bluuebunny/crossref_metadata_2025_split huggingface dataset:
Results of the Verification of the Statistical Distribution Model of Microseismicity Emission Characteristics
Authors: Cianciara Aleksander 
Published: October 2016

Abstract
The paper presents the results of research aimed at verifying the hypothesis that the Weibull distribution is an appropriate statistical distribution model of microseismicity emission characteristics, namely: energy of phenomena and inter-event time. It is understood that the emission under consideration is induced by the natural rock mass fracturing. Because the recorded emission contain noise, therefore, it is subjected to an appropriate filtering. The study has been conducted using the method of statistical verification of null hypothesis that the Weibull distribution fits the empirical cumulative distribution function. As the model describing the cumulative distribution function is given in an analytical form, its verification may be performed using the Kolmogorov-Smirnov goodness-of-fit test. Interpretations by means of probabilistic methods require specifying the correct model describing the statistical distribution of data. Because in these methods measurement data are not used directly, but their statistical distributions, e.g., in the method based on the hazard analysis, or in that that uses maximum value statistics.
Maximal Amplitudes of Vibrations of the Suspended Screens, During the Transient Resonance
Authors: Michalczyk Jerzy , Cieplok Grzegorz 
Published: October 2016

Abstract
A usefulness of known methods for estimations of maximal amplitudes of suspended vibrating screens, in the transient resonance, was analysed in the paper. The way of adapting – for this type of machines – the new, developed by the authors, methods of analysing the transient resonance was indicated. Their accuracy was estimated by comparing the obtained results with the results of simulation investigations performed on the model, which takes into account the influence of the body vibrations on the vibrator motion.
Roof Weakening of Hydraulic Fracturing for Control of Hanging Roof in the Face End of High Gassy Coal Longwall Mining: A Case Study
Authors: Huang Bingxiang , Wang Youzhuang 
Published: October 2016

Abstract
The occurence of hanging roof commonly arises in the face end of longwall coal mining under hard roof conditions. The sudden break and subsequent caving of a hanging roof could result in the extrusion of gas in the gob to the face, causing gas concentrations to rise sharply and to increase to over a safety-limited value. A series of linear fracturing-holes of 32 mm diameter were drilled into the roof of the entries with an anchor rig. According to the theory that the gob should be fully filled with the fragmentized falling roof rock, the drilling depth is determined as being 3~5 times the mining height if the broken expansion coefficient takes an empirical value. Considering the general extension range of cracks and the supporting form of the entryway, the spacing distance between two drilling holes is determined as being 1~2 times the crack’s range of extension. Using a mounting pipe, a high pressure resistant sealing device of a small diameter-size was sent to the designated location for the high-pressure hydraulic fracturing of the roof rock. The hydraulic fracturing created the main hydro-fracturing crack and airfoil branch cracks in the interior of the roof-rock, transforming the roof structure and weakening the strength of the roof to form a weak plane which accelerated roof caving, and eventually induced the full caving in of the roof in time with the help of ground pressure. For holes deeper than 4 m, retreating hydraulic fracturing could ensure the uniformity of crack extension. Tested and applied at several mines in Shengdong Mining District, the highest ruptured water pressure was found to be 55 MPa, and the hanging roof at the face end was reduced in length from 12 m to less than 1~2 m. This technology has eliminated the risk of the extrusion of gas which has accumulated in the gob.
Cardamine fialae Fritsch (Brassicaceae) a New Species in Croatian Flora
Authors: Vukojević Mara , Kosić Ivana Vitasović , Alegro Antun , Lakušić Dmitar , Bogdanović Sandro 
Published: October 2016

AbstractDuring a floristic survey of the northern slopes of Matokit Mountain in the surroundings of Vrgorac in central Dalmatia, a peculiar population ofCardaminebelonging to theC. maritimacomplex was found. Because of its morphology, general habit, type of leaves and fruits, the collected plants were recognized asC. fialaehitherto know only from Bosnia and Herzegovina. Morphologically,C. fialaeis similar to the Serbian endemicC. serbicawith which it shares following characteristics: auricules at the base of lower cauline leaves, stem and rosette leaves bipinnate, margin of leaflets serrate with hairy main stem and sepals, although it differs in having bigger petals and sepals, longer filaments and 1–2 lateral stems.C. fialaegrows on lower altitudes in rocky ground within the vegetation of forest fringes of the sub-Mediterranean zone. This is the first report of the endemic speciesC. fialaein Croatian flora.
Ultrasound-assisted osmotic dehydration and convective drying of apples: Process kinetics and quality issues
Authors: Mierzwa Dominik , Kowalski Stefan J. 
Published: October 2016

Abstract
The aim of the present theme issue was to study the influence of ultrasound enhancement on the kinetics of osmotic dehydration and the effect of convective drying from the point of view of drying time and quality of dried products. Apple fruit was used as the experimental material. The kinetics of osmotic dehydration with (UAOD) and without (OD) ultrasound enhancement were examined for 40% fructose and sorbitol solutions. The effective dehydration time of osmotic process was determined. Preliminary dehydrated samples with OD and UAOD were next dried convectively with (CVUS) and without (CV) ultrasound assistance. The influence of OD and UAOD on the kinetics of CV and CVUS drying was analysed. The parameters of water activity and colour change were measured for the assessment of product quality after drying process.
Analysis of the mechanism of gas bubble break-up in liquids during the self-aspirating impeller operation
Authors: Stelmach Jacek , Kuncewicz Czesław , Musoski Radosław 
Published: October 2016

Abstract
Feasibility of a model of gas bubble break-up and coalescence in an air-lift column enabling determination of bubble size distributions in a mixer with a self-aspirating impeller has been attempted in this paper. According to velocity measurements made by the PIV method with a self-aspirating impeller and Smagorinski’s model, the spatial distribution of turbulent energy dissipation rate close to the impeller was determined. This allowed to positively verify the dependence of gas bubble velocity used in the model, in relation to turbulent energy dissipation rate. Furthermore, the range of the eddy sizes capable of breaking up the gas bubbles was determined. The verified model was found to be greatly useful, but because of the simplifying assumptions some discrepancies of experimental and model results were observed.
Cultural Rural Development in the Czech Republic (Case Study of the Liberec Region)
Authors: Antošová Gabriela 
Published: October 2016

Abstract
The contribution aims at determining the endogenous potential for a proposal for sustainability and potential development of tourist destinations located in the Czech border areas - Liberec region - that lag behind in rural development. Based on the results of the empirical research, according to optimal scaling the ASEB-C analysis is applied suggesting the LAC (Limits of Acceptable Change) planning system will improve sustainability and competitiveness of all LAU 1 (in the Liberec region) and of the specific touristic destinations. The potential of development in the Czech border areas is in the stagnation phase, due to the fear and (dis)embedded identity in some less developed border areas. It should be evident that even in the Czech rural border areas the potential of “growth of endogenous potentials seems feasible” in combination with an endogenous and exogenous model of regional rural development.
In Vitro Study of Temperature Changes in Pulp Chamber During Root Planing Procedure Using Er:YAG Laser
Authors: Yaneva Blagovesta K. , Zagorchev Plamen I. , Firkova Elena I. , Glavinkov Ivan T. 
Published: October 2016

Abstract
Aim: To assess temperature changes at specified time intervals during Er:YAG laser scaling and root planing of surfaces with dental calculus.
Materials and methods: Fifteen single-rooted teeth with advanced periodontal disease were extracted and fixed in a cylinder thermostat filled with distilled water at constant temperature (35.5°C). A specially designed thermal probe (type K thermocouple) accurate to ±0.1°C over the range from 20°C to 80°C was fitted into the pulp chamber of tooth sample. Scaling and root planing of the mesial and distal root surfaces was performed using an Er:YAG laser (Lite Touch, Syneron Dental, Israel) with a wavelength of 2940 nm, provided with a chisel tip, and at the following settings: output energy 100 mJ and 50 Hz, duration of irradiation - 40 sec, the tip in contact mode oblique to the root surface at an angle of approximately 10-15 degrees and water spray level 5-6. The temperature inside the pulp chamber was measured every 10 sec.
Results: The temperature in the pulp chamber taken every 10 seconds and compared with the temperature of 35.5°C at baseline decreased by 1.6°C, 2.4°C, 2.5°C, and 2.5°C for the first, second, third and fourth measurement, respectively. These changes did not reach statistical significance.
Conclusion: The Er:YAG laser does not increase the temperature inside the pulp chamber. The assessed changes do not depend on the duration of irradiation which was kept within 40 seconds. Therefore, this treatment modality causes no thermal damage to the pulp under the above defined conditions and can be considered safe.
Distant Liver Metastases as a Major Factor Influencing Survival in Patients with Colorectal Cancer
Authors: Penchev Dimitar K. , Vladova Lilyana V. , Zashev Miroslav Z. , Gornev Radosvet P. 
Published: October 2016

Abstract
Aim: To assess the effect of the factor ‘hepatic metastatic disease’ on long-term outcomes in patients with colorectal cancer.
Materials and methods: We analysed retrospectively 200 randomly selected patients. Forty-two of them were excluded from the study for different reasons so the study contingent was 158 patients over a period of 23 years. All were diagnosed and treated in the Lozenetz University Hospital, in the Department of General Surgery. 125 of the patients were diagnosed with colorectal cancer without distant metastases and 33 of the patients had liver metastases as a result of colorectal carcinoma. The statistical analysis was performed using SPSS 19 IMB, with a level of significance of P < 0.05 at which the null hypothesis is rejected. We also used descriptive analysis, Kaplan-Meier estimator, Log-Rank Test and Life-Table statistics models.
Results: The median survival for patients without metastases was 160 months, and the median was 102 months. The median survival for patients with liver metastases was 28 months and the median was 21 months. One-year survival for patients without metastases was 92% versus 69% in patients with liver metastases. Conclusion: Average, annual and median survivals are influenced statistically significantly by the presence of liver metastases compared to overall survival and that of patients without metastatic colorectal cancer. Liver metastatic disease is a proven factor affecting long-term prognosis and survival in patients with colorectal cancer.
Autoimmune Phenomena in Patients with Solid Tumors
Authors: Nenova Ivanka S. , Valcheva Mariana Y. , Beleva Elina A. , Tumbeva Dora Y. , Yaneva Marianna P. , Rancheva Emilia L. , Grudeva-Popova Zhanet G. 
Published: October 2016

Abstract
Introduction: Autoimmune disorders have been documented in solid tumors and malignant hematological disorders. They are very common and well studied in lymphomas which are associated with immune imbalance. They are less common in solid tumors and are categorized as paraneoplastic syndromes with unclear pathogenesis.
Aim: The aim of the present study was to find the frequency of autoimmune phenomena in solid tumors of various origin, location and status of the tumor.
Patients and methods: Between 2000 and 2014 we studied 1083 patients with solid tumors that were diagnosed and treated in St George University Hospital, Plovdiv.
Results: We found higher incidence of these phenomena in prostate and ovarian carcinomas (9.01% and 5.6%, respectively) than in other solid tumors. Their distribution by type of autoimmune disease showed that vasculitis, polyneuritis and autoimmune hemolytic anemia have the highest frequency of all. Immune thrombocytopenia, seronegative arthritis, psoriasis, polymyositis are less commonly documented. The autoimmune paraneoplastic phenomena manifest themselves metachronously, less commonly synchronously, with the tumor. In most cases, their clinical manifestation is a progressive disease or metastatic malignant disorder which respond favourably to therapy.
Conclusion: Paraneoplastic autoimmune phenomena are found very commonly in prostate and ovarian carcinomas. They occur in the course of the evolvement of neoplasm and can regress with medicamentous or surgical treatment of the malignoma.
Relationship between visual field changes and optical coherence tomography measurements in advanced open-angle glaucoma
Authors: Kostianeva Snezhina S. , Konareva-Kostianeva Marieta I. , Atanassov Marin A. 
Published: October 2016

Abstract
Aim: To assess relationships between functional changes in visual field and structural changes in advanced open-angle glaucoma (OAG) found using spectral-domain optical coherence tomography (SD-OCT).
Methods: Thirty-one eyes of 25 patients with OAG were included in this study. Besides the routine ophthalmological exam the patients underwent standard automated perimetry (SAP) (Humphrey Field Analyzer) and SD-OCT (RTVue–100) performed within 6 months. The global perimetric indices in the study group were as follows: mean deviation (MD) 12.33±6.18 dB and pattern standard deviation (PSD) 9.17±3.41 dB. The relationship between OCT measurements and MD and PSD was evaluated by correlation analysis (Pearson’s correlation coefficient) and regression analysis (linear and nonlinear regression models).
Results: Thickness measurements of the lower halves of ganglion cell complex (GCC) and retinal nerve fiber layer by two scanning protocols (ONH and 3.45) showed these to be thinner than the upper halves, but the difference failed to reach statistical significance. The correlations between global indices MD/PSD and most of the analysed quantitative OCT measurements were moderate (r in the range between 0.3 and 0.6). The correlation between MD and GCC showed nonlinear cubic regression (R2=0.417, P=0.004). Good correlation was found between MD and GLV (R2=0.383; P=0.008). Linear regression (P<0.05) was found only between MD and Cup area (R2=0.175, P=0.024) and between MD and RNFL by 3.45 protocol (R2=0.131, P=0.045).
Conclusion: Nonlinear regressive models appear to be more appropriate in the assessment of the correlations between functional and structural changes in eyes with advanced glaucoma. The correlations we found were moderate.
Total Antibiotics — A New Possible Alternative for the Screening of Coccidiostat Residues in Poultry Meat
Authors: Jeevanandan V. , Kožárová I. 
Published: October 2016

Abstract
The Total Antibiotics test is a microbial inhibition test which has been recently introduced for the detection of antibiotics in meat. The aim of this study was to determine whether it would be suitable for the detection of coccidiostats in poultry meat. A comparison with the Premi®Test was assessed also for the suitability of the detection of coccidiostats in poultry meat. A selection of poultry meat samples of different organ parts were assessed with 14 samples from Slovakian farms that had previously been tested for coccidiostats by the Veterinary and Food Institute in Košice. In addition, another 8 samples from varied Slovakian supermarkets such as Lidl, Billa and Tesco with samples of chicken or duck meat, were tested. Each prepared sample was added to the Total Antibiotics kit tubes and incubated. The samples from all sources showed a mixture of positive and negative results for the detection of coccidiostats.
For the Premi®Test, the samples used the same extraction procedure as the Total Antibiotics, placed in Premi®Test kit tubes and incubated. The Premi®Test demonstrated a mixture of positive and negative results, as similar to the Total Antibiotics for coccidiostats in the poultry farm samples. However, the Premi Test revealed many more negative results for the supermarket sources compared to the Total Antibiotics. Therefore, based on the total number of positive results, we concluded that Total Antibiotics is more sensitive for the detection of coccidiostats in poultry meat, but depending on the source of the samples, both Total Antibiotics and Premi®Test had either similar or opposite results for the detection of coccidiostats.
Three Technocratic Cabinets in the Czech Republic: A Symptom of Party Failure?
Authors: Brunclík Miloš 
Published: October 2016

AbstractThis article compares three technocratic cabinets that were appointed in the Czech Republic. Its aim is to determine to what extent the cabinets can be understood as a failure of political parties. The article outlines the concept of party failure. It argues that patterns of party failure can be found in all cases. However, in the last case—the technocratic cabinet of Jiří Rusnok—party failure was only partial and indirect; its technocratic cabinet cannot be interpreted as resulting from an inability of the parties to form a partisan cabinet, but rather it resulted from the president’s imposition of a technocratic cabinet. This imposition took place against the will of the parliamentary parties that sought to form a cabinet composed of party politicians immediately or following early elections.
Three-step Anti-aMPV IgA Expression Profile Evaluation in Turkeys of Different Immunological Status after TRT Vaccination
Authors: Śmiałek M. , Tykałowski B. , Pestka D. , Welenc J. , Stenzel T. , Koncicki A. 
Published: October 2016

Abstract
Maternally derived antibodies (MDA) don not protect turkeys against rhinotracheitis (TRT) but high MDA influences upper respiratory tract (URT) immunity stimulation after avian Metapneumovirus (aMPV) vaccination. Humoral immunity can not be considered as an indicator of protection against TRT, but specific antibodies inhibit aMPV replication and alleviate the course of TRT. Scarce reports indicate the role of IgA in protection against TRT. The aim of our study was to investigate the impact of MDA on stimulation, antigen specificity acquisition of B lymphocytes, and the production of specific IgA after TRT vaccination of turkeys.
The results of our study indicate that MDA on the day of TRT vaccination causes disturbances at different levels of specific humoral immunity expression including antigen specificity acquisition of B IgA+ lymphocytes as well as production and secretion of IgA. Vaccine immunity against aMPV associated with sIgA is well expressed in birds not possessing MDA on the day of TRT vaccination, whereas it is inhibited in MDA+ birds.
These results corroborate our previous findings and indicate that MDA could be responsible for TRT vaccination failure. These findings could explain the observed frequency of TRT field outbreaks despite aMPV vaccination of turkey flocks.
Evaluation of Acute Phase Proteins in Clinically Healthy Dairy Cows in Perinatal Period and During Lactation
Authors: Dębski B. , Nowicki T. , Zalewski W. , Ochota M. , Mrowiec J. , Twardoń J. 
Published: October 2016

Abstract
The estimation of acute phase proteins (APP), which are recognized as inflammation markers is a good method for animal health monitoring. Several factors such as obesity, age and sex are also known to modulate APP status. We evaluated the influence of pregnancy and lactation in 65 clinically healthy dairy Holstein-Friesian dairy cows, 2nd÷4th lactation, chosen from 3 different dairy farms located in South West part of Poland. Bovine C-reactive protein (CRP), haptoglobin and fibrinogen were assayed using commercial ELISA kits. The highest values of CRP and haptoglobin were observed in cows during the first month after calving. The highest concentrations of fibrinogen was found in a group of cows prior to expected date of parturition and the level of this protein in blood plasma was decreasing during lactation. The significant differences of analyzed APPs among cows before delivery, during first month after calving and in lactation (1-3 months after delivery) suggested that factors like pregnancy and stage of lactation would have an influence on their concentration.
Development and Validation of an Analytical Method for Determination of Ergot Alkaloids in Animal Feedingstuffs with High Performance Liquid Chromatography-fluorescence Detection
Authors: Kowalczyk E. , Patyra E. , Grelik A. , Kwiatek K. 
Published: October 2016

Abstract
A high performance liquid chromatography combined with fluorescence detection (HPLC-FLD) method was developed for determination of five ergot alkaloids (EA): ergometrine, ergotamine, ergocornine, ergocrypine and ergocristine in animal feedingstuffs. The method was based on the application of QuEChERS salts for extraction and modified QuEChERS dispersive SPE for the cleanup step. Alkaloids separation was performed on a C18, 250 mm x 4.6 mm, 5 μm column with the mobile phase containing ammonium carbonate and acetonitrile. The excitation and emission wavelengths were 330 and 420 nm respectively. The method was validated according to the Commission Decision 2002/657/EC and all parameters are in agreement with the requirements of the Decision. Linearity was determined for the concentration range of 25-400 μg/kg. The coefficient of determination (R2) for all curves was from 0.985 to 0.996. The limit of detection (LOD) was in the range 3.23 to 6.53 μg/kg and the limit of quantification (LOQ) from 11.78 to 13.06 μg/kg. The decision limit (CCα) ranged from 29.56 to 43.08 μg/kg and detection capability (CCβ) from 40.65 to 51.01 μg/kg. The highest coefficient of variation (CV) for repeatability was 14.3% and for reproducibility 15.4%.