bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photo- and electroluminescence of oxide-nitride-oxide-silicon structures for silicon-based optoelectronics
Authors: Romanov I. A. , Vlasukova L. A. , Komarov F. F. , Parkhomenko I. N. , Kovalchuk N. S. , Mohovikov M. A. , Mudryi A. V. , Milchanin O. V. 
Published: November 2018

Oxide-nitride-oxide-silicon (SiO2/SiN0.9/SiO2/Si) structures have been fabricated by chemical vapor deposition. The elemental composition and light emission properties of “SiO2/SiN0.9/SiO2/Si” structures have been studied using Rutherford backscattering spectroscopy (RBS), photo- and electroluminescence (Pl, El). The RBS measurements has shown the presence of an intermediate silicon oxynitride layers at the SiO2–SiN0.9 interfaces.It has been shown that the photoluminescence of the SiO2/SiN0.9/SiO2/Si structure is due to the emission of a SiN0.9 layer, and the electroluminescence is attributed to the emission of silicon oxide and oxynitride layers. A broad intense band with a maximum at 1.9 eV dominates the Pl spectrum. This band attributed to the radiative recombination of excited carriers between the band tail states of the SiN0.9 layer. The origin of the less intense Pl band at 2.8 eV is associated with the presence of nitrogen defects in the silicon nitride.El was excited in the electrolyte-dielectric-semiconductor system. The electric field strength in the SiO2 layers reached 7–8 MV/cm and exceeded this parameter in nitride layer nearly four times. The electrons accelerating in electric field of 7–8 MV/cm could heat up to energies more than 5 eV. It is sufficient for the excitation of luminescence centres in the silicon oxide and oxynitride layers. The SiO2/SiN0.9/SiO2/Si composition El bands with quantum energies of 1.9 and 2.3 eV are related to the presence of silanol groups (Si–OH) and three-coordinated silicon atoms (≡Si•) in the silicon oxide layers. The El band with an energy of 2.7 eV is attributed to the radiative relaxation of silylene (O2=Si:) centers in the silicon oxynitride regions. It is observed the least reduction of this band intensity under the influence of strong electric fields after a charge flow of 1–3 C/cm2.
Structure and optical properties of diamond-like carbon coatings
Authors: Chekan N. M. , Akula I. P. , Shpak E. P. , Navitskii A. N. 
Published: November 2018

Using a hybrid method of cathodic arc (PVD) and chemical (CVD) deposition from the gas phase, a new type of coatings containing high amount of sp3 bonds of carbon, capable of absorbing effectively light has been developed.This thin film material is a promised one for optical devices operating in open space environment as antireflective coating for photoreceiver bodies. The hybrid method permits to obtain effective light absorbing coatings having excellent mechanical and tribological properties and is able to sustain temperature cycling in a range from plus 150 to minus 100 oC. The optical characteristics of DLC coatings were studied depending on the content of sp2bound content. The combined physical and chemical deposition of DLC coatings allows to achieve a sufficiently high light absorption (a~10 5 cm–1) and low reflection with a relatively small coating thickness about 1 mm. It has been established that the antireflective properties of such coatings depend on the conditions for their preparation, first of all on hydrocarbon gas pressure
Investigation of the regularities of vortical flows in a cyclone-bed chamber
Authors: Pitsukha E. A. , Buchilko E. K. , Teplitskii Yu. S. 
Published: November 2018

Experimental investigation of the radial distributions of tangential and longitudinal velocities, total and static pressures in the vortex zone of a cyclone-bed chamber of diameter 0.21 m has been carried out. The experiments were carried out at various regime parameters (fraction of bottom blast, total air volume flow) and geometric parameters (diameter and shape of the outlet) of the chamber, and also in the presence of a fixed or fluidized bed of granular material. The influence of nonisotherm of bottom and tangential blast on the distribution pattern of velocity and pressure in the vortex zone of the cyclone-bed chamber is investigated. There was determined the influence of bottom blast temperature on the longitudinal velocity of air in the central part of the vortex zone chamber. It is shown that the diameter of the outlet has a significant effect on the pressure in the chamber. The longitudinal velocity in the central part of the chamber is practically independent of the shape of the outlet. The presence of the fluidized bed has an effect on the hydrodynamics of the cyclone-bed chamber vortex zone. In the presence of the fluidized bed there has been a violation of the self-similarity of hydrodynamic dimensionless parameters distribution in the vortex zone. The obtained experimental data were summarized within the framework of the similarity theory with the use of a dimensionless quantity characterizing the hydrodynamics of an inhomogeneous fluidized bed – the Froude number (Fr). The use of the Froude number makes it possible to take into account the effect of the fluidized bed hydrodynamics on the features of air velocity and pressure distributions in the vortex zone, and also takes into account the influence of such an important factor as the fraction of bottom blast.
Improvement of technology of manufacturing and control of quality of mirrors-reflectors from aluminium alloy
Authors: Sharonov G. V. , Gusakov G. A. , Zharin A. L. , Tyavlovskii A. K. , Mukhurov N. I. 
Published: November 2018

At present, the technology of diamond blade whetting with nano-sized roughness is widely used at the manufaсturing of metal-optical products, first of all, mirror-reflectors for “transportation” of powerful laser energy flows. Optimum material for mirror-reflectors is an aluminum alloy AMg2, which surface purity, is affected by the quality of preliminary mechanical heat treatment during superfinishing treatment by diamond whetting.Preliminary machining of the surface with a carbide cutter and finishing with a diamond cutter (with a radius of curvature of the blade less than 0.05 μm) were performed on a precision lathe of the MK 6501 model with a vertical spindle position on an air bearing. Thermal treatment was carried out in the laboratory electric furnace SNOL 58/350. Various modes of preliminary heat treatment, machining with a carbide cutter and finishing with a diamond cutter of substrates (20×20×7 mm3) were tested. The surface state analysis was carried out using the PMT-3 microhardness tester, the SolverPro P47 atomic-force microscope (AFM), and the experimental probe-electrometry device. The control of the electrophysical parameters of the surface was carried out by recording the distribution of the electron work function (RWF) by the contact potential difference with the processing by the microprocessor measuring transducer of electrostatic potentials. The recorded changes in the RWF characterize the physic-chemical and mechanical parameters of the surface of mirrors and indicate the presence of a different type and nature of defects.Modified preliminary mechanical-thermal treatment allowed to improve the cleanliness of surface treatment of substrates. Finishing nanoscale diamond blade processing, including the complete removal of the surface layer that was disturbed by previous operations, bring to the greatest possible improvement in the quality of the surface in terms of the uniformity of the distribution of its electrophysical properties. As a result, according to the values and changes of the RWF, achievement of the specified performance characteristics of the product surface was monitored in order to optimize the technological processing modes in accordance with the functional designations of the devices.The methods for increasing the efficiency of nanoscale diamond blade processing and performing researches of the electrophysical properties of the surface to control defects in the manufacture of metal reflector mirrors with high reflectivity and radiation strength for operation under extreme conditions.
Trust discourse in existential philosophy
Authors: Kozhemiakina O. N. 
Published: November 2018

The conceptual analysis of the problematization of the crisis of trust in the context of existential philosophy is performed in the article, paying special attention to the specificity of the ambivalent interpretation of the ontological and phenomenological levels of trust as the value basis for social interaction. Addressing the works of K. Jaspers, M. Buber, O. F. Bollnov, N. Abbagnano, the ways of overcoming the crisis bases of trust and the conditions of the “possibility of possibilities” of trust as a positive existential of responsible coexistence are analyzed. The conceptualization of trust as an existential self-determination in the horizons of reliability of world and readiness for vulnerability is presented.An existential analytics of the phenomenological level of trust in the interpretation of strategies of critical optimism and suspicion practices is proposed, which allowed us to consider the constructive and destructive effects of trust in terms of meaningful problems of choice, fear, anxiety, concern, freedom, responsibility in the “trust-to-the-world” and “trust-to-Other” horizons, conceptualizing internal and external resources of basic expectations of reliability, security, optimistic openness and pulsating humanity.
Institute of History of the National Academy of Sciences of Belarus: Achievements and Prospects
Authors: Danilovich V. V. , Lakiza V. L. 
Published: November 2018

The article presents the major accomplishments of the Institute of History of the National Academy of Sciences of Belarus in recent years – the leading scientific organization in the field of fundamental and applied research on national and universal history, archaeology and anthropology, including organization and implementation of activities to study and preserve the historical, cultural and archaeological heritage of the country, practical application and popularization.In the year of the 90th anniversary of the National Academy of Sciences of Belarus the Institute incorporates 5 centers: the Center of Archaeology and Ancient History of Belarus (including departments of archaeology of primitive society, archaeology of the Middle Ages and Modern times, the department of preservation and using of archaeological heritage, the department of history of Belarus in the Middle Ages and early Modern times); the Center of Modern and Contemporary History of Belarus (including departments of history of Belarus in modern times, the military history of Belarus, the department of the newest history of Belarus); the Center of History and Anthropology Related Sciences (including departments of genealogy, heraldry and numismatics, the department of source studies and archeography, the departments of historiography and methods of historical research, anthropology); the Center of General History and International Relations; the Center for History of Geopolitics.The Institute has an Archaeological Scientific and Museum Exposition, the Central Scientific Archive of NAS of Belarus (including the only one in the country Fund of archaeological research documents) and the International School of Historical and Archaeological Research.The article focuses on the achievements of scientists in the framework of fulfilling the tasks of the subprogram “History and Culture” of the state research program “Economics and Humanitarian Development of the Belarusian Society” for 2016– 2020, as well as the results that were included in the TOP 10 achievements of the National Academy of Sciences of Belarus, important publications, scientific and practical events, prospects for the development of scientific research.
POPULASI FITOPLANKTON SKELETONEMA DI ESTUARIA BANYUASIN, SUMATERA SELATAN
Authors: Aryawati Riris , Ulqodry T. Zia , Surbakti Heron , Ningsih Ellis N. 
Published: November 2018

Fitoplankton di laut mempunyai peranan penting sebagai pembentuk dasar dari rantai makanan (food-chain) dan bertanggung jawab dalam produksi primer (primary production). Kelimpahan dan jumlah jenis fitoplankton secara tidak langsung akan mempengaruhi tingkat kesuburan suatu perairan. Penelitian ini bertujuan untuk mengetahui keberadaan fitoplankton ditinjau dari kelimpahan, indeks keragaman, indeks keseragaman, dan indeks dominansi di estuaria Banyuasin, Sumatera Selatan. Penelitian dilakukan pada bulan September 2017 di sebelas stasiun. Contoh fitoplankton diambil di permukaan perairan dengan menggunakan jaring plankton yang berbentuk kerucut dengan diameter 30 cm, panjang 100 cm dan ukuran mata jaring 30 μm. Hasil penelitian menemukan 17 marga fitoplankton dari kelas Bacillariophyceae, dan terdapat ledakan populasi dari marga Skeletonema, dengan komposisi sebesar 98,71%. Nilai indeks keragaman (H’), indeks keseragaman (E) dan indeks dominansi (D) memperlihatkan adanya kondisi struktur komunitas fitoplankton yang tidak stabil. Nilai indeks keragaman pada penelitian ini berkisar antara 0,02-0,87 yang berarti komunitas dengan keanekaragaman yang rendah, nilai keseragaman berkisar antara 0,01-0,25 yang berarti komunitas dengan keseragaman tidak merata dan nilai dominansi berkisar antara 0,67-0,99 yang berarti terjadi dominansi jenis fitoplankton.
Türkiye’de Siyasal Parti Kadın Kollarının Sosyal Medya Kullanım Pratiklerinin Toplumsal Cinsiyet Yaklaşımı Bağlamında Analizi
Authors: ÖĞÜT YILDIRIM Pelin , ARDIÇ ÇOBANER Aslıhan 
Published: November 2018

Bu çalışmada sosyal medya
ortamlarından biri olan Twitter’ın Türkiye’de siyasal partilerin kadın kolları
ve kadın kolları başkanları tarafından kullanımı toplumsal cinsiyet yaklaşımı
bağlamında incelenmektedir. Çalışmada kadının toplumsal yaşamın her alanında
görünür olma adına verdiği mücadelede önemli bir mevzi olma ve kadınlara
yönelik politik söyleme etki etme potansiyeli olan kadın kollarının yeni
medyanın olanaklarını hangi amaçlarla ve ne şekilde kullandığı sorularına yanıt
aranmıştır. Bu doğrultuda çalışmanın ilk
aşamasında siyasal partilerin kurumsal kadın kollarının ve bu kolların
başkanlarının resmi hesaplarından 1-31 Mart 2018 tarihleri arasında yapılan
gönderiler/paylaşımlar içerik çözümlemesi yöntemiyle incelenmiştir. İkinci
aşamada ise 8 Mart Dünya Kadınlar Günü kapsamında paylaşılan gönderiler amaçlı
örneklem yoluyla tespit edilerek söylem çözümlemesine tabi tutulmuştur.
Bulgular kadın kollarının sosyal medyayı öncelikle kullanıcıları bağlı
bulundukları parti liderinin, partinin ve kendi örgütlerinin etkinliklerinden
haberdar etme ve icraatları hakkında bilgilendirme amacıyla kullandıklarını
ortaya koymuştur. Söylem çözümlemesi ise kadın kollarının bağlı bulundukları
partinin kadına yönelik bakış açısının dışına çıkamadığını göstermektedir.
Validation of Attention Deficit Hyperactivity Disorder Diagnostic Scale for Children
Authors: Devkota Narmada , Subba Shishir , Devkota Janardan , Regmee Jaya , Pokhrel Deepika 
Published: November 2018

Background: There is no valid Attention Deficit Hyperactivity Disorder diagnostic tool to fit Nepalese culture and language till date. Current study is intended to develop and validate the Attention Deficit Hyperactivity Disorder scale for children in Nepal.Methods: Mixed method study was conducted with 840 samples (i.e. children with Attention Deficit Hyperactivity Disorder =356, Anxiety =128 and General Population=356).Items generation, scale development andscale evaluation were the three consecutive steps followed to develop and validate the scale.Children with Attention Deficit Hyperactivity Disorder (already met the Diagnostic and statistical Manual-5 criteria) were further assessed by KiddieSchedule for Affective disorders and Schizophrenia (K-SADS-PL), Child and Adolescent Symptoms Inventory (CASI5) to confirm the diagnosis and psychometric validation. Pilot studies were done for items clarity. Each data obtained from three comparison groups (Attention Deficit Hyperactivity Disorder , Anxiety and General Population) were included for standardization process where tests of dimensionality, reliability, validity,calculating norms (cut off) were doneas scale evaluation process.Results: The final version of the scale had 21 items. Three sub-scales (Inattention, Impulsivity and Hyperactivity) were identified by using Principal Axis Factor Analysis.All factors showed strong statistically significant convergent validity and Discriminant validity Cronbach’s alpha of each item is ≥ 0.91.As total score criteria, 38.5 is considered as the best cut-off point for this scale.Conclusions: By using systematic process, a valid and reliable Attention Deficit Hyperactivity Disorder diagnostic scale is being developed in Nepalese culture and language.
Fatigue Experience and Coping Strategies among Cancer Patients Receiving Chemotherapy
Authors: Dahal Anika , Meheta Raj Kumar 
Published: November 2018

Background: Cancer is considered one of the foremost common causes of death. Fatigue is among the distressing symptoms for cancer patients receiving chemotherapy. Adequate coping is essential for individual to deal with the effects of cancer related treatment. The objective of the study was to find out the fatigue experience and coping strategies among cancer patients receiving chemotherapy.Methods: A descriptive, cross-sectional research design was used for the study. The samples was taken from day care and medical oncology ward of BP Koirala Memorial Cancer Hospital, Bharatpur. A total of 120 cancer patients receiving chemotherapy of 18 years and above were selected by using non probability consecutive sampling technique. Data was collected by using standard tool, Fatigue Symptom Inventory and Brief Cope. Data analysis was done by descriptive and inferential statistics.Results: The study revealed that 82.5% of respondents had experienced fatigue and 50.8% respondents had used adequate coping strategies where “self distraction”(2.76±1.02) was the most used coping strategy by the respondents. Fatigue experience and coping strategies had negative correlation (r=-0.490, p=<0.001).Conclusions: Majority of the respondents had experienced fatigue, and half of the respondents used adequate coping strategies. The different methods of coping strategies for fatigue and chemotherapy related effects should be expanded as per the best available evidence to lower fatigue and other adverse effects.
Effect of an Educational Intervention on Knowledge and Perception Regarding Rational Medicine Use and Self-medication
Authors: Jha Nisha , Ravi Shankar Pathiyil , Anurag Marasini 
Published: November 2018

Background: Rational use of medicines is important for safe and cost-effective pharmacotherapy. However, nearly half of the medicines available in the market may be used irrationally. The present study assessed the perceptions and knowledge about rational medicine use and responsible self -medication among participants before and after an educational intervention at KIST Medical College, Lalitpur.Methods: An educational module was conducted among healthcare professionals, media personnel and female community health volunteers. The questionnaire was administered before and immediately after the module. The areas addressed were rational medicine use, ethical prescribing, rational drug use situation in Nepal, pharmaceutical promotion, rational self-medication, safe use of antibiotics, and drug use problems in Nepal.Results: Among healthcare professionals, the rational drug use situation in Nepal and the total score significantly increased post-intervention (p<0.05). Among media personnel the mean scores increased significantly in pharmaceutical promotion and drug use problems in Nepal areas but there was a significant decrease in safe use of antibiotics. The pre-intervention pharmaceutical promotion score was significantly higher among healthcare professionals compared to media personnel while the rational self-medication scores were highest among female community health volunteers, safe use of antibiotics scores were highest among the media personnel. Post-intervention the mean pharmaceutical promotion scores was highest among healthcare professionals, rational self-medication scores among female community health volunteers, safe use of antibiotics, drug use problems in Nepal and total scores were highest among the media personnel. Conclusions: There were differences in the mean pre-intervention scores among different subgroups. A single session may not be enough to bring about significant changes in knowledge and perception. The retention of knowledge could be measured in future studies.
The Earth angle moment balance, low-frequency atmospheric processes and radiowaveguides: ii. application of an advanced non-stationary theory for different forms of atmosphere circulation
Authors: Glushkov A.V. , Svinarenko A.А. , Ambrosov S.V. , Bunyakova Yu.Ya. , Buyadzhi V.V. , Mansarliysky V.F. 
Published: November 2018

In the paper we present the results of application of a new advanced non-stationary theory of global mechanisms in atmospheric low-frequency processes, the balance of the angular momentum of the Earth, teleconnection effects and atmospheric radio waveguides, for the Pacific ocean region for different forms of the atmosphere circulation. The theory is realized and implemented into Microsystem Technology "GeoMath" and focused on the discovery and testing of new predictors for long-term and very long-forecasts of low-frequency atmospheric processes. The PC experiments have demonstrated an effectiveness of a new advanced theory in application to modeling balance of angular momentum, the atmospheric moisture turnover in relation to the genesis of tropospheric radio waveguides and succession processes of atmospheric circulation forms (teleconnection, front-genesis) in order to develop new practical sensors in long-term forecasting and modeling of low-frequency atmospheric processes. It is determined a link of tropospheric waveguide with atmospheric moisture circulation and, accordingly, with the shape of the atmospheric circulation over the position of the front sections of (atmospheric fronts as the main drives moisture). Atmospheric moisture cycle is linked with such typical low-frequency process as the angular momentum balance; the latter accounts violation of the atmosphere rotating balance with the Earth.
Evaluation of the production process of potato in a changing climate in the Eastern and Western forest-steppe
Authors: Svyderska S.M. 
Published: November 2018

An important element of climate change is to assess changes in agro-climatic growing conditions of crops and the impact of these changes on their performance. Agriculture is the most vulnerable sector of Ukraine's economy to fluctuations and climate change. Given the inertial nature of agriculture and the dependence of the efficiency on the weather, now need to make timely and adequate solutions to complex problems caused by climate change. Due to the expected increase in air temperature of the Northern Hemisphere food security Ukraine will largely depend on how effectively adapting agriculture to future climate change. This includes advance assessment of the impact of the expected climate change on agro-climatic conditions for growing crops. Potatoes - perennial, herbaceous, plant, but in nature is treated as an annual plant, so that the life cycle, beginning with germination and ending with the formation of bubbles and the formation of mature tubers, is one growing season. Potato is one of the most important crops grown and diversified use in almost all parts of our country. But the main focus areas of potatoes in Polesie and Forest-steppe.
We consider the relative performance of the photosynthetic productivity of potato and agro-climatic conditions for growing potatoes for the period 1986 to 2005, and expected their changes calculated by the climate change scenarios A1B and A2 for the period 2011 to 2050 in Eastern and Western Forest-Steppe. We consider the agrometeorological and agro-climatic conditions in which there may be a maximum performance of potato.