bluuebunny/crossref_metadata_2025_split huggingface dataset:
A importância das atividades extracurriculares universitárias para o alcance dos objetivos profissionais dos alunos de administração da Universidade Federal de Santa Catarina
Authors: Pereira Alessandra Knoll , Koshino Marcos Fernandes , Ferreira Talita Ribeiro , Rocha Rudimar Antunes da 
Published: August 2012

Este artigo analisa a importância atribuída pelos alunos do curso de Administração da Universidade Federal de Santa Catarina às atividades extracurriculares para o alcance dos seus objetivos profissionais. O Objetivo geral configurou-se como: identificar como os alunos desse estudo avaliam a importância do desenvolvimento de atividades extracurriculares durante a vida acadêmica para o alcance dos seus objetivos profissionais; já os objetivos específicos foram: a) identificar as atividades extra-curriculares que os alunos consideram importantes para atingir os seus objetivos profissionais; b) identificar as aspirações profissionais dos ingressos e egressos; c) identificar se os ingressos e egressos planejam suas carreiras; d) verificar como a Instituição em estudo colabora com o oferecimento de atividades extra-curriculares; e) identificar quais as atividades que devem ser desenvolvidas para auxiliar o aluno em estudo na busca de sua realização profissional. Para tanto, esta pesquisa foi classificada como de caráter descritivo e qualitativo, e utilizou-se o método de pesquisa bibliográfica e a pesquisa de campo. Como instrumentos de coleta de dados foram utilizados questionários impressos e eletrônicos. Como resultado, tem-se a falta de orientação desses alunos sobre como selecionar as atividades extra-curriculares que poderão contribuir para o alcance dos seus objetivos profissionais, entre outros conclusões que serão apontados.
Conectividade na construção de conhecimentos: adequação da grade curricular no curso de engenharia de materiais
Authors: Kuester Scheyla , Pottmaier Daphiny , Machado Andréia de Bem , Alarcon Orestes Estevam 
Published: August 2012

A elaboração de uma grade curricular adequada pode ser feita partindo do princípio de que a construção de conhecimentos se dá por um processo de conexão entre saberes distintos em níveis crescentes de complexidade. Partindo do que já se sabe, novos conhecimentos e habilidades podem ser continuamente construídos. No ensino universitário a disposição das disciplinas na grade curricular parecem seguir certa linearidade, porém algumas vezes não ha conectividade entre seus conteúdos. Com base nisto, este artigo buscou levantar a questão da adequação curricular na construção de conhecimentos dentro do curso de Engenharia de Materiais da Universidade Federal de Santa Catarina. Para isso, foram elaborados e aplicados questionários de pesquisa de opinião e de verificação de conhecimentos prévios com os alunos de uma disciplina especifica do curso. De um modo geral, os dados apontam uma deficiência de conhecimentos prévios elementares por parte dos alunos, o que acaba por resultar em altos índices de reprovação nesta disciplina.
Universidade pública, democrática e popular: os desafios da implantação da Universidade Federal da Fronteira Sul
Authors: Almeida Júnior Vicente de Paula , Tosta Kelly Cristina Benetti Tonani 
Published: August 2012

Este artigo tem como objetivo apresentar o processo de implantação da Universidade Federal da Fronteira Sul a partir de alguns dos condicionantes de sua implantação (traços de contexto), da concepção delineada de universidade pública, democrática, popular (conceito) e, finalmente, da constituição de sua organização institucional, multicampi e interestadual(desenho institucional). Assim, fica demonstrada a importância da consideração do entorno como peça-chave na construção das políticas e estratégias de uma instituição que nasce a partir das demandas dos movimentos sociais. Visa garantir o acesso ao ensino superior público e de qualidade, a qualificação profissional e o compromisso de inclusão social e o desenvolvimento do ensino, da pesquisa e da extensão como condição de existência de um ensino crítico, investigativo e inovador. A UFFS busca construir uma estrutura organizacional diferenciada, onde os campi são os órgãos de base e são considerados igualmente importantes, garantindo o mesmo padrão de qualidade para as condições de infraestrutura física e humana no interior de cada campus. A essência é a manutenção do diálogo constante entre as instâncias administrativas, normativas e pedagógicas, entre os órgãos superiores e de base da universidade, onde a autonomia administrativa e pedagógica acontece em todos oscampi da universidade.
Missing Millions and Measuring Progress towards the Millenium Development Goals with a focus on Central Asian States
Authors: Carr-Hill Roy 
Published: August 2012

BackgroundIn developing countries, population estimates and assessments of progress towards the Millenium Development Goals are based increasingly on household surveys. It is not recognised that they are inappropriate for obtaining information about the poorest of the poor.. This is because they, typically, omit by design: those not in households because they are homeless; those who are in institutions; and mobile, nomadic or pastoralist populations. In addition, in practice, because they are difficult to reach, household surveys will typically under-represent: those in fragile, disjointed or multiple occupancy households; those in urban slums, and may omit certain areas of a country deemed to pose a security risk. Those six sub-groups constitute a pretty comprehensive ostensive definition of the ‘poorest of the poor’.MethodsThis paper documents these omissions in general, drawing on worldwide literature about the theory and practice fo implementing censuses and household surveys; and shows how substantial proportions are missing from both censuses and the sample frames of surveys.ResultsThis paper suggests that between 300 and 350 million will effectively be missed worldwide from the sampling frames of such surveys and from most censuses. The impact on the health MDGs is illustrated for the five republics of the former Soviet Union making up Central Asia: Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and UzbekistanConclusionsIt is impossible to assess progress towards or away from the MDGS in both the Central Asian Republics and worldwide. It is urgent to find solutions to the problem of the ‘missing ‘ poor population sub-groups.
Hybrid Organic Nanotubes with Dual Functionalities Localized on Cylindrical Nanochannels Control the Release of Doxorubicin
Authors: Ding Wuxiao , Kameta Naohiro , Minamikawa Hiroyuki , Wada Momoyo , Shimizu Toshimi , Masuda Mitsutoshi 
Published: August 2012

AbstractA method to control the release of the anti‐cancer drug doxorubicin (Dox) from cylindrical nanocapsules, known as organic nanotubes (ONTs), is reported. Co‐assembly of a tube‐forming glycolipid and its hydrophobized analogue yield novel ONTs with both –COOH and hydrophobic benzyloxycarbonyl groups localized on cylindrical nanochannels. The hydrophobicity of the ONTs nanochannels is easily tunable by adjusting the mixing ratio of the two glycolipids in the co‐assembly process. The resultant biologically stable ONTs are able to capture Dox with high efficiency into the cylindrical nanochannels via ion complexation between cationic Dox and anionic –COO−, and the release of Dox from hybrid ONTs is effectively controlled by tuning the electrostatic interaction and the hydrophobicity. This controlled release by tuning the hydrophobicity of the ONTs' nanochannels greatly reduces the cytotoxicity of Dox@ONTs for HeLa cells.
Dielectric relaxation studies of low thermal expansion polymer composites
Authors: Chandra Amreesh , Meyer Wolfgang H. 
Published: August 2012

AbstractThe results of temperature‐dependent dielectric and rheological measurements are reported on polymer‐ceramic composite films, poly(methyl methacrylate) (PMMA) : lead titanate (PbTiO3). Analyses of relaxational processes of the PMMA host matrix have been investigated using temperature‐dependent dielectric and rheological measurements. It is found that the α‐relaxation is more significantly affected by the addition of filler in comparison to β‐relaxation. The composite films are found to have much lower dielectric constants in comparison to the pure ceramic material. Suitable models have been used to explain the observed dielectric constant of the composite films. Using rheological measurements, occurrence of reinforcement in these composite films due to the addition of ceramic filler has also been observed and the results are discussed in the article. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Biocompatibility studies of electrospun nanofibrous membrane of PLLA‐PVA blend
Authors: Elakkiya Thangaraju , Sheeja Rajiv , Ramadhar Kumar , Natarajan Thirupathur Srinivasan 
Published: August 2012

AbstractElectrospinning, self‐assembly, and phase separation are some of the techniques available for the synthesis of nanofibers. Of these techniques, electrospinning is a simple and versatile method for generating ultrafine fibers from a wide variety of polymers and polymer blends. Poly L‐lactide (PLLA) and Poly (vinyl alcohol) (PVA) are biodegradable and biocompatible polymers which are mainly used for biomedical applications. Nanofibrous membranes with 1:9 ratio of PLLA to PVA (8 to 10 wt % and 10 wt %) were fabricated by electrospinning. The percentage porosity and contact angle of PVA in the PLLA‐PVA nanofibrous mat increased from 80 to 83% and from 39 ± 3° to 55 ± 3°, respectively. The water uptake percentage of PVA nanofibers decreased from 190 to 125% on the addition of PLLA to PVA in the PLLA‐PVA nanofibrous mat. The nanofiber morphology, structure and crystallinity were studied by Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT‐IR), and X‐ray diffraction (XRD), respectively. The thermal properties were studied by thermogravimetric analysis (TGA) and differential scanning calorimetery (DSC). The biocompatibility studies of PLLA‐PVA blend were performed using fibroblast cells (NIH 3T3) by MTT assay method. The release of Curcumin (0.5, 1.0, and 1.5 wt %) from PLLA‐PVA blend was found to be ∼ 78, 80, and 80%, respectively, in 4 days. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Ga‐Pd/Ga2O3 Catalysts: The Role of Gallia Polymorphs, Intermetallic Compounds, and Pretreatment Conditions on Selectivity and Stability in Different Reactions
Authors: Li Liandi , Zhang Bingsen , Kunkes Edward , Föttinger Karin , Armbrüster Marc , Su Dang Sheng , Wei Wei , Schlögl Robert , Behrens Malte 
Published: August 2012

AbstractA series of gallia‐supported Pd‐Ga catalysts that consist of metallic nanoparticles on three porous polymorphs of Ga2O3 (α‐, β‐, and γ‐Ga2O3) were synthesized by a controlled co‐precipitation of Pd and Ga. The effects of formation of Ga‐Pd intermetallic compounds (IMCs) were studied in four catalytic reactions: methanol steam reforming, hydrogenation of acetylene, and methanol synthesis by CO and CO2 hydrogenation reactions. The IMC Pd2Ga forms upon reduction of α‐ and β‐Ga2O3‐supported materials in hydrogen at temperatures of 250 and 310 °C, respectively. At higher temperatures, Ga‐enrichment of the intermetallic particles is observed, leading to formation of Pd5Ga3 before the support itself is reduced at temperatures above 565 °C. In the case of Ga‐Pd/γ‐Ga2O3, no information about the metal particles could be obtained owing to their very small size and high dispersion; however, the catalytic results suggest that the IMC Pd2Ga also forms in this sample. Pd2Ga/gallia samples show a stable selectivity towards ethylene in acetylene hydrogenation (≈75 %), which is higher than for a monometallic Pd reference catalyst. An even higher selectivity of 80 % was observed for Pd5Ga3 supported on α‐Ga2O3. In methanol steam reforming, the Ga‐Pd/Gallia catalysts showed, in contrast to Pd/Al2O3, selectivity towards CO2 of up to 40 %. However, higher selectivities, which have been reported for Pd2Ga in literature, could not be reproduced in this study, which might be a result of particle size effects. The initially higher selectivity of the Pd5Ga3‐containing samples was not stable, suggesting superior catalytic properties for this IMC, but that re‐oxidation of Ga species and formation of Pd2Ga occurs under reaction conditions. In methanol synthesis, CO hydrogenation did not occur, but a considerable methanol yield from a CO2/H2 feed was observed for Pd2Ga/α‐Ga2O3.
Disclosing the Structure/Activity Correlation in Trivalent Boron‐Containing Compounds: A Tendency Map
Authors: Cid Jessica , Carbó Jorge J. , Fernández Elena 
Published: August 2012

AbstractMost trivalent boron reagents are electrophiles owing to the vacancy for two electrons to fill the outer orbital of boron; however, interestingly, trivalent boron compounds can change their electrophilic character to a nucleophilic character by only changing the nature of the substituents on the boron atoms. With the help of computational tools, we have analyzed the structural‐ and electronic properties of boryl fragments that were either bonded to main‐group metals or coordinated to transition‐metals/rare‐earth‐metals and we have designed a map that might help to identify certain trends. This trend map will be useful for selecting an appropriate trivalent boron compound, depending on the sought reactivity.
A Molecular Shuttle Driven by Fullerene Radical‐Anion Recognition
Authors: Scarel Francesco , Valenti Giovanni , Gaikwad Sudhakar , Marcaccio Massimo , Paolucci Francesco , Mateo‐Alonso Aurelio 
Published: August 2012

AbstractWe describe a electrochemically driven molecular shuttle, in which shuttling takes place by means of fullerene radical‐anion recognition that results in a very low operation potential (E1/2=−0.580 V vs. decamethylferrocene). This has been achieved by introducing positive charges on the macrocycle, which strengthen the existing π–π interactions between the macrocycle and the electrogenerated fullerene radical anion by means of an electrostatic component. In addition, the synthesis of such a molecular shuttle has been accomplished by developing a new synthetic approach that exploits the controlled translocation of the macrocycle as a selective protecting group.
Gold(II) Phthalocyanine Revisited: Synthesis and Spectroscopic Properties of Gold(III) Phthalocyanine and an Unprecedented Ring‐Contracted Phthalocyanine Analogue
Authors: Wong Edwin W. Y. , Miura Akito , Wright Mathew D. , He Qi , Walsby Charles J. , Shimizu Soji , Kobayashi Nagao , Leznoff Daniel B. 
Published: August 2012

AbstractIn 1965, gold(II) phthalocyanine (AuPc, 1) was described to be synthesized from unsubstituted 1,3‐diiminoisoindoline and gold powder or AuBr. Compound 1 has been regarded as a rare example of a paramagnetic gold(II) complex. However, its chemistry, especially the oxidation state of the central gold ion, has not been previously explored due to the inherent insolubility of 1 caused by its unsubstituted structure. In our attempt to synthesize soluble AuPcs by using 5,6‐di‐substituted 1,3‐diiminoisoindolines, gold(III) phthalocyanine chloride (3) and a gold(III) complex of an unprecedented ring‐contracted phthalocyanine analogue ([18]tribenzo‐pentaaza‐triphyrin(4,1,1), 4) were isolated. With this discrepant result from the original literature in hand, a reinvestigation of the original AuPc synthesis by using unsubstituted 1,3‐diiminoisoindoline and various gold salts (including gold powder and AuBr) was performed, finding that only unsubstituted analogues of 3 and 4 or free‐base phthalocyanine were obtained. No gold(II)‐containing species could be isolated.
ChemInform Abstract: Solvent‐Free Hydration of Alkynes over a Heterogeneous Silver Exchanged Silicotungstic Acid Catalyst.
Authors: Rao K. T. Venkateswara , Prasad P. S. Sai , Lingaiah N. 
Published: August 2012

AbstractA silver tungstate salt is used as an efficient and reusable heterogeneous catalyst for the conversion of terminal alkynes (Ig) into corresponding ketones (II).
ChemInform Abstract: Synthesis of Alkyl‐Substituted Tribenzopentaphenes as Versatile Polycondensed Aromatic Hydrocarbon .pi±pi. Stacking Building Blocks.
Authors: Alameddine Bassam , Caba Sofia Martin , Schindler Mauro , Jenny Titus A. 
Published: August 2012

AbstractA convenient three‐step sequence is presented for the synthesis of 3,6,9,12‐tetraoctyl tribenzopentaphene (VI).
Changes in Symptom Severity, Schemas and Modes in Heterogeneous Psychiatric Patient Groups Following Short‐term Schema Cognitive–Behavioural Group Therapy: A Naturalistic Pre‐treatment and Post‐treatment Design in an Outpatient Clinic
Authors: van Vreeswijk M. F. , Spinhoven P. , Eurelings‐Bontekoe E. H. M. , Broersen J. 
Published: August 2012

Schema therapy has proven to be an effective treatment for patients with borderline personality disorder. However, little is known of its merits in other psychiatric (personality) disorders.ObjectiveThis study investigated whether schema therapy in a group setting (group schema cognitive–behavioural therapy [SCBT‐g]) was associated with changes in symptom and schema and mode severity. Furthermore, the aim was to search for baseline predictors and possible mediators of treatment outcome.Design and methodSixty‐three heterogeneous psychiatric outpatients who attended the SCBT‐g were included as participants. In this naturalistic pre‐treatment and post‐treatment design, data were available on the Symptom Checklist 90, the Schema Questionnaire and the Young–Atkinson Mode Inventory.ResultsAll outcome measurements showed changes with moderate to high effect sizes, with 53.2% of the patients showing a significant reduction in severity of psychiatric symptoms and schemas and modes. Higher pre‐treatment levels of the schema domain Other Directedness predicted greater symptom reduction. Pre‐treatment to mid‐treatment changes in schema severity predicted subsequent symptom improvement, but change in symptoms and schemas proved to be strongly correlated.ConclusionsIn this naturalistic study, SCBT‐g was associated with reduced symptom and schema and mode severity in more than half of the psychiatric outpatients. Furthermore, the results suggest that changes in schemas and symptomatology mutually reinforce each other. Copyright © 2012 John Wiley & Sons, Ltd.Key Practitioner Message

Over 50% of ambulatory patients show clinical improvement after treatment in a short‐term schema therapy group.
Other Directedness seems to be a predictor of schema group therapy success.
More randomized controlled trial studies and prediction and mediation studies on (short‐term) schema group therapy are sorely needed.
Insulin resistance in multiple tissues in patients with type 1 diabetes mellitus on long‐term continuous subcutaneous insulin infusion therapy
Authors: Donga Esther , van Dijk Marieke , Hoogma Roel P .L. M. , Corssmit Eleonora P. M. , Romijn Johannes A. 
Published: August 2012

AbstractBackgroundThe aim of this study was to determine whether insulin resistance is present in lean patients with uncomplicated type 1 diabetes mellitus on long‐term continuous subcutaneous insulin infusion (CSII), compared with matched healthy controls.MethodsWe studied eight patients (four men and four women) with type 1 diabetes mellitus on continuous subcutaneous insulin infusion and eight healthy controls, matched for age, gender and body mass index. Insulin sensitivity was measured by hyperinsulinemic euglycemic clamp studies with infusion of [6,6‐2H2] glucose.ResultsEndogenous glucose production did not differ in the basal state between patients and controls. However, endogenous glucose production was less suppressed during clamp conditions in patients compared with controls (64% vs 79%, p = 0.01), indicating decreased hepatic insulin sensitivity. During the clamp study, glucose disposal rate was ~38% lower in patients compared with controls (24.4 ± 2.5 vs 39.7 ± 5.6 µmol/kgLBM/min, p = 0.04). Accordingly, the rate of infusion of glucose was ~51% lower in patients (17.7 ± 2.8 vs 39.7 ± 5.7 µmol/kgLBM/min, p = 0.02). Finally, non‐esterified fatty acids levels were ~2.5 times higher in patients during steady state clamp conditions (150 ± 26 vs 58 ± 4 pmol/L, p = 0.01), reflecting decreased insulin sensitivity of lipolysis.ConclusionsInsulin resistance is a prominent feature of lean patients with type 1 diabetes mellitus, despite long term and stable treatment with continuous subcutaneous insulin infusion. Insulin resistance in type 1 diabetes involves both lipolysis, hepatic and peripheral glucose metabolism. Copyright © 2012 John Wiley & Sons, Ltd.
Microporous Porphyrin‐Based Metal Carboxylate Frameworks with Various Accessible Metal Sites: [Cu2(MDDCPP)] [M = Zn2+, Ni2+, Pd2+, Mn3+(NO3), Ru2+(CO)]
Authors: Matsunaga Satoshi , Endo Nanako , Mori Wasuke 
Published: August 2012

AbstractWe successfully synthesized a series of porphyrin‐based metal carboxylate frameworks with the composition [Cu2(MDDCPP)] [M = Zn2+, Ni2+, Pd2+, Mn3+(NO3), Ru2+(CO)] using MDDCPP [M = Zn2+, Ni2+, Pd2+, Mn3+Cl, Ru2+(CO)] building blocks. Single‐crystal X‐ray analysis revealed that the framework of [Cu2(ZnDDCPP)] formed a three‐dimensional network with (62·82·102)(62·8)2 topology, consisted of a two‐component linkage (i.e., paddlewheel Cu2 nodes and ZnDDCPP building blocks), and possessed an internal spherical cavity with a diameter of ca. 20 Å. This internal cavity was surrounded by a total of 16 accessible metal sites (AMSs) with two distinct metals, i.e., eight Zn atoms from the ZnDDCPP units and eight Cu atoms from the paddlewheel units. X‐ray powder diffraction measurements revealed that five complexes were isostructural regardless of the identity in the central metal of the DDCPP unit, and the diffraction patterns closely matched a pattern simulated from single‐crystal data for [Cu2(ZnDDCPP)]. This suggested that a wide variety of AMSs could be incorporated into the framework without alteration of the framework topology. The [Cu2(MDDCPP)] series exhibited permanent porosity, with BET surface areas in the range 379–810 m2 g–1, and adsorbed between 0.55 and 1.16 wt.‐% H2 at 77 K and 0.1 MPa.