bluuebunny/crossref_metadata_2025_split huggingface dataset:
The contributions of mindfulness meditation on burnout, coping strategy, and job satisfaction: Evidence from Thailand
Authors: Charoensukmongkol Peerayuth 
Published: May 2014

AbstractThe present study examined the contributions of mindfulness meditation practice on job burnout, a choice of stress coping styles, and job satisfaction. The online survey data were obtained from 93 meditation practitioners and 54 non-practitioners in Thailand (total n = 147). Results from partial least squares regression suggested that respondents who had regularly practiced mindfulness meditation tended to report lower burnout. In addition, they tended to adopt more problem-focused coping and less emotion-focused coping in order to deal with work-related stress. The author also found that regular mindfulness meditation practice also contributed indirectly to higher job satisfaction.
Ecological Risk of Live Bait Fisheries: A New Angle on Selective Fishing
Authors: Drake D Andrew R , Mandrak Nicholas E 
Published: May 2014

ABSTRACT
The use of live baitfish is a cultural norm in many jurisdictions across North America. Because baitfish are often harvested from mixed stocks in the wild, the potential for bycatch exists, leading to the inadvertent relocation of nontarget species via distribution networks and anglers; therefore, like many fisheries, core issues revolve around selective fishing. We assess selectivity of bait fisheries in Ontario, focusing on the prevalence of bycatch within the commercial supply chain and the propensity for nontarget species introductions by anglers. Selection for target stocks was strong; however, species assemblages in retail tanks and angler purchases included game, imperiled, invasive, and other nontarget species. The combination of bycatch, a large volume of angling trips, and risky angler behavior results in high probabilities of introducing the suite of nontarget species contained incidentally. Pathway approaches to management provide opportunities to increase selectivity, manage the risk of species introductions, and sustain the integrity of bait operations throughout North America.
RESUMEN
el uso de carnada viva es una norma cultural en varias jurisdicciones de Norte América. Debido a que los peces que se utilizan como carnada a veces son capturados junto con una mezcla de stocks silvestres, existe el potencial de que se vuelvan fauna de acompañamiento, lo que tiene como consecuencia que especies no objetivo sean reubicadas de forma inadvertida a través pescadores y de redes de distribución; por esta razón, como sucede en muchas pesquerías, el problema medular gira en torno a la pesca selectiva. En este trabajo se evalúa la selectividad de las pesquerías de carnada en Ontario, Canadá, haciendo enfasis en la prevalencia de la fauna de acompañamiento en la cadena productiva y en la propensión que existe por parte de los pescadores a reubicar especies no objetivo. La selectividad que existe para los stocks objetivo es intensa, sin embargo las asociaciones de peces que comercializan los pescadores incluyen especies de pesca deportiva, especies en peligro, especies invasivas y otras especies no objetivo. La combinación de fauna de acompañamiento, una enorme cantidad de viajes de pesca y un comportamiento riesgoso por parte de los pescadores, da como resultado una alta probabilidad de introducir una amplia gama de especies no objetivo que son contenidas incidentalmente. El manejo utilizando corredores, podria incrementar la selectividad, controlar la introducción de especies y mantener la integridad de las operaciones pesqueras con carnada a lo largo de Norte América.
Identification and functional analysis of peroxiredoxin isoforms in Euglena gracilis
Authors: Tamaki Shun , Maruta Takanori , Sawa Yoshihiro , Shigeoka Shigeru , Ishikawa Takahiro 
Published: May 2014

Abstract
Euglena gracilis lacks catalase and contains ascorbate peroxidase (APX) which is localized exclusively in the cytosol. Other enzymes that scavenge reactive oxygen species (ROS) in Euglena have not yet been identified; therefore, ROS metabolism, especially in organelles, remains unclear in Euglena. The full-length cDNAs of four Euglena peroxiredoxins (EgPrxs) were isolated in this study. EgPrx1 and -4 were predicted to be localized in the cytosol, and EgPrx2 and -3 in plastids and mitochondria, respectively. The catalytic efficiencies of recombinant EgPrxs were similar to those of plant thiol-peroxidases, but were markedly lower than those of APX from Euglena. However, transcript levels of EgPrx1, -2, and -3 were markedly higher than those of APX. The growth rate of Euglena cells, in which the expression of EgPrx1 and -4 was suppressed by gene silencing, was markedly reduced under normal conditions, indicating physiological significance of Prx proteins.
Efficient screening of environmental isolates for Saccharomyces cerevisiae strains that are suitable for brewing
Authors: Fujihara Hidehiko , Hino Mika , Takashita Hideharu , Kajiwara Yasuhiro , Okamoto Keiko , Furukawa Kensuke 
Published: May 2014

Abstract
We developed an efficient screening method for Saccharomyces cerevisiae strains from environmental isolates. MultiPlex PCR was performed targeting four brewing S. cerevisiae genes (SSU1, AWA1, BIO6, and FLO1). At least three genes among the four were amplified from all S. cerevisiae strains. The use of this method allowed us to successfully obtain S. cerevisiae strains.
Low-temperature catalyst activator: mechanism of dense carbon nanotube forest growth studied using synchrotron radiation
Authors: Takashima Akito , Izumi Yudai , Ikenaga Eiji , Ohkochi Takuo , Kotsugi Masato , Matsushita Tomohiro , Muro Takayuki , Kawabata Akio , Murakami Tomo , Nihei Mizuhisa , Yokoyama Naoki 
Published: May 2014

The mechanism of the one-order-of-magnitude increase in the density of vertically aligned carbon nanotubes (CNTs) achieved by a recently developed thermal chemical vapor deposition process was studied using synchrotron radiation spectroscopic techniques. In the developed process, a Ti film is used as the underlayer for an Fe catalyst film. A characteristic point of this process is that C2H2feeding for the catalyst starts at a low temperature of 450°C, whereas conventional feeding temperatures are ∼800°C. Photoemission spectroscopy using soft and hard X-rays revealed that the Ti underlayer reduced the initially oxidized Fe layer at 450°C. A photoemission intensity analysis also suggested that the oxidized Ti layer at 450°C behaved as a support for nanoparticle formation of the reduced Fe, which is required for dense CNT growth. In fact, a CNT growth experiment, where the catalyst chemical state was monitoredin situby X-ray absorption spectroscopy, showed that the reduced Fe yielded a CNT forest at 450°C. Contrarily, an Fe layer without the Ti underlayer did not yield such a CNT forest at 450°C. Photoemission electron microscopy showed that catalyst annealing at the conventional feeding temperature of 800°C caused excess catalyst agglomeration, which should lead to sparse CNTs. In conclusion, in the developed growth process, the low-temperature catalyst activation by the Ti underlayer before the excess Fe agglomeration realised the CNT densification.
Evolution of the Chinese rural-urban migrant labor market from 2002 to 2007
Authors: Frank Qu Zhaopeng , Zhao Zhong 
Published: May 2014

Purpose
– The purpose of this paper is to study the dynamic change of the migrant labor market in China from 2002 to 2007 using two comparable data sets.

Design/methodology/approach
– To understand the factors behind the wage change, the authors use the Oaxaca-Blinder decomposition (Oaxaca, 1973; Blinder, 1973) method to study the hourly wage change over this five-year period.

Findings
– The focus is on the rural-urban migration decision, the wage structure of migrants, the labor market segmentation between migrants and urban natives, and the changes of these aspects from 2002 to 2007. The paper finds that prior migration experience is a key factor for the migration decision of rural household members, and its importance keeps increasing from 2002 to 2007. The results show that there is a significant increase in wages among both migrants and urban natives over this five-year period, but migrants have enjoyed faster wage growth, and most of the increase of wages among migrants can be attributed to the increase of returns to their characteristics. The authors also find evidence suggesting convergence of urban labor markets for migrants and for urban natives during this five-year period.

Research limitations/implications
– In order to make the 2002 and 2007 data sets comparable, the authors had to restrict the observations with fixed residence only, and can only include seven cities. These limit the representativeness of the sample. When interpret the findings in this paper, it is important to keep this in mind.

Originality/value
– Due to the scarcity of data, there are few studies on the dynamics of the migrating population and the migrant labor market. Since the urban natives and migrants are still segmented in the labor market, the migrant labor market may have its own characteristics, and also, because of the increasing importance of the migrants in Chinese society, knowledge of the evolution of the migrant labor market is crucial for grasping the whole story behind the Chinese economic miracle.
Hedging effectiveness of weather index-based insurance in China
Authors: Pelka Niels , Musshoff Oliver , Finger Robert 
Published: May 2014

Purpose
– Maize production in China is exposed to pronounced yield risks, in particular weather risk, which is one of the most important and least controllable sources of risk in agriculture. The purpose of this paper is to analyze the extent to which weather index-based insurance can contribute to reducing the revenue risk in maize production caused by yield variations. An average farm producing maize is analyzed for each of eight Chinese provinces, six of which are part of the Northern Plains of China.

Design/methodology/approach
– Data are based on the Statistical Yearbook of China and the Chinese Meteorological Administration. The used method of insurance pricing is burn analysis. Hedging effectiveness of precipitation index-based insurance is measured by the relative reduction of the standard deviation (SD) and the Value at Risk of maize revenues.

Findings
– Results reveal that precipitation index-based insurance can cause a reduction of up to 15.2 percent of the SD and 38.7 percent of the Value at Risk with a 90 percent confidence level of maize revenues in the study area. However, there are big differences in the hedging efficiencies of precipitation index-based insurance measured at different weather stations in the various provinces. Therefore, it is recommended for insurance providers to analyze the hedging effectiveness of weather index-based insurance with regard to the geographical location of their reference weather station if they would like to offer weather index-based insurance products.

Research limitations/implications
– The absence of individual, long-term yield data in the study area prevents the evaluation of risk on individual farms. Thus, the hedging effectiveness can only be analyzed on an aggregated level of yield data and can rather be modeled for an average farm of a particular province.

Originality/value
– To the author's knowledge, this paper is the first that investigates the hedging effectiveness of precipitation index-based insurance designed for reducing revenue risk of maize production in eight Chinese provinces.
Drive optimization of a pulsatile total artificial heart
Authors: Pohlmann André , Hameyer Kay 
Published: May 2014

Purpose
– Total artificial hearts (TAHs) are required for the treatment of cardiovascular diseases. In order to replace the native heart a TAH must provide a sufficient perfusion of the human body, prevent blood damage and meet the implantation constraints. Until today there is no TAH on the market which meets all constraints. So the purpose of this paper is to design a drive in such a way that the operated TAH meets all predefined constraints.

Design/methodology/approach
– The drive is designed in terms of weight and electric losses. In setting up a cost function containing those constraints, the drive design can be included in a optimization process. When reaching the global minimum of the cost function the optimum drive design is found. In this paper the optimization methods manual parameter variation and differential evolution are applied.

Findings
– At the end of the optimization process the drive's weight amounts to 460 g and its mean losses sum up to 10 W. This design meets all predefined constraints. Further it is proposed to start the optimization process with a parameter variation to reduce the amount of optimization parameters for the time consuming differential evolution algorithm.

Practical implications
– This TAH has the potential to provide a therapy for all patients suffering from cardiovascular diseases as it is independent of donor organs.

Originality/value
– The optimization-based design process yields an optimum drive for a TAH in terms of weight and electrical losses. In this way a TAH is developed which meets all implantation constraints and provides sufficient perfusion of the human body at the same time.
Optimization of EMI filters for electrical drives in aircraft
Authors: Touré Baidy , Gerbaud Laurent , Schanen Jean-Luc , Ruelland Régis 
Published: May 2014

Purpose
– The purpose of this paper is to deal with the design of passive filter for power electronics voltage inverters used in aircraft electrical drives (a permanent magnet synchronous machine fed by a six-phase voltage inverter with PMW control), using optimization for both sizing and sensibility analyses.

Design/methodology/approach
– The approach is generic. An aid allows to modify easily the frequency model and so to check various study cases, and to carry out the filter optimization for different topologies or control strategies.

Findings
– The approach is generic. An aid allows to modify easily the frequency model and so to check various study cases, and to carry out the filter optimization for different topologies or control strategies.

Research limitations/implications
– The power electronics load is supposed to be a set of predefined harmonic sources, obtained by experiment or time simulation plus fast fourier transformation before the optimization process.

Practical implications
– The problem has numerous constraints on the components, mainly technological constraints. The volume is minimized, respecting electromagnetic standards and an electro magnetic interference filter prototype has been made.

Originality/value
– The frequency model is automatically generated. A complex aircraft application has been studied thanks to the approach. Several sensibility analyses have been carried out. An EMC filter has been sized and an experimental prototype has been made, comforting the sizing by optimization.
n-level output space mapping for electromagnetic design optimization
Authors: Ben Ayed Ramzi , Brisset Stéphane 
Published: May 2014

Purpose
– The aim of this paper is to reduce the evaluations number of the fine model within the output space mapping (OSM) technique in order to reduce their computing time.

Design/methodology/approach
– In this paper, n-level OSM is proposed and expected to be even faster than the conventional OSM. The proposed algorithm takes advantages of the availability of n models of the device to optimize, each of them representing an optimal trade-off between the model error and its computation time. Models with intermediate characteristics between the coarse and fine models are inserted within the proposed algorithm to reduce the number of evaluations of the consuming time model and then the computing time. The advantages of the algorithm are highlighted on the optimization problem of superconducting magnetic energy storage (SMES).

Findings
– A major computing time gain equals to three is achieved using the n-level OSM algorithm instead of the conventional OSM technique on the optimization problem of SMES.

Originality/value
– The originality of this paper is to investigate several models with different granularities within OSM algorithm in order to reduce its computing time without decreasing the performance of the conventional strategy.
Optimal household energy management using V2H flexibilities
Authors: Dargahi Ardavan , Ploix Stéphane , Soroudi Alireza , Wurtz Frédéric 
Published: May 2014

Purpose
– The use of energy storage devices helps the consumers to utilize the benefits and flexibilities brought by smart networks. One of the major energy storage solutions is using electric vehicle batteries. The purpose of this paper is to develop an optimal energy management strategy for a consumer connected to the power grid equipped with Vehicle-to-Home (V2H) power supply and renewable power generation unit (PV).

Design/methodology/approach
– The problem of energy flow management is formulated and solved as an optimization problem using a linear programming model. The total energy cost of the consumer is optimized. The optimal values of decision variables are found using CPLEX solver.

Findings
– The simulation results demonstrated that if the optimal decisions are made regarding the V2H operation and managing the produced power by solar panels then the total energy payments are significantly reduced.

Originality/value
– The gap that the proposed model is trying to fill is the holistic determination of an optimal energy procurement portfolio by using various embedded resources in an optimal way. The contributions of this paper are in threefold as: first, the introduction of mobile storage devices with a periodical availability depending on driving schedules; second, offering a new business model for managing the generation of PV modules by considering the possibility of grid injection or self-consumption; third, considering Real Time Pricing in the suggested formulation.
“I don’t really like the pub […]”: reflections on young people and pre-loading alcohol
Authors: Barton Adrian , Husk Kerryn 
Published: May 2014

Purpose
– Recent research (Barton and Husk, 2012) suggested that in the UK we are seeing a shift from the traditional “pub-club” drinking pattern to a “home-pub-club” pattern. In the latter model often excessive early evening drinking is occurring in the private sphere in the absence of external control, leading to problems when the drinkers enter the public sphere. Moreover, pre-loading has become a key aspect in the drinking patterns of many of the Night Time Economy (NTE) population with around 60-70 per cent of people drinking some alcohol prior to going out. In the previous work (Barton and Husk, 2012) 50 per cent of people were drinking significant quantities of alcohol prior to entering the NTE. The paper aims to discuss these issues.

Design/methodology/approach
– However, whilst these statistics give a general overview of patterns of drinking, they fail to provide the depth required to uncover potential mechanisms. It is generally assumed that the driving force behind this cultural shift in alcohol use is price. However, the feeling is that this is too simplistic. To explore this, the authors conducted a set of in-depth qualitative interviews with young people to ascertain why pre-loading is such an entrenched aspect of their drinking culture (n=20).

Findings
– This paper provides the preliminary findings of that research. It shows, amongst other things, that beyond the price factor many young people seemingly need alcohol to cope with the NTE; that they prefer the safety and control of the environment that drinking in the private sphere provides; and that some of them (despite drinking alcohol) simply do not like pubs.

Originality/value
– The paper adds to the discourse on pre-loading by suggesting richly described underlying mechanisms of action.
Effects of chemical reaction and thermal radiation on unsteady double diffusive convection
Authors: Rashad A.M. , Elsayed Ahmed Sameh , Ahmed Mansour Mohamed 
Published: May 2014

Purpose
– The purpose of this numerical paper is to investigate the simulation of an unsteady double diffusive natural convection in square enclosure filled with a porous medium with various boundary conditions in the presence of thermal radiation and chemical reaction effects.

Design/methodology/approach
– In this study, the governing dimensionless equations were written using the Brinkman Forchheimer extended Darcy model. They are numerically solved by using finite difference method by applying adiabatic boundary condition in top surface. The bottom surface is maintained at uniform temperature and concentration and left and right vertical walls are cooled.

Findings
– Results are presented by streamlines, isotherms, temperature and concentration contours profiles as well as the local Nusselt number and Sherwood numbers for different values of the governing parameters such as Darcy number, buoyancy ratio, Rayleigh number, thermal radiation parameter and chemical reaction parameter. It is found that that both of the local Nusselt and Sherwood numbers increase as the Rayleigh number, buoyancy ratio and Darcy number increase. Moreover, increasing the thermal radiation effects leads to a pronounced increase in the local Nusselt number, while the opposite behavior is displayed by the local Sherwood number. Furthermore, the local Sherwood number increases and the local Nusselt number decrease when the chemical reaction parameter increase.

Originality/value
– The originality of this study is the square cavity with various boundary conditions filled with a porous medium with thermal radiation and chemical reaction effects.
Analytic approximate solutions for time-dependent flow and heat transfer of a Sisko fluid
Authors: Khan Masood , Shahzad Azeem , Anjum Asia , M. Mahomed Fazal 
Published: May 2014

Purpose– The purpose of this paper is to find analytic approximate solutions for time-dependent flow and heat transfer of a Sisko fluid.Design/methodology/approach– The homotopy analysis method is used to find a family of travelling wave solutions of the governing non-linear problem.Findings– The effects of different parameters on the velocity and temperature profiles are shown graphically.Originality/value– The analytic solutions of the system of non-linear ordinary differential equations are constructed in the series form for various values of the power index.
Projection method for high-order compact schemes for low Mach number flows in enclosures
Authors: Tyliszczak Artur 
Published: May 2014

Purpose
– Variable density flows play an important role in many technological devices and natural phenomena. The purpose of this paper is to develop a robust and accurate method for low Mach number flows with large density and temperature variations.

Design/methodology/approach
– Low Mach number approximation approach is used in the paper combined with a predictor-corrector method and accurate compact scheme of fourth and sixth order. A novel algorithm is formulated for the projection method in which the boundary conditions for the pressure are implemented in such a way that the continuity equation is fulfilled everywhere in the computational domain, including the boundary nodes.

Findings
– It is shown that proposed implementation of the boundary conditions considerably improves a solution accuracy. Assessment of the accuracy was performed based on the constant density Burggraf flow and for two benchmark cases for the natural convection problems: steady flow in a square cavity and unsteady flow in a tall cavity. In all the cases the results agree very well with exemplary solutions.

Originality/value
– A staggered or half-staggered grid arrangement is usually used for the projection method for both constant and low Mach number flows. The staggered approach ensures stability and strong pressure-velocity coupling. In the paper a high-order compact method has been implemented in the framework of low Mach number approximation on collocated meshes. The resulting algorithm is accurate, robust for large density variations and is almost free from the pressure oscillations.