bluuebunny/crossref_metadata_2025 huggingface dataset:
High‐fat diet increases electron transfer flavoprotein synthesis and lipid respiration in skeletal muscle during exercise training in female mice
Authors: Batterson Philip M. , McGowan Erin M. , Borowik Agnieszka K. , Kinter Michael T. , Miller Benjamin F. , Newsom Sean A. , Robinson Matthew M.
Published: October 2023

High‐fat diet (HFD) and exercise remodel skeletal muscle mitochondria. The electron transfer flavoproteins (ETF) transfer reducing equivalents from β‐oxidation into the electron transfer system. Exercise may stimulate the synthesis of ETF proteins to increase lipid respiration. We determined mitochondrial remodeling for lipid respiration through ETF in the context of higher mitochondrial abundance/capacity seen in female mice. We hypothesized HFD would be a greater stimulus than exercise to remodel ETF and lipid pathways through increased protein synthesis alongside increased lipid respiration. Female C57BL/6J mice (n = 15 per group) consumed HFD or low‐fat diet (LFD) for 4 weeks then remained sedentary (SED) or completed 8 weeks of treadmill training (EX). We determined mitochondrial lipid respiration, RNA abundance, individual protein synthesis, and abundance for ETFα, ETFβ, and ETF dehydrogenase (ETFDH). HFD increased absolute and relative lipid respiration (p = 0.018 and p = 0.034) and RNA abundance for ETFα (p = 0.026), ETFβ (p = 0.003), and ETFDH (p = 0.0003). HFD increased synthesis for ETFα and ETFDH (p = 0.0007 and p = 0.002). EX increased synthesis of ETFβ and ETFDH (p = 0.008 and p = 0.006). Higher synthesis rates of ETF were not always reflected in greater protein abundance. Greater synthesis of ETF during HFD indicates mitochondrial remodeling which may contribute higher mitochondrial lipid respiration through enhanced ETF function.
Combined CFD and Heat Treatment Simulation of High-Pressure Gas Quenching Process
Authors: Heinz P. , Juckelandt K. , Lutz S.
Published: October 2023

To improve the process development for high pressure gas quenching a digital quenching simulation model combining the fields of computational fluid dynamics and heat treatment process simulation has been developed. It was found that the gas flow and hence the quenching properties depend on both local (geometry of parts, carrier and chamber) as well as global influencing factors (fan characteristics, system pressure and hydraulic resistances). Therefore, a computational fluid dynamics model that includes all these factors was realized. The approach includes a heat transfer analysis to determine the local heat exchange coefficients on a component level. By connecting the computational fluid dynamics model and heat treatment simulation the local quenching characteristics are used to compute the temperature history of the quenched part. Based on a thermo-metallurgical heat treatment simulation the computed local cooling curves and metallurgical phase compositions are used to accurately predict the part properties like microstructure and hardness. The applicability of the model has been confirmed by hardness measurements.

Hardness results for different batch positions, batch setups or tray systems can now be computed enabling an efficient virtual development of the gas quenching process.
A case-control study of early-stage radiological markers of endothelial dysfunction and cardiovascular findings in patients with osteogenesis imperfecta: genotype–phenotype correlations
Authors: Evin Ferda , Aydın Derya , Levent Ertürk , Özen Samim , Darcan Şükran , Gökşen Damla
Published: October 2023

Objectives

Osteogenesis imperfecta (OI) is a disease caused by defective collagen synthesis. Collagen type 1 is found in many structures in the cardiovascular system. Endothelial dysfunction, which develops prior to the emergence of structural and clinical signs of atherosclerosis, is believed to play a key role in atherogenesis. Endothelial dysfunction may be detected presymptomatically by non-invasive radiologic methods, such as flow-mediated dilatation (FMD) and carotid intima-media thickness (CIMT). These modalities may provide early indicators of endothelial dysfunction. This cross-sectional comparative study aimed to investigate early-stage radiological markers of endothelial dysfunction and cardiovascular diseases in OI patients and healthy controls and to investigate the correlation of findings with OI genotype.

Methods

Thirty patients diagnosed with OI were paired with thirty healthy age- and gender-matched controls and echocardiogram findings were compared.

Results

None of the patients had known underlying cardiovascular disease. The mean age was 13.18 ± 2.91 years. According to Sillence classification, 15 patients had type 1 OI, 10 had type III, and 5 had type IV. Mean CIMT in the OI group was higher in the control group (OI group: 0.42 ± 0.06 vs. healthy controls: 0.34 ± 0.04 mm, p<0.01), and mean FMD percent was lower in the patient group (p<0.01). Left ventricular ejection fraction was 78.97 ± 10.32 vs. 77.56 ± 8.50 %, (OI group: 7.00 ± 3.06 vs. healthy controls: 12.14 ± 1.99, p=0.56), and fractional shortening was 42.68 ± 11.94 vs. 40.23 ± 7.99 %, (p=0.35), in OI patients and controls, respectively.

Conclusions

Pediatric patients with OI without clinical signs of cardiovascular abnormality had significantly worse CIMT and FMD findings than healthy controls. However, no difference was determined when comparing left ventricular ejection fraction or fractional shortening. OI patients may need to be screened for cardiovascular system complications starting from an early age.
Cascaded domain engineering optical phased array for 2D beam steering
Authors: Li Jingwei , Zheng Huaibin , He Yuchen , Liu Yanyan , Wei Xiaoyong , Xu Zhuo
Published: October 2023

The current approach to 2D optical phased array (OPA) encounters challenges, such as the requirement for a highly tunable laser that is incompatible with certain 2D beam-steering applications or significant power consumption, large antenna spacing and complex wiring resulting from independent control of array elements. To address these challenges, we propose an OPA architecture based on cascaded periodically poled LiNbO3 sequences, a multi-layered domains engineered structure within the LiNbO3 electro-optic crystal, only two control electronics to program the 2D beam-steering trajectory with a range of approximately θ

y
= ±20° and θ

z
= ±16° through simulations. This structure enables the uniform distribution of phase differences between adjacent array elements (adjacent domains) upon beam exit from the crystal, ensuring optimal performance. The aim of this study is to develop a methodology that employs domain engineering techniques for designing high-performance phase-controlled devices with customized functional units and sequences in electro-optical crystals. Our research has implications for emerging optoelectronic applications, such as customizable optical interconnects and integrated LiDAR systems.
Atomistic polarization model for Raman scattering simulations of large metal tips with atomic-scale protrusions at the tip apex
Authors: Cui Jie , Zhang Yao , Dong Zhen-Chao
Published: October 2023

Tip-enhanced Raman spectroscopy (TERS) has recently been developed to push the spatial resolution down to single-chemical-bond scale. The morphology of the scanning tip, especially the atomistic protrusion at the tip apex, plays an essential role in obtaining both high spatial resolution and large field enhancement at the Ångström level. Although it is very difficult to directly characterize the atomistic structures of the tip, the Raman scattering from the apex’s own vibrations of the metal tip can provide valuable information about the stacking of atoms at the tip apex. However, conventional quantum chemistry packages can only simulate the Raman scattering of small metal clusters with few atoms due to huge computational cost, which is not enough since the shaft of the tip behind the apex also makes significant contributions to the polarizabilities of the whole tip. Here we propose an atomistic polarization model to simulate the Raman spectra of large metal tips at subwavelength scales based on the combination of the atomistic discrete dipole approximation model and the density functional theory. The atomistic tip with different sizes and stacking structures is considered in its entirety during the calculation of polarizabilities, and only the vibrational contributions from the tip apex are taken into account to simulate the Raman spectra of the tip. The Raman spectral features are found to be very sensitive to the local constituent element at the tip apex, atomic stacking modes, and shape of the tip apex, which can thus be used as a fingerprint to identify different atomistic structures of the tip apex. Moreover, our approaches can be extended to the metal tips with sub-wavelength sizes, making it possible to consider both the large scale and the atomistic detail of the tip simultaneously. The method presented here can be used as a basic tool to simulate the Raman scattering process of the metal tips and other nanostructures in an economic way, which is beneficial for understanding the roles of atomistic structures in tip- and surface-enhanced spectroscopies.
Reconfigurable nonlinear losses of nanomaterial covered waveguides
Authors: Davletkhanov Ayvaz , Mkrtchyan Aram , Bunkov Alexey , Chermoshentsev Dmitry , Shashkov Mikhail , Ilatovskii Daniil , Krasnikov Dmitry , Nasibulin Albert , Gladush Yuriy
Published: October 2023

Optical waveguides covered with thin films, which transmittance can be controlled by external action, are widely used in various applications from optical modulators to saturable absorbers. It is natural to suggest that the losses through such a waveguide will be proportional to the absorption coefficient of the covering material. In this letter, we demonstrate that under certain conditions, this simple assumption fails. Instead, we observe that the reduction of the material loss of the film can lead to an increase in the propagation losses through the waveguide. For this, we use a side polished fiber covered with a single-walled carbon nanotube thin film whose absorption can be attenuated either by a short pulse illumination (due to absorption saturation) or with electrochemical gating. For the films thicker than 50 nm, we observe saturable absorption to turn into optical limiting with nonmonotonic dependence on the incident power. With a numerical simulation, we identify that this nontrivial behavior comes from mode reshaping due to changes in the absorption coefficient of the covering film. We demonstrate the applicability of the observed effect by fabricating the device which nonlinear optical response can be controllably switched between saturable absorbing and optical limiting. Finally, we utilize an analytical approach to predict the required parameters and corresponding nontrivial shapes of the nonlinear absorbance curves. These results provide new perspectives for engineering complex reconfigurable nonlinear optical responses and transmittance dependences of nanomaterial covered waveguides.
Crystal structure of 1,4-dibromo-2,5-bis(prop-2-yn-1-yloxy)benzene, C12H8Br2O2
Authors: Wang Zhi-Yong , Zhang Qi-Long , Zhang Xiu-Ming , Zhou Xu , Yang Xian-Jiong , Xu Hong
Published: October 2023

C12H8Br2O2, monoclinic, P21/c (no. 14), a = 4.1957(13) Å, b = 13.402(4) Å, c = 11.160(3) Å, β = 99.645(10)°, V = 618.7(3) Å3, Z = 2, R
gt(F) = 0.0287, wR
ref(F
2) = 0.0701, T = 273(2) K.
Exploring the potential of biogenic magnesium oxide nanoparticles for cytotoxicity: In vitro and in silico studies on HCT116 and HT29 cells and DPPH radical scavenging
Authors: Kadir Nurul Huda Abd , Roza Nur Anniesa Farhana Mohd , Khan Azmat Ali , Khan Azhar U. , Alam Mahboob
Published: October 2023

The goal of this work was to assess the cytotoxicity, chemical characteristics, thermal stability, and antioxidant activity of green-synthesized MgO nanoparticles (MgO NPs) produced from pumpkin seed extract for their potential therapeutic implications in cancer treatment. The shape, chemical properties, and thermal stability of MgO NPs made with green synthesis were looked at with Fourier-transform infrared spectroscopic analysis, scanning electron microscopy (SEM) and transmission electron microscopic (TEM) imaging, energy-dispersive X-ray spectroscopy (EDX), ultraviolet-visible, X-ray diffraction (XRD), and thermogravimetric analysis. Three cell lines, HCT-116, HT29, and Vero, were used to test the cytotoxicity of MgO NPs. The AlamarBlue® assay was used for HCT-116 and Vero cells, and the Neutral Red (NR) Uptake Assay was used for HT29 cells. A molecular docking study was done to find out how MgO nanoparticles and cyclin-dependent kinase 2 (CDK2), a protein linked to cancerous cells growing out of control, interact. The morphological properties, size, aggregation, shapeless pores, and high surface-to-area volume ratio of biosynthesized MgO NPs were shown using SEM and TEM imagings. The elemental composition of Mg and O in green-synthesized MgO NPs was validated using EDX. The AlamarBlue® assay did not yield IC50 values for HCT-116 and Vero cells, suggesting minimal cytotoxicity in these cell lines. However, the NR Uptake Assay showed an IC50 of 164.1 µg/mL for HT29 cells, indicating a significant impact. The DPPH experiment revealed that MgO nanoparticles had high antioxidant activity, with a scavenging capacity of 61% and an IC50 of 170 μg/mL. In conclusion, MgO nanoparticles produced utilizing green chemistry demonstrated a wide range of biological features, including antioxidant activity and cytotoxicity against three cell lines. According to molecular docking studies, these nanoparticles may interact with CDK2, a protein implicated in cancer cell growth. These findings emphasize MgO nanoparticles’ potential for cancer treatment. However, further study is needed to understand the underlying processes and investigate therapeutic applications.
miR‐30a‐3p inhibits the proliferation of laryngeal cancer cells by targeting DNMT3a through regulating DNA methylation of PTEN
Authors: Gao Tianle , Ren Xiabin , Li Jun , Shen Na
Published: October 2023

Objectives

The study aims to examine how miR-30a-3p impacts the growth of laryngeal cancer by exploring its underlying mechanism. Our hypothesis suggests that the regulation of DNMT3a through PTEN by miR-30a-3p plays a significant role in the proliferation of laryngeal cancer.

Methods

To predict the role of miR-30a-3p in laryngeal cancer and its binding site to DNA methyltransferase 3a (DNMT3a), we utilized data from TCGA, GEO, and starBase. We employed Western blot and qRT-PCR to measure the expression levels of miR-30a-3p, DNMT3a, and PTEN. The interaction between miR-30a-3p and DNMT3a was evaluated using a Luciferase reporter assay. Cell proliferation and invasive abilities were assessed through the CCK-8 kit, EdU staining, and transwell assays.

Results

Analysis of TCGA data revealed that the expression of miR-30a-3p could impact the survival of patients with head and neck cancer. In Hep-2 cells, we observed down-regulated miR-30a-3p and up-regulated DNMT3a, with a negative correlation between the two. Furthermore, we discovered that miR-30a-3p directly targeted DNMT3a and suppressed its expression in Hep-2 cells, resulting in a decrease in cellular proliferation and invasive capabilities. Additionally, overexpression of miR-30a-3p in Hep-2 cells activated PTEN by reducing DNMT3a expression.

Conclusions

Our findings indicate that miR-30a-3p, acting as a tumor suppressor gene, plays a regulatory role in the growth and progression of laryngeal cancer through its interaction with DNMT3a and PTEN.
Transnationale Bildung und individuelle Bildungsprozesse
Authors: Deppe Ulrike
Published: October 2023

Der Beitrag führt zunächst Ansätze und in die Forschung eingelagerte Vorstellungen von transnationaler Bildung zusammen, um anhand dessen eine Leerstelle genauer auszuarbeiten, die es in Bezug auf die Bestimmung und die Untersuchung individueller Bildungsprozesse unter transnationalen und migrationsgesellschaftlichen Bedingungen gibt. Dazu werden zunächst die Genese und Verwendung des Begriffs transnationale Bildung und auch die vorhandenen Forschungsansätze und -bereiche skizziert. Anhand von Studien, die sich mit Bildungsprozessen im Zusammenhang von transnationalen Erfahrungen junger Menschen beschäftigen, wird erkundet, wie transnationale Bildungsprozesse implizit oder explizit von ihnen konzipiert werden. In einem letzten Schritt wird ein Ausblick gegeben, wie diese Bildungsverständnisse kritisch reflektiert, theoretisch gerahmt und empirisch weiter untersucht werden könnten.
Ziele und Methoden der Extremismusprävention
Authors: Porsché Yannik
Published: October 2023

In diesem Beitrag untersuche ich Ziele und Methoden von Praktiken der Extremismusprävention. In meiner Arbeitsplatzstudie eines Vereins, der einerseits in Kooperation mit der Polizei Radikalisierungssimulationen in Schulen durchführt und andererseits Mentoring von Menschen mit Fluchterfahrung in Deutschland anbietet, gehe ich aus einer trans-sequentiellen Perspektive der Frage nach, wie Arbeitsschritte aufeinander aufbauen und an welchen Stellen Ausrichtungen der Arbeit auf unterschiedliche Ziele und Zielgruppen in Konflikt geraten. Die ethnographische Interaktionsanalyse zeigt, wie über mehrere Situationen hinweg und je nach institutionellem Ansatz, in Präventionsmaßnahmen an persönlicher Entwicklung, normativen Einstellungen und sozialen Beziehungen gearbeitet wird. Dabei changiert die Kategorisierung der Zielgruppen je nach Ansatz, Publikum und Zeitpunkt im Arbeitsverlauf zwischen „Täter:innen“ und „Opfern“. Ich diskutiere, wie in der Arbeitspraxis um grundsätzliche Fragen der Zielgruppenkonstruktion, der (Erziehungs-)Ziele und Arbeitsmethoden gerungen wird.
Extended model of mobile shopping acceptance: An empirical study of consumer behaviour
Authors: Stefko Robert , Gavurova Beata , Olearova Maria , Bacik Radovan , Nebesky Lubomir
Published: October 2023

Although the popularity of mobile commerce is on the rise, mobile shopping is still not widely accepted in Slovakia. Therefore, research and knowledge in this area is insufficient. Based on two research models which explain human behavior (theory of reasoned action) and how the user accepts new technologies (technology acceptance model), the presented study proposes and tests a conceptual model combining the mentioned models and new, stimulating factors (customized offers and price benefits) in order to design a holistic model for predicting consumer behavior with regard to the acceptance of mobile shopping. In the first step of the research, we used exploratory factor analysis (EFA) to extract the predicted factors and verify the validity and reliability of the research tool – a questionnaire. The main research was conducted on a sample of 627 students from Slovak universities (part-time study). Using the confirmatory factor analysis (CFA), we performed a measurement model evaluation, and then, using the structural equation modeling – partial least squares (SEM – PLS) method, we evaluated and quantified the expected effects of the investigated factors. These new, stimulating factors, integrated into the theoretical framework of existing models, have been shown to act as direct and indirect predictors of the intention to mobile shopping. However, perceived usefulness proved to be the strongest predictor. The intention to mobile shopping is also significantly influenced by the attitude to mobile shopping, which is also determined by the new factor customized offers. The results the research arrives at may be beneficial for businesses, as they may reduce the costs associated with the creation of mobile shopping channels from an economic point of view and may increase their market competitiveness.
Elections, Succession, and Legitimacy in Ukraine
Authors: D’Anieri Paul
Published: October 2023

Of Ukraine’s six presidential transitions, only those in 2010 and 2019 proceeded entirely as envisioned in the constitution. In several cases, elections and transitions resulted from ad hoc arrangements made to address political crises. In one case, street protests forced the rerunning of elections seen as rigged, and in another street protests led to the departure of a president whose election had been seen as free and fair. In some cases, procedures that were entirely improvised were widely seen as legitimate, while in other cases established formal procedures were insufficient to legitimize a leader’s rule. This raises the question of how elections and legitimacy interact. Under what conditions are elections sufficient to legitimate rule, and in what cases are they insufficient? Under what circumstances do non-legal means of changing rulers gain popular legitimacy? By reviewing Ukraine’s seven presidential elections and six transitions of power, this article explores variation in the power of elections as a legitimating force.
Polar oceans and sea ice in a changing climate
Authors: Willis Megan D. , Lannuzel Delphine , Else Brent , Angot Hélène , Campbell Karley , Crabeck Odile , Delille Bruno , Hayashida Hakase , Lizotte Martine , Loose Brice , Meiners Klaus M. , Miller Lisa , Moreau Sebastien , Nomura Daiki , Prytherch John , Schmale Julia , Steiner Nadja , Tedesco Letizia , Thomas Jennie
Published: October 2023

Polar oceans and sea ice cover 15% of the Earth’s ocean surface, and the environment is changing rapidly at both poles. Improving knowledge on the interactions between the atmospheric and oceanic realms in the polar regions, a Surface Ocean–Lower Atmosphere Study (SOLAS) project key focus, is essential to understanding the Earth system in the context of climate change. However, our ability to monitor the pace and magnitude of changes in the polar regions and evaluate their impacts for the rest of the globe is limited by both remoteness and sea-ice coverage. Sea ice not only supports biological activity and mediates gas and aerosol exchange but can also hinder some in-situ and remote sensing observations. While satellite remote sensing provides the baseline climate record for sea-ice properties and extent, these techniques cannot provide key variables within and below sea ice. Recent robotics, modeling, and in-situ measurement advances have opened new possibilities for understanding the ocean–sea ice–atmosphere system, but critical knowledge gaps remain. Seasonal and long-term observations are clearly lacking across all variables and phases. Observational and modeling efforts across the sea-ice, ocean, and atmospheric domains must be better linked to achieve a system-level understanding of polar ocean and sea-ice environments. As polar oceans are warming and sea ice is becoming thinner and more ephemeral than before, dramatic changes over a suite of physicochemical and biogeochemical processes are expected, if not already underway. These changes in sea-ice and ocean conditions will affect atmospheric processes by modifying the production of aerosols, aerosol precursors, reactive halogens and oxidants, and the exchange of greenhouse gases. Quantifying which processes will be enhanced or reduced by climate change calls for tailored monitoring programs for high-latitude ocean environments. Open questions in this coupled system will be best resolved by leveraging ongoing international and multidisciplinary programs, such as efforts led by SOLAS, to link research across the ocean–sea ice–atmosphere interface.
Multi‐omic network analysis identified betacellulin as a novel target of omega‐3 fatty acid attenuation of western diet‐induced nonalcoholic steatohepatitis
Authors: Padiadpu Jyothi , Garcia‐Jaramillo Manuel , Newman Nolan K , Pederson Jacob W , Rodrigues Richard , Li Zhipeng , Singh Sehajvir , Monnier Philip , Trinchieri Giorgio , Brown Kevin , Dzutsev Amiran K , Shulzhenko Natalia , Jump Donald B , Morgun Andrey
Published: October 2023

Clinical and preclinical studies established that supplementing diets with ω3 polyunsaturated fatty acids (PUFA) can reduce hepatic dysfunction in nonalcoholic steatohepatitis (NASH) but molecular underpinnings of this action were elusive. Herein, we used multi‐omic network analysis that unveiled critical molecular pathways involved in ω3 PUFA effects in a preclinical mouse model of western diet induced NASH. Since NASH is a precursor of liver cancer, we also performed meta‐analysis of human liver cancer transcriptomes that uncovered betacellulin as a key EGFR‐binding protein upregulated in liver cancer and downregulated by ω3 PUFAs in animals and humans with NASH. We then confirmed that betacellulin acts by promoting proliferation of quiescent hepatic stellate cells, inducing transforming growth factor–β2 and increasing collagen production. When used in combination with TLR2/4 agonists, betacellulin upregulated integrins in macrophages thereby potentiating inflammation and fibrosis. Taken together, our results suggest that suppression of betacellulin is one of the key mechanisms associated with anti‐inflammatory and anti‐fibrotic effects of ω3 PUFA on NASH.
Regional Security Complexes in the Present Conditions
Authors:   Mariupol State University, Karpenko Oleksandr
Published: October 2023

It is substantiated that in the current conditions of development of the world economy under the influence of globalization, regional security complexes are increasing their influence on the formation of international security. It is proved that in the process of evolution, security complexes have significantly diversified their scope and cover, in addition to military and defense issues, economic, environmental, social, information and other security elements. It is determined that the European and North American security complexes have reached the transcontinental level of institutional security. Modern regional security complexes (RSCs) differ in the degree of integration of security issues at the level of intergovernmental institutions - from relatively complete integration of approaches to resolving security issues (at the EU level) to weak security cooperation. It is determined that the institutional profile of regional security complexes is predominantly mixed, which is determined by the peculiarities of the activities of both universal and specialized interstate institutions. The author emphasizes the unevenness of institutional support for various components of economic security at the level of specialized interstate institutions.
Kontribusi Presentase Ketebalan Lemak Tubuh dan IMT Terhadap Physical Fitness Index Atlet Judo PPLP Jawa Tengah
Authors: Siwi Evie Riana Widya , Rustiadi Tri
Published: October 2023

Several sports, especially judo, with a high body posture and good physical condition will support the achievement of high sports achievements, such as fat thickness and BMI. This study aims to determine the percentage of body fat thickness and BMI PhysicalFitness Index in Central Java PPLP Judo athletes and the contribution of percentage body fat thickness and BMI to PhysicalFitness Index in PPLP Central Java Judo Athletes 2020. The data collection method uses survey tests. The subject of the study was athletejudo PPLP Central Java 2020. The results of the study on the percentage of body fat thickness against the physical fitness index obtained a t-count value of -2.878 more than the t-table. The results of the BMI study on physical fitness index showed that the t-count value of -2.656 was more than the t-table. Based on the results, it was concluded that the contribution of body fat thickness to physical fitness index was significant and it can be concluded that the contribution of BMI to physical fitness index was significant.
MANAJEMEN SARANA DAN PRASARANA EKSTRAKULIKULER BOLA BASKET DI ITE COLLEGE EAST SINGAPORE TAHUN 2019
Authors: Nabila Liesta Ayu , Rumini Rumini
Published: October 2023

Permasalahan dalam penelitian ini adalah manajemen sarana dan prasarana ekstrakulikuler bola basket di ITE College East Singapore tahun 2019. Tujuan penelitian ini untuk mengetahui manajemen sarana dan prasarana ekstrakulikuler bola basket di ITE College East Singapore tahun 2019. Penelitian ini menggunakan metode pendekatan penelitian kualitatif deskriptif. Subjek dalam penelitian ini adalah pelatih ekstrakulikuler bola basket dan manajer PE Departement ITE College East Singapore. Hasil penelitian ini menunjukan bahwa proses manajemen sarana dan prasarana ekstrakulikuler bola basket di ITE College East Singapore adalah (1) Pengadaan sarana dan prasarana ekstrakulikuler bola basket ITE College East Singapore, (2) penggunaan sarana dan prasarana ekstrakulikuler bola basket ITE College East Singapore, (3) pemeliharaan sarana dan prasarana ekstrakulikuler bola basket ITE College East Singapore, dan (4) peningkatan sarana dan prasarana ekstrakulikuler bola basket ITE College East Singapore.
Efektivitas Penggunaan Media Pembelajaran Permainan Tradisional Gobak Sodor Untuk Meningkatkan Kemampuan Motorik Kasar Pada Siswa Tunagrahita Ringan Di SLB YKPC GBKP Alpha Omega
Authors: Bukit Julianus , Pramono Harry
Published: October 2023

Background:(1) Physical education is a part of education that affects the potential of students in terms of cognitive, affective, and psychomotor which are inseparable from education in general. (2) Gross motor skills are abilities related to the movement of large muscles in controlling body movements through locomotor, non-locomotor, and manipulative abilities. (3) The gobak sodor game can develop children's gross motor skills. Research Questions: (1) Is there an effect of the traditional Gobak Sodor game on pace? (2) What influence does the traditional game of Gobak Sodor have on agility? (3) What effect does the traditional Gobak Sodor game have on reaction speed?. The research method used was an experiment with a "pre-test and post-test group" researchdesign. Mild intellectual students of SLB Alfa Omega with population of16 people, the sample is 16 people with purposive sample technique. The research variables consisted of independent variables, namely the traditional gobak sodor game and the dependent variable, namely the gross motor skills of mild intellectual students. Data analysis was conducted by normality test and homogeneity test. The research results can be concluded: (1) There is an effect of the traditional Gobak Sodor game on pace (running 50 meters) through the pre-test data which has an average of 10.17 and the post-test data has an average of 9.06. By using the paired sample t-test, the sig 2 tailed value was 005. (2) There is an effect of the traditional Gobak Sodor game on agility (Shuttle run) through the pre-test data which has an average of 17.72 and post-test data has an average of 17.00. By using the paired sample t-test, the sig 2 tailed value was 015. (3) There is an effect of the traditional Gobak Sodor game on reaction speed (drop test ruler tool) through the pre-test data which has an average of 32 cm and the post-test data has an average of 24 cm using the paired sample t-test, with a sig 2 tailed value. equal to 044. (4) The results of the data obtained by the experimental group were better than the control group. The researcher's suggestion: teachers are expected to provide simple and attractive learning media for students with mild intellectual so that these students are able to follow and improve their gross motor skills.
Perilaku Hidup Sehat Terhadap Tingkat Kesegaran Jasmani Siswa Kelas XI IPA 2 SMA Negeri 9 Semarang T/A 2019/2020
Authors: Albi Muhamad Wildan , Rustiadi Tri
Published: October 2023

The background of this research is the modernization era as it is today physical freshness is the main capital that should be owned by a person, be it adults or children. This research uses quantitative methods. The location of this research is in Semarang City with a research population of grade XI IPA 2 students of SMA Negeri 9 Semarang as many as 30 students, with census sampling techniques. The data collection instrument is conducted using questionnaires and freshness tests. The data analysis methods used are validity test, reliability test, normality test, linearity test, and product moment analysis. The results of this study showed that healthy living behavior variables have a significant positive influence simultaneously on physical health variables. The result of the analysis obtained a correlation coefficient value (r hit) of 0.848 > r tab 0.361. The conclusion of this research is that the implementation of sports activities of SMA N 9 Semarang went well. The advice given is that schools should provide sports facilities and infrastructure and provide more support to students to develop their talents.
Minat Dan Aktivitas Gerak Siswa SMP N 2 Kandangan Dalam Pembelajaran Penjas Daring Pada Masa Pandemic Covid-19
Authors: Imani Alam Tsabit , Raharjo Hermawan Pamot
Published: October 2023

The world of education is currently facing quite a complex problem, namely the Coronavirus Disesase (Covid-19). During the COVID-19 Pandemic, the government in Indonesia has provided rules to close schools in the red and yellow zones and conduct distance learning at home, one of which is SMP Negeri 2 in Kandangan District has also decided to implement a learning policy, one of which is the Sports Physical Education subject. and Health (PJOK) from home as a form of emergency response to prevent the spread of the corona virus. However, students experienced obstacles, namely that not all students had smartphones, internet quotas, and difficulty in signal networks. The purpose of this study was to describe and study students' interests and movement activities in learning physical education class VIII at SMP Negeri 2 Kandangan during the Covid-19 pandemic. This research is a type of qualitative research with a descriptive approach. The results of the research were the implementation of PJOK learning during this pandemic, students were less happy and less interested because students were bored with online learning methods, students had difficulty understanding the learning material and students were less actively involved in learning. In terms of movement activities, students are not maximal in doing so, students are less able to capture examples of movements that are given online. The conclusion of this study was that grade VIII students at SMP N 2 Kandangan were less interested in participating in online Physical Education learning during the Covid-19 pandemic.
Pengaruh Pemberitaan Media Massa Pada Motivasi Atlet di Kabupaten Banyumas
Authors: Pramukti Widya Asri , Akhiruyanto Andry
Published: October 2023

Prestasi olahraga dipengaruhi oleh adanya motivasi tertentu yang didasari pada kebutuhan dan ekspektasi dalam diri seorang atlet. Motivasi berprestasi yang besar akan menciptakan performa maksimal. Ada beberapa faktor yang mendasari motivasi atlet termasuk faktor ekternal yang salah satunya adalah pemberitaan media massa. Tujuan penelitian ini adalah untuk mengetahui pengaruh pemberitaan media massa pada motivasi atlet. Fokus penelitian ini adalah untuk mengetahui pengaruh pemberitaan media massa terhadap motivasi atlet dan gambaran motivasi eksternal atlet setelah mendapatkan pemberitaan di media massa.

Metode yang digunakan dalam penelitian ini adalah metode kualitatif dengan pemeriksaan keabsahan data menggunakan triangulasi teknik pengumpulan data berupa observasi, wawancara dan dokumentasi. Observasi dilakukan saat pandemi dan dibatasi pada beberapa cabang olahraga selama 1 bulan mengenai aktivitas latihan atlet. Selanjutnya wawancara dengan dua puluh empat informan yang terdiri dari sepuluh informan utama dari sepuluh cabang olahraga individu yang berdomisili di Kabupaten Banyumas kemudian empat belas informan pendukung adalah sepuluh pelatih dan empat pekerja jurnalistik. Selanjutnya dokumentasi berupa foto-foto kegiatan atlet saat mengikuti latihan. Langkah selanjutnya adalah menuangkan hasil triangulasi data kedalam paragraf naratif.

Hasil penelitian menunjukkan bahwa pemberitaan media massa berpengaruh pada motivasi atlet. Pemberitaan positif menambah semangat dan motivasi, sedangkan pemberitaan negatif dimaknai positif sebagai bentuk kritik agar bisa lebih baik di pertandingan berikutnya. Gambaran motivasi eksternal pada atlet setelah mendapatkan pemberitaan media massa di mulai dari pengaruh pemberian penghargaan dan respek dari orang lain, pengaruh ingin mengembangkan diri dan prestasi yang lebih tinggi hingga kebutuhan sosial saling berkaitan satu sama lain dan bersama-sama membangun motivasi.

Simpulan yang dapat ditarik dari penelitian tersebut yaitu pemberitaan media massa dipersepsikan secara positif sebagai penambah motivasi dan gambaran motivasi eksternal pada atlet setelah mendapatkan pemberitan media massa saling berkaitan satu sama lain membangun motivasi. Dari hasil penelitian diharapkan atlet tetap memiliki motivasi dalam diri yang kuat terlepas dari ada atau tidaknya pemberitaan media massa dan setelah mendapatkan sorotan media sebaiknya atlet tetap rendah hati dan tidak sombong dengan ketenaran sesaat.
Manajemen Kolam Renang di Kabupaten Kebumen Tahun 2020
Authors: Darmawan M. Iqbal Faiz , Hartono Mugiyo
Published: October 2023

The purpose of this study was to find out how to plan swimming pools in Kebumen Regency in 2020, To find out how to organize swimming pools in Kebumen Regency in 2020, To find out how to move swimming pools in Kebumen Regency in 2020, To find out how to supervise swimming pools in Kebumen Regency in 2020. 2020. This research is a qualitative research, the method used to collect data is interviews. The subjects in this study were the owners, managers and visitors of swimming pools in Kebumen Regency. The data analysis technique used is descriptive analysis in a narrative manner. Planning for swimming pool management in Kebumen Regency is done quite well, each swimming pool has a short, medium and long term plan. The organization of swimming pool management in Kebumen Regency is still not going well, some swimming pools do not have a management organizational structure. The implementation of swimming pool management in Kebumen Regency is going quite well, every employee and employee is working satisfactorily. Supervision carried out by swimming pool owners in Kebumen Regency is carried out by verbal coordination, reporting is carried out only based on bookkeeping.
Pengaruh Split ‘V’ Stretch terhadap Kemampuan Servis Atas Double Event pada Atlet PSTI Kabupaten Demak
Authors: Dzulfiqor Muhamad , Raharjo Agus
Published: October 2023

This study aims to determine the effect of the split 'v' stretch and split with the help of friends on the service results for the double event for PSTI athletes in Demak Regency in 2021. The method used was experimental with a population of 24 athletes and the sample used was all male sepaktakraw athletes in Demak Regency (total sampling). The test instrument uses Solomon's top service skill test instructions. The data analysis technique uses the SPSS25 calculation with the paired sample test method with the provisions of the Sig value. (2-tailed) < 0.05 then H0 is rejected and Ha is accepted (there is an effect). The results of the research hypothesis show; (1) The results of the calculation through spss with the paired sample test method are known to have an average (mean) pretest of -3250 this value shows the difference between the mean value of the experimental group 1 pretest and the posttest mean. Rated Sig. (2tailed) ie 1.764 > 0.05 (no effect). (2) The results of the calculation through spss with the paired sample test method are known to have an average (mean) pretest of -3000 this value shows the difference between the mean value of the experimental group 2 pretest and the posttest mean. Rated Sig. (2 tailed) that is 0.005 < 0.05 (no effect).
Peran Orang Tua, Atlet, Klub, Masyarakat, KONI, dan Pemerintah dalam Perkembangan Olahraga Senam Lantai (Artistik) di Kabupaten Rembang
Authors: Riana Dewi Wahyu , Setyawati Heny
Published: October 2023

ABSTRACT

Dewi Wahyu Riana. 2021. The Role of Parents, Athletes, Clubs, Communities, Koni, and The Government in the Development of Floor Gymnastics (Artistic) in Rembang Regency. Final project, Physical Education, Health and Recreation, Faculty of Sports Sciences, State University of Semarang. Advisor: Dr. Heny Setyawati, M.Si.

Keywords: Development of Gymnastics

The background of this research is the lack of development of floor gymnastics (artistic) in Rembang Regency. The purpose of this research is to find out the role of parents, athletes, clubs, communities, koni and the government in the development of floor gymnastics (artistic) in Rembang Regency.

            This study uses qualitative methods, the subjects of this study are parents of athletes, athletes, coaches, communities, KONI, and the government of Rembang Regency. Data collection techniques use observations, interviews, and documentation.

            The results of this study found that the role of the athlete's parents entirely allowed their children to follow the sport of floor gymnastics (artistic), but some parents were less assertive in disciplining children. For athletes, the obstacles complained about are about inadequate facilities and infrastructure. From the coach is the difficulty of regenerating athletes due to the lack of willingness from children to train and the lack of strictness of parents, besides that facilities and infrastructure are inadequate. From the community supports the existence of floor gymnastics (artistic), but the lack of socialization makes floor gymnastics (artistic) less desirable. From KONI and the government the lack of direct surveys to training grounds makes this sport less noticed.

The conclusion of this study that some parents are less assertive in disciplining children. From athletes obstacles complained about facilities and infrastructure. From the coach is the difficulty of regenerating athletes, the lack of strict parents, inadequate facilities and infrastructure. From the community supports the existence of floor gymnastics, but the lack of socialization makes floor gymnastics (artistic) less desirable. From KONI and the government the lack of direct surveys to the training ground. The advice given by researchers is 1) The parents of athletes are expected to support and support their children to perform better. 2) For athletes more passionate in training and responsible. 3) The coach is expected to remain passionate and patient in training. 4) Society should encourage and participate more in supporting the achievements of athletes. 5) The role of the government is expected to be more optimal in fostering the sport of floor gymnastics (artistic).
Pengaruh Latihan Skipping dan Naik Turun Tangga Terhadap Tinggi Loncatan Pada Atlit Bola Voli Klub Tunas Kabupaten Tegal
Authors: Pratama Lucky Febri , Wahyudi Agung
Published: October 2023

The purpose of this study was to determine the effect of skipping exercises and going up and down stairs on the vertical jump height of volleyball athletes at Tunas Tegal Club. The method used in this study is experimental, with a "two group pre-test post-test design" design. The sample was divided into 2 groups, namely the skipping group and the up and down stairs group. The population in this study were all volleyball athletes at the Tunas Tegal club, which amounted to 14 athletes. The results of this study indicate that: (1) There is an effect of Skipping exercise, with the value of Sig. (2-tailed) of 0.000 < less than the significant level of 0.05, then the results of the hypothesis decision are accepted. (2) There is the effect of training up and down stairs with sig. (2-tailed) of 0.000 with a significant level of <0.05, then the results of the hypothesis decision are accepted. (3) There is a difference between skipping exercise and up and down stairs with sig. (2-tailed) of 0.002 with a significant level of <0.05, then the results of the hypothesis decision are accepted. Based on the post-test average obtained, skipping exercise is 38.85 and up and down stairs exercise is 36.14. The conclusion in this study is that skipping exercises are very good for athletes to use during training, and this skipping exercise is more effective for success in vertical jump heights, especially for volleyball athletes at the Tunas Tegal club.
Penggunaan Sarana Prasarana untuk Meningkatkan Prestasi pada Atlet Bola Basket di Club Ranggajati Cirebon
Authors: Handayani Hani , Nurharsono Tri
Published: October 2023

The purpose of this study was to determine the use, maintenance, and supervision of the infrastructure. This study uses interviews and observations and then triangulates the data to determine the use, maintenance, and supervision of infrastructure. The result of this study is the utilization of the facilities and infrastructure of the Ranggajati Basketball Club to provide facilities according to standards, except for non-standard fields and shoes that are still owned by athletes. For infrastructure maintenance, the Ranggajati club is good. Facility maintenance is carried out by cleaning and periodic inspections of the basketball court and hoop infrastructure. Supervision of the facilities and infrastructure of the Ranggajati basketball club is carried out to evaluate the findings of the facilities and infrastructure so that they become reference materials in treatment. The local government must review the procurement of basketball courts in Gor Ranggajati according to national standards. Local governments are also expected to pay special attention to other sports so that they can develop and reap achievements.
Pelaksanaan Pembelajaran PJOK Materi Pencak Silat pada Masa Kebiasaan Baru Pandemi Covid-19 di SMA Negeri 1 Lasem
Authors: Andrian Teguh Wahyu , Setiawan Ipang
Published: October 2023

Abstrak

Penelitian bertujuan untuk mengetahui proses Pelaksanaan Pembelajaran PJOK Materi Pencak Silat Pada Masa Kebiasaan Baru Covid-19 di SMA Negeri 1 Lasem. Metode yang digunakan adalah deskriptif kuantitatif dengan pendekatan survey. Analisis yang digunakan yaitu statistik deskriptif. Populasi dalam penelitian ini adalah di SMA Negeri 1 Lasem. Sampel yang digunakan adalah 4 guru pendidikan jasmani SMA Negeri 1 Lasem dan 72 Murid. Instrumen pengambilan data menggunakan observasi, kuesioner dan dokumentasi. (1) Pelaksanaan pembelajaran PJOK materi pencak silat pada masa kebiasaan baru pandemi Covid-19 di SMA Negeri 1 Lasem termasuk dalam kategori sedang dengan presentase 70%. (2) perencanaan pelaksanaan pembelajaran pjok materi pencak silat pada masa kebiasaan baru pandemi covid-19 di Sma Negeri 1 Lasem masuk dalam kategori baik dengan presentase 30%. (4) evaluasi pelaksanaan pembelajaran pjok materi pencak silat pada masa kebiasaan baru pandemi covid-19 di Sma Negeri 1 Lasem masuk dalam kategori sedang dengan presentase 66% . pelaksanaan pembelajaran pjok materi pencak silat pada masa kebiasaan baru pandemi covid-19 di Sma Negeri 1 Lasem telah berjalan dengan cukup baik, karena  telah berhasil menerapkan 3 kesatuan tersebut namun alangkah lebih baiknya lagi apabila terus meningkatkan mutu dan kualitas pembelajaran.

Abstract

This study aims to determine the process of implementing adaptive physical education learning at SMPLB in Semarang Regency. The method used is descriptive quantitative with a population of 5 SMPLB and the sample used in all adaptive physical education teachers in Semarang Regency is 5 teachers (stratified random sampling). The test instrument uses observation, questionnaires and documentation. The analysis technique used the percentage score formula and the descriptive analysis criteria table percentage from Mohammad Ali in 1993. The results showed (1) the implementation of adaptive physical education learning at SMPLB in Semarang Regency was included in the good category with a percentage of 60%. (2) learning planning for adaptive physical education at SMPLB in Semarang Regency is in the good category with a percentage of 60%. (3) the process of implementing the SMPLB adaptive physical education learning process in Semarang district is included in the very good category with a percentage of 80%. (4) evaluation of adaptive physical education learning at SMPLB in Semarang Regency is included in the good category with a percentage of 80%.. The implementation of adaptive physical education learning at SMPLB in Semarang Regency has been going well, because it has succeeded in preparing and implementing 3 units, namely planning, process, and evaluation in learning.
On the uniform distribution of endomorphisms of s-dimensional torus, II
Authors: Kryžienė Birutė , Misevičius Gintautas
Published: October 2023

There is not abstract.