bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of methylphenidate on appetite and growth in children diagnosed with attention deficit and hyperactivity disorder
Authors: Gurbuz Fatih , Gurbuz Berrak Bilginer , Celik Gonca Gul , Yildirim Veli , Ucakturk Seyit Ahmet , Seydaoglu Gulsah , Ucakturk Eda Mengen , Topaloglu Ali Kemal , Yuksel Bilgin 
Published: August 2015

AbstractThe purpose of this study was to determine the levels of leptin, ghrelin, and nesfatin-1 to elucidate the causes of poor appetite and growth retardation in patients receiving methylphenidate therapy for attention deficit hyperactivity disorder. The study was performed on 89 male subjects; 48 patients and 41 healthy controls, aged 7–14 years. Following treatment, patients’ leptin levels increased and ghrelin levels decreased while no significant change was found in nesfatin-1 levels. Of the 48 patients, 34 developed lack of appetite. In patients who developed lack of appetite, body weight SDS, body mass index (BMI), and BMI SDS were statistically significantly reduced; moreover, height SDS was reduced, though not to a statistically significant extent. This study attempted to elucidate the mechanisms that mediate the association between methylphenidate and appetite and growth, for which no studies have yet to be published.
Topical dihydrotestosterone to treat micropenis secondary to partial androgen insensitivity syndrome (PAIS) before, during, and after puberty – a case series
Authors: Becker David , Wain Lisa M. , Chong Yih Harng , Gosai Sonal J. , Henderson Nina K. , Milburn Jacqui , Stott Victoria , Wheeler Benjamin J. 
Published: August 2015

AbstractX-linked partial androgen insensitivity syndrome (PAIS) causes under-virilization at all stages of development. In two thirds of males, this results in micropenis. Dihydrotestosterone (DHT) is a potent androgen that is critical for male genital development, which when applied topically, has been shown to increase penile length with micropenis of varying etiologies. We present the first case series using topical DHT gel to treat micropenis in 46,XY males with PAIS, before, during, and after puberty.Three related 46,XY males with confirmed p.L712F androgen receptor mutations exhibited varying degrees of micropenis post-surgical correction. They were of pre-pubertal, peri-pubertal and adult ages, respectively. Following baseline clinical and laboratory assessments all completed a 4-month course of daily DHT gel 2.5% (androstanolone) topically to penis (0.3 mg/kg body weight), with monitoring for adverse effects. Primary outcome was change in stretched penile length (SPL) following treatment.Mixed results were obtained following topical DHT therapy. In the pre- and peri- pubertal patients, SPL changed from 2.5 cm to 3.5 cm (+40%), and 3.5 cm to 5.7 cm (+63%), respectively. In the adult patient with 1 year of prior high-dose weekly testosterone therapy, no additional change in SPL was seen. No adverse effects of topical DHT were reported or observed throughout the 4 months of treatment.Topical DHT treatment appears to be a safe and well-tolerated method of virilising micropenis both prior to and during puberty in children with PAIS. Questions remain about long-term outcomes into adulthood, and efficacy in adults with prior lengthy exposure to high-dose testosterone.
The performance and morphology of PMMA/SAN/ABS blends
Authors: Chen Dan , Zhu Fupeng , Zhou Tingting , Zhang Mingyao , Zhang Huixuan 
Published: August 2015

Abstract
Acrylonitrile-butadiene-styrene (ABS) graft copolymers were synthesized via seeded emulsion polymerization techniques by grafting styrene (St) and acrylonitrile (AN) on polybutadiene (PB) particles. Poly (methyl methacrylate) (PMMA)/styrene-acrylonitrile (SAN)/ABS blends were prepared by melt blending ABS graft copolymers with PMMA and SAN resins. The properties, morphology and grafted chains behaviors of PMMA/SAN/ABS blends were investigated. The results showed that with the increase of the ratio of PMMA/SAN, the toughness of PMMA/SAN/ABS blends slightly decreased, the transmittance first increased and then decreased, and tensile strength was not dependent on the ratio of PMMA/SAN. The evolution of impact strength of the blends was similar with the tendency of grafted degree (GD) with the increase of cumene hydroperoxide (CHP) and tert-dodecyl mercaptan (TDDM). From transmission electron microscopy (TEM), it was found that ABS graft copolymers were uniformly dispersed in PMMA/SAN matrix.
Possible application of lead sulfide quantum dot in memory device
Authors: Sarma Sweety 
Published: August 2015

Abstract
Unipolar resistive switching behavior was observed in the as-fabricated Al/PVA/PbS QD/ITO device with R
OFF/R
ON ratio of 3.15×103 with retentivity for prolonged time and repeatability of hysteresis loops. Schottky emission mechanism dominates conduction mechanism in low-resistance state and high-resistance state of the device. Unipolar resistive switching behavior observed in the device is attributed to Coulomb blockade. The observed characteristic in the device points toward possible application of PbS QDs in memory device.
Studies on the structural, thermal, and dielectric properties of fabricated Nylon 6,9/CaCu3Ti4O12 nanocomposites
Authors: Ernest Ravindran Ramaswami Sachidanandan , Thomas Paramanandam , Renganathan Sahadevan 
Published: August 2015

AbstractNylon 6,9/CaCu3Ti4O12 (CCTO) nanocrystal composites with relatively high dielectric permittivity (220 at 100 Hz) were fabricated by melt mixing followed by hot pressing. The CCTO nanoceramics were synthesized using the oxalate precursor route, and the transmission electron microscopy studies exhibited that the crystallites are in the range of 20–200 nm. The nanocomposites were characterized using X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry, and impedance analyzer to study their structural, thermal, and dielectric properties. The introduction of CCTO nanoparticles into the matrix had influenced the thermal properties. The effective dielectric permittivity of the nanocomposite increased by the augmentation of CCTO content in the Nylon 6,9. Our experimental outcomes showed that the fixed dielectric permittivity of such two-phase composite was established above 200 when the CCTO concentration was closer to its percolation threshold. The room temperature dielectric permittivity as high as 220 at 100 Hz has been achieved when the CCTO content increased to 58 vol% in the polymer and this was increased to 3845 at 150°C. The increase in AC conductivity with the increase in the CCTO content in the polymer matrix supported the hopping of the charge carrier conduction mechanism.
Construction of polypropylene composite multifilaments filled with sodium perborate trihydrate-treated jute microparticles
Authors: Seki Yasemin , Akşit Aysun , Erdoğan Umit Halis 
Published: August 2015

AbstractPolypropylene composite multifilaments filled with surface-treated jute microparticles were successfully spun by melt spinning. To enhance the particle distribution, jute particleos were treated with 5–20% (w/v) aqueous solutions of sodium perborate trihydrate (SP). X-ray photoelectron spectroscopy (XPS) was used to confirm the surface treatment. XPS analysis indicated that the treatments improved the hydrophobicity of the jute by means of increasing the carbon/oxygen ratio of the surface; thus, the maximum increment was achieved after 10% (w/v) SP treatment. After determining the optimum SP concentration, the spinning of polypropylene composite multifilaments containing 0.3–1.4 wt% jute particles was employed. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) revealed the nucleating agent effect of the particles during crystallization in the filaments. The addition of fillers did not result in significant changes in the functional groups of polypropylene. The main output of this research is that polypropylene multifilaments incorporating 1.4 wt% jute particles presented the highest moisture absorption and hydrophilic character as determined by TGA, moisture content, and vertical wicking tests. It was concluded that particle content >0.3 wt% showed a tendency to agglomerate in the filament. Consequently, this study provided a new polypropylene filament having moisture absorbability performance, which can create potential applications in the textile industry.
Surface modification of diamond and its effect on the mechanical properties of diamond/epoxy composites
Authors: Wang Junsha , Wan Long , Hao Suye , Chen Jing 
Published: August 2015

AbstractThis work contributes to the extant literature by providing experimental results showing an improvement in the interfacial adhesion between diamond and epoxy resin by modifying the surface properties of diamond using KH550 silane coupling agent in (i) aqueous alcohol solvent (KH550:H2O:C2H5OH=1:1:8) and (ii) toluene solvent (KH550:C7H8=1:9), and the weight ratio of diamond to the above-mixed solution was 1:4. This in turn has been demonstrated to provide improved mechanical properties of the corresponding diamond/resin composite material synthesized from this study. The results obtained from this study were analyzed by using Fourier-transform infrared spectroscopy, X-ray photoelectron spectra, field emission scanning electron microscopy. and scanning electron microscopy. Besides these examinations, bend strength and hardness tests were also conducted, which lend further credence to this study. Finally, toluene solvent was observed to provide better adhesion at the interface of diamond and epoxy resin, and consequently, this resulted in improved bend strength of the corresponding diamond/resin composite by 14.3%.
The superior ductility of fine SiCp/Al2014 composites after extrusion
Authors: Zhang Long-Jiang , Qiu Feng , Wang Jin-Guo , Jiang Qi-Chuan 
Published: August 2015

AbstractThis paper studied the effect of extrusion on the microstructures and tensile properties of 4 vol.% 5 μm SiCp/Al2014 composites fabricated by stir casting. It has been found that extrusion could refine the α-Al grains, increase the distributed homogeneity of SiC particles, decrease the porosity of the composites, and improve the interfacial bonding strength. The tensile properties, especially the ductility, of the fine SiCp/Al2014 composites were significantly improved by extrusion. Compared with the as-cast 4 vol.% 5 μm SiCp/Al2014 composites, the yield strength, ultimate tensile strength, and fracture strain of the extruded composites increased from 242 MPa, 367 MPa, and 3.8% to 304 MPa, 530 MPa, and 11.2%, which were increased by 25.6%, 44.4%, and 195%, respectively.
The effect of hydroxyapatite reinforcement and preparation methods on the structure and mechanical properties of Mg-HA composites
Authors: Kubásek Jiří , Vojtěch Dalibor , Maixner Jaroslav , Dvorský Drahomír 
Published: August 2015

AbstractMagnesium composites with suitable reinforcement such as hydroxyapatite (HA) or tricalcium phosphate can offer improved mechanical and also biological properties, which points to them as possible candidates in medicine as biodegradable materials. The present paper deals with structure and mechanical properties of Mg-xHA (x=0, 2, 5, 10 wt.%) composites prepared from coarse Mg powder and nanoparticles of HA. Different preparation methods (milling, stamping, extrusion, spark plasma sintering) and process temperatures are combined to avoid the creation of agglomerates in structure and to reach improved mechanical properties. Hardness, compressive and three-point bending tests are performed for material characterization. On the basis of these results, authors confirm the clear effect of the volume fraction of reinforcement in composite on final properties, but authors also show even stronger effect of the preparation method on the mechanical properties of Mg-HA composites. Measured properties of selected final products, which reached about 500 MPa in ultimate compressive strength and flexural strength, slightly exceed values reported in literature and fulfil general requirements on mechanical properties for applications in medicine such as bone fixations.
Effects of multiwalled carbon nanotube mass fraction on microstructures and electrical resistivity of polycarbonate-based conductive composites
Authors: Wang Lijun , Qiu Jianhui , Sakai Eiichi , Wei Xiaowei 
Published: August 2015

AbstractFour polycarbonate (PC)-based composites with 1, 2.5, 5, and 10 wt.% raw multiwalled carbon nanotubes (MWCNTs) were prepared using extrusion process followed by injection molding. The effects of MWCNT mass fraction (W) on composite mechanical, thermal, and electrical properties were examined. The mechanical properties suggested that the tensile strength of the composites with 2.5 wt.% raw MWCNTs exhibited an increase of ~5 MPa (~8.6%) at a particular injection condition. Besides, thermogravimetric analysis (TGA) indicated that the addition of 1 wt.% MWCNTs improved the thermal stability of PC by approximately 100°C. Aside from mechanical and thermal properties, the electrical resistivity of the 5 wt.% raw MWCNT composites was considerably decreased to 102 Ω/sq, a value approximately 15 orders of magnitude lower than that of PC. Furthermore, the effects of injection conditions on composite electrical properties were emphatically discussed, and it was found that electrical resistivity was sensitive to injection temperature and speed. Low electrical resistivity was achieved at high injection temperature and low injection speed. Scanning electron microscopy images revealed that electrical resistivity relied on the microstructure of the prepared MWCNT/PC composites.
Challenges in nanometrology: high
precision measurement of position and size
Authors: Bosse Harald , Bodermann Bernd , Dai Gaoliang , Flügge Jens , Frase Carl G. , Groß Hermann , Häßler-Grohne Wolfgang , Köchert Paul , Köning Rainer , Scholze Frank , Weichert Christoph 
Published: August 2015

Abstract
Recent developments of the PTB in high precision position and size metrology
as support for different nanotechnology applications are
described. Measurement uncertainties of
1–2 nm for 1D-position of
graduation lines on photomasks, or on line scales and
incremental encoders of about 300 mm length have been
achieved. The measurement of the size of nanoscale
features represents additional challenges, because the
location of opposite feature edges needs to be precisely
determined. Different feature size or CD metrology
techniques are applied at PTB, including a recent
approach which uses transmission electron microscopy in the traceability
chain of AFM CD measurements. The estimated uncertainty for CD measurements on high quality Si line structures is
U
95% = 1.6 nm.
Analyse, physikbasierte Modellierung und
Systemidentifikation von Waagen nach dem Prinzip der elektromagnetischen
Kraftkompensation (EMK)
Authors: Amthor Arvid , Kaiser Irina , Rogge Norbert , Weiß Heiko 
Published: August 2015

Zusammenfassung
Gegenstand dieses Beitrages ist die präzise physikalisch
motivierte Modellierung einer EMK-Waage mit dem Ziel des späteren
Reglerentwurfes.
Die aus dem Modell resultierende Kenntnis der statischen und
dynamischen Parameter des Systems erlaubt es, zusätzliche
Informationen (wie z. B. Geschwindigkeit und Beschleunigung der
Hebelauslenkung, Änderung der Masse) über den Systemzustand
aus den messbaren Größen zu gewinnen. Im Zuge der
Systemidentifikation wurde die Reaktion des Systems auf
unterschiedliche Eingangssignale untersucht. Neben der Anregung mit
Hilfe des Magnetsystems der Waage wurde ein zweiter Magnet auf der
Waagschale platziert, um das System auch dort anregen zu
können. Diese Messungen ermöglichen die Modellierung des
Zusammenhangs zwischen der Hebelauslenkung und der Kraft auf der
Waagschale. Im Anwendungsfall ist diese Kraft unbekannt und die zu
bestimmende Größe. Daher ist die Kenntnis des
Übertragungsverhaltens zwischen diesen Größen sehr
nützlich, um die Kraft, welche auf die Waagschale wirkt,
möglichst schnell zu bestimmen. Ausgehend von den detaillierten
experimentellen Untersuchungen wurde ein Zwei-Balken-Modell erstellt,
welches das Systemverhalten der EMK-Waage nachbildet. Dieses Modell
erreichte trotz seiner Einfachheit eine relativ hohe
Übereinstimmung mit dem beobachteten Verhalten. Für die
Untersuchungen wurde ein FPGA-basiertes Signalverarbeitungssystem
verwendet, welches die synchrone Datenausgabe und Datenaufnahme bei
hohen Abtastraten erlaubt.
The Unity of Life and the Kingdom of God.
Authors: Ristiniemi Jari 
Published: August 2015

AbstractDuring the last decade of his life, Tillich saw the possibility of constructing ethics and theology from below in his multidimensional view of the unity of life. His view brings together the late Plato and Aristotle: essences are potentials which the historical process actualizes and enriches both for all beings and for God as the ground of being. In his eschatology, his differential monism avoids the problems of strict teleological finalism and of a dualism between living beings and God. For Tillich, there is no unbridgeable gap between immanence and transcendence but a mutual bond of connection, interdependence and interaction. In love, the positive in creation and in history is brought into the Kingdom of God and fulfills justice for all beings.
Die Ethik-Konzeption Paul Tillichs.
Authors: Neugebauer Matthias 
Published: August 2015

AbstractThis article is an attempt to reconstruct the inherent ethical approach of Tillich’s theology. In the process it will show that Tillich’s ethic strives to be a timely, consistent formulation of the Christian paradigm of charity. This leads to the moral imperative that one becomes a person in the midst of a community of persons. The presuppositions and genesis of this central ethical insight are traced historically in his work
Paul Tillich – ein „religiöser Atheist“?
Authors: Schüßler Werner 
Published: August 2015

AbstractThe title of the recent work by Ronald Dworkin, “Religion without God” (2013), reveals the basic thesis of the book that religion is something deeper than God. For his argument, Dworkin refers to Paul Tillich, among others. This article shows that Dworkin completely missed Tillich’s meaning and that his presentation is unfair to both modern theology and the classical metaphysical tradition. He reinterprets the concept of religion in a way that makes no sense
Using Targeted Resequencing for Identification of Candidate Genes and SNPs for a QTL Affecting the pH Value of Chicken Meat
Authors: Li Xidan , Liu Xiaodong , Nadaf Javad , Le Bihan-Duval Elisabeth , Berri Cécile , Dunn Ian , Talbot Richard , De Koning Dirk-Jan 
Published: August 2015

Abstract
Using targeted genetical genomics, a quantitative trait locus (QTL) affecting the initial postmortem pH value of chicken breast muscle (Pectoralis major) on chromosome 1 (GGA1) recently was fine-mapped. Thirteen genes were present in the QTL region of approximately 1 Mb. In this study, 10 birds that were inferred to be homozygous for either the high (QQ) or low (qq) QTL allele were selected for resequencing. After enrichment for 1 Mb around the QTL region, &gt;500 × coverage for the QTL region in each of the 10 birds was obtained. In total 5056 single-nucleotide polymorphisms (SNPs) were identified for which the genotypes were consistent with one of the QTL genotypes. We used custom tools to identify putative causal mutations in the mapped QTL region from these SNPs. Four nonsynonymous SNPs differentiating the two QTL genotype groups were identified within four local genes (PRDX4, EIF2S3, PCYT1B, and E1BTD2). Although these are likely candidate SNPs to explain the QTL effect, 54 additional consensus SNPs were detected within gene-related regions (untranslated regions, splicing sites CpG island, and promoter regions) for the QQ birds and 71 for the qq birds. These could also play a role explaining the observed QTL effect. The results provide an important step for prioritizing among a large amount of candidate mutations and significantly contribute to the understanding of the genetic mechanisms affecting the initial postmortem pH value of chicken muscle.
EXISTEM PRÁTICAS DE CONTABILIDADE CRIATIVA NA PETROBRAS? Uma análise de conteúdo nos principais meios de comunicação
Authors: PEREIRA BORGES MANUELLA DE PIEMONTE , MARTINS VIDIGAL FERNANDES 
Published: August 2015

RESUMO
O presente estudo teve como objetivo identificar se houve Contabilidade Criativa nas contas da Petrobras no ano de 2013, frente ao resultado econômico financeiro negativo de 2012. Para isso, foi feito uma análise de conteúdo de Bardin (2011) nos principais meios de comunicação dos países que apresentam qualquer relação de investimento ou produção com a Petrobras, em confronto com as informações que a empresa gerou em seus relatórios financeiros. Foram analisados 258 jornais e revistas dos cinco continentes, em um período de 2012 à 2014. Esse período foi determinado pelo fato de que no ano de 2012 a empresa obteve um prejuízo no segundo trimestre, com isso no ano subsequente, ela declarou um lucro, ocasionado pela mudança do método de contabilização da dívida, com a utilização da Contabilidade de Hedge. Essa mudança no critério de contabilização da dívida foi uma opção adotada pela empresa para reverter o prejuízo ocasionado em 2012, prejuízo esse refletido pela desvalorização do real frente ao dólar.De acordo com essa informação gerada pela análise de conteúdo foi possível visualizar o motivo e a causa que levou a empresa a adotar esse método. Para os estudiosos e pesquisadores desse tema de pesquisa, os motivos e a causa que levaram a empresa a optar por essa mudança na contabilização da dívida foi o de demonstrar um melhor resultado financeiro de forma intencional, mesmo estando previsto em lei, pode ser considerado como Contabilidade Criativa.
La importancia de la salud bucal reflejada en la salud general de los pacientes pediátricos con trastornos sistémicos
Authors: Rosas-Vargas Rosaura , De la Teja-Ángeles Eduardo , López-Ibarra Marlene , Durán-Gutiérrez Américo 
Published: August 2015

<p>El concepto de salud de la Organización Mundial de la Salud, vigente desde hace varias décadas, refiere: “Estado de completo bienestar físico, mental y social y no solamente la ausencia de enfermedad”; por supuesto incluyendo a la salud bucal, reflejada de manera importante en el estado de salud general. Y no estamos hablando sólo de dientes sino de órganos dentarios, componentes de un sistema estomatognático (huesos, encías, nervios, vasos, músculos, mucosa, etcétera) con fisiología propia. En un estado patológico reflejan cambios significativos en la integridad física, mental y social del individuo considerado<br />como aparentemente sano.</p>