bluuebunny/crossref_metadata_2025 huggingface dataset:
Thermodynamic Properties of Free Standing Thin Metal films Investigated Using Statistical Moment Method: Temperature and Pressure Dependence
Authors: Hung Vu Van , Phuong Duong Dai , Hoa Nguyen Thi
Published: September 2014

The moment method in statistical dynamics \textit{(SMM)} is used to study thermodynamic properties of free standing thin metal films with face-centered cubic structure (fcc) taking into account the anharmonicity effects of the lattice vibrations and hydrostatic pressures. The explicit expressions of the lattice constant, thermal expansion coefficient, and specific heats at the constant volume and those at the constant pressure, \(C_V\) and \(C_P\)  of the metal thin films are derived in closed analytic forms in terms of the power moments of the atomic displacements. The thermodynamic quantities of Au, Ag, Cu and Al metal thin films are calculated as a function of the temperature and pressure, and they are in good agreement with the corresponding results obtained from other theoretical calculations and experimental values. The effective pair potentials work well for the calculations of fcc metal thin films.
Temperature dependent magnetization of the two band model for diluted magnetic semiconductors
Authors: Thai Vu Kim , Tuan Hoang Anh
Published: September 2014

The temperature dependent magnetization of a two band model for diluted magnetic semiconductors as a function of magnetic coupling constant, hopping parameters and carrier densities is calculated by using the coherent potential approximation.  It is shown that the degree of overlapping of the impurity bands  and carrier density are crucial parameters determining the magnetization behavior of the system.
The influence of decompressive craniectomy on the development of hydrocephalus: a review
Authors: Ding Jun , Guo Yan , Tian Hengli
Published: September 2014

Decompressive craniectomy (DC) is widely used to treat intracranial hypertension following traumatic brain injury (TBI) or cerebral vascular disease. Many studies have discussed complications of this procedure, and hydrocephalus is a common complication of DC. To further evaluate the relationship between DC and hydrocephalus, a review of the literature was performed. Numerous complications may arise after DC, including contusion or hematoma expansion, epilepsy, herniation of the cortex through a bone defect, CSF leakage through the scalp incision, infection, subdural effusion, hydrocephalus and “syndrome of the trephined”. Several hydrocephalus predictors were identified; these included DC, distance from the midline, hygroma, age, injury severity, subarachnoid or intraventricular hemorrhage, delayed time to craniotomy, repeated operation, and duraplasity. However, results differed among studies. The impact of DC on hydrocephalus remains controversial.
Effect of Silane Type and Air-Drying Temperature on Bonding Fiber Post to Composite Core and Resin Cement
Authors: Rosatto Camila Maria Peres de , Roscoe Marina Guimarães , Novais Veridiana Resende , Menezes Murilo de Sousa , Soares Carlos José
Published: September 2014

This study evaluated the influence of silane type and temperature of silane application on push-out bond strength between fiberglass posts with composite resin core and resin cement. One hundred and sixty fiberglass posts (Exacto, Angelus) had the surface treated with hydrogen peroxide 24%. Posts were divided in 8 groups according to two study factors: air-drying temperature after silane application (room temperature and 60 ºC) and silane type: three pre-hydrolyzed - Silano (Angelus), Prosil (FGM), RelyX Ceramic Primer (3M ESPE) and one two-component silane - Silane Coupling Agent (Dentsply). The posts (n=10) for testing the bond strength between post and composite core were centered on a cylindrical plastic matrix and composite resin (Filtek Z250 XT, 3M ESPE) that was incrementally inserted and photoactivated. Eighty bovine incisor roots (n=10) were prepared for testing the bond strength between post and resin cement (RelyX U100, 3M ESPE) and received the fiberglass posts. Push-out test was used to measure the bond strength. Data were analyzed by two-way ANOVA followed by Tukey's test (a=0.05). ANOVA revealed that temperature and silane had no influence on bond strength between composite core and post. However, for bond strength between post and resin cement, the temperature increase resulted in a better performance for Silane Coupling Agent, Silano and RelyX Ceramic Primer. At room temperature Silane Coupling Agent showed the lowest bond strength. Effect of the warm air-drying is dependent on the silane composition. In conclusion, the use of silane is influenced by wettability of resinous materials and pre-hydrolyzed silanes are more stable compared with the two-bottle silane.
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation
Authors: Oliveira Maria Antonieta Veloso Carvalho de , Venâncio Jessyca Figueira , Pereira Analice Giovani , Raposo Luís Henrique Araújo , Biffi João Carlos Gabrielli
Published: September 2014

The aim of this study was to evaluate the root canal anatomy of mandibular incisors before and after endodontic instrumentation, identifying regions inaccessible to the action of files (Critical instrumentation Area - CA) in a three-dimensional perspective. Thirty human mandibular central incisors were selected, assigned to two groups (n=15) and instrumented using ProTaper Universal rotary files. In the RX group, longitudinal digital radiographic images were obtained in the buccolingual (BL) and mesiodistal (MD) views. In the CT group, cross-sectional micro-computed tomography (µCT) images were obtained at 3, 9 and 15 mm from the apex. The canal area of the specimens was evaluated before and after instrumentation using digital images from each group. Data were analyzed using t-test, one-way ANOVA with subdivided parcels and Tukey's test (α=0.05). The canal area found in the MD radiographs was larger than in the BL radiographs, which was also confirmed in the transversal images (p<0.01). The CA was only detected in the MD radiographs and µCT scans. On the root canal configuration, a continuous reduction in the canal conicity was observed in BL radiographs, while in MD view there was a constriction at the cervical third and subsequent increase at the middle third (p<0.01). The conical shape of the root canal was observed only in the BL view. The canal enlargement in BL radiographs was not indicative of homogeneous instrumentation, since unprepared areas (CA) were also verified on the buccal and lingual walls in different images
Malignant ventricular tachycardia in acromegaly: a case report
Authors: An Zhe , He Yu-quan , Liu Guo-hui , Ge Li-li , Zhang Wen-qi
Published: September 2014

CONTEXT: In patients with acromegaly, cardiovascular complications are the main cause of death; sudden death has been associated with ventricular tachyarrhythmias. In other patients with life-threatening malignant ventricular tachyarrhythmias, surgical placement of an implantable cardioverter-defibrillator (ICD) has proved highly effective in reducing sudden death rates. CASE REPORT: The present article reports the case of a 50-year-old male acromegalic patient who presented symptoms of syncope induced by ventricular tachycardia. An ICD was surgically implanted and a pituitary adenoma, which was responsible for the acromegaly, was completely removed in the same procedure. The surgery was successful and the ventricular arrhythmias were effectively terminated. During six months of follow-up, no documented arrhythmic episodes occurred. CONCLUSION: In patients with acromegaly, malignant ventricular tachyarrhythmia might be effectively controlled by implantation of an ICD and surgical removal of the pituitary adenoma.
Azacitidine and lenalidomide as an alternative treatment for refractory acute myeloid leukemia: a case report
Authors: Todaro Juliana , Bollmann Patrícia Weinschenker , Rother Edna Terezinha , Giglio Auro del
Published: September 2014

CONTEXT:Refractory acute myeloid leukemia (AML) is a difficult disease to control with second or third-line chemotherapy regimens. In this report, we describe using azacitidine in combination with lenalidomide as salvage therapy.CASE REPORT:52-year-old female was diagnosed with refractory AML and high-risk cytogenetics: complex monosomal karyotype consisting of t (3, 3) in association with monosomy 7 and del 5q. Morphological remission associated with maintenance of the cytogenetic abnormality of chromosome 3 and disappearance of the abnormalities relating to chromosomes 5 and 7 was achieved after three cycles of combination therapy with azacitidine and lenalidomide.CONCLUSION:Azacitidine plus lenalidomide can be a therapeutic option for patients with refractory AML, as illustrated in this case.
Prevalence of lung structure abnormalities in patients with acromegaly and their relationship with gas exchange: cross-sectional analytical study with a control group
Authors: Rodrigues Marcelo Palmeira , Naves Luciana Ansaneli , Viegas Carlos Alberto , Melo-Silva Cesar Augusto , Paula Wagner Diniz de , Cabral Márcia Teixeira , Araújo Renata Rodrigues , Casulari Luiz Augusto
Published: September 2014

CONTEXT AND OBJECTIVE: Different functional respiratory alterations have been described in acromegaly, but their relationship with pulmonary tissue abnormalities is unknown. The objective of this study was to observe possible changes in lung structure and explain their relationship with gas exchange abnormalities. DESIGN AND SETTING: Cross-sectional analytical study with a control group, conducted at a university hospital. METHODS: The study included 36 patients with acromegaly and 24 controls who were all assessed through high-resolution computed tomography of the thorax (CT). Arterial blood gas, effort oximetry and serum growth hormone (GH) and insulin-like growth factor I (IGF-1) were also assessed in the patients with acromegaly. RESULTS: The abnormalities found in the CT scan were not statistically different between the acromegaly and control groups: mild cylindrical bronchiectasis (P = 0.59), linear opacity (P = 0.29), nodular opacity (P = 0.28), increased attenuation (frosted glass; P = 0.48) and decreased attenuation (emphysema; P = 0.32). Radiographic abnormalities were not associated with serum GH and IGF-1. Hypoxemia was present in seven patients; however, in six of them, the hypoxemia could be explained by underlying clinical conditions other than acromegaly: chronic obstructive pulmonary disease in two, obesity in two, bronchial infection in one and asthma in one. CONCLUSION: No changes in lung structure were detected through thorax tomography in comparison with the control subjects. The functional respiratory alterations found were largely explained by alternative diagnoses or had subclinical manifestations, without any plausible relationship with lung structural factors.
A agenda do professor-pesquisador em Administração: uma análise baseada na sociologia da ciência
Authors: Melo Danilo , Serva Maurício
Published: September 2014

A Administração é considerada uma ciência nova, caso seja comparada às ciências tradicionais. O Ensino Superior em Administração no Brasil teve início na década de 1950, importando metodologias americanas de ensino. A partir da formação de professores e pesquisadores, a pesquisa científica nacional em Administração passa a ser desenvolvida e a ser parte essencial para a formulação de teorias e metodologias adequadas à realidade brasileira. Nesse contexto, a sociologia da ciência surge como perspectiva essencial para a compreensão do saber científico, colocando no centro da investigação o pesquisador, ator do campo científico, bem como suas relações dentro do campo. Com o objetivo de aprofundar a compreensão sobre o conteúdo do trabalho do professor-pesquisador em Administração, tendo em vista a necessidade dos integrantes desse campo de compreendê-lo melhor e de maneira sistematizada, este artigo visa a responder a seguinte questão: "Qual é o conteúdo do trabalho do professor-pesquisador, quais são seus objetivos e as atividades que compõem sua agenda?". Por meio deste estudo, predominantemente qualitativo, aprofundou-se o conhecimento sobre as atividades com as quais os professores-pesquisadores em Administração estão envolvidos e seus objetivos quando entraram no campo e seus objetivos atuais, assim como se estruturou a agenda do professor-pesquisador com base na agenda dos entrevistados. Percebeu-se que a carga de trabalho desse profissional excede as 50 horas semanais e que as atividades de pesquisa, as predominantes em relação ao objetivo atual desses profissionais, são desprivilegiadas na semana, sendo deixadas para o final de semana em 47% dos casos.
El conflicto organizacional de la educacion del management brasileño bajo la visión del habitus "Bourderiano"
Authors: Orellana Pino Cristian Eugenio
Published: September 2014

Este analisis es un ensayo critico-teórico sobre el estudio de los campos organizacionales que indagan sobre conflictos de auto-intereses que convergen entre los sistemas organizacionales y los referentes constructos de Bourdieu (1983). Se desarrolla un modelo conceptual tríadico de integración de representación entre el campo de la Universidades, el Habitus Bourideriano y las expresiones del Ethos. Es un ensayo de crítica al management hacia sus intereses egoístas (propios intereses) que están enraízados en la academia, comprendiendo la naturaleza peculiar (cinismo) del hacer un estado del arte fetiche la gestión en las empresas, como estudios organizacionales (narcicismos), conceptos que transformaran sus elementos gerencia blesen instrumentos fetiches (vanidades).
Contribuições da teoria da atividade para o estudo das organizações
Authors: Bulgacov Yára Lucia Mazziotti , Camargo Denise de , Canopf Liliane , Matos Raquel Dorigan de , Zdepski Fabíola Bevervanço
Published: September 2014

Este artigo tem como objetivo delinear princípios teóricos metodológicos para o estudo da organização. É adotado o conceito de prática social como menor unidade significativa para análise, compreendendo tal conceito a partir da teoria da atividade sócio-histórica e cultural, apoiando-se nas ideais de Vygotsky, Leontiev, Engestrom e Clot. É defendida aqui a concepção de organização a partir de seu acontecer histórico e dialético, no qual o particular é considerado uma instância da totalidade, a partir de um percurso teórico nas categorias sócio-históricas de: sistemas de atividade situados, sentidos e significados, aprendizagem e desenvolvimento humano. Aponta-se para uma forma de fazer ciência que supera a concepção positivista de método para resultado para uma concepção de método e resultado. A partir dessas categorias teóricas e do relato de três pesquisas realizadas, deduz-se um conjunto de princípios teóricos metodológicos de cunho sócio-histórico que contribuem para o estudo da organização, na medida em que se rompe com a dicotomia indivíduo versus grupo versus organização, com a concepção abstrata e a-histórica do fenômeno organizacional, com a concepção behaviorista de homem predominante nos estudos organizacionais e, finalmente, com categorias que apreendem dimensões subjetivas e intersubjetivas de uma realidade organizacional em constante movimento.
A condição paradoxal da administração de recursos humanos: entre a racionalidade instrumental e a racionalidade substantiva
Authors: Muzzio Henrique
Published: September 2014

Este artigo, na forma de ensaio, discute a condição paradoxal da ARH, que busca agir em função de uma perspectiva instrumental de racionalidade ao contemplar as exigências de competitividade organizacional. Entretanto, ao mesmo tempo, procura considerar os anseios dos colaboradores. Tais anseios, em uma perspectiva de emancipação do trabalhador, seriam alcançados pela racionalidade substantiva, a qual se caracteriza pelo julgamento ético, a autorrealização, a emancipação e a autonomia. As práticas organizacionais relacionadas às pessoas estão vinculadas a um contexto propriamente humano e a outro contexto altamente competitivo. Nesse sentido, os gestores da área parecem precisar agir em função de uma convergência das racionalidades instrumental e substantiva. O desafio da área é agir nessa condição paradoxal. É realizada uma discussão teórica sobre essa realidade e sobre possíveis direções para o futuro.
Taxa de evaporação em função do processo de recobrimento de grânulos de quebra pedra
Authors: Rocha Ana P. T. , Alsina Odelsia L. S. de , Silva Osvaldo S. da , Araújo Gilmar T. , Gomes Josivanda P.
Published: September 2014

Objetivou-se, neste trabalho, avaliar o efeito das variáveis do processo de recobrimento de grânulos de quebra-pedra (Phyllantus niruri L.) com suspensão polimérica em secador de leito de jorro convencional sobre a taxa de evaporação. Os grânulos foram obtidos a partir do processo de granulação por via úmida do extrato seco de quebra pedra e, como ligante, o PVP-K30. A suspensão polimérica à base de Eudragit® foi atomizada sobre o leito de partículas. Foi realizado um delineamento composto central rotacional (DCCR) simétrico e de segunda ordem constituído de um fatorial 23, com 8 ensaios, 3 pontos centrais e 6 pontos axiais, totalizando 17 experimentos. Os resultados mostraram que a vazão de suspensão influencia positivamente a taxa de evaporação. As variáveis pressão e temperatura não apresentaram influência significativa na taxa de evaporação. Foram encontrados modelos estatisticamente significativos e preditivos para taxa de evaporação. Em se tratando das interações entre as variáveis do processo observa-se que vazão/temperatura, pressão/vazão e pressão/temperatura exercem efeito significativo sobre a taxa de evaporação.
Variabilidade espacial de atributos físico-químicos do solo e seus efeitos na produtividade do algodoeiro
Authors: Sana Ronei S. , Anghinoni Ibanor , Brandão Ziany N. , Holzschuh Marquel J.
Published: September 2014

No Brasil, a utilização de sensores de produtividade no algodoeiro é recente. A variabilidade de atributos físicos e químicos de solo abre a possibilidade de delimitar zonas homogêneas dentro da lavoura. Relações entre esses atributos e a produtividade do algodoeiro podem ser obtidas indicando o potencial da cultura em cada condição de solo. O objetivo deste trabalho foi estabelecer relações entre atributos de solo que determinem sua variabilidade espacial e que interferem na produtividade do algodoeiro. Foi conduzido um experimento em área de 56,1 ha, em Cristalina, GO, com a cultura do algodão. Amostragens de solo foram realizadas em uma grade regular de 80 x 80 m para avaliação dos atributos químicos e físicos e leituras contínuas de condutividade elétrica aparente (CEa). Os dados de produtividade do algodoeiro foram obtidos por colhedoras equipadas com sensor de fluxo, nas safras 2010/11 e 2011/12. A produtividade apresentou forte dependência espacial e possui correlação negativa com CEa, pH CaCl2; a CEa foi uma ferramenta adequada para identificação da variabilidade de acidez e de nutrientes no solo na condição estudada possibilitando delimitar zonas homogêneas, para o manejo de forma diferenciada.
LOS MODOS DE INSCRIPCIÓN DEL SUJETO EN LOS ARTÍCULOS DE INVESTIGACIÓN CIENTÍFICA DE PSICOLOGÍA DE DOS REVISTAS CHILENAS DE LA CORRIENTE PRINCIPAL
Authors: Farré Juan Antonio González de Requena
Published: September 2014

Este estudio pretende describir los modos de inscripción del sujeto en el género de discurso del artículo de investigación científica de Psicología. Se explora cómo el sujeto lógico de que se habla en el enunciado se inscribe en el sujeto gramatical de la oración. Para ello, se realizó un análisis de discurso de la conclusión o discusión de una muestra de 104 artículos publicados en dos revistas de Psicología chilenas entre el 2007 y el 2011. Los resultados indican un predominio de los modos de enunciación nominalizados eidéticos y metadiscursivos, en que se habla de conceptos y construcciones conceptuales, como si se tratase de hechos impersonales sin presencia de agentes.
SENTIDOS DO CORPO: METÁFORA E INTERDISCURSO
Authors: Azevedo Aline Fernandes de
Published: September 2014

Sustentado na teorização do corpo como forma material, este artigo apresenta a análise de dois recortes selecionados no Facebook e que trazem como marca principal a inscrição na pele do sujeito, pelo traço na carne. Nele, procuro tecer considerações acerca do funcionamento da metáfora e do interdiscurso, privilegiando-os como forma de dar visibilidade aos procedimentos teórico-analíticos e refletir sobre as especificidades da análise de discurso de filiação pêcheutiana em estudos de textualidades verbovisuais. As textualidades analisadas permitem ver as inscrições corporais como marca da contradição e da divisão, sinais de pertencimento capazes de produzir efeitos de sentido de multiplicidade e transparência, em um corpo caleidoscópico e polifônico.
LITERATURA (D)E (DES)MOTIVAÇÃO: REPRESENTAÇÕES SOBRE O "BOM PROFESSOR" EM RELATÓRIOS DE ESTÁGIO SUPERVISIONADO
Authors: Melo Lívia Chaves de , Brito Cristiane C. de Paula
Published: September 2014

Este trabalho visa discutir, a partir da ancoragem epistemológica nos estudos de Pêcheux, em diálogo com a perspectiva bakhtiniana da linguagem, representações acerca do 'bom professor', construídas por alunos-mestres, ao mobilizarem literatura de motivação (textos com mensagens otimistas e encorajamentos ao leitor), para escreverem sobre suas experiências como professores em formação, em relatórios de estágio supervisionado de língua inglesa. Nossa análise aponta que essas produções escritas se constituem de um emaranhado de vozes e discursos, em que os sujeitos, na tentativa de construírem uma imagem completa e ideal perante outro, deixam de problematizar a natureza tensa, conflitiva e política dos processos de ensino-aprendizagem, significando o lugar de ('bom') professor sempre na dimensão de um vir-a-ser.
ABORDAGEM NEUROLINGUÍSTICA DO TEXTO NARRATIVO: UM ENFOQUE TEÓRICO
Authors: Jerônimo Gislaine Machado , Hübner Lilian Cristine
Published: September 2014

O texto narrativo permeia a experiência humana, pois se trata de um texto de uso frequente. No entanto, compreender esse tipo de texto não é uma tarefa simples, uma vez que a compreensão perpassa diferentes níveis, como propõe o Modelo de Processamento Textual, de Kintsch; Van Dijk (1978, 1983), Van Dijk (1992, 2010), Kintsch (1998), Kintsch; Rawson (2013). Sob o prisma da Neurolinguística, trazemos os seguintes questionamentos: como se dá a compreensão do texto narrativo e como os hemisférios cerebrais processam esse tipo de texto? O que estudos experimentais com neuroimagem nos dizem a esse respeito? Quais áreas cerebrais estão imbricadas no processamento da narrativa? A fim de discutir essas questões com base na literatura e oferecer aporte teórico a pesquisas na área, trazemos contribuições da Linguística e da Neurociência sobre a forma como os hemisférios cerebrais cooperam para a representação do texto narrativo.
Violencias y contra-dominación: notas etnográficas sobre el espacio social de la prostitución travesti en un barrio marginal de Lima
Authors: Cavagnoud Robin
Published: September 2014

A partir de observaciones etnográficas y entrevistas a profundidad, este artículo analiza la relación de fuerza desigual entre los actores presentes en una zona de prostitución travesti ubicada en las márgenes urbanas del sur de Lima. Si los jóvenes travestis que acuden cada noche a este lugar son el blanco de formas de violencia y de dominación ejercidas principalmente por la policía y los clientes, reaccionan a esta situación implementando estrategias de réplica para permitir su continuidad en el comercio sexual y asegurar su propia supervivencia. El estudio de estas interacciones evidencia lógicas individuales y colectivas que caracterizan el espacio social como de gran precariedad, combinada con la exclusión y la trasgresión originada por la orientación sexual de estos adolescentes y jóvenes en situación de prostitución.
Comparative wood anatomy of root and stem of Citharexylum myrianthum (Verbenaceae)
Authors: Marcati Carmen Regina , Longo Leandro Roberto , Wiedenhoeft Alex , Barros Claudia Franca
Published: September 2014

Root and stem wood anatomy of C. myrianthum (Verbenaceae) from a semideciduous seasonal forest in Botucatu municipality (22º52’20”S and 48º26’37”W), São Paulo state, Brazil, were studied. Growth increments demarcated by semi-ring porosity and marginal bands of axial parenchyma were observed in the wood of both root and stem. Many qualitative features were the same in both root and stem: fine helical thickenings, and simple and multiple perforation plates in vessel elements; large quantities of axial parenchyma in the growth rings, grading from marginal bands and confluent forming irregular bands in earlywood to lozenge aliform in latewood; axial parenchyma cells forked, and varied wall projections and undulations; septate fibres; forked and diverse fibre endings. Quantitative features differing between root and stem wood were evaluated using student’s t-test, and vessel frequency, vessel element length, vessel diameter, ray height, and vulnerability and mesomorphy indices differed significantly. Root wood had lower frequency of vessels, narrower and longer vessel elements, and taller rays than wood of the stem. The calculated vulnerability and mesomorphy indices indicated that C. myrianthum plants are mesomorphic. Roots seem to be more susceptible to water stress than the stem.
Erythroxylum (Erythroxylaceae) na Mata Atlântica da Bahia, Brasil
Authors: Araújo Thiago Felipe de , Fiasch Pedro , Amorim André M.
Published: September 2014

Neste trabalho é apresentado o levantamento florístico de Erythroxylum na Mata Atlântica do estado da Bahia. Todas as informações sobre as espécies foram obtidas através de análise de exsicatas depositadas nos herbários ALCB, CEPEC, HRB, HUEFS, HUESC, MBM, R, RB, SP, SPF e consultas virtuais aos herbários BR, F, NY e K. Foram realizadas expedições em campo, priorizando regiões com poucas coletas, registros de espécies raras e suspeitas de novidades taxonômicas. Foram registradas 28 espécies, sendo E. ectinocalyx um novo registro para a Bahia e E. compressum, E. distortum, E. leal-costae, E. mattos-silvae, E. membranaceum e E. petrae-caballi constantes na lista de espécies da flora brasileira ameaçadas de extinção. São apresentadas descrições, ilustrações, chave de identificação e comentários para todas as espécies estudadas.
Subsídios para a gestão de jardins botânicos no Brasil - o caso do Jardim Botânico Adolpho Ducke de Manaus
Authors: Barroso Antonia Lucia Fernandes , Mesquita Rita de Cássia Guimarães
Published: September 2014

Independente de sua forma de administração, para atingir seus objetivos, os jardins botânicos precisam estar amparados em instrumentos de gestão que orientem as ações a serem implementadas, e traduzam as expectativas e necessidades de seus visitantes em programas e projetos. O estudo se propôs a apresentar subsídios para nortear a gestão do Jardim Botânico Adolpho Ducke de Manaus, baseado na percepção, nas demandas e expectativas através de um levantamento de informações junto aos diferentes atores que se relacionam com o jardim, buscando assegurar o alcance efetivo dos seus objetivos, bem como seu fortalecimento institucional, ponderando suas características peculiares e importância no contexto amazônico. A pergunta central deste estudo é como deverá ser administrado para atender às expectativas e demandas de seus usuários. Para isso foram estabelecidos três objetivos principais, que deverão auxiliar no estabelecimento de uma gestão mais adequada ao jardim. Atualmente, o documento que norteia sua gestão é o seu regimento interno, no qual está estabelecido a sua missão, seus objetivos e estrutura de gestão, sendo este um primeiro norte, contudo ainda falta um instrumento que contemple um planejamento de futuro.
Aquatic plant community in porto primavera reservoir
Authors: Pitelli R.L.C.M. , Pitelli R.A. , Rodrigues C.J. , Dias J.H.P.
Published: September 2014

Aiming to identify the populations of aquatic plants present in the Porto Primavera reservoir and evaluate the behavior of Hydrilla verticillata colonization of this water body a survey was carried out in 2007. The data was based on presence or absence, only were assessed the presence or absence of the species and the data were subjected to cluster analysis to establish differences in distribution and occurrence of populations. The community of aquatic plants showed 24 species distributed in 16 botanical families. Cyperaceae and Pontederiaceae were the most representative in terms of species richness. The submerged macrophyte Hydrilla verticillata showed the highest frequency of occurrence in the water body, showing a different behavior from the other populations of the water body. Species like Eichhornia crassipes, Eichhornia azurea, Typha dominguensis and Oxycaryum cubense also showed different behavior in relation to other populations within the community, forming large populations in lagoons and backwater areas.
Requerimientos ambientales para la germinación de sphaeralcea bonariensis
Authors: Sobrero M.T. , Chaila S. , Ochoa M.C. , Pece M.G.
Published: September 2014

S.bonariensis (malva blanca), tolerante a Glifosato, es importante en Argentina en cultivos de siembra directa. En laboratorio se determinó el comportamiento germinativo de la especie en diferentes condiciones de temperatura (5, 10, 15, 20, 25, 30, 35, 40, 20/10, 25/15 y 30/20 °C con fotoperiodo de 12 hs de luz); de estrés salino (soluciones de Cloruro de sodio de 0; 30; 50; 70; 90; 130 y 150 mM) e hídrico (soluciones de polyethylene glycol de 0; 0,2; -0,4; -0,6; -0,8; -1,0 MPa). El diseño fue completamente aleatorizado con cuatro repeticiones. Se analizó la temperatura con modelos lineales generalizados y prueba DGC para diferencias entre las medias. Para el estrés hídrico y salino se analizó con regresión no lineal. A temperatura constante, la germinación máxima se dio a los 15 y a los 20 ºC (77 y 76%), disminuyó un 49% a 25 ºC, se registraron valores iguales o inferiores al 5% a 30 y a 35 ºC y fue nula a 5 y a 40 ºC. No se observaron diferencias significativas en los porcentajes de germinación en condiciones de alternancia térmica, en todos los casos superó el 50%. Al incrementar las concentraciones de cloruro de sodio la germinación decreció en forma exponencial. El 66% de la germinación se registró en el testigo y disminuyó al 10% a 130 mM, siendo inhibida a 150 mM. Cuando el estrés hídrico aumentó de 0 a -0.6 MPa la germinación decreció del 64% al 8% y fue inhibida a -0.8 MPa. La semilla podrá germinar en regiones templadas cálidas, siendo tolerante a la salinidad y medianamente tolerante al estrés hídrico.
Weed interference on growth and yield of transgenic maize
Authors: Faria R.M. , Barros R.E. , Tuffi Santos L.D.
Published: September 2014

Plants kept under competition tend to modify their morphology to optimize the use of production factors. This study aimed to evaluate the effects of competition between transgenic maize and five weed species on the growth and yield of transgenic maize hybrid. The experiment used a randomized block design with four replicates in a factorial 5 x 2 + 6 scheme consisting of a combination of maize under competition with five weed species (Bidens pilosa, Commelina benghalensis, Brachiaria brizantha, Sorghum arundinaceum and Ipomoea triloba) in two weed densities (15 or 30 plants m-2) plus six treatments corresponding to maize and weed species without competition. All the means for dry matter accumulated by maize plants in the stem and leaf in the density of 15 plants m ² were higher than the means for plants in coexistence with 30 plants m-². Number of kernels, diameter and length of cob were not affected by competition with weeds. The weeds that most interfered with maize biomass production were S.arundinaceum and B.brizantha. Leaf dry mass accumulation was more sensitive than the production of stem. It was observed that maize was usually very competitive with weeds, and there was a strong decrease in dry matter accumulation of all the weeds in the study when in coexistence with the crop.
Contribuições de Rousseau ao entendimento dos desastres socioambientais contemporâneos
Authors: Becker Evaldo , Becker Michele Amorim
Published: September 2014

Nosso objetivo no presente artigo é contextualizar as críticas de Rousseau àquilo que posteriormente será designado como ética socioambiental, a partir da qual se analisam as relações dos homens com o meio ambiente e como estas são determinadas e também determinantes de suas ações ético-políticas. Pretende-se ainda verificar em que medida o pensamento de Rousseau pode contribuir para o entendimento dos desastres socioambientais, na atualidade.
Notas sobre a universidade e o conceito de formação em Max Horkheimer
Authors: Klein Stefan
Published: September 2014

O intuito deste texto pode ser retratado através de duas tarefas principais que se propõe. De um lado, realiza um balanço - limitado e parcial, na medida em que trata de um recorte bastante circunscrito - da reflexão da teoria crítica da sociedade de Max Horkheimer acerca do problema da universidade, notadamente, no período imediatamente posterior ao fim da Segunda Guerra Mundial, e do modo como se relaciona com o conceito de formação (Bildung), bastante caro à tradição da universidade alemã moderna. Completado esse passo, o qual estabelece laços com o papel ocupado pela socialização nessa ótica teórica, visa-se, ao final, delinear algumas reflexões preliminares a propósito da contemporaneidade que, entende-se, podem beneficiar-se do enfoque concedido ao problema, com base na situação singular em que o pensamento de Horkheimer foi formulado.
Agent-based continuous-space particle pedestrian model
Authors: Chen Feng , Wang Zi-jia , Zhu Ya-di
Published: September 2014

In the design and evacuation evaluation of highly crowded places such as metro stations, continuous-space particle models have gained increasing attention because they are capable of simulating normal crowd self-organisation phenomena including lane formation without the need for complex walking rules. However, such models do not consider pedestrians' high level of automatic control. The paper introduces a new method to the original social force model based on a smart agent model using object-oriented programming. A corresponding implementation method is formulated and a corresponding algorithm designed. The parameters of the pedestrian body, the walking characteristics and the model itself are calibrated, and the modified model is implemented on a VC++ 2008 platform. Both one-directional and bidirectional interchange walkway simulations are studied. The results demonstrate better lane formation and the fundamental diagram from the simulation fits well with that obtained from a field study.
China's urban planning in transition
Authors: Gu Chaolin , Hu Lingqian , Guo Jing , Cook Ian G.
Published: September 2014

Significant political and economic shifts since 1949 have affected urban planning practice in China. This paper examines the transition of urban planning systems in China, using Beijing as a case study. China's master planning practice is divided into four stages – socialist master planning and anti-planning (1949–1978), reforming master planning (1979–late 1980s), urban development planning (early 1990s–2000) and comprehensive planning (2001–present). China's urban planning is closely related to its political, economic and social development. Plan making, implementation and the construction of large infrastructure and public facilities have played significant roles in China's rapid economic development. However, planning has also caused problems such as social injustice, environmental pollution and the uncoordinated development of municipal infrastructure, open spaces and human settlements.
Combining Social Role Theory, Social Role Valorization Theory, and Task-Centered Treatment for the Rehabilitation of Persons With Serious Psychiatric Conditions
Authors: Blakely Thomas J. , Dziadosz Gregory M.
Published: September 2014

This article presents a clinical paradigm for the delivery of rehabilitation services, meaning that whatever mental health problems clients experience are not a major factor in how they live their life. It consists of assessment, treatment, and social support of clients who have a serious psychiatric condition. It combines social role theory (SRT), social role valorization (SRV), and task-centered treatment (TCT). It emphasizes behavior change by a client with help from a social worker to move from nonnormative behaviors and a devalued social position associated with a psychiatric condition to the achievement of normative behaviors in a valued social position. Normative behavior is that behavior acceptable to observers. SRT and SRV are used for assessment of adaptation and social functioning. TCT is used for the achievement of treatment goals.
Headspace gas chromatography with flame ionization detection (HS-GC-FID) for the determination of dissolved methane in wastewater
Authors: Beale D. J. , Tjandraatmadja G. , Toifl M. , Goodman N.
Published: September 2014

There is currently a need for a simple, accurate and reproducible method that quantifies the amount of dissolved methane in wastewater in order to realize the potential methane that can be recovered and account for any emissions. This paper presents such a method, using gas chromatography with flame ionization detection fitted with a GS-Gas PRO column coupled with a headspace auto sampler. A practical limit of detection for methane of 0.9 mg L−1, with a retention time of 1.24 min, was obtained. It was found that the reproducibility and accuracy of the method increased significantly when samples were collected using an in-house constructed bailer sampling device and with the addition of 100 μL hydrochloric acid (HCl) and 25% sodium chloride (NaCl) and sonication for 30 min prior to analysis. Analysis of wastewater samples and wastewater sludge collected from a treatment facility were observed to range from 12.51 to 15.79 mg L−1 (relative standard deviation (RSD) 8.1%) and 17.56 to 18.67 mg L−1 (RSD 3.4%) respectively. The performance of this method was validated by repeatedly measuring a mid-level standard (n = 8; 10 mg L−1), with an observed RSD of 4.6%.
Quantitative identification of riverine nitrogen from point, direct runoff and base flow sources
Authors: Huang Hong , Zhang Baifa , Lu Jun
Published: September 2014

We present a methodological example for quantifying the contributions of riverine total nitrogen (TN) from point, direct runoff and base flow sources by combining a recursive digital filter technique and statistical methods. First, we separated daily riverine flow into direct runoff and base flow using a recursive digital filter technique; then, a statistical model was established using daily simultaneous data for TN load, direct runoff rate, base flow rate, and temperature; and finally, the TN loading from direct runoff and base flow sources could be inversely estimated. As a case study, this approach was adopted to identify the TN source contributions in Changle River, eastern China. Results showed that, during 2005–2009, the total annual TN input to the river was 1,700.4 ± 250.2 ton, and the contributions of point, direct runoff and base flow sources were 17.8 ± 2.8%, 45.0 ± 3.6%, and 37.2 ± 3.9%, respectively. The innovation of the approach is that the nitrogen from direct runoff and base flow sources could be separately quantified. The approach is simple but detailed enough to take the major factors into account, providing an effective and reliable method for riverine nitrogen loading estimation and source apportionment.
Membrane treatment of the bleaching plant (EPO) filtrate of a kraft pulp mill
Authors: Quezada Rafael , Silva Claudio Mudado , Passos Rezende Ana Augusta , Nilsson Leif , Manfredi Mauro
Published: September 2014

The objective of this study was to evaluate the use of membrane technology to treat oxygen and peroxide-reinforced extraction stage (EPO) filtrate from a kraft pulp mill bleach plant. Three different types of tubular membranes were tested in a pilot plant: (i) tight ultrafiltration (UF); (ii) open UF followed by nanofiltration (UF + NF); and (iii) nanofiltration (NF). According to the separation performance, considering the chemical oxygen demand (COD) and colour removal, permeate flux, operational simplicity and cost, the results indicated that the best option for treatment of (EPO) filtrates was the tight UF membrane. This membrane obtained a COD removal of 79% with a colour reduction of 86%. The effect of (EPO) filtrate UF treatment on the mill effluent treatment plant was evaluated. Compared with the actual mill effluent, the results indicated that if the UF permeate was recycled in the bleaching area, the COD reduction efficiency increased by 7%, the final effluent colour decreased by 8%, the biological sludge production decreased by 18%, and the energy consumption decreased by 40%. In the tertiary treatment plant, the coagulant dosage decreased by 40%, and the tertiary sludge production decreased by 46%.
Continuous phosphorus removal from water by physicochemical method using zero valent iron packed column
Authors: Jeong Joo-Young , Ahn Byoung-Min , Kim Yu-Jin , Park Joo-Yang
Published: September 2014

Excessive phosphorus in aquatic systems causes algal bloom resulting in eutrophication. To treat wastewater including effluent of wastewater treatment plant containing various amounts of phosphorus, a series of continuous experiments on removal of phosphorus from water were performed by using an electrochemical method. The spherical type of zero valent iron (ZVI) and silica sand were packed at appropriate volume ratio of 1:2 in a cylindrical column. An electric potential was applied externally, which can be changed as per the operational requirement. The results indicate that optimum hydraulic retention time of 36 min was required to meet the effluent standards with our laboratory-scale experimental setup. Lower amounts of phosphorus were removed by precipitation due to contact with iron, and additional electric potential was not required. In order to remove high amounts of phosphorus (around 150 mg/L as phosphate), external electric potential of 600 V was applied to the reactor. As the precipitation of phosphate mainly occurs at neutral pH, it is likely that FeHPO4 will be the main phosphorus-containing compound. Through the results of the large-scale experiments, the ZVI packed reactor can be used as a filter for removal of phosphorus of less than 10 mg/L as phosphate concentration.
Statistical attribution analysis of the nonstationarity of the annual runoff series of the Weihe River
Authors: Xiong Lihua , Jiang Cong , Du Tao
Published: September 2014

Time-varying moments models based on Pearson Type III and normal distributions respectively are built under the generalized additive model in location, scale and shape (GAMLSS) framework to analyze the nonstationarity of the annual runoff series of the Weihe River, the largest tributary of the Yellow River. The detection of nonstationarities in hydrological time series (annual runoff, precipitation and temperature) from 1960 to 2009 is carried out using a GAMLSS model, and then the covariate analysis for the annual runoff series is implemented with GAMLSS. Finally, the attribution of each covariate to the nonstationarity of annual runoff is analyzed quantitatively. The results demonstrate that (1) obvious change-points exist in all three hydrological series, (2) precipitation, temperature and irrigated area are all significant covariates of the annual runoff series, and (3) temperature increase plays the main role in leading to the reduction of the annual runoff series in the study basin, followed by the decrease of precipitation and the increase of irrigated area.
The Role of Emotional Intelligence in Mental Health and Type D Personality among Young Adults
Authors: Branscum Paul , Bhochhibhoya Amir , Sharma Manoj
Published: September 2014

The concept of Emotional Intelligence (EI) was developed as a way to evaluate and highlight the importance of emotional health as it relates to overall quality of life. This study examines the predictive nature of EI with standardized measures of mental health to create a model that can be utilized to create more effective health promotion interventions. Step-wise multiple regression was used to predict mental health (Kessler K-6 scale) and Type D personality (Denollett's Scale of Negative Affectivity and Social Inhibition) with five dimensions of EI. The results revealed that while not all of the dimensions of EI regressed significantly in each model, mood management was highly predictive of all mental health measures under investigation. Cut-off points for each scale were also helpful in interpreting the relatedness of EI to mental health.
Scanning electron microscopy analysis of marginal adaptation of composite resines to enamel after using of standard and gradual photopolimerization
Authors: Dacic Stefan , Dacic-Simonovic Dragica , Zivkovic Slavoljub , Dacic Milos , Radicevic Goran , Mitic Aleksandar , Tosic Goran , Igic Marko
Published: September 2014

Introduction. Bonding between composite and hard dental tissue is most
commonly assessed by measuring bonding strength or absence of marginal gap
along the restoration interface. Marginal index (MI) is a significant
indicator of the efficiency of the bond between material and dental tissue
because it also shows the values of width and length of marginal gap.
Objective. The aim of this investigation was to estimate quantitative and
qualitative features of the bond between composite resin and enamel and to
determine the values of MI in enamel after application of two techniques of
photopolymerization with two composite systems. Methods. Forty Class V
cavities on extracted teeth were prepared and restored for scanning electron
microscope (SEM) analysis of composite bonding to enamel. Adhesion to enamel
was achieved by Adper Single Bond 2 - ASB (3M ESPE), or by Adper Easy One -
AEO (3M ESPE). Photopolymerization of Filtek Ultimate - FU (3M ESPE) was
performed using constant halogen light (HIP) or soft start program (SOF).
Results. Quantitative and qualitative analysis, showed better
mikromorphological bonding with SOF photopolymerization and ASB/FU composite
system. Differences in MI between different photopolymerization techniques
(HIP: 0.6707; SOF: 0.2395) were statistically significant (p<0.001), as well
as differences between the composite systems (ASB/FU: 0.0470; AEO/ FU:
0.8651) (p<0.001) by two-way ANOVA test. Conclusion. Better marginal
adaptation of composite to enamel was obtained with SOF photopolymerization
in both composite systems.
Scaphoid fractures in children
Authors: Gajdobranski Djordje , Zivanovic Dragoljub , Mikov Aleksandra , Slavkovic Andjelka , Maric Dusan , Marjanovic Zoran , Milankov Vukadin
Published: September 2014

Introduction. Scaphoid fractures are rare in childhood. Diagnosis is very
difficult to establish because carpal bones are not fully ossified. In
suspected cases comparative or delayed radiography is used, as well as
computerized tomography, magnetic resonance imaging, ultrasound and bone
scintigraphy. Majority of scaphoid fractures are treated conservatively with
good results. In case of delayed fracture healing various types of treatment
are available. Objective. To determine the mechanism of injury, clinical
healing process, types and outcome of treatment of scaphoid fractures in
children. Methods. We retrospectively analyzed patients with traumatic closed
fracture of the scaphoid bone over a ten-year period (2002-2011). The outcome
of the treatment of ?acute? scaphoid fracture was evaluated using the Mayo
Wrist Score. Results. There were in total 34 patients, of mean age 13.8
years, with traumatic closed fracture of the scaphoid bone, whose bone growth
was not finished yet. Most common injury mechanism was fall on outstretched
arm - 76% of patients. During the examined period 31 children with ?acute?
fracture underwent conservative treatment, with average immobilization period
of 51 days. Six patients were lost to follow-up. In the remaining 25
patients, after completed rehabilitation, functional results determined by
the Mayo Wrist Score were excellent. Conclusion. Conservative therapy of
?acute? scaphoid fractures is an acceptable treatment option for pediatric
patients with excellent functional results.