e os objetivos de desempenho propostos por Slack et al. (2009). Como resultado obteve-se um framework para padronização de processos adaptado às necessidades do periódico estudado e viável de ser utilizado de forma mais ampla, dada a sua similaridade estrutural com o modelo proposto por Campos (2004), uma referência brasileira na área. Palavras-chave: Padronização de Processos. Periódico Científico. Equipe Editorial. Revisão da Literatura. Objetivos de Desempenho.
Análise da logística hospitalar e dos custos do Setor de Engenharia Clínica em um Hospital filantrópico
Authors: De Souza Antônio Artur , Braga André Sousa , Bragança Ciro Gustavo , De Carvalho Francisco Soares Luiz Augusto , Avelar Ewerton Alex
Published: December 2014

Os hospitais são considerados organizações complexas principalmente pelo alto custo da estrutura assistencial empregada para atendimento. A redução de custos operacionais é um desafio para os gestores hospitalares. Particularmente no setor de engenharia clínica, uma logística hospitalar adequada pode vir a reduzir custos. Neste contexto, o objetivo da pesquisa foi analisar as atividades da logística hospitalar do setor de Engenharia Clínica de um hospital filantrópico, com foco na redução de custos. O trabalho apresenta estudo de caso em um grande hospital filantrópico situado na região metropolitana de Belo Horizonte, MG. A análise enfoca as atividades da logística hospitalar no setor de engenharia clínica desse hospital. Verificou-se que os trabalhos do referido setor estão concentrados na realização e concretização da manutenção dos equipamentos, em detrimento de esforços para a redução dos custos e aumento da segurança em todos os fluxos geridos pelo setor. Verificou-se ainda que existem riscos de aumento de custos com rotinas inadequadas de: (i) aquisição de novos equipamentos de grande porte; (ii) programação de manutenção e liberação para uso; e (iii) furtos de equipamentos.Palavras-chave: Logística hospitalar. Custos. Engenharia clínica. Hospital filantrópico.
Simulação e lean thinking como ferramentas para gestão de processos: uma avaliação de diferentes alternativas ao aumento da capacidade em uma empresa de cabos elétricos de alumínio
Authors: De Souza Tiago Augusto Amarante , De Carvalho Edra Resende , Melo André Cristiano da Silva , Nunes Denilson Ricardo de Lucena
Published: December 2014

Neste trabalho, a cadeia produtiva de uma empresa manufatureira de condutores elétricos de alumínio é analisada com o propósito de selecionar a melhor estratégia de aumento de sua capacidade produtiva. A empresa apresenta grande complexidade e variabilidade em seus fluxos de produção e, para tratar esse problema, foi proposta uma metodologia de construção de uma modelo de simulação que representasse esse sistema. Nesse modelo, foram consideradas duas estratégias distintas para avaliar o aumento de capacidade produtiva, a partir da configuração de dois cenários: um considerando melhorias contínuas obtidas por meio do Lean Thinking ou Produção Enxuta; e outro considerando investimentos em aquisição de maquinário. Os resultados encontrados pelo estudo apontam que a melhor estratégia de aumento da capacidade produtiva foi obtida com a utilização da filosofia da produção enxuta em seus processos críticos, visto que os ganhos em capacidade foram maiores que os observados na outra estratégia e os custos de implantação menores.Palavras-chave: Gestão de processos. Produção Enxuta. Modelagem e Simulação.
Avaliação de modelo de distribuição para uma nova empresa de produção de cerveja
Authors: Pereira Gustavo Menoncin , Silva Juliana Barbara , Cruz Fernandes Pollyana Francynne , Hirano Victor Nikaido , Boreggio do Valle Pont Gabriel Sebastian
Published: December 2014

O mercado de cerveja no Brasil é dominado em 70% por um só grupo empresarial, a AmBev, grupo formado nos anos 1990 pela fusão das duas maiores empresas do segmento na época, a Brahma e a Antarctica. Mesmo com novos entrantes no mercado a AmBev continuou crescendo e aumentando sua participação e seu lucro. Um dos maiores desafios para atuar no mercado de cerveja é a estratégia de distribuição. O sucesso da AmBev tem na sua estratégia de distribuição um dos fatores críticos para que se chegasse a esta participação no mercado. O modelo que a AmBev implementou e que continua investindo é o que a Brahma, pré AmBev, adotou como estratégia nos anos 1990. Este trabalho se baseia nas teorias e conceitos a respeito de modelos de distribuição na cadeia de suprimentos. O objetivo é verificar como uma empresa iniciando suas atividades produtivas no mesmo ramo que a AmBev, poderia implementar o mesmo modelo de distribuição. Para tanto foram identificadas as possíveis estratégias de distribuição, procurando entender os conceitos que fundamentam o modelo de referência AmBev. Com isto, uma empresa foi identificada e um estudo de caso conduzido para entender a aplicação do modelo da AmBev. As principais conclusões do estudo apontam para possibilidades de adoção do modelo com sucesso, mas com restrições e monitoramento constante para o controle da implantação da estratégia.Palavras-chave: Modelos de Distribuição. Cadeias de Suprimentos. AmBev.
Método de análise da maturidade do processo de armazenagem em centros de distribuição de supermercados em Fortaleza-CE: um estudo multicasos
Authors: Severino de Jesus Piter Anderson , Torres José Belo
Published: December 2014

A Logística e seus processos, especialmente o de armazenagem, apresentam-se como uma das formas que a empresa possui para reduzir custos e agregar valor aos stakeholders. Este artigo tem como objetivo desenvolver um método de análise da maturidade para avaliar o processo de armazenagem dos Centros de Distribuição (CD) em Fortaleza/CE. Entende-se por maturidade o quanto o CD está evoluído em determinada área ou processo. Através desta análise, o Centro de Distribuição pode potencializar os pontos fortes e solucionar ou amenizar os pontos fracos. Para tal, foram estabelecidos atributos, dimensões e práticas para as infraestruturas de organização, pessoas e tecnologia, bem como para suas interfaces internas e externas. Também foi elaborado o instrumento para diagnóstico dos CDs. Para a elaboração do método, foram realizadas pesquisas bibliográficas e validação com profissionais de Logística. O instrumento foi aplicado em Centros de Distribuição de supermercados e foi observado a heterogeneidade da maturidade dos CDs de Fortaleza.Palavras-chave: Logística. Armazenagem. Supermercados. Centro de Distribuição. Método de Avaliação de Maturidade.
Damage mechanisms in cementitious coatings on steel members in bending
Authors: Chen Suwen , Jiang Liming , Usmani Asif , Li Guo-Qiang
Published: December 2014

Cementitious coatings are widely used as fire protection for steel structures but they are vulnerable to damage from structural deformations. In this paper, damage mechanisms in cementitious coatings on steel members in bending are investigated. A series of monotonically loaded beam tests are conducted to observe the occurrence of cracks and their propagation leading to final failure. The experiments are then simulated using a cohesive zone finite-element scheme, capable of modelling interfacial damage between the coating and steel substrate as well as internal coating damage. The results of the experimental and numerical studies clearly reveal the distinct damage mechanisms of cementitious coatings on both tension and compression sides of structural steel members in bending. Findings from this study provide the foundation for developing practical methods to determine the condition of cementitious coatings on steel structures after a short-duration extreme loading event (earthquake, blast, windstorms), where there is minimal external damage to the building fabric or long-duration cumulative damage from moderate levels of repeated non-monotonic loading. It is very unlikely in either of these cases that the integrity of cementitious fire protective coatings has been investigated in current practice.
Somatic Expression of Psychological Problems (Somatization): Examination with Structural Equation Model
Authors: Çolak Tuğba Seda
Published: December 2014

The main purpose of the research is to define which psychological symptoms (somatization, depression, obsessive-compulsive, hostility, interpersonal sensitivity, anxiety, phobic anxiety, paranoid ideation and psychoticism) cause somatic reactions at most. Total effect of thesepsychologicalsymptoms on somatic symptoms had beeninvestigated. Study was carried out with structural equation model to research the relation between the psychological symptoms and somatization. The main material of the research is formed by the data obtained from 492 people. SCL-90-R scale was used in order to obtain the data. As a result of the structural equation analysis, it has been found that

1) Psychoticism, phobic anxiety, and paranoid ideation do not predict somatic symptoms.

2) There is a negative relation between interpersonal sensitivity level and somatic reactions.

3) Anxietysymptoms had been found as causative to occurthe highest level of somatic reactions.
Reproductive consequences of the timing of seasonal movements in a nonmigratory wild bird population
Authors: Matechou Eleni , Cheng San Chye , Kidd Lindall R. , Garroway Colin J.
Published: December 2014

Animal movement patterns, whether related to dispersal, migration, or ranging behaviors, vary in time. Individual movements reflect the outcomes of interactions between an individual's condition and a multitude of underlying ecological processes. Theory predicts that when competition for breeding territories is high, individuals should arrive at breeding sites earlier than what would otherwise be optimal for breeding in the absence of competition. This is because priority at a site can confer significant competitive advantages leading to better breeding outcomes. Empirical data from long‐distance migrants support this theory. However, it has not been tested within the context of fine‐scale movements in nonmigratory populations. We assessed the effect of arrival time at a breeding site on reproductive outcomes in an intensively monitored resident population of Great Tits (Parus major). The population was monitored passively, via passive integrated transponder (PIT) tag loggers, and actively, via catching, during breeding and nonbreeding seasons. We developed new capture–recapture–resight models that use both data types to model breeding outcome conditional on the unknown individual arrival times. In accordance with theory, individuals arrived at the woods synchronously in waves that were large at the beginning of the nonbreeding season and small toward the end, with very few arrivals in the intervening period. There was a strong effect of arrival time on the probability of breeding; the earlier an individual arrived, the more likely it was to successfully establish a nest that reached the incubation period. However, once nests were established, they had equal probabilities of failing early, regardless of arrival time. Finally, there was moderate evidence of a negative effect of arrival time on the probability of successfully fledging nestlings. These empirical findings are consistent with theoretical models that suggest an important role for competition in shaping fine‐scale seasonal movements. Our capture–recapture–resight models are extensible and suitable for a variety of applications, particularly when the goal is to estimate the effects of unobservable arrival times on subsequent ecological outcomes.
Associations between fecal indicator bacteria prevalence and demographic data in private water supplies in Virginia
Authors: Smith Tamara , Krometis Leigh-Anne H. , Hagedorn Charles , Lawrence Annie H. , Benham Brian , Ling Erin , Ziegler Peter , Marmagas Susan West
Published: December 2014

Over 1.7 million Virginians rely on private water sources to provide household water. The heaviest reliance on these systems occurs in rural areas, which are often underserved with respect to available financial resources and access to environmental health education. This study aimed to identify potential associations between concentrations of fecal indicator bacteria (FIB) (coliforms, Escherichia coli) in over 800 samples collected at the point-of-use from homes with private water supply systems and homeowner-provided demographic data (household income and education). Of the 828 samples tested, 349 (42%) of samples tested positive for total coliform and 55 (6.6%) tested positive for E. coli. Source tracking efforts targeting optical brightener concentrations via fluorometry and the presence of a human-specific Bacteroides marker via quantitative real-time polymerase chain reaction (qPCR) suggest possible contamination from human septage in over 20 samples. Statistical methods implied that household income has an association with the proportion of samples positive for total coliform, though the relationship between education level and FIB is less clear. Further exploration of links between demographic data and private water quality will be helpful in building effective strategies to improve rural drinking water quality.
Application of denaturing gradient gel electrophoresis (DGGE) for assessing fecal pollution sources at a recreational beach
Authors: Esseili M. A. , Kassem I. I. , Lis J. , Sigler V.
Published: December 2014

We investigated the effectiveness of Escherichia coli community fingerprinting for identifying fecal pollution sources impacting a recreational beach. E. coli in water collected from the beach, nearby creek and storm sewer outfall were enumerated using membrane filtration, while E. coli communities were characterized following polymerase chain reaction analysis and denaturing gradient gel electrophoresis (DGGE) fingerprinting. Analysis of E. coli densities to determine the contributions of the creek and storm sewer during dry weather was inconclusive. However, DGGE fingerprinting indicated that the creek E. coli communities had a greater impact on the beach community composition (80–95% similarity), than on storm sewer communities (41–64%). Following rainfall events, E. coli communities in the creek were at least 93% similar to those at the beach, while the similarity of the outfall and beach communities varied from 72 to 96%. Furthermore, E. coli communities at the beach were more similar to creek communities than to storm sewer communities after the first 2 h and 48 h following the onset of rainfall, and of comparable similarity following 24 h of rainfall, suggesting transient contributions from the storm sewer. DGGE analysis of E. coli communities provided evidence that the creek was a consistent source of E. coli to the beach, while the storm sewer was a transient source.
Infection control by point-of-use water filtration in an intensive care unit – a Hungarian case study
Authors: Barna Zsófia , Antmann Katalin , Pászti Judit , Bánfi Renáta , Kádár Mihály , Szax Anita , Németh Melinda , Szegő Eszter , Vargha Márta
Published: December 2014

Hospital tap water is a potential source of pathogenic bacteria associated with nosocomial infections. Infection control should include preventive measures to reduce the risk of waterborne infection. The efficiency of point-of-use water filters in infection control was assessed in the intensive care unit of a Hungarian hospital with long history of nosocomial Pseudomonas aeruginosa cases. All taps in the unit were fitted with disposable point-of-use filters. The incidence of nosocomial P. aeruginosa infections decreased from 2.71 to 0 cases/100 patient days when the filters were in place. Legionnaires' disease was not observed either during or outside the study period. Before the application of the filters, both P. aeruginosa and Legionella sp. were shown to colonize five of the seven taps. Filtration eliminated both bacteria completely, though secondary contamination was observed. Total genome restriction profiling of environmental and clinical P. aeruginosa isolates have shown the ubiquitous presence of a single genotype. The same genotype was detected in five of the seven previous nosocomial cases, which supports the assumption of water-derived infection. The results demonstrate that point-of-use filters are effective and cost-efficient measures in reducing health-care associated infections.
A novel point-of-use water treatment method by antimicrobial nanosilver textile material
Authors: Liu Hongjun , Tang Xiaosheng , Liu Qishan
Published: December 2014

Pathogenic bacteria are one of the main reasons for worldwide water-borne disease causing a big threat to public health, hence there is an urgent need to develop cost-effective water treatment technologies. Nano-materials in point-of-use systems have recently attracted considerable research and commercial interests as they can overcome the drawbacks of traditional water treatment techniques. We have developed a new point-of-use water disinfection kit with nanosilver textile material. The silver nanoparticles were in-situ generated and immobilized onto cotton textile, followed by fixing to a plastic tube to make a water disinfection kit. By soaking and stirring the kit in water, pathogenic bacteria have been killed within minutes. The silver leaching from the kit was insignificant, with values <100 ppb – the current US EPA and WHO limit for silver level in drinking water. Herein, the nanosilver textile water disinfection kit could be a new, efficient and cost-effective point-of-use water treatment method for rural areas and emergency preparedness.
Analysis of membrane fouling by proteins during nanofiltration of chitin alkali wastewater
Authors: Li Juan , Zhao Liming , Wang Yaosong , Chen Chaoqin , Zhou Jiachun , Qiu Yongjun , Du Hailong
Published: December 2014

The membrane fouling mechanism used during the nanofiltration (NF) of chitin alkali effluent was investigated. Tests were carried out in three large-scale chitin-processing plants with three kinds of wastewater. An alkali resistant NF membrane with molecular weight cut-off of 250 Da was employed. The reflection coefficient (σ) and diffusion coefficient (Ps) of total proteins were deduced, assuming that the proteins were single entities in the feed. Viscosity and osmosis pressure were measured to evaluate their influences on the permeate flux. Furthermore, the fraction of the protein fouling was extracted and qualitatively analyzed by mass spectrometry. Results showed that the NF permeate flux of alkali wastewater with the highest protein concentration (4.00%) was the lowest, and that σ and penetration Ps decreased with protein content growth. Over 60% of the peptides in the permeate were hydrophobic, whereas 70% of the peptides in the adsorption cake were hydrophilic. Irreversible resistance was the predominant resistance during NF processing, and the fouling behaviour of hydrophilic fractions was dominant.
Impact of Picky Eating on Level of Family Stress in Healthy Children between the Ages of 3 and 6 Years
Authors: Ramos-Paúl Rocío , J. Marriage Barbara , Ruiz Debeza Roberto , Oliveros Leal Liliana , Ros Mar Luis , Torres Cardona Luis , A. Williams Jennifer
Published: December 2014

Objective.

One of the goals of this study was to measure the impact of a child’s eating habits on a family’s level of stress related to meal times in the home.

Methods.

A cross-sectional survey study was conducted on 1,090 children between the ages of three and six years, in Madrid, Spain from 2010 to 2011. Questionnaires about the child’s eating habits, family stress, and medical history, along with a three-day food record were filled out by parents.

Results.

Levels of family stress related to meal time occasions were statistically higher in the picky eater (PE) group compared to the healthy eater (HE) group (p=0.007).

Conclusion.

This study demonstrates a possible relationship between picky eating behaviors and family stress in the home. Higher levels of family stress can have long-term negative behavioral consequences or changes on the family dynamic, which may further exacerbate feeding disorders.
Teachers’ Workload: Evidence and Ambiguity on Professional Identity
Authors: F. Coelho Miguel , M. Gomes Rui
Published: December 2014

Understanding changes in the teaching profession as means of State control implies the hypothesis of teachers’
identity reconfiguration. The use of time may be viewed as a powerful tool in rebuilding teachers’ identity as well as an
important element in the process of developing professional identity. This study aims at describing and analyzing
secondary level teachers’ actual workload, and it relies on the empirical data available concerning different national
contexts, and on a description of the teachers’ work composition. This description was obtained through enquiries about
the daily work of teachers from different subjects. The methodology used focused on multiple case studies, and the
inquiries were conducted in two Portuguese secondary schools. The main results of these inquiries show the teachers’
overwork, and a significant dispersion through several types of tasks. Another important result shows that the available
institutional data needs to be read along with the empirical studies conducted, for the latter reveal that teaching can no
longer be considered a soft profession, particularly due to the workload and the need to develop very different but
simultaneous skills. The increased control of the State over schools and teachers, and the increment of a wider set of tasks
regarding school bureaucracy, organization and projects represent a significant percentage of the teachers’ work time.
YouTube Sustainability Reporting: Empirical Evidence from Eurozone-Listed Companies
Authors: Bonsón Enrique , Bednárová Michaela
Published: December 2014

CSR reporting is gaining momentum among Eurozone companies. The objective of this paper is to provide evidence regarding companies using YouTube as a communication and engagement channel for sustainability issues. Legitimacy theory and stakeholder theory are applied as a theoretical background for this study. Data on 306 Eurozone companies listed on the STOXX Euro 600 Index were collected to describe these practices and to identify whether sustainability reporting on YouTube follows the same patterns as CSR reporting in general. The main findings indicate that, in spite of its potential, sustainability reporting using YouTube is still in an early stage. The independent measures examined in this study only influence the extent of environmental reporting via YouTube; they do not affect other sustainability disclosures. Specifically, the factors influencing environmental YouTube disclosure are the sector in which the company operates, the proportion of independent directors, and company size.
Analysis and Design of the Almonte Bridge
Authors: Jose Arenas Juan , Capellán Guillermo , Beade Hector , Merino Emilio , Martínez Javier , Guil Ysabel , García Pascual
Published: December 2014

The high speed line Madrid-Extremadura crosses Almonte River through Alcántara reservoir with a viaduct, a great arch of high performance concrete. The main span of this structure is 384 meters. This span will turn the bridge in 2015, when it is scheduled to be completed, into the first arch bridge for High speed railway in the world. This paper explains the exceptional techniques outside the usual engineer work to reach its design and construction.
Buckling Strength of Curved Bridge Girder Web Panels, including Residual Stress
Authors: Van Bogaert Philippe
Published: December 2014

A numerical research is conducted about the effect of curvature of web plates of closed section bridge girders. An identical beam has been considered, its web plates taking increasing curvature. The introduction of residual stress into the models has been carried out through the use of internal force fields and corresponds well to the ECCS-predictions. However, deformations, due to the residual stresses have a different character for flat and curved web plates. The effects on the failure load caused by residual stress and by imperfections, both with nonlinear material and geometric analysis are calculated independently. These factors do not seem to have an overwhelming importance. However, if both factors are considered simultaneously, all values of the critical load are seriously lower than for any other type of analysis. Curved webs show a larger shear failure load than equivalent box sections with flat webs and it is a safe but conservative principle to identify the curved web to its flat equivalent of identical thickness
Field Monitoring and Parameter Identification of Moisture Distribution for Mega Steel Reinforced Concrete Columns
Authors: Zhao Xin , Yan Congzhi
Published: December 2014

Mega steel reinforced concrete columns with complex embedded steels become widely applied in the structural system of contemporary super-tall buildings. The moisture distribution of concrete has significant influence on the deformation performance of mega steel reinforced concrete columns. However, the effects of the differential moisture distribution on the deformation performance of mega steel reinforced concrete columns are actually not considered in current design practice of mega SRC columns. The moisture distribution of concrete has been analyzed using numerical simulation in the author’s previous studies. In order to verify the numerical analysis results, a moisture distribution monitoring program of Shanghai Tower columns was applied to obtain the actual moisture distribution of mega SRC columns. The monitoring data and simulation data have been compared in this paper and the moisture diffusion coefficients were further calibrated by parameter identification procedure. The comparing results indicate that, the moisture simulation data obtained using the identified moisture diffusion coefficient are much closer to the recorded date and can be applied for further study on the moisture distribution.
Nature pour tous
Authors: Godi François
Published: December 2014

Nature for all

The Franco-Swiss Interreg project “Nature for all” (2010–2013) arose from the realisation that few natural spaces are accessible to people with reduced mobility. Through various studies, exchanges of experience and actions, it has helped to fill this gap by providing concrete answers to questions linked to accessibility of natural spaces to people with limited mobility. Supported by communes in both France and Switzerland, the project has had an impact on the communes' perceptions of the various handicaps and how to address them in the framework of the management of natural spaces. The results of the experience under the project since 2010 have been brought together in the guide “Nature for all – recommendations for accessibility”.
Kikuchi-Fujimoto Disease: A Diagnostic Dilema
Authors: Begum SMK Nahar , Siddiqui MMR , Arif AS , Kahhar MA
Published: December 2014

Fujimoto (KD) disease or histiocytic necrotizing lymphadenitis is a rare, benign, self limiting cervical lymphadenitis of unknown etiology. Since Tubercular lymphadenopathy is the commonest cause for chronic cervical lymphadenopathy in developing and tropical country like Bangladesh. Occasionally it is misdiagnosed as TB and subsequently shows unresponsiveness to ATT. As a result the morbidity increases and cost of antitubercular treatment (ATT) in wrong diagnosed case is enormous. We report a similar case of misdiagnosis. We report a 26 year old lady who reported with history of right sided neck pain and fever since last 2 months. Clinical examination revealed enlared right sided lymph nodes in the neck. Fine needle aspiration cytology revealed features suggestive of granulomatous lymphadenitis. The case was suspected to be tuberculosis and anti-tubercular therapy (ATT) was started immediately. Since the patient did not respond, lymph node biopsy was done and the histological features suggested the diagnosis of Kikuchi's disease. She did well after recommended treatment. DOI: http://dx.doi.org/10.3329/akmmcj.v5i2.21134 Anwer Khan Modern Medical College Journal Vol. 5, No. 2: July 2014, Pages 51-53
Subcutaneous Fat Necrosis of Newborn (SCFN) Associated with Head Cooling in an Asphyxiated Newborn-A case report
Authors: Rahman AFMM , Ameri AA , Shehri HSA , Mridha MAA
Published: December 2014

Abstract not available DOI: http://dx.doi.org/10.3329/bjch.v38i2.21146 Bangladesh J Child Health 2014; VOL 38 (2) : 101-103
Abstract and Current Literature
Authors: Rahman Md Habibur
Published: December 2014

Abstract not available DOI: http://dx.doi.org/10.3329/bjch.v38i2.21149 Bangladesh J Child Health 2014; VOL 38 (2) : 117-118
Former Land Use and Host Genotype Influence the Mycorrhizal Colonization of Poplar Roots
Authors: Gherghel Felicia , Behringer David , Haubrich Stefanie , Schlauß Maren , Fey-Wagner Christina , Rexer Karl-Heinz , Janßen Alwin , Kost Gerhard
Published: December 2014

The present paper analyses the community structure of ectomycorrhiza (ECM) and arbuscular mycorrhiza (AM) fungi associated with seven different poplar clone types growing in a patch system on soil from four different former land use types, originating from spruce forest, poplar stand, grassland and cornfield. We determined the extent to which ECM and AM play a role on the studied factors (genotype, former land use type and host growth). The diversity of ECM and AM fungal communities was estimated by morphological and molecular analyses of the 18S and ITS of the rDNA genes. Fifteen ECM fungal taxa and four AM groups were distinguished in the roots of the poplars grown for 18 months on soil originating from the respective land use types. The poplar clones showed significantly different rates of shoot length and AM colonization, especially concerning the occurrence of Glomus intraradices and Scutellospora sp. Populus deltoides had significantly higher Scutellospora sp. abundance. Although ECM abundance and diversity was high, no significant differences between the different land use types was found. However, some ECM fungi like Paxillus involutus, Laccaria proxima and Laccaria tortilis showed significant preferences for specific land use types. Our findings suggest that both factors, former land use type and poplar genotype, are important determinants of mycorrhizal colonization of the host plants.
Novel Single Nucleotide Polymorphisms of the Insulin-Like Growth Factor-I Gene and Their Associations with Growth Traits in Common Carp (Cyprinus carpio L.)
Authors: Feng Xiu , Yu Xiaomu , Tong Jingou
Published: December 2014

Insulin-like growth factor-I (IGF-I) plays an important role in the growth and development of vertebrates. To study polymorphisms of IGF-I, we screened a total of 4555 bp of genomic sequences in four exons and partial introns for the discovery of single nucleotide polymorphism (SNP) in common carp (Cyprinus carpio). Three SNPs (g.3759T>G, g.7627T>A and g.7722T>C) in intron 2 and a nonsynonymous SNP (g.7892C>T) in exon 3 were identified in a pilot population including random parents and their progenies. 289 progenies were further genotyped for studying possible associations between genotypes or combined genotypes and growth traits. The results showed that the locus g.7627T>A was significantly associated with body weight and body length, and fish with genotype AA had a mean body weight 5.9% higher than those with genotype TT. No significant associations were observed between genotypes of other loci and growth traits. However, when both g.7627T>A and g.7722T>C were considered, the combined genotype TT/TT was extremely associated with the lowest values of body length and body weight and the highest K value in comparison with other diplotypes (p < 0.01). These results suggest that genotype AA at g.7627T>A and its combined genotypes with alleles from another locus have positive effects on growth traits, which would be a candidate molecular marker for further studies in marker-assisted selection in common carp.
Structures of Some Novel α-Glucosyl Diterpene Glycosides from the Glycosylation of Steviol Glycosides
Authors: Prakash Indra , Chaturvedula Venkata
Published: December 2014

Four new minor diterpene glycosides with a rare α-glucosyl linkage were isolated from a cyclodextrin glycosyltransferase glucosylated stevia extract containing more than 98% steviol glycosides. The new compounds were identified as 13-[(2-O-β-D-glucopyranosyl-3-O-(4-O-α-D-glucopyranosyl)-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid-[(4-O-α-D-glucopyranosyl-β-D-glucopyranosyl) ester] (1), 13-[(2-O-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid-[(4-O-(4-O-(4-O-α-D-glucopyranosyl)-α-D-glucopyranosyl)-α-D-glucopyranosyl)-β-D-glucopyranosyl ester] (2), 13-[(2-O-β-D-glucopyranosyl-3-O-(4-O-(4-O-(4-O-α-D-glucopyranosyl)-α-D-glucopyranosyl)-α-D-glucopyranosyl)-β-D-glucopyranosyl-β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid β-D-glucopyranosyl ester (3), and 13-[(2-O-β-D-glucopyranosyl-3-O-(4-O-(4-O-(4-O-α-D-glucopyranosyl)-α-D-glucopyranosyl)-α-D-glucopyranosyl)-β-D-glucopyranosyl- β-D-glucopyranosyl)oxy] ent-kaur-16-en-19-oic acid-[(4-O-α-D-glucopyranosyl-β-D-glucopyranosyl) ester] (4) on the basis of extensive NMR and mass spectral (MS) data as well as hydrolysis studies.
Formulation, Characterization, and in Vivo Evaluation of Celecoxib-PVP Solid Dispersion Nanoparticles Using Supercritical Antisolvent Process
Authors: Ha Eun-Sol , Choo Gwang-Ho , Baek In-Hwan , Kim Min-Soo
Published: December 2014

The aim of this study was to develop celecoxib-polyvinylpyrrolidone (PVP) solid dispersion nanoparticles with and without surfactant using the supercritical antisolvent (SAS) process. The effect of different surfactants such as gelucire 44/14, poloxamer 188, poloxamer 407, Ryoto sugar ester L1695, and d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) on nanoparticle formation and dissolution as well as oral absorption of celecoxib-PVP K30 solid dispersion nanoparticles was investigated. Spherical celecoxib solid dispersion nanoparticles less than 300 nm in size were successfully developed using the SAS process. Analysis by differential scanning calorimetry and powder X-ray diffraction showed that celecoxib existed in the amorphous form within the solid dispersion nanoparticles fabricated using the SAS process. The celecoxib-PVP-TPGS solid dispersion nanoparticles significantly enhanced in vitro dissolution and oral absorption of celecoxib relative to that of the unprocessed form. The area under the concentration-time curve (AUC0→24 h) and peak plasma concentration (Cmax) increased 4.6 and 5.7 times, respectively, with the celecoxib-PVP-TPGS formulation. In addition, in vitro dissolution efficiency was well correlated with in vivo pharmacokinetic parameters. The present study demonstrated that formulation of celecoxib-PVP-TPGS solid dispersion nanoparticles using the SAS process is a highly effective strategy for enhancing the bioavailability of poorly water-soluble celecoxib.
Vitamin B12 in Obese Adolescents with Clinical Features of Insulin Resistance
Authors: Ho Mandy , Halim Jocelyn , Gow Megan , El-Haddad Nouhad , Marzulli Teresa , Baur Louise , Cowell Chris , Garnett Sarah
Published: December 2014

Emerging evidence indicates an association between obesity, metformin use and reduced vitamin B12 status, which can have serious hematologic, neurologic and psychiatric consequences. This study aimed to examine B12 status in obese adolescents with pre-diabetes and/or clinical features of insulin resistance. Serum B12 was measured using chemiluminescence immunoassay in 103 (43 male, 60 female) obese (mean body mass index (BMI) z-score ± SD (2.36 ± 0.29)), adolescents aged 10 to 17 years, median (range) insulin sensitivity index of 1.27 (0.27 to 3.38) and 13.6% had pre-diabetes. Low B12 (<148 pmol/L) was identified in eight (7.8%) and borderline status (148 to 221 pmol/L) in an additional 25 (24.3%) adolescents. Adolescents with borderline B12 concentrations had higher BMI z-scores compared to those with normal concentrations (2.50 ± 0.22 vs. 2.32 ± 0.30, p = 0.008) or those with low B12 concentration (2.50 ± 0.22 vs. 2.27 ± 0.226, p = 0.041). In conclusion, nearly a third of obese adolescents with clinical insulin resistance had a low or borderline serum B12 status. Therefore, further investigations are warranted to explore the cause and the impact of low B12 status in obese pediatric populations.
L'insertion des petites villes dans les réseaux nationaux et mondiaux de distribution. L'exemple du Centre-Est français (The inscription of small-sized cities in national and global distribution networks : the example of Centre-Est of France)
Authors: Chaze Milhan
Published: December 2014

The Second Commercial Revolution is characterized by the location of large distribution networks, for wide selling areas (super and hypermarkets, hard discounters or specialized supermarkets) or small consumer markets (networks of branches, franchising, voluntary chains). These networks, controlled by national or international firms, born in large cities, have spread towards lower- ranked towns. In small-sized cities, they modified traditional distribution systems. This paper aims to understand how these networks settled in small-sized cities and how they strengthened their retailing supply, while reinforcing the small urban centres dependence on metropolitan centres.
Différenciation territoriale et enjeux d'aménagement des petites villes. L'exemple de l'action culturelle (Territorial differentiations and issues of development in small-sized cities : the example of cultural policies)
Authors: Sibertin-Blanc Mariette
Published: December 2014

L'action culturelle dans les petites villes, dont les municipalités mobilisent la culture de façon variable, est considérée comme révélatrice et accélératrice de distinctions territoriales. Celles-ci résultent certes de différences structurelles, mais plus sûrement de stratégies de développement distinctes. Aussi, après avoir analysé les facteurs sources de différentiations en matière d'action culturelle, la réflexion se poursuit sur les différents enjeux de l'aménagement associés à la culture, en particulier la capacité des acteurs locaux à articuler plusieurs échelles d'intervention, à mobiliser des partenariats divers et à composer avec des logiques à la fois territoriales et sectorielles, essentiellement à travers l 'ingénierie.
La dégradation du patrimoine funéraire calcaire sur le littoral Atlantique français : l'exemple de l'île de Ré. (Weathering of limestone tombstones on the French Atlantic coast : the example of lsle of Rhé)
Authors: Augeyre Marie
Published: December 2014

Notre travail s'inscrit dans la lignée des recherches sur la dégradation des pierres tombales essentiellement menées dans le monde anglo-saxon. Notre terrain d'étude, l'île de Ré, est localisé sur la côte atlantique française au large de la ville de la Rochelle. L 'influence de l 'océan et l 'insularité sont des facteurs clés dans la mise en place et le développement de processus de météorisation tels que l'alvéolisation, la desquamation ou la désagrégation pulvérulente. Nous avons essayé d'évaluer les vitesses et les processus de dégradation des pierres tombales en calcaire sur quatre sites sélectionnés dans l 'île de Ré.
Les glissements translationnels paraglaciaires et l'évolution des grands reliefs monoclinaux du Sutherland occidental (Highlands d'Ecosse), (Paraglacial translational slides and erosion of monoclinal ridges in western Sutherland, Scottish Highlands)
Authors: Sellier Dominique
Published: December 2014

Les Highlands du Nord-Ouest comprennent des reliefs monoclinaux à revers de quartzite sur lesquels s'observent des formes de glissement de terrain banc sur banc. Ces formes sont de toutes dimensions, depuis les blocs isolés, comprimés et expulsés, jusqu'aux chaos de mégablocs. Elles se sont accomplies sur des pentes dont les faibles inclinaisons ont été compensées par les propriétés structurales des quartzites. Elles procèdent de dynamiques paraglaciaires (décompression et actions des eaux de fusion) qui ont participé à l'évolution postglaciaire de grands versants structuraux. Réciproquement, elles contribuent à illustrer le concept d'érosion paraglaciaire différentielle.
Liquid-phase exfoliated graphene: functionalization, characterization, and applications
Authors: Quintana Mildred , Tapia Jesús Iván , Prato Maurizio
Published: December 2014

The development of chemical strategies to render graphene viable for incorporation into devices is a great challenge. A promising approach is the production of stable graphene dispersions from the exfoliation of graphite in water and organic solvents. The challenges involve the production of a large quantity of graphene sheets with tailored distribution in thickness, size, and shape. In this review, we present some of the recent efforts towards the controlled production of graphene in dispersions. We also describe some of the chemical protocols that have provided insight into the vast organic chemistry of the single atomic plane of graphite. Controlled chemical reactions applied to graphene are expected to significantly improve the design of hierarchical, functional platforms, driving the inclusion of graphene into advanced functional materials forward.
Gas sensing properties of nanocrystalline diamond at room temperature
Authors: Davydova Marina , Kulha Pavel , Laposa Alexandr , Hruska Karel , Demo Pavel , Kromka Alexander
Published: December 2014

This study describes an integrated NH3 sensor based on a hydrogenated nanocrystalline diamond (NCD)-sensitive layer coated on an interdigitated electrode structure. The gas sensing properties of the sensor structure were examined using a reducing gas (NH3) at room temperature and were found to be dependent on the electrode arrangement. A pronounced response of the sensor, which was comprised of dense electrode arrays (of 50 µm separation distance), was observed. The sensor functionality was explained by the surface transfer doping effect. Moreover, the three-dimensional model of the current density distribution of the hydrogenated NCD describes the transient flow of electrons between interdigitated electrodes and the hydrogenated NCD surface, that is, the formation of a closed current loop.
De l'intersubjectivité à la subjectivation
Authors: Golse Bernard
Published: December 2014

Après avoir rappelé les différents modèles théoriques de l’accès à l’intersubjectivité, ainsi que la question des liens primitifs qui doivent se mettre en place parallèlement à l’instauration de l’écart intersubjectif, ce travail se penche sur la question du passage du registre de l’interpersonnel (intersubjectivité) à celui de l’intrapsychique (subjectivation), avant de se conclure en évoquant la place des psychothérapies dans la prise en charge des enfants autistes, psychothérapies dont l’objectif central est précisément d’aider les enfants à la prise en compte de l’autre comme un autre.
Intersubjectivité et subjectivation à l'école
Authors: Bruyant Catherine
Published: December 2014

Des recherches actuelles sur le fonctionnement du cerveau éclairent des observations cliniques faites depuis longtemps sur le fonctionnement psychique, notamment celui des enfants avec des troubles envahissants du développement. Comment l’école peut travailler le « vivre ensemble » dans l’accompagnement de ces enfants par des Auxiliaires de Vie Scolaire ? La question de la relation interpersonnelle n’est que peu abordée dans l’Éducation nationale surtout lorsqu’on constate que le temps accordé aux jeux, si importants dans la construction de l’enfant, tend à disparaître. L’accueil n’est pas un vain mot ; c’est une fonction qui, incarnée par l’enseignant et l’ avs , peut permettre de construire un cadre contenant et rassurant pour l’enfant en situation de handicap. De l’équilibre entre accueil de l’enfant tel qu’il est et désirs que l’adulte a pour l’enfant dépend la possibilité d’entrer dans une relation interpersonnelle.
L'oreille du Sphinx et la parole du sujet
Authors: Quesney Alain
Published: December 2014

À l’occasion du décès de Ginette Raimbault survenu en février dernier, un pédiatre se penche et s’épanche (un peu) sur un passé pas si ancien : une période féconde durant laquelle pédiatrie et pédopsychiatrie s’enrichissaient mutuellement auprès de la psychanalyse. Le clinicien ne peut que rendre hommage à Ginette Raimbault dont la pensée claire et éclairante fut déterminante pour sa pratique quotidienne.
Les administrations fiscales : une efficacité en question
Authors: Bazin Guillaume
Published: December 2014

Prélever l’impôt s’avère, dans un contexte de concurrence fiscale et de mobilité de la matière taxable et des contribuables, de plus en plus difficile. Dès lors, chaque administration fiscale cherche les moyens de réduire la différence entre le montant d’impôt dû et les sommes effectivement perçues dans les délais, ou tax gap . Les expériences étrangères peuvent se révéler riches d’enseignement pour une administration fiscale française engagée dans une réforme d’ampleur.
Délocalisations : les enseignements d'une analyse régionale
Authors: Carrincazeaux Christophe , Coris Marie , Frigant Vincent , Piveteau Alain
Published: December 2014

Pour comprendre les délocalisations, il est nécessaire de les appréhender à l’échelle régionale et de privilégier une entrée par les stratégies de firmes. Nous illustrons cette démarche en synthétisant les résultats d’un projet de recherche mené en Aquitaine. La première section propose une typologie quantifiée de la mobilité des firmes appliquée à la Région. Elle met en évidence l’impact régional fort des délocalisations ainsi que les difficultés de leur évaluation. Sur la base de trajectoires de firmes reconstituées par le biais d’entretiens, la deuxième section analyse les délocalisations en tant que révélateur des stratégies des entreprises. On en tire un certain nombre de conclusions en termes de politique industrielle.
Modélisation morphogénétique de moyen terme des villes : une schématisation du modèle théorique de RITCHOT et DESMARAIS dans le cadre du modèle standard de l'économie urbaine
Authors: Bonin Olivier , Hubert Jean-Paul
Published: December 2014

Nous présentons un modèle original de morphogenèse urbaine qui permet, par simulation, d’obtenir des espaces urbains qualitativement différenciés et des formes urbaines cohérentes avec des villes réelles. Ce modèle s’appuie sur une schématisation de la théorie de la forme urbaine due à RITCHOT dans le cadre du modèle canonique de l’économie urbaine d’ALONSO, MILLS et MUTH. Il répond correctement aux chocs de ses paramètres, et permet de questionner le rapport entre économie et politique dans la fabrique des formes urbaines.