bluuebunny/crossref_metadata_2025_split huggingface dataset:
Methods for System Selection Based on Sequential Mean–Variance Analysis
Authors: Batur Demet , Wang Lina , Choobineh F. Fred 
Published: November 2018

We propose two sequential, indifference-zone procedures for the comparison of simulated systems. Comparisons and selection of the best system are based on the mean and variance of a performance metric estimated by simulation. The mean represents the central tendency while the variance is the surrogate for the system’s inherent systematic risk. The first procedure identifies the system(s) with the largest expected value and smallest variance. The second procedure uses the variance of a reference system as a risk threshold, and selects the system with the largest mean from among those with an acceptable level of risk not above the threshold. Numerical experiments demonstrate the validity and efficacy of the proposed procedures.The online appendix is available at https://doi.org/10.1287/ijoc.2018.0808 .
Equipment selection based on two different fuzzy multi criteria decision making methods: Fuzzy TOPSIS and fuzzy VIKOR
Authors: Alpay Serafettin , Iphar Melih 
Published: November 2018

AbstractDeciding on equipment from a set of feasible alternatives for excavation purpose in open pit mines is a critical task for the engineers and contractors since it considerably affects the project costs and productivity. Alternatives of rock excavation equipment, which are deemed suitable for the diggability of rock units in open pits, can have many technical specifications or factors that should be considered simultaneously. It can be successfully selected in a scientific way by employing multi-criteria decision making methods by means of taking the advantage of engineering knowledge, intuition and past experiences. In this study, we select the most convenient hydraulic excavator for a magnesite mine by fuzzy multi criteria decision making methods: fuzzy TOPSIS and fuzzy VIKOR. The fuzzy approach allows the experienced engineers to compare the multiple criteria (technical factors) and the possible alternatives of rock excavation machines by simply using linguistic expressions in their natural language.
Gas Desorption of Low-Maturity Lacustrine Shales, Trassic Yanchang Formation, Ordos Basin, China
Authors: Fan Bojiang , Wang Xiangzeng , Shi Liang 
Published: November 2018

AbstractRecent exploration activities on Triassic Yan-chang Formation has indicated significant potential for shale-gas resources. Even though some areas have been put into pilot production, challenge exists in effectively determining shale-gas content, whichmake it difficult to estimate reserve and forecast production. This is primarily due to the low maturity of the shale and complicated relationships between oil, water and gas. However, studies on the gas generation and accumulation of low-maturity shales are lacking in the literature and previous desorption experiments did not consider the effects of oil and water. In this study, eight core samples are used to run the gas-desorption experiment. Shale-gas composition and isotopic fractionation data are analyzed to provide insights on gas adsorption, expulsion and accumulation processes in the Yanchang Formation. The experiment results indicate that the overall methane content decreases (from 68.8% to 58.9%), heavy hydrocarbon-gas content (from 20.30% to 36.12%) and δ13C1 increase (from -51.43% to - 34.63%) during the desorption process. Gas yield reached up to 3.89 m3/t shale, and the content of lost gas can account for more than 20% of total desorbed gas during the coring process. The recoverable shale gas content is estimated to be 80% of the total gas-desorption volume. Desorbing the rest 20% requires extra heating under much higher temperature.
Stillbirths in women with pre-gravid obesity
Authors: Merc Maja Dolanc , Lučovnik Miha , Bregar Andreja Trojner , Verdenik Ivan , Tul Nataša , Blickstein Isaac 
Published: November 2018

Abstract

Objective
To determine the association between pre-gravid obesity and stillbirth.

Methods
A retrospective study of a population-based dataset of births at ≥34 weeks’ gestation. We excluded fetal deaths due to lethal anomalies and intrapartum fetal deaths. We calculated the incidence of stillbirths, neonatal respiratory distress syndrome (RDS) and neonatal intensive care unit (NICU) admissions per ongoing pregnancies for each gestational week in the two body mass index (BMI) categories (≥30 vs.<30).

Results
Pre-pregnancy obesity (BMI≥30), pre-pregnancy diabetes, oligo- and polyhydramnios, being small for gestational age (SGA) and preeclampsia were significantly associated with stillbirth. However, the only pre-gravid factor that is amenable to intervention was obesity [adjusted odds ratio (OR) 2.0; 95% confidence interval (CI) 1.20, 3.3]. The rates of stillbirth seem to increase with gestational age in both BMI categories. RDS and NICU admission would be presented.

Conclusion
Birth near term might reduce stillbirths and decrease NICU admissions occurring in term and in post-term obese women. This presumable advantage might be offset by the potential risk of labor induction and cesarean section among obese women. Women of childbearing age with a BMI≥30 should be counseled about these risks of obesity during pregnancy and childbirth.
Thermal tuning capabilities of semiconductor metasurface resonators
Authors: Lewi Tomer , Butakov Nikita A. , Schuller Jon A. 
Published: November 2018

Abstract
Metasurfaces exploit optical phase, amplitude, and polarization engineering at subwavelength dimensions to achieve unprecedented control of light. The realization of all dielectric metasurfaces has led to low-loss flat optical elements with functionalities that cannot be achieved with metal elements. However, to reach their ultimate potential, metasurfaces must move beyond static operation and incorporate active tunability and reconfigurable functions. The central challenge is achieving large tunability in subwavelength resonator elements, which requires large optical effects in response to external stimuli. Here we study the thermal tunability of high-index silicon and germanium semiconductor resonators over a large temperature range. We demonstrate thermal tuning of Mie resonances due to the normal positive thermo-optic effect (dn/dT>0) over a wide infrared range. We show that at higher temperatures and longer wavelengths, the sign of the thermo-optic coefficient is reversed, culminating in a negative induced index due to thermal excitation of free carriers. We also demonstrate the tuning of high-order Mie resonances by several linewidths with a temperature swing of ΔT<100 K. Finally, we exploit the large near-infrared thermo-optic coefficient in Si metasurfaces to realize optical switching and tunable metafilters.
New sulfur-containing polymeric sorbents based on 2,2′-thiobisethanol dimethacrylate
Authors: Ronka Sylwia 
Published: November 2018

Abstract
The first step in obtaining of a specific polymer sorbent containing sulfur atoms was the synthesis of a functional monomer – 2,2′-thiobisethanol dimethacrylate (TEDM). Synthesis consists of the reaction of 2,2′-thiobisethanol with methacryloyl chloride in the presence of triethylamine in methylene chloride. The new poly(dimethacrylate)s materials containing sulfur atoms were synthesized in radical suspension polymerization. Homopolymerization of 2,2′-thiobisethanol dimethacrylate and its copolymerization with ethylene glycol dimethacrylate or pentaerythritol tetraacrylate were carried out. The selection of synthesis conditions determines the parameters of the polymer structure and its properties. The presence of sulfur atoms in polymer chains resulted in specific donor-acceptor interactions, which can intensify sorption ability towards metal ions belonging to the group of soft acids. Therefore, the sorption properties of the obtained materials have been determined based on the recovery of precious metal ions, such as gold(III) and silver(I).
A gentle introduction to gasotransmitters with special reference to nitric oxide: biological and chemical implications
Authors: Mir Jan Mohammad , Maurya Ram Charitra 
Published: November 2018

Abstract
Nitric oxide (NO), carbon monoxide (CO) and hydrogen sulfide (H2S) are gaseous molecules of major impact in biology. Despite their toxicity, these molecules have profound effects on mammalian physiology and major implications in therapeutics. At tiny concentrations in human biology, they play key signaling and regulatory functions and hence are now labeled as “gasotransmitters.” In this literature survey, an introduction to gasotransmitters in relevance with NO, CO and H2S has been primarily focused. A special attention has been given to the conjoint physiological, pathophysiological and therapeutic aspects of NO in this work. In addition to the aforementioned elements of the investigation being reported, this report gives a detailed account of some of the recent advancements covering the NO release from both the nitro as well as nitroso compounds. The importance of the metallic center on the eve of producing the reduction center on NO and to develop photolabile properties have been elaborated within the effect of a few examples of metallic centers. Also, theoretical investigations that have been reported in the recent past and some other current theories pertaining to NO chemistry have been enlightened in this review. From the overall study, it is eminent that a number of facts are yet to be explored in context with NO for deeper mechanistic insights, model design for these molecules, other key roles and the search to find the best fit formalism in theoretical chemistry.
A Vector Angle Method of Rolling Bearing Fault Classification by Phase-Space Reconstruction Technique
Authors: Huang Weidi , Gan Chunbiao 
Published: November 2018

Abstract
A fault classification method is developed by the phase-space reconstruction technique for a rotor system with a rolling bearing fault. Based on the nonlinear time series analysis, proper choices on time delay and embedding dimension are firstly discussed to accomplish the phase-space reconstruction from an arbitrarily one-dimensional time series, then the vector angle calculation is derived for each point in the reconstructed trajectory of an illustrating artificial signal, from which the vector angles of the points are composed of 90° and non-90° ones. To perform the fault feature analysis of the rolling bearing, an experimental rig of the rotor-bearing system and dynamical model of the system are established to collect the one-dimensional acceleration signals of three types of rolling bearing faults, and the topology of the reconstructed trajectory in three-dimensional phase space is characterized. It is interesting to find that the effects of various rolling bearing faults on the reconstructed trajectories are different, and the fault features can be extracted successfully by the distribution percentage of 90° and non-90° vector angles of the points in the reconstructed trajectory in three-dimensional phase space, which cannot be identified by the traditional attractor reconstruction method. Moreover, the higher the fault frequency, the lower proportion the healthy points.
ULUSLARARASI İŞLETMELERDE GLOBAL ÇALIŞANLARIN KARŞILAŞTIKLARI KÜLTÜRLERARASI İLETİŞİM ZORLUKLARI VE BU ZORLUKLARIN ÜSTESİNDEN GELMEDE GELİŞTİRİLEN STRATEJİLERİNİN ANLAŞILMASINA YÖNELİK BİR DURUM ÇALIŞMASI
Authors: ERGÜLŞEN BAŞLAR Gizem , NARİN Ayşe 
Published: November 2018

Uluslararası işletmelerde global ekiplerin yerel ekiplerden farklılaştığı noktalar, global ekiplerde karşılaşılan zorluklar ve buna bağlı olarak bu ekiplerde görev almanın gerektirdiği niteliklerin incelenmesi amaçlanmaktadır. Araştırmada, nitel araştırma desenlerinden durum çalışması “case study” deseninin kullanılmış, bu çerçevede dünya üzerinde farklı coğrafyalarda üretim ve satış faaliyeti gerçekleştiren uluslararası bir işletmenin Türkiye’deki global ekip üyelerinden 8 kişi ile yarı yapılandırılmış görüşme formundan yararlanılarak derinlemesine görüşmeler yapılmıştır. Elde edilen veriler içerik analizi yöntemi ile analiz edilmiştir. Araştırma sonucunda, yüzyüze iletişimin sınırlı olduğu global ekiplerde karşı tarafı doğru anlayabilme ve kendini karşı tarafa doğru aktarabilme temelinde iletişim becerisinin kültürel farklılıklar ve sanal ortam bakımından yerel ekiplere göre daha fazla önem kazandığı görülmektedir.
REKLAMIN TÜKETİCİLER ÜZERİNDEKİ ETKİSİNİN CAPI TEKNİĞİYLE ARAŞTIRILMASI
Authors: KÖYLÜOĞLU Selçuk , TEKİN Mahmut , ÇERÇİ Serhat 
Published: November 2018

Çalışmanın amacı, reklamın tüketiciler üzerindeki etkisinin araştırılmasıdır. Bu doğrultuda, CAPI tekniği kullanılarak reklam, marka ve tüketime yönelik değerlendirmeler CAPI tekniği yardımıyla analiz edilmiştir. Araştırmada Konya Şeker A.Ş. Torku’ nun No:1 Çikolatalı Gofret ürünü için Babalar Gününe özel çektiği reklam filmi incelenmiştir. Araştırma İstanbul, İzmir ve Ankara olmak üzere üç büyük ilde yapılmıştır. 335 adet anlamlı veriye ulaşılmıştır. Araştırmaya göre dört başlığın ön plana çıktığı görülmüştür. Bunlar; ürün ilişkisi, marka ilişkisi, reklam ilişkisi ve iletişimdir. Araştırma sonunda reklam filminin ürüne olan katkısının düşük ancak markaya olan katkısının yüksek olduğu tespit edilmiştir. Pascal Nouma’ nın Türk değerlerini sergilemesinin olumlu bulunması ve logonun akılda kalıcılığının yüksek olması ise güçlü alanları temsil etmektedir. Uzun cümleli bölümlerde reklam karesinden ziyade altyazıya odaklanılmıştır. Reklam, babalar gününe özel çekildiğinden daha çok erkek segmentine hitap etmiştir. Bu açıdan firma daha bütüncül bir iletişim politikası benimsemelidir.
Access to the Medical Home Among Children With and Without Special Health Care Needs
Authors: Lichstein Jesse C. , Ghandour Reem M. , Mann Marie Y. 
Published: November 2018

OBJECTIVES:
The medical home is central to providing quality health care for children. Access to the medical home has historically been tracked by using the National Survey of Children With Special Health Care Needs and the National Survey of Children’s Health (NSCH). Between 2012 and 2015, the NSCH was redesigned, combining the 2 surveys into a single, annual assessment. In this study, we provide the latest estimates of medical home access among children in the United States.

METHODS:
We used data from the 2016 NSCH (N = 50 212). Medical home access was defined as a composite measure composed of 5 subcomponents (usual source of care, personal doctor or nurse, referral access, receipt of care coordination, and receipt of family-centered care) for 50 177 US children aged 0 to 17 years. We conducted bivariate analyses and logistic regression to examine the sociodemographic and health characteristics associated with reported attainment of the medical home composite measure and each subcomponent. Analyses were survey weighted.

RESULTS:
In 2016, 43.2% of children with special health care needs (CSHCN) and 50.0% of non-CSHCN were reported to have access to a medical home. Attainment of the medical home composite measure varied significantly by sociodemographic characteristics among both CSHCN and non-CSHCN, as did attainment rates for each of the 5 subcomponents. The medical complexity of CSHCN was also associated with attainment rates of all outcomes.

CONCLUSIONS:
The medical home incorporates elements of care considered necessary for providing comprehensive, quality care. Our results indicate that there is still room to improve access to the medical home among all children.
Incorporating evidence-based principles in medical training. Sharing experience with McMaster
Authors: Weber Silke Anna Theresa , Palhares Neto Aristides , Abbade Luciana Patrícia , Costa Teixeira Caramori Jacqueline , Reis Gilmar , Oliveira Rosemary , Thabane Lehana 
Published: November 2018

This article was migrated. The article was marked as recommended. Background: This workshop was the second activity of the collaboration between the McMaster University, Botucatu Medical School- São Paulo State University (UNESP) and Pontifical Catholic University of Minas Gerais – PUC Minas that took place in Botucatu, Brazil between March 27th to 28th 2017. Aims: Its prime purpose was to share with the Brazilian professors and students how to include evidence-based concepts in their daily teaching activities. Methods: The participants were involved and guided in discussions on how to explore evidence-based techniques to improve their understanding and their willingness to include new teaching strategies in the future. Results: A final evaluation survey completed by the participants indicated that they were highly satisfied with the workshop experience and that they gained an enhancement of knowledge about evidence-based medicine. Conclusion: Participants had an increase in their self-confidence to implementevidence-based concepts in their future lecture programs.
An examination of racist and sexist microaggressions on college campuses
Authors:   , Levchak Charisse Camilla , Glass Jennifer , Butler Amy , Heimer Karen , Bianchi Alison , Sauder Michael 
Published: November 2018

<p>Higher education has been linked to upward mobility in recent decades. Higher education has particularly served as a road to upward mobility for disadvantaged racial and gender groups. While United States colleges and universities strive to make their institutions, programs, and departments more diverse, students who are racial minorities still experience racism and those who are women still experience sexism. Colleges and universities are often considered bastions of progressive liberalism that will challenge racism and sexism; however, the seeds of American racism and sexism that were planted at the country's inception and that were sustained by the blatant subjugation of people of color and women continue to generate race and sex based oppression within present-day American society and within America's academic institutions. Therefore, residual racism and sexism are important to explore, since their presence in educational institutions serves to reify racial and gender based boundaries in achievement and well-being.</p>
<p>To this end, research has inadequately determined the prevalence of overt and covert oppression within academic institutions. Using a sample of college students at a predominately white institution in a Midwestern college town and a diverse institution in a large urban area I will: 1) examine the prevalence of covert and overt racist and sexist experiences among college students and develop models of their occurrence by gender and race; 2) test double jeopardy and multiple jeopardy theory by finding out if women of color experience more racism and sexism than other groups; 3) examine the prevalence of racist, post- racist, sexist and post-sexist beliefs among college students and develop models of their origins by race and gender, 4) examine how environmental context impacts student's experiences and beliefs by comparing college students at a predominately white institution and at a diverse institution; and 5) conduct a path analysis in order to test the causal relationships between demographic factors (race, gender and institution type), experiences (racist and sexist victimization) and attitudes/outlook (racist, post-racist, sexist, post-sexist, campus climate and stress).</p>
Topological Algebras of Bounded Operators with Locally Solid Riesz Spaces
Authors: AYDIN Abdullah 
Published: November 2018

Suppose is a vector lattice
and is a locally solid
vector lattice. An operator is said to be -bounded if, for every order bounded set is topological bounded
in . In this paper, we study on algebraic properties of -bounded operators with the equicontinuous convergence
topology and uniform convergence topology.
Laparoscopic interventions in the pancreas: an 11-year experience of a specialized center
Authors: Khatkov I. E. , Tsvirkun V. V. , Izrailov R. E. , Vasnev O. S. , Tyutyunnik P. S. , Mikhnevich M. V. , Baychorov M. E. , Andrianov A. V. 
Published: November 2018

Introduction:Due to anatomical and functional specifics of the pancreas, its surgery emerged somewhat later than that of other areas of abdominal surgery, i.e. in the last 25 to 30 years of the last century. Minimally invasive laparoscopic interventions on the pancreas are still used insufficiently.Aim: To evaluate an 11-year experience of various laparoscopic interventions in the pancreas accumulated by one surgical team.Materials and methods:From November 2007 to May 2018, 371 patients (153 male and 218 female) underwent various laparoscopic pancreatic procedures for cancers of the biliopancreatoduodenal zone (n = 260), benign pancreatic tumors (n = 37), and chronic pancreatitis (n = 74). We performed 245 laparoscopic pancreaticoduodenal resections, 52 laparoscopic distal resections (LDR), 35 laparoscopic Frey procedures (FP), 18 laparoscopic total duodenopancreatectomies, 8 laparoscopic longitudinal pancreaticojejunostomies (LLPJ), 8 laparoscopic cystoenterostomies (LCE), 3 enucleations, and 2 Beger procedures (BP).Results:Laparoscopic gastropancreatoduodenal resection was performed in 197 (80.4%) cases and pylorus preserving pancreatoduodenal resection in 48 (19.6%) cases. The duration of the procedures was 412 ± 101 minutes, with blood loss volume of 220 ± 152 ml, and postoperative hospital stay of 19 ± 9 days. LDR was done laparoscopically in 50 (96.2%) patients; its duration was 228 ± 74 minutes, blood loss 40 ± 50 ml, and postoperative hospital stay 8 ± 5 days. FP, LLPJ, BP, and LCE were performed laparoscopically in 53 (93%) cases. FP lasted for 436 ± 95, LLPJ for 406 ± 82, BP for 585 ± 134, and LCE for 327 ± 90 minutes. The respective volumes of blood loos were 227 ± 217 mL in FP, 150 ± 156 mL in LLPJ, 175 ± 106 mL in BP, and 60 ± 90 mL in LCE. The postoperative hospital stay lasted for 8 ± 4 days after FP, 9 ± 7 days after LLPJ, 4.5 ± 0.7 days after BP, and 10 ± 9 days after LCE.Conclusion:Laparoscopic surgery of the pancreas is associated with minimal blood loss, absence of wound infection, and more rapid patient activation and rehabilitation. Compliance with the necessary requirements to implementation of laparoscopic technologies in high-volume centers should improve surgical results.