bluuebunny/crossref_metadata_2025 huggingface dataset:
Термодинамические свойства жидкого цезия: поиск аномалий
Authors: Фокин Л.Р. , Кулямина Е.Ю.
Published: October 2021

The polymorphism of liquid cesium at atmospheric pressure in the temperature range of ~ 590 K in the form of a second-order phase transition, announced in the late 90s, is not confirmed in new experimental works and in computer simulations of its properties. At the same time, the question whether the change in the properties of liquid cesium with a decrease or increase in density up to two times is monotonous or is accompanied by various anomalies needs further research.
Рентгеновский детектор на основе CdZnTe в режиме поперечной и продольной фотопроводимости
Authors: Дикаев Ю.М. , Кудряшов А.А.
Published: October 2021

The work considers "transverse" and "longitudinal" photoconductivity modes, regarding the direction of radiation, photoconductivity in semiconductor detectors of CdZnTe. Mathematical calculations were made from the representation of the internal area of the detector in the form of radiation absorption sites. The results of the calculations are compared with experimentally measured photocurrent of the detector with a cross section of 2x2 mm CdZnTe from the direction of its radiation by X-ray. From the ratio of photocurrents in the range of X-ray radiation energies 35-72 keV for these two cases, a linear coefficient of X-ray absorption by the CdZnTe detector is determined.
ASSESSMENT OF THE THERMAL BALANCE IN THE THERMAL NEUTRALIZER TO REDUCE THE TOXICITY OF EXHAUST GASES
Authors:   Stavropol State Agrarian University, Baganov Nikolay A. , Alekseyenko Vitaliy A. , Sidel’nikov Dmitriy A.
Published: October 2021

According to statistics, the share of automotive equipment accounts for up to 60 percent of harmful emissions. Gasoline engines play an important role in the pollution of the air basin. In the areas of operation of vehicles, there is an increase in the concentration of toxic substances. (Research purpose) The research purpose is in creating an effective means of cleaning exhaust gases, which has an increased resource and little impact on the power and fuel-economic indicators of the engine, and studying the processes occurring in thermal neutralizers, for their subsequent use on mobile agricultural and industrial equipment. (Materials and methods) Authors used the calculating method for the main indicators according to the method of thermal calculation of the internal combustion engine. The article identifies and analyzes the most significant processes in the device for reducing toxicity, established their relationship with temperature and the possibility of using them in optimizing the device. (Results and discussion) Authors performed calculations of heat losses in the thermal neutralizer at different thicknesses of the thermal insulation layer for different operating conditions. (Conclusions) Based on the analysis of literature sources and conducted research, it was found that tractor engines play a large role in the pollution of the air basin. The study of the features of various exhaust gas treatment systems has shown that the development of a device that combines the functions of a thermal neutralizer has become promising. According to the equations, the heat losses in the thermal neutralizer were calculated at different thicknesses of the thermal insulation layer for different operating conditions. As the calculations show, an increase in the thickness of the thermal insulation over 10 millimeters seems impractical because further reduction in heat loss occurs slightly, while increasing the size and cost of the structure.
ANALYTICAL ASSESSMENT OF WEAR OF THE WORKING SURFACE OF SCREW DEVICES WITH COMPOSITE COATING
Authors:   Voronezh State Technical University, Zhachkin Sergey Yu. , Pen’kov Nikita A. ,   Military Training and Research Center of the Air Force "Air Force Academy named  after Professor N. E. Zhukovsky and Yu. A. Gagarin", Sidorkin Oleg A. , Zadorozhniy Roman N. ,   Federal Scientific Agroengineering Center VIM, Strunkin Pavel V. ,   Voronezh Polytechnic Technical School
Published: October 2021

Equipment for the production and transportation of bulk agricultural materials operates under extremely difficult operating conditions, is exposed to abrasive particles of the processed material. Such working conditions lead to changes in operational properties, deterioration of the technical condition of the equipment and the occurrence of malfunctions, which are expressed in changes in the original shapes, sizes, weight, structure of the material and mechanical properties. (Research purpose) The research purpose is to predict the performance of composite coatings using a mathematical apparatus that adequately describes the process of abrasive wear of the contact surface of the grain conveyor auger when working with abrasive particles of the processed material. (Materials and methods) As a sample for modeling the process of surface wear, authors chose a screw conveyor, the working screw surface of which is treated with plasma spraying in order to increase its wear resistance. The screw works in an abrasive environment, without touching by the contact surface with other bodies. External abrasive wear is characterized by the presence of scratches or cavities oriented in the direction of sliding. The article presents the model of abrasive wear of the grain conveyor screw and numerical methods of its calculation. (Results and discussion) The article describes a method for assessing the wear resistance of restored shafts by determining the wear intensity of the surface of the part and the energy intensity of linear wear for parts with non-stationary geometry. The article presents a method for calculating the shape and contact area of composite particles with the recovered surface. The obtained expression is valid when ensuring the deviation of the screw speed during the test from the nominal one, not exceeding 10 percent of the set value, the error of applying the load on the screw does not exceed 5 percent. (Conclusions) As a result of the study, the article presents the dependence of the intensity of abrasive wear as a function of the geometry of the surface to be restored and the density of the applied material.
DEVELOPMENT OF AN ENERGY PLANT FOR WASTE RECYCLING AND ENERGY SUPPLY OF POULTRY FARMS
Authors:   Bashkir State Agrarian University, Gabitov Ildar I. , Baltikov Denis F. , Insafutdinov Samat Z.
Published: October 2021

The article considers the actual problem of chicken manure disposal at poultry farms, which is an urgent issue for any poultry farm, due to the fact that poultry manure is a hazardous waste. The paper presents an alternative method for disposing of poultry manure and generating heat and electricity using a gas generator set. (Research purpose) The research purpose is in determining the possibility of using poultry manure as fuel in a gas-generating plant to reduce the cost of energy supply to poultry farms. (Materials and methods) Authors used research methods based on the application of standard methods, while the object of research was the energy supply of a poultry farm. The article presents the mathematical model for determining the parameters of a gas generator set. (Results and discussion) The article presents a developed technology for recycling poultry manure with simultaneous production of heat and electricity. The results of experimental studies of the operation of the gas generator set on bird droppings presented in the form of graphs. The characteristics of the operation of the gas generator set on poultry manure were determined, as well as the composition of the pyrolysis gas: CO – 25 percent, CO2 – 18, CH – 17 percent; the pyrolysis temperature was about 700-800 degrees Celsius. Taking into account the characteristics of poultry manure as fuel, an experimental sample of a gas generator set was constructed. (Conclusions) The developed technology for the disposal of poultry manure solves the environmental problem of poultry farms, reduces the economic costs of waste disposal. During recycling, additional energy is is directed to the needs of production.
COMPREHENSIVE ANALYSIS OF FUEL AND LUBRICANTS ECONOMY SYSTEMS IN THE OPERATION OF MACHINERY
Authors:   Federal Scientific Agroengineering Center VIM, Gerasimov Valeriy S. , Ignatov Vladimir I. , Mishina Zoya N. , Andreyeva Dar’ya V.
Published: October 2021

The agro-industrial complex of Russia is one of the main consumers of petroleum products. The volume of work in agriculture, the loading of equipment when performing field and transport work place increased demands on the quality of fuels and lubricants. (Research purpose) The research purpose is in compilation of a comprehensive analysis of domestic and foreign sources to obtain detailed characteristics of fuel and lubricants economy systems. (Materials and methods) The article presents the methods of economical use of fuel and lubricants based on domestic and foreign sources, information about the quality and range of oils used in the agro-industrial complex of Russia. The article considers the basics of rational use of waste materials, ways to clean them from contamination, presented technologies and technical means for the recovery (regeneration) of waste oils. (Results and discussion) Currently existing fuel and lubricant saving systems do not fully meet the requirements of resource saving and environmental standards. The use of recommendations, guidelines, regulatory and technical documentation on this problem in the developed system of fuel and lubricants economy will allow consumers of the agro-industrial complex to reduce fuel costs by 7-25 percent; reduce friction losses by 3-5 times; restore the geometry of worn friction surfaces; increase the engine power by 5-10 percent; extend the life of the engine and mechanisms by 8-12 percent. (Conclusions) The developed regulatory framework, theoretical and methodological provisions will allow the management departments of the agro-industrial complex at the regional (district) level and large agricultural enterprises to develop and implement scientifically based solutions for organizing the processes of saving fuel and lubricants during the operation of agricultural machines and aggregates.
STUDYING OF THE EFFECT OF WATER-FUEL MIXTURE ON OPERATIONAL PARAMETERS OF A DIESEL
Authors:   Military educational scientific center of air forces «Air Force Academy named after Professor N.E. Zhukovsky and Y.A. Gagarin», Borisov Sergey V. , Lomovskikh Aleksandr E. , Prilepin Oleg E. , Mamatkazin Timur R. , Dunayev Anatoliy V. ,   Federal Scientific Agroengineering Center VIM
Published: October 2021

Improving the parameters of diesel engines is an urgent task. Work has been carried out to significantly reduce the consumption of their fuel with the introduction of water dispersions into the fuel. Currently, water-fuel emulsions with exotic emulsifiers are mainly tested. (Research purpose) The research purpose is in creation of a water-fuel emulsion without an emulsifier with a simple installation and identifying the influence of the composition and quality of this WFE on the performance of the YaMZ-236 diesel engine. (Materials and methods) The article presents a plant for the preparation of a "rough" water- fuel mixture from diesel fuel according to GOST 32511-2013 and distilled water according to GOST 6709. Authors conducted standard bench tests at the KI-5540- GOSNITI stand with a YaMZ-236 diesel engine with an upgraded fuel system and performed the control of the smoke content of the exhaust gases with the gas analyzer "AUTOTEST". The dependence of diesel performance indicators on the composition and dispersion of water-fuel emulsions without an emulsifier was studied experimentally with a minimum number of tests, but with the maximum possible combination of the values of three variable factors. (Results and discussion) The influence of various water-fuel emulsions on the performance of the diesel engine was evaluated according to the plan of a full factor experiment, including 20 tests. The second-order regression equations were obtained by mathematical processing of the test results. The feasibility of using water-fuel emulsions for diesel engines was confirmed. By modeling a water-fuel mixture without emulsifiers, there was created an aqueous dispersion with drops up to two micrometers. In the load tests of the diesel engine with it, there was noticed an improvement in its performance. (Conclusions) The introduction of 17-20 percent water dispersion with drops of up to two micrometers into diesel fuel reduced the specific fuel consumption by 18 percent, the smokiness in the K indicator by 20- 22, and in the N indicator by 30-35 percent.
Rapid production of SaCas9 in plant-based cell-free lysate for activity testing
Authors: Schiermeyer Andreas , Cerda-Bennasser Pedro , Schmelter Thomas , Huang Xin , Christou Paul , Schillberg Stefan
Published: October 2021

Cas9 nucleases have become the most versatile tool for genome editing
projects in a broad range of organisms. The recombinant production of
Cas9 nuclease is desirable for in vitro activity assays or the
preparation of ribonucleoproteins (RNPs) for DNA-free genome editing
approaches. For the rapid production of Cas9, we explored the use of a
recently established cell-free lysate from tobacco (Nicotiana tabacum
L.) BY-2 cells. Using this system, the 130-kDa Cas9 nuclease from
Staphylococcus aureus (SaCas9) was produced and subsequently purified
via affinity chromatography. The purified apoenzyme was supplemented
with ten different sgRNAs, and the nuclease activity was confirmed by
the linearization of plasmid DNA containing cloned DNA target sequences.
Diaphragmatic eventration case report: a possible sequelae of past tuberculosis infection.
Authors: Paudel Kusum , Dahal Sushil
Published: October 2021

Diaphragm eventration, an abnormal elevation of the dome of the
diaphragm, could be congenital or acquired. Acquired cases usually occur
after an episode of trauma to the phrenic nerve, or may be attributed to
infectious and inflammatory causes. We report an acquired eventration
with a probable association with tuberculosis infection.
Penerapan Model Pembelajaran Kooperatif Tipe TGT (Teams Games Tournament) Berbantuan Cara Sengkedan dan Metode Bernyanyi untuk Meningkatkan Hasil Belajar Matematika Materi Faktor dan Kelipatan
Authors: Suryani Amrin , Suarjana I Made , Artini Happy
Published: October 2021

Penelitian ini bertujuan untuk meningkatkan hasil belajar dalam remidiasi Matematika materi faktor dan kelipatan melalui penerapan model pembelajaran Teams Games Tournament (TGT) berbantuan cara sengkedan dan metode bernyanyi siswa kelas IVC SD N 3 Banjar Jawa tahun pelajaran 2018/2019. Penelitian Tindakan Kelas dilakukan dalam dua siklus. Subjek penelitiam adalah siswa kelas IVC semester II tahun pelajaran 2018/2019 di SD N 3 Banjar Jawa sebanyak 32 siswa. Data hasil belajar siswa dikumpulkan setiap akhir siklus. Pengumpulan data hasil belajar menggunakan tes tertulis bentu pilihan ganda, isian, dan uraian. Data yang dikumpulkan dianalisis menggunakan analisis deskriptif kuantitatif yang sudah ditentukan sebelumnya. Hasil penelitian hasil belajar siswa, pada siklus 1 ketuntasan klasikal sebesar 43,75% dan pada siklus 2 ketuntasan klasikal hasil belajar siswa sebesar 71,875%. Ketuntasan klasikal hasil belajar siswa mengalami peningkatan sebesar 28,125 %. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran TGT dan metode bernyanyi dapat meningkatkan hasil belajar kelas IVC SD N 3 Banjar Jawa dalam remidiasi Matematika materi faktor dan kelipatan tahun pelajaran 2018/2019.
Perubahan lebar interkaninus rahang atas dengan penggunaan sekrup ekspansi pada jarak waktu aktivasi yang berbeda

Changes in the maxillary intercanine width during the use of expansion screws at different activation intervals

Authors: Malik Nada Qisthina , Latif Deni Sumantri , Syiarudin Elih
Published: October 2021

ABSTRAKPendahuluan: Penggunaan sekrup ekspansi pada ortodonti lepasan dilakukan untuk melebarkan lengkung gigi. Lebar lengkung gigi dapat diukur salah satunya dengan cara menghitung lebar interkaninus. Tujuan dari penelitian ini adalah untuk mengetahui evaluasi penggunaan sekrup ekspansi terhadap perubahan lebar interkaninus rahang atas berdasarkan kelompok waktu aktivasi. Metode: Metode penelitian yang digunakan adalah analitik. Teknik pengambilan sampel menggunakan purposive sampling.  Hasil:. Berdasarkan hasil perhitungan analitik nilai t stat memiliki nilai yang lebih kecil dari nilai t Critical two-tail, maka didapatkan hasil yang menunjukan bahwa terdapat perbedaan yang bermakna dari perubahan lebar interkaninus pada dua kelompok waktu tersebut. Simpulan: Terdapat perubahan lebar interkaninus yang signifikan pada kedua kelompok waktu aktivasi.Kata kunci: sekrup ekspansi, ortodonti lepasan, lebar interkaninus, rahang atasABSTRACTIntroduction: The use of expansion screws in removable orthodontics is used to widen the dental arch. The dental arch width can be measured one of them by calculating the intercanine width. The aim of this study was to evaluation the use of expansion screws for changes in maxillary intercanine width based on activation time groups. Method: This research used analytic method. The sampling technique used purposive sampling. Results: Based on the results of analytical calculations, the value of t stat has a value smaller than t Critical two-tail, the results obtained indicate that there are significant differences in changes in intercanine width in the two time groups. Conclusion: There was a significant change in intercanine width in both groups of activation time. Keywords: expansion screws, removable orthodontics, intercanine width, maxillary
SLOPE STABILITY ANALYSIS FOR EARTH DAMS USING (GEO-SLOPE/W)
Authors: M Abbas Jasim , Zainab Ali Mutiny
Published: October 2021

The study of slope stability is important in the design and construction of the earth dams under influence of special states. Some factors affect on the slope stability for the earth dams such as change the water level in the reservoir, dam configuration, material properties..etc. In this study, the factor of safety of upstream slope stability for number of exist earth dams has been assessed. To achieve the objective of this study, Geo-SLOPE/W program that based on limit equilibrium methods was used. Taking into account the case of dry condition and gradually rise of water level in upstream part for these dams. It can be seems that the slope stability of the earth dams increased in case of dry condition. In addition, the slope stability increased when the water reach to maximum value.
Gestur Tangan Manusia dalam Karya Fotografi Seni
Authors: Wibowo Arif Ardy , Astuti Dina
Published: October 2021

Tangan sebagai bagian tubuh manusia yang sering digunakan sebagai alat komunikasi dan menghasilkan beragam pose. Manusia secara alami terbiasa menggunakan tangan untuk melakukan komunikasi dan ketika bergerak, tangan membentuk sebuah gestur tertentu. Gestur adalah sebuah gerakan yang bertujuan memberikan isyarat. Isyarat adalah untuk memahami pikiran seseorang atau mengkomunikasikan perasaan. Metode dalam penciptaan ini diawali dengan penggalian ide dan  konsep yang dilanjutkan dengan studi referensi dilanjutkan dengan penjelajahan eksplorasi dan eksekusi foto. Penciptaan ini menghasilkan karya foto yang dibagi menjadi 5 kategori yakni Bahagia, Kesedihan, Kegelisahan, Marah dan Religius. Pemilihan  kelima kategori ini dirasa oleh penulis cukup mewakili dinamika kehidupan manusia. Karya dalam penciptaan ini memberikan pengetahuan  tambahan mengenai tangan. Tangan yang pada umumnya dikaitkan dengan peran sehari-hari ternyata dapat memiliki gestur  yang bernilai pesan tertentu di balik visualnya.
ANALISIS STRUCTURAL EQUATION MODELING (SEM) FAKTOR-FAKTOR YANG MEMENGARUHI PERILAKU BULLYING REMAJA AWAL DI DENPASAR
Authors: Putri Gusti Ayu Rusma Windiyana , Kurniasari Ni Made Dian , Widarsa I Ketut Tangking
Published: October 2021

ABSTRAK

Bullying merupakan perilaku negatif yang dapat menyebabkan masalah kesehatan mental. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang memengaruhi perilaku bullying remaja awal di Denpasar. Jenis penelitian ini adalah analitik kuantitatif dengan desain cross-sectional. Sampel penelitian ini yaitu siswa dan siswi kelas VII dan VIII sejumlah 279, dipilih dengan multistage random sampling. Data yang dikumpulkan adalah karakteristik responden, perilaku bullying, pengetahuan, sikap, konsep diri, stress akademik, situasi keluarga, konformitas teman sebaya, iklim sekolah, dan media menggunakan kuesioner dalam jaringan (daring) kobotoolbox. Data dianalisis menggunakan metode SEM. Hasil penelitian menunjukan bahwa prevalensi perilaku bullying remaja awal di Denpasar adalah 83,15% dengan kategori rendah. Bullying verbal paling sering dilakukan remaja awal dengan kategori rendah (71,68%) dan kategori tinggi (1,43%). Bullying psikologis dilakukan remaja awal dengan kategori rendah (46,95%) dan bullying fisik dengan kategori rendah (44,09%). Faktor yang signifikan memengaruhi perilaku bullying adalah situasi keluarga (total efek= -0,20), konformitas teman sebaya (total efek=0,17), iklim sekolah (total efek= -0,18), dan media (total efek=2,14). Perilaku bullying remaja awal di Kota Denpasar masih relatif tinggi, perlu adanya dukungan dari berbagai sektor untuk dapat mengontrol perilaku dan menurunkan prevalensi perilaku bullying.

Kata Kunci: Bullying, Faktor Bullying, Remaja Awal, SEM  ABSTRACT

Bullying is a negative behavior that can cause mental health problems. This study aims to determine the factors that affecting the bullying behavior of young adolescents in Denpasar City. This is quantitative analytic research with cross-sectional design. The sample of this research is students of class VII and VIII, 279 young adolescents were selected by multistage random sampling. Data collected were respondents' characteristics, bullying behavior, knowledge, attitudes, self-concept, academic stress, family situations, peer conformity, school climate, and the media using an online questionnaire kobotoolbox. The results showed that the prevalence of bullying behavior young adolescents in Denpasar is 83,15% with low category. Verbal bullying was highest in low category (71.68%) and high category (1.43%) followed by psychological bullying in low category (46.95%) and physical bullying in low category (44.09%). Significant factors influencing young adolescent bullying behavior are family situation (total effect = -0,20), peer conformity (total effect = 0.17), school climate (total effect = -0.18), and media (total effect = 2.14). Bullying behavior of young adolescents in Denpasar City is still relatively high, support from various sectors is required to control behavior and reduce the prevalence of bullying behavior.

Key Words: Bullying, Bullying Factors, Young Adolescent, SEM
PENGARUH BRAND IMAGE DAN BRAND AWARENESS LAZADA TERHADAP KEPUTUSAN PEMBELIAN ONLINE
Authors: Astuti Ni Luh Gde Sari Dewi , Widhyadanta I Gde Dirga Surya Arya , Sari Retno Juwita
Published: October 2021

During the pandemic, the government regulates restrictions on activities in public places or facilities. Including buying daily necessities. As a result of this restriction, people make purchases online to buy all household needs as an anticipation and inventory measure. This study aims to determine the effect of brand image and brand awareness on purchasing decisions on consumers who shop online using the Lazada marketplace. The method of collecting data through a google form questionnaire was distributed to 100 respondents to consumers who shop at Lazada. This study found that brand image has a positive and significant effect on purchasing decisions. Brand awareness has a positive and significant effect on purchasing decisions. Brand image and brand awareness have a simultaneous and positive effect on purchasing decisions.
The Relationship Among Economic Structure, Sectoral Workforce, and Community Welfare in Bali Province
Authors: Yasa I Nyoman Mahendra
Published: October 2021

Economic performance that can be achieved by regions cannot be separated from the influence of sectoral economic policies. The difference in economic performance, particularly the economic growth achieved by each region, affected to the inequality in development, which is reflected in the structure of the regional economy. The purpose of this study is to analyze the effect of changes in the economic structure on the structure of sectoral employment and the welfare of the people in Bali Province. Data were analyzed by path analysis. The results shows that the changes in economic structure have a positive and significant effect on the structure of employment. Partially, the changes in the economic structure and the structure of employment has a negative and significant effect on people's welfare. Changes in the economic structure have an indirect effect on people's welfare through the structure of employment in Bali Province.
Seberapa Efektif Kualitas Auditor yang Memoderasi Hubungan Antara Rasio Keuangan dan Kesulitan Keuangan
Authors: Izzalqurny Tomy Rizky
Published: October 2021

Penelitian ini bertujuan untuk mengetahui pengaruh rasio keuangan terhadap financial distress pada periode selanjutnya, dan kualitas auditor dapat mengurangi pengaruh rasio keuangan yang rendah terhadap financial distress pada periode selanjutnya. Populasi dalam penelitian ini adalah perusahaan manufaktur yang telah mereview laporan keuangan tahun 2016 dan 2017. Dalam pemilihan sampel penelitian menggunakan metode purposive sampling, dengan jumlah sampel penelitian berjumlah 137 firm years. Variabel dependennya adalah financial distress. Variabel independen dibagi menjadi tiga variabel profitabilitas, leverage, dan likuiditas. Variabel moderasi adalah kualitas auditor. Dalam penelitian ini pengujian hipotesis menggunakan model analisis regresi moderasi (MRA) yang diantaranya menggunakan metode analisis regresi berjenjang. Penelitian ini memberikan bukti bahwa financial distress pada periode berikutnya dipengaruhi oleh profitabilitas dan leverage, serta tidak membuktikan bahwa financial distress pada periode berikutnya dapat dimoderasi oleh kualitas auditor.
PENERIMAAN DIRI DARI KEGAGALAN AKADEMIK PEREMPUAN PERFEKSIONISME
Authors: Tresnani Lia Dwi , Casmini Casmini
Published: October 2021

This research aims to describe how academic perfectionism women rise from failure. This research uses a qualitative method with a case study approach. The number of participants in this study was four people obtained by purposive sampling technique with the characteristics of middle-aged adult women, the type of perfection in completing academic tasks, had experienced academic failure, and were willing to become research participants. In-depth interviews and observations collect data. This study indicates that educated perfectionist women always try to achieve maximum results io doing academic work. They also always have high targets that must be completed in their academic life. When they experience academic failures, at first, they tend to be sad, but after that, they can get up quickly. That is because they have a good self-concept of achievement, emotional maturity, belief in God's destiny, and a sense of optimism in themselves, and they also get reinforced motivation through social support from close relatives.
The training needs of primary school leaders in Al-Kharj governorate in light of the transformational leadership requirements: الاحتياجات التدريبية لدى قائدي المدارس الابتدائية بمحافظة الخرج في ضوء متطلبات القيادة التحويلية
Authors: Saleh Hadi Sharie Al-Hababi Saleh Hadi Sharie Al-Hababi
Published: October 2021

The study aimed to determine the training needs of primary school leaders in Al-Kharj governorate in light of the transformational leadership requirements from their point of view regarding the dimensions of (leadership attractiveness - inspirational communication - mental stimulation - personal appreciation). The researcher used the descriptive survey approach. It was applied on a sample of (44) Leader in primary schools in Al-Kharj governorate and the tool was a questionnaire. The results of the study revealed; The tool obtained an overall mean (3.38 out of 4) at the dimensional level; The leadership attractiveness dimension got the highest average (3.50 out of 4), then after inspirational communication with an average (3.40 out of 4), then after personal appreciation with an average (3.37 out of 4), and finally after mental stimulation with an average (3.26 out of 4), all of them rated as need (big); based on the results of the study, the researcher presented a set of recommendations and proposals.
Interpretation of Boundaries Treaties in the Light of General Principles of International Boundaries: تفسير المعاهدات الحدودية في ضوء المبادئ العامة للحدود الدولية
Authors: Nida'a Nader Qumsieh Nida'a Nader Qumsieh
Published: October 2021

This paper sheds the light on the general rules for interpretation of intentional treaties, and the scope of their application on boundaries treaties. It shows the reflection of stability and finality of boundaries and subsequent conduct principles, as well as rules of equity on interpretation of boundaries treaties. This study also makes good explanation on the legal nature of boundaries treaties, and how this nature was a reason for excluding boundaries treaties from the application of fundamental change of circumstance term, and excluding boundaries treaties form application of Vienna rules of succession of state. In ends that the scope of application of general rules for interpretation of treaties is limited to adhere with general principles of international boundaries, in particular principle of stability of boundaries and principle of subsequent conduct. It explains how rules of equity can be used to change boundaries delimitated by treaties. This paper ascertains that boundaries treaties where not a subject for legal disagreement when discussing Vienna Convention of Law of treaties 1969, and Vienna Convention on Succession of States in respect of Treaties 1978, and it was agreed to exclude these treaties form the terms of these treaties.
The Role of Knowledge Management in Improving Performance of Human Resources – A Field Study on the General Organization for Technical and Vocational Training, Riyadh Region –: دور إدارة المعرفة في تحسين أداء الموارد البشرية – دراسة ميدانية على المؤسسة العامة للتدريب التقني والمهني بمنطقة الرياض –
Authors: Ghadair Abdurahman Alsaqhan, Wala Abdullah Almostadi Ghadair Abdurahman Alsaqhan, Wala Abdullah Almostadi
Published: October 2021

This study aimed to identify how knowledge management plays a role in improving human resources, it also aimed to identify the realities of knowledge updating of the institution, and knowledge disseminating and distributing among workers. The research sample consists of the employees of the top departments 11.419 of the general organization for vocational training in three departments: the national training department, the general administration of quality and training, the general administration for development and curriculum design, in the Riyadh region, the study used a descriptive and analytical approach to address the research subject. knowledge management has been also mentioned as an important and positive impact on the efficiency of the organization's internal processes and the quality of performance. The results have been as follows: there is a positive statistical significant correlation between the knowledge diagnosis and measuring the quality of human resource performance, the value of the correlation between them was (0.577), at a significant level (0.00), which is a value less than (0.01),there is a positive statistical significant correlation between updating knowledge and measuring the quality of human resources performance, as the value of the correlation between them reached (0.682), at a significant level (0.00), which is a value less than (0.01),there is a positive statistical significant correlation between the disseminating and distributing of knowledge and the measuring of the quality of human resource performance (0.705), at a significant level (0.00), which is a value less than (0.01), as the higher the diagnosis of updating, disseminating and distributing knowledge, the higher the quality of human resource performance. The most important recommendations of researchers: The necessity for the institution to have the ability to identify its employees who possess knowledge related to its fields of activities. The necessity for the institution to provide material and moral rewards to its employees for their efforts to gain new knowledge that supports its activities. Reliance on objective and fair standards in order to truly reveal the levels of employee performance, which leads to avoiding problems among workers.
The degree to which kindergarten curricula in the Kingdom of Saudi Arabia include some concepts of digital citizenship in light of the requirements of the digital age: درجة تضمين مناهج رياض الأطفال في المملكة العربية السعودية لبعض مفاهيم المواطنة الرقمية في ضوء متطلبات العصر الرقمي
Authors: Remeen Abbas Ghandurh Remeen Abbas Ghandurh
Published: October 2021

The study aimed to determine the degree to which kindergarten curricula in the Kingdom of Saudi Arabia include some concepts of digital citizenship in light of the digital age requirements. To achieve this goal, the researcher used the descriptive and analytical approach to the study sample represented in 8 books from the kindergarten curricula in Saudi Arabia. A list of digital citizenship concepts, needed in light of the digital age, was built based on a review of educational literature and previous studies related to the topic. The list included a total of 30 indicators categorised into 6 areas: digital behavior, digital communication, digital knowledge, digital health and safety, digital law, and digital security. The researcher analyzed the content based on the list of standards and concluded that the inclusion of digital citizenship concepts was very limited or almost absent in the studied sample. Inclusion was highest for digital knowledge and digital health and safety at 50% for each area, but with only two repetitions. Other areas, however, were not included at all (0%). The most important recommendation of the study is to highlight the need for specialists in kindergarten curricula to familiarize themselves with the current global standards of curricula, and to include the most important and relevant concepts of the digital age, including digital citizenship. It is also necessary to review the weaknesses and the lack of kindergarten books on the self-learning approach in the curriculum developed in Saudi Arabia, as well as to strengthen the available advantages.
Strategic intelligence and its relationship to decision-making among administrative and academic leaderships: الذَّكاء الاستراتيجيُّ وعلاقتُه باتِّخاذ القرار لدى القياداتِ الإداريَّة والأكاديميَّة
Authors: ALShaimaa Khalid ALZahrani, Ghuzayyil Saad ALEssa ALShaimaa Khalid ALZahrani, Ghuzayyil Saad ALEssa
Published: October 2021

The study aimed to identify the requirements of applying strategic intelligence, its importance, and its role in the administrative decision-making process, the extent of the relationship between it's elements in decision-making processes, using the method Descriptive. The study sample reach (201) from all the administrative and academic leaderships in three government agencies (the National Water Company, the General Organization for Technical and Vocational Training, and KSU) in Riyadh. The results showed approval of the proposed requirements for applying strategic intelligence with average (4.13), which the most important of which were the training courses that help the administration in improving the application of strategic intelligence also approval of its role in the administrative decision-making with average (4.1) in addition the existence of a relationship between the elements of strategic intelligence in the administrative decision-making process, also there are no statistically significant differences between strategic intelligence and the characteristics of the study sample; According to academic qualification and work point, while there are statistically significant differences in the requirements of applying strategic intelligence; According to qualification, employer. finally study recommended holding training courses for leaderships. On the concepts of strategic intelligence and its importance in making decision.
The Degree of Availability of Critical Thinking Skills among Arabic Language Teachers in Directorates Education in Karak Governorate, Jordan, from their Point of View: درجة توفر مهارات التفكير الناقد لدى معلمي اللغة العربية في مديريات التربية والتعليم في محافظة الكرك بالأردن من وجهة نظرهم
Authors: Sudgeh Awad Falaah Tarawneh Sudgeh Awad Falaah Tarawneh
Published: October 2021

The current study aimed at identify the degree of availability of critical thinking skills among Arabic language teachers in the education directorates in Karak Governorate, Jordan, from their point of view, and to reveal the differences in that according to the variables of gender, academic qualification and the number of years of experience. and the researcher prepared a questionnaire consisting of (48) items distributed on (7) skills, namely: (analysis, induction, interpretation, conclusion), Calendar), and the indications for their validity and reliability were verified. Where a stratified random sample of (193) teachers was chosen from among the teachers of the Arabic language in the directorates of education in the governorate of Karak, The study found that the degree of availability of critical thinking skills among Arabic language teachers from their point of view was medium, with an arithmetic mean (3.42) and The skill of "deduction" came first, with an arithmetic average of (3.73), And with a high degree, while the “evaluation” skill came in the last place, with an arithmetic average of (2.93), and a medium degree. It also indicated that there are no statistically significant differences at the level of significance (α≤0.05) in the degree of availability of thinking skills. The critic among Arabic language teachers is attributed to gender, while it was found that there are statistically significant differences attributable to academic qualification and in favor of higher qualification (postgraduate studies), and the existence of statistically significant differences due to years of experience and in favor of those with higher experience.
The reality of implementing professional development programs for Jeddah Secondary Public Schools Female teachers and means to develop them in light of KSA’s 2030 Vision from Schools Leadership Supervisory Perspectives: واقع تطبيق برامج التنمية المهنية لدى قائدات المدارس الثانوية الحكومية في جدة وسبل تطويرها في ضوء رؤية 2030 من وجهة نظر مشرفات القيادة المدرسية
Authors: Alya Abdullah Al- Saedy Alya Abdullah Al- Saedy
Published: October 2021

This study aimed to discover the status of implementing the professional development programs for female school leaders in secondary public schools in Jeddah from the perspectives of school leadership supervisors as well as the means of improving these programs in light of 2030 Vision. The study adopted the mixed method research design and utilized the questionnaire as a tool to collect data from a sample of (22) school leaders’ supervisors. Findings revealed that secondary school leaders in Jeddah do apply professional development programs in relation to making decision and strategic planning domains in light of 2030 Vision at a moderate level. Also, findings revealed that the effectiveness of professional development programs for educational leaders at schools is manifested in these programs being participatory, have clear and systematic goals, continuous, enriching and sustainable. The study concluded with a recommendation to provide workshops and training programs to support the school leaders, and to encourage and motivate school leaders to continue to follow up on strategic planning practices on monthly and annual basis.
Psychological safety and its relationship to smartphone use addiction among high school students in Jazan educational administration: الأمن النفسي وعلاقته بإدمان استخدام الهواتف الذكية لدى طالبات المرحلة الثانوية في إدارة تعليم جازان
Authors: Amani Mohammad Abdo Hakamy, Ikhlas Abdul Raqib Salam Al-Shar Amani Mohammad Abdo Hakamy, Ikhlas Abdul Raqib Salam Al-Shar
Published: October 2021

The study aimed to discover the relationship between psychological safety and smartphone among high school students in the Jazan Educational administration and to predict smartphone use addiction through the psychological safety among high school students in the Jazan Educational administration. and the researcher used the relational-descriptive method, and the Psychological Safety Scale was used by (Shukair: 2005), and smartphone Addiction Scale by (Alosaimai et, al.: 2016).The study sample consisted of (430) female students from the secondary stage of the Jazan Educational administration, they were randomly selected from the three general secondary grades of the schools affiliated to Jazan Educational Administration Where the arithmetic mean of their ages (16.074), The results indicated the high level of psychological safety among the study sample of high school students, and the high level of smartphone use addiction among secondary school students. It also indicated that there is a negative correlation between psychological safety and smartphone use addiction among secondary school students at the significance level (0.01), and the possibility of predicting smartphone use addiction among secondary school students through the dimensions of psychological safety at the level of significance (0.01) through each degree of (the individual mood, the individual composition, and his vision for the future). The study recommends educating mothers and fathers about the correct educational methods in dealing with cases of children's smartphone addiction.
The dimensions and practices of talent management and its role in enhancing the efficiency and effectiveness of human resources management: A theoretical analytical study: أبعاد وممارسات إدارة المواهب ودورها في تعزيز كفاءة وفاعلية إدارة الموارد البشرية: دراسة تحليلية نظرية
Authors: Fatima Mohammad Al- Rakhis, Maha Mohammad Al- Rakhis Fatima Mohammad Al- Rakhis, Maha Mohammad Al- Rakhis
Published: October 2021

The study aimed to examine the dimensions and practices of talent management and its role in enhancing the efficiency and effectiveness of human resource management, a theoretical analytical study, and by attempting to answer the main question of the study and the sub- questions of the research problem, and by relying on the descriptive, analytical and theoretical approach of previous literature in this field through four hypotheses that were examined. The results of the study revealed that there is a relationship between talent management practices and the efficiency and effectiveness of human resources management, in addition to a relationship between talent management practices in terms of discovery, retention and development of talented people and the efficiency and effectiveness of human resources management and the validation of the four hypotheses. Talents according to a long- term strategic plan that focuses on performance indicators that increase added value and support institutional sustainability, while directing talent management practices to enhance the efficiency and effectiveness of human resource management performance.
Indicators of Construct Validity and Reliability of a Scale of Quality of E- learning in Saudi universities – A Psychometric Study - Case of Tabuk University –: دلالات الصدق والثبات لمقياس جودة التعلم الإلكتروني في الجامعات السعودية – دراسة سيكومترية - جامعة تبوك أنموذجاً –
Authors: Eman salman Al- Atawi, Shahir Khalid Suliman Eman salman Al- Atawi, Shahir Khalid Suliman
Published: October 2021

This study aimed to verify the construct validity and reliability of a scale of assessment quality of learning in Saudi universities, a study on a sample of Tabuk University students. To achieve this goal, the descriptive and analytical approach was used where a questionnaire was developed consisting of (32) statements distributed in five axes: content, technology and support, user interface, evaluation tools and methods, and safety. The questionnaire was applied electronically to a random stratified sample of (275) students, and was classified according to specialization and gender. The students’ responses were used to answer the study questions related to examining the scaling properties, analyzing the descriptive statistics of assessment practices and comparing the mean values according to nominal variables by using descriptive statistics, confirmatory factor analysis and two- way ANOVA. The study provided indices of the reliability and validity of the scale. The results indicated that the quality of e- learning was average according to Likert's five- point grading used in the scale, as most of the averages for expressions were statistically higher than the hypothetical mean of grading, and there were no statistically significant differences in the arithmetic averages of the sample estimates due to specialization and gender. Some recommendations were given at the end of the study, such as: using the proposed scale in diagnosing the reality of e- learning in Saudi universities, in order to improve and develop this type of learning, which we need, especially in light of the Corona pandemic.
The Role of School Administration in Developing Creativity and Its Obstacles as Perceived by School Principals in Government Schools in the Directorate of University District: دور الإدارة المدرسية في تنمية الإبداع ومعيقاته من وجهة نظر مديري ومديرات المدارس الحكومية في مديرية لواء الجامعة
Authors: Sana Said Bdair Sana Said Bdair
Published: October 2021

This study aims at identifying the role of school administration in developing creativity and its obstacles as perceived by school principals in government schools in the directorate of University District. This may be attributed to variables of gender, academic qualification, years of experience, and school level. The researcher has used the descriptive analytical method through employing the use of a questionnaire. This questionnaire has been made of 36 sections. 28 sections were designed to identify the role of school administration in developing creativity in the government schools in the directorate of the university district, and 8 to identify the obstacles that face the school’s administration. A sample of 55 male and female principals in government schools in the directorate of the university district have been chosen for the academic year 2019/2020. The results of the study showed that the application of creativity by the school principals in government schools have an overall average of (3.5 out of 5), which is rated as high. For the other two main areas, the administration one resulted with an average of (4.03) with a high rate, and for the obstacles area it resulted with (3.68) and was rated as large obstacles. It also has shown that there were no statistically significant differences in the role of school administration in developing creativity in government schools, which might be attributed to variables of academic qualification, years of experience, and school’s level. However, there was a significant difference attributed to the gender variable, and it was in the favor of females. Based on those results, the researcher suggested a number of recommendations for developing creativity and limiting its obstacles at Jordanian Schools and other Arab countries.