bluuebunny/crossref_metadata_2025_split huggingface dataset:
Glucose tolerance in singleton, twin and triplet pregnancies
Authors: Weissman Amir , Drugan Arie 
Published: September 2016

Abstract

Background:
Data regarding the effects of multifetal pregnancy on the incidence of gestational diabetes mellitus (GDM) are inconsistent and even conflicting. Twin pregnancies have been associated with no increase, a marginal increase or a higher incidence of gestational diabetes. In triplet pregnancies, these effects have not been investigated yet.

Objectives:
To analyze the results of the glucose challenge and tolerance tests in singleton, twin and triplet pregnancies.

Study design:
A retrospective database analysis of pregnant women with singletons, twins or triplets who had complete results of the 50 g glucose challenge test (GCT) and the 100 g oral glucose tolerance test (OGTT). The cohort included 12,382 singletons, 515 twins and 39 triplets.

Results:
There were significantly higher rates of abnormal GCTs in twins and triplets compared to singletons (45.4% and 33.3%, respectively vs. 13.7%, P<0.001 and P<0.05). Significantly higher rates of gestational diabetes in twins (10.1% vs. 2.9 %, P<0.001) and triplets (12.8% vs. 2.9%, P<0.05) compared to singletons were observed. Mean glucose levels after the GCT were higher in twins compared to singletons, and even more in triplets (108 mg/dL in singletons vs. 120 mg/dL in twins vs. 129 mg/dL in triplets, P<0.001).

Conclusions:
Glucose intolerance is aggravated in multifetal pregnancies. The likelihood of an abnormal GCT and gestational diabetes is higher in twins and triplets compared to singletons.
Isolation and evaluation of biocontrol agents in controlling anthracnose disease of mango in Thailand
Authors: Rungjindamai Nattawut 
Published: September 2016

Abstract
The agricultural based economy is a core business in Thailand and food export is one of the main sources of income for the Thai population. However, pesticides are overused and misused. As a result there is an urgent need to reduce the use of synthetic chemicals. Biological control offers an alternative to the use of pesticides. Mango (Mangifera indica L.) is widely planted in Thailand and is one of the major cash crops for international export. However, mango suffers from various diseases especially anthracnose, a fungal disease caused by Colletotrichum gloeosporioides. One hundred and twelve isolates of epiphytic microbes were isolated from healthy leaves and fruits of mangoes; this included 93 and 19 isolates of epiphytic bacteria and yeasts, respectively. They were screened for bioactivity against a pathogenic strain of C. gloeosporioides isolated from diseased mangoes using a dual culture technique. Out of 112 isolates, eight isolates exhibited at least 60% inhibition. These isolates were further screened for their inhibition on mango using fruit inoculation. Two isolates reduced the lesion sizes caused by C. gloeosporioides compared to control treatment. These two isolates, based on phenotypical and biochemical tests, were identified as Bacillus sp. MB61 and Bacillus sp. LB72.
Structural determination of Co/TiO2 nanocomposite: XRD technique and simulation analysis
Authors: Mostaghni F. , Abed Y. 
Published: September 2016

AbstractSynthesis and complex theoretical and experimental studies of Co/TiO2 anatase have been reported. The preparation of Co/TiO2 was carried out by sol-gel method. Distribution of cations among the two tetrahedral and octahedral sites was estimated by analyzing the powder X-ray diffraction patterns by employing Rietveld refinement technique, and the results revealed the existence of tetragonal structure. Band structure and density of states calculations were performed using the first-principles methods. The structural and electronic properties of Co/TiO2 were calculated in the general gradient approximation (GGA). An additional comparison with pure TiO2 anatase allowed us to clarify cobalt doping effect on the electronic structure and the band gap. The band gap of Co/TiO2 was decreased by broadening the valence band as a result of the overlap among Co 3d, Ti 3d, and O 2p states, which made it respond better to visible and solar light.
Effect of TEA on characteristics of CdS/PbS thin film solar cells prepared by CBD
Authors: Sattarian H. , Tohidi T. , Rahmatallahpur SH. 
Published: September 2016

AbstractIn this study, a solar cell with a glass/ITO/CdS/PbS/Al structure was constructed. Both window (CdS) and absorption (PbS) layers were deposited by chemical bath deposition (CBD) method. The CdS window layer was deposited on ITO-glass. The PbS nanocrystalline thin film was prepared with and without triethanolamine on CdS films at bath temperature of 25 °C. CdS and PbS nanocrystals were identified using XRD and SEM. The cells are photosensitive in a large spectral range (at visible and near infrared regions). The cell with absorbing layer obtained from the bath without TEA has higher efficiency with the following parameters: the open circuit voltage (Voc) is 275 mV, short circuit current (Jsc) is 12.24 mA/cm2, maximum voltage (Vmax) is 165 mV and maximum current (Jmax) is 7.11 mA/cm2 with the efficiency η = 1.31 %, fill factor FF is 32 % under the illumination intensity of 90 mW/cm2. The cells have an area of 0.15 cm2.
Effect of cerium on structural and optical properties of ZnO aerogel synthesized in supercritical methanol
Authors: Meddouri M. , Hammiche L. , Slimi O. , Djouadi D. , Chelouche A. 
Published: September 2016

AbstractPure ZnO and Ce-doped (5 at.%) ZnO aerogels were prepared by dissociation of dihydrate zinc acetate and cerium nitrate in methanol, followed by drying in supercritical conditions of the solvent. The concentration of zinc acetate solution and the atomic ratio Ce/Zn were fixed at 0.2 mol/L and 0.05 mol/L, respectively. XRD results showed a hexagonal wurtzite structure of ZnO aerogel crystallites and a formation of a separate second phase of ceria cubic phase with fluorite structure and 7.4 nm in size. The introduction of cerium in the solution had a negative effect on the aerogel crystalline quality. The crystallites size was found to be 16 nm in pure ZnO and 27 nm in Ce-doped ZnO aerogels. The grains of Ce-doped ZnO aerogel had torus shaped morphology with hollow centers, but those of pure ZnO were flattened semispheres. The calculated values of different structural parameters showed that cerium ions introduced into the ZnO lattice occupied interstitial sites and Zn ions substituted Ce ones in ceria lattice during the formation process. FT-IR and UV-Vis absorption spectra have not revealed any particularities due to the presence of cerium atoms in ZnO, indicating that Ce (5 at.%) doping of ZnO crystallites synthesized in supercritical methanol did not strongly affect the optical gap of the semiconductor. Micro-Raman studies confirmed the formation of cubic fluorite structure ceria in ZnO aerogel and showed that Raman active modes of ZnO are amplified with the presence of ceria.
Crystal structure of bis(1-ethyl-6-fluoro-4-oxido-7-(piperazin-1-ium-1-yl)-1,8-naphthyridin-1-ium-3-carboxylate-κ2
O,O′)copper(II) benzene-1, 4-dicarboxylate dihydrate, C38H42F2CuN8O12
Authors: Cui Kuo , Wang Liang-Liang , Zhang Wen-Wei , Liu Fu-Xin , Zhang Wen-Jun , Fan Zhuo-Wen 
Published: September 2016

Abstract
C38H42F2CuN8O12, triclinic, P1̅ (no. 2), a = 5.4709(2) Å, b = 10.4100(4) Å, c = 17.3373(6) Å, α = 95.014(2)°, β = 92.041(2)°, γ = 103.223(2)°, V = 955.96(6) Å3, Z = 1, R
gt(F) = 0.0347, wR
ref(F
2) = 0.1125, T = 296 K.
Business Model Innovation: Insights from a Multiple Case Study of Slovenian SMEs
Authors: Marolt Marjeta , Lenart Gregor , Maletič Damjan , Borštnar Mirjana Kljajić , Pucihar Andreja 
Published: September 2016

Abstract
Background and Purpose: Business model innovation (BMI) has become increasingly important, especially in the fast changing business environment. While large enterprises approach these changes systematically, small and medium sized enterprises (SMEs) are left to their own resourcefulness. For the purpose of developing dedicated methods and tools to support different SMEs in addressing these challenges, we have conducted a multiple case study to gain insights into factors that drive SMEs to innovate their BM, how they approach BMI and what changes they made to their BM.
Design/Methodology/Approach: First the framework of analysis was developed based on BMI research frameworks identified in literature review. Then the multiple case studies were conducted following the case study protocol developed by Envision project.
Results: Based on the proposed framework the results of four Slovene SME cases revealed differences between enterprises regarding the drivers behind BMI and changes in usage of the different BMI elements.
Conclusion: Overall, the results suggest all four SMEs, coming from different sectors, are facing BMI challenges without systematically addressing it and without using any dedicated BM ontologies or tools.
Effect of gas counter pressure on shrinkage and residual stress for injection molding process
Authors: Jong Wen-Ren , Hwang Shyh-Shin , Tsai Ming-Chieh , Wu Chien-Chou , Kao Chi-Hung , Huang Yan-Mao 
Published: September 2016

Abstract
Plastic products are common in contemporary daily lives. In the plastics industry, the injection molding process is advantageous for features such as mass production and stable quality. The problem, however, is that the melt will be affected by the residual stress and shrinkage generated in the process of filling and cooling; hence, defects such as warping, deformation, and sink marks will occur. In order to reduce product deformation and shrinkage during the process of molding, the screw of the injection molding machine will start the packing stage when filling is completed, which continuously pushes the melt into the cavity, thus making up for product shrinkage and improving their appearance, quality, and strength. If the packing pressure is too high, however, the internal residual stress will increase accordingly. This study set out to apply gas counter pressure (GCP) in the injection molding process. By importing gas through the ends of the cavity, the melt was exposed to a melt front pressure, which, together with the packing pressure from the screw, is supposed to reduce product shrinkage. The aim was to investigate the impacts of GCP on the process parameters via the changes in machine feedback data, such as pressure and the remaining injection resin. This study also used a relatively thin plate-shaped product and measurements, such as the photoelastic effect and luminance meter, to probe into the impacts of GCP on product residual stress, while a relatively thick paper-clip-shaped product was used to see the impacts of GCP on shrinkage in thick parts. According to the experimental results, the addition of GCP resulted in increased filling volume, improvement of product weight and stability, and effective reduction of section shrinkage, which was most obvious at the point closest to the gas entrance. The shrinkage of the sections parallel and vertical to the flow direction was proved to be reduced by 32% and 16%, respectively. Moreover, observations made via the polarizing stress viewer and luminance meter showed that the internal residual stress of a product could be effectively reduced by a proper amount of GCP.
Evaluation of excess life time cancer risk due to natural radioactivity of the Lignite samples of the Nichahoma, lignite belt, North Kashmir, India
Authors: Ashraf Mudasir , Anu Radha C. , Ahmad Shakeel , Masood Sajad , Ahmad Dar Rayees , Ramasubramanian V. 
Published: September 2016

Abstract
Naturally occurring radionuclides of the 226Ra, 232Th, and 40K present in the lignite samples was measured by using a low-background Pb-shielded gamma spectroscopic counting assembly utilizing NaI(Tl) detector for the measurement and to evaluation the radiation hazard indices and excess life time cancer risk. The average values of specific activity concentrations in the investigated lignite samples was found to be 45.36 Bq kg−1 for 226Ra, 21.42 Bq kg−1 for 232Th, 40.51 Bq kg−1 for 40K and 79.11 Bq kg−1 for Raeq respectively. The average value excess life time cancer risk was found to be relatively higher than the world average. Moreover, the correlation analysis shows the strong dependence of excess lifetime cancer risk on measured dose and the radium equivalent activity.
Characteristic analysis of carbon nanotube thread embedded into three-dimensional braided composite under bending load
Authors: Guo Jian-Min , Gong Li-Ying , Liu Yan 
Published: September 2016

Abstract
In this paper, we introduce an embedded method of carbon nanotube threads (CNTs) in three-dimensional (3-D) braided composite material preform. We investigate the strain sensing properties of CNTs embedded into 3-D braided composites using three-point bend test under different loads. The resistance change rate properties of CNTs in composites under tensile and compressive loading are analyzed in detail. Experimental results show that in the three-point bending process, the resistance of CNTs exponentially increases with the increase of strain until the specimen loading to fracture. Moreover, the residual resistance of CNTs has been observed after unloading. Our experiments have shown that structure health status of 3-D braided composites can be sensed and monitored in real-time using CNTs sensor under bending load. This study provides an experimental basis to lay the foundation for the structural health monitoring system construction of 3-D braided composites.
Predicting the thermal conductivity of polypropylene-multiwall carbon nanotubes using the Krenchel model
Authors: Almasri Atheer M. 
Published: September 2016

Abstract
The thermal conductivity of particulate composite models is well documented in the literature. This paper attempts to fit the experimental data for the thermal conductivity of polymer nanocomposites to a three-phase Krenchel model. The use of this model is applicable for structures that consist of a polymer matrix, a nanofiller, and an interfacial layer around the nanoparticles. The effect of Kapitza’s thermal resistance is implemented in the model along with the assumption that the nanofillers are cylindrical and well connected to each other; however, no parameters related to any type of dispersants or the dispersion techniques are stated in the model. The results of the three-phase Krenchel model were validated using the experimental data of thermal conductivity of multiwall carbon nanotubes embedded in polypropylene matrix nanocomposites. It was found that the model was in good agreement with the experimental thermal conductivity data. Moreover, the results from the model showed that the filler geometrical packing factor was 0.75; consequently, the carbon nanotubes formed bundles of several cylindrical tubes. The length of the interface between the nanotubes and the polymer matrix was around 1 Å. Finally, the thermal conductivity of the composite bundle cylinder was 21.63 W/(m K).
Evaluation of glass-fiber grafted by epoxide-terminated hyperbranched polymer on the effect of mechanical characterization of epoxy composites
Authors: Li Shuiping , Li Yanbo , Zhu Huajun , Lin Qing , Hou Haijun , Lv Tingting , Wu Qisheng , Cui Chong 
Published: September 2016

Abstract
In this study, glass-fiber, grafted by epoxide-terminated hyperbranched polymer (GF-HBPE), was incorporated into epoxy resins for reinforcement purpose. The effects of GF-HBPE content on mechanical properties of the resulting epoxy-based composites, such as tensile strength, percentage elongation at break, flexural strength, and impact strength, were investigated. The experimental results revealed that GF-HBPE substantially outperformed impact resistance in both tensile and flexural tests. For instance, the tensile strength, percentage elongation at break, flexural strength, and impact strength of the epoxy composite with 1 wt% GF-HBPE increase by about 23.6%, 125%, 26%, and 74.5%, respectively, compared to the unmodified epoxy thermoset.
Zika: an old virus with a new face
Authors: Avšic Županc Tatjana , Petrovec Miroslav 
Published: September 2016

Abstract
Zika virus is a mosquito-borne flavivirus that represents a public health emergency at the ongoing epidemic. This obscure virus was limited to sporadic cases in Africa and Asia, until the emergence of Zika virus in Brazil in 2015, when it rapidly spread throughout the Americas. Most Zika virus infections are subclinical or characterized by mild febrile illness. However, neurological complications, including Guillain-Barré syndrome in adults, and congenital anomalies, including microcephaly in babies born to infected mothers, raised a grave concern. Currently, there is no specific antiviral treatment or vaccine available for Zika virus infection. Thus, international public health response is primarily focused on preventing infection, particularly in pregnant women, and on providing up-to-date recommendations to reduce the risk of non-vector transmission of Zika virus.
Quasi-Exact Solutions for Generalised Interquark Interactions in a Two-Body Semi-Relativistic Framework
Authors: Zarrinkamar S. 
Published: September 2016

Abstract
We consider the generalised Cornell, Song-Lin and Richardson interquark interactions in a semi-relativistic two-body basis which originates from the spinless Salpeter equation and is valid for heavy quark limit. In our calculations, due to the complicated nature of arising differential equations, we use the quasi-exact ansatz technique and thereby report the ground-state solution.
B(C6F5)3-guided cyclotrimerization-rearrangement of phenylacetylene. Evidence of the (C6F5)3B−–C(H)=C+Ph intermediate in a 1,1-carboboration reaction
Authors: Nie Wanli , Sun Guofeng , Tian Chong , Borzov Maxim V. 
Published: September 2016

Abstract
In presence of 2,2,6,6-tetramethylpiperidinium ([TMPH]+) chlorotris(pentafluorophenyl)borate ([TMPH]+[ClB(C6F5)3]−, 3), phenylacetylene undergoes an unusual cyclotrimerization-rearrangement leading to tris(pentafluorophenyl)(3,4,5-triphenylphenyl)borate anion (1) as a minor product which can be isolated and purified in a form of salts [1·(TMPH)

n

·Cl
(
n

–1)] (n=3 or 5). A variable temperature and concentration NMR spectroscopy study of 3 in CDCl3 unambiguously demonstrated its ability to liberate free B(C6F5)3, which initiates cyclotrimerization and guides rearrangements towards formation of the tetraarylborate anion 1. For the previously studied “spectator” reaction between phenylacetylene and B(C6F5)3 in CDCl3, 1H, 19F, and 11B NMR-spectral evidence of the (C6F5)3B−–C(H)=C+Ph zwitterionic intermediate of the 1,1-carboboration reaction has been demonstrated. The crystal structures of [1·(TMPH)
3
·Cl
2], the salt 3, and a 1:1 adduct of 1,3,5-tris(4-fluorophenyl)benzene and 2,4,6-tris(pentafluorophenyl)-1,3,5,2,4,6-trioxatriborinane (2) have been established by X-ray diffraction analysis.
Environmentally benign synthesis of methyl 6-amino-5-cyano-4-aryl-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates using CeO2 nanoparticles as a reusable and robust catalyst
Authors: Safaei-Ghomi Javad , Asgari-Kheirabadi Mehrnoosh , Shahbazi-Alavi Hossein 
Published: September 2016

Abstract
In this work, we report the synthesis and characterization of CeO2 nanoparticles as an efficient catalyst for the preparation of methyl 6-amino-5-cyano-4-aryl-2,4-dihydropyrano[2,3-c]pyrazole-3-carboxylates via one-pot four-component condensation reaction of dimethyl acetylenedicarboxylate, hydrazine hydrate, malononitrile, and aldehydes in aqueous medium. The use of a non-hazardous organic solvent, easy recovery of the catalyst, compatibility with various functional groups, and high yield of the products make the protocol attractive, greener, and economic.
Studies of Type 301 Stainless Steel Columns
Authors: Dubuc Julien , Krivobok V. N. , Welter Georges 
Published: September 2016

The study of the behavior in compression of structural elements made of type 301 austenitic stainless steel has been carried out. Buckling tests on columns of this material have shown that experimental values for slenderness ratios above about 40 agree pretty well and are only slightly higher than those predicted by Watter and Lincoln (I).4 For slenderness ratio values below about 40, buckling of the wide faces, rather than of the column as a whole, occurred for stresses near to those calculated by Watter and Lincoln for the particular type of cross-section used in the present work.
“Creep” (that is, straining under constant load at room temperature) or cycling the applied load has no effect on the final stress-strain compression curve: that is to say, the curve obtained in the above manner is identical with the curve that would have been obtained had there been no creep or cycling. However, the stress-strain relationship in the column after previous stressing and then relieving the stress to zero is entirely different from the original relationship. In the instance of the second loading, the ratio of strain to stress becomes linear almost up to the previously applied stress.
The beneficial effects of heat treatment at relatively low temperatures on the stress-strain relationship in compression have been uncovered.
Dinámicas territoriales del patrón de acumulación neoliberal colombiano: el caso del desplazamiento forzado.
Authors: Mejia Baldion Alejandro Sebastian 
Published: September 2016

<p>El conflicto armado es la explicación recurrente y exclusiva del desplazamiento interno de población en Colombia, obviándose generalmente los efectos de los proyectos de desarrollo sobre este fenómeno. Dado el sostenimiento de esta problemática a pesar de pasados y eventuales acuerdos de paz, en este artículo se pretende analizar como variable explicativa las dinámicas territoriales del patrón de acumulación neoliberal en Colombia, sustentado este último en la producción minero-energética, la inversión extranjera y el predominio del sistema financiero. Complementariamente, se examinan las implicaciones de dicho patrón acumulativo en la segregación y precarización de las alternativas de vivienda para la población desplazada en las ciudades receptoras de esta población, específicamente en la ciudad de Bogotá. A partir de lo anterior se encuentra que el patrón de acumulación neoliberal colombiano ha sido un efecto victimizador y revictimizador de población desplazada; caracterización bajo la cual se proponen elementos de discusión en torno al ordenamiento territorial en un escenario de construcción de paz.</p>
Seminario conflictos territoriales y acuerdos de paz en Colombia
Authors: Vargas-Fonseca Alan David 
Published: September 2016

<p>Este documento recopila las relatorías de los seis paneles que compusieron el seminario Conflictos territoriales y acuerdos de paz en Colombia: los impactos en el ordenamiento territorial como resultado de los acuerdo de negociación con la insurgencia, realizado los días 25 y 26 de febrero de 2016 en la Universidad Nacional de Colombia. El objetivo del documento es establecer puntos en común respecto de todas las dimensiones desde las cuales fue analizada la relación entre los procesos de negociación para la paz, el ordenamiento territorial colombiano y los conflictos que de ello se derivan.</p>