bluuebunny/crossref_metadata_2025_split huggingface dataset:
Selection of optimal spawning pairs to maintain genetic variation among captive populations of Acipenseridae based on the polymorphism of microsatellite loci
Authors: Kaczmarczyk Dariusz 
Published: August 2016

Abstract
The American paddlefish, Polyodon spathula (Walbaum), is an endangered acipenserid fish. Its wild populations are supplemented with stocking material that is obtained by conducting artificial spawning in aquaculture conditions. When fish are bred in captivity, it is important to select breeding pairs that will produce the most genetically diverse progeny, since this permits maintaining the fitness of wild populations. Breeding pairs of land animals are selected successfully based on the polymorphism of their microsatellite loci. This theoretical paper asks how to adapt this technique to fish so that American paddlefish spawners can be paired with the aim of producing restocking material in aquaculture that maintains genetic variation. To test our calculating techniques, we used actual data on the polymorphism of the microsatellites from paddlefish broodstock at the Pogorze fish farm (Poland). The data enabled us to do calculations that showed which spawner pairs would create the most genetically diverse offspring and how to assemble sets of spawning pairs that would be best for maintaining genetic variation. The method presented in this paper can be used for breeding fish in aquaculture to help conserve species. It could also be used in a computer program which would automate calculations and present them in easy-to-read tables and graphs.
Economic growth and labor market friction: a quantitative study on Japanese structural transformation
Authors: Sim Seung-Gyu , Oh Seungjoon 
Published: August 2016

Abstract
This paper develops a tractable multi-sector endogenous growth model with labor market friction and human capital accumulation to analyze the underlying link between economic growth and labor market institutions. The model, calibrated based on the Japanese structural transformation episodes, demonstrates that lifetime employment system has contributed to unprecedentedly rapid economic growth, by enhancing human capital accumulation and facilitating physical capital formation. The counterfactual experiment finds that had the job durations of a typical worker been 1 year (roughly one tenth of the actual average job duration) for 1960–1990 in the Japanese labor market, the non-agricultural GDP per capita in 1990 would have accounted for 71 percent of the actual values.
Assessment of genotoxicity of vincristine, vinblastine and vinorelbine in human cultured lymphocytes: a comparative study
Authors: Mhaidat NM , Alzoubi KH , Khabour OF , Alawneh KZ , Raffee LA , Alsatari ES , Hussein EI , Bani-Hani KE 
Published: August 2016

Abstract
Vincristine (VCR), vinblastine (VBL) and vinorelbine (VRL) are anticancer agents from the Vinca alkaloid family that have the potential to induce genotoxic effect. The aim of the present study was to compare the genotoxic effect of VCR, VBL and VRL. Levels of 8-hydroxy-2-deoxy guanosine (8-OHdG) and sister chromatid exchanges (SCEs) were measured in cultured human blood lymphocytes treated with VCR, VBL and VRL at concentrations of 0.01 and 0.1 μg/mL. Results showed that VCR, VBL and VRL significantly increased the 8-OHdG levels (p <0.05), whereas it did not cause a significant increase in the frequencies of SCEs in human blood lymphocytes as compared to controls. On the other hand, all three agents significantly increased cells mitotic index (p <0.05). At both tested concentrations, the magnitude of the increase in 8-OHdG was VBL>VCR>VRL. In conclusion, VCR, VBL and VRL induce DNA damage as indicated by the increase in the 8-OHdG biomarker but with different magnitude.
Frequency and association of 1691 (G>A) FVL, 20210 (G>A) PT and 677 (C>T) MTHFR with deep vein thrombosis in the population of Bosnia and Herzegovina
Authors: Jusić-Karić A , Terzić R , Jerkić Z , Avdić A , Pođanin M 
Published: August 2016

Abstract
The 1691 (G>A) factor V Leiden (FVL) and 20210 (G>A) prothrombin (PT) mutations are the two most common genetic risk factors in venous thromboembolism. The 677 (C>T) methylene tetrahydrofolate reductase (MTHFR) mutation is the most frequently mentioned as an independent genetic risk factor for venous thromboembolism. As there are limited published data on the prevalence of the 1691, 20210 and 677 mutations in our population, the aim of this study was to determine the frequencies and association of these deep vein thrombosis mutations in the Bosnian population.
This study included 111 thromboembolic patients and 207 healthy subjects with absence of known risk factors for venous thromboembolism. Genotyping of the 1691, 20210 and 677 mutations was done by polymerase chain reaction (PCR), followed by restriction digestion with MnlI, HindIII and HinfI enzymes.
Out of the 111 patients, 18.0% were heterozygous and 2.70% were homozygous for the 1691 mutation. Among 207 healthy controls, 3.86%, were heterozygous for the 1691 mutation. This study confirmed the association of the 1691 mutation with deep vein thrombosis in the Bosnian population odds ratio (OR) [95% confidence interval (CI)] = 6.0 (2.62-14.14); p = 0.0001). The 20210 mutation was detected in 2.70% of patients and it was totally absent in the control group. Allele and genotype frequency of 677 did not differ significantly between the cases and controls (χ2 = 1.03; p = 0.309).
Low concentrations of adropin are associated with endothelial dysfunction as assessed by flow-mediated dilatation in patients with metabolic syndrome
Authors: Oruc Coskun U. , Akpinar Yunus E. , Dervisoglu Elmire , Amikishiyev Shirkhan , Salmaslıoglu Artur , Gurdol Figen , Omer Beyhan 
Published: August 2016

Abstract

Background:
In individuals with atherosclerotic risk factors, endothelial dysfunction (ED) appears as an early phase in the development of clinical symptoms. Recent studies indicate that adropin, a newly identified peptide, participates in cardiovascular health through the regulation of several metabolic events including angiogenesis and blood flow. In this study, we aimed to determine the relation of adropin with biochemical and radiologic parameters which reflect ED such as endothelial nitric oxide synthase (eNOS), endothelin 1 (ET-1), nitric oxide (NO) and flow-mediated dilatation (FMD) along with the routine biochemical measurements in patients recently diagnosed with metabolic syndrome (MetS).

Methods:
Fasting blood samples from 110 patients with MetS diagnosed according to the NCEP ATP III-2005 criteria were collected to measure the concentrations of adropin and other parameters including the lipid profile, insulin and glucose. Serum NOx concentrations were determined by measuring NO2 plus NO3. FMD test was performed by ultrasonography, and patients were stratified as FMD (+) or (–). Data were compared between these two subgroups and also with matching healthy controls (n=50). Biochemical data were evaluated using Student’s t or Mann-Whitney U tests.

Results:
Fifty-nine subjects had ED (+) and the remaining 101 subjects were ED (–). In the first group, adropin levels were significantly lower than the latter (2.13±1.05 vs. 3.41±1.63 ng/mL, respectively; p<0.001) and independently associated with FMD positivity as assessed by the logistic regression analysis.

Conclusions:
Low adropin level in circulation is related to ED and has a close association with FMD. Any alterations in its level may be of help in order to assess the development of ED before the occurrence of clinical symptoms in patients with metabolic syndrome.
Comparison of adsorption of Cd(II) and Pb(II) ions on pure and chemically modified fly ashes
Authors: Sočo Eleonora , Kalembkiewicz Jan 
Published: August 2016

Abstract
The study investigates chemical modifications of coal fly ash (FA) treated with HCl or NH4HCO3 or NaOH or Na2edta, based on the research conducted to examine the behaviour of Cd(II) and Pb(II) ions adsorbed from water solution on treated fly ash. In laboratory tests, the equilibrium and kinetics were examined applying various temperatures (293 - 333 K) and pH (2 - 11) values. The maximum Cd(II) and Pb(II) ions adsorption capacity obtained at 293 K, pH 9 and mixing time 2 h from the Langmuir model can be grouped in the following order: FA-NaOH > FA-NH4HCO3 > FA > FA-Na2edta > FA-HCl. The morphology of fly ash grains was examined via small-angle X-ray scattering (SAXS) and images of scanning electron microscope (SEM). The adsorption kinetics data were well fitted by a pseudo-second-order rate model but showed a very poor fit for the pseudofirst order model. The intra-particle model also revealed that there are two separate stages in the sorption process, i.e. the external diffusion and the inter-particle diffusion. Thermodynamics parameters such as free energy, enthalpy and entropy were also determined. A laboratory test demonstrated that the modified coal fly ash worked well for the Cd(II) and Pb(II) ion uptake from polluted waters.
CFD simulations of heat transfer in internally helically ribbed tubes
Authors: Majewski Karol , Grądziel Sławomir 
Published: August 2016

Abstract
Heating surfaces in power boilers are exposed to very high heat flux. For evaporator protection against overheating, internally helically ribbed tubes are used. The intensification of the heat transfer and the maintenance of the thin water layer in the intercostal space, using ribbed tubes, enables better protection of the power boiler evaporator than smooth pipes. Extended inner surface changes flow and thermal conditions by influencing the linear pressure drop and heat transfer coefficient. This paper presents equations that are used to determine the heat transfer coefficient. The results of total heat transfer, obtained from CFD simulations, for two types of internally ribbed and plain tubes are also presented.
Men’s Perception of Raped Women: Test of the Sexually Transmitted Disease Hypothesis and the Cuckoldry Hypothesis
Authors: Prokop Pavol , Pekárik Ladislav 
Published: August 2016

AbstractRape is a recurrent adaptive problem of female humans and females of a number of non-human animals. Rape has various physiological and reproductive costs to the victim. The costs of rape are furthermore exaggerated by social rejection and blaming of a victim, particularly by men. The negative perception of raped women by men has received little attention from an evolutionary perspective. Across two independent studies, we investigated whether the risk of sexually transmitted diseases (the STD hypothesis, Hypothesis 1) or paternity uncertainty (the cuckoldry hypothesis, Hypothesis 2) influence the negative perception of raped women by men. Raped women received lower attractiveness score than non-raped women, especially in long-term mate attractiveness score. The perceived attractiveness of raped women was not influenced by the presence of experimentally manipulated STD cues on faces of putative rapists. Women raped by three men received lower attractiveness score than women raped by one man. These results provide stronger support for the cuckoldry hypothesis (Hypothesis 2) than for the STD hypothesis (Hypothesis 1). Single men perceived raped women as more attractive than men in a committed relationship (Hypothesis 3), suggesting that the mating opportunities mediate men’s perception of victims of rape. Overall, our results suggest that the risk of cuckoldry underlie the negative perception of victims of rape by men rather than the fear of disease transmission.
G-MAPSEQ – a new method for mapping reads to a reference genome
Authors: Wojciechowski Pawel , Frohmberg Wojciech , Kierzynka Michal , Zurkowski Piotr , Blazewicz Jacek 
Published: August 2016

Abstract
The problem of reads mapping to a reference genome is one of the most essential problems in modern computational biology. The most popular algorithms used to solve this problem are based on the Burrows-Wheeler transform and the FM-index. However, this causes some issues with highly mutated sequences due to a limited number of mutations allowed. G-MAPSEQ is a novel, hybrid algorithm combining two interesting methods: alignment-free sequence comparison and an ultra fast sequence alignment. The former is a fast heuristic algorithm which uses k-mer characteristics of nucleotide sequences to find potential mapping places. The latter is a very fast GPU implementation of sequence alignment used to verify the correctness of these mapping positions. The source code of G-MAPSEQ along with other bioinformatic software is available at: http://gpualign.cs.put.poznan.pl.
Threshold-Based Bit Error Rate for Stopping Iterative Turbo Decoding in a Varying SNR Environment
Authors: Mohamad Roslina , Harun Harlisya , Mokhtar Makhfudzah , Adnan Wan Azizun Wan , Dimyati Kaharudin 
Published: August 2016

Abstract
Online bit error rate (BER) estimation (OBE) has been used as a stopping iterative turbo decoding criterion. However, the stopping criteria only work at high signal-to-noise ratios (SNRs), and fail to have early termination at low SNRs, which contributes to an additional iteration number and an increase in computational complexity. The failure of the stopping criteria is caused by the unsuitable BER threshold, which is obtained by estimating the expected BER performance at high SNRs, and this threshold does not indicate the correct termination according to convergence and non-convergence outputs (CNCO). Hence, in this paper, the threshold computation based on the BER of CNCO is proposed for an OBE stopping criterion (OBEsc). From the results, OBEsc is capable of terminating early in a varying SNR environment. The optimum number of iterations achieved by the OBEsc allows huge savings in decoding iteration number and decreasing the delay of turbo iterative decoding.
Fault Analysis in a Grid Integrated DFIG Based Wind Energy System with NA CB_P Circuit for Ridethrough Capability and Power Quality Improvement
Authors: Swain Snehaprava , Ray Pravat Kumar 
Published: August 2016

Abstract
In this paper a three phase fault analysis is done on a DFIG based grid integrated wind energy system. A Novel Active Crowbar Protection (NACB_P) system is proposed to enhance the Fault-ride through (FRT) capability of DFIG both for symmetrical as well as unsymmetrical grid faults. Hence improves the power quality of the system. The protection scheme proposed here is designed with a capacitor in series with the resistor unlike the conventional Crowbar (CB) having only resistors. The major function of the capacitor in the protection circuit is to eliminate the ripples generated in the rotor current and to protect the converter as well as the DC-link capacitor. It also compensates reactive power required by the DFIG during fault. Due to these advantages the proposed scheme enhances the FRT capability of the DFIG and also improves the power quality of the whole system. Experimentally the fault analysis is done on a 3hp slip ring induction generator and simulation results are carried out on a 1.7 MVA DFIG based WECS under different types of grid faults in MATLAB/Simulation and functionality of the proposed scheme is verified.
Computer-aided identification of the water diffusion coefficient for maize kernels dried in a thin layer
Authors: Kujawa Sebastian , Weres Jerzy , Olek Wiesław 
Published: August 2016

Abstract
Uncertainties in mathematical modelling of water transport in cereal grain kernels during drying and storage are mainly due to implementing unreliable values of the water diffusion coefficient and simplifying the geometry of kernels. In the present study an attempt was made to reduce the uncertainties by developing a method for computer-aided identification of the water diffusion coefficient and more accurate 3D geometry modelling for individual kernels using original inverse finite element algorithms. The approach was exemplified by identifying the water diffusion coefficient for maize kernels subjected to drying. On the basis of the developed method, values of the water diffusion coefficient were estimated, 3D geometry of a maize kernel was represented by isoparametric finite elements, and the moisture content inside maize kernels dried in a thin layer was predicted. Validation of the results against experimental data showed significantly lower error values than in the case of results obtained for the water diffusion coefficient values available in the literature.
Analysis of the sorption properties of different soils using water vapour adsorption and potentiometric titration methods
Authors: Skic Kamil , Boguta Patrycja , Sokołowska Zofia 
Published: August 2016

Abstract
Parameters of specific surface area as well as surface charge were used to determine and compare sorption properties of soils with different physicochemical characteristics. The gravimetric method was used to obtain water vapour isotherms and then specific surface areas, whereas surface charge was estimated from potentiometric titration curves. The specific surface area varied from 12.55 to 132.69 m2 g−1 for Haplic Cambisol and Mollic Gleysol soil, respectively, and generally decreased with pH (R=0.835; α = 0.05) and when bulk density (R=−0.736; α = 0.05) as well as ash content (R=−0.751; α = 0.05) increased. In the case of surface charge, the values ranged from 63.00 to 844.67 μmol g−1 Haplic Fluvisol and Mollic Gleysol, respecively. Organic matter gave significant contributions to the specific surface area and cation exchange capacity due to the large surface area and numerous surface functional groups, containing adsorption sites for water vapour molecules and for ions. The values of cation exchange capacity and specific surface area correlated linearly at the level of R=0.985; α = 0.05.
Root density of cherry trees grafted on prunus mahaleb in a semi-arid region
Authors: Paltineanu Cristian , Septar Leinar , Gavat Corina , Chitu Emil , Oprita Alexandru , Moale Cristina , Lamureanu Gheorghe , Vrinceanu Andrei 
Published: August 2016

Abstract
Root density was investigated using the trench method in a cherry (Prunus avium grafted on Prunus mahaleb) orchard with clean cultivation in inter-rows and in-row. Trenches of 1 m width and 1.2 m depth were dug up between neighbouring trees. The objectives of the paper were to clarify the spatial distribution of root density of cherry trees under the soil and climate conditions of the region to expand knowledge of optimum planting distance and orchard management for a broad area of chernozems. Some soil physical properties were significantly worsened in inter-rows versus in-row, mainly due to soil compaction, and there were higher root density values in in-row versus inter-rows. Root density decreased more intensely with soil depth than with distance from trees. The pattern of root density suggests that the cherry tree density and fruit yield could be increased. However, other factors concerning orchard management and fruit yield should also be considered. The results obtained have a potential impact to improve irrigation and fertilizer application by various methods, considering the soil depth and distance from trees to wet soil, in accordance with root development.
Temporal stability of electrical conductivity in a sandy soil
Authors: Pedrera-Parrilla Aura , Brevik Eric C. , Giráldez Juan V. , Vanderlinden Karl 
Published: August 2016

Abstract
Understanding of soil spatial variability is needed to delimit areas for precision agriculture. Electromagnetic induction sensors which measure the soil apparent electrical conductivity reflect soil spatial variability. The objectives of this work were to see if a temporally stable component could be found in electrical conductivity, and to see if temporal stability information acquired from several electrical conductivity surveys could be used to better interpret the results of concurrent surveys of electrical conductivity and soil water content. The experimental work was performed in a commercial rainfed olive grove of 6.7 ha in the ‘La Manga’ catchment in SW Spain. Several soil surveys provided gravimetric soil water content and electrical conductivity data. Soil electrical conductivity values were used to spatially delimit three areas in the grove, based on the first principal component, which represented the time-stable dominant spatial electrical conductivity pattern and explained 86% of the total electrical conductivity variance. Significant differences in clay, stone and soil water contents were detected between the three areas. Relationships between electrical conductivity and soil water content were modelled with an exponential model. Parameters from the model showed a strong effect of the first principal component on the relationship between soil water content and electrical conductivity. Overall temporal stability of electrical conductivity reflects soil properties and manifests itself in spatial patterns of soil water content.
Changes in the size of the apparent surface area and adsorption energy of the rye roots by low pH and the presence of aluminium ions induced
Authors: Szatanik-Kloc Alicja 
Published: August 2016

Abstract
The plant reactions on Al-stress include i.a. change of the surface area of the roots, which in the physicochemistry of plants characterizes the transport of water and ions through the root. The object of this study is the specific surface area of the roots of plants which are tolerant to aluminium, such as rye. Plants of rye were grown in a nutrient solution for 14 days at pH 4.5 in the presence of Al3+ ions of concentration 10, 20, and 40 mg dm−3. The control plants were grown continuously at pH 7 or pH 4.5 without Al3+. The apparent surface area and adsorption energy of the plants roots were determined from water vapour adsorption – desorption data. The apparent surface area of roots growing in the aluminium was (with respect to control) statistically significantly lower. There were no statistically significant differences in the apparent surface area of the roots which grew in pH 7, pH 4.5 without Al3+. The average water vapour adsorption energy of the root surface, under stress conditions decreased. In the roots grown in the presence of Al+3, there was a slight decrease in high energy adsorption centres and an increase in the amount of low-energy centres.
Regularization method for an ill-posed Cauchy problem for elliptic equations
Authors: Benrabah Abderafik , Boussetila Nadjib , Rebbani Faouzia 
Published: August 2016

Abstract
The paper is devoted to investigating a Cauchy problem for homogeneous elliptic PDEs in the abstract Hilbert space given by

u
′′

⁢

(
t
)

-

A
⁢
u
⁢

(
t
)

=
0

{u^{\prime\prime}(t)-Au(t)=0}

,

0
<
t
<
T

{0<t<T}

,

u
⁢

(
0
)

=
φ

{u(0)=\varphi}

,

u
′

⁢

(
0
)

=
0

{u^{\prime}(0)=0}

, where A is a positive self-adjoint
and unbounded linear operator. The problem is severely ill-posed in the sense of Hadamard [23].
We shall give a new regularization method for this problem when the operator A
is replaced by

A
α

=

A
⁢

(

I
+

α
⁢
A

)

-
1

{A_{\alpha}=A(I+\alpha A)^{-1}}

and

u
⁢

(
0
)

=
φ

{u(0)=\varphi}

is replaced by a nonlocal condition. We show the convergence of this
method and we construct a family of regularizing operators for the considered problem. Convergence estimates are established under a priori
regularity assumptions on the problem data. Some numerical results are given to show the effectiveness of the proposed method.