bluuebunny/crossref_metadata_2025_split huggingface dataset:
Formation of parents' readiness to organize activities for the physical development of preschoolers in today's realities
Authors: Zamrozevych-Shadrina Svitlana , Khatsaiuk Oxana , Sirenko Romana , Honchar Nataliia , Nesterov Oleksii 
Published: August 2023

Summarizing the results of the analysis of scientific and methodological, special and reference literature, the members of the scientific research group established, that the urgent issue of developing programs (methodology, pedagogical models, organizational and pedagogical conditions, etc.) aimed at forming the readiness of parents to organize events for the comprehensive, harmonious and physical development of preschoolers, taking into account the realities of today, is devoted to an insufficient number of scientific works. This emphasizes the relevance, timeliness and practical component of the chosen direction of scientific research. Theoretically, the research was carried out in accordance with the plan of the initiative scientific project "Physical development of preschoolers").
The main goal of the research is the development of an experimental program for the formation of parents' readiness for the organization of the physical education system of preschoolers in the conditions of martial law. Research methods (at the theoretical level): axiomatic, idealization, historical and logical, descent from concrete, formalization.
As a result of the theoretical study, the members of the scientific research group developed an experimental program for the formation of parents' readiness for the organization of the physical education system of preschoolers in the conditions of martial law. The above-mentioned experimental program has been introduced into the system of physical education of preschoolers of the Communal institution "Preschool educational institution № 18" of the combined type (Kharkiv). Prospects for further research in the chosen direction of scientific research include the organization of a pedagogical experiment to test the above-mentioned experimental program.
To the question regarding the use of means that support initial swimming training
Authors: Mykytchyk O. , Borysov E. 
Published: August 2023

The article, based on the analysis and generalization of these literary sources, gives the attitude of scientists regarding the effectiveness of the use of certain means that support the initial swimming training of children of different ages. Our analysis of the available scientific and methodological literature proved the existence of contradictions in the opinions of modern scientists regarding the expediency of using means that support initial swimming training. The above determined the relevance of the chosen research topic.
Research methods: analysis, comparison, deduction. induction, systematization and generalization of scientific and methodological literature and regulatory and legal documents. Organization of research: the research was conducted during 2023 in accordance with the thematic plan of scientific research of PDAFKiS for 2021-2025 on the topic "Theoretical and methodological foundations of training athletes in Olympic and professional sports" (state registration number 0121U108253). Conclusions. It was found that currently there is a consensus regarding the effectiveness of the use of certain aids that support initial swimming training. Based on the analysis of scientists' opinions, conclusions were made about the feasibility of using aids that support initial swimming training. Experts advise to use foam boards to practice the technique of leg movements; techniques of hand movements - kolobashki; in burn-out, when the child cannot master the "rabbit" movements with his legs - flippers for a long time; when towing, as a movable support, eliminating errors in the position of the head, trunk or in the movement of the limbs - a safety pole; when studying and improving the starting jump - inflatable cuffs (armbands).
Additive Manufacturing of Steel Alloys Using Laser Powder-Bed Fusion
Authors: Jamshidinia Mahdi , Sadek Alber , Wang Wesley , Kelly Shawn 
Published: August 2023

Abstract
In order to expand the choice of materials available for use in additive manufacturing, parameters that consider welding metallurgy, laser powder interaction, and post processing must be developed. This article describes the outcomes of process development for a steel and stainless steel alloy that are not standard materials for laser powder bed fusion equipment.
Using Magnetic Barkhausen Noise to Analyze Case Depth
Authors: Thomas James 
Published: August 2023

Abstract
Magnetic Barkhausen noise analysis is a nondestructive test method used since the 1980s to evaluate conditions in a variety of steel components. Primary applications include detection of thermal damage induced during grinding and evaluation of case depth in case-hardened parts. This article briefly describes its use for measure case depth and pros and cons of the using the technique for that purpose.
CONCENTRATIONS OF SILYMARIN ON THE RUMEN ACTIVITIES IN LAMBS
Authors: Dawood Tamara Natik 
Published: August 2023

Silymarin is derived from the milk thistle plant, and possesses numerous pharmacological actions, including hepatoprotective, anti-inflammatory, antioxidant, and anticancer properties. The aim of the study was to the determination of influence different concentrations of Silymarin on the rumen performance in 30 local lambs (divided into three groups of 10 lambs each). In the first and second groups, 420 and 210 mg kg-1 of silymarin were administered for 8 weeks, and the third group was the control, which received normal saline solution. The parameters evaluated included the level of volatile fatty acids (VFAs), ammonia and pH in the rumen. Furthermore, the in vitro digestibility of ash, protein, fat and dry matter was investigated. These parameters were examined fortnightly, for eight weeks. The results showed that the level of volatile fatty acids and pH increased in the rumen in G1 and G2 compared to the control group, while the level of ammonia decreased in the rumen in G1 and G2 when compared to G3 (p<0.05). Silymarin increased the in vitro digestibility of crude ash (CA), crude protein (CP), crude fat (CF) and crude dry matter (CDM) in the rumen of lambs. These results indicate that silymarin can improve the digestibility of nutrient elements in the lamb rumen.
Keywords: ammonia; digestibility; crude ash; crude protein; crude fat.

Concentrações de silimarina nas atividades ruminais de cordeiros

RESUMO: A silimarina é derivada da planta do cardo mariano e possui inúmeras ações farmacológicas, incluindo propriedades hepatoprotetoras, anti-inflamatórias, antioxidantes e anticancerígenas. O objetivo do estudo foi determinar a influência de diferentes concentrações de silimarina no desempenho ruminal de 30 cordeiros locais, divididos em três grupos (de 10 cordeiros cada). No primeiro e segundo grupo foi administrado 420 e 210 mg kg-1 de silimarina durante 8 semanas, e, o terceiro grupo foi o controle, que recebeu solução salina normal. Os parâmetros avaliados incluíram o nível de ácidos graxos voláteis (AGVs), amônia e pH no rúmen. Além disso, investigou-se a digestibilidade in vitro de cinzas, proteínas, gorduras e matéria seca. Esses parâmetros foram examinados quinzenalmente, durante oito semanas. Os resultados mostraram que o nível de ácidos graxos voláteis e pH aumentaram no rúmen em G1 e G2, em comparação com o grupo controle, enquanto, o nível de amônia diminuiu no rúmen em G1 e G2 quando comparado com G3 (p<0,05). A silimarina aumentou a digestibilidade in vitro da cinza bruta (CA), proteína bruta (PB), gordura bruta (CF) e matéria seca bruta (CDM) no rúmen dos cordeiros. Esses resultados indicam que silimarina pode melhorar a digestibilidade dos elementos nutrientes no rúmen do cordeiro.
Palavras-chave: amônia; digestibilidade; cinza bruta; proteína bruta; gordura bruta.
Difference in length of hospitalization day of Covid-19 patients with comorbid and no comorbid history in central Sulawesi
Authors: Kunoli Firdaus Y. , Saleh Azizah , Taha Masri Dg , Mangundap Selvi Alfrida 
Published: August 2023

Length of hospital stay is one of the elements or aspects of hospital care and service that can be assessed or measured. When someone is hospitalized, what is expected is that there will be a change in the degree of health. This study aims to determine the difference in the length of hospitalization for Covid-19 patients with a history of comorbid and without a history of comorbidities in Central Sulawesi. The type of research used is a cross-sectional analytic survey. The results showed that the most length of stay was not long, with a proportion of 52.1%, and the most comorbid history was having a comorbid with a proportion of 69.8%. The length of hospitalization was not long, with a proportion of 52.1%, and the most comorbid history was having a comorbid with a proportion of 69.8%. Furthermore, the Wilcoxon statistical test showed a difference in the average length of stay for Covid-19 patients with a history of comorbidities and without comorbidities with a value of 0.000. There is a difference in the average frequency of days of hospitalization for Covid-19 patients.
Perceptions toward achieving work-life balance and job satisfaction in online teaching
Authors: Cusipag Maria N. , Oluyinka Solomon , Bernabe Maria Teresa N. , Bognot Filipinas L. 
Published: August 2023

Online teaching has been implemented in the Philippines as a consequence of the critical global crisis that started in early 2020. Many higher education institutions still conduct online classes. However, research studies on employer’s support, workspace, and attitudes of students in relation to work-life balance and job satisfaction of teachers teaching online have been rarely explored, creating a gap in this area. Thus, the major objective of this study is to examine the perceived effects of employer’s support, workspace, and attitudes as teachers pursue work-life balance and job satisfaction in their online teaching job. A total of 256 responses extracted via the Google form link were analyzed with the aid of Smart PLS. Seven of the eight hypotheses tested were supported where p< 0.025, while one was not supported where p > 0.05. The findings revealed that work-life balance is positively influenced by workspace but not students’ attitudes; job satisfaction may be affected by workspace but not work-life balance and full support from an employer; and teaching online is positively affected by workspace and employer’s support but not students’ attitudes. In conclusion, teachers who teach online experience challenges but still manage to attain work-life balance and satisfaction from their job. For students who exhibit negative attitudes, this implies that teachers need to talk with them and find out their reasons for doing so. Making their lessons more interesting could minimize such problem. It is highly recommended that future researchers consider adding varied statistical tools, wider sampling of schools for their participants, and more teachers from community colleges and degree programs of higher education institutions. In order to validate the findings shown in the study, a replication may also be performed in a different region in the country.
Характеристики повітряного гвинта квадрокоптера
Authors: Balalaieva Kateryna , Balalaiev Anton , Golembiyevskyy Grygoriy , Kovtun Artem 
Published: August 2023

The subject of the study is the characteristics of the quadrocopter propeller. The object of the study is a two-blade propeller of a quadrocopter. The aim of this study was to evaluate the efficiency, acoustic characteristics of the propeller of a quadrocopter and optimize the angles of laying out carbon fiber with minimization of deflection. To achieve this goal, the following tasks were solved: simulation of the flow in a two-blade propeller of a quadrocopter in a given range of rotation frequencies; calculation of the efficiency of a two-blade propeller of a quadrocopter; calculation of the level of acoustic pressure of the studied propeller; and calculation of the deflection of a two-blade propeller of a quadrocopter at different angles of carbon laying out. The study of the flow in the propeller was carried out using the method of numerical experiment. The calculation for the deflection was carried out on the basis of the aerodynamic characteristics of the propeller using the method of a numerical experiment. The level of acoustic pressure L was estimated at 1 m from the source of acoustic radiation (screw). Results: the optimal mode of operation with a maximum efficiency is observed at a speed of 9000 rpm. and reaches a value of 0.853. At the minimum investigated speed of 3000 rpm. The propeller efficiency has the lowest value and is 0.638. With an increase in the speed of the rotor of the engine, the efficiency of the propeller gradually increases. With the increase of rotational speed from 9000 rpm. up to 10000 rpm. the efficiency decreases from 0.853 to 0.833. Estimation of the level of acoustic pressure of the studied two-bladed propeller showed that the rotation frequency had a significant effect on the level of acoustic pressure of the propeller. With an increase in rotational speed from 3000 rpm. up to 10000 rpm. propeller acoustic pressure-level increases from 56.62 dB to 90.57 dB. The calculation results showed that the deflection of the propeller blades under study depends on the laying angles of the carbon fiber layers. Blade deflection varies from 0.76 mm to 0.821 mm. The greatest deflection of the blades was achieved with the option of laying out layers of carbon fiber 0°/30°, the smallest - at angles of 0°/80°. The scientific novelty and practical significance of the conducted research is that new data on the characteristics of a two-blade quadrocopter propeller have been obtained. The data obtained will help create and optimize the parameters of a two-bladed quadrocopter propeller.
Особливості застосування альтернативних палив у теплових двигунах
Authors: Andriets Oleksandr , Shevchenko Oleh , Ohmakevych Valery , Khyzhniak Mykhailo 
Published: August 2023

The subject of the study is the use of alternative fuels and hydrogen in heat engines in different concentrations at different operating modes. The purpose of this study is to decarbonize various types of transport, especially aviation, to increase the energy efficiency and environmental performance of heat engines. Task: to investigate the use of such alternative fuels as biofuels, synthetic fuels, hydrogen and hydrogen mixtures. The use of aviation fuels shows that they must satisfy the relevant requirements, so the choice of alternative fuels must satisfy these requirements with the improvement of their characteristics, first in terms of energy efficiency and environmental indicators. To do this, starting with the ground test of a modern aircraft engine, Rolls-Royce conducted tests on an early conceptual demonstrator using green hydrogen. Green hydrogen was created by wind and tidal energy to prove that hydrogen could be the zero carbon aviation fuel of the future with zero carbon emissions. After analyzing the early ground test concept, the developers are planning a series of further bench tests leading to a full-scale ground test of a green hydrogen jet engine with the goal of achieving zero net carbon emissions from the engine Research Methods. According to the recommendations of the IPCC on the use of scarce fuel, the coefficients of harmful emissions (EI) are calculated for some types of aircraft for the Landing Take Off (LTO) cycle (landing / takeoff). Harmful emissions are calculated using the same method when alternative fuels are used in engines Since jet fuel emissions play an important role in the greenhouse effect, new technologies are being introduced to reduce emissions, among which one of the most effective and environmentally friendly is the use of biofuels, as biofuels are produced using modern biological processes. In this study, an experimental study of the influence of hydrogen addition on a traditional internal combustion diesel engine was conducted. The results. It was determined that the supply of small additions of gaseous hydrogen to the diesel manifold increases the efficiency of the engine at nominal and, largely, at partial modes of operation. The environmental parameters of the diesel engine are improved: the concentration of nitrogen oxides in the exhaust gases decreases, the soot content decreases by 30-40% and by 35%. A calculation method for the quantitative assessment of harmful emissions when using alternative fuels in aircraft engines is defined. Conclusions. The practical significance of the obtained results is that the obtained dependencies can be used when choosing the type of fuel for heat engines and determining the optimal concentration of an alternative fuel such as hydrogen to increase energy efficiency and improve the environmental performance of heat engines.
Pengaruh Inflasi, Tenaga Kerja, Ekspor Dan Pengeluaran Pemerintah Terhadap Pertumbuhan Ekonomi Di Provinsi Nusa Tenggara Timur
Authors: Patrocinio Gabriela B.M.C , Haukilo Emanuel Be , Kiha Emilia Khristina 
Published: August 2023

Peneletian ini bertujuan untuk mengetahui masalah pertumbuhan ekonomi di provinsi NTT yang berfluktuasi periode lima tahun terakhir yang dipengaruhi oleh berbagai macam factor salah satunya adalah inflasi, tenaga kerja, ekspor dan pengeluaran pemerintah. Data yang digunakan dalam penelitian ini adalah data sekunder time series dan cross section dari tahun 2017–2021 yang berkaitan dengan judul penelitian yakni inflasi, tenaga kerja, ekspor, pengeluaran pemerintah dan pertumbuhan ekonomi di Provinsi NTT. Alat analisis yang digunakan adalah analisis regresi data panel. Hasil analisis menunjukan bahwa secara parsial inflasi berpengaruh tetapi tidak signifikan terhadap tenaga kerja, secara parsial inflasi berpengaruh signifikan terhadap pertumbuhan ekonomi, secara parsial tenaga kerja berpengaruh tetapi tidak signifikan terhadap pertumbuhan ekonomi, secara parsial ekspor berpengaruh signifikan terhadap pertumbuhan ekonomi, secara parsial pengeluaran pemerintah berpengaruh signifikan terhadap pertumbuhan ekonomi dan secara simultan inflasi, tenaga kerja, ekspor dan pengeluaran pemerintah berpengaruh signifikan terhadap pertumbuhan ekonomi di Provinsi NTT.
Hipotesis Lintasan Belajar Matematika Siswa Dengan PendekatanPendidikan Matematika Realistik Indonesia (PMRI) pada Siswa Kelas VII SMP Negeri Maubeli Tahun Ajaran 2019/2020
Authors: Liu Anita 
Published: August 2023

Tujuan penelitian ini adalahmenghasilkan lintasan belajar siswa (HLB), mengetahui dan mendeskripsikan hasil belajar matematika siswa dengan pendekatan pendidikan matematika realistik Indonesia (PMRI) kelas VII A SMP Negeri Maubeli. Hasil belajar matematika siswa kelas VII A SMP Negeri Maubeli masih rendah, diduga rendahnya hasil belajar disebabkan kurangnya inovasi atau metode mengajar yang tepat, sehingga guru masih menggunakan pembelajaran konvensional dengan guru menjadi pusat dari seluruh kegiatan belajar mengajar di kelas. Jenis penelitian adalah penelitian kualitatif dengan metode design research melalui tahap pilot experiment dan teachingexperiment.Pilot experiment melibatkan 6 orang siswa, dan teaching experiment melibatkan 22 orang siswa. Dalam pembelajaran operasi penjumlahan dan pengurangan bilangan bulat menggunakan kartu positif negatif meliputi 4 tahap aktifitas yaitu : pengenalan dan penjelasan penggunaan kartu positif negatif, pengerjaan LKS, analisis dan menyimpulkan informasi, dan penyampaian hasil kerja siswa. Hasil belajar matematika siswa dengan pendekatan PMRI penjumlahan dan pengurangan bilangan bulat menggunakan kartu positif negatif efektif dan praktis, karena memenuhi KKM yang ditetapkan yaitu 72.
Analisis Faktor-Faktor yang Mempengaruhi Proses Pembelajaran Matematika di SMP Negeri Nunufafi
Authors: Asa Jefrianus Matias 
Published: August 2023

Penelitian dilakukan terhadap empat faktor yamg mempengaruhi proses pembelajaran yaitu Kemampuan guru dalam mengelola pembelajaran, aktivitas siswa, strategi mengajar dan perangkat pembelajaran. Dari keempat faktor tersebut akan dianalisis untuk mengetahui faktor mana yang paling dominan dalam proses belajar mengajar serta menjadi acuan bagi guru matematika dalam melaksanakan proses belajar mengajar. Untuk menentukan faktor yang paling dominan Penulis menggunakan metode Analytical Hierarchy Process (AHP). Penelitian yang dilakukan merupakan jenis penelitian kuantitatif . Sumber data yang diambil dalam penelitian ini yaitu guru matematika berjumlah 2 orang dan peserta didik kelas VIIIAB berjumlah 32 orang. Alat pengumpul data yang digunakan dalam penelitian ini berupa instrumen kuesioner yang dibagikan kepada responden. Berdasarkan hasil analisis data maka besarnya faktor kemampuan guru dalam mengelola pembelajaran adalah 4,018098, faktor aktivitas siswa adalah 4,00, faktor strategi mengajar adalah 4,00 dan faktor perangkat pembelajaran adalah 4,017391.
Pendampingan Adaptasi Teknologi, Numerasi, Literasi, dan Administrasi Pada SMP Baitur Rohman Wringinagung
Authors: Wardah Nabiladhia Rahayu Prima , Murtinasari Frida , Panglipur Indah Rahayu , Putra Eric Dwi 
Published: August 2023

Kegiatan kampus mengajar memberikan mafaat yang banyak bagi sekolah. Berbagai kegiatan dilakukan untuk mengatasi permasalahan yang di temui di sekolah. Dalam pengabdian ini ditemui premasalah terkait adaptasu teknologi dalam pembelajaran, literasi dan numerasi dalam pembelajaran, serta adminitrasi dalam pengelolaa perpustakaan. Tujuan dari kegiatan pendampingan 4 permasalahan di atas yaitu memberikan perbaruan kemampuan teknologi dalam pembelajaran, peningkatan kemampuan literasi dan numerasi siswa dalam pembelajaran, serta pengelolaan perpustakaan dengan adminitrasi yang memadai. Kesimpulan dari pendampingan yaitu siswa telah memulai membiasakan pembelajaran yang menggunkan media teknologi seperti video pembelajaran, dan komputer, serta kemampuan literasi dan numerasi siswa meningkat dalam proses pembelajaran. Perpustakaan mempunyai adminitrasi yang tertib, buku koleksi perpustakaan yang tertata dengan baik. Siswa dan guru mudah untuk menemukan buku yang dibutuhkan dalam pembelajaran.