bluuebunny/crossref_metadata_2025_split huggingface dataset:
Goat Colostrum—Source of Toxigenic Bacillus Cereus
Authors: Bursová Š. , Nečasová D. , Dorotíková K. , Necidová L. , Vorlová L. 
Published: October 2019

Abstract
The aim of this study was to evaluate the toxigenic potential of Bacillus cereus strains isolated from frozen goat colostrum. Of the 50 phenotypically suspected B. cereus isolates, 39 (78.0 %) were confirmed as B. cereus by the polymerase chain reaction (PCR) method based on the gyrB gene detection. In these isolates, genes encoding the production of haemolysin BL (Hbl), a complex of non-haemolytic enterotoxins (Nhe) and emetic toxin were detected by the PCR method. In 36 (92.3 %) confirmed B. cereus isolates, genes encoding at least one type of toxins of interest were detected. In all toxigenic isolates, we found the presence of genes for Nhe production, and in 16 (41.0 %) of the isolates, genes encoding both Nhe and haemolysin BL were shown. Eight (20.5 %) of the emetic strains of B. cereus were identified. The emetic toxin production gene was always detected simultaneously with genes encoding non-haemolytic enterotoxin production. The ability to produce BL haemolysin and non-haemolytic enterotoxins were confirmed by the immunochromatographic method. In summary, goat colostrum can be a significant source of toxigenic strains of B. cereus.
Subcutaneous, Ganglion and Pulmonary Sarcoidosis in a Patient with Chronic Hepatitis C Virus Infection
Authors: State Nicoleta , Pascal Alexandrina , Bilavscki Karina , Tataranu Adrian 
Published: October 2019

Abstract
Chronic hepatitis C and sarcoidosis are both well-known diseases. Some studies support the hypothesis that the hepatitis C virus (HCV) may trigger sarcoidosis(1). We present a case of chronic hepatitis C, developing a silent lung systemic disease with subcutaneous and ganglionar nodules, ultimately proving to be sarcoidosis. The clinical picture is complicated by a hepatic nodule, challenging the treatment course. The unveiling of a sarcoidosis in a previously HCV infected patient may not be accidental, the course of infection could be influenced by systemic disease. The therapy of chronic hepatitis C in the context of sarcoidosis is very challenging and demands a careful monitoring(2).
Clinical Aspects and Case Management in a Patient with Long QT Syndrome, Probably Genetic
Authors: Ion Violeta , Pascari Cristina , Cristescu Florina 
Published: October 2019

Abstract
We present the evaluation of a 82 years old patient, diagnosed with long QT syndrome at 75 years (QTc =550 ms) and obstructive hypertrophic cardiomyopathy from 2011, complicated with ventricular fibrillation and torsade de pointes (QTc =840ms). In this situation, it was decided to follow via electrocardiography (ECG) her first and second degree relatives (daughter - 53 years old – QTc =505 ms, granddaughter - 23 years old – QTc =448ms), and to inform them about the importance of performing the cardiac echography to exclude a possible obstructive hypertrophic cardiomyopathy, and of the genetic testing. After the implantation of the ICD (implantable cardiac defibrillator) and on treatment with beta-blockers, the patient did not repeat any arrhythmic events, but still had the same electrocardiographic aspect of long QT interval. Due to the fact that the patient had a lot of other diseases, the administration of treatment which can prolong the QT interval was avoided. Long QT syndrome represents a congenital or acquired pathology, which sometimes can be induced by some drugs, and requires a correct diagnosis in order to establish an individualized pharmaceutical or surgical treatment, and to prevent the risk of sudden death by cardiac arrhythmias.
Approximate methods for the optical characterization of inhomogeneous thin films: Applications to silicon nitride films
Authors: Ohlídal Ivan , Vohánka Jiří , Franta Daniel , Čermák Martin , Ženíšek Jaroslav , Vašina Petr 
Published: October 2019

Abstract
In this paper the overview of the most important approximate methods for the optical characterization of inhomogeneous thin films is presented. The following approximate methods are introduced: Wentzel–Kramers–Brillouin–Jeffreys approximation, method based on substituting inhomogeneous thin films by multilayer systems, method based on modifying recursive approach and method utilizing multiple-beam interference model. Principles and mathematical formulations of these methods are described. A comparison of these methods is carried out from the practical point of view, ie advantages and disadvantages of individual methods are discussed. Examples of the optical characterization of three inhomogeneous thin films consisting of non-stoichiometric silicon nitride are introduced in order to illustrate efficiency and practical meaning of the presented approximate methods.
Nanoparticle shapes: Quantification by elongation, convexity and circularity measures
Authors: Kopanja Lazar , Lončar Boris , Žunić Dragiša , Tadić Marin 
Published: October 2019

Abstract
The goal of the nanoparticle synthesis is, first of all, the production of nanoparticles that will be more similar in size and shape. This is very important for the possibility of studying and applying nanomaterials because of their characteristics that are very sensitive to size and shape such as, for example, magnetic properties. In this paper, we propose the shape analysis of the nanoparticles using three shape descriptors – elongation, convexity and circularity. Experimental results were obtained by using TEM images of hematite nanoparticles that were, first of all, subjected to segmentation in order to obtain isolated nanoparticles, and then the values of elongation, convexity and circularity were measured. Convexity C
x(S) is regarded as the ratio between shape’s area and area of the its convex hull. The convexity measure defines the degree to which a shape differs from a convex shape while the circularity measure defines the degree to which a shape differs from an ideal circle. The range of convexity and circularity values is (0, 1], while the range of elongation values is [1, ∞). The circle has lowest elongation (ε = 1), while it has biggest convexity and circularity values (C
x = 1; C = 1). The measures ε(S), C
x(S), C(S) proposed and used in the experiment have the few desirable properties and give intuitively expected results. None of the measures is good enough to describe all the shapes, and therefore it is suggested to use a variety of measures so that the shapes can be described better and then classify and control during the synthesis process.
Magnetic properties of hematite (α − Fe2O3) nanoparticles synthesized by sol-gel synthesis method: The influence of particle size and particle size distribution
Authors: Tadic Marin , Panjan Matjaz , Tadic Biljana Vucetic , Lazovic Jelena , Damnjanovic Vesna , Kopani Martin , Kopanja Lazar 
Published: October 2019

Abstract
Using the sol-gel method we synthesized hematite (α − Fe2O3) nanoparticles in a silica matrix with 60 wt % of hematite. X-ray diffraction (XRD) patterns and Fourier transform infrared (FTIR) spectra of the sample demonstrate the formation of the α − Fe2O3 phase and amorphous silica. A transmission electron microscopy (TEM) measurements show that the sample consists of two particle size distributions of the hematite nanoparticles with average sizes around 10 nm and 20 nm, respectively. Magnetic properties of hematite nanoparticles were measured using a superconducting quantum interference device (SQUID). Investigation of the magnetic properties of hematite nanoparticles showed a divergence between field-cooled (FC) and zero-field-cooled (ZFC) magnetization curves and two maxima. The ZFC magnetization curves displayed a maximum at around T
B = 50 K (blocking temperature) and at T
M = 83 K (the Morin transition). The hysteresis loop measured at 5 K was symmetric around the origin, with the values of coercivity, remanent and mass saturation magnetization H
C10K ≈ 646 A/cm, (810 Oe), M
r10K = 1.34 emu/g and M
S10K = 6.1 emu/g respectively. The absence of both coercivity (HC300K = 0) and remanent magnetization (Mr300K = 0) in M(H) curve at 300 K reveals super-paramagnetic behavior, which is desirable for application in biomedicine. The bimodal particle size distributions were used to describe observed magnetic properties of hematite nanoparticles. The size distribution directly influences the magnetic properties of the sample.
NMR study of Au/Al nanosytems in solution
Authors: Kislyuk Victor , Melnyk Andrii , Buryak Nikolay , Trachevskij Volodymyr 
Published: October 2019

Abstract
Nuclear magnetic resonance spectroscopy (NMR) 1H, 35Cl, 27Al and 13C was applied to study underlying processes at the various stages of the synthesis of Au/Al nanoparticles. 35Cl spectrum was downfield shifted by 2.6 ppm as to the reference signal of the hydrated Cl− ion in NaCl solution. The evolution of the NMR spectra points to the formation of the stabilized shell around the gold containing nucleus. The shell restricts the supply of the reducing agents, which is the condition for the formation of Au2+ state at the concentration range in question. The electron paramagnetic resonance (EPR) spectra reveal formation of both Au2+ (g = 2.17) and Au+ (g < 2) intermediates incompletely reduced as well as Au0 clusters (g = 2.062) with odd number of atoms. The latter is coupled in many cases by the narrow signal with g = 2.0048 attributed to the radical in the supporting surrounding (tannin containing matrix in our case).
Amorphous silicon PEC-PV hybrid structure for photo-electrochemical water splitting
Authors: Mikolasek Miroslav , Kemeny Martin , Chymo Filip , Ondrejka Peter , Huran Jozef 
Published: October 2019

Abstract
The paper presents fabrication and characterization of amorphous silicon carbide (a-SiC:H) based structures for photo-electrochemical (PEC) water splitting. The increase of the photocurrent of PEC upon the decreased of CH4 flow during the deposition is associated with the decrease of the band gap and increased absorption of light in a-SiC:H. Photocurrent of 50 µA/cm2 is achieved for PEC structure prepared with the lowest CH4 flow during the deposition. An ITO/a-SiC:H/Si silicon heterojunction structure forming a simple photovoltaic cell (PV) with efficiency of 9.66% was prepared to support additional voltage hereby forming a hybrid PEC-PV system. ASA simulation revealed that a photocurrent of 0.62 mA/cm2 and solar to hydrogen efficiency of 0.76% can be achieved for hybrid a PEC-PV structure with 5 PVs connected in series behind the PEC cell. Further opportunities for increasing the performance are discussed and summarized.
Structural and optical characterization of Cu doped ZnO thin films deposited by RF magnetron sputtering
Authors: Toma Maria , Ursulean Nicolae , Marconi Daniel , Pop Aurel 
Published: October 2019

Abstract
Cu doped transparent ZnO thin films (CZO) were sputtered on soda lime glass substrates at three different distances between substrate and target. The effects of copper doping on the structural and optical properties were investigated by X-ray diffraction (XRD) and transmittance measurements. The XRD results indicated that CZO thin films have a preferential crystallographic orientation along the hexagonal wurtzite (002) axis. With increasing the distance between substrate-target, from 4 cm to 8 cm, the refractive index of the CZO films decreased. In the visible wavelength region, the average value of the transmittance was above 80%. Thus, significant changes in the structural and optical properties have occurred due to the decrease of the distance between the target-substrate and the residual compressive stress at the film-substrate interface arising during deposition.
The Organisation of Cultural and Social Life in Selected Successful Villages
Authors: Bahna Vladimír 
Published: October 2019

Abstract
This paper compares the methods of organisation of cultural and social life in three municipalities which were awarded the “Village of the Year” title, namely the municipalities of Oravská Lesná, Liptovská Teplička and Spišský Hrhov. The research in these three municipalities suggests several historical and socio-economic similarities between the villages of Oravská Lesná and Liptovská Teplička, which contrasts with the situation in Spišský Hrhov. These similarities and differences between the municipalities are also manifested at the level of their cultural and social life and development strategies. On one hand, we have the traditional mountainous villages with stable long-term and internally driven demography; on the other hand, a changing municipality with a high rate of immigration. In the former case, activities related to the identity of a traditional municipality are being developed, while in the latter case, the identity of the municipality is being actively created also through new cultural and social activities. The key factors of the municipalities’ cultural and social life in both cases are initiative inhabitants and proactive self-governments open to their initiatives.
Participatory Observation of the Celebration of Czechoslovakia’s Centenary at the All-Sokol Rally (“Let’s Get Stronger!”)
Authors: Beňušková Zuzana 
Published: October 2019

Abstract
The aim of this paper is to present the form of celebration of the 100th anniversary of the Czechoslovak Republic. The physical culture association Sokol played an important role in the foundation of the republic and became part of the Slovak civil associations scene in 1918. The XVIth All-Sokol Ralley (Všesokolský zlet) in 2018 was one of the official events dedicated to the celebration of Czechoslovakia’s anniversary. For this occasion, the Slovak-Czech piece of motion music „Spolu” (“Together”) was composed. Based on participatory observation of the rehearsals in the role of a trainee, as well as interviews with the author of the music and observations at the All-Sokol Ralley, I have explored the symbolism of the celebration and reflected on the participation of Slovak women in this event.
Perceived work ability index of public service employees in relation to ageing and gender: A comparison in three European countries
Authors: Pranjic Nurka , Gonzales Juan Manuel Garcia , Cvejanov-Kezunović Ljiljana 
Published: October 2019

Abstract

Background
Increasing longevity raised the prospect of a workplace for ageing workers. Previous studies reveal that work ability decreases with age, even among the healthy, and decreased significantly with age among women. The aim of the study is to examine the perception of work ability of public sector employees aged 55 years and older and gender differences in three European countries.

Methods
A prospective longitudinal study design and standardized “Work Ability Index” (WAI) were used. This study analysed the relationship between ageing, gender, and perceived work ability among 1653 employees aged 45.06±10.90 years (562 men and 1091 women) from Spain, Bosnia and Herzegovina and Monte Negro. The research was conducted in 2018.

Results
Older employees had a better WAI than their younger colleagues (P<0.001). The lowest prevalence rate 20% of excellent WAI was between 35 and 44 years of age. The reduction of WAI in Bosnia and Herzegovina was huge 68%, compared with 30% in Monte Negro (more than 2 times) and 14% in Spain (almost 5 times more).

Conclusion
Gender and age was not protector and predictor of excellent or reduced work ability. Work ability did not decrease with age among women and men, public sector employees. Work ability depends of health and safety, promotion and preventive activities at the workplace.
Erdheim-Chester disease: a case report with rare presentation of a catastrophic disease
Authors: Alves Rita Valério , Calixto Rita , Luz Ivan , Santos Paulo , Barreto Patrícia , Gonçalves Hernâni , Góis Mário , Viana Helena , Lobos Ana Vila 
Published: October 2019

Background:
Erdheim-Chester disease (ECD) is a non-Langerhans cell histiocytoses with multiorgan xanthomatous infiltration of tissues by histiocytes, surrounded by fibrosis.

Case Presentation:
A 68-year-old Caucasian female was admitted to the emergency department for dyspnea. The patient was given empiric antibiotic therapy with Piperacilin/Tazobactam, but after 10 days the patient underwent respiratory failure accompanied with worsening of the renal function, noninvasive ventilation and diuretics for perfusion were given, but the treatment was unresponsive. Kidney Computed Tomography showed enlargement of both kidneys, suggesting an inflammatory process. A renal biopsy was performed which confirmed the diagnosis of ECD.

Conclusion:
It is an overlooked diagnosis due to its rarity, variable presentation, and the subsequent manifestations may also develop after several years.
AVALIAÇÃO DAS PROPRIEDADES MECÂNICAS E DA RESISTÊNCIA À CORROSÃO ELETROQUÍMICA DO AÇO ASTM A572 E DE JUNTAS SOLDADAS
Authors: Vidal dos Santos Fernando , Gonçalves Carneiro José Rubens 
Published: October 2019

A demanda por materiais que combinassem alta resistência mecânica associada a melhor soldabilidade, tenacidade e resistência à corrosão atmosférica impulssionou a criação dos aços microligados. Este trabalho teve como objetivo avaliar a estrutura, as propriedades mecânicas e a resistência à corrosão eletroquímica numa solução de ácido sulfúrico do aço microligado ASTM A572 Grau 5- antes e após processos de soldagem GMAW - MAG e FCAW. A fim de analisar a macroestrutura e a microestrutura foram utilizadas as técnicas de estereomicroscopia e microscopia ótica, respectivamente. A avaliação das propriedades mecânicas se deu através de ensaios de microdureza e de tração. Utilizando a modelagem tridimensional computacional com o software Abaqus, foi possível realizar simulações por meio da técnica de elementos finitos, que reproduz o ensaio graficamente a partir da curva tensão versus deformação verdadeira proveniente do ensaio mecânico de tração. Não foram observadas descontinuidades nas juntas soldadas e valores de microdureza e das propriedades mecânicas de tração não indicaram fragilização do material. Verificou-se que a simulação numérica é eficiente e confiável quando comparados com os ensaios mecânicos de tração. As curvas seguiram de forma paralela no regime elástico, tendo valores um pouco menores. Os resultados do ensaio de corrosão eletroquímica mostraram que a soldagem GMAW – MAG resultou num metal de solda com resistência à corrosão maior que do metal base, mostrando que a escolha do processo de soldagem e do metal de adição é importante não só para estabelecer propriedades mecânicas apropriadas, mas também resistência à corrosão eletroquímica.
PENYIMPANGAN PRINSIP KESANTUNAN BERBAHASA DALAM INTERAKSI BELAJAR-MENGAJAR BAHASA INDONESIA SISWA KELAS XI SMA NEGERI 2 PANCA RIJANG SIDENRENG RAPPANG [The Deviations of Language Politeness Principle in Learning-Teaching Interaction in Bahasa Indonesia of Class XI Students at SMAN 2 Panca Rijang Sidenreng Rappang]
Authors: Musyawir Musyawir 
Published: October 2019

The research aims to describe the types of deviation of language politeness principle and the cause of deviation. The research was qualitative. The data of the research were all of the students’ speeches or oral conversation discourse and speech information situation. The data source was obtained from the students of class XI at SMAN 2 Panca Rijang Sidenreng Rappang.The data of the research were collected by recording, note-king, and unstructured interview technique. The data of the research were analyzed through four stages, namely data collections, data reduction, presentation, as well as data analysis and conclusions/verification. The results of the research reveal that the deviations of language politeness principle which were occurred in learning-teaching interaction in Bahasa Indonesia of class XI students at SMAN 2 Panca Rijang Sidenreng Rappang are single and double deviation. The causes of the deviation of language politeness principle in learning-teaching interactions in Bahasa Indonesia of class XI students at SMAN 2 Panca Rijang Sidenreng Rappang cover (1) deviation caused by the speakers intentionally accused the speaking partner, (2) intentionally speak not accordance with the context, (3) protective on opinion, (4) the speaker’s emotional impulse, (5) direct critic with harsh words, (6) mocking, and (7) no sympathy given to the speaking partner. Penelitian ini bertujuan untuk mendeskripsikan jenis-jenis penyimpangan prinsip kesantunan berbahasa dan penyebab penyimpangan. Jenis penelitian ini tergolong penelitian kualitatif. Data dalam penelitian ini adalah seluruh tuturan siswa atau wacana percakapan lisan dan informasi situasi tutur. Adapun sumber data diperoleh dari siswa kelas XI SMA Negeri 2 Panca Rijang Sidenreng Rappang. Teknik pengumpulan data yang digunakan adalah teknik rekam, teknik catat, dan wawancara tidak terstruktur. Analisis data melalui empat tahapan,yakni pengumpulan data, reduksi data, penyajian sekaligus penganalisisan data dan penyimpulan /verifikasi. Hasil penelitian menunjukkan bahwa penyimpangan prinsip kesantunan berbahasa yang terjadi dalam interaksi belajar-mengajar bahasa Indonesia siswa kelas XI SMA Negeri 2 Panca Rijang Sidenreng Rappang, yakni penyimpangan tunggal dan penyimpangan ganda. Penyebab penyimpangan prinsip kesantunan berbahasa dalam interaksi belajar-mengajar bahasa Indonesia siswa kelas XI SMA Negeri 2 Panca Rijang Sidenreng Rappang meliputi (1) penyimpangan disebabkan oleh penutur sengaja menuduh mitra tutur, (2) sengaja berbicara tidak sesuai dengan konteks, (3) protektif terhadap pendapat, (4) dorongan rasa emosi penutur, (5) kritik secara langsung dengan kata-kata kasar, dan (6) mengejek, serta (7) tidak memberikan rasa simpati kepada mitra tutur.
Fathers perceptions and personal experiences of Complementary feeding of children 6 to 23 months in south-western Zimbabwe
Authors: Moyo Shamiso Alice , Schaay Nikki 
Published: October 2019

Background: The role of fathers in infant and young child feeding has not been explored in Zimbabwe. To date, local research studies on the role of parents in infant and young child feeding have focused more on the mothers than the fathers, and more on breastfeeding than complementary feeding practices, which begin from 6 months of age.
Purpose of study: To explore the knowledge and extent of involvement of fathers in the complementary feeding of children 6 to 23 months in Zimbabwe.
Method: Through a qualitative approach, 10 fathers with children aged 6 to 23 months participated in the study. Local key informants were used to validate information given by fathers. Thematic analysis was used to identify emergent themes.
Results: There has been a notable change in behaviour among the fathers in comparison to what they did 10 years ago. For example, they support their wives with household activities such as playing with the child, fetching water and firewood in bulk and cooking simple meals for their children, though the latter was generally reported as being done only during the mothers’ absence. Some of the fathers however, are still mindful of what the predominant culture defines as a father’s role in child feeding and thus only do selective activities.
Major conclusion: This qualitative study, a first of its kind, delved into some of the experiences and perceptions of fathers in the complementary feeding of infants 6 to 23 months in Zimbabwe. Rich exploratory insights into the subject matter have been provided and can thus be expanded upon in future research.