bluuebunny/crossref_metadata_2025_split huggingface dataset:
Performance Analysis of Adaptive Modulation for Distributed Switch-and-Stay Combining with Single Relay
Authors: Bao Vo Nguyen Quoc , Thanh Tran Thien , Do-Hong Tuan 
Published: May 2016

In this paper we present our investigation of the performance of a distributed switch-and-stay scheme and a solution for low-complexity cooperative relaying under adaptive transmission. We are able to derive the closed-form expressions of the occurrence probability, the outage probability, the bit error probability, and the achievable spectral efficiency of the proposed scheme for Rayleigh fading channels. Simulations are performed to verify the analytic results. It is shown that, by applying adaptive modulation, the achievable spectral efficiency of the system is improved significantly, and the proposed scheme achieves the same spectral efficiency as compared to that of the incremental relaying but with a lower relay activation time.
Seismic behavior characteristic of high damping rubber bearing through shaking table test
Authors: Oh Ju , Jang Changhwan , Kim Jin Ho 
Published: May 2016

We investigated a high damping rubber bearing (HDRB) that mitigates damage to buildings and bridges from earthquakes. An HDRB can bear large loads for long periods of time and is capable of large deformations during an earthquake. The characteristics of the HDRB considered in this research include a very high damping capacity, with an equivalent damping factor of more than 15 % for a large earthquake. Moreover, we examined various dependency properties such as compressive stress, frequency, and repeated loading. To evaluate seismic isolation with an HDRB on several earthquake waves, we performed a shaking table test. In this test, deck acceleration was measured by accelerometers. Shear forces on piers were surveyed by using load cells. Furthermore, the seismic capacity of an isolated system with an HDRB was compared with a non-isolated system through shaking table tests. The results show that deck acceleration and shear force were relatively reduced by the HDRB.
Effect of sink flow on dual-valve electro-hydraulic excitation system
Authors: Meng Zhen , Wu Chuan-yu , Ni Jing 
Published: May 2016

In this study, the main goal is to investigate the displacement gain characteristics of novel dual-valve Electro-Hydraulic Excitation system (EHES). Relative to conventional system, the dual-valve system can improve the amplitude range, but the range is always affected by some nonlinear factors. In order to analysis on the issue, a nonlinear mathematical model of dual-valve EHES is established based on Bernoulli and classical electro-hydraulic servo equation. Then, the results of numerical simulations by using of the MATLAB/Simulink software are compared with experimental results. Simulation and experimental results show that the sink flow mainly influences on the flow dynamic characteristics of dual-valve EHES. Because of that, dual-valve EHES only can improve 50 %-70 % of displacement within 5 to 50 Hz of excitation frequency and 45 %-80 % of displacement amplitude within 20 % to 100 % of command value.
Investigation of effect of acoustic field to coagulation of particles in air flow
Authors: Čereška A. , Tetsman I. , Maskeliūnas R. , Grinbergienė I. , Paškevičius P. 
Published: May 2016

In the paper theoretical and experimental investigations of the effect of acoustic field to coagulation of particles in air flow are presented. For the conduction of experimental investigations, a special experimental setup with measurement devices was designed and used. Principle of operation of the proposed experimental setup is presented and the method of conduction of experimental investigations is described. Investigations of effectiveness of coagulation of rigid particles of very small diameter have been performed and dependencies from the sound pressure of the acoustic field and its frequency were investigated. For excitation of the acoustic field two sound generators were used: piezoelectric and aeroacoustic. As a result of the performed investigations it was determined that with the increase of the frequency of acoustic excitation velocity of coagulation of particles increases when the diameter of the particles does not exceed 1 μm. For the most effective coagulation of the particles having the diameter up to 1 μm ultrasonic frequency is required. For the particles with the diameter larger than 1 μm frequency lower than ultrasonic is required. Dependencies of velocity of coagulation of particles from the frequency of acoustic signal and from its amplitude were determined. Initial granulometric constituent parts were compared with the constituent parts obtained after the experimental investigations.
Heterogeneous Contribution of Insulin Sensitivity and Secretion Defects to Gestational Diabetes Mellitus
Authors: Powe Camille E. , Allard Catherine , Battista Marie-Claude , Doyon Myriam , Bouchard Luigi , Ecker Jeffrey L. , Perron Patrice , Florez Jose C. , Thadhani Ravi , Hivert Marie-France 
Published: May 2016

OBJECTIVE
To characterize physiologic subtypes of gestational diabetes mellitus (GDM).

RESEARCH DESIGN AND METHODS
Insulin sensitivity and secretion were estimated in 809 women at 24–30 weeks' gestation, using oral glucose tolerance test–based indices. In women with GDM (8.3%), defects in insulin sensitivity or secretion were defined below the 25th percentile in women with normal glucose tolerance (NGT). GDM subtypes were defined based on the defect(s) present.

RESULTS
Relative to women with NGT, women with predominant insulin sensitivity defects (51% of GDM) had higher BMI and fasting glucose, larger infants (birth weight z score 0.57 [−0.01 to 1.37] vs. 0.03 [−0.53 to 0.52], P = 0.001), and greater risk of GDM-associated adverse outcomes (57.6 vs. 28.2%, P = 0.003); differences were independent of BMI. Women with predominant insulin secretion defects (30% of GDM) had BMI, fasting glucose, infant birth weights, and risk of adverse outcomes similar to those in women with NGT.

CONCLUSIONS
Heterogeneity of physiologic processes underlying hyperglycemia exists among women with GDM. GDM with impaired insulin sensitivity confers a greater risk of adverse outcomes.
Cognitive Dysfunction: Part and Parcel of the Diabetic Foot
Authors: Natovich Rachel , Kushnir Talma , Harman-Boehm Ilana , Margalit Daniella , Siev-Ner Itzhak , Tsalichin Daniel , Volkov Ilia , Giveon Shmuel , Rubin-Asher Deborah , Cukierman-Yaffe Tali 
Published: May 2016

OBJECTIVE
The presence of a foot ulcer increases the self-treatment burden imposed on the individual with diabetes. Additionally, this condition increases the cognitive demands needed for adherence to medical recommendations. A potential gap could exist between medical recommendations and the individual’s ability to implement them. Hence, the goal of this study was to examine whether the cognitive profile of people with diabetic foot ulcers differs from that of people with diabetes without this complication.

RESEARCH DESIGN AND METHODS
This was a case-control study. Ninety-nine individuals with diabetic foot ulcers (case patients) and 95 individuals with type 2 diabetes (control subjects) (age range 45–75 years), who were matched for diabetes duration and sex, underwent extensive neuropsychological evaluation using a NeuroTrax computerized battery, digit symbol, and verbal fluency tests. A global cognitive score after standardization for age and education was computed as well as scores in the following six cognitive domains: memory, executive function, reaction time, attention, psychomotor abilities, and estimated premorbid cognition.

RESULTS
Individuals with diabetic foot ulcers had significantly (P &lt; 0.001) lower cognitive scores than individuals with diabetes without this complication, in all tested cognitive domains, excluding estimated premorbid cognition. Individuals with diabetic foot ulcers demonstrated a significant difference between precognitive and current cognitive abilities, as opposed to the nonsignificant difference among control subjects. The differences persisted in multivariable analysis after adjusting for depression and smoking.

CONCLUSIONS
Individuals with diabetic foot ulcers were found to possess fewer cognitive resources than individuals with diabetes without this complication. Thus, they appear to face more self-treatment challenges, while possessing significantly fewer cognitive resources.
Evaluation of Selected Herbicides on Weed Control Efficiency and Yield of Wheat
Authors: Mustari Sobnom , Bari Md. Nasimul , Islam Md. Rafiqul , Karim AJM Sirajul 
Published: May 2016

Background: Weed control is an important issue for the proper growth of wheat. Objective: The purpose of the present study was to see the effect of selected herbicides on weed infestation behavior in wheat field; to determine the effect of herbicides on growth and development of wheat plants, and to evaluate the effect of herbicides on yield performance of wheat. Methodology: A field experiment was conducted at the Experimental Farm of the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh during November to May 2011 -2012. Four herbicides were tested at recommended dose alone and also coupled with supplemental hand weeding in wheat crop. In addition, a weedy check (control) was also imposed for treatment comparison. The herbicides were Pendimethalin, Carfentrazone-ethyl + Isoproturon, Carfentrazone-ethyl and 2,4-D. In this way, nine treatment combinations were arranged in the RCBD experiment with three replications. Result: Carfentrazone-ethyl performed the best in terms of weed control efficiency (79.68%), while Pendimethalin performed the worst (52.74%). Carfentrazone-ethyl + Isoproteuron contributed to the highest tillers per unit area (226.3 m-2) and the highest total dry matter (1342 g m-2). Finally, Carfentrazone-ethyl + Isoproteuron also contributed to the highest grain yield of 3.56 t ha-1 with the highest harvest index of 0.42. Carfentrazone-ethyl + Isoproteuron accompanied by one hand weeding also contributed to statistically identical grain yield of 3.33 t ha-1. Single ingredient Carfentrazone-ethyl alone and when accompanied with one hand weeding also contributed to statistically identical grain yields of 3.26 t ha-1 and 3.46 t ha-1, respectively. Conclusion: The study revealed that, combined ingredient herbicide Carfentrazone-ethyl + Isoproteuron as well as Carfentrazone-ethyl alone might used at field level due to their better weed control efficiency, favourable effect on crop growth and development and higher grain yield.Journal of Science Foundation 2014;12(2):27-33DOI: http://dx.doi.org/10.3329/jsf.v12i2.27734
Effect of Herbicide Dose and Water Management on Weed Control Efficiency and Yield Performance of Boro Rice
Authors: Ahmed Md. Ranju , Bari Md. Nasimul , Haque M. Moynul , Rahman GKM Mustafizur 
Published: May 2016

An experiment was conducted at the Experimental Farm of the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur during November 2011 to May 2012 to determine the effect of pre-emergence herbicide Pretilachlor @ 75%, 100%, 125%, 150%, 175% and 200% of the recommended dose under two water management regime i.e. continuous flooding and field capacity on weed suppression and yield performance of Boro rice cv. BRRIdhan28. One weed free and one control (unweeded) treatment were also imposed for treatment comparison. The experiment was laid down in Split Plot design with three replications. Standard management practices for transplanted rice were followed. Continuous flooding was found to contribute better weed control efficiency than field capacity. At 60 DAT, the highest weed control efficiency of 65.75% was found in the treatment receiving Pretilachlor @ 125% of the recommended dose under continuous flooding and the least (54.76%) was found in the treatment receiving 75% of the recommended dose under field capacity. Continuous flooding contributed to more tillers thanfield capacity, and herbicide up to 125% of the recommended dose enhanced tillering in rice. At 75DAT the highest number of tillers (17.53 hill-1) were found in the plots receiving Pretilachlor @ 125% of the recommended dose under good water management (W1T3), while the lowest (11.10 hill-1) was recorded in W2T6 treatment receiving Pretilachlor @ 200% of the recommended dose under field capacity. The highest tiller mortality (27.90%) was observed in W1T3 treatment, whereas the least (8.06%) was observed in W2T5 treatment receiving the same herbicide @175% of the recommended dose under field capacity. Application of Pretilachlor at recommended dose under continuous flooding contributed to the highest crop dry matter production (1144.60g m-2) thus leading to the highest grain yield of 6.31 t ha-1 being followed by the treatment receiving Pretilachlor @ 125% of the recommended dose under same water management yielding 5.95 t ha-1 along with the highest harvest index of 0.58. Results revealed that Pretilachlor at recommended dose might be considered as viable option for weed management in transplanted Boro rice cultivation for effective weed management and satisfactory grain yield provided that appropriate water management is adopted. Journal of Science Foundation 2014;12(2):39-46DOI: http://dx.doi.org/10.3329/jsf.v12i2.27737
PRODUCTION AND RECOIL LOSS OF COSMOGENIC NUCLIDES IN PRESOLAR GRAINS
Authors: Trappitsch Reto , Leya Ingo 
Published: May 2016

ABSTRACT
Presolar grains are small particles that condensed in the vicinity of dying stars. Some of these grains survived the voyage through the interstellar medium (ISM) and were incorporated into meteorite parent bodies at the formation of the Solar System. An important question is when these stellar processes happened, i.e., how long presolar grains were drifting through the ISM. While conventional radiometric dating of such small grains is very difficult, presolar grains are irradiated with galactic cosmic rays (GCRs) in the ISM, which induce the production of cosmogenic nuclides. This opens the possibility to determine cosmic-ray exposure (CRE) ages, i.e., how long presolar grains were irradiated in the ISM. Here, we present a new model for the production and loss of cosmogenic 3He, 6,7Li, and 21,22Ne in presolar SiC grains. The cosmogenic production rates are calculated using a state-of-the-art nuclear cross-section database and a GCR spectrum in the ISM consistent with recent Voyager data. Our findings are that previously measured 3He and 21Ne CRE ages agree within the (sometimes large) 2σ uncertainties and that the CRE ages for most presolar grains are smaller than the predicted survival times. The obtained results are relatively robust since interferences from implanted low-energy GCRs into the presolar SiC grains and/or from cosmogenic production within the meteoroid can be neglected.
ION DYNAMICS AT A RIPPLED QUASI-PARALLEL SHOCK: 2D HYBRID SIMULATIONS
Authors: Hao Yufei , Lu Quanming , Gao Xinliang , Wang Shui 
Published: May 2016

ABSTRACT
In this paper, two-dimensional hybrid simulations are performed to investigate ion dynamics at a rippled quasi-parallel shock. The results show that the ripples around the shock front are inherent structures of a quasi-parallel shock, and the re-formation of the shock is not synchronous along the surface of the shock front. By following the trajectories of the upstream ions, we find that these ions behave differently when they interact with the shock front at different positions along the shock surface. The upstream particles are transmitted more easily through the upper part of a ripple, and the corresponding bulk velocity downstream is larger, where a high-speed jet is formed. In the lower part of the ripple, the upstream particles tend to be reflected by the shock. Ions reflected by the shock may suffer multiple-stage acceleration when moving along the shock surface or trapped between the upstream waves and the shock front. Finally, these ions may escape further upstream or move downstream; therefore, superthermal ions can be found both upstream and downstream.
Trois changements « sismiques » dans l’économie mondiale et leurs enjeux de politique économique
Authors: Nishimura Kiyohiko G. 
Published: May 2016

Trois changements bouleversent l’économie mondiale : (1) le ralentissement persistant causé par les bulles immobilières, les récessions et les crises financières qui s’ensuivent, (2) les technologies de l’information et de la communication qui deviennent défavorables à l’emploi et (3) la transition d’une phase « d’atout démographique », avec une population jeune et croissante, vers une phase de « fardeau démographique », avec une population vieillissante. Ces changements radicaux s’accompagnent d’effets à court et à long terme, ainsi que d’importantes répercussions sur le plan politique. Tout d’abord, la demande globale est généralement plus faible. En outre, la demande globale devient moins réceptive aux plans de relance macroéconomique classiques. Deuxièmement, de nombreuses économies perdent en flexibilité et, par conséquent, leur efficacité diminue. Troisièmement, étant donné que la politique monétaire conventionnelle se révèle moins efficace, les banques centrales s’appuient de plus en plus sur une politique de bilan (politique non conventionnelle) en tant qu’outil de stabilisation. Enfin, et c’est le point le plus important, l’incertitude est particulièrement exacerbée. Cette incertitude accrue représente un défi de taille pour les responsables politiques. Classification JEL : E43, E58, G01, J11, J24.
L’assouplissement quantitatif : un défi pour l’épargne à long terme et la sécurité financière des ménages
Authors: Thimann Christian 
Published: May 2016

Les politiques de quantitative easing ont de lourdes conséquences potentielles sur la sécurité financière des ménages. Celle-ci requiert de solides garanties en capital pour l’épargne à long terme des ménages afin de leur permettre de prévoir leurs retraites ou l’achat d’actifs coûteux, comme le logement. Les compagnies d’assurances au travers de leur activité d’assurance-vie sont les intermédiaires financières qui, traditionnellement, leur offrent de telles garanties. Or cet article met trois points en évidence : premièrement, si les taux d’intérêt à long terme sont nuls, les ménages pourront difficilement se procurer des garanties d’épargne à long terme car les compagnies d’assurances seront incapables de les leur fournir ; deuxièmement, les épargnants à long terme feront face à un problème de rattrapage, la rentabilité de leur épargne étant inférieure à l’augmentation des prix des soins de santé et de l’immobilier, leurs deux principaux objectifs à long terme ; troisièmement, les coûts croissants de l’habitat urbain entraînent l’obligation de consacrer une part croissante des revenus aux dépenses de logement, au détriment d’une allocation plus productive pour l’économie. Classification JEL : E21, E43, G22, I13, R21.
L’internationalisation du renminbi : enjeux et limites des réformes institutionnelles
Authors: Faudot Adrien 
Published: May 2016

L’internationalisation du renminbi (RMB) a focalisé l’attention de nombreux universitaires, économistes et politologues, depuis la fin des années 2000. Les données disponibles aux chercheurs font état d’un développement de l’usage du RMB à l’échelle internationale. Cet article a un double objectif : dans un premier temps, exposer les évolutions qualitatives de la monnaie chinoise, en analysant les modifications du cadre institutionnel du RMB. Dans une seconde section, il interroge les ambitions et les limites de la stratégie de la Chine d’internationalisation de sa monnaie. À ces fins, ce travail se penche sur la littérature qui s’est largement répandue sur le sujet ces dernières années. Dans la mesure où l’émergence monétaire internationale de la Chine est un processus conflictuel à la fois au niveau national et international, générateur de tensions avec d’autres puissances, en premier lieu les États-Unis, cet article questionne à la fois la volonté et la capacité de la Chine à surmonter les obstacles à l’internationalisation de sa monnaie. Classification JEL : E42, F31, F33, F40, F55.
Négocier la distance institutionnelle Discrimination positive et interactions dans une salle de classe
Authors: Fernández-Vavrik Germán 
Published: May 2016

Un défi clé pour les acteurs engagés dans des politiques de discrimination positive est de négocier la distance institutionnelle. Il est nécessaire, dans les activités quotidiennes, de marquer l’horizon et les limites du traitement préférentiel adressé aux bénéficiaires, victimes de la discrimination et des inégalités sociales. Cet article rend compte de l’accomplissement de la distance institutionnelle dans un programme de discrimination positive argentin adressé à des jeunes amérindiens huarpes et d’origine rurale. Le traitement préférentiel – trait essentiel de la discrimination positive – de ce programme de l’Université de Cuyo se réalise concrètement par des pratiques plus proches de la sollicitude que du soutien scolaire. En ayant recours à l’analyse de mes enregistrements audiovisuels, je soutiens que l’expérience des acteurs du programme s’organise par un principe interactionnel et institutionnel fondamental. La routine du programme s’appuie sur la réalisation d’« alternances interactionnelles » permettant aux enseignants de se rapprocher des boursiers à tout moment en préservant le droit de revenir à une distance institutionnelle ordinaire.
Ocular Findings in Children With 22q11.2 Deletion Syndrome
Authors: Gokturk Bahar , Topcu-Yilmaz Pinar , Bozkurt Banu , Yildirim Mahmut Selman , Guner Sukru Nail , Sayar Esra Hazar , Reisli Ismail 
Published: May 2016

Purpose:
To identify the ocular features of children diagnosed as having 22q11.2 deletion syndrome in a Turkish population, which is the most common microdeletion syndrome with a wide range of facial and ocular abnormalities.

Methods:
Sixteen children aged between 4 months and 18 years with a microdeletion in chromosome 22q11.2 underwent a detailed ophthalmological examination including uncorrected and best corrected visual acuity testing, stereoscopic vision examination, biomicroscopic and indirect fundus examination, and ocular motility testing.

Results:
All patients had at least one ocular abnormality. The major abnormalities were eyelid abnormalities (eye hooding, narrow palpebral fissure, telecanthus, hypertelorism, sparse and thin eyebrows and eyelashes, blepharitis, and distichiasis), posterior embryotoxon, and tortuous retinal vessels in at least half of the patients. Other ophthalmological disorders were refractive errors, iris remnants, and strabismus.

Conclusions:
The chromosome 22q11.2 deletion syndrome is associated with a wide range of ocular disorders, which necessitates a comprehensive eye examination for appropriate treatment and follow-up. Ocular findings sometimes can provide a clue to the diagnosis of 22q11.2 deletion.

[
J Pediatr Ophthalmol Strabismus
. 2016;53(4):218–222].