bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dye-Sensitization of Tin Dioxide via the Functionalization of Oxide Surfaces with Trialkynylorganotins
Authors: Toupance Thierry , Borniol Mervyn de , Jousseaume Bernard , Vilaça Gil , Cachet Hubert , Vivier Vincent 
Published: June 2017

AbstractThe surface modification of nanoporous tin dioxide materials was achieved with trialkynylorganotin(IV) (C4H9-C=C)3Sn-(CH2)n(C10H20) (n = 4,6)1 endowed with a perylene dye to yield powders containing up to 0.13 mmol.g-1 of perylene unit or dye-modified thin films. Irreversible chemisorption occurred in solution at room temperature to give perylene dye grafted at the oxide surface via the cleavage of the three tin-alkynide bonds of the precursor and the formation of Snbulk-O-Sn-Cdye linkages. The photoelectrochemical cells made with the 1-modified films demonstrated maximum incident photon to current efficiency (IPCE) as high as 18% at 430 nm under white light illumination. The performances of the cells were interpreted in terms of the intrinsic properties of tin dioxide and aggregation of the perylene dye.
Growth Characteristics of Self-Assembled Mesoporous Nanospheres of Platinum and Platinum-Ruthenium
Authors: Knutson Trevor L. , Haglund Kimberly A. , Smyrl William H. 
Published: June 2017

AbstractSelf assembled spheres of both Pt and Pt/Ru have been electrodeposited in a matrix of carbon black on a gold electrode. The spheres are roughly 200nm in diameter and have a high degree of surface porosity. As a fuel cell catalyst, the activity of the Pt/Ru toward methanol oxidation is the primary indication of performance. Catalysts deposited in the current limiting regime (i.e. low metal ion concentrations or more negative deposition potentials) show markedly higher oxidation current at 4.8-5.5mA as measured at +0.2V vs. saturated calomel electrode. Pt only deposits were also made and show identical morphology to Pt/Ru deposits. Surface area analysis of the Pt deposits correlate well with the oxidation activity of the Pt/Ru deposits, at similar deposition conditions. The maximum specific surface area measured for Pt, based on 100% coulombic efficiency, was about 35m2/g.
Preparation of Highly Dispersed Iron Oxide Nanoparticles in Amine-Modified SBA-15
Authors: Tan Bing , Xu Wentao , Dozier Alan , Rankin Stephen E. 
Published: June 2017

AbstractSilica-supported iron oxide nanoparticles are prepared by precipitation within the pores of amine-functionalized SBA-15 silica. The loading of the iron oxide possible by this method is at least 11 wt%. STEM and TEM images show that the supported particles have a uniform diameter (average ∼ 4.0 nm) and are well dispersed. The supported iron oxide nanoparticles are amorphous after calcination at 300°C and, consistent with their nanoscale dimensions, are superparamagnetic at room temperature.
Visible light photocatalysis via nano-composite CdS/TiO2 materials
Authors: Srinivasan Sesha S. , Wade Jeremy , Stefanakos Elias K. 
Published: June 2017

AbstractNano-structured colloidal semiconductors with heterogeneous photocatalytic behavior have drawn considerable attention over the past few years. This is due to their large surface area, high redox potential of the photogenerated charge carriers and selective reduction/oxidation of different class of organic compounds. Nano-structured TiO2 is widely used as a photocatalyst for the effective decomposition of organic compounds in air and water under UV radiation. On the other hand, the development of visible light activated photocatalysis, for utilizing the available solar energy remains a challenge and requires low band gap materials as sensitizer. Among the various inorganic sensitizers, bulk CdS with an Eg of 2.5 eV and an energetically high-lying conduction band has been identified as a potential candidate. This can be coupled with a large band gap semiconductor (TiO2 with Eg ∼ 3.2 eV) for visible light photocatalysis and solar energy conversion. In the CdS sensitized TiO2 nano-composite system, charge injection from the conduction band of the semiconductor sensitizer to that of TiO2 can lead to an efficient and longer charge separation by minimizing electron-hole recombination. In the present paper, we have carried out a systematic synthesis of nano-structured CdS/TiO2 via reverse micelle process. The structural and microstructural characterizations of the as-prepared CdS/TiO2 nano-composites are determined using XRD and SEM-EDS techniques. The visible light assisted photocatalytic performance is monitored by means of degradation of phenol in water.
Formation and Molecular Sensing Property of Silver Nanoparticles from Sputtered Silver Oxide Layers
Authors: Fujimaki Makoto , Iwanabe Yasuhiko , Awazu Koichi , Tominaga Junji 
Published: June 2017

AbstractSurface-enhanced Raman scattering (SERS) efficiency of silver nanoparticles formed by laser irradiation or thermal annealing in sputtered silver oxide layers was examined. Silver nanoparticles formed by irradiation of He-Ne laser light (632.8 nm) to a sputtered silver oxide thin film thermally annealed at 300°C show good SERS, while silver nanoparticles formed by thermal annealing at 600°C scarcely show SERS. From these results, it is deduced that thermal annealing at a proper temperature results in formation of silver nuclei that can be precursors of silver nanoparticles with desirable sizes to induce the SERS, while thermal annealing at a higher temperature results in the formation of large silver particles that no longer cause the SERS.
Facile Fabrication and Integration of Patterned Nanostructured Titania into Microsystems: Effect of Parent Ti Microstructure on Kinetics of Reaction
Authors: DeRosa Diana M. , Zuruzi Abu Samah , MacDonald Noel C. 
Published: June 2017

AbstractOne promising route to integrate nanostructured titania (NST) into nano/micro electrical mechanical systems (N/MEMS) devices is by reacting Ti films with aqueous hydrogen peroxide (aq. H2O2) solution. However, little is known about the reaction kinetics between aq. H2O2 and Ti thin films. Here, the effect of Ti microstructure and film thickness on kinetics of reaction was investigated. For films less than 50 nm thick, the kinetics is interface-reaction controlled. For thicker films, the reaction is controlled by diffusion through a hydrated titania gel layer. Activation energies of these kinetics were extracted. Pore size of NST is affected by thickness of parent Ti films. Depending on thickness of parent Ti films, NST with average pore sizes ranging from 15 nm to 150 nm was formed. The ability to form integrated porous NST features with controllable pore sizes may have implications on the development of devices for drug delivery and macromolecular separation.
Preparation of a Supported Si3N4 Membrane for Gas Filters
Authors: Cheng Fei , Kelly Stephen M. , Clark Stephen , Bradley John S. 
Published: June 2017

AbstractA supported Si3N4 membrane was prepared via a non-aqueous sol-gel process using tris(dimethylamino)silylamine, H2NSi(NMe2)3, as a starting material. The SEM image indicated the formation of the Si3N4 membrane with thickness about 2.3 μ m on the surface of the α-Al2O3 support. Nitrogen adsorption analysis indicated that, although most of the pores were similar to those of the α-Al2O3 disk, a new pore size distribution of 20–50 Å for the Si3N4 membrane was observed. The new membrane demonstrates high selective absorption of NO2, suggesting a potential application as a selective filter for gas sensors.
Sensing Properties of Nanostructured Sm1-xBaxCoO3 (x = 0, 0.1) obtained by Solution Method
Authors: Michel Carlos R. , Delgado Emilio , Ceja Israel 
Published: June 2017

AbstractSome cobaltites with perovskite-type structure exhibit outstanding transport properties and high chemical activity, which make these materials suitable for applications in areas of gas sensors, heterogeneous catalysis, gas separation membranes and cathodes for solid oxide fuel cells. In this work, polycrystalline samples of Sm1-xBaxCoO3 (x = 0, 0.1) were prepared by an aqueous solution method using the corresponding nitrates. X-ray diffraction patterns of calcined samples showed that single-phase SmCoO3 was obtained at 900°C, whereas Sm0.9Ba0.1CoO3 was formed at 700°C. Electron microscopy images revealed that micron-sized particles were obtained for SmCoO3, whereas a nanostructured and nanoporous material wasobserved for Sm0.9Ba0.1CoO3. Electrical measurements made on thick films of the oxides revealed a semiconductor behavior in both phases, however Sm0.9Ba0.1CoO3 samples showed a larger conductivity compared with SmCoO3; dynamic response of resistance experiments made in air and CO2 revealed that Sm0.9Ba0.1CoO3 is selective to CO2.
Characteristics and Applications of Nanostructured Nitrides Synthesized by Vapor Phase Reactions
Authors: Ziegenbalg Gerald , Pätzold Carsten , Ŝingliar Ute , Berthold Rico 
Published: June 2017

AbstractGas phase ammonolysis of volatile metal chlorides at elevated temperatures is a favorable way to produce nitride or oxynitride nanopowders. Their composition as well as the physico-chemical properties is determined by reaction temperature, molar ratio of the reactants and the residence time of the gases in the reaction zone. Both single and multi component powders can be obtained. Typical particle sizes are in the range of 50 to 350 nm. The specific surface can reach values up to 300 m2/g. Microporous analysis revealed the presence of pores with a diameter between 0.6 and 0.7 nm in amorphous silicon nitride. The powders can be used, depending on the characteristics, as catalyst or basic catalyst support. The paper gives an overview about vapor phase synthesis of single and multi component nitrides as well as the use of amorphous silicon nitride as a basic catalyst support for dehydrogenation of propane.
Optimized Silver Film over Nanosphere Surfaces for the Biowarfare Agent Detection Based on Surface-Enhanced Raman Spectroscopy
Authors: Zhang Xiaoyu , Duyne Richard P. Van 
Published: June 2017

AbstractThis work presents the rapid detection of Bacillus subtilis spores, harmless simulants for Bacillus anthracis, using surface-enhanced Raman spectroscopy (SERS) on silver film over nanosphere (AgFON) substrates. Calcium dipicolinate (CaDPA), a biomarker for bacillus spores, can be extracted effectively from spores with nitric acid and successfully detected by SERS. The highly tunable nature of AgFON optical properties was exploited to establish general optimization conditions. AgFON surfaces optimized for 750-nm laser excitation have been characterized by UV-vis diffuse reflectance spectroscopy. The SERS signal from extracted CaDPA was evaluated over the spore concentration range 10-15-10-12M to determine the adsorption capacity of the AgFON surface and the limit of detection (LOD). These sensing capabilities have been successfully transitioned to an inexpensive, portable Raman spectrometer. Using the extraction method and this field-portable instrument, the anthrax infectious dose of 104spores were detected with only a 5-second collection period on a one-month-old prefabricated AgFON substrate.
Long-Term Stability of Thermally-Carbonized Porous Silicon Humidity Sensor
Authors: Tuura J. , Björkqvist M. , Salonen J. , Lehto V-P. 
Published: June 2017

AbstractThermally-carbonized porous silicon humidity sensor showed ageing affecting electrical characteristics. During the first month the variations in electrical characteristics were very distinctive. The decline in the sensitivity of the sensor after three months storage was found to be 37%, however, the sensitivity was still over 200%. When aged, the sensor stabilized and only minor variations on capacitance were noticeable. Sensitivity, on other hand, remains nearly constant. The hysteresis of the sensor did not change remarkably during storage. The variations on capacitance values at different relative humidities during storage were measured as a function of detection frequency. This showed an interesting feature of the ageing of the sensor, which is also discussed.
Reducing Uncertainty: Predictors of Stopping Chemotherapy Early and Shortened Survival Time in Platinum Resistant/Refractory Ovarian Cancer—The GCIG Symptom Benefit Study
Authors: Roncolato Felicia T. , Joly Florence , O'Connell Rachel , Lanceley Anne , Hilpert Felix , Buizen Luke , Okamoto Aikou , Aotani Eriko , Pignata Sandro , Donnellan Paul , Oza Amit , Avall-Lundqvist Elisabeth , Berek Jonathan S. , Heitz Florian , Feeney Amanda , Berton-Rigaud Dominique , Stockler Martin R. , King Madeleine , Friedlander Michael ,   for the GCIG Symptom Benefit group
Published: June 2017

Abstract

Background
Clinicians and patients often overestimate the benefits of chemotherapy, and overall survival (OS), in platinum resistant/refractory ovarian cancer (PRROC). This study sought to determine aspects of health-related quality of life and clinicopathological characteristics before starting chemotherapy that were associated with stopping chemotherapy early, shortened survival, and death within 30 days of chemotherapy.

Materials and Methods
This study enrolled women with PRROC before starting palliative chemotherapy. Health-related quality of life was measured with EORTC QLQ-C30/QLQ-OV28. Chemotherapy stopped within 8 weeks of starting was defined as stopping early. Logistic regression was used to assess univariable and multivariable associations with stopping chemotherapy early and death within 30 days of chemotherapy; Cox proportional hazards regression was used to assess associations with progression-free and OS.

Results
Low baseline global health status (GHS), role function (RF), physical function (PF), and high abdominal/gastrointestinal symptom (AGIS) were associated with stopping chemotherapy early (all p &lt; .007); low PF and RF remained significant after adjusting for clinicopathological factors (both p &lt; .0401). Most who stopped chemotherapy early had Eastern Cooperative Oncology Group Performance Score 0–1 at baseline (79%); PF, RF, and GHS remained independently significant predictors of stopping chemotherapy early in this subgroup. Death within 30 days of chemotherapy occurred in 14%. Low GHS, RF, and PF remained significantly associated with death within 30 days of chemotherapy after adjusting for clinicopathological factors (all p &lt; .012).

Conclusion
Women with low GHS, RF, or PF before starting chemotherapy were more likely to stop chemotherapy early, with short OS. Self-ratings of GHS, RF, and PF could improve patient-clinician communication regarding prognosis and help decision-making in women considering chemotherapy for PRROC.
ANALISIS TERJEMAHAN BAHASA PERANCIS PADA NOVEL PERBURUAN KARYA PRAMOEDYA ANANTA TOER
Authors: Miyondri Popi 
Published: June 2017

This article reveals the results of this analyze the translation into French language of novel Perburuan by Pramoedya Ananta Toer. This novel has chosen as our resource of this research because this novel has won the BalaiPustaka award in 1949 in Jakarta and this novel describes the ideology of the people in Indonesia and Japanese colonizer in Japanese colonization period. This study was conducted to answer our two questions, such as how translator translates the novelPerburuan and is the translator is a faithful translator or unfaithful translator?. This study is based on qualitative research by analyzing the translation of title, book cover and also the phrases translated which has indicated a translation style of French translator.we analyze this data by using the theories of translation such as post-colonial translation theory and cultural translation theory for third word countries as our references to analyze the novel translated intitledLe Fugitif by François-René Daillie. The results of this study are the translator is a faithful translator based on the contexte and content in the novel Perburuan. The style of faithful translation aims to convey the author’s intention as faithfully as possible into original version to the French readers.Keywords: Translation, language, novel, post-colonial translation, cultural translation
Leitura de textos no ensino médio: uma proposta didática
Authors: Santos Givan Ferreira , De Souza Sônia Regina Antunes Naufal 
Published: June 2017

RESUMO:
Este artigo tem por objetivos apresentar e analisar a aplicação de uma proposta didática de trabalho com leitura na escola, com base em operações de pensamento - comparação, classificação, argumentação, hipótese e definição, para auxiliar o professor de Língua Portuguesa do Ensino Médio a desenvolver em seus aprendizes a competência leitora de textos. A pesquisa concebe a leitura numa visão cognitiva e sociointeracional e se caracteriza, basicamente, como de campo, experimental e analítica. Os resultados demonstram uma apropriação satisfatória dos estudantes sobre as operações de pensamento e seu uso consciente como estratégia para chegar ao entendimento global e coerente de textos.

PALAVRAS-CHAVE: Ensino escolar de leitura de textos. Operações de pensamento. Proposta didática.
Júlio Ribeiro no horizonte de retrospecão da gramatização brasileira
Authors: De Aquino José Edicarlos 
Published: June 2017

RESUMO:
Ao analisar os discursos sobre Júlio Ribeiro em 36 obras publicadas entre 1881 e 1959, marcando as questões nas quais seu nome é mobilizado, mostramos haver uma contradição entre um apagamento de Júlio Ribeiro como referência para a realização de análises gramaticais e linguísticas e um discurso histórico que o coloca a cada instante em primeiro lugar na história dos estudos gramaticais e linguísticos no Brasil. Esse lugar contraditório de Júlio Ribeiro no horizonte de retrospecção da gramatização brasileira nos revela como são controversos os discursos de fundação de um campo do conhecimento.

PALAVRAS-CHAVE: Júlio Ribeiro, Estudos gramaticais e linguísticos no Brasil, Gramatização brasileira, Horizonte de retrospecção, Discursos de fundação.
Preposições transversais em artigo de opinião
Authors: Bernini Ednéia Aparecida Bernardineli , Sousa-Machado Tatiane Henrique , Jaeger Hintze Ana Cristina 
Published: June 2017

RESUMO:
Este artigo tem como objetivo geral evidenciar por meio das análises do corpus selecionado - artigos de opinião do jornal Folha de São Paulo - como as preposições do eixo transversal contribuem para a organização discursiva, a partir da perspectiva da Descrição Funcional. Através de pesquisa quantitativo-qualitativa de cunho interpretativo, buscaremos verificar como essas preposições atuam na construção do texto (discursivização), bem como analisar a sintaticização dessas preposições no corpus eleito e os processos de semanticização. Das análises dos vinte e seis artigos selecionados, verificou-se que as preposições constroem sentidos, a partir de seu contexto e cotexto.

PALAVRAS-CHAVE: preposições; eixo transversal; língua portuguesa; descrição funcional.
Joseph Campbell: o maestro dos mitos Uma entrevista com Lia Diskin
Authors: Farias da Silva Carlos Aldemir 
Published: June 2017

Nesta entrevista realizada em 24 de novembro de 2011, Lia Diskin fala sobre Joseph Campbell, o maestro dos mitos, e o árduo trabalho de tradução da obra de pensadores da magnitude do mitólogo para a língua portuguesa.
Peran Keluarga Dalam Pendidikan Akhlak
Authors: Rahmah St. 
Published: June 2017

Keluarga merupakan unit sosial terkecil dalam masyarakat yang mempunyai peran yang sangat besar untuk mencetak kader-kader yang berkualitas bagi sebuah Negara. Apabila suatu Negara diibaratkan sebuah bangunan, maka keluarga merupakan pondasinya dan apabila Negara diibaratkan sebagai kesatuan tubuh, maka keluarga adalah jantungnya. Kedudukan dan fungsi keluarga dalam kehidupan manusia adalah termasuk hal yang penting karena bersifat dasar yang pada hakikatnya keluarga merupakan wadah pendidikan awal yang membentuk watak dan akhlak bagi anak. Anak adalah amanah Allah yang harus dijaga dan dididik untuk mencapai keutamaan dalam hidup dan mendekatkan diri kepada Allah. Semua bayi yang dilahirkan di dunia ini bagaikan sebuah mutiara yang belum diukur dan belum berbentuk amanat bernilai tinggi. Karena itu kedua orang tuanyalah yang akan mengukir dan membentuknya menjadi mutiara yang berkualitas tinggi dan berakhlak mulia. Maka ketergantungan anak kepada pendidiknya termasuk kepada orang tuanya akan tampak sekali. Kedekatan ayah ibu (orang tua) dengan anak, jelas memberikan pengaruh yang paling besar dalam proses pendidikan (pembentukan) akhlak, dibanding pengaruh yang diberikan oleh komponen pendidikan lainnya. Karena ikatan ibu bapak dengan putera puterinya adalah lebih kuat daripada ikatan persaudaraan dan ikatan lainnya. Pendidikan dalam keluarga merupakan lembaga pendidikan pertama yang pernah ada dalam peradaban manusia sebelum mengenal dengan pendidikan formal. Pendidikan tertua ini pun dikenal sebagai salah satu dari pendidikan informal yang berlangsung secara terus-menerus tanpa terorganisir dengan tujuan dan ciriciri tersendiri. Sehingga dalam hal ini pendidikan informal tidak hanya paling tua, tetapi menurut sejarahnya juga paling banyak kegiatannya, paling luas jangkauannya, tidak membatasi usia (meliputi berbagai usia) dan tidak dibatasi oleh waktu, kapan dan di mana saja.
Pemanfaatan Fasilitas Google dalam Perkuliahan di Fakultas Dakwah
Authors: Priyatna Surya Eka 
Published: June 2017

In the course we are familiar with the Internet network facilities. Of course also familiar with the Google search engine. But we rarely use the other facilities there, which turned out to be very helpful in learning activities. Company Google intelligently integrates most of the processing functions of administrative data in applications, such as mail, drive, document, spreadsheet, slide and form. Such products can we maximize the efficiency and effectiveness of lectures. Pada perkuliahan kita sudah familiar dengan fasilitas jaringan internet. Sudah tentu juga familiar dengan mesin pencari google. Tetapi kita jarang menggunakan fasilitas-fasilitas lainnya yang ada, yang ternyata sangat membantu dalam kegiatan perkuliahan. Perusahaan Google dengan cerdas mengintegrasikan sebagian besar fungsi-fungsi pengolahan data administratif dalam aplikasinya, seperti mail, drive, document, spreadsheet, slide dan form. Produk-produk tersebut dapat kita maksimalkan untuk efisiensi dan efektifitas perkuliahan.
STUDENT'S ABILITY TO SOLVE THE PROBLEM OF THE COMPARISON WITH MODEL PROBLEM BASED LEARNING IN THE CLASSROOM INSTRUCTION VII MTs NOORHIDAYAH DARUSSALAM
Authors: Paris Amin 
Published: June 2017

This study aims to determine the ability of solving mathematical problems by using model Problem Based Instruction and the effect of problem based learning model Instruction on students' problem-solving abilities. The research method used experimental method to the type of field research and quantitative approaches. The sample in this study were students of class VII-B MTs Noorhidayah Darussalam in comparison with the material research design One-group pretest-posttest design. Design Research, the study was conducted only in one class as a class experiment. The data analyzed were taken from the value pretest and posttest study siswa.Hasil get the result that the problem solving process of students in the material ratio is in conformity with the learning pace of Problem Based Instruction, and there are significant learning model of problem-based instruction to the student's ability in problems solving on material ratio. Key Words : problem solving in mathematics, problem based instruction, comparasion