bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimating the social value of higher education: willingness to pay for community and technical colleges
Authors: Blomquist Glenn C. , Coomes Paul A. , Jepsen Christopher , Koford Brandon C. , Troske Kenneth R. 
Published: July 2014

Abstract:Much is known about private financial returns to education in the form of higher earnings. Less is known about how much social value exceeds this private value. Associations between education and socially-desirable outcomes are strong, but disentangling the effect of education from other causal factors is challenging. The purpose of this paper is to estimate the social value of one form of higher education. We elicit willingness to pay for the Kentucky Community and Technical College System (KCTCS) directly and compare our estimate of total social value to our estimates of private value in the form of increased earnings. Our earnings estimates are based on two distinct data sets, one administrative and one from the U.S. Census. The difference between the total social value and the increase in earnings is our measure of the education externality and the private, non-market value combined. Our work differs from previous research by focusing on education at the community college level and by eliciting values directly through a stated-preferences survey in a way that yields a total value including any external benefits. Our preferred estimates indicate the social value of expanding the system exceeds private financial value by at least 25% with a best point estimate of nearly 90% and exceeds total private value by at least 15% with a best point estimate of nearly 60%.
Ethnic Identity, Multiculturalism, and Their Interrelationships: Differences between Jewish and Arab Students
Authors: Hen Meirav , Kraus Eran , Goroshit Marina 
Published: July 2014

Abstract
The present research investigates the differences in attitudes toward multiculturalism and the level of ethnic identification among Arab and Jewish students in Israel. In addition, ethnic group effects on the relationship between the two variables were examined. Based on a sample of 142 college students, the findings indicated that Arab students showed more positive attitudes toward multiculturalism and a higher level of ethnic identity. Furthermore, the ethnic group had a significant effect on the relationships between ethnic identity and multiculturalism. For Jewish students the effect of ethnic identity on overall multiculturalism was significantly negative, while for Arab students it was positive, but not significant. These findings stress the importance of understanding the college multicultural climate at both interpersonal and institutional levels and of assessing its impact on both dominant and non-dominant culture students.
Analysis of trace elements in surface sediments, mussels, seagrass and seawater along the southeastern Adriatic coast – a chemometric approach
Authors: Stanković Slavka , Tanaskovski Bojan , Zlatić Božidarka , Arsenović Milica , Pezo Lato 
Published: July 2014

AbstractSurface sediments, mussels, seagrass, surface and bottom seawater samples were collected from the costal area of the southeastern Adriatic Sea and analyzed in order to determine the concentration and origin of the following elements: Fe, Mn, Zn, Ni, Cu, Ni, Co, As, Cd, Cr and Hg. The complexity of the obtained data was reduced by principal component analysis (PCA) and cluster analysis (CA), methods well known and accepted for the identification of the quality of marine environments. Both PCA and CA analysis were used to discriminate groups of samples according to the similarity of their chemical composition. The results revealed good diversity between the various samples, expressed by their distinctive positions of points in factor space. PCA indicated that the first two PC components explained about 73, 48, 43, 48, and 50 % of the total variance of the data for sediments, mussels, seagrass, and surface and bottom water, respectively. The results showed good discrimination capabilities between the samples taken from different locations, and also different seasons, which was especially evident in the surface and bottom water samples. Simultaneously, PCA/CA analysis of the amounts of trace elements found in the marine organisms could explain the manner of their bioaccumulation.
Effect of titanium nanofiller on the productivity and crystallinity of ethylene and propylene copolymer
Authors: Bakather Omer Yahya , Al-Harthi Mamdouh A. 
Published: July 2014

Abstract
Bis(cyclopentadienyl) zirconium (IV) dichloride of empirical formula C10 H10 Cl2 Zr was used as a catalyst. Doped titania with iron (TiO2/Fe) nanofillers were used to study the effect of nanofillers on ethylene homopolymer and ethylene/propylene copolymer properties. Using titanium dioxide doped with iron (TiO2/Fe) resulted in the increase in the molecular weight (M

w
) of polyethylene and ethylene/propylene copolymer nanocomposites of up to 80% when compared to the neat polymer. The catalyst activity was increased by using TiO2/Fe nanofiller for both ethylene polymerization and ethylene/propylene copolymerization. Besides the investigation of the catalyst activity and the molecular weight (M

w
) of the obtained polymer, molecular weight distribution, copolymer composition, crystallinity and thermal characteristics of polyethylene and polyethylene/polypropylene nanocomposites were also studied. Non-isothermal crystallization kinetics of polyethylene and polyethylene/polypropylene nanocomposites fits well with the Avrami-Erofeev model.
The Rehabilitation of Oncological Patients Presenting Neuropathies
Authors: Micu Elena Claudia , Irsay Laszlo 
Published: July 2014

The International Association for the Study of Pain (IASP 2011) defines neuropathic pain as “the pain caused by an injury or disease of the somatosensory portion of the nervous system”. The central neuropathic pain is defined as “the pain caused by an injury or disease of the central somatosensory central nervous system”, whereas the peripheral neuropathic pain is defined as “the pain caused by an injury or disease of the peripheral somatosensory nervous system”. The peripheral neuropathy describes any affection of the peripheral nervous system. The etiology is vast, there being a number of over 100 possible causes, which causes the global morbidity rate to reach approximately 2.4%. The chronic nature of the pain superposes the everyday routine and leads to the high intake of medication for pain alleviation. The number of cases of neuroplasia has always increased today. This disturbing diagnosis which can potentiate the signs and symptoms of peripheral neuropathy as well as reduce and limit the treatment options associated with neuropathies. The treatment presupposes a multidisciplinary approach, while the solution to prevent complications involves the control of risk factors and pathophysiological treatment. Chemotherapy-induced peripheral neuropathy (CPIN) is a significant disabling symptom that is tightly connected to the administration of neurotoxic cytostatic agents used for the treatment of neoplasia. CPIN compromises the quality of life and produces pain or discomfort. I have sought to produce a presentation of the medicated and physical-kinetic treatment options that have proved their effectiveness during clinical studies or random trials and can be applied to cancer patients presenting with symptoms associated with peripheral neuropathy, namely with neuropathic pain, and support it with arguments
On the structure of [Al(DMSO2)3]3+
Authors: Breza Martin 
Published: July 2014

Abstract
The most stable [Al(DMSO2)3]3+ complex cation in dimethyl sulfone (DMSO2, (CH3)2SO2) has D3 symmetry with twofold axes in Al-S lines coincident with the twofold rotation axes of mutually turned DMSO2 ligands by ca 60°. The central Al atom is hexacoordinated by six O atoms with nearly octahedral coordination. More than one electron is transferred to the Al central atom from DMSO2 ligands. Weaker and longer S-O, stronger and shorter S-C bonds, lower O-S-O bond angles and greater O-S-C and C-S-C ones in [Al(DMSO2)3]3+ than in free DMSO2 are implied by weak Al-O bonding.
Testing of selected probiotic properties of lactic acid bacteria isolated from vegetarians and meat-eaters faeces
Authors: Hybenová Eva , Birošová Lucia , Nagyová Kristína , Štofirová Júlia , Šaková Nikoleta , Olejníková Petra , Kaliňáková Barbora 
Published: July 2014

Abstract
The aim of this work was to evaluate presence and properties of lactic acid bacteria in the faeces of 240 volunteers with various nutrition habits (vegetarians versus meat-eaters). Lactic acid bacteria counts in all age groups were nearly 5 or 6 logarithmic orders. Significantly higher amounts were found in women. Subsequently, based on the age and dietary pattern of probands, four samples were selected for isolation of lactic acid bacteria and identification of isolates in order to assign them to bacterial species. About 80 lactic acid bacteria were isolated from the faeces of young (21-30 years) and older (51-60 years) vegetarians and meateaters. The identification of the isolates was based on their morphological and biochemical characteristics. Isolates belong to lactobacilli, bifidobacteria, enterococci and propionibacteria. Surprisingly, bifidobacteria were predominated in older age group. The following probiotic properties were determined: survival at low pH value, and bile salt hydrolase activity. All strains were negative in bile salt hydrolase activity, but their growth was not inhibited in the presence of bile. The results from the study of survival at low pH value showed considerable variability in both dietary groups regardless the age of probands. However, it can be concluded, that bacteria isolated from the samples of older probands were more sensitive to acid pH.
Modified concept of axial-flux permanent magnet machine with field weakening capability
Authors: Paplicki Piotr 
Published: July 2014

Abstract
This paper presents the concept of an innovative field-controlled axial-flux permanent-magnet (FCAFPM) machine. In order to show the working principle and features of the proposed dual-rotor with surface-mounted PM’s and iron poles, a toroidally- wounded slotted single-stator FCAFPM machine is investigated and analyzed in detail, using 3-D FEAnalysis. The control range, back electromotive force (back-EMF), output and cogging torque components have been evaluated.
WTHD minimisation in hybrid multilevel inverter using biogeographical based optimisation
Authors: Kavitha R. , Thottungal Rani 
Published: July 2014

Abstract
Harmonic minimisation in hybrid cascaded multilevel inverter involves complex nonlinear transcendental equation with multiple solutions. Hybrid cascaded multilevel can be implemented using reduced switch count when compared to traditional cascaded multilevel inverter topology. In this paper Biogeographical Based Optimisation (BBO) technique is applied to Hybrid multilevel inverter to determine the optimum switching angles with weighted total harmonic distortion (WTHD) as the objective function. Optimisation based on WTHD combines the advantage of both OMTHD (Optimal Minimisation of Total Harmonic Distortion) and SHE (Selective Harmonic Elimination) PWM. WTHD optimisation has the benefit of eliminating the specific lower order harmonics as in SHEPWM and minimisation of THD as in OMTHD. The simulation and experimental results for a 7 level multilevel inverter were presented. The results indicate that WTHD optimization provides both elimination of lower order harmonics and minimisation of Total Harmonic Distortion when compared to conventional OMTHD and SHE PWM. Experimental prototype of a seven level hybrid cascaded multilevel inverter is implemented to verify the simulation results.
Three-phase hybrid transformer using matrix-chopper as an interface between two AC voltage sources
Authors: Kaniewski J. , Fedyczak Z. , Szcześniak P. 
Published: July 2014

Abstract
This paper deals with a three-phase power system with hybrid transformer (HT) installed between two AC sources. The main aim of this paper is analyze the basic properties of HT with active load and ability to bidirectional energy flow. The HT contains two main units - a conventional transformer with electromagnetic coupling and PWM AC line chopper connected with secondary windings with electric coupling. The HT is located between the distribution system and a Local Balancing Area (LBA) with low power local energy sources. After describing the HT circuit and three-phase, twosources power system, the mathematical and circuit models of the AC source with HT are presented. These models are verified by means of the simulation and experimental test results obtained for a three-phase HT of about 3 kVA rated power.
Optimal power flow with transmission cost solution under bilateral and multilateral transactions
Authors: J. Bastin Solai Nazaran , Selvi K. 
Published: July 2014

Abstract
In a deregulated electricity market, it is important to dispatch the generation in an economical manner and to ensure security under different operating conditions. In this study evolutionary computation based solution for optimal power flow is attempted. Social welfare optimization is taken as the objective function, which includes generation cost, transmission cost and consumer benefit function. Transmission cost is calculated using Bialek’s power flow tracing method. Severity index is applied as a constraint to measure the security. The objective function is calculated for pre and post contingency periods. Real power generations, real power loads and transformer tap settings are selected as control variables. Different bilateral and multilateral conditions are considered for analysis. A Human Group Optimization algorithm is used to find the solution of the problem. The IEEE 30 bus system is taken as a test system.
Fault location technique using GA-ANFIS for UHV line
Authors: Banu G. , Suja S. 
Published: July 2014

Abstract
This paper presents an improved approach for locating and identifying faults for UHV overhead Transmission line by using GA-ANFIS. The proposed method uses one end data to identify the fault location. The ANFIS can be viewed either as a Fuzzy system, neural network or fuzzy neural network FNN. The integration with neural technology enhances fuzzy logic system on learning capabilities are proposed to analyze the UHV system under different fault conditions. The performance variation of two controllers in finding fault location is analyzed. This paper analyses various faults under different conditions in an UHV using Matlab/simulink. The proposed method is evaluated under different fault conditions such as fault inception angle, fault resistance and fault distance. Simulation results confirm that the proposed method can be used as an efficient for accurate fault location on the transmission line.
Study on the influence of output inductance on DBD plasma uniformity
Authors: Hołub Marcin 
Published: July 2014

Abstract
The presented work gives an overview on simulation and experimental results of the power supply parameters’ influence on DBD discharge uniformity. The proposed study is about the use of quasi-pulsed, power electronic power supply and a saturable inductor in series with the discharge cell [1]. The simulation results are presented with a parallel DBD reactor model with linear critical voltage distribution. A more uniform current waveform is observed, however, due to small reactor capacitances no streamer formation could be verified in calculations. An experimental test stand was prepared with a double dielectric barrier discharge arrangement. The experimental results are presented with regard to the electrical oscilloscope waveforms and ICCD camera imaging. A more homogenous plasma was observed in the case of saturable inductor with saturation current set at the point of discharge formation. Two possible mechanisms are connected with this phenomenon - inductive element current support during discharge and/or current rise-time limitation [1].
Design considerations of high-speed eddy-current brake
Authors: Garbiec Tomasz , Kowol Marcin , Kołodziej Janusz 
Published: July 2014

Abstract
The paper presents results of analysis of the influence of rotor construction on the steady-state torque-speed characteristics of a high-speed eddy-current brake. The investigation is carried out using two- and three-dimensional finite element models and measurements. A series of computations is carried out in order to find out the method for performance improvement of the considered system.
Modelling concept of N×M matrix converter under periodic control for dynamic states
Authors: Sieńko Tomasz , Sobczyk Tadeusz J. 
Published: July 2014

Abstract
This paper presents a concept of an N×M Matrix Converter (MC) modeling under periodic control strategy patented in Poland. This strategy allows to change an Nphase input system of voltages and current with the frequency fi to the M-phase output system with the frequency fo, maintaining both systems symmetrical and providing small distortions of voltage and current waveforms at rather high frequencies. In this paper the control strategy is extended for dynamic states when one of the frequencies is changed. Matrix converter equations have been derived using the constrain matrix, which is determined by the switch states. The equations have the hybrid form of a multi-port circuit. To simplify these equations the symmetrical components of input and output voltages and currents have been applied. As a result, rather simple equations have been found. They can be interpreted to an equivalent scheme. All considerations are illustrated using an exemplary 6×3 matrix converter.
Weed control in sesame (Sesamum indicum L.) using integrated soil applied herbicides and seed hydro-priming pretreatment
Authors: Vafaei Samaneh , Razmjoo Jamshid , Karimmojeni Hassan 
Published: July 2014

Abstract This study explores the effects of the pre-emergence herbicides alachlor (1680; 2400 g ha-1) and trifluralin (720; 1200 g ha-1), the post-emergence herbicides bentazone (360; 480 g ha-1) and haloxyfop (250; 375 g ha-1) and their combinations, along with the effect of seed hydro-priming on weed control, growth and yield of sesame (Sesamum indicum L.). Hydropriming reduced the interval from planting to seedling establishment, increased the seedling dry weight and the crop grain yield. Based on grain yield, 720 g ha-1 trifluralin followed by 250+720 g ha-1 holoxyfob + trifluralin, 250 +1680 g ha-1 holoxyfob + alachlor, 2400 g ha-1 alachlor, and 1680 g ha-1 alachlor, all combined with priming, were the best treatments. The results showed that proper combination of pre- and post-emergence herbicides along with seed priming could be used to control the weeds in the sesame and obtain seed yield comparable with weed-free conditions
Yield and quality of maize from spent engine oil contaminated soils amended with compost under screenhouse conditions
Authors: Adewole Moses Bamidele , Aboyeji Adejumoke Oluwatoyin 
Published: July 2014

Abstract The study investigated the effects of poultry manure compost (PMC) on the growth performance and yield of maize (Zea mays L.) when cultivated on spent engine oil (SEO) contaminated soil with a view to assessing its nutritional composition. The experiment consisted of three SEO treatments (0%, 1% and 2% w/w) with six levels (0, 2, 4, 6, 8 and 10 t ha-1) of PMC applications. Each treatment was replicated thrice and arranged in a 3 × 6 × 3 factorial completely randomized design to give a total of 54 pots. At full physiological maturity, maize grains were harvested and threshed manually for analysis. As the bioavailability of metals increased with increasing PMC, their uptake by maize plants was enhanced. The soil amended with 10 t ha-1 and contaminated with 1% SEO recorded the highest uptake rates of 1.761 × 10-2, 2.345 × 10-2 and 4.285 × 10-2 day-1 for Fe, Cu and Pb respectively. Also, the significantly (P<0.05) highest yield of maize (5.8 t ha-1) and the highest nutritional values of crude protein (11.27 g 100 g-1) and crude fibre (2.71 g 100 g-1) were obtained with zero SEO soil contamination at 10 t ha-1 PMC applications. There was evidence of yield and nutritional quality reduction of maize when cultivated on SEO contaminated soils with or without poultry compost fertilization
Isolation of coagulase negative Enterococcous sp. strains from non-broiler chicken producing bacteriocin active against Staphylococcus aureus
Authors: Yusuf Moshood Al-Haji , Abdul Hamid Tengku Haziyamin Tengku 
Published: July 2014

Abstract Lactic acid bacteria (LAB) were isolated from the bile, gizzard, intestine and caecum of the Malaysian domestic non-broiler chicken. Of the 56 isolates grown on MRS agar plates, 7 - namely, B3L3, B4L4, G5L5, B5L6, B10L7, I1L8, and C4L10 - showed inhibition against the methicillin resistant Staphylococcus aureus (MRSA). These isolates were all Gram positive cocci, non-spore forming, and catalase negative. The purified fraction from the three phase partitioning (TPP) method, employing t-butanol and ammonium sulfate, produced inhibitory zones of 8 to 18 mm in diameter on the indicator organism, Staphylococcus aureus (MRSA). The TPP purified fraction contained heat stable proteins of about 10 kDa in size and was inactivated by trypsin. Based on the partial rDNA sequences (>89% similarity), isolates B4L4 and G5L5 belonged to Enterococcus hirae; isolate B3L3 belonged to Enterococcus faecium; isolates B5L6, B10L7, I1L8 to Enterococcus faecalis; and isolate C4L10 to Enterococcus mundtii. These probiotic strains, exclusively isolated from the Malaysian non-broiler chicken, produced an antimicrobial protein or bacteriocin which was active against a pathogenic strain of methicillin resistant Staphylococcus aureus (MRSA).
Biomarkers used to assess radio- and chemotherapy-induced lymphocyte genome instability in a case of cerebral infarction during relapse of a testicular seminoma
Authors: Gamulin Marija , Pastuhović Ana , Šantek Fedor , Grgić Mislav , Kopjar Nevenka 
Published: July 2014

AbstractWe report a case of a testicular seminoma patient with relapse who was irradiated after acute cerebral infarction induced by cisplatin-based chemotherapy. Lymphocytic genome instability was studied using an alkaline comet assay, analysis of structural chromosome aberrations, and cytokinesis-block micronucleus assay in blood samples collected before and after PET CT scanning that preceded radiotherapy, as well as before the administration of the first and after the administration of the last fraction of 3D conformal radiation. A challengetest with hydrogen peroxide (H