bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intermittent hypoxia in obstructive sleep apnoea mediates insulin resistance through adipose tissue inflammation
Authors: Murphy Aoife M. , Thomas Amandine , Crinion Sophie J. , Kent Brian D. , Tambuwala Murtaza M. , Fabre Aurelie , Pepin Jean-Louis , Roche Helen M. , Arnaud Claire , Ryan Silke 
Published: April 2017

Obstructive sleep apnoea (OSA) is increasingly associated with insulin resistance. The underlying pathophysiology remains unclear but intermittent hypoxia (IH)-mediated inflammation and subsequent dysfunction of the adipose tissue has been hypothesised to play a key role.We tested this hypothesis employing a comprehensive translational approach using a murine IH model of lean and diet-induced obese mice, an innovative IH system for cell cultures and a tightly controlled patient cohort.IH led to the development of insulin resistance in mice, corrected for the degree of obesity, and reduced insulin-mediated glucose uptake in 3T3-L1 adipocytes, associated with inhibition of the insulin-signalling pathway and downregulation of insulin-receptor substrate-1 mRNA. Providing mechanistic insight, IH induced a pro-inflammatory phenotype of visceral adipose tissue in mice with pro-inflammatory M1 macrophage polarisation correlating with the severity of insulin resistance. Complimentaryin vitroanalysis demonstrated that IH led to M1 polarisation of THP1-derived macrophages. In subjects without comorbidities (n=186), OSA was independently associated with insulin resistance. Furthermore, we found an independent correlation of OSA severity with the M1 macrophage inflammatory marker sCD163.This study provides evidence that IH induces a pro-inflammatory phenotype of the adipose tissue, which may be a crucial link between OSA and the development of insulin resistance.
Computed tomographic findings in subjects who died from respiratory disease in the National Lung Screening Trial
Authors: Pompe Esther , de Jong Pim A. , Lynch David A. , Lessmann Nikolas , Išgum Ivana , van Ginneken Bram , Lammers Jan-Willem J. , Mohamed Hoesein Firdaus A.A. 
Published: April 2017

We evaluated the prevalence of significant lung abnormalities on computed tomography (CT) in patients who died from a respiratory illness other than lung cancer in the National Lung Screening Trial (NLST).In this retrospective case–control study, NLST participants in the CT arm who died of respiratory illness other than lung cancer were matched for age, sex, pack-years and smoking status to a surviving control. A chest radiologist and a radiology resident blinded to the outcome independently scored baseline CT scans visually and qualitatively for the presence of emphysema, airway wall thickening and fibrotic lung disease. The prevalence of CT abnormalities was compared between cases and controls by using chi-squared tests.In total, 167 participants died from a respiratory cause other than lung cancer. The prevalence of severe emphysema, airway wall thickening and fibrotic lung disease were 28.7%versus4.8%, 26.9%versus13.2% and 18.6%versus0.5% in cases and controls, respectively. Radiological findings were significantly more prevalent in deaths compared with controls (all p<0.001).CT-diagnosed severe emphysema, airway wall thickening and fibrosis were much more common in NLST participants who died from respiratory disease, and CT may provide an additional means of identifying these diseases.
Segmentation of Spatially Dependent Geographical Units: Model and Application
Authors: Govind Rahul , Chatterjee Rabikar , Mittal Vikas 
Published: April 2017

We develop and test a new methodology that assigns geographical units (such as ZIP codes) to market segments by simultaneously considering bases of segmentation, such as customer attitudes and needs, such that the resulting segments display a high level of spatial concentration. Such concentrated segments are managerially desirable because of the logistical and administrative efficiencies created by implementing spatially concentrated segment-level strategies. The suggested approach captures spatial dependence flexibly while allowing us to identify managerially actionable segments that effectively balance homogeneity and spatial concentration. An illustrative empirical application demonstrates how the results can be utilized to derive consumer insights for actionable segmentation strategies. A Monte Carlo simulation and an assessment of the quality of the segments obtained from the empirical application support the value of the proposed spatially dependent segmentation method. This paper was accepted by Pradeep Chintagunta, marketing.
Differentiating consumption contexts as a basis for diversity in food design education: Eating in or eating out?
Authors: Schifferstein Hendrik N. J. 
Published: April 2017

Abstract
Designers can play a significant role in providing the world population with food that is produced in a sustainable way, is tasty and healthy and can form the centrepiece in culinary experiences. However, design students will need to acquire more knowledge specific for the food domain if they want to qualify as cooperation partners for other food professionals. In addition, because the food domain is vast and diverse, food design education could focus on various application domains, resulting in design students with different profiles.
In this article, I make a distinction between designing for a person who consumes food at home or is eating out. The first case emphasizes the food itself in the home situation, including food production, packaging, food buying, shelf life, preparation, serving, handling leftovers and waste disposal. In the second case, the consumer’s meal experience depends on the atmosphere in the restaurant, interactions with serving staff, the offerings on the menu and quality of the dish. In addition, several processes take place outside the consumer’s view, such as food preparation, storage, personnel management and business administration.
Based on these topics and comparison with adjoining educational curricula, a list of training topics is derived. For all food designers, this consists of general design capabilities, food science, cooking skills, consumer insights and sustainability issues. In addition, the ‘eating at home’ designer should gather knowledge on agricultural production, food technology and food industry business, whereas the ‘eating out’ designer will need to focus mainly on food product knowledge, culinary technology, equipment engineering, restaurant design, consumer dining behaviour and hospitality business.
Una experiencia vivida en aula: enseñar y aprender a trabajar con estadística desde una perspectiva crítica
Authors: Esteley Cristina , Magallanes Adriana 
Published: April 2017

Una experiencia vivida en aula: enseñar y aprender a trabajar con estadística desde una perspectiva crítica Cristina Esteley y Adriana Magallanes ResumenEn este artículo se presenta una descripción de una experiencia escolar realizada en una escuela secundaria de una localidad de la provincia de Córdoba donde la segunda autora se desempeña como profesora de matemática. La experiencia toma como eje el trabajo con proyectos de modelización matemática a partir de un problema de naturaleza interdisciplinaria seleccionado por estudiantes de 14–15 años de edad. Si bien la experiencia conforma un proyecto pedagógico, creado y sostenido esencialmente con la colaboración de tres profesores de enseñanza secundaria, toma características muy particulares debido al aporte sustancial de los estudiantes, otros investigadores, docentes y miembros de la comunidad local.Se presentan algunos supuestos teóricos que sustentan el proyecto pedagógico, detalles de la planificación, gestión del trabajo, pormenores del trabajo bajo el formato curricular de «Observatorio» y algunos resultados logrados a partir de la implementación del mismo.
The Assessment of the Calving Interval at Cows in the Mountain Area
Authors: Manea Roger Catalin 
Published: April 2017

Abstract
For an effective, in determining the index „Calving Interval“ we take into consideration the two components of each interval: service period (SP) and duration of gestation (DG). In order to obtain the optimal interval between calving (365 days) the cow should become gestant at 81 days after calving, because along with 284-285 days, length of gestation, to provide 305 days for normal lactation and 60 days for the rest of the breast enough for the formation of the udder for the next lactation.
The frequency curve has a single peak, 43.5% placed around 361 days after which the frequencies fall along a period of time long enough. The probably average of „CI“ of 360 days, which corresponds to the class with highest frequency, shows that the fecundity is good and that it can provide a rest for brest for 55 days in the case of normal lactations of 305 days.
The 42 days difference between the arithmetic mean of the „CI“ (402 days ago) and the likely media (360 days) is caused by the presence of breeding disorders. The large values of the coefficient of variance is due to the very long ranges as well as very short intervals of calving interval.
Issues of Triticale Crop Quality in Transylvania
Authors: Nitu Iulia , Nitu Adrian Cristinel 
Published: April 2017

Abstract
The paper work aims to present the quality of triticale crop grown in Transylvania and to encourage the cultivation of this species on large areas in Romania. Following the project results, is found the adaptability of triticale cultivation under different biotope conditions and the benefits resulting from this culture.
It was found upward trend in areas under triticale in last years of the study, in more counties from Transylvania.
Reduced diophantine quadruples with the binary recurrence Gn = AGn–1 – Gn–2
Authors: Alp Murat , Irmak Nurettin , Szalay László 
Published: April 2017

Abstract
Given a positive integer A ≠ 2. In this paper, we show that there do not exist two positive integer pairs {a,b} ≠ {c,d} such that the values of ac+1, ad+1 and bc+1, bd+1 are the terms of the sequence {Gn}n≥0 which satisfies the recurrence relation Gn = AGn-1 - Gn-2 with the initial values G0 = 0, G1 = 1.
On the efficiency of some p-groups
Authors: Ateş Fırat 
Published: April 2017

Abstract
Let p be a prime number. In this paper, we work on the efficiency of the p-groups G1 and G2 defined by the presentations,

here α ≥ β > γ ≥ 1 and

where α ≥ 2γ, β > γ ≥ 1 and α + β > 3. For example, if we let p = 2, then by [1], the groups defined by these presentations becomes 2-groups. It is known that these groups play an important role in the theory of groups of nilpotency class 2.
Inexact Inertial Proximal Algorithm for Maximal Monotone Operators
Authors: Khatibzadeh Hadi , Ranjbar Sajad 
Published: April 2017

Abstract
In this paper, convergence of the sequence generated by the inexact form of the inertial proximal algorithm is studied. This algorithm which is obtained by the discretization of a nonlinear oscillator with damping dynamical system, has been introduced by Alvarez and Attouch (2001) and Jules and Maingé (2002) for the approximation of a zero of a maximal monotone operator. We establish weak and strong convergence results for the inexact inertial proximal algorithm with and without the summability assumption on errors, under different conditions on parameters. Our theorems extend the results on the inertial proximal algorithm established by Alvarez and Attouch (2001) and rules and Maingé (2002) as well as the results on the standard proximal point algorithm established by Brézis and Lions (1978), Lions (1978), Djafari Rouhani and Khatibzadeh (2008) and Khatibzadeh (2012). We also answer questions of Alvarez and Attouch (2001).
Ingarden mechanical systems with special external forces
Authors: Lungu Otilia , Nimineţ Valer 
Published: April 2017

Abstract
In the present paper we study a remarcable particular case of Finslerian mechanical system, called Ingarden mechanical system. This is defined by a 4-uple ∑IFⁿ = (M, F2, N, Fe) where M is the configuration space, Fn = (M, F, (x, y)) = (M, α, (x, y) + β (x, y)) is an Ingarden space, N is the Lorentz nonlinear connection and are the external forces.
One associates to this system ∑IFⁿ a semispray S, or a dinamical system on the velocity space TM. We write the generalized Maxwell equations for the electromagnetic fields of ∑IFⁿ.
Hop Domination in Graphs-II
Authors: Natarajan C. , Ayyaswamy S.K. 
Published: April 2017

Abstract
Let G = (V;E) be a graph. A set S ⊂ V (G) is a hop dominating set of G if for every v ∈ V - S, there exists u ∈ S such that d(u; v) = 2. The minimum cardinality of a hop dominating set of G is called a hop domination number of G and is denoted by γh(G). In this paper we characterize the family of trees and unicyclic graphs for which γh(G) = γt(G) and γh(G) = γc(G) where γt(G) and γc(G) are the total domination and connected domination numbers of G respectively. We then present the strong equality of hop domination and hop independent domination numbers for trees. Hop domination numbers of shadow graph and mycielskian graph of graph are also discussed.
Complete spacelike hypersurfaces with positive r-th mean curvature in a semi-Riemannian warped product
Authors: Wang Yaning , Liu Ximin 
Published: April 2017

Abstract
In this paper, by supposing a natural comparison inequality on the positive r-th mean curvatures of the hypersurface, we obtain some new Bernstein-type theorems for complete spacelike hypersurfaces immersed in a semi-Riemannian warped product of constant sectional curvature. Generalizing the above results, under a restriction on the sectional curvature or the Ricci curvature tensor of the fiber of a warped product, we also prove some new rigidity theorems in semi-Riemannian warped products. Our main results extend some recent Bernstein-type theorems proved in [12, 13, 14].
Improving Upstream and Downstream Fish Passage at Retis Dam on Hârtibaciu River - Sibiu County (Transylvania)
Authors: Voicu Răzvan , Baki Pete 
Published: April 2017

Abstract
Retis (dam Retis), hydro-technical development like many other transverse hydraulic structures cancel the longitudinal connectivity of Hârtibaciu water course, blocking the migration of different (migrating) species of fish in the river. Also, the lateral connectivity was heavily affected on this water course at a rate of 60%. Therefore, proposing engineering solutions to recover both (lateral and longitudinal) types of connectivity is vital to restore the local ecobiom. The purpose of this article is to establish longitudinal connectivity through an engineering solution that facilitates the fish migration upstream - downstream of Retis dam. This paper proposes an engineered fish passage solution for Retiș Dam on the Hârtibaciu River, using the criteria described in the Water Framework Directive 2000/60/EC document. Anthropogenic barriers located in the Hârtibaciu River disrupt and delay movement of local fish fauna including: Alburnoides bipunctatus (Bloch, 1782), Squalius cephalus (Linnaeus, 1758), Alburnus alburnus (Linnaeus, 1758), Rhodeus amarus (Bloch, 1782), Gobio gobio (Linnaeus, 1758), Romanogobio kessleri (Dybowski, 1862), Barbatula barbatula (Linnaeus, 1758), Barbus meridionalis Risso, 1827 Misgurnus fossilis (Linnaeus, 1758), Cobitis taenia Linnaeus, 1758, Cobitis romanica (Băcescu, 1943), and Cobitis aurata (De Filippi, 1863).
Glass-based coatings on biomedical implants: a state-of-the-art review
Authors: Baino Francesco , Verné Enrica 
Published: April 2017

AbstractBioactive glasses, invented by Prof. Larry L. Hench in the late 1960s, have revolutionized the field of biomaterials as they were shown to tightly bond to both hard and soft living tissues and to stimulate cells towards a path of regeneration and self-repair. However, due to their relatively poor mechanical properties (brittleness, low bending strength and fracture toughness), they are generally unsuitable for load-bearing applications. On the other hand, bioactive glasses have been successfully applied as coatings on the surface of stronger/tougher substrates to combine adequate mechanical properties with high bioactivity and, in some cases, additional extrafunctionalities (e.g. antibacterial properties, drug release). After giving a short overview of the main issues concerning the fabrication of glass coatings, this review provides a state-of-the-art picture in the field and specifically discusses the development of bioactive and hierarchical coatings on 3D porous scaffolds, joint prostheses, metallic substrates (e.g. wires or nails) for orthopedic fixation, polymeric meshes and sutures for wound healing, ocular implants and percutaneous devices.
Cobalt adsorption on the nano-hydroxyapatite matrix: isotherm and kinetic studies
Authors: Narwade V. N. , Khairnar R. S. 
Published: April 2017

Abstract
Cobalt radionuclide is one of the prime contaminants generated during operation of pressurized heavy water. The paper reports the study of cobalt adsorption on hydroxyapatite (HAp) nanoceramic. A modified wet chemical precipitation method is used for HAp synthesis. The HAp nano-material is characterized by XRD, FTIR, TG/DTA, AFM, SEM, and EDAX. Experiments are performed in batches to observe the effect of cobalt adsorption on HAp matrix. The adsorption of cobalt on HAp is examined at room temperature. The isotherm and kinetic studies showed that the Freundlich isotherm and pseudo-second order model are the best choices to describe the nature of adsorption.
An analytical solution to the problem of time-fractional heat conduction in a composite sphere
Authors: Kukla S. , Siedlecka U. 
Published: April 2017

Abstract
An analytical solution to the problem of time-fractional heat conduction in a sphere consisting of an inner solid sphere and concentric spherical layers is presented. In the heat conduction equation, the Caputo time-derivative of fractional order and the Robin boundary condition at the outer surface of the sphere are assumed. The spherical layers are characterized by different material properties and perfect thermal contact is assumed between the layers. The analytical solution to the problem of heat conduction in the sphere for time-dependent surrounding temperature and for time-space-dependent volumetric heat source is derived. Numerical examples are presented to show the effect of the harmonically varying intensity of the heat source and the harmonically varying surrounding temperature on the temperature in the sphere for different orders of the Caputo time-derivative.
Positive output elementary Luo converter for fixed-frequency ZVS operation
Authors: Bright S. J. V. , Ramkumar S. , Anand H. 
Published: April 2017

Abstract
Luo converter is one amid the developed DC-DC converters offering higher voltage gain. Soft-switching techniques, like zero-voltage switching (ZVS), repress switching losses, and hence the system efficiency and the life of the power semiconductor switches are improved. Incorporation of soft switching in fixed-frequency operation of the Luo converters may persuade them in the regulated power supply applications. The existing variable switching frequency solution suffers from a number of problems viz. complexity in filter designing, more electromagnetic interference (EMI), etc. This paper proposes a positive output elementary Luo converter (POELC) involving ZVS with the wherewithal of working in fixed frequency. A comprehensive discussion on the proposed circuit topology is detailed with both simulation and experimental studies. Systematic descriptions of basic POELC, variable-frequency ZVS-POELC, and fixed-frequency ZVS-POELC make an impact on the understanding of related concepts by the researchers in this field.
Minimizing sensor movement in target coverage problem: A hybrid approach using Voronoi partition and swarm intelligence
Authors: Jagtap A. M. , Gomathi N. 
Published: April 2017

AbstractThis paper addresses the major challenges that reside on target coverage problem, which is one among the two primary sub-problems of node deployment problem. In order to accomplish a cost-efficient target coverage, a Voronoi partition-based, velocity added artificial bee colony algorithm (V-VABC) is introduced. The V-VABC is an advancement over the traditional, target-based Voronoi greedy algorithm (TVgreedy). Moreover, the VABC component of V-VABC is a hybrid, heuristic search algorithm developed from the context of ABC and particle swarm optimization (PSO). The V-VABC is an attempt to solve the network, which has an equal number of both sensors and targets, which is a special case of TCOV. Simulation results show that V-VABC performs better than TV-greedy and the classical and base algorithms of V-VABC such as ABC and PSO.
Smallholder farmer’s perceived effects of climate change on crop production and household livelihoods in rural Limpopo province, South Africa
Authors: Ubisi Nomcebo R. , Mafongoya Paramu L. , Kolanisi Unathi , Jiri Obert 
Published: April 2017

AbstractThis study investigated the perceived effects of climate change on crop production and household livelihoods of smallholder farmers in Mopani and Vhembe district, South Africa. Data was collected through a questionnaire administered to 150 smallholder farmers. The questionnaires were complemented by 8 focus group discussions and secondary data. Multinomial logit regression model was used to analyse the factors influencing smallholder farmers’ choice of climate change adaptation strategies. The study findings revealed that subsistence farmers perceived prolonged droughts (56.4%) as the main shock stressing crop production. Droughts often lead to low crop yield and high crop failure (73.3%). In response to the prevailing climatic conditions different gender adopted different strategies, 41% of female farmers adapted by changing planting dates, while male farmers employed crop variety and diversification (35%) and mixed cropping (15%). The smallholder farmers were vulnerable with limited adaptive capacity to withstand climate change due to compromised social, human, physical, natural and financial assets. The results showed that smallholder farmers tend to adapt better when they have access to extension officers (P<0.01). Therefore, it is important for the government to strengthen the relationship between smallholder farmers and extension officers for better climate change adaptation.
Implementation of Non-Destructive Evaluation and Process Monitoring in DLP-based Additive Manufacturing
Authors: Kovalenko Iaroslav , Verron Sylvain , Garan Maryna , Šafka Jiří , Moučka Michal 
Published: April 2017

AbstractThis article describes a method of in-situ process monitoring in the digital light processing (DLP) 3D printer. It is based on the continuous measurement of the adhesion force between printing surface and bottom of a liquid resin bath. This method is suitable only for the bottom-up DPL printers. Control system compares the force at the moment of unsticking of printed layer from the bottom of the tank, when it has the largest value in printing cycle, with theoretical value. Implementation of suggested algorithm can make detection of faults during the printing process possible.