bluuebunny/crossref_metadata_2025_split huggingface dataset:
Maintenance strategy selection with risky evaluations using RAHP
Authors: Seiti Hamidreza , Tagipour Razieh , Hafezalkotob Ashkan , Asgari Farhad 
Published: September 2017

AbstractIn recent years, maintenance, especially its preventive type, has been seen as an effective and considerable factor in improving the functions of machines. Maintenance plays a vital role in organizations by keeping and increasing the reliability, accessibility, the quality of products, risk mitigation, return improvement, and safety. An effective maintenance programme can be realized by implementing a proper maintenance strategy. Therefore, maintenance and its strategies have a special status in industries. However, selecting a proper maintenance strategy has always been a complex process because maintenance is a nonrepetitive task. Likewise, the lack of failure records and constant changes in the conditions of machines makes it further complicated. Hence, the decision‐making also depends on experts' opinions and because some kind of risk and uncertainty are always there in experts evaluations, the reliability of evaluations is questionable. The present study was aimed to develop a risk‐based model grounded on the analytical hierarchical process, namely, RAHP, to meet this need of maintenance. A case study from a steel rolling company was considered to evaluate the effectiveness of this model.
Identifying and prioritizing factors influencing the selection of the top suppliers of e‐procurement using FDEMATEL and FANP
Authors: Soleimani Negar , Valmohammadi Changiz 
Published: September 2017

AbstractThe aim of this study is to identify, rank, and determine the importance of factors influencing the selection of the top supplier of electronic procurement in organizations using a hybrid approach. This is a case study of Irancell Telecommunication Service Company in which fuzzy decision‐making trial and evaluation (FDEMATEL) and fuzzy analytical network process (FANP) were used. FDEMATEL was employed to determine the interaction and interrelationships among the identified criteria and subcriteria, while utilizing FANP to calculate the weights of the criteria and their relevant subcriteria to determine their priorities. Therefore, the research literature was first reviewed to identify the factors influencing the selection of suppliers. For this purpose, the experts on communication networks were interviewed to select 16 final factors as the most important subcriteria that were then categorized as 5 groups (technology, environmental, services, organizational, and commercial) on which the study was based. After extracting the criteria for ranking the suppliers, codifying evaluation questionnaire, and converting the opinions in the Likert scale, 16 criteria were finally chosen with scores above the mean. FDEMATEL was used to determine the weights of subcriteria. In the final step, FANP was employed for prioritization. Results indicate that the organizational criterion is the most influential factor; however, the criterion services is the most permeable factor. The greatest weights were obtained from production capacity and provisions and geographical situation which were weighted 0.097 and 0.039, respectively. They are also regarded as the most and least important criteria for the selection of the top supplier of e‐procurement by the experts.
Improvement of the efficacy of vascularized lymph node transfer for lower‐extremity lymphedema via a prefabricated lympho‐venous shunt through lymphaticovenular anastomosis between the efferent lymphatic vessel and small vein in the elevated vascularized lymph node
Authors: Akita Shinsuke , Yamaji Yoshihisa , Tokumoto Hideki , Sasahara Yoshitaro , Kubota Yoshitaka , Kuriyama Motone , Mitsukawa Nobuyuki 
Published: September 2017

AbstractBackgroundFollowing vascularized lymph node (VLN) transfer (VLNT), the VLN may be at a risk for sclerosis because of efferent lymphatic vessel obstruction. We developed a new technique to prevent VLN sclerosis via a prefabricated lympho‐venous (LV) shunt. This study compared the treatment outcomes of single VLNT with prefabricated LV shunt, conventional multiple VLNTs, and conventional single VLNT.MethodsOverall, 47 limbs of 45 patients that underwent VLNT for lower‐extremity lymphedema (LEL) in late clinical stage II/III were divided into 3 groups: conventional single VLNT group (control; 21 limbs where 4 had primary LEL), multiple VLNTs group (13 limbs where 3 had primary LEL), and prefabricated LV shunt group (13 limbs where 4 had primary LEL). In the prefabricated LV shunt group, lymphaticovenular anastomosis between the efferent lymphatic vessel and small vein in the elevated VLN were performed simultaneously with VLNT.ResultsAlthough venous thrombosis at the anastomosis site was observed in 1 case, it was salvaged by re‐anastomosis, and all VLNs survived. No other complications were observed. The LEL index significantly improved in the prefabricated LV shunt group compared with that in the control group (28.0 ± 1.7 vs 20.9 ± 1.5, P = 0.02). In the prefabricated LV shunt group, all VLNs survived functionally, and the average size of the transferred lymph nodes was significantly larger than that of the control group (5.7 ± 0.1 vs 4.3 ± 0.2 mm, P < 0.01).ConclusionsPrefabricated LV shunt may improve the efficacy of VLNT.
Organization of the motor‐unit pool for different directions of isometric contraction of the first dorsal interosseous muscle
Authors: Lei Yuming , Suresh Nina L. , Rymer William Z. , Hu Xiaogang 
Published: September 2017

ABSTRACTIntroduction: Muscle force generation involves recruitment and firing rate modulation of motor units (MUs). The control of MUs in producing multidirectional forces remains unclear. Methods: We studied MU recruitment and firing properties, recorded from the first dorsal interosseous muscle, for 3 different directions of contraction: abduction; abduction/flexion combination; and flexion. Results: MUs were recruited systematically at higher threshold force during flexion. Larger MUs were recruited and firing rates of MUs were lower during abduction. There was an orderly recruitment of MUs according to MU size regardless of contraction direction, obeying the “size principle.” Firing rates of earlier‐recruited MUs were consistently higher than later‐recruited MUs, affirming the “onion‐skin” property. Discussion: Our findings suggest that the size principle and onion‐skin organization together provide a general description of MU recruitment patterns and firing properties. The directional alternations of MU control properties likely reflect changes in neural drive to the muscle. Muscle Nerve 57: E85–E93, 2018
Trends in pelvic organ prolapse management in Latin America
Authors: Plata Mauricio , Bravo‐Balado Alejandra , Robledo Daniela , Castaño Juan C. , Averbeck Márcio A. , Plata Manuel A. , Cataño Juan G. , Caicedo Juan I. , Trujillo Carlos G. 
Published: September 2017

AimsTo describe practice patterns and perspectives regarding pelvic organ prolapse (POP) management among urologists, gynecologists, and urogynecologists in Latin America (LATAM).MethodsA cross‐sectional study was conducted from April to September 2016 using a 37‐item internet‐based survey applied to members of urologic and gynecologic associations from 18 countries. Participants were asked about their background and practice patterns. Descriptive statistics were employed.ResultsA total of 673 responses were obtained. Most came from Colombia (33.6%) and Brazil (24.7%). The number of practitioners who perform at least one POP procedure per month and were eligible to finish the survey was 529 (78.6%), out of which 323 (61.0%) were urologists, 156 (29.5%) gynecologists, and 50 (9.5%) urogynecologists. Mesh‐based POP repairs were used by 57.1% of participants. Out of non‐mesh users, the most frequent vaginal procedures were sacrospinous fixation (30%), colporrhaphy (25%), and uterosacral fixation (12%). Regarding the impact of FDA warnings, 75.2% participants indicated that the use of mesh has declined, and 41.9% considered this has had a negative effect in the use of incontinence tapes as well. Only two physicians reported legal disputes related to mesh procedures, and 75.8% said they would still indicate mesh repairs in certain cases.ConclusionsThis is the first report on POP practice patterns in LATAM. Preferences regarding surgical management of POP are not very different from international trends. Despite intense scrutiny and media exposure, mesh‐based procedures are still largely used in LATAM.
Conserving algorithms for frictionless and full stick friction dynamic contact problems using the direct elimination method
Authors: Agelet de Saracibar C. , Di Capua D. 
Published: September 2017

SummaryIn this paper, conserving time‐stepping algorithms for frictionless and full stick friction dynamic contact problems are presented. Time integration algorithms for frictionless and full stick friction dynamic contact problems have been designed to preserve the conservation of key discrete properties satisfied at the continuum level. Energy and energy‐momentum–preserving algorithms for frictionless and full stick friction dynamic contact problems, respectively, have been designed and implemented within the framework of the direct elimination method, avoiding the drawbacks linked to the use of penalty‐based or Lagrange multipliers methods. An assessment of the performance of the resulting formulation is shown in a number of selected and representative numerical examples, under full stick friction and slip frictionless contact conditions. Conservation of key discrete properties exhibited by the time‐stepping algorithm is shown.
The role of sociodemographic factors in maternal psychological distress and mother‐preterm infant interactions
Authors: Gondwe Kaboni W. , White‐Traut Rosemary , Brandon Debra , Pan Wei , Holditch‐Davis Diane 
Published: September 2017

ABSTRACTPreterm birth has been associated with greater psychological distress and less positive mother infant interactions than were experienced by mothers of full‐term infants. Maternal and infant sociodemographic factors have also shown a strong association with psychological distress and the mother‐infant relationship. However, findings on their effects over time are limited. In this longitudinal analysis, we explored the relationship of maternal and infant sociodemographic variables (maternal age, maternal education, marital status, being on social assistance, maternal race, infant birth weight, and infant gender) to maternal psychological distress (depressive, posttraumatic stress, anxiety, parenting stress symptoms, and maternal worry about child's health) through 12 months corrected age for prematurity, and on the home environment, and mother‐infant interactions through 6 months corrected age for prematurity. We also explored differences related to maternal obstetrical characteristics (gestational age at birth, parity, mode of delivery, and multiple birth) and severity of infant conditions (Apgar scores, need for mechanical ventilation, and infant medical complications). Although the relationship of maternal and infant characteristics with these outcomes did not change over time, psychological distress differed based on marital status, maternal education, infant gender, and infant medical complications. Older mothers provided more a positive home environment. Mother‐infant interactions differed by maternal age, being on public assistance, maternal race, infant gender, and infant medical complications. More longitudinal research is needed to better understand these effects over time in order to identify and support at‐risk mothers.
Distributed impulsive synchronization of Lur'e dynamical networks via parameter variation methods
Authors: Tang Ze , Park Ju H. , Zheng Wei‐Xing 
Published: September 2017

SummaryThis paper is devoted to investigating the exponential synchronization of coupled Lur'e dynamical networks with multiple time‐varying delays and stochastic disturbance. The problem studied in this paper could be regarded as a kind of leader‐following synchronization issue. As the networks may suffer from certain impulsive disturbance, an effective distributed impulsive control protocol is proposed to synchronize the stochastic Lur'e dynamical networks. According to the comparison principle, the average impulsive interval, and the extended formula for the variation of parameters, sufficient conditions are derived for successful achievement of the network synchronization with consideration to different functions of impulsive effects. Furthermore, the exponential convergence rate is obtained based on the impulsive solution equation. In addition, finally, some numerical simulations are given to illustrate the validity of the control scheme and the theoretical analysis.
Energy biomass competitiveness—three different views on biomass price
Authors: Knápek Jaroslav , Vávrová Kamila , Valentová Michaela , Vašíček Jiří , Králík Tomáš 
Published: September 2017

The paper presents an economic model that provides a systemic approach to the evaluation of growing biomass for energy purposes. We argue that to correctly evaluate the potential of energy biomass, it is necessary to look at it from three different, but interconnected perspectives: (1) minimum price for growing biomass for energy purposes, (2) opportunity costs with respect to other uses of the arable land, namely production of conventional crops, and (3) the aspects of substitution of fossil fuels (e.g., coal) for biomass—the analysis of the demand. Our economic model incorporates the three above points of view. Furthermore, on the case study of the Czech Republic, we show the practical implications of the model on assessment of energy biomass in real conditions. The main findings are that to give the farmers the same rate of return as conventional crops, the price of intentionally grown biomass for energy purposes in the Czech Republic would have to be up to almost three times higher than is the adequate minimum price. On the other hand, in order to be competitive as a substitute for coal for local space heating, the price of biomass would have to be close to zero. WIREs Energy Environ 2017, 6:e261. doi: 10.1002/wene.261This article is categorized under:

Bioenergy > Economics and Policy
Relieving the Bottleneck: An Investigation of Barriers to Expansion of Supervision Networks at Genetic Counseling Training Programs
Authors: Berg Jordan , Hoskovec Jennifer , Hashmi S. Shahrukh , McCarthy Veach Patricia , Ownby Allison , Singletary Claire N. 
Published: September 2017

AbstractRapid growth in the demand for genetic counselors has led to a workforce shortage. There is a prevailing assumption that the number of training slots for genetic counseling students is linked to the availability of clinical supervisors. This study aimed to determine and compare barriers to expansion of supervision networks at genetic counseling training programs as perceived by supervisors, non‐supervisors, and Program Directors. Genetic counselors were recruited via National Society of Genetic Counselors e‐blast; Program Directors received personal emails. Online surveys were completed by 216 supervisors, 98 non‐supervisors, and 23 Program Directors. Respondents rated impact of 35 barriers; comparisons were made using Kruskal‐Wallis and Wilcoxon ranked sum tests. Half of supervisors (51%) indicated willingness to increase supervision. All non‐supervisors were willing to supervise. However, all agreed that being too busy impacted ability to supervise, highlighted by supervisors’ most impactful barriers: lack of time, other responsibilities, intensive nature of supervision, desire for breaks, and unfilled positions. Non‐supervisors noted unique barriers: distance, institutional barriers, and non‐clinical roles. Program Directors’ perceptions were congruent with those of genetic counselors with three exceptions they rated as impactful: lack of money, prefer not to supervise, and never been asked. In order to expand supervision networks and provide comprehensive student experiences, the profession must examine service delivery models to increase workplace efficiency, reconsider the supervision paradigm, and redefine what constitutes a countable case or place value on non‐direct patient care experiences.
The details of an unusual “ghost” after transvenous lead extraction: Three‐dimensional computed tomography analysis
Authors: Kiuchi Kunihiko , Fukuzawa Koji , Mori Shumpei , Nishii Tatsuya , Matsumoto Kensuke , Ichibori Hirotoshi , Yamada Takashi 
Published: September 2017

AbstractTransvenous lead extraction (TLE) is performed to prevent deaths in patients with device infections. Intracardiac masses detected by echocardiography, i.e., “ghosts,” are reported in 8% of patients after a TLE in retrospective studies and in 14% in prospective studies. We herein describe a case with unusual ghosts after a TLE. Three‐dimensional computed tomography (3DCT) is useful for revealing all the details of unusual ghosts. In this case, the residual silicone insulation and “cast,” including the fibrous sheath and severe calcifications could be visualized and differentiated by 3DCT.
In Haitian women and preschool children, iron absorption from wheat flour-based meals fortified with sodium iron EDTA is higher than that from meals fortified with ferrous fumarate, and is not affected by Helicobacter pylori infection in children
Authors: Herter-Aeberli Isabelle , Eliancy Kerline , Rathon Yanick , Loechl Cornelia U. , Marhône Pierre Joseline , Zimmermann Michael B. 
Published: September 2017

AbstractFe fortification of wheat flour was proposed in Haiti to combat Fe deficiency, but Fe bioavailability from fortificants has never been investigated in Haitian women or preschool children, two key target groups. We aimed to investigate the bioavailability of ferrous fumarate (FeFum), NaFeEDTA and their combination from fortified wheat flour. We recruited twenty-two healthy mother–child pairs in Port au Prince, Haiti, for an Fe-absorption study. We administered stable Fe isotopes as FeFum or NaFeEDTA individually in low-extraction wheat flour bread rolls consumed by all participants in a randomised, cross-over design. In a final, identical meal, consumed only by the women, FeFum+NaFeEDTA was administered. We measured Fe absorption by using erythrocyte incorporation of stable isotopes 14 d after consumption of each meal, and determined Fe status, inflammatory markers and Helicobacter pylori infection. Fe absorption (geometric mean was 9·24 (95 % CI 6·35, 13·44) and 9·26 (95 % CI 7·00, 12·31) from FeFum and 13·06 (95 % CI 9·23, 19·10) and 12·99 (95 % CI 9·18, 18·39) from NaFeEDTA in mothers and children, respectively (P<0·05 between compounds). Fe absorption from FeFum+NaFeEDTA was 11·09 (95 % CI 7·45, 17·34) and did not differ from the other two meals. H. pylori infection did not influence Fe absorption in children. In conclusion, in Haitian women and children, Fe absorption from NaFeEDTA was 40 % higher than from FeFum, and the combination FeFum+NaFeEDTA did not significantly increase Fe absorption compared with FeFum alone. In the context of Haiti, where the high costs of NaFeEDTA may not be affordable, the use of FeFum at 60 mg Fe/kg flour may be a preferable, cost-effective fortification strategy.
A histopathological connection between a fatal endolymphatic sac tumour and von Hippel–Lindau disease from 1960
Authors: Bellairs J A , Gluth M B 
Published: September 2017

AbstractObjective:To highlight a case from 1960 connecting endolymphatic sac tumour and von Hippel–Lindau disease.Case report:In 1960, a 24-year-old woman presented with unilateral hearing loss, pulsatile tinnitus and a mass visible on otoscopy. The patient underwent surgical biopsy, which was complicated by haemorrhage, and ultimately resulted in death. At autopsy, a destructive temporal bone neoplasm with cystic and papillary architecture was observed that had eroded into the otic capsule. Intra-abdominal lesions consistent with von Hippel–Lindau disease were also observed, and the surgeon postulated a connection between endolymphatic sac tumour and von Hippel–Lindau disease.Method:A review of the literature was carried out using PubMed.Conclusion:Endolymphatic sac tumours are rare neoplasms of the temporal bone that can occur sporadically or as part of von Hippel–Lindau disease. The connection between endolymphatic sac tumour and von Hippel–Lindau disease was first proposed in 1988 and formalised in 1997. We believe that this case represents the first documented connection between endolymphatic sac tumour and von Hippel–Lindau disease.
Giant magnetoelectric effects achieved by tuning spin cone symmetry in Y-type hexaferrites
Authors: Zhai Kun , Wu Yan , Shen Shipeng , Tian Wei , Cao Huibo , Chai Yisheng , Chakoumakos Bryan C. , Shang Dashan , Yan Liqin , Wang Fangwei , Sun Young 
Published: September 2017

AbstractMultiferroics materials, which exhibit coupled magnetic and ferroelectric properties, have attracted tremendous research interest because of their potential in constructing next-generation multifunctional devices. The application of single-phase multiferroics is currently limited by their usually small magnetoelectric effects. Here, we report the realization of giant magnetoelectric effects in a Y-type hexaferrite Ba0.4Sr1.6Mg2Fe12O22 single crystal, which exhibits record-breaking direct and converse magnetoelectric coefficients and a large electric-field-reversed magnetization. We have uncovered the origin of the giant magnetoelectric effects by a systematic study in the Ba2-x
Sr
x
Mg2Fe12O22 family with magnetization, ferroelectricity and neutron diffraction measurements. With the transverse spin cone symmetry restricted to be two-fold, the one-step sharp magnetization reversal is realized and giant magnetoelectric coefficients are achieved. Our study reveals that tuning magnetic symmetry is an effective route to enhance the magnetoelectric effects also in multiferroic hexaferrites.
Genomic comparison of esophageal squamous cell carcinoma and its precursor lesions by multi-region whole-exome sequencing
Authors: Chen Xi-Xi , Zhong Qian , Liu Yang , Yan Shu-Mei , Chen Zhang-Hua , Jin Shan-Zhao , Xia Tian-Liang , Li Ruo-Yan , Zhou Ai-Jun , Su Zhe , Huang Yu-Hua , Huang Qi-Tao , Huang Li-Yun , Zhang Xing , Zhao Yan-Na , Yun Jin-Ping , Wu Qiu-Liang , Lin Dong-Xin , Bai Fan , Zeng Mu-Sheng 
Published: September 2017

AbstractEsophageal squamous dysplasia is believed to be the precursor lesion of esophageal squamous cell carcinoma (ESCC﻿); however, the genetic evolution from dysplasia to ESCC remains poorly understood. Here, we applied multi-region whole-exome sequencing to samples from two cohorts, 45 ESCC patients with matched dysplasia and carcinoma samples, and 13 tumor-free patients with only dysplasia samples. Our analysis reveals that dysplasia is heavily mutated and harbors most of the driver events reported in ESCC. Moreover, dysplasia is polyclonal, and remarkable heterogeneity is often observed between tumors and their neighboring dysplasia samples. Notably, copy number alterations are prevalent in dysplasia and persist during the ESCC progression, which is distinct from the development of esophageal adenocarcinoma. The sharp contrast in the prevalence of the ‘two-hit’ event on TP53 between the two cohorts suggests that the complete inactivation of TP53 is essential in promoting the development of ESCC.