bluuebunny/crossref_metadata_2025 huggingface dataset:
On the Thrust of a Single Electrode Electrohydrodynamic Thruster
Authors: Ilit’ Tomáš , Váry Michal , Valko Pavol
Published: May 2018

Linear thrust generation by a single pin emitter electrode under AC excitation has been studied. Presented are thrust measurements of a single electrode thruster, in comparison with classical, two electrode electrohydrodynamic thruster. The experiments show comparable thrust for both configurations at low voltage levels, suggesting higher thrust-to-weight ratio of single electrode thrusters at low applied voltages. Further, a hypothesis of single electrode thrust creation is proposed.
Atypical Case of Pityriasis Rosea in a Child Following Streptococcal Erythema Nodosum
Authors: Chiriac Anca , Brzezinski Piotr , Podoleanu Cristian , Stolnicu Simona
Published: May 2018

Introduction:Pityriasis rosea (PR) is a widespread skin erythemato-squamous eruption, occurring mostly in young adults.

Case presentation:A 9-year-old patient presented with multiple lesions developed after streptococcal pharyngitis and erythema nodosum diagnosed and treated with penicillin prior to the PR.

Conclusion:This unique case should be considered a coincidence of two consecutive diseases.
The Exploitation Problems Marine Light Constructions for Corrosion Resistance / Problemy Eksploatacyjne Lekkich Konstrukcji Morskich w Aspekcie Odporności Korozyjnej
Authors: Jurczak Wojciech
Published: May 2018

Corrosive degradation of construction materials for marine structures is a natural phenomenon. The extent of deterioration in mechanical properties of materials used in ship construction is directly linked to the chemical makeup of the material as well as the prevailing environmental conditions (e.g. salinity, physical stress) an the applied anti-corrosive coating. The paper presents results of research into stress corrosion of highly durable aluminum alloys. In order to increase the safety while using the above mentioned components, logging of corrosive potential has been introduced in the case of selected (corrosion-prone) number of surfaces of the quarter-section in relation the model 620 ship, made of 7020 alloy, so that the hazard of corrosive breach can be monitored.
Modeling of Performance And Safety of a Multi-Task Unmanned Autonomous Maritime Vehicle / Modelowanie Ruchu i Bezpieczeństwa Wielozadaniowego Bezzałogowego Autonomicznego Pojazdu Wodnego
Authors: Gerigk Mirosław K.
Published: May 2018

At the beginning of the paper the aim of research is presented. Then the method is introduced. Next, the unmanned autonomous maritime vehicle is briefly described. The following chapter concerns a model of vehicle performance including the ballasting and motion. Some information on an integrated steering, positioning and stabilization system of the vehicle is briefly presented in the paper. Such the system enables to obtain a fully autonomous vehicle. In the final part of the paper some issues connected with the risk assessment and assessment of the vehicle safety are introduced.
The Analysis and Evaluation Assessment of Safety of Selected Types of Exploitation Systems Means of Transport / Analiza i Ocena Porównawcza Bezpieczeństwa Działania Wybranych Typów Systemów Eksploatacji Środków Transportowych
Authors: Muślewski Łukasz , Bojar Piotr , Muciok Łukasz , Lewalski Michał
Published: May 2018

In a situation of increasing the supply of means of individual transport and not capable of following the development of infrastructure, an important issue is the issue of ensuring adequate levels of efficiency, safety and the competitiveness of the operation of the exploitation of public transport services. Factors affecting the safe operation pending exploitation systems of vehicles, in a differentiated way affect the level of safety provided services in smaller cities - up to 100 thousand inhabitants, with respect to the cities which are agglomerations of more complex structure, which are cities the number to 500 thousand inhabitants. This paper attempts to analyze and evaluate the safety of the operation of the public transport services exploitation, on the basis of the same assessment criteria, comparing two different sized urban areas.
The Impact of Propeller on Aerodynamics of Aircraft / Wpływ Śmigła Na Aerodynamikę Samolotu
Authors: Zalewski Wiesław
Published: May 2018

The paper presents a numerical analysis of the impact of working propellers on the aerodynamics of the aircraft. Analysis was made on the example of a twin-engined, unmanned aircraft with electric drive during the low altitude flight. Three configurations were studied and compared: the plane without propellers, the plane with pusher propellers and the plane with tractor propellers. For each configuration distributions of aerodynamic coefficients along the span of the wing and their global values for the entire aircraft were estimated. Calculations were performed using the Fluent solver with implementation of a simplified model of propeller based on the Blade Element Theory. Results of the analysis indicate a slight advantage of the tractor propellers configuration.
Radio Frequency Co-Site Management
Authors: Bouleanu Iulian , Alexandrescu Dorin , Bora Mircea
Published: May 2018

The radio spectrum is a limited national resource, essential for some governmental applications and increasingly important for a series of non-governmental applications. The allocation of radio resources is done in a centralized manner, designating frequency managers of the defense system structures as local administrators of the resources allotted to the supported echelon. They have a limited number of frequencies they can assign to the emission sources in their area of responsibility. The article addresses the issue of radio spectrum management in the frequency allocation plans when using a large number of emission and reception sources for means of communication and non-communication in a small area. Locating several emission sources in the same site leads to different types of disturbing signals: emissions outside the bandwidth, harmonics and intermodulation. The article categorizes and describes these sources, presents the results of measurements distinguishing them, as well as the results of implementing some protective measures. Finally, the authors suggest a software solution for the local distribution of frequency resources.
The Quadrotor-Based Night Watchbird UAV System Used In The Force Protection Tasks
Authors: Szabolcsi Róbert
Published: May 2018

The Unmanned Aerial Vehicles (UAV), or Unmanned Aerial Systems (UAS) are widely used today in real time, high precision reconnaissance missions. The UAS can lean on various types of the UAVs, whilst this paper deals only with multirotor UAV applications. The special flying abilities of the multirotor UAVs (e.g. vertical take-off and landing, hovering, flying at extremely low altitudes and airspeeds) open new areas in UAV applications. Challenges of the modern era put many problems to be solved such as problems of safeguarding in civil life, handling disaster management tasks, border control, and, finally, solution of force protection tasks in operational theatre, or out of war theatre. Author will lay down a brand-new concept of the UAV system applied in bad visibility to improve efficiency of the solution of the force protection tasks, which reduces human resources needed for this purpose. The proposed Night Watchbird UAV system is a new one using modern methods and principles to reach basic goal of reconnaissance providing real-time information for commanders, and for military forces, in general.
Analysis Regarding The Maintenance Efficiency Of Military Technical Systems
Authors: Virca Ioan , Manescu Gabriel , Prunescu Gheorghe
Published: May 2018

The purpose of this paper is to highlight the necessity of rethinking and restructuring the current system of maintenance for the military technical systems, based on the criteria of technical and economic efficiency of maintenance, as well as its management. The current maintenance system, rigorously planned and organized, but with irregular allocation of financial and material resources, could be made more efficient to the extent in which appropriate financial funds are provided and conceptual changes are brought to the objectives and to the content of the two components of maintenance, that of preventive maintenance (PREMENT) and of corrective maintenance (CORMENT) respectively. These changes at the operational level will be able to determine the reorientation of the financial resources towards maximizing the preventive maintenance activities. This is a major trend of the management of technical military systems maintenance within the NATO member states which results in important achievements in the field of manufacturing and employing military equipment.
How and why actions are selected: action selection and the dark room problem
Authors: Venter Elmarie
Published: May 2018

In this paper, I examine an evolutionary approach to the action selection problem and illustrate how it helps raise an objection to the predictive processing account. Clark examines the predictive processing account as a theory of brain function that aims to unify perception, action, and cognition, but - despite this aim - fails to consider action selection overtly. He off ers an account of action control with the implication that minimizing prediction error is an imperative of living organisms because, according to the predictive processing account, action is employed to fulfill expectations and reduce prediction error. One way in which this can be achieved is by seeking out the least stimulating environment and staying there (Friston et al. 2012: 2). Bayesian, neuroscientific, and machine learning approaches into a single framework whose overarching principle is the minimization of surprise (or, equivalently, the maximization of expectation. But, most living organisms do not find, and stay in, surprise free environments. This paper explores this objection, also called the “dark room problem”, and examines Clark’s response to the problem. Finally, I recommend that if supplemented with an account of action selection, Clark’s account will avoid the dark room problem.
Ex-situ characterization of pre- and post-transient specimens of Zr1Nb alloys
Authors: Krausová A. , Macák J. , Novák M.
Published: May 2018

The ex-situ tests were performed with Zr1Nb alloy specimens
that had been pre-exposed to the environment with an
elevated concentration of lithium (70 ppm Li as LiOH) at the
temperature of 360 °C for a period of 63 to 77 days prior to
the measurement. The impedance changes at the phase alloy-
-oxide-electrolyte interface were monitored using the ex-situ
electrochemical impedance spectroscopy. At the same time, the
progress of electrolyte penetration in the oxide porous structure
was studied. The oxidic layer and the electrolyte penetration
are characterized by the elements of the equivalent circuit
model and Jonscher analysis that enables calculation of the
dielectric thickness of the oxide.
Linguaculture Volume 8, Number 2, 2017
Authors: Dimitriu Rodica
Published: May 2018

EDITOR-IN-CHIEF: Rodica Dimitriu EDITORIAL BOARD: Veronica Popescu Rodica Albu Odette Blumenfeld
Deconstruction, Walt Whitman, and the Purpose of Literary Education
Authors: Pokrivčák Anton
Published: May 2018

The article explores the purpose of literary theory, and, consequently, literary education at the beginning of the twenty-first century. It first discusses some of the ideas of Paul de Man for whom literary scholarship is challenged by the incompatibility between the nature of the object of literary theory and the methods used to analyse it. Then the author briefly traces some other ideas regarding the nature of literature and their reflection in establishing the purpose of literary education. A particular emphasis is paid to a re-evaluation of the universality of Walt Whitman´s message, as expressed in his “Song of Myself,” under the circumstances of contemporary ideological and cultural struggles.
Broadband Fabry–Pérot Resonator From Zerodur for Laser Stabilisation Below 1KHZ Linewidth With < 100 HZ/S Drift and Reduced Sensitivity to Vibrations
Authors: Bluss K. , Atvars A. , Brice I. , Alnis J.
Published: May 2018

Here we demonstrate the results of creating a two-mirror Fabry-Pérot resonator (FPR) that allows achieving the spectral width of a stabilised laser line below 1 kHz. It had low expansion Zerodur spacer and broadband high reflectance mirrors (99.85% in the range of 630 to 1140 nm). FPR was vertically mid-plane mounted for reduced sensitivity to vibrations and included in two shields inside a vacuum chamber to lower temperature fluctuations. Peltier element was used for temperature stabilisation at zero-expansion temperature. Pound-Drever-Hall (PDH) technique was applied. The signal from FPR was compared to ultra-stable signal (of about 1 Hz linewidth) to form a beat note signal. For the best performance, width of the beat note signal was below 1 kHz with the linear drift of about 23 Hz/s at 780 nm. The Allan deviation showed relative stability of the signal to be about 1 × 10-12.
Temperature Sensor Feasibility Study of Wireless Sensor Network Applications for Heating Efficiency Maintenance in High-Rise Apartment Buildings
Authors: Freliha B. , Kondratjevs K. , Kunicina N. , Zabasta A.
Published: May 2018

Cities are responsible for 60%-80% of the world’s energy use and for approximately the same percentage of greenhouse gas emissions. The existing multi-apartment buildings of multifamily housing sector are often energy inefficient, and the heating system does not ensure optimization of heat distribution of individual apartments. Heat distribution, heating system balancing, heat loss detection and calculation, individual heat energy accounting are difficult tasks to accomplish. This article deals with the temperature monitoring system designed to retrieve temperature differences necessary for overall building heat monitoring and individual apartment monitoring. The sensor testing case study process and its measurements are analysed.
Development of Mathematical Models for Detecting Micron Scale Volumetric Defects in Thin Film Coatings
Authors: Gaigals G. , Donerblics M. , Dreifogels G.
Published: May 2018

The focus of the present research is to investigate possibilities of volumetric defect detection in thin film coatings on glass substrates by means of high definition imaging with no complex optical systems, such as lenses, and to determine development and construction feasibility of a defectoscope employing the investigated methods. Numerical simulations were used to test the proposed methods. Three theoretical models providing various degrees of accuracy and feasibility were studied.
Joint Dimensioning of Outdoor Heterogeneous Radio Access Networks (HetNet) using Monte Carlo Simulation
Authors: Ratkóczy Péter , Mitcsenkov Attila
Published: May 2018

The experienced mobile traffic increase in the recent years made traffic capacity the bottleneck instead of the coverage constraints, calling for significantly higher density of the base stations. Heterogeneous radio access networks (HetNet) provide a possible solution to this problem, combining various wireless technologies. In this paper we investigated the joint dimensioning of the co-existent radio access networks, the relation between the required macro and small cell densities to meet a certain traffic demand, and compared the two main, competing technological solutions, namely small cells and Wi-Fi, suitable to complement an LTE (macrocell) network.
Merging diaries and GPS records: The method of data collection for spatio-temporal research
Authors: Šveda Martin , Madajová Michala
Published: May 2018

The results of a ‘proof-of-concept’ study that examined a new opportunity for using GPS technology in activity surveys are presented in this article. The aim is to demonstrate the method of collection and processing of individual time-space data via the dual records of a time-space diary and the GPS locator. The GPS technology here is not treated as a substitute for the traditional method of diaries; rather, the paper concentrates on the potential existing in a combination of these two techniques. The time-geographical approach and the corresponding methodology are used in order to assess the complexities of an individual’s everyday life, and to capture the spectrum of human activities in a data frame applicable to different analyses in behavioural, social and transportation research. This method not only improves the quality and robustness of spatio-temporal data, but also reduces under-reporting and the burdens on the respondents.
A universal meteorological method to identify potential risk of wind erosion on heavy-textured soils
Authors: Středová Hana , Spáčilová Bronislava , Podhrázská Jana , Chuchma Filip
Published: May 2018

The climate of Central Europe, mainly winter seasons with no snow cover at lower altitudes and a spring drought as well, might cause erosion events on heavy-textured soils. The aim of this paper is to define a universal method to identify the potential risk of wind erosion on heavy-textured soils. The categorization of potential wind erosion risk due to meteorological conditions is based on: (i) an evaluation of the number of freeze-thaw episodes forming bare soil surfaces during the cold period of year; and (ii), an evaluation of the number of days with wet soil surfaces during the cold period of year. In the period 2001–2012 (from November to March), episodes with temperature changes from positive to negative and vice versa (thaw-freeze and freeze-thaw cycles) and the effects of wet soil surfaces in connection with aggregate disintegration, are identified. The data are spatially interpolated by GIS tools for areas in the Czech Republic with heavy-textured soils. Blending critical categories is used to locate potential risks. The level of risk is divided into six classes. Those areas identified as potentially most vulnerable are the same localities where the highest number of erosive episodes on heavy-textured soils was documented.
Biomedical Waste Management
Authors: Shikoska Biljana , Dimova Cena , Schumanov Gjorgji , Vankovski Vlado
Published: May 2018

Medical waste is all waste material generated in health care facilities, such as hospitals, clinics, physician’s offices, dental practices, blood banks, and veterinary hospitals/ clinics, as well as medical research facilities and laboratories. Poor management of health care waste potentially exposes health care workers, waste handlers, patients and the community at large to infection, toxic effects and injuries, and risks polluting the environment. It is essential that all medical waste materials have to be segregated at the point of generation, appropriately treated and disposed of safety.
The Role of Standardized Echography in Preoperative Preparations of Patients with Senile Cataract
Authors: Ivanova Gordana , Gjosevska Dastevska Emilija
Published: May 2018

Introduction. The standardized echography is a non-invasive, simple, efficient and painless diagnostic method, which allows visualization and evaluation of posterior eye segment through non-transparent media, such as blurring lens or cataract. The aim of the study was to emphasize the role and importance of standardized echography in preoperative preparation of patients and evaluation of posterior eye segment in patients with senile cataracts.

Methods. During a 6 month-period, from 05.05.2015 to 11.05.2015, a total of 718 ultrasound examinations were made in patients with previously diagnosed senile cataracts at the University Clinic for Eye Diseases in Skopje, in the Echography cabinet. Examinations were made by using the apparatus Sonomed E-Z Scan-AB 5500+.

Results. Out of the total number of 718 patients with senile cataracts examined by echography-in 295 (24.30%) opacities in the vitreous body were diagnosed, in 128 (18.08%)-posterior vitreous detachment, in 8 (1.11%) synchysis scintillans, in 5 (0.70%) hemophthalmus and in 3(0.42%) detachment of the retina. A total of 302 (42.06%) patients were with normal echographic findings.

Conclusion. The results obtained indicate the necessity of preoperatively echographic examination in patients with senile mature and hypermature cataracts.
Mutation Analysis of the Common Deafness Genes in Patients with Nonsyndromic Hearing Loss in Republic of Macedonia
Authors: Stefanovska Emilija Sukarova , Bozhinovski Gjorgji , Momirovska Ana , Cakar Marina Davceva , Sukarova-Angelovska Elena , Plaseska-Karanfilska Dijana
Published: May 2018

Hearing impairment is the most common sensory disorder, which occurs in 1 of 1000 newborns. It is caused by heterogeneous conditions with more than a half due to genetic etiology. Although hundreds of genes are implicated in hearing process and have been found to be associated with nonsyndromic hearing loss, pathogenic variants in GJB2 gene have been considered as the main cause of deafness among nonsyndromic hearing loss (NSHL) population worldwide. Pathogenic variants in MT-RNR1 or mtDNA12SrRNA gene were also implicated predominantly in postlingual progresive deafness.

The aim of this study was to analyze the implication of GJB2 and MT-RNR1 genes in the molecular etiology of deafness among 130 NSHL patients in the Republic of Macedonia. The presence of the del (GJB6-D13S1830) was also analysed. We performed SSCP and/or sequence analysis of GJB2 and identified sequence variants in 62 out of 130 patients (47.7%); (51 homozygous or compound heterozygous and 11 with only one variant allele). We found 8 different allelic variants, the most prevalent being c.35delG (65.49%), and p.W24*(23.01%), followed by other less frequent alleles (p.V27I, p.V37I, p. P175T and cd. delE120 or delGAG at 360). In addition, two polymorphic substitutions in the GJB2 gene with no clinical significance (p.V153I and p.R127H) were detected. No del(GJB6-D13S1830) was found.

SNaPshot analysis was used to screen for the five most frequent allelic variants in the MT-RNR1 gene. Two MT-RNR1 mutations (A827G and T961G) were detected in three patients where only one GJB2 pathogenic variant was found. A new MT-RNR1 gene variant G1303A was also detected.

In conclusion, MT-RNR1 mutations were not a significant contributor to the etiology of deafness in Macedonia, although could be considered as a modifier gene affecting the expression of deafness in patients carrying one GJB2 variant. On the other hand, the high percenttage of GJB2 pathogenic variants identified among NSHL cases indicates the necessity of molecular newborn screening for the two most common GJB2 variants (c.35delG and p.W24*) in the Republic of Macedonia.
FLAG-IDA, Possible Breakthrough in Treatment of Refractory Acute Myeloid Leukemia in the Context of Hematopoietic Stem Cell Transplantation: Single Center Experience
Authors: Chadievski Lazar , Stavric Sonja Genadieva , Veljanovska Aleksandra Pivkova , Stojanoski Zlate , Miloska Dijana , Cevreska Lidija , Georgievski Borce
Published: May 2018

Introduction. Acute myeloid leukemia (AML) represents an entity well defined among the hematological malignnant diseases from diagnostic and therapeutic point of view. Still, big concern remains for those patients where the induction therapy fails. Classified in the group of refractory AML these patients are with poor prognosis. There are numerous attempts in providing the best surviving results by administration of appropriate therapy. Our center presents its experience in treating patients with refractory AML by administration of FLAG-Ida regimen, followed by hematopoietic stem cell transplanttation, autologous or allogeneic, depending on the availability of HLA matched sibling donor of hematopoietic stem cells.

Methods. In patients with refractory AML, administering FLAG-Ida chemotherapy we have achieved complete remission in 22 patients (47%). Average age of the treated group of patients was 36.6 years (17-53). All of them proceeded to high-dose chemotherapy and underwent hematopoietic stem cell transplantation (HSCT). We performed autologous HSCT in 13 patients, and allogeneic HSCT in 9 patients. Median time to HSCT was 6.6 months (4-10), and in most of the patients we used myeloablative conditioning (MAC).

Results. The disease-free survival in our group of patients is 74 months (22-148). The longest overall survival was 148 months and was registered in a patient with allogeneic sibling HSCT. We can conclude that FLAG-Ida regimen is an appropriate and suitable salvage chemotherapy protocol for patients with refractory AML especially when it is used in the context of preparation for HSCT.
Role and Clinical Significance of Il-33 in Patients with Asthma
Authors: Janeva Elena Jovanovska , Gjorchev Angelko , Kaeva Biserka , Breskovska Gorica , Goseva Zlatica , Zdraveska Marija , Dimitrievska Deska , Arsovski Zoran , Pejkovska Sava , Minov Jordan , Trajkov Dejan , Dimitrova Magdalena Genadieva , Zafirova Beti
Published: May 2018

Introduction. Asthma is a chronic inflammatory disease of the airways in which many cells play a role with secreting a variety of mediators responsible for the clinical manifestation of asthma. It is assumed that IL-33 is one of the earliest-released mediators and can orchestrate the immune cascade of the disease.

The aim of this study was to examine the role and clinical significance of IL-33 as a new and insufficiently explored mediator of inflammation in patients with uncontrolled moderate asthma.

Methods. The study included 87 patients with asthma. Serum IL-33 was measured in all patients by ELISA method. The obtained data were statistically analyzedusing the Kolmogorov-Smirnov and Shapiro-Wilk's test. Qualitative data were presented in absolute and relative numbers, and quantitative data were presented with measures of descriptive statistics. Statistically significant values were considered forp <0.05.

Results. Majority of included patients were female (75.86%). The average age of patientswas 42.3±15.9 years. The results of IL-33 in all patients were significantly increased compared to the reference value of IL-33 which is 0pg/ml. The average values of IL-33 ranged from 6.47±29.3 and they were insignificantly higher in the group with female patients compared to males (p=0.27), and insignificantly correlated with age (p=0.26).

Conclusion. Even though a limited number of studies haveexplored the IL-33, results have shown higher serum level of IL-33 in asthma patients compared to healthy people, emphasizing the factthat IL-33 is an attrac tive candidate for targeted therapy and prognosis inasthma patients.
Ml28133 -A Multicenter, Open-Label, Long-Term Extension Study of WA 19926 to Describe Safety During Treatment with Tocilizumab in Patients with Early, Moderate to Severe Rheumatoid Arthritis
Authors: Kafedziska Irena , Mishevska-Perchinkova Snezhana , Antova Dubravka , Nikolova Mimoza Kotevska , Stojanovska Anzhelika , Guchev Filip
Published: May 2018

Introduction. Biologic DMARDs (Disease Modifying Anti Rheumatic Drugs) have shown to be effective in the treatment of rheumatoid arthritis (RA) resistant to the use of synthetic DMARDs. The primary goal of this study wasto assess the long-term safety of the use of tocilizumab in patients with early rheumatoid arthritis, moderate to severe disease activity. The secondary goal was to assess the efficiency of tocilizumab in achieving and maintaining clinical remission of the disease.

Methods. ML28133 is a long-term, extended study of 13 patients with rheumatoid arthritis treated with tocilizumab. Two patients were male (15.4%), 11(84.61%) female. The average age of patients was 53.27+/−10.68. Patients received 8mg/kg tocilizumab i.v. every four weeks, 104 weeks overall. Safety was assessed following side effects, blood tests, physical examination and vital signs. Efficiency was assessed by achieving and maintaining clinical remission according to DAS28 (Disease Activity Score 28), global assessment of disease activity, VAS score and HAQ-DI (Health Activity Score) questionnaire.

Results. Incidence of side effects was 76.92%. Infections were of special interest and were most common (15.3%). Four patients had serious adverse events, three of which associated with tocilizumab, and therapy was stopped. In 11 (84.6%) of the 13 treated patients clinical remission was achieved at times. At the end of the study, 8 out of 9 patients were in remission.

Conclusion. The results have shown significant therapeutic effect of tocilizumab even in the most severe forms of the disease, which gives hope for its use as a monotherapy.
Case Report of Feminizing Genital Reconstruction in a Female with Congenital Adrenal Hyperplasia
Authors: Noveski Lazo , Ginoski Vladimir , Dzonov Boro , Mircevska Elizabeta Zogovska
Published: May 2018

Introduction. Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders of adrenal steroidogenesis. In approximately 90-95% of the CAH cases, it is a deficiency of the enzyme steroid 21-hydroxylase. The degree of enzyme insufficiency determines the severity of the disease. In the simple virilizing type of CAH dominant symptoms are virilization in girls and precocious puberty in boys. Virilizing type of CAH is the most common etiology of ambiguous genitalia in women. There are several options for surgical reconstruction of such anomalies, which must always be optimized to the patient’s anatomy, to achieve a good esthetic and functional result.

Detailed presentation of the case. The paper presents the case of a 36-year old woman with delayed pediatric diagnosis of simple virilizing type of CAH, due to deficiency of 21-hydroxylase, pronounced phenotypic virilization, clitoromegaly, hyperpigmentation of the external genitalia, vaginal hypoplasia and existence of low confluence of the urethra with the vagina in so called low type of urogenital sinus andbilateral micromastia, also called mammary hypoplasia. The patient underwent augmention mammoplasty, clitoroplasty, reduction of clitoral hood and proximal labioplasty.

Discussion. CAH is a continuum of disorders, affecting patients throughout the life. Feminizing genitoplasty includes three parts: clitoroplasty, labioplasty and vaginoplasty. Clitorectomy in modern times is unacceptable option.

Conclusion. Surgical management and reconstruction in women with simple virilizing type CAH and ambiguous genitalia remains still controversial and emotionally laden area in reconstructive surgical activity and requires a team approach.
High temperature thermoelectric properties of PbTe prepared by high pressure method
Authors: Fan Haotian , Su Taichao , Li Hongtao , Zheng Youjin , Li Shangsheng , Hu Meihua , Ma Hongan , Jia Xiaopeng
Published: May 2018

Highly dispersed olive-like NiS particles were synthesized in a liquid-liquid biphasic system at room temperature, where nickel xanthate in organic solvents (toluene and benzene) and sodium sulfide in water solution were used as nickel and sulfide sources, respectively. NiS particles were formed at the stabilized phase interface. The structures, chemical composition and optical characteristics of the products were investigated by transmission electron microscopy, scanning electron microscopy, X-ray photoelectron spectroscopy and ultraviolet-visible spectroscopy. The organic solvents obviously influenced the morphology of the NiS particles. The olive-like NiS with smooth surface and sharp ends was obtained at benzene/water interface, while spindle-like NiS particles with rough surface and circle ends were formed when using toluene as a solvent. Analogously, chainlike Bi2S3 nanowires were produced at chloroform/water interface. The effect of the experiment parameters including reaction time, solvent and concentration of reactants on the size and morphology of the products was discussed in detail and a possible formation mechanism was suggested.
Reactive bay functionalized perylene monoimide-polyhedral oligomeric silsesquioxane organic electronic dye
Authors: Wangatia Lodrick Makokha , Sun Bin , Zeng Ting , Zhu Meifang
Published: May 2018

Aggregation-induced quenching is particularly detrimental in perylene diimides, which are characterized by a near-unity fluorescence quantum yield in solution but are far less emissive in the solid state. Previously, perylene diimide has been improved by linking it to the inorganic cage of polyhedral oligomeric silsesquioxanes. As a further study on perylene diimidepolyhedral oligomeric silsesquioxanes, we report on a double functionalized molecular structure, which can be used for substitution at the bay area and as a side group in other materials. Typical solution absorption and emission features of the perylene diimide fragment have been observed in this new reactive perylene diimide-polyhedral oligomeric silsesquioxane. Moreover, reduced stacking during aggregation and spherical particles exhibiting solid fluorescence have been obtained. Organic semiconducting material with enhanced solid state photophysical properties, like solid fluorescence is a subject of great interest owing to its possible high-tech applications in optoelectronic devices.
Effect of fabrication technique on the crystalline phase and electrical properties of PVDF films
Authors: Mahato P. K. , Seal A. , Garain S. , Sen S.
Published: May 2018

The effect of different fabrication techniques on the formation of electroactive β-phase polyvinylidene fluoride (PVDF) has been investigated. Films with varying concentration of PVDF and solvent - dimethyl formamide (DMF) were synthesized by tape casting and solvent casting techniques. The piezoelectric β-phase as well as non polar β-phase were observed for both the tape cast and solvent cast films from X-ray diffraction (XRD) micrographs and Fourier transform infra-red spectroscopy (FT-IR) spectra. A maximum percentage (80 %) of β-phase was obtained from FT-IR analysis for a solvent cast PVDF film. The surface morphology of the PVDF films was analyzed by FESEM imaging. The dielectric properties as a function of temperature and frequency and the ferroelectric hysteresis loop as a function of voltage were measured. An enhancement in the value of the dielectric constant and polarization was obtained in solvent cast films.
An Analytical Model for Prediction of Magnetic Flux Leakage from Surface Defects in Ferromagnetic Tubes
Authors: Suresh V. , Abudhahir A.
Published: May 2018

In this paper, an analytical model is proposed to predict magnetic flux leakage (MFL) signals from the surface defects in ferromagnetic tubes. The analytical expression consists of elliptic integrals of first kind based on the magnetic dipole model. The radial (Bz) component of leakage fields is computed from the cylindrical holes in ferromagnetic tubes. The effectiveness of the model has been studied by analyzing MFL signals as a function of the defect parameters and lift-off. The model predicted results are verified with experimental results and a good agreement is observed between the analytical and the experimental results. This analytical expression could be used for quick prediction of MFL signals and also input data for defect reconstructions in inverse MFL problem.
Determination of Relationship between Dielectric Properties, Compressive Strength, and Age of Concrete with Rice Husk Ash Using Planar Coaxial Probe
Authors: Piladaeng Nawarat , Angkawisittpan Niwat , Homwuttiwong Sahalaph
Published: May 2018

This paper deals with an investigation of the dielectric properties of concretes that includes rice husk ash using a planar coaxial probe. The planar coaxial probe has a planar structure with a microstrip and coaxial features. The measurement was performed over the frequency range of 0.5-3.5 GHz, and concrete specimens with different percentages of rice husk ash were tested. The results indicated that the dielectric constant of the concretes was inversely proportional to the frequency, while the conductivity was proportional to the frequency. The dielectric constant decreased with the increasing age of the concrete at the frequency of 1 GHz. The conductivity of the concrete decreased with the increasing age of the concrete at the frequency of 3.2 GHz. In addition, the dielectric constant and the conductivity decreased when the compressive strength increased. It was also shown that the obtained dielectric properties of the concrete could be used to investigate the relationship between the compressive strength and age of the concrete. Moreover, there is an opportunity to apply the proposed probe to determine the dielectric properties of other materials.
The Effect of the Combination of Different Methods of Stock Analysis on Portfolio Performance
Authors: Trančar Vesna
Published: May 2018

The literature that examines the stock analysis is often faced with the same questions: Which stock analyses should be chosen and which indicators of individual stock analyses give the best information on whether a particular stock should be included in the portfolio? How many indicators and which combination of indicators should you choose to forecast future stock prices as accurately as possible? Can investors use stock analyses to create such a portfolio to meet the investment expectations? The main purpose of this article is to use theoretical methodology to determine whether the use of a combination of indicators from different stock analyses has a positive impact on the profitability of the portfolio.
Thermal-hydraulic analysis of LTS cables for the DEMO TF coil using simplified models
Authors: Lewandowska Monika , Dembkowska Aleksandra
Published: May 2018

The conceptual design activities for the DEMOnstration reactor (DEMO) – the prototype fusion power plant – are conducted in Europe by the EUROfusion Consortium. In 2015, three design concepts of the DEMO toroidal field (TF) coil were proposed by Swiss Plasma Center (EPFL-SPC, PSI Villigen), Italian National Agency for New Technologies (ENEA Frascati), and Atomic Energy and Alternative Energies Commission (CEA Cadarache). The proposed conductor designs were subjected to complete mechanical, electromagnetic, and thermal-hydraulic analyses. The present study is focused on the thermal-hydraulic analysis of the candidate conductor designs using simplified models. It includes (a) hydraulic analysis, (b) heat removal analysis, and (c) assessment of the maximum temperature and the maximum pressure in each conductor during quench. The performed analysis, aimed at verification whether the proposed design concepts fulfil the established acceptance criteria, provides the information for further improvements of the coil and conductors design.
The Sports Participation: From Research to Sports Policy
Authors: Puig Núria
Published: May 2018

The aims of this paper are the following: 1. To provide an overview of the fundamental aspects to be taken into account when carrying out and interpreting sports participation surveys; 2. To put forward an explanation of sports behavior; and 3. To suggest how these results may be used in intervention programs. Having gone over the literature in this field, I shall go on to address the following points: the definition of sports; trend analysis or the illusion of transparency; analysis of inequalities; identifying difference and individualization; and examining typologies to better understand each social group. I shall conclude with suggestions for sports policies.
The Youth Soccer Coaches’ Visions and Thoughts of Leader Support
Authors: Hertting Krister , Kostenius Catrine
Published: May 2018

The Objectives: The European Commission has highlighted the use of sports as an important venue for engaging citizens in health-enhancing activities, physical activity, volunteerism and active citizenship. Coaching is a central component of sports for children and youth, but there is little research on the promotion of sports coaches’ health. In the light of this gap, the aim of this paper was to elucidate youth soccer coaches’ visions and thoughts regarding leadership support from clubs and soccer associations.

Design and method: The study was based on an online questionnaire conducted with Swedish soccer coaches who coached children and young people between 6 and 18 years of age. In total, 1514 coaches received the online questionnaire via email and 764 coaches (50.5% of the sample) answered. Three hundred and seventy-five coaches answered the open question: ‘How would you describe the support you, as a coach, would like to receive from clubs and associations?’ Responses were analysed using method.

Results: Four main themes emerged from the analysis: financial and other resources support, recognition of contribution, sense of belonging to a value-based association and positive coach development.

Conclusion: We discuss the factors that support soccer coaches and how these can serve as health-promoting supports for coaches working with children and youth.
Assessment of the Influence of Cervical Spine Traction on the Change of Heart Hemodynamic Parameters
Authors: Myśliwiec Andrzej , Saulicz Edward , Kuszewski Michał , Klapuch Michał
Published: May 2018

Background: The vast majority of pain dysfunctions of the cervical spine is underlain by prolonged overload and one effective therapy is traction. The aim of this study is to assess the influence of cervical spine traction on changes in heart rate and arterial blood pressure in people with arterial hypertension and normotension.

Material/Methods: The study involved a total of 168 patients, in whom chronic cervical spine pain syndrome of low intensity, with no radiation of symptoms and with no significant functional limitations occurred. The subjects were intentionally allocated into a group with arterial hypertension and a group with normotension.

Results: The analysis of the obtained results showed that cervical spine traction does not strain the cardiovascular system. In the group of subjects with arterial hypertension, a linear value reduction of all the heart hemodynamic parameters measured in the successive trials was observed. The most significant difference between the initial and final test was observed in patients, in whom the traction procedure was only simulated.

Conclusions: Cervical spine traction performed according to D. Saunders’ method does not constitute any threat to patients with arterial hypertension.
Results of the commercialisation of scientific research in the light of experience gained at the Nicolaus Copernicus University Centre for Technology Transfer
Authors: Matlakiewicz Paweł , Matuszak Piotr , Grodzicki Grzegorz
Published: May 2018

The statutory mission of a university, in addition to the creation of scientific knowledge and education, lies in the cooperation with the economic sector through the transfer of knowledge and technology. The effectiveness of this process directly affects the affluence of any given State’s economy. Owing to the new amendments to the Act on Higher Education, many barriers that hinder commercialisation of knowledge in Poland have been brought down. Nicolaus Copernicus University in Toruń sets an excellent example in this respect having established a special purpose entity, which has already managed to set up thirteen spin-off companies in just 18 months.
How Czech supervisors engage in the supervisory process on sexual attraction and strategies used to supervise sexual attraction in the work of supervisees
Authors: Kolařík Marek , Lečbych Martin , Luca Maria , Markovic Desa , Fülepová Martina
Published: May 2018

Our study investigated how Czech supervisors understand, engage with and supervise therapists in handling sexual attraction. Qualitative interviews were carried out with 13 volunteers in the Czech Republic. Transcripts were analysed using constructivist grounded theory (GT). Findings show that in reflecting on their experience as supervisors, participants stepped into their experience as therapists first. Data shows various factors mediating and influencing the supervision process: the historical and political impact of sexual tabooism and sexual attraction in training and practice; supervisors’ personal experience of sexual attraction provoked shame; gender and trust impact on which supervisor to choose; male and female differences in supervisory needs; and a clear contract facilitates disclosure of sexual attraction.
Natural islands and habitat islands as refuges of vegetation cover and wild bees. The case of the Lednica Landscape Park in western Poland
Authors: Banaszak Józef , Ratyńska Halina
Published: May 2018

The study has contributed to the identification of the apifauna of central Wielkopolska. The study identified 161 bee species, accounting for 34.2% of the Polish bee fauna. The highest contribution (28.7% of the fauna) comes from four species, namely Andrena haemorrhoa, A. helvola, Evylaeus calceatus and Osmia rufa, while Bombus terrestris and Evylaeus pauxillus are two subdominants. The assemblages of Apiformes in the study area are characterised by a significant contribution of spring-associated species, which is probably an effect of the presence of numerous willow thickets offering abundant host plants (mainly Salix sp. div.). Both the islands and the surroundings of the lake have a unique species composition, and there are differences in the proportions of the individual dominant species. The overall abundance of bees varies greatly, with mean seasonal density figures on Ostrów Lednicki Island being more than twice as high as that on the mainland grassland, with a distinct predominance of bumblebees. The exceptional richness of Apiformes, including bumblebees, on Ostrów Lednicki should be regarded as the basis for treating this island as a life refuge for bumblebees and including it and its environs in the list of sites of Community importance (SCI). A simultaneous study of the vegetation cover contributed significant data on the vascular plant flora and plant communities of the Lednica Landscape Park. For example, it was the first such investigation of Mewia Island. The study revealed the importance of marginal habitats (natural islands and habitat islands) for the preservation of protected and endangered plant species and plant communities receding from an agricultural landscape.
The first record of the yew gall midge Taxomyia taxi (Inchbald, 1861) (Diptera: Cecidomyiidae) in the Polish Carpathians, southern Poland
Authors: Bodziarczyk Jan , Widlak Marcin , Siwy Malwina
Published: May 2018

The yew gall midge Taxomyia taxi has been found for the first time in the Polish Carpathians. The site lies in the “Yews in Mogilno” (“Cisy w Mogilnie”) nature reserve in the western part of the Beskid Niski (Low Beskid) Mountains. The species occurs over an area of ca. 37 ha, mostly in the northern, lowest-lying parts of the reserve. 19.4% of the inspected specimens of the European yew were found to exhibit signs of feeding by gall midges. Most of the infested yews (86.7%) were barren, 8.2% were females and 5.1% males. The yew gall midges displayed no clear preferences in relation to the health status of the host plants, although yews with a healthier photosynthetic apparatus were selected more often.