bluuebunny/crossref_metadata_2025_split huggingface dataset:
Freeform surface descriptions. Part I: Mathematical representations
Authors: Broemel Anika , Lippmann Uwe , Gross Herbert 
Published: July 2017

AbstractOptical systems can benefit strongly from freeform surfaces; however, the choice of the right surface representation is not trivial and many aspects must be considered. In this work, we discuss the general approach classical globally defined representations, as well as the basic mathematics and properties of the most commonly used descriptions and present a new description developed by us for describing freeform surfaces.
Improving the thermoelectric power factor of PEDOT:PSS films by a simple two-step post-treatment method
Authors: Kim Soo-Kwan , Mo Jun-Hyun , Kim Jae-Yeop , Jang Kwang-Suk 
Published: July 2017

AbstractThis study demonstrates a simple two-step post-treatment method for improving the thermoelectric power factor of low-cost poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) films. The dry re-dispersible PEDOT:PSS pellets are cost-effective, however, they exhibit extremely low thermoelectric performance. On treating with ethylene glycol followed by hydrazine, the power factor of the PEDOT:PSS films increased from 0.0632±0.0097 μW m−1K−2 to 13.3±1.5 μW m−1K−2. The enhancement might be attributed to the effective removal of the free, non-complexed PSS chains and fine control of the oxidation level of PEDOT by the two-step post-treatment.
One Good Decision: The Policy Argument for Extended Release Naltrexone in the Criminal Justice Setting
Authors: Koppel Stephen , Skolnick Phil 
Published: July 2017

AbstractCriminal-justice (CJ) offenders with opioid-use disorders (OUDs) are at increased risk for recidivism and overdose (Durose et al. 2014, “Recidivism of Prisoners Released in 30 States in 2005: Patterns from 2005 to 2010.”
CytoMCS: A Multiple Maximum Common Subgraph Detection Tool for Cytoscape
Authors: Larsen Simon J. , Baumbach Jan 
Published: July 2017

AbstractComparative analysis of biological networks is a major problem in computational integrative systems biology. By computing the maximum common edge subgraph between a set of networks, one is able to detect conserved substructures between them and quantify their topological similarity. To aid such analyses we have developed CytoMCS, a Cytoscape app for computing inexact solutions to the maximum common edge subgraph problem for two or more graphs. Our algorithm uses an iterative local search heuristic for computing conserved subgraphs, optimizing a squared edge conservation score that is able to detect not only fully conserved edges but also partially conserved edges. It can be applied to any set of directed or undirected, simple graphs loaded as networks into Cytoscape, e.g. protein-protein interaction networks or gene regulatory networks. CytoMCS is available as a Cytoscape app at http://apps.cytoscape.org/apps/cytomcs.
A Generalized Approach for Measuring Relationships Among Genes
Authors: Wang Lijun , Ahsan Md. Asif , Chen Ming 
Published: July 2017

AbstractSeveral methods for identifying relationships among pairs of genes have been developed. In this article, we present a generalized approach for measuring relationships between any pairs of genes, which is based on statistical prediction. We derive two particular versions of the generalized approach, least squares estimation (LSE) and nearest neighbors prediction (NNP). According to mathematical proof, LSE is equivalent to the methods based on correlation; and NNP is approximate to one popular method called the maximal information coefficient (MIC) according to the performances in simulations and real dataset. Moreover, the approach based on statistical prediction can be extended from two-genes relationships to multi-genes relationships. This application would help to identify relationships among multi-genes.
An Image Authentication Algorithm Using Combined Approach of Watermarking and Vector Quantization
Authors: Tiwari Archana , Sharma Manisha 
Published: July 2017

Abstract
This paper presents a two-stage watermarking technique for image authentication adapting the advantages of vector quantization (VQ). In the proposed algorithm, robust watermark and semifragile watermark are embedded independently in two successive stages. Robust watermark and VQ enhance the security of the system by providing double protection to the designed system, while semifragile watermark helps in authenticating the received image. Watermarks of varying sizes are embedded in the cover image, and their performance is measured in terms of peak signal-to-noise ratio (PSNR), weighted PSNR, and bit error rate. A threshold-based approach is suggested for identification of attacks as acceptable or malicious. The experimental results demonstrate the capabilities of the method in classifying attacks and correctly locating the tampered area. It is possible to detect and determine tampering with very high sensitivity. The present scheme outperforms previous algorithms in terms of imperceptibility, attack classification criteria, robustness feature, and tamper detection feature.
Interval-Valued Intuitionistic Fuzzy Confidence Intervals
Authors: Kahraman Cengiz , Oztaysi Basar , Cevik Onar Sezi 
Published: July 2017

Abstract
Confidence intervals are useful tools for statistical decision-making purposes. In case of incomplete and vague data, fuzzy confidence intervals can be used for decision making under uncertainty. In this paper, we develop interval-valued intuitionistic fuzzy (IVIF) confidence intervals for population mean, population proportion, differences in means of two populations, and differences in proportions of two populations. The developed IVIF intervals can be used in cases of both finite and infinite population sizes. The developed fuzzy confidence intervals are equivalent decision-making tools to fuzzy hypothesis tests. We apply the proposed confidence intervals to the differences in the mean lives and failure proportions of two types of radiators used in automobiles, and a sensitivity analysis is given to check the robustness of the decisions.
Nonlinear transient and thermal analysis of functionally graded shells using a seven-parameter shell finite element
Authors: Gutierrez Rivera Miguel , Reddy J. N. 
Published: July 2017

AbstractIn this paper the thermo-mechanical response of functionally graded plates and shells is studied using a continuum shell finite element model with high-order spectral/hp basis functions. The shell element is based on the seven-parameter first-order shear deformation theory, and it does not utilize reduced integration or stabilization ideas and yet exhibits no locking. The static and dynamic response of functionally graded shells, with power-law variation of the constituents, under mechanical and thermal loads is investigated by varying the volume fraction of the constituents. Numerical results for deflections and stresses are presented and compared with available analytical and finite element results from the literature. The performance of the shell element for transient thermal problems is found to be excellent.
Crystal structure of (E)-N,N-diethyl-2-(5-nitrothiazol-2-yl)-1-phenylethen-1-amine, C15H17N3O2S
Authors: Pairan Nur Farahin , Kasim Noor Azilah Mohd , Yamin Bohari M. , Shah Noor Aisyah Ahmad 
Published: July 2017

Abstract
C15H17N3O2S, monoclinic, P21/n (no. 14), a = 9.0650(15) Å, b = 16.342(3) Å, c = 10.1187(17) Å, β = 91.061(5) Å. V = 1498.7(4) Å3, Z = 4, R
gt(F) = 0.0645, wR
ref(F
2) = 0.1323, T = 308 K.
Mechanical and electrical properties of polylactic acid/carbon nanotube composites by rolling process
Authors: Wang Lijun , Qiu Jianhui , Sakai Eiichi 
Published: July 2017

Abstract
In this work, the rolling process was employed to fabricate polylactic acid/multi-walled carbon nanotube (PLA/MWCNT) composites at room temperature. The effects of the rolling conditions on the mechanical and electrical properties of the fabricated composites were investigated. The evolution processes of the internal molecular structures, i.e. changes in molecular orientation and crystallinity, were examined by X-ray diffraction, differential scanning calorimetry, and density method. The results suggested that the molecular orientation improved; however, the crystallinity decreased when the rolling ratio increased. The analysis of the mechanical properties revealed that the rolled composites displayed anisotropy during the rolling process. In the rolling direction, after adding 1 wt.% MWCNTs, the tensile strength increased from 58.6 to 94.3 MPa with the rolling ratio, whereas the fracture strain sharply increased to 131.5% at the rolling ratio of 60%. In addition to the mechanical properties, electrical resistivity was also investigated; notably, this property was not significantly affected by the rolling process. Furthermore, the MWCNT dispersion and morphology were investigated by scanning electron microscopy. These findings offer a simple and effective method to fabricate conductive composites with excellent mechanical properties.
Influence of Tactical and Situational Variables on Offensive Sequences During Elite Football Matches
Authors: Sarmento Hugo , Figueiredo António , Lago-Peñas Carlos , Milanovic Zoran , Barbosa António , Tadeu Pedro , Bradley Paul S. 
Published: July 2017

Abstract
Sarmento, H, Figueiredo, A, Lago-Peñas, C, Milanovic, Z, Barbosa, A, Tadeu, P, and Bradley, PS. Influence of tactical and situational variables on offensive sequences during elite football matches. J Strength Cond Res 32(8): 2331–2339, 2018—This study examined the influence of tactical and situational variables on offensive sequences during elite football matches. A sample of 68 games and 1,694 offensive sequences from the Spanish La Liga, Italian Serie A, German Bundesliga, English Premier League, and Champions League were analyzed using χ2 and logistic regression analyses. Results revealed that counterattacks (odds ratio [OR] = 1.44; 95% confidence interval [CI]: 1.13–1.83; p < 0.01) and fast attacks (OR = 1.43; 95% CI: 1.11–1.85; p < 0.01) increased the success of an offensive sequence by 40% compared with positional attacks. The chance of an offensive sequence ending effectively in games from the Spanish, Italian, and English Leagues were higher than that in the Champions League. Offensive sequences that started in the preoffensive or offensive zones were more successful than those started in the defensive zones. An increase of 1 second in the offensive sequence duration and an extra pass resulted in a decrease of 2% (OR = 0.98; 95% CI: 0.98–0.99; p < 0.001) and 7% (OR = 0.93; 95% CI: 0.91–0.96; p < 0.001), respectively, in the probability of its success. These findings could assist coaches in designing specific training situations that improve the effectiveness of the offensive process.
Frequency- and Time-Domain Dependency of Electrical Properties of Cement-Based Materials during Early Hydration
Authors: Taha H. M. , McCarter W. J. , Suryanto B. , Starrs G. 
Published: July 2017

Abstract
The electrical properties of Portland cement, and cements containing supplementary cementitious materials (SCM), were obtained over the frequency range 1 kHz–10 MHz during the initial 24 h after gauging with water. The response was measured in terms of conductivity and permittivity with both parameters exhibiting significant temporal changes during this period. It was also evident that while the conductivity increased only marginally with increasing frequency of applied electrical field, the permittivity decreased by several orders of magnitude over this frequency range. Moreover, certain features of the permittivity response, which are related to bulk polarization processes, only revealed themselves in the higher frequency range (100 kHz–1 MHz), and went undetected at lower frequencies. The detailed frequency- and time- domain measurements allowed identification of several stages in the early hydration of cement-based materials and the response can be interpreted in terms of hydration kinetics, physico-chemical processes and microstructural development. It is shown that the methodology can be equally applied to cement pastes and concretes.
Stiffening Behaviors of Cement Pastes Measured by a Vibrational Viscometer
Authors: Chen Chun-Tao , Lin Chang-Wei 
Published: July 2017

AbstractThis study explores the stiffening behavior of cement pastes up to 30 min using a new vibrating-fork technique, in which the vibro-viscometer controls the electrical current to maintain a uniform vibrating amplitude of the sensor plate for approximately 0.2 mm at 30 Hz. The applied electrical current is related to the product of the apparent viscosity and the density. The viscosity evolutions of the cement pastes at water–cement ratios of 0.4, 0.5, and 0.6 in the presence or absence of high-range water-reducer admixtures (HRWRA) were compared using a rotational viscometer and a tuning-fork vibration viscometer. The results indicated that the viscosities increased with hydration time and decreased with admixture dosages. The vibration viscometer seems to have applied higher shear rates than the rotational viscometer during the early hydration so the viscosities measured by the vibration viscometer were always lower. However, the increases in the viscosity of the cement pastes, as measured by the vibration viscometer, were more stable than those measured by the rotational viscometer. In addition, the subtle increases in the paste viscosities during very early hydration were detected well by the vibration viscometer. The vibrating-fork technique has been proven to be a useful tool for characterizing microstructure changes in early cement pastes.
Applicability of Ultrasonic Measurement on the Monitoring of the Setting of Cement Pastes: Effect of Water Content and Mineral Additions
Authors: Mohamed Mohamed Saleh , Carette Jérôme , Delsaute Brice , Staquet Stéphanie 
Published: July 2017

Abstract
Until now, standardized methods developed for the detection of initial and final setting time of cement paste were destructive and non-continuous. The well-established ultrasonic pulse transmission velocity (UPV) method can be correlated to the setting process of cement-based materials by the measurement of P-waves. However, S-waves seem to be better indicators of the setting of cement-based materials, because they are more sensitive to the solid matrix connectivity and less dependent to the air content. A new methodology, based on the combined monitoring of P-waves and S-waves, has already been developed to determine the setting times of mortar and concrete. The purpose of this study is to extend this methodology to cement pastes. Ordinary portland cement pastes with three water/cement ratio between 0.3 and 0.5 have been investigated. In addition, a portland cement, blast-furnace slag and limestone filler blended cement paste with a 0.4 water/cement ratio is studied in order to validate all observations. This study shows that the dynamic elastic properties can be linked to the initial and final setting times of cement paste. The early age evolution of the elastic properties depends on the air content and the binder nature. The combined monitoring of P-waves and S-waves provide accurate indicators of the setting process.
Using Modified ASTM C403 Test Procedure to Evaluate Set Time and Admixture Compatibility of Shotcrete Mortar
Authors: Kim Hyunwook , Moon Hoon , Kim Ji-Hyun , Chung Chul-Woo 
Published: July 2017

AbstractSet time of shotcrete is mainly driven by the use of a highly reactive set accelerator. The control of set time is very important for providing successful application of shotcrete in the construction site, because it determines key parameters such as capability to increase layer thickness and loss of the material caused by rebound of shotcrete. However, there is no standard test procedure available to determine the set and stiffening process of shotcrete. In this research, the stiffening process of shotcrete mortar was measured using the penetration resistance test in the American Society for Testing and Materials (ASTM) C403, Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance. Various types of shotcrete accelerators and three different sources of portland cement have been used to investigate the set and stiffening process of shotcrete mortar. According to the experimental results, calcium aluminate type accelerators worked most effectively in controlling set and stiffening of shotcrete mortar. It was found that the penetration resistance test can be used to evaluate compatibility issues between the cement and the shotcrete accelerator. The set time of shotcrete can be determined using best fitted function using current set time criteria of 3.5 and 27.6 MPa for initial and final set.
El mundo de Malala: Una historia vivida en un contexto coyuntural heredero de la Guerra Fría
Authors: Agüero García Javier 
Published: July 2017

Este trabajo es un ensayo interpretativo del contexto histórico en el que ha vivido Malala Yousafzai, la joven galardonada con el Premio Nobel de la Paz en 2014. Mediante la perspectiva coyuntural se parte de la invasión soviética de Afganistán, para reconocer los orígenes de un conflicto que acabó por envolver a Pakistán dentro de una realidad compleja con el establecimiento de poblaciones afganas en una región fronteriza. Acto seguido, se ahonda en el fundamentalismo pakistaní para brindar una perspectiva de un fenómeno que floreció durante el siglo XX, que empezó a tener mayor importancia en la década de 1970 y que ha sido más patente sobre todo a partir de 2001. Finalmente, se analiza la historia vivida de Malala inmersa en un entorno fundamentalista comandado predominantemente por los talibanes.
La no maternidad en México. El rol del género y la desigualdad socioeconómica
Authors: Linares Bravo Bárbara Carolina , Nazar Beutelspacher Austreberta , Sánchez Ramírez Georgina , Zapata Martelo Emma , Salvatierra Izaba Benito 
Published: July 2017

La no maternidad en México se perfila como un complejo fenómeno que se sugiere distinto al de las sociedades industrializadas y altamente urbanizadas en las que ha sido mayormente estudiada. Las desiguales condiciones en que se lleva a cabo, aluden a una diversidad de experiencias que requieren ser documentadas. Este estudio busca contribuir al conocimiento de la no maternidad en México, explorando, a partir de fuentes secundarias y análisis descriptivos, sus aspectos sociales y económicos más relevantes. Se ratificó que la no maternidad ocurre bajo diferentes contextos socioeconómicos que llegan a ser incluso antagónicos. La no unión conyugal se presentó como un aspecto importante de la no maternidad, apuntando que las mujeres que no son madres, tampoco son esposas, situación que demuestra, por una parte, una doble transgresión al modelo hegemónico del ser mujer desde diferentes contextos mexicanos, y por otra, revela una realidad hasta ahora poco visible de las mujeres no madres y no esposas: la de las mujeres con limitaciones físicas para trabajar.
Life Course Perspective and Body Weight Discrimination: An Integrated Approach to Understand the Relationship Between Obesity and Food Insecurity in Women.
Authors: Martinez-Jaikel Tatiana 
Published: July 2017

Introducción: El exceso de peso corporal, es un problema de salud prevalente y creciente entre las mujeres de los Estados Unidos y tiene múltiples consecuencias sobre su salud. Las mujeres con exceso de peso experimentan discriminación en diversos espacios. Varios estudios han llegado a la conclusión de que la inseguridad alimentaria enel hogar,suele estar asociada con el exceso de peso corporal en las mujeres, pero no así en los hombres. La hipótesis más frecuente ha sido que la inseguridad alimentaria conduce al exceso de peso. Pero, ha habido un aumento en los estudios que proponen lo contrario. Propósito: La aplicación de una perspectiva del ciclo vital proporcionará una mejor comprensión de cómo la discriminación basada en el peso, a través de múltiples espacios, y el deterioro de la salud producto de la obesidad podría conducir a la inseguridad alimentaria en las mujeres. Resultados: Oportunidades reducidas en los ámbitos del empleo, la educación y las relaciones sentimentales, tienen un impacto considerable sobre la situación económica del exceso de peso de las mujeres y finalmente pueden llevar a las mujeres obesas a la inseguridad alimentaria. Conclusiones: El uso de esta perspectiva, nos proporciona el potencial de plantear preguntas de investigación que han sido previamente inexplorada, así como, planear intervenciones y políticas para abordar esta desigualdad en salud.
PENGELOLAAN RUMAH TANGGA NELAYAN DITINJAU DARI PERSEPSI JENDER (Studi Kasus di Kelurahan Pasie Nan Tigo Kota Padang)
Authors: Mursidin Mursidin , Hikmah Hikmah , Nasution Zahri 
Published: July 2017

Penelitian ini dilakukan di Kelurahan Pasie Nan Tigo, Kecamatan Koto Tangah, Kota Padang. Penelitian bertujuan untuk mendapatkan informasi tentang peranan keluarga dalam pengelolaan rumah tangga nelayan ditinjau dari persepsi jender. Metode yang digunakan adalah metode survey yang bersifat deskriftip. Data yang digunakan dalam penelitian ini adalah data primer dan data sekunder. Data di analisis menggunakan metode Harvard dan dibahas secara deskriptif. Hasil penelitian menunjukkan bahwa pada analisis kesetaraan jender masih adanya ketimpangan jender yang mewarnai pola kerja masyarakat nelayan setempat yakni adanya beban kerja, dimana istri memiliki peran ganda yaitu sebagai penanggung jawab dalam urusan rumah tangga dan juga membantu suami sebagai pencari nafkah. Persepsi jender yang paling banyak dianut oleh suami dan istri dalam keluarga nelayan pada masyarakat tersebut adalah istri dan suami menyadari bahwa perbedaan jenis kelamin tidak harus dipertentangkan dalam menghidupi keluarga, tetapi justru bersifat saling mendukung dan melengkapi. Sedangkan tugas berdasarkan jender yang paling banyak dianut baik oleh suami dan istri dalam keluarga nelayan pada masyarakat tersebut adalah tugas utama istri mengurus rumah tangga; tetapi boleh membantu tugas suami dalam mencari nafkah keluarga sedangkan tanggung jawab mencari nafkah utama tetap tugas suami. Tittle: Gender Perception of Fisheries Household Management (Case Study in Village of the Pasie Nan Tigo, Padang District)This research was conducted at the village of Pasie Nan Tigo, sub district of the Koto Tangah Padang, The research was aimed to analyze the role of family's member in of fisheries household management in gender perception point of view. Survey method was used in this research to collect the Primary and secondary data. Harvard method was used to analyze the data and the results were also briefly discussed descriptively. The results of the study showed that gender equity was unbalanced between wife and husband. That wives play a double roles; as a housewife and help their husband to generate income. In the perception of gender equity, wife has to be a housewife and help husband to get money, but husband hasa main responsibility to earn money for the household.