Study aim: This study aimed to investigate the effect of the FIFA 11+ injury prevention programme on strength and on muscle strength and landing biomechanical markers of anterior cruciate ligament (ACL) injury during fatigue among youth recreational soccer players. Material and methods: Thirty volunteer participants were assigned to the intervention group (n = 15) and control group (n = 15). The intervention group performed the FIFA 11+ programme as a warm-up activities, while the control group performed unstructured warm-up twice per week for 8 weeks. The data measurements were taken before fatigue simulation (PRE), immediately after simulation (POST5), after 20 min (POST20), and 35 min (POST35) after simulation before and after the completion of the intervention. Five-minute fatigue simulation was used for fatigue induction. Muscle strength was measured using an isokinetic machine during concentric and eccentric contractions of the hamstrings and quadriceps. Meanwhile, landing biomec.....

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This work developed a selectively modified electrode for measuring the Fe(II) ions in continuous integration using voltammetry techniques. The study assessed various aspects, such as linearity, scan rate, repeatability, and real sample analysis. The experiment is performed using differential pulse voltammetry (DPV). The findings of the study indicated that the voltammetry method exhibited a regression line of y = 36.507 ln(x) + 990.73, with a correlation value of 0.9627, with an optimum scan rate of 20 mV/s and good repeatability over five times measurement. On the other hand, when comparing the results using the UV-Vis spectrophotometric technique, the regression equation was found to be y = 0.20438x − 0.06987, with a correlation value of 0.99583. Notably, the voltammetry measurement outperformed the UV-Vis method since it allowed analysis of Fe(II) at concentrations up to 6.35 × 10−4 ppm (or 1.00 × 10−11 M), while the UV-vis measurement could only analyze up to 1.5 ppm (or 2......

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– Experimental activities in physics learning are important to encourage students to interact directly with physical phenomena. This study integrates local culture with technology through an innovative approach to the design of physics experiments. Arduino, a low-cost microcontroller, is extensively utilized for learning physics. The local culture examined in this study is Angklung, a traditional musical instrument from West Java, Indonesia. This study utilizes Arduino with a microphone sensor to design experiments investigating the sound produced by Angklung. The experimental activity aims to determine the frequency generated on each musical instrument on the diatonic Angklung and the factors that influence that frequency. The experimental results show that each musical instrument has a different frequency. Programming on Arduino is easy for students even though students do not have basic programming knowledge. The results of this study can be used as a reference for conducting alte.....

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The main aim of this article was to see the public space of Pesantren as an arena for negotiating Islamic moral ideas and modernity. The practice of dating in Islamic literature is linked to immoral action because it is contrary to Islamic teachings that prohibit relationships outside marriage. It has become an important part of Islamic moral education. Dating in Pesantren is prohibited, and it is a relationship outside marriage. However, there are still many students who develop romantic relationships with members of the opposite sex in the public spaces of Pesantren. Through ethnographic studies, researchers observed Santriwati’s dating practices and interviewed them to determine the moral basis for these actions. Based on these observations at the Pesantren Madrasah Ulumul Qur’an (MUQ) Langsa, the practice of dating was carried out by santriwati by hiding behind buildings and rooms in the Islamic boarding school. This secretive and tactical action was carried out not to confront.....

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In this study we discuss the relationship between the concepts of abundance, peace and painting. After a general look at different definitions and approaches to the concept of abundance, we will choose the cultural and artistic approach and, in this context, take a brief look at the painters who used the concept of abundance together with peace. Then we will look at the style of Florescencism, invented and introduced by the contemporary painter Lida Sherafatmand, and the related paintings that have been shown in many prestigious exhibitions around the world, in the context of one of the main approaches of this style, which is to represent the concept of abundance. The abundance of fresh and bright flowers with vivid and promising colors in Lida Sharafmand’s paintings is formally and conceptually in line with one of the clauses of the Florescencism manifesto, which refers to the concept of abundance as a way to develop peace. The paintings selected and presented in this review have be.....

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The Malaysian Sports School (MSS) is a governmental institution under the purview of the Ministry of Education Malaysia. It is a specialised institution that prioritises sports education and training for exceptionally gifted young athletes. The primary goal of MSS is to create a conducive environment for students to thrive in both academic and athletic pursuits. It is imperative to enhance the domain of sports at the school level in order to optimise the performance and accomplishments of student-athletes across different sports disciplines. Hence, this study aims to investigate the specific problems and obstacles encountered by top-tier coaches at MSS in nurturing gifted student-athletes The study employed the Qualitative Method, specifically utilising the Evolved Grounded Theory approach developed by Strauss and Corbin. Data were gathered from ten elite coaches in five MSS using in-depth semi-structured open interviews, observation, and document analysis. The purpose was to identify .....

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This study examines the efects of washing pretreatments on the chemical characteristics of biomass and the resultant biochar derived from empty fruit bunches (EFBs) of palm oil plantations. We optimized parameters such as washing duration, techniques, and water volume to improve biochar quality. Following the washing pretreatment, the EFBs were subjected to slow pyrolysis at 500 °C for 2 h under a nitrogen atmosphere. In-depth analyses employing techniques like X-ray fuorescence (XRF), X-ray difraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA-DTG), and inductively coupled plasma mass spectrometry (ICP-MS) demonstrated profound changes in the EFB biomass and biochar structure and composition. Specifcally, the sample L-EFB4, soaked in water for 72 h, showed a 67.08% reduction in ash content and a signifcant decrease in potassium content, enhancing the biochar’s.....

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This study is a development research which proposes to create a digital platform to enhance digital literacy concerning landslide disasters for Generation Z. The findings indicate that in Semarang City, Generation Z frequently accesses information from the internet and finds it extremely helpful. However, their knowledge and literacy regarding preparedness for landslide disasters remain low, which highlights their need for a digital literacy platform on this topic. Based on this requirement, the researchers developed the SiAlong platform, short for "Landslide Preparedness Information System". This platform is a website accessible by users on various devices, including Android and iOS smartphones, as well as computers, laptops, PCs, and tablets. To date, the availability of digital platforms for information and education on landslide disasters is very limited. Digital technology is predominantly used for developing sensing systems, detection, prediction, or monitoring of landslide disas.....

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This study investigates biomaterial composites made from a poly(lactic acid) (PLA) polymer matrix and hydroxyapatite (HA) extracted from fish scales (FsHA) for biomedical applications, especially in 3D printing. Fish scale HA is considered a halal alternative to synthetic or bone-derived HA. The research aims to explore the chemical, mechanical, and thermal properties of PLA/FsHA composites. Samples were prepared by melt-blending PLA with varying FsHA weights (10-50 wt%) at 190 °C, followed by hot pressing. Mechanical properties were analyzed using tensile tests, while scanning electron microscopy (FESEM) characterized the morphology of fractured specimens. Fourier transform infrared spectroscopy (FTIR) studied the functional groups between PLA and FsHA. Thermal properties, including glass transition temperature (Tg) and melting temperature (Tm), were investigated using differential scanning calorimetry (DSC). Mechanical analysis revealed that optimal properties were achieved at 20 wt.....

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A series of mixed glass formers (MGF) with varying compositions denoted as (79-x)B2O3-xTeO2-20Li2O-0.5Ho2O3-0.5Yb2O3 (x = 0–50 mol%) were prepared using the melt-quenching technique. This aim of this study was to examine the effect of combining glass formers TeO2 and B2O3 on the structural, DC conductivity, elastic, and optical properties of the glass system. XRD measurements confirmed the amorphous nature of the glass samples. Structural analysis revealed a rivalry between the TeO2 and B2O3 formers. It was observed that the bridging oxygen (BO) indicated by the BO4 functional group decreases gradually at x ≥ 40 mol%, implying that non-bridging oxygen (NBO) units, denoted by BO3, become dominant beyond 40 mol%. The variation in DC conductivity showed a non-linear behaviour upon addition of TeO2, with the conductivity increasing to a maximum value at x = 30 mol% before decreasing at x > 30 mol%. Interestingly, the conductivity showed a slight decline at x = 40 mol%, possibly r.....

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