bluuebunny/crossref_metadata_2025_split huggingface dataset:
Morphological Features and KIT Receptor Expression in Canine Cutaneous Mast Cell Tumor and Systemic Mastocytosis / Morfološke Karakteristike I Ekspresija KIT Receptora Kod Kutanih Mastocitoma I Sistemske Mastocitoze Pasa
Authors: Marinković Darko , Milčić-Matić Natalija , Jovanović Milan , Vučićević Ivana , Nešić Slađan , Aničić Milan , Aleksić-Kovačević Sanja 
Published: June 2015

Abstract
Mast cell neoplasia in dogs can occur in two different forms: common as cutaneous tumor, or less common as a systemic form of neoplastic mast cell proliferation - systemic mastocytosis. The aim of this study was to compare the histological and cytological features, KIT receptor expression and presence of c-KIT proto-oncogene mutations in neoplastic cells of dogs with canine cutaneous mast cell tumor (CMCT) and systemic mastocytosis. Microscopical examination of the cytological smears obtained from all selected dogs revealed that cellular specimens were constituted mostly of round cells with a central nuclei and fine to coarse purple cytoplasmic granules. Histopathological examination of skin samples of dogs with CMCT and a dog with systemic mastocytosis showed proliferation of the neoplastic mast cells in the superficial and/or deep dermis. Similar findings were observed in tissue samples derived from lymph nodes, spleen, liver, myocardium and kidneys of a dog with systemic mastocytosis. Three dogs with high grade CMCT as well as one dog with systemic mastocytosis showed cytoplasmic CD117 expression, while 3 dogs with low grade CMCT, had membranous expression of CD117. Based on our study, histological features and cytoplasmic CD117 expression in neoplastic cells of dogs with systemic mastocytosis are similar to those in dogs with high grade CMCTs. Nevertheless, mutations of c-KIT proto-oncogene were not found in tumor samples either from dogs with CMCT or dog with systemic mastocytosis.
Effects of Fish Meal Replacement by Red Earthworm (Lumbricus Rubellus) Meal on Broilers’ Performance and Health / Uticaj Supstitucije Ribljeg Brašna Brašnom Kalifornijske Gliste (Lumbricus Rubellus) Na Proizvodne Rezultate I Zdravstveno Stanje Brojlera
Authors: Janković Ljiljana , Radenković-Damnjanović Brana , Vučinić Marijana , Šefer Dragan , Teodorović Radislava , Đorđević Milutin , Radisavljević Katarina 
Published: June 2015

Abstract
The research was performed to determine the nutritive value of raw earthworms (Lumbricus rubellus) and dried earthworm powder, or earthworm meal (EM). In addition, the effects of a diet in which fish meal was substituted with EM or fresh earthworms on the health and productive performance of broilers were monitored. The experiment, which lasted 42 days, was conducted on one hundred Hybro G broilers divided into four equal groups. The control group was fed a standard feed, whereas, the first and the second one were given diets in which 50% or 100% of fish meal had been substituted with EM. The third experimental group received no fish meal but was given fresh earthworms ad libitum. The results of chemical analyses showed that earthworm meal contained 41.42% proteins (in dry matter) and satisfactory amounts of amino acids. Microbiological examination and tests for heavy metals suggest that earthworm meal and fresh earthworms did not contain heavy metals and harmful bacteria. Therefore, these feeds may be considered suitable for chickens. In the experiment as a whole no statistically significant difference (p>0.05) was observed in the productive performance between the experimental groups of broiler chickens. These results suggest that dehydrated earthworm meal can be an adequate substitute for fish meal in the broilers’ feed.
Influence of Zn(II) Ion on the Autoxidation of Pyrogallol and Gallic Acid in Weakly Acidic Aqueous Solutions / Uticaj Zn(II) jona na autooksidaciju pirogalola i galne kiseline u slabo kiselim vodenim rastvorima
Authors: Veselinović Aleksandar M. , Nikolić Goran M. 
Published: June 2015

SUMMARY
Pyrogallol-type phenolic compounds are widespread in nature and may have significant impact on human health. As Zn(II) ion was proved to be capable of enhancing some biological activities of pyrogallol-type natural phenolic compounds, we decided to study its influence on the autoxidation of pyrogallol and gallic acid in weakly acidic aqueous solutions.
UV-Vis spectrophotometric measurements showed that autoxidation of pyrogallol was initiated by the influence of Zn(II) ions at pH 5.5 and pH 6.5. The differences in UV-Vis spectra of the first autoxidation products resolved by the application of multivariate curve resolution - alternating least squares (MCR-ALS) method indicated that pH change also changed the mechanism of autoxidation process. Formation of stable Zn(II) ion spin stabilized free radical obtained during the autoxidation of pyrogallol at pH 6.5 was confirmed by using electron spin resonance (ESR) spectroscopy and its structure was determined. Both UV-Vis spectrophotometric and ESR spectroscopic measurements did not give any evidence that gallic acid autoxidation was initiated by the influence of Zn(II) ions in weakly acidic aqueous solutions.
The results of this study may be used for explaining possible differences in the Zn(II) ion influence on various biological activities of pyrogallol-type phenolic compounds containing simple pyrogallol moiety and the ones containing gallate moiety as a part of the molecule
Evaluating the Incivility between Staff Nurses and Matrons Employed in Iran / Procena nepristojnog ponašanja u međusobnom odnosu medicinskih sestara i glavnih medicinskih sestara zaposlenih u Iranu
Authors: Heydari Abbas , Rad Mojtaba , Rad Mostafa 
Published: June 2015

SUMMARY
Incivility among nurses and matrons can lead to various issues such as employment turnover and dysfunctional patient care. Therefore, the need to examine and assess the uncivil behaviors among nurses and matrons is evident. The main purpose of this article is to study and determine the frequency of incivility between nurses and matrons from nurses’ point of view.
In this cross-sectional study, 200 nurses were selected from three educational hospitals of Mashhad using stratified-cluster random sampling method. The main research instrument was the edited Ottinot’s questionnaire of “perceived workplace civility climate scale (PWCC)” as well as general demographic information questionnaire. Data were analyzed using descriptive and inferential statistics in SPSS version 11.5.
According to research findings, 22.6% of isolating behaviors, 27% of gossiping behaviors, 28% of hostile behaviors, and 26.5% of privacy violation behaviors were reported among matrons for at least one instance. In total, 28.8% (45 persons) admitted that they had observed at least one instance of uncivil behaviors in workplace once or twice.
Incivility exists among a quarter of nurses and matrons. Since in nursing society and culture of Islamic Iran these behaviors cannot be tolerated, it is highly recommended that managers, strategists, and nursing teachers pay a special attention to such behaviors among students, employers, and co-workers
The role of wastewater treatment in reducing pollution of surface waters with zearalenone / Uloga pročišćavanja otpadnih voda u smanjenju onečišćenja površinskih voda zearalenonom
Authors: Gromadzka Karolina , Waśkiewicz Agnieszka , Świetlik Joanna , Bocianowski Jan , Goliński Piotr 
Published: June 2015

Abstract
Zearalenone (ZEA) is a mycotoxin produced by some Fusarium species in food and feed. The toxicity of ZEA and its metabolites is related to the chemical structure of the mycotoxin, which is similar to naturally occurring oestrogens. Currently, there is increasing awareness of the presence of fungi and their toxic metabolites in the aquatic environment. One of the sources of these compounds are the effluents from wastewater treatment plants. The average annual efficiency of zearalenone reduction in the Łęczyca plant in our three-year study was in the range from 51.35 to 69.70 %. The threeway analysis of variance (year, month, and kind of wastewater) shows that the main effects of all factors and all interactions between them were significant for zearalenone and dissolved organic carbon content. Our findings suggest that wastewater is not the main source of surface water pollution with zearalenone. Future research should investigate the means to reduce ZEA and its migration from the fields through prevention strategies such as breeding for crops, plant debris management (crop rotation, tillage), and/or chemical and biological control.
Impact of Ocean Tides Loading on Precise Point Positioning Based on FES2004 Model
Authors: Kalita J. Z. , Rzepecka Z. 
Published: June 2015

Abstract
Precise Point Positioning (PPP) technique as an absolute positioning method requires modeling of effects that influence observations. One of the effects is a displacement of the measurement location due to ocean mass gravitational attraction - ocean tides loading (OTL). The model recommended by the International Earth Rotation and Reference Systems Service (IERS) is FES2004. The paper focuses on impact of applying the particular OTL model on PPP processing. The analysis is based on processing of observations from 24 globally distributed permanent stations and time span of 50 days. The analysis bases on processing intervals from 1 to 24 hours. In addition, the amplitudes of the loads in Poland are evaluated. The OTL model is location dependent, thus the importance of applying this model depends on the location environment. As the PPP is an absolute method, the loads cumulate and transfer nearly directly to the positioning solution. Consequently, for short observation intervals and small loads the application of the model does not play an important role. For the analysed station with high amplitudes of the loads the relative and absolute improvement, of the solution was the highest for height component. By applying the model, the solution improved by 19% or 7.3 mm (as for RMS and 8 hour interval). The distinct improvement for convergence exists for vertical component and threshold below 5 cm. For Poland the vertical component loads were about 5 times smaller and the highest improvement for the analysed station was 3.7% for 4 hour interval and vertical component.
Evaluation of tumor angiogenesis in patients with non-small cell lung carcinoma
Authors: Suciu B.A. , Mezei T. , Pap Zsuzsanna , Denes L. , Hălmaciu Ioana , Pavai Z. , Brînzaniuc Klara , Azamfirei L. 
Published: June 2015

Abstract
The aim of this study is to evaluate tumor angiogenesis in patients with non-small cell lung carcinoma. A total of 20 patients with pulmonary adenocarinoma have been included in the study. In order to evaluate tumor angiogenesis we studied the importance of CD34 expression. Evaluation of vascular density was performed with a semiautomated method using the dedicated software called ImageJ. We introduced in our study 20 patients with lung adenocarcinoma. We were able to identify tumor angiogenesis in 19 cases (95%). Immunolabeling of CD34 positive endothelial cells provided a good overview of tumor vascularization. Immunohistochemical staining of CD34 positive endothelium cells provided a good basis for tumor vascularity assessment, and also an excellent contrast for computer assisted morphometric measurements. Also we studied the intensity of the immunohistochemical staining of CD34 in the tumoral cells. We obtained the following results: a minor expression in 4 cases (20%), a moderate expression in 9 cases (45%) and an intense expression in 6 cases (30%). The histological type of adenocarcinomas influences the architecture and branching of the vessels. The density of newly developed vessels is higher in patients with papillary pulmonary adenocarcinomas, which may indicate a possible relationship between the histological type and development of vascular supply.
Antihyperlipidemic, antioxidant and weightlowering
effects of “Vitalplant”
Authors: Đurendić Brenesel Maja , Pilija Vladimir , Popović Tamara , Arsić Aleksandra , Milić Miljan , Kojić Danijela , Milić Nataša , Mišan Aleksandra 
Published: June 2015

Abstract
BACKGROUND: “VITALPLANT” medicinal plant
mixture, aimed at body weight regulation and metabolism
enhancement was formulated in order to be incorporated
as an ingredient in functional food formulations on the
basis of known biological activity of the alder buckthorn
bark, peppermint, caraway and parsley. METHODOLOGY:
The body weight-lowering potential, hypolipidemic effects
and antioxidant activity of “Vitalplant” mixture were
examined on five groups of male Wistar rats on different
food regimes for 14 weeks. RESULTS: “Vitalplant” mixture
supplementation caused an increase in food intake, but
induced a decrease in body weight gain. The lipid status
and atherogenic index (AI) were significantly improved in
“Vitalplant” mixture supplemented hyperlipidemic (HF)
groups in comparison to HF group. “Vitalplant” mixture
was able to influence the activity of antioxidant enzymes
and to protect erythrocytes of the rats fed the HF diet from
oxidative damage, which was indicated by significantly
lower malondialdehyde (MDA) levels in “Vitalplant”- HF
groups in comparison to the HF group. CONCLUSION: “Vitalplant” mixture seemed to be beneficial for the
reduction of body weight and improvement of antioxidant
status of the erythrocytes, and its antihyperlipidemic
property was highly active for enhancing the profile of
plasma lipids in rats.
Entropy at the right atrium as a predictor of atrial fibrillation recurrence outcome after pulmonary vein ablation
Authors: Cervigón Raquel , Moreno Javier , García-Quintanilla Jorge , Pérez-Villacastín Julián , Castells Francisco 
Published: June 2015

Abstract
Atrial fibrillation (AF) recurrence rates after successful ablation procedures are still high and difficult to predict. This work studies the capability of entropy measured from intracardiac recordings as an indicator for recurrence outcome. Intra-atrial recordings from 31 AF patients were registered previously to an ablation procedure. Four electrodes were located at the right atrium (RA) and four more at the left atrium (LA). Sample entropy measurements were applied to these signals, in order to characterize different non-linear AF dynamics at the RA and LA independently. In a 3 months follow-up, 19 of them remained in sinus rhythm, whereas the other 12 turned back to AF. Entropy values can be associated to a proarrhythmic indicator as they were higher in patients with AF recurrence (1.11±0.15 vs. 0.91±0.13), in persistent patients (1.03±0.19 vs. 0.96±0.15), and at the LA with respect to the RA (1.03±0.23 vs. 0.89±0.15 for paroxysmal AF patients). Furthermore, entropy values at the RA arose as a more reliable predictor for recurrence outcome than at the LA. Results suggest that high entropy values, especially at the RA, are associated with high risk of AF recurrence. These findings show the potential of the proposed method to predict recurrences post-ablation, providing additional insights to the understanding of arrhythmia.
Effects of inclined magnetic field and Joule heating in mixed convective peristaltic transport of non-Newtonian fluids
Authors: Abbasi F.M. , Hayat T. , Alsaedi A. 
Published: June 2015

Abstract
This article describes the influence of an inclined magnetic field on the mixed convective peristaltic transport of fluid in an inclined channel. Two types of non-Newtonian fluids are considered. The problem formulation is presented for the Eyring-Prandtl and Sutterby fluids. Viscous dissipation and Joule heating in the heat transfer process are retained. The presence of a heat source in the energy equation is ensured. The resulting problems are solved by the perturbation method. The plots for different parameters of interest are given and discussed. Numerical values of a heat transfer rate are given and analyzed
Biomedical and agricultural applications of energy dispersive X-ray spectroscopy in electron microscopy
Authors: Wyroba Elżbieta , Suski Szymon , Miller Karolina , Bartosiewicz Rafał 
Published: June 2015

AbstractEnergy dispersive X-ray spectroscopy (EDS) in electron microscopy has been widely used in many research areas since it provides precise information on the chemical composition of subcellular structures that may be correlated with their high resolution images. In EDS the characteristic X-rays typical of each element are analyzed and the new detectors - an example of which we describe - allow for setting precisely the area of measurements and acquiring signals as a point analysis, as a linescan or in the image format of the desired area. Mapping of the elements requires stringent methods of sample preparation to prevent redistribution/loss of the elements as well as elimination of the risk of overlapping spectra. Both qualitative and quantitative analyses may be performed at a low probe current suitable for thin biological samples. Descriptions of preparation techniques, drawbacks and precautions necessary to obtain reliable results are provided, including data on standards, effects of specimen roughness and quantification. Data on EPMA application in different fields of biomedical and agricultural studies are reviewed.In this review we refer to recent EDS/EPMA applications in medical diagnostics, studies on air pollution and agrochemicals as well as on plant models used to monitor the environment.
The effect of the bioactive sphingolipids S1P and C1P on multipotent stromal cells – new opportunities in regenerative medicine
Authors: Marycz Krzysztof , Śmieszek Agnieszka , Jeleń Marta , Chrząstek Klaudia , Grzesiak Jakub , Meissner Justyna 
Published: June 2015

AbstractSphingosine-1-phosphate (S1P) and ceramide-1-phosphate (C1P) belong to a family of bioactive sphingolipids that act as important extracellular signaling molecules and chemoattractants. This study investigated the influence of S1P and C1P on the morphology, proliferation activity and osteogenic properties of rat multipotent stromal cells derived from bone marrow (BMSCs) and subcutaneous adipose tissue (ASCs). We show that S1P and C1P can influence mesenchymal stem cells (MSCs), each in a different manner. S1P stimulation promoted the formation of cellular aggregates of BMSCs and ASCs, while C1P had an effect on the regular growth pattern and expanded intercellular connections, thereby increasing the proliferative activity. Although osteogenic differentiation of MSCs was enhanced by the addition of S1P, the effectiveness of osteoblast differentiation was more evident in BMSCs, particularly when biochemical and molecular marker levels were considered. The results of the functional osteogenic differentiation assay, which includes an evaluation of the efficiency of extracellular matrix mineralization (SEM-EDX), revealed the formation of numerous mineral aggregates in BMSC cultures stimulated with S1P. Our data demonstrated that in an appropriate combination, the bioactive sphingolipids S1P and C1P may find wide application in regenerative medicine, particularly in bone regeneration with the use of MSCs.
Growth of Meromorphic Solutions of Finite Logarithmic Order of Linear Difference Equations
Authors: Belaïdi Benharrat 
Published: June 2015

Abstract
In this paper, we deal with the growth and the oscillation of solutions of the linear difference equation
an (z) f (z + n) + an-1 (z) f (z + n - 1) + ··· + a1 (z) f (z + 1) + a0 (z) f (z) = 0;
where an(z),···, a0(z) are meromorphic functions of finite logarithmic order such that an(z)a0(z) 6≢ 0.
Real-Time Digital Simulation and Analysis of Sliding Mode and P&O MPPT Algorithms for a PV System
Authors: Kolluru Venkata Ratnam , Mahapatra Kamalakanta , Subudhi Bidyadhar 
Published: June 2015

Abstract
This paper presents an integral Sliding Mode Controller (SMC) of a DC-DC boost converter integrated with a photovoltaic (PV) system for maximum power extraction. In view of improving the steady-state performance of the maximum power point tracking (MPPT), an integral of the error term is included in the sliding surface. The output of PV panels is connected to a DC-DC boost converter to regulate and enhance the voltage up to a desired level. By using SMC with integral term, the steady-state condition is obtained at less than 0.1 sec. With the proposed ISMC MPPT the maximum power extracted is more than 10% than the traditional Perturb & Observe (P&O) MPPT at standard test conditions (STC). The results obtained using the SMC are compared with that of the fixed step size P&O MPPT controller. The performances of the proposed sliding mode controller and the P&O controller are validated through experimentations using a Real-Time Digital Simulator (RTDS)-Opal RT.
An Optimized K-Harmonic Means Algorithm Combined with Modified Particle Swarm Optimization and Cuckoo Search Algorithm
Authors: Bouyer Asgarali , Farajzadeh Nacer 
Published: June 2015

Abstract
Among the data clustering algorithms, the k-means (KM) algorithm is one of the most popular clustering techniques because of its simplicity and efficiency. However, KM is sensitive to initial centers and it has a local optima problem. The k-harmonic means (KHM) clustering algorithm solves the initialization problem of the KM algorithm, but it also has a local optima problem. In this paper, we develop a new algorithm for solving this problem based on a modified version of particle swarm optimization (MPSO) algorithm and KHM clustering. In the proposed algorithm, MPSO is equipped with the cuckoo search algorithm and two new concepts used in PSO in order to improve the efficiency, fast convergence, and escape from local optima. MPSO updates the positions of particles based on a combination of global worst, global best with personal worst, and personal best to dynamically be used in each iteration of the MPSO. The experimental result on eight real-world data sets and two artificial data sets confirms that this modified version is superior to KHM and the regular PSO algorithm. The results of the simulation show that the new algorithm is able to create promising solutions with fast convergence, high accuracy, and correctness while markedly improving the processing time.
Revisiting simple methods to estimate drop size distributions: a novel approach based on infrared thermography
Authors: Lima João L.M.P. de , Silva Valdemir P. , Lima M. Isabel P. de , Abrantes João R.C.B. , Montenegro Abelardo A.A. 
Published: June 2015

Abstract
The infrared thermography has been successfully applied as a tool for high resolution imaging in different hydrological studies. This exploratory experimental study aimed at evaluating the possibility of using infrared thermography to determine the diameter of raindrops. Rain samples are collected on a pre-heated acrylic board, which is exposed to rain during an instant, and thermograms are recorded. The area of the thermal stains (“signatures” of the raindrops) emerging on the board is measured and converted to drop diameters, applying a calibration equation. Diameters of natural raindrops estimated using this technique were compared with laser disdrometer measurements; the Nash-Sutcliffe efficiency coefficient was used for evaluating the match between the resulting histograms of drop size distribution. Results confirm the usefulness of this simple technique for sizing and counting raindrops, although it is unsatisfactory in light rain or drizzle.