bluuebunny/crossref_metadata_2025 huggingface dataset:
Simulation of radial oscillations of a spring-loaded roll in a roll compactor
Authors: Chizhik S. A. , Volchek O. M. , Prushak V. Y.
Published: December 2021

Carried out simulation of oscillations of a spring-loaded roll in a roll compactor when interacting the powder being compacted with the rolls. Considering the separation of the feed and compaction areas in the contact area of the roll with the material being compacted, we obtain the dependence of the force acting on the roll on the gap size between the rolls. It is shown that this dependence is non-linear, and it can be described with a sufficiently high accuracy degree by an exponential function with a negative exponent in the working range. The given numerical solution of the equation of free nonlinear oscillations of the spring-loaded roll has shown that considering the deformation of the material being compacted leads to a reduction of the natural frequency of the system by 20–25 % compared to the case, where the pressure force of the powder on the roll is assumed to be independent of the gap size. The nonlinearity of the dependence of the pressure force on the gap also leads to the increase by 10 % in the calculated values of the maximum displacements. The developed approach to the calculation of oscillations of the spring-loaded roll in the roll compactor enables to take into account the peculiarities of deformation of the powder being compacted during its interaction with the rolls. In addition, it allows estimating the frequencies and oscillation amplitudes and setting the optimum range of spring rate values, at which the occurrence of resonance in the machine is not possible.
Characterization of opportunity for upgrading of the system based on arc plasma torch for thermal spaying of ceramic materials, by means of use of fuel vortex intensifier. Part I: Thermodynamic modeling of the system efficiency parameters
Authors: Devoino O. G. , Gorbunov A. V. , Gorbunova V. A. , Volod’ko A. S. , Koval V. A. , Yatskevich O. K. , Halinouski A. A.
Published: December 2021

One of the main trends in the field of improving the modern technologies of thermal spraying, including plasma one, for functional ceramic coatings formation is the reducing the energy consumption of the process. In this regard, one of the important directions for improving these technologies is the development of their new versions, using the principle of adding inexpensive fuel-oxidizer mixtures based on hydrocarbons with air. This type of plasma-fuel type of spraying will be promising for application at the present time, first of all, in order to obtain refractory functional coatings. For this purpose, we investigated the opportunity for upgrading an industrial unit/system for plasma spraying of ceramic powder materials with arc plasma torch of 25–40 kW power by the use of experimental variant of a fuel gas-vortex intensifier. The thermodynamic assessment of possible parameters of the generated mixed flow after the torch with this fuel intensifier was carried out to estimate the applicability of this system to optimize the spraying of oxide and carbide coatings (based on the examples of Al2O3, Cr3C2 and other powders). The analysis of possible parameters of the produced flow after the torch with intensifier was performed for the cases of main C–H–O–N–Ar–Me (Me = Al, Cr) systems and additional C–H–O–Al-system to assess the potential of this system to modify the technology of oxide and carbide ceramic coatings formation. New regimes, which were analyzed in our research as the simulants of Al2O3 spraying, surpass on calculated energy efficiency characteristics (by 10–20 %) one of the new prospective spraying methods with (СO2+СH4)-plasma, as well as the conventional method of powder heating during the spraying with N2-plasma. The case of our proposed fuel assisted process (FA-APS) with liquefied petroleum gas (LPG) fuel for the heating of ceramic powders (especially, Al2O3) demonstrates the advantage of the process (in particular, on the energy efficiencies and energy consumption) in a comparison with the conventional regimes of APS of the powders (in N2 plasma of the standard torch). For the variants of the FA-APS with Al2O3 and Cr3C2 feedstock powders it was established to be potentially possible to obtain (at the moderate values of total electric energy consumption for the torch and auxiliary equipment, – near 1.8 and 1.0 kWh/(kg of product)) such high level of the process productivity on the final product as approximately 17 and 28 kg/h, respectively; at the values of required power of the torch:  28.2 and  22.3 kW.
Power mode of axisymmetric high-speed combined extrusion of bimetallic road milling picks
Authors: Bykov K. Yu. , Kachanov I. V. , Shatalov I. M.
Published: December 2021

The article presents a simplified three-stage model of the transition from a flat to axisymmetric deformation during high-speed, combined extrusion of bimetallic road milling picks. The transition is based on the principle of equality of areas, according to which the area of a figure during a flat deformation is replaced by an equal area of a circle. In this case, it is assumed that the kinematically possible field of the slip lines remains unchanged. This approach makes it possible to reduce the number of necessary calculations and at the same time maintain a high degree of correctness of the obtained equations. The first stage shows the transition to a special case of a flat problem, in which a stepped rectangular part is extruded from the original square blank, in which one of the sides is equal to the square side of the original blank. At the second stage of the transition, a flat-step part having square sections along its entire length is extruded from the original square-section blank. Directly at the third stage, the final transition to the axisymmetric deformation of the cutter is formed, in which the area of the square is replaced by the equal area of the circle. The dependences obtained because of solving the axisymmetric problem can be recommended for calculations in the industrial implementation of the technology of high-speed combined extrusion of bimetallic milling picks.
Determination of the plasticity of metals by impact indentation of a spherical indenter
Authors: Kren A. P.
Published: December 2021

The problems of measuring the plastic characteristics of metals are considered. It is shown that the characteristics of materials used to compare their plasticity are not comparable and depend in the different degrees on the values of strain, strain rate, and modulus of elasticity. At the same time, the value of plasticity is more physically substantiated, which is determined by the ratio of plastic strain to total strain. It is shown that one of the optimal methods for measuring plasticity (plasticity index) is indentation. The possibility of using impact microindentation for this purpose is studied and expressions are proposed that allow calculating the plasticity based on the results of a single indentation of a spherical indenter. The specialties of the calculation of strain for this type of testing are shown. It was found that the values of plasticity obtained from the ratios of the depths of the plastic and elastic penetration of the indenter are equivalent to the values calculated from the energy ratios upon impact. Experimental studies have been carried out on metals with different hardness and type of crystal lattice. For the first time, the effect of strain rate, deformation, and impact energy (initial impact velocity) on the calculated value of plasticity when a sphere is impressed with strain rates of ~ 103 s–1 is shown. It is shown that when the strain corresponding to the onset of full plasticity during indentation is reached, the maximum sensitivity of the measured plasticity parameter for various metals is achieved.
MENINGKATKAN KOMPETENSI PELAKU UMKM DALAM BERBISNIS MELALUI PELATIHAN HARGA POKOK PRODUKSI
Authors: Ariani Marieta , Zainal Hasnawati
Published: December 2021

The success of the company in determining the Selling Price of its business products is largely determined by the success of the company in determining or calculating the Cost of Production (HPP) of the products it produces.Errors in the determination of the cost of production (HPP) can cause errors in the determination of the selling price of the resulting product, so that the company cannot compete with other similar businesses.The difficulty of determining the cost of production and selling prices of fashion and culinary products experienced by MSME entrepreneurs has become a big problem and has been going on for a long time among kompeten member entrepreneurs in Bekasi, so continuous training is needed.This can also be used as a background or basis for scientific research by PKM lecturers, so that research results can be obtained that can answer the difficulties of entrepreneurs of KOMPETeN members of the Bekasi region in determining the cost of production and selling prices of fashion and culinary products.
CORPORATE SUSTAINABILITY PERFORMANCE AND FINANCIAL PERFORMANCE: MODERATING EFFECT OF BOARD COMPOSITION
Authors: Nurlaily Ferina , Rahmi Ahadiyah Adinia
Published: December 2021

This study analyzes the moderating effect of the composition of female directors and the composition of independent directors on CSP and ROA. The purpose of this study is to analyze the effect of the disclosure of Corporate Sustainability Performance (CSP) on the Return on Assets (ROA) as a proxy for the company's financial performance. The population of this study is companies listed on the SRI-KEHATI index during the period November 2016– October 2019. The research hypotheses were tested using linear regression analysis and moderated regression analysis. The study results found that CSP has a significant effect on the company's ROA. The better and more complete the CSP disclosure, the higher the ROA. Furthermore, the composition of female and independent directors does not significantly affect CSP on corporate financial performance. This study implies that female directors and the composition of the independent board are more for compliance with regulatory requirements.
PELATIHAN DAN PENDAMPINGAN PENGGUNAAN KIT IPA DI SD NEGERI 34 CAKRANEGARA
Authors: Khair Baiq Niswatul , Astria Fitri Puji , Wardani K. Sri Kusuma , Nurwahidah Nurwahidah , Sriwarthini N L P. Nina , Rahmatih Aisa Nikmah
Published: December 2021

The Ministerial Regulation on Basic and Secondary Education Process Standards ensures that the learning process in primary education should be enjoyable. Fun learning can be obtained through scientific-based learning such as practicum or business. But in reality, learning is conventional, namely lectures and discussions. The utilization of sciences KIT as a learning medium that is owned is never used in classroom learning activities. This is shown from the sciences KIT which is still neatly stored and looks dusty. The reason the sciences KIT was not used was because of the inability of the teacher because they had never received training and the training would damage the sciences KIT used so that the teacher preferred to use conventional learning methods and media. The strategy carried out in this service uses several methods of lectures and presentations, question and answer/discussion, and mentoring. Activities that have been implemented can be said to run smoothly according to the planned schedule. There are no obstacles and problems during the activity and all team members can attend every activity. The whole series of activities starting from the opening stage, delivering training materials, training to closing went smoothly without any meaningful school.
FAKTOR PENGHAMBAT MEMBACA PERMULAAN PADA SISWA KELAS II SDN 32 CAKRANEGARA TAHUN AJARAN 2020/2021
Authors: Yani Sri Ayu Merlinda , Nisa Khairun , Setiawan Heri
Published: December 2021

This study aims to determine the inhibiting factors for early reading in grade II students of SDN 32 Cakranegara and alternative solutions that can be used so that they do not experience obstacles in beginning reading. Internal factors include intelligence, interests, talents, and motivation, while external factors include family environment, school environment, and community environment. This type of research uses a descriptive qualitative approach. Data collection techniques were carried out through interviews, observation, and documentation. The data analysis technique used is data reduction, data presentation, conclusion or verification. . Test the validity of the data using triangulation of sources, and the availability of references. The subjects of this study were second grade students. The results of this study indicate that the inhibiting factor for early reading of students in grade II is the lack of interest, talent, motivation from within the students themselves to learn to read, this is also supported by family and school environmental factors. First, the lack of support and motivation from parents and families towards students in the absence of special attention given to students in teaching students to read at home, secondly, the absence of teacher creativity in teaching students to read and the absence of facilities from schools that support the learning process. There are also strategic efforts used by the teacher in overcoming the obstacles to students' early reading, namely dividing students / focusing on teaching students who cannot read, providing special books for early reading, playing games / games, reminding parents to often teach children to read at home, no matter how busy they are, and train students on a daily basis.

Keywords: analysis, inhibiting factors, early reading, SDN 32 Cakranegara.
Melatih keterampilan siswa SMP dalam menggunakan Microsoft Office dan PhET
Authors: Hikmawati Hikmawati , Malika Julia Izni , Insani Firda Aprilia , Rahmah Nur , Suhartanti Paramita
Published: December 2021

Skills in running computer programs are important for students so that they are able to learn and work in accordance with developments in technology, information, and communication. The purpose of this community service activity is to train junior high school students' skills in using Microsoft Office and PhET. This activity was carried out at SMPN 19 Mataram for 8 weeks, starting from September 27 to November 21, 2021. This activity is part of the Campus Teaching Program Batch 2. The methods of implementing the activities are: planning, implementing, and evaluating activities. At the activity planning stage, the team coordinated and discussed with supervisors, subject teachers (ICT and Science), and school principals. At the activity implementation stage, the team trained students in using software applications, namely Microsoft Office and PhET. Applications in Microsoft Office that are chosen to be trained to students are Excel, Word, and PowerPoint. Meanwhile, PhET Simulation taught to students is the topic of Static Electricity. The training schedule for Microsoft Office uses ICT subject time, while for PhET uses Science subject time. At the activity evaluation stage, the team together with the supervisors identify the obstacles experienced and the improvement efforts made every week. The team also coordinated and discussed with ICT subject teachers, science teachers, and school principals about the follow-up plan of the training activities. The training provided by the team on technology adaptation in the form of using software applications has improved the skills of junior high school students in using computer programs, namely Microsoft Office and PhET.
Mental Health Perceptions from Artwork
Authors: Sammut Alexei , Grech Paulann , Galea Michael , Mangion Margaret , Scerri Josianne
Published: December 2021

The relationship between artwork and mental health has been the subject of various research endeavours. Whilst artwork has been long used as a means of emotional expression, it is also a method of raising mental health awareness. In this study, an art collection was presented to depict the challenges faced by many individuals living with a mental illness. Through a series of open-ended questions, twenty-nine participants were requested to give a title to each piece and to describe the perceived message and emotions related to each painting. The thematic analysis process of the participants’ descriptions led to the identification of three themes, namely those of Darkness, Solitude and Recovery. Whilst congruence was often observed between the participants themselves and between the viewers and the artist, discrepancies were also noted. Artwork can be an important medium in addressing stigma and in guiding reflections on mental health topics.
Investigation of Two Precipitation Methods for Extracting Immunoglobulin Y (IgY) from Egg Yolks
Authors: Quynh Lan Tran Thi , Kha Tran Trong
Published: December 2021

Two groups of hens (control and immunization group) were arranged in an experimental design with an immunization schedule of 3 injections of BSA antigen. IgY antibodies were extracted from egg yolks by two precipitation processes (chloroform and polyethylene glycol precipitates) and quantified using a standard curve of protein concentration. The purification of IgYwas confirmed by SDS-PAGE. Total protein extracted from egg yoks were less contaminated with yellow pigments (lutein and zeaxanthin) by using chloroform precipitate. The 2nd week post-immunization, IgY concentration increased respectively to 3903 ± 726 μg.ml-1 (chloroform extraction process) and 2937 ± 294 μg.ml-1 (PEG extraction process) (P < 0.01). After 3rdimmunization, IgY level obtaining from in immunization group extracted by chloroform process (6633 ± 1166 μg.ml-1) increased 2.7 times higher than that in control group (2482 ± 414 μg.ml-1). Whereas IgY concentrations obtained from PEG extraction process were not significantly different between the experimental group and control group. Chloroform and PEG precipitation methods had the same protein profile on the SDSPAGE. IgY antibody was identified by the presence of bands corresponding with IgY heavy chain (67-70 kDa) and IgY light chain (25 kDa) for both precipitation processes.
Evaluation of inflammation in obesity and chronic kidney disease with hemogram parameters
Authors: BOZACI İlter , TATAR Erhan
Published: December 2021

Aim: Chronic inflammation is involved in the pathogenesis of both obesity and chronic kidney disease (CKD). We aimed to evaluate the parameters derived from complete blood count (CBC) as inflammatory markers in obese patients and obese CKD patients.Methods: Individuals enrolled in the study were divided into three groups. Group-1 was composed of obese patients; group-2 was composed of obese CKD patients and group-3 was composed of healthy individuals as the control group. This study was conducted at a training and research hospital over 6 months period.Results: Forty-one patients were in group-1; 41 patients were in group-2 and 22 individuals were in group-3. White blood cell count (WBC) was significantly higher in group-1 and group-2 compared with group-3 (7,5±1,4 x103/µL vs 8,4±2,4 x103/µL vs 6,5±1,3 x103/µL, respectively, p<0.001) and neutrophile to lymphocyte ratio (NLR) was significantly higher in group-1 and group-2 compared with group-3 (1,9±0,7 vs 2,5±1,5 vs 1,7±0,4, respectively, p<0.001). NLR and WBC was found positively correlated with systolic blood pressure, urea, creatinine, uric acid, whereas negatively correlated with estimated glomerular filtration rate.Conclusion: It is important to determine significant results in CBC derived markers that are widely used in routine clinical practice as inflammatory markers.
MESNEVÎ’DE ZİKREDİLEN YAHUT TELMİHTE BULUNULAN ARAPÇA DARB-I MESELLER
Authors: MERMER Kenan
Published: December 2021

Arapça yalnız Arap ırkıyla değil; İslâmiyet’i kabul eden diğer milletlerin içerisinde yetişen zekâ ve kabiliyetlerin kaleme aldığı eserlerle, hem bir sanat hem de bir bilim dili olarak daima kendi sosyolojik ve kültürel halkasını genişletmiştir. Bir eser Türkçe yahut Farsça olduğunda da bu kültürel etki hemen hissedilir. Bu geniş halkanın bir üyesi olarak Mesnevî, her şeyden önce bir ahlâk kitabıdır. Mesnevî, varlığa ve vicdana dair iddia ve tespitlerini insanlığa sunarken inancın ve bilimin dili olarak taayyün eden Arapça’nın söz ve mesel varlığından etkilenmiştir. Meseller (=Atalar sözü) farklı milletlerin ortak hafıza ve kanaatleriyle oluşturulmuş binlerce yıllık bir folklordur. Bu sebeple bir eserin, beynelmilel bir yüze sahip olan mesellere bîgâne kalmasını düşünmek oldukça güçtür. Elbetteki kültürlerin mesel getirme mantıklarında bazı farklılıklar vardır. Bu bağlamda Arap kültüründeki mesellerde yaşanmışlığa ve özel isimlerin kişisel tecrübelerine binaen kullanımlara çokça rastlanır. Örneğin, Türk ve Fars atasözü kültüründe mesel, fülan gibi cesur, falan gibi cömert gibi teşbihler üzerinden getirilmez; bizatihi kavramın kendisi merkeze alınırak yapılır. Oysa Arap kültüründe cömert, korkak, ahmak ve cesur tanımı, tarihteki gerçek yahut muhayyel kişiler ve onların yaşadığı bir takım olaylarla birlikte mesel hâline getirilir. Mesnevî’de zikredilen yahut telmihte bulunulan mesellere genel itibarla bakıldığında büyük çoğunluğunun “Hikmetli sözler ve nükteler” başlığına uydukları görülür. Bu sözler beylikmeşrep diye de tabir edilen ortak aklın ürünü ifadelerdir ve bunların bazıları felsefî bir tabana yahut temel mantık ilkelerine yaslanmaktadır. Çalışmamızda Mesnevî’de geçen Arapça darb-ı meseller farklı tasnifler altında değerlendirilmiş olup ayrıca mesellerin transkripsiyonlu hâli, tercümesi ve ilgili beyitlerin bağlamı dairesinde içeriği yorumlanmaya çalışılmıştır. Meseller bazen birebir çeviri olarak takip edilebilirken bazıları ise telmîhi fark etmekle tespit edilebilecek tarzda kaleme alınmıştır. Öncelikli amacımız, Mesnevî’nin Arapça mesel ve tabir varlığını listeleyebilmek ve mesel getirmenin dil içerisindeki mantığını, kısmen de olsa gösterebilmek amacına matuftur.
Medical waste management in healthcare institutions
Authors: Fahim Aslam
Published: December 2021

Studies over the past decade have shown that medical waste generated has increased significantly and will continue to increase with the pandemic. To identify solutions to solve this global issue, the assignment focuses on defining the existing waste management practices followed in developing countries and highlights specific challenges faced. The purpose of this assignment is to identify ways where healthcare organizations can improve the overall medical waste management (MWM) process and create awareness among co-workers. The assignment is divided into three main components where critical analysis of primary research, policy for waste management and use of IT/IS tools were analyzed. Three articles analyzed in this assignment were published in high impact journals/international reports between 2014-2018. Findings from the primary research were obtained using a Likert-scale questionnaire from 156 healthcare institutions, the results indicated that MWM practices followed in healthcare institutions are impacted by three factors, awareness of staff, technological availability and attitudes of top-board management. The three factors had a p-value of 0.00 in the correlation analysis carried out indicating a highly significant relationship between them. Integrated sustainable waste management model following the GWMO (Global Waste Management Outlook) framework was identified to be most adaptable method. The advantage of this model is such that it can be remodeled based on the country’s requirement with the help of digital tools and country-level indicators. The use of IT/IS tools were critically analyzed in the last article with use of GIS integrated real-time waste management system being identified as the most feasible option, where using online tracking systems and smart bins the type of waste and quantities produced can be measured and provide real time updates to local authorities to ensure safe waste management practices are followed. Recommendations from the assignment identifies that countries needs to conduct a preliminary analysis of types of medical waste being generated in healthcare institutions to provide a better understanding of types of hazardous waste exposed to the environment. Additionally, frequent training workshops needs to be conducted to ensure the management and staff understand the importance of MWM.
Influence of parity and Body Mass Index (BMI) on endometry thickness variation in women of Lokossa, Benin
Authors: Gbaguidi Ahotondji Bertin  , Avocefohoun Sako Alphonse  , Gbaguidi Nonvignon Magloire  , Komahoue Komabou Fulbert  , Youssao Abdou Karim Alassane  , Hounsossou Hubert  , Ahyi Virgile  , Biaou Olivier  , Baba-Moussa Lamine Said
Published: December 2021

The thickness of the endometrium is also an important parameter in the clinical management of women. It is often influenced by several parameters which are important to determine. This is why the present study looked at the factors that influence the variation in the thickness of the endometrium of women in Lokossa in the Republic of Benin. This descriptive, prospective and cross-sectional study concerns 166 women aged 15 to 40 in Lokossa. Ultrasound examination measured the thickness of the endometrium on the longitudinal section through the suprapubic route. Anthropometric parameters were taken by other equipment from each woman. Analysis of one-way proc glm ANOVA variants and Student-Newman-Keuls (SNK) tests identified factors associated with variation in endometrial thickness in women. At the end of the study, the minimum, average and maximum values ​​of the thickness of the endometrium obtained are respectively Vm = 3.50 mm, VMoy = 6.73 ± 1.38 mm, MV = 10.00 mm during the pre-ovulatory phase, Vm = 7.30 mm, MV avg = 10.75 ± 2.11 mm, MV = 16.00 mm during the post-ovulatory period. There is an association between the thickness of the endometrium and parameters such as age, weight, Body Mass Index, parity. BMI has been found to be associated with changes in endometrial thickness. And this variation in the thickness of the endometrium of the woman's uterus is related to the number of deliveries. Thus, the higher the number of childbirth, the greater the thickness of the endometrium deprived.
Satisfacción del universitario en su camino hacia la inserción socio-laboral: Un estudio de caso
Authors: Martínez-Clares Pilar , González-Lorente Cristina
Published: December 2021

¿Está satisfecho el alumnado con el proceso de inserción socio-laboral iniciado en la universidad?  La satisfacción de los estudiantes suele quedar en un segundo plano al analizar dicho momento de transición, tanto en la investigación como en los propios8 servicios de orientación profesional universitaria. Con el objetivo de medir este indicador de calidad en la educación superior, esta investigación pretende validar una escala de satisfacción ad-hoc basada en el triángulo formación-orientación-empleabilidad como marco teórico de la orientación en la educación superior. Se recurre al Análisis Factorial Confirmatorio y a la metodología SEM para la validación de la escala y se comprueba su fiabilidad mediante el estadístico Alfa de Cronbach. Los datos obtenidos con esta escala entre los 497 estudiantes de último curso participantes de la Universidad de New Haven (EE. UU.) y de la Universidad de Padua (Italia) se comparan a partir de la prueba no paramétrica U de Mann-Whitney. Los resultados demuestran la relevancia y adecuación de la escala de satisfacción con el proceso de inserción socio-laboral. Además, los estudiantes que completaron la escala en la UPD (Italia) están menos satisfechos que los participantes estadounidenses (UNH), lo que coincide con otros estudios relacionados. Se demuestra la adecuación de la escala de satisfacción como herramienta válida recopilar datos fiables para mejorar la orientación universitaria.
Uzaktan eğitim sürecinde okul yöneticilerinin bilgi teknolojileri kullanımı öz yeterlikleri ile yönetim becerilerinin dönüştürücü liderlik davranışı üzerindeki etkisi
Authors: KİRAZ Zafer
Published: December 2021

Bu araştırmanın amacı okul yöneticilerinin uzaktan eğitim sürecinde eğitimde bilgi teknolojileri kullanımı öz yeterlikleri, yönetim becerileri ve dönüştürücü liderlik davranışları arasındaki ilişkiyi ortaya koyarak okul yöneticilerinin eğitimde bilgi teknolojileri kullanım öz yeterlikleri ile okul yöneticilerinin yönetim becerilerinin dönüştürücü liderlik davranışı üzerindeki yordayıcılığını incelemektir. Nicel araştırma yöntemine göre desenlenen bu araştırmanın evreni 2021 yılı içerisinde Tokat ilinde bulunan okul öncesi eğitim kurumu, ilkokul, ortaokul ve orta öğretim kurumlarında görev yapan okul yöneticilerinden oluşmaktadır. Araştırmanın örneklemi ise evreni temsil gücünün yüksek olması bakımından rastgele örnekleme yöntemiyle seçilen ve araştırmaya gönüllü olarak katılan 143 okul yöneticisidir. Araştırmanın alt problemlerinin yanıtlanmasında basit ve çoklu doğrusal regresyon analizleri kullanılmıştır. Araştırma sonucunda, okul yöneticilerinin uzaktan eğitim sürecinde eğitsel bilgi teknolojileri kullanım öz yeterliklerinin dönüştürücü liderlik davranışları ve yönetim becerisi üzerinde pozitif yönlü ve anlamlı etkisinin olduğu belirlenmiştir. Ayrıca araştırmada okul yöneticilerinin yönetim becerisinin dönüştürücü liderlik davranışları üzerinde de pozitif yönlü ve anlamlı etkisinin olduğu saptanmıştır. Bunların yanı sıra dönüştürücü liderlik davranışı bağımlı değişkeni ile okul yöneticilerinin uzaktan eğitim sürecinde yönetim becerisi ve eğitsel bilgi teknolojileri kullanım öz yeterliği bağımsız değişkenlerinin birlikte dâhil edildiği çoklu doğrusal regresyon modelinde, bağımsız değişkenlerin birlikte bağımlı değişken üzerinde pozitif yönlü anlamlı etkisinin olduğu görülmüştür. Basit doğrusal regresyon sonuçlarına göre eğitsel bilgi teknolojileri kullanım öz yeterliklerinin dönüştürücü liderlik davranışları ve okul yöneticilerinin yönetim becerisi üzerinde; okul yöneticilerinin yönetim becerisinin ise dönüştürücü liderlik davranışları üzerinde anlamlı bir yordayıcı olduğu söylenebilir. Çoklu doğrusal regresyon sonuçlarına göre ise okul yöneticilerinin sadece yönetim becerisinin dönüştürücü liderlik davranışı üzerinde anlamlı bir yordayıcı olduğu görülmektedir. Eğitsel bilgi teknolojileri kullanım öz yeterlikleri değişkeni anlamlı bir etkiye sahip değildir.
Türkiye’de kaynaştırmadan bütünleştirmeye geçiş
Authors: ÜNAY Ebru , MELEKOĞLU Macid Ayhan , ÇAKIROĞLU Orhan
Published: December 2021

Bu çalışmanın amacı Türkiye’de özel eğitim ve bütünleştirme alanında 2014-2019 yılları arasındaki sayısal eğilimleri ortaya koymaktır. Bu kapsamda ilk olarak Milli Eğitim Bakanlığı’ndan (MEB) alınan özel eğitim verilerinin özel eğitim ve bütünleştirmedeki öğrenci sayıları açısından betimsel olarak analizi yapılmıştır. Sonrasında okul öncesi, ilkokul, ortaokul ve lise düzeyleri için bütünleştirme eğitimdeki istatistiksel eğilimler cinsiyet ve yetersizlik türleri açısından betimsel olarak analiz edilmiştir. Yapılan incelemede örgün eğitim sistemi içindeki özel gereksinimli öğrencilerin sayısının arttıkça bütünleştirme ortamına yerleştirilen özel gereksinimli öğrencilerin sayısının da arttığı görülmektedir. Bu artış hem özel gereksinimli öğrencilerin genel eğitim okullarında daha görünür hâle gelmesi fikrini hem de en az kısıtlayıcı eğitim ortamı ilkesini desteklemektedir. Bulgular, bütünleştirme ortamına yerleştirilen öğrencilerin yanı sıra özellikle dikkat eksikliği ve hiperaktivite bozukluğu ve duygu ve davranış bozukluğu başta olmak üzere özel eğitim gereksinimi olan öğrencilerin sayısının da hızla arttığını göstermektedir. Ayrıca okul öncesi ve lise kademesindeki okullaşma oranının çok düşük olması çalışmadan elde edilen bir diğer bulgudur. Bütünleştirme ortamlarında öğrenim gören öğrencilerin dağılımı farklı özel gereksinim alanlarına göre değerlendirildiğinde otizm spektrum bozukluğu tanısı alan öğrencilerin bütünleştirme ortamlarına yerleştirilme oranlarının çok düşük olduğu görülmektedir. Çalışmanın bulguları sonucunda öğretmenlere bütünleştirme uygulamaları ile ilgili verilen hizmet içi eğitimlerin içeriği ve yeterliliği ile ilgili düzenlemeler yapılması, özel eğitim gereksinimi olan öğrenciler için bilimsel dayanaklı müdahale programları hazırlaması ve etkili geçiş planları ile bütünleştirme uygulamalarının kalitesini artırmaya odaklanması önerilmektedir.
Özel öğrenme güçlüğü olan öğrencilerin yürütücü işlevlerine yönelik uygulanan müdahalelerin incelenmesi
Authors: BALIKÇI Özge , GÖRGÜN Bora
Published: December 2021

Özel öğrenme güçlüğü olan öğrenciler okuma, yazma ve matematikte farklı sorunlarla karşılaşmaktadır. Özel öğrenme güçlüğü olan öğrenciler en çok okuma alanında sorun yaşamakta ve öğrencilerin büyük bir kısmı okumada yaşadıkları güçlükler nedeniyle tanı almaktadır. Özel öğrenme güçlüğü olan öğrencilerin yaşadıkları akademik güçlükler yürütücü işlevlerdeki sorunlarından kaynaklanabilmektedir. Bununla birlikte öğrencilerin yürütücü işlevlerdeki yetersizlikleri okul başarılarını olumsuz olarak etkilemektedir. Özel öğrenme güçlüğü olan öğrencilerin sorun yaşadıkları alanlara yönelik çeşitli müdahaleler uygulanmaktadır. Bu çalışmada 2000-2021 tarihleri arasında özel öğrenme güçlüğü olan öğrencilerin yürütücü işlev becerilerini geliştirmeye yönelik uygulanan müdahaleleri içeren çalışmalar incelenmiştir. Özel öğrenme güçlüğü olan öğrencilerin yürütücü işlev becerilerine yönelik müdahaleleri konu alan çalışmaların gözden geçirilmesinin hedeflendiği bu çalışmada EbscoHost, ProQuest Central, Springer LINK, SAGE, ScienceDirect, SCOPUS ve ULAKBİM Ulusal Veritabanları’nda “yürütücü işlevler”, "yürütücü işlev müdahaleleri", "özel öğrenme güçlüğü",”executive functions”, “executive functions interventions”, “specific learning disabilities”, “working memory”, “attention” anahtar sözcükleri kullanılarak tarama yapılmıştır. Bu kapsamda dahil etme ölçütlerini karşılayan 13 makaleye ulaşılmıştır. Araştırmanın bulgular bölümünde özel öğrenme güçlüğü olan öğrencilerin yürütücü işlev becerilerini geliştirmeye yönelik uygulanan müdahaleler ile ilgili çalışmaların katılımcıları, yöntemleri ve sonuçları konusunda bilgi verilmektedir. Sonuç olarak araştırmaya dahil edilen yürütücü işlev müdahalelerinin özel öğrenme güçlüğü olan öğrencilerin dikkat, çalışan bellek ve akademik becerilerini olumlu olarak etkilediği görülmektedir. Ek olarak, Türkiye’de özel öğrenme güçlüğü ile ilgili literatürün gelişmesi, öğrencilerin yürütücü işlev becerilerinin değerlendirilmesi ve geliştirilmesi için daha fazla bilimsel çalışma ihtiyacı bulunmaktadır.
Piyano eğitiminde kullanılan Bertini’nin 25 etudes elementaires op.137 kitabının teknik ve müzikal kazanımlar açısından incelenmesi
Authors: ÖMÜR Özlem
Published: December 2021

Bu çalışmada Fransız piyanist ve besteci Henri Jerome Bertini’nin, piyano eğitiminde kullanılan, “25 Etudes Elementaires Op.137” adlı etüt kitabı incelenmiştir. Nitel bir çalışma olan bu araştırmada betimsel araştırma modeli kullanılmış ve literatür, döküman inceleme yoluyla taranmıştır. Yapılan incelemede, mesleki müzik eğitimi kurumlarının piyano eğitimi müfredatlarında da yer verilen Bertini’nin piyano etütlerine ilişkin herhangi bir çalışmaya rastlanmamıştır. Bu veriler ışığında, Henri Jerome Bertini’nin etüt kitabının analizine karar verilmiştir. “25 Etudes Elementaires, Op.137” etüt kitabında yer alan tüm etütler, içerdikleri teknikler, müzikal ifadeler ve bu doğrultudaki kazanımlar açısından incelenmiştir. Kitaptaki her etüdün, çalıştırmayı hedeflediği davranışlara ve kazanımlara yönelik birer alıştırma ve giriş bölümü taşıdığı saptanmıştır. Bu durumun, etütleri çalışacak öğrencileri, etütte edinecekleri kazanım ve donanımlara önceden hazırlaması açısından önemli olduğu düşünülmüştür. Elde edilen bulgular doğrultusunda etütlerin en çok, legato, staccato, çift ses, akor, arpej, gam çalışması, oktav, parmak geçişi, aynı notada parmak değişimi gibi temel teknikler içerdiği, tempo açısından etütlerde daha çok ağır tempoların tercih edildiği, nüans bakımından çok zengin olmayan etütlerin, ton açısından belli bir sıra izlediği ve yine etütlerde farklı bazı yapısal özelliklere yer verildiği sonuçlarına ulaşılmıştır. İncelenen etüt kitabının, piyano eğitiminde hem temel tekniklerin ve müzikal ifadelerin kazanımı hem de farklı yapısal özelliklerin tanınması ve öğrenilmesi açısından yararlı bir kaynak olduğu düşünülmektedir.
Age Structure and Life Expectancy in a Stellagama stellio (Linnaeus, 1758) Population from Kütahya, Turkey
Authors: Gidis Muge , Baskale Eyup
Published: December 2021

The life history traits of the rough-tailed agama, Stellagama stellio (Linnaeus, 1758) in a population from Kütahya, Turkey were described by the skeletochronological method. From a total of 54 individuals, the mean ages ± standard deviation (SD) of males and females were calculated as 5.03 ± 2.076 years and 4.79 ± 1.584 years, respectively, and age distributions were not significantly different between sexes. The age at maturity was 2 years for both sexes. The longevity of females was 8 years, whereas for males it was 9 years. Mean snout-vent length (SVL) ± SD was 101.7 ± 9.6 mm in females and 104.9 ± 14.4 mm in males and did not significantly differ between the two sexes. We examined the sexual dimorphism of S. stellio in relation to the difference in population age structure between the sexes using the skeletochronological method. Male individuals were slightly larger than female individuals at the same age, but this difference was not statistically significant. We also estimated the maximum ages for S. stellio, which agree with other populations in Turkey.
The «Empty Forest Syndrome» and the Herpetofaunal Communities in Laos (South-Eastern Asia)
Authors: Zuklin Tomas , Maury Nathanael , Sitthivong Saly , Van Pham Thong , Le Duc Olivier , Bordes Cedric , Leprince Benjamin , Ducotterd Charlotte , Oanh Lo Van , Vilay Phimphasone , Quang Luu Vinh , Luiselli Luca
Published: December 2021

Nowadays, Laos remains one of the scientifically least known countries of Asia in terms of herpetological knowledge. Here, we evaluate composition of species in freshwater ecosystems (main river courses) and terrestrial ecosystems (forests) in two distinct regions using Visual Encounter Surveys along designed transects, examination of fishers’ catches and standardized interviews. In Northern Laos, we recorded only 18 reptile individuals (2 turtle and 1 snake species). Interview surveys demonstrated that in Nam Xam River, fishers are more likely to hunt turtles and we identified one potential site where the world’s rarest turtle, Rafetus swinhoei, could be still present in the wild. In Nam Et Phou Louey National Park, we found 19 reptile species (8 lizard, 10 snake, 1 turtle species) in the different study sites, demonstrating a low species density in all different surveyed habitats. In Central/Southern Laos, we observed 30 species of reptiles (14 snake, 16 lizard, 35 amphibian species). Our study offers preliminary insights into the composition of amphibians and reptiles in Laos. The great majority of the species were non-threatened or not evaluated, and a few were threatened, suggesting that more research is needed to proper understand the conservation status of Laos’ herpetofauna. We highlighted, indirectly by interviews with local fishers, the possible presence of the turtle Rafetus swinhoei, thus providing a new hope for avoiding the extinction of this species. Finally, we observed a relatively low number of species in each habitat type, which is remarkably lower than in tropical forests of other continents or of nearby south-east Asian countries, indicating that the herpetofauna communities in Laos are depleted, reflecting an ‘empty forest syndrome’.
Distribution Patterns and Ecological Niches of the Red-tongued Pit Viper (Gloydius ussuriensis) and the Central Asian Pit Viper (Gloydius intermedius) in Cheonmasan Mountain, South Korea
Authors: Do Min Seock , Nam Ki-Baek
Published: December 2021

Studies on the distribution of species are important to understanding the interspecific ecological niche and habitat selection through geographic environmental information. Particularly, vipers in the same genus have been an important topic because they show differences in the preferred geographical environment, depending on the distance of the phylogenetic relationship. This study investigated the geographical environment of red-tongued pit vipers (Gloydius ussuriensis) and Central Asian pit vipers (Gloydius intermedius) in the mountainous area, Cheonmasan Mountain County Park, South Korea, from April 2012 to October 2014, to understand the relationships among their habitat characteristics and ecological niche. Red-tongued pit vipers mainly lived in low altitude, wet valley areas with a low solar reflectance, while Central Asian pit vipers inhabited high altitude, dry land with large amounts of sunshine. As a result, our study supports that the ecological niche of red-tongued pit vipers and Central Asian pit vipers, inhibiting in Cheonmasan Mountain was overlapped low according to the majority of geographical environmental variables. The differentiated diet preference might be took into consideration as one of the potential key factors to the ecological niche differentiation among two species.
Preliminary Assessment of the Diversity and Habitat Preferences of Herpetofauna in Cholistan Desert, Pakistan
Authors: Ali Waqas , Javid Arshad , Hussain Ali , Bukhari Syed Mohsin , Hussain Saddam
Published: December 2021

This one-year survey was conducted from February 2017 to January 2018 to assess the herpetofaunal diversity in Cholistan desert, Bahawalnagar district, Punjab, Pakistan. Field surveys were conducted during dawn and dusk for fifteen consecutive days in alternate months and five sub sampling sites were sampled at ten field visits. Specimens were collected through hand capture, using snake sticks, forceps, drag nets, noose traps, pitfall and funnel traps. Overall, two species of toads, two species of frogs, two species of turtles, ten lizards species and ten snake species belonging to 23 genera and 14 families were recorded. Simpson index was calculated as 0.933, evenness 0.733 and Shannon – Wiener index was 2.947 indicating moderate to high level of diversity. Bufo stomaticus (Pi = 0.1253), Uromastyx hardwickii (Pi = 0.0739) were the dominant amphibian and reptilian species, respectively while Uromastyx asmussi was recorded for the first time in the study area. Hand capture and pitfall traps appeared to be the most effective methods to capture the amphibian and reptiles. The distribution ranges of amphibians and reptiles have changed and such surveys are necessary to update baseline information in the country. We recommend further systematic survey work and molecular analysis of the native species be undertaken in the future to supplement our findings.
Repdigits as difference of two Fibonacci or Lucas numbers
Authors: Ray P. , Bhoi K.
Published: December 2021

In the present study we investigate all repdigits which are expressed as a difference of two Fibonacci or Lucas numbers. We show that if $F_{n}-F_{m}$ is a repdigit, where $F_{n}$ denotes the $n$-th Fibonacci number, then $(n,m)\in \{(7,3),(9,1),(9,2),(11,1),(11,2),$ $(11,9),(12,11),(15,10)\}.$ Further, if $L_{n}$ denotes the $n$-th Lucas number, then $L_{n}-L_{m}$ is a repdigit for $(n,m)\in\{(6,4),(7,4),(7,6),(8,2)\},$ where $n>m.$Namely, the only repdigits that can be expressed as difference of two Fibonacci numbers are $11,33,55,88$ and $555$; their representations are $11=F_{7}-F_{3},\33=F_{9}-F_{1}=F_{9}-F_{2},\55=F_{11}-F_{9}=F_{12}-F_{11},\88=F_{11}-F_{1}=F_{11}-F_{2},\555=F_{15}-F_{10}$ (Theorem 2). Similar result for difference of two Lucas numbers: The only repdigits that can be expressed as difference of two Lucas numbers are $11,22$ and $44;$ their representations are $11=L_{6}-L_{4}=L_{7}-L_{6},\ 22=L_{7}-L_{4},\4=L_{8}-L_{2}$ (Theorem 3).
Fractal functions of exponential type that is generated by the $\mathbf{Q_2^*}$-representation of argument
Authors: Pratsovytyi M.V. , Goncharenko Ya. V. , Lysenko I. M. , Ratushniak S.P.
Published: December 2021

We consider function $f$ which is depended on the parameters $0<a\in R$, $q_{0n}\in (0;1)$, $n\in N$ and convergent positive series $v_1+v_2+...+v_n+...$, defined by equality $f(x=\Delta^{Q_2^*}_{\alpha_1\alpha_2...\alpha_n...})=a^{\varphi(x)}$, where $\alpha_n\in \{0,1\}$, $\varphi(x=\Delta^{Q_2^*}_{\alpha_1\alpha_2...\alpha_n...})=\alpha_1v_1+...+\alpha_nv_n+...$, $q_{1n}=1-q_{0n}$, $\Delta^{Q_2^*}_{\alpha_1...\alpha_n...}=\alpha_1q_{1-\alpha_1,1}+\sum\limits_{n=2}^{\infty}\big(\alpha_nq_{1-\alpha_n,n}\prod\limits_{i=1}^{n-1}q_{\alpha_i,i}\big)$.In the paper we study structural, variational, integral, differential and fractal properties of the function $f$.
Maximum automobile acceleration
Authors: Shuklinov Serhii , Uzhva Anatoly , Lysenko Mikhail , Tishenko Anastasia , Novikova Yevgeniya
Published: December 2021

Problem. The disadvantage of current dependences for determining the acceleration indicators at engine maximum brake power and driving tire-to-surface friction coefficients is that they are adequate only if the engine and transmission parameters provide power input to the drive wheels rolling without slipping regardless to speed. To eliminate this drawback, it is necessary to take into account that the power input to the drive wheels depends on the engine shaft speed, and therefore on the speed of the vehicle when accelerating. Goal. The purpose of the work is to further develop the theory of the automobile by improving the dependencies that allow determining the automobile acceleration rates and assessing the nature of its acceleration process from the design factors. Methodology. The approaches taken to achieve this goal are based on laws of physics, theoretical mechanics and the theory of automobile. Results. Analytic dependences for determining maximum and limiting automobile acceleration when speeding up depending on its design factors and speed have been improved. Dependences for determining the range of drive wheel slipping on the automobile speed when accelerating and the limiting automobile acceleration under the condition of its pitch stability have been obtained. When studying the automobile acceleration process theoretically it was found that the developed dependences allow determining the nature of automobile movement and assessing the influence of its design factors on the acceleration indicators. Originality. The obtained dependences for determining the maximum and limiting acceleration, the range of driving speeds with wheel slip when automobile accelerating allowed us to clarify the idea of the nature of movement during acceleration and the influence of automobile design factors on the acceleration indicators. Practical value. The obtained dependences can be used in designing new and improving racing cars such as dragsters, and analysing the dynamics of the vehicle when accelerating with full fuel delivery and determining the nature of driving tire-to-surface friction depending on the driving speed.
APPLICATION OF CAD FOR ANALYSIS OF STRENGTH CHARACTERISTICS OF PASSENGER CAR BODY STRUCTURES
Authors: Ashurkova Svetlana
Published: December 2021

The development of finite element design models of the passenger car body using modern CAD tools was carried out. An assessment of the strength, stability and fatigue life of the load-bearing structures of the passenger car body has been carried out.
APPLICATION OF CAD IN PRINTED ELECTRONICS
Authors: Lapshov Mihail , Prytkov Sergey
Published: December 2021

The article discusses the use of CAD systems for printed electronics methods. The differences in the use of CAD for printed electronics in comparison with traditional ones are described. Arguments are given in favor of the need to create an applied CAD system to speed up the development and design process in printed electronics.
MATHEMATICAL EXPERIMENTAL PLANNING AND DETERMINATION OF RATIONAL VALUES OF SKIN FAT PARAMETERS FOR TOP SHOES BASED ON ESTER
Authors: Mahammadieva Hilola , Shamsieva Mahbuba
Published: December 2021

The article presents the results of research to determine the optimal parameters of the process of fattening the skin using a full-factor experiment. According to Cochran's criterion, the deviations in the case under study turned out to be uniform.