bluuebunny/crossref_metadata_2025 huggingface dataset:
Characterisation of fiber lay-up and defects in CFRP using Talbot-Lau grating interferometry
Authors:   Upper Austrian University of Applied Sciences (FH OÖ), Senck Sascha ,   Aerospace & Advanced Composites GmbH (AAC), Scheerer Michael ,   Upper Austrian University of Applied Sciences (FH OÖ), Plank Bernhard ,   Upper Austrian University of Applied Sciences (FH OÖ), Hannesschlaeger Christian ,   Upper Austrian University of Applied Sciences (FH OÖ), Kastner Johann
Published: April 2023

Using Talbot-Lau grating interferometer X-ray computed tomography (TLGI-XCT) we determine the fiber lay-up and quantify defects in loaded carbon fibre-reinforced polymer samples in three dimensions. In contrast to conventional XCT, TLGI-XCT provides three complementary image characteristics during image acquisition: a) attenuation contrast (AC), b) differential phase contrast (DPC), and c) dark-field contrast (DFC). Using a desktop TLGI-XCT system (Skyscan 1294), we visualize fibre bundles, resin rich areas, and defects (cracks and pores) in CFRP laminates that were subjected to low impact energies up to 15 Joules. The combined application of AC, DFC, and DPC volume data facilitates the intuitive visualization of fiber lay-up and the component´s microstructure, including resin-rich areas. Moreover, dark-field images yield a high contrast and a strong signal at interfaces improving the detection of microcracks in relatively large samples whereas these defects are barely detectable using standard XCT.
Quantitative pore network analysis and permeability evaluation of porous carbonate reservoir rocks using X-ray computed microtomography images
Authors:   University of Camerino, Zambrano Miller ,   University of Camerino, Tondi Emanuele ,   Elettra-Sincrotrone Trieste, Mancini Lucia
Published: April 2023

The texture and the morphology of the pore network exerts a primary control in the fluid storage and migration of geofluids within porous carbonates reservoirs. The architecture of the pore network of porous carbonates are highly variable because of primary depositional settings, diagenesis processes and deformation. This issue represents an important challenge for the characterization and exploitation plan of this type of reservoirs in different industries such as, hydrocarbon, ground water and geothermal energy. This type of rocks is widely studied because they represent important reservoirs for geofluids around the globe. However, there are few studies assessing the control exerted by the pore network properties (e.g. porosity, pore size distribution, connectivity, tortuosity) on the permeability.

In this work the control exerted by the pore network on the storage and migration capacity in porous carbonates is evaluated by combining synchrotron X-ray computed microtomography (SR micro-CT) and computational fluid dynamics. The studied rock samples are mainly porous grainstones exposed in south and central Italy. Some samples may content deformation structures (i.e. deformation bands) or may be altered by diagenesis. Previous studies have reported permeability differences and significant variability of the in-situ hydrocarbon distribution in the studied rocks. The SR micro-CT imaging experiments were performed at the SYRMEP (SYnchrotron Radiation for MEdical Physics) beamline (Elettra-Sincrotrone Trieste laboratory, Italy). This beamline was suitable for studying the rocks samples due to its nearly-parallel geometry and a high spatial coherence allowing the phase contrast effects to enhance the visibility of objects with similar linear attenuation coefficients. In this study, the selected spatial resolution of the images is variable (1.0-9.0 μm) depending on the grain size distribution of the rock sample.

The SR micro-CT images were used for both performing a quantitative pore network analysis of the studied rock samples and performing computational fluid dynamics experiments. These experiments consist in simulating a pressure-driven flow by using the lattice-Boltzmann method (LBM) with multiple relaxation time (MRT) approach. This method generates viscosity-independent results of permeability. The permeability of the volume was calculated using Darcy’s law once steady conditions were reached. To evaluate isotropy, the results of permeability and the pore network properties were calculated in three dimensions. The results indicate that deformation and diagenetic processes may have and important impact on the pore network properties and therefore on storage (porosity) and migration (permeability) capacity of the studied rocks.
Exploratory research into reduction of scatter and beam hardening in industrial computed tomography using convolutional neural networks
Authors:   Catholic University of Leuven (KU Leuven), Pauwels Ruben ,   Catholic University of Leuven (KU Leuven), Cao Wenchao ,   Southwest Jiaotong University, Wang Bo ,   Tsinghua University, Xiao YongShun ,   Catholic University of Leuven (KU Leuven), Dewulf Wim
Published: April 2023

Owing to recent advancements in the field of machine learning, such as deep convolutional neural networks (CNN), new applications in image processing have become feasible. The aim of this study was to explore the use of CNNs for the correction of X-ray scatter and beam hardening in industrial computed tomography. Through simulation, a large heterogeneous set of radiographs was produced, comprising monochromatic and polychromatic X-ray spectra with or without simulated scatter. This data was used to train three CNNs: a single network in which the overall effect of scatter and beam hardening is estimated, as well as a dual network in which both effects are estimated separately (i.e. scatter correction first, followed by beam hardening correction). Application of the trained CNNs on testing data showed superior performance for the dual network, at the cost of a increased training time.
Process characterization for molding of paper bottles using computed tomographyand structure tensor analysis
Authors:   Technical University of Denmark (DTU), Saxena Prateek ,   Technical University of Denmark (DTU), Bissacco Giuliano ,   Technical University of Denmark (DTU), Gundlach Carsten ,   Technical University of Denmark (DTU), Andersen Dahl Vedrana ,   Technical University of Denmark (DTU), Himmelstrup Trinderup Camilla ,   Technical University of Denmark (DTU), Bjorholm Dahl Anders
Published: April 2023

Packaging products find their significance in almost all classes of consumer goods and products. The use of plastic and metal

based packaging for beverages is highly dominant. However, there is a constant urge for development of eco-friendly packaging

alternatives. The paper focuses on characterizing an inflatable core assisted paper bottle molding process with respect to the

obtained fiber distribution in the bottle. Distribution of paper fibers affect product characteristics such as thickness and mechanical

strength of the bottle. Assessment of fiber orientation using structure tensor analysis is therefore performed. The results

confirmed non-uniform fiber compaction in the paper bottle. This gives rise to non-conformities such as non-uniform thickness

distribution. The approach discussed in the work can be used as a Non Destructive Testing technique to evaluate the quality of

paper bottles.
An experimental study on segmentation in X-Ray Computed Tomography
Authors:   Politecnico di Milano, Moroni Giovanni ,   Politecnico di Milano, Petrò Stefano
Published: April 2023

X-Ray Computed Tomography is an emerging technology for geometric inspection, in particular when complex and internal
surfaces are involved. The typical work-flow for an X-Ray Computed Tomography inspection includes scanning the part, reconstructing
the volume, segmenting it by creating a surface, comparing the generated surface to the nominal geometry, and stating
the inspection result (e.g. conformance to some specification).
In particular, the segmentation step has been demonstrated critical, greatly influencing the measurement result (both randomly
and systematically), and then vastly affecting the uncertainty. In this work, we propose experimental evidence on how the choice
of the segmentation method affects the measurement result.
Task-Specific Acquisition Trajectories optimized using Observer Models
Authors:   Technical University of Munich (TUM), Bouhaouel Fehmi ,   Siemens AG,  Corporate Technology (CT), Bauer Fabian ,   Technical University of Munich (TUM), Grosse Christian U.
Published: April 2023

Scan time is a crucial factor in industrial computed tomography (CT). With modern computers performing reconstructions in seconds or minutes, the duration for the projection acquisition, which is often in the order of hours, becomes the limiting factor. Therefore, it is desirable to reduce the number of projections in order to cut costs or allow for new applications, such as inline CT. So far, many different approaches mostly targeting the reconstruction method have been performed to optimize the outcome for undersampled data, but only few work has been conducted concerning the scan planing. Nevertheless, the commonly used circular standard-trajectories for image acquisition are highly inefficient since they do not consider the geometry of the inspected objects. It has already been shown that using workpiece-tailored instead of conventional circular trajectories can shorten scan times significantly. In this work we present an observer model based algorithm that has previously been applied in medical and industrial studies and extend it in several aspects. Subsequently, we focus on comparing different observer models that have not been used for this optimization yet and evaluate their performance for identifying valuable projections that contribute most to the reconstructed image.
How much Influences Image Quality the Form Error in Industrial X-Ray CT?
Authors:   YXLON International GmbH, Matern Dierck ,   YXLON International GmbH, Töpperwien Mareike
Published: April 2023

For dimensional metrology using X-ray computed tomography (CT), the surface of an object is of importance. Measurements are performed on it, for example, to evaluate the distance between two points, or the specific form. In CT, the determination process of the surface is performed on voxel data. This voxel data is afflicted by noise and sharpness of the system. While sphere centres are computed using a huge number of voxels, the elements used to establish the surface are limited. Hence, noise becomes more of an issue for evaluating forms, or measuring between just a limited number of points. As the surface is determined by following the edge, it is afflicted by sharpness, too: the less sharp the CT system is, the more the curve from the material to the outside diverges from an ideal edge, the more voxels are within the range of the critical values to determine the surface, and therefore the influence of noise on the surface is increased. In this paper, measurements and simulations are performed to determine the relationship of those two measures in order to get closer to a prediction of measurement uncertainties.
Voxel Size Calibration for High-resolution CT
Authors:   Brno University of Technology (BUT), Zemek Marek ,   Brno University of Technology (BUT), Blažek Pavel ,   Czech Metrology Institute (CMI), Šrámek Jan ,   Brno University of Technology (BUT), Salplachta Jakub ,   Brno University of Technology (BUT), Zikmund Tomáš ,   Brno University of Technology (BUT), Klapetek Petr ,   Rigaku Corporation, Takeda Yoshihiro ,   Rigaku Corporation, Omote Kazuhiko ,   Brno University of Technology (BUT), Kaiser Jozef
Published: April 2023

In cone-beam X-ray computed tomography (CT), distances between the source, object, and detector influence the visual fidelity and voxel size of a reconstructed volume. Calibration using reference objects is an appropriate tool for preventing errors in the estimates of these distances. There is, however, a lack of such objects for high-resolution systems with a small field of view (FoV). In this work, we propose a method to measure the distances mentioned above, improving the determination of voxel size. We use a custom reference object suitable for a FoV of around one millimeter. Many approaches have been developed for this calibration task and discussed in the literature, but none apply to CT scanners with a small FoV and a cone-beam magnification close to one. The proposed method thus aims to provide a calibration procedure for such devices. A Rigaku Nano3DX CT scanner has been calibrated through this method and used for practical validation of the method's accuracy. Results have shown that this approach allows for accurate calibration, which leads to improvements in reconstruction quality and accuracy of voxel size determination.
Studies of CT Applications to Development of Technologies for Space Systems Using Gaseous Propellant
Authors:   AVIO Propulsione AeroSpaziale (S.p.A), Tosti Elena
Published: April 2023

AVIO is a Company leader in manufacturing of products for space primary propulsion. In particular, AVIO production covers Solid Propellant Motors manufacturing for European launchers ARIANE and VEGA. Also, cryogenic stage made at AVIO are installed on these launchers and then research is also involved in development of systems used for liquid propellant applications. In this research new technologies as Additive Manufacturing are well addressed and in this effort a CT technique used as NDT, but also as metric tools, has been investigated. Results are presented in this paper.
RESEARCH ON DESCRIPTION OF ACUTE APPENDICITIS OF ULTRASONOGRAPHIC CHARACTERISTICS
Authors: Nguyen Kim Ngan , Nguyen Thi Giao Ha , Pham Nguyen Nhu Phuong , Nguyen Thanh Tuan , Nguyen Nhan Tho , Nguyen Trong Kha
Published: April 2023

Background: Acute appendicitis is one of the most common causes of lower abdominal pain leading patients to admit the emergency department. Besides those developed paraclinical tests, ultrasound is the priority to support the diagnosis. Objectives: To survey and update the ultrasonographic characteristics of acute appendicitis in diagnosis at Can Tho University of Medicine and Pharmacy Hospital. Materials and methods: A cross-sectional descriptive study of 115 acute appendicitis patients diagnosed at Can Tho University of Medicine and Pharmacy Hospital from December 2021 to July 2022, using SPSS 20 software to analyze data. Results: Among 115 patients that were diagnosed with acute appendicitis by ultrasound, the right iliac fossa was the most frequent location of the appendix (98.3%) and 1.7% of patients with acute appendicitis located behind the cecum. The direction signs suggested acute appendicitis on ultrasound were described by target sign and finger sign at 100%, appendiceal diameter >= 6mm at 97.4% and the average appendiceal length was 7cm ± 2cm. The indirection signs were fluid around the appendix (9.6%), fluid around right iliac fossa (4.3%), fecal stones in the appendix (8.7%), fluid in the appendix (16.5%), infiltrating around the appendix (74.8%) and lymph nodes response (7.8%). Conclusion: Our study updates data about acute appendicitis ultrasonographic image characteristic figures as well as a reference for clinical doctors to diagnose acute appendicitis by ultrasonography.
A STUDY ON RISK FACTORS OF TOXOCARA SEROPOSITIVITY PREVALENCE AND THE RESULTS OF TOXOCARIASIS TREATMENT WITH ORAL ALBENDAZOL IN CHRONIC URTICARIA AT CAN THO DERMATO-VENEREOLOGY HOSPITAL IN 2021
Authors: Lac Thi Kim Ngan , Quach Ngoc Linh , Nguyen Thi Thuy Trang , Pham Thanh Thao , Huynh Van Ba
Published: April 2023

Background: Chronic urticaria (CU) is defined by recurrent episodes lasting for six weeks or more and generally characterized by the sudden appearance of hives (wheal), angioedema or both. Most are idiopathic, however, one of the causes of chronic urticaria can be parasitic infection, especially Toxocariasis. Albendazol is used as a treatment for Toxocariasis. Therefore, the detection of causes, risk factors and specific treatment of the causes helps to solve chronic urticaria. Objectives: (1) To determine of Toxocara seropositivity in patients with chronic urticaria and identify the risk factors for toxocariasis; (2) To evaluate the results of oral albendazol in the treatment of toxocariasis in chronic urticatia. Materials and Method: A descriptive cross-sectional study of 66 chronic urticaria patients who had the result of serology for Toxocara. Results: The seroprevalence of Toxocaraiasis in this population was 19.7%. Factors such as a history of consuming the raw vegetables, raising dogs and cats habit or soil-contacting frequently were at higher risk of toxocariasis in patients with chronic urticaria. Clinical symptoms such as itching and hives in patients were significantly reduced. 30.8% of patients had ELISA results (-) after 3 months of completing treatment; 23.07% of patients had liver dysfunction; and 15.4% of patients reported side effects of epigastric pain or digestive disorders during treatment. Conclusion: The seroprevalence of Toxocaraiasis in this population was 19.7%. Several factors have been identified to be associated with Toxocara seropositivity. Albendazol in the treatment of Toxocara infections is highly effective and relatively safe.
SOCIOECONOMIC FACTORS ASSOCIATED WITH TOOTH EXTRACTION AT CAN THO UNIVERSITY OF MEDICINE AND PHARMACY HOSPITAL IN 2021
Authors: Le Vu Phuong Khanh , Huynh Le Nghia Hiep , Bui Thi Ngoc Man
Published: April 2023

Background: Tooth loss can lead to occlusal disorders and temporomandibular joint issues, resulting in pain and deteriorating chewing ability. Oral health problems affect health-related quality of life, especially anxiety, distress, and shame. However, the number of studies describing these effects in Vietnam was still limited. Objectives: To analyze of the relationship between dental status and socioeconomic factors in patients with tooth extraction. Materials and methods: A descriptive cross-sectional study of 200 tooth extraction patients aged 18 years and older was conducted at Can Tho University of Medicine and Pharmacy Hospital. Data were analyzed using SPSS 20's Frequency test, Chi-Square test, and Fisher's Exact test. Results: 256 teeth were extracted, in which the main reason was misaligned teeth (38.28%), decayed teeth (25.39%), and retained roots (12.89%). The extraction rate of females (63.32%) was higher than that of males (36.68%), and that of urban patients (71.43%) was higher than that of rural patients (28.57%). People who brushed their teeth less than twice a day, and did not have dental visits in the past 12 months accounted for the highest proportion (92.5%,58.5%). Low education level was the reason for the prevalence of oral diseases, while higher education level played a preventive role (p=0.046). In the elderly group, the proportion of patients with tooth extraction due to oral disease increased (p=0.002). Conclusions: A patient had less than two teeth extracted on average. Tooth decay and misaligned teeth were the most common causes of extraction. Educational status and place of residence were considered to be significant factors influencing the reasons for tooth extraction.
DENTAL CARIES AND ORAL HYGIENE STATUS AMONG STUDENTS AT VO TRUONG TOAN ELEMENTARY SCHOOL, NINH KIEU DISTRICT, CAN THO CITY IN 2021
Authors: Dang Quang Vinh , Dang Vinh Quang , Ngo Thi Thanh Hoa , Nguyen Pham Truc Thanh , Nguyen Thi Nhu Y , Nguyen Tuyet Nhung
Published: April 2023

Background: Dental caries is a multifactorial and dynamic disease caused by damage to dental hard tissues. It is known as the most common disease of oral health conditions in school-aged children. Caries can affect children’s quality of life, such as studying, recreational activities, and psychosocial well-being. In recent years, some studies done in other provinces of Vietnam reported that the rate of dental caries in primary and permanent dentition was still high. Objectives: To determine the prevalence, indices of dental caries, and oral hygiene status among students from Grade 1 to Grade 5 at Vo Truong Toan elementary school, Ninh Kieu District, Can Tho City in 2021. Materials and methods: A cross-sectional descriptive study was conducted on students from Grade 1 to Grade 5 at Vo Truong Toan elementary school, Ninh Kieu District, Can Tho City in the 2020 – 2021 academic year. Results: A total of 288 students (6 – 11 years of age) participated in this study with the prevalence of caries in all teeth, deciduous dentition, and permanent dentition were 94.8%, 89.9%, and 44.4%, respectively. The overall mean decayed, missing, and filled teeth index was 6.83 ± 3.96, the overall mean decayed, missing, and filled surfaces index was 11.78 ± 10.08, the overall mean significant caries index was 11.35 ± 2.14, and the overall mean untreated caries index was 0.40 ± 1.06. 78.8% of students had good and fair oral hygiene without statistically significant association with gender or age groups (p > 0.05). Conclusions: This study has shown the high prevalence of caries, so the community should carry out preventive solutions to improve correct perceptions and actions.
CARING OUTCOMES AND RELATED FACTORS AMONG PATIENTS DIAGNOSED WITH VIRAL HEPATITIS IN CAN THO GENERAL HOSPITAL
Authors: Nguyen Thi Huynh Mai , Tran Thi Truc Linh , Ngo Thi Dùn , Nguyen Thi Thanh Truc , Nguyen Hong Thiep , Nguyen Thi Ngoc Han
Published: April 2023

Background: Viral hepatitis is an inflammatory condition that causes liver damage. It is a major public health problem globally, especially in developing countries. Patients with viral hepatitis have torse physical and psychological health status, and hepatitis is also a burden on family finance and the healthcare system. Effective nursing care is essential to decrease complications, re-hospitalization, mortality rate, and treatment costs and improve the quality of life for hepatitis patients. However, there was inadequate research quality of nursing care for viral hepatitis patients. Thus, it is important to conduct a study regarding caring outcomes which might be useful in developing nursing interventions to provide high-quality care for patients diagnosed with viral hepatitis. Objectives: This study aims to examine the caring outcomes and indicates its related factors among viral hepatitis patients. Methods: A descriptive cross-sectional design was applied for this study to conduct 160 inpatients in Can Tho General Hospital. The self-report questionnaires assessed caring outcomes, including 5 domains and 21 items. Results: The findings indicated that patients' good caring outcomes rate was 87.5%. In detail, health education showed the highest scores, while direct care and observation were the lowest. The study found that comorbidity significantly correlated with outcomes of provided care among viral hepatitis patients. There was no relationship between patients’ caring outcomes and their demographic characteristics. A negative correlation was presented between patients’ comorbid condition of diabetes type 2 and their caring outcomes. Conclusion: The incidence of satisfied caring outcomes among viral hepatitis patients was high. Patients’ comorbid condition was associated with their caring outcomes. Health education should be focused on order better care for patients who are diagnosed with viral hepatitis.
ROBOTIC TRANSTHORACIC ESOPHAGECTOMY VERSUS THORACOSCOPIC ESOPHAGECTOMY IN COMBINED WITH LAPAROSCOPY FOR ESOPHAGEAL CANCER
Authors: Lam Viet Trung , Tran Vu Duc , Tran Phung Dung Tien , Nguyen Vo Vinh Loc
Published: April 2023

Background: Extended mediastinal with bilateral recurrent laryngeal nerves (RLNs) lymph node dissection (LND) is critical to curative surgery in the treatment of esophageal squamous cell carcinoma (ESCC). Some reports in Robotic transthoracic esophagectomy (RTE) have some advantages over Thoracoscopic esophagectomy (TE) in increasing the exposure and accuracy of mediastinal LND. However, published data was still limited. Objectives: To evaluate early results of RTE combined with laparoscopy to treat ESCC. Methods: This was a prospective nonrandomized comparative study. All patients who underwent RTE or TE for esophageal squamous cell carcinoma were included in the study. The primary endpoints were operation results, morbidity, and mortality. The secondary endpoint was early oncological results, including lymph node harvested, lymph node metastasis, short-term local recurrence, and survival time. Results: From 8/2018 - 8/2020, at Cho Ray Hospital, we performed 109 cases of esophagectomy for esophageal SCC, of which 19 cases (17.4%) were RTE (group 1), and the other 90 cases (82.6%) were TE (group 2). There was no statistical difference in the staging of group 1 compared to group 2, with predominant cases at stages IB, IIA, and IIB (68.5% vs. 54.4%). Group 1 had a longer operation time than group 2 at the thoracic phase (480 (420-540) vs. 410 (380-450), p=0.001, Mann-Whitney test). Left LRN exposure was better in the RTE group than the TE group; however, LRN injuries seemed to be increased with the RTE group (p=0.028 Fisher’s exact test), probably due to the short learning curve. There was also no difference in the number of mediastinal lymph nodes harvested, including lymph nodes along bilateral LRN. Conclusion: RTE combined with laparoscopy is feasible, safe, and effective in treating esophageal SCC. RTE could be a good option in transthoracic esophagectomy for ESCC.
Ailede Akıllı Telefon Bağımlılığı Ölçeği Geliştirme Çalışması
Authors: YILDIRIM Nuray , ŞAD Süleyman Nihat
Published: April 2023

Bu çalışmada ailede (ebeveyn ve çocuğun) akıllı telefon bağımlılığını ölçebilmek için geçerli ve güvenilir bir ölçme aracı geliştirilmesi amaçlanmıştır. Çalışma kapsamında kullanılan veriler iki farklı gruptan toplam 677 öğrenci velisinden toplanmıştır. İlk grup olan 288 katılımcıdan elde edilen verilere açımlayıcı faktör analizi (AFA), ikinci grup olan 389 katılımcıdan elde edilen verilere ise doğrulayıcı faktör analizi (DFA) uygulanmıştır. Literatür taraması sonucunda hazırlanan 54 aday madde, uzman görüşleri sonucunda 34 maddeye indirgenmiştir. Bu maddelere uygulanan açımlayıcı faktör analizi sonucunda “veli boyutu” ile “çocuk boyutu” olmak üzere iki faktörden oluşan 20 maddelik yapıya ulaşılmıştır. Ölçeğin ilk faktörü varyansın %33,52’sini, ikinci faktörü ise varyansın %26,43’ünü açıkladığı belirlenmiştir. Ölçeğin tamamının ise toplam varyansın yaklaşık %60’ını açıkladığı gözlenmiştir. DFA ile iki faktörlü yapı doğrulanmış, uyum indekslerinde “iyi” ve “kabul edilebilir” düzeyde olduğu bulunmuştur. Ölçeğin güvenirliği, iç tutarlılık katsayısıyla hesaplanmış ve Cronbach alfa katsayısı ölçeğin tamamı için 0.928, “Çocuk Boyutu” için 0,936; “Veli Boyutu” içinse 0,911 hesaplanmıştır.
Methodology for the development of precision-target movements in the training of young baseball players
Authors: Kozina Zhanneta , Gadzhiev A. , Malachovecryi R.
Published: April 2023

Purpose: to determine the impact of special precision-targeted exercises on the level and relationship of psychophysiological indicators, physical and technical fitness of baseball players at the initial stage of training.

Results. The author's method of development of precision-target movements with the use of special exercises performed with balls of different sizes and weights has been developed.

It is shown that the application of the author's method of development of precision-target movements has a positive effect on the level of technical and physical fitness, as well as on the structure of complex training of athletes. The positive influence of application of a technique of complex development of precision-target movements on psychophysiological indicators of athletes is shown.

Conclusions. It is shown that the application of the author's method of development of precision-target movements has a positive effect on the structure of training of young athletes: the number of reliable relationships between indicators of psychophysiological functions and indicators of technical and physical fitness.
The factor structure of the preparedness of handball players of different qualifications
Authors: Kozina Zhanneta , Zubko Valeriia
Published: April 2023

Purpose: to determine and compare the factor structure of training of handball players - masters of sports and first-graders.

Results. In this work the parameters of the structure of training of handball players of different qualifications are specified and specified; for the first time the main factors that ensure the training of handball players of different qualifications have been identified.

Conclusions. The data of the experimental research allow to form the pedagogical thinking of the coaches and the experimenter about the expediency of using the indicators of the structure of training to improve the process of training handball players.
PENGEMBANGAN VIDEO PEMBELAJARAN UNTUK MENINGKATKAN KETERAMPILAN PROSES SAINS SISWA IPA SMP KELAS VII
Authors: Nuha Ulin , Sari Novilia Mita , Utomo Anjar Putro , Wahyuni Sri
Published: April 2023

Penelitian ini bertujuan untuk meningkatkan keterampilan proses sains dengan mengembangkan video pembelajaran untuk materi IPA SMP kelas VII yaitu materi interaksi makhluk hidup dengan lingkungannya. Metode penelitian yang digunakan adalah Research and Development (R&D) dengan menggunakan desain pengembangan ADDIE. Hasil validasi menunjukkan bahwa video pembelajaran yang dikembangkan tergolong dalam kategori sangat baik dan tidak perlu direvisi dengan skor dari masing-masing validator yaitu: (1) 87,5%; (2) 92,5%; dan (3) 97,5%). Hasil keefektifan video berdasarkan data angket siswa menujukkan: (1) sangat setuju sebesar 25,6%; (2) setuju sebesar 59,3%; dan (3) tidak setuju sebesar 15%. Hasil perhitungan N-Gain menunjukkan bahwa keterampilan proses siswa setelah menggunakan video pembelajaran berada pada kategori tinggi (28,1%), kategori sedang (59,4%), dan rendah (12,5%). Secara keseluruhan keterampilan proses sains siswa meningkat sebesar 79%.  Kesimpulan dari penelitian ini adalah video pembelajaran yang dikembangkan dapat dikatakan valid, efektif, dan mampu meningkatkan keterampilan proses sains siswa.

Kata Kunci: Pengembangan, Video Pembelajaran, Keterampilan Proses Sains
ANALISIS KEMAMPUAN PROBLEM SOLVING KONSEP FISIKA PADA MATERI IMPULS MOMENTUM PADA SISWA SMA MUHAMMADIYAH 1 DEMAK
Authors: Nurhayati Titik
Published: April 2023

Penelitian ini bertujuan untuk menganalisis kemampuan pemecahan masalah (problem solving) pada siswa kelas X SMA Muhammadiyah 1 Demak tahun ajaran 2020-2021. Dalam penelitian ini mendapatkan subyek sebanyak 13 siswa yang telah menempuh materi impuls momentum. Penelitian ini menggunakan instrument berupa soal essay yang terdiri dari 5 soal, 3 jenis soal konseptual kemudian 2 soal berupa soal hitungan atau matematis. Data di analisis dengan menggunakan metode deskripsi hasil jawaban siswa yang menjurus ke dalam indikator kemampuan pemecahan masalah yang meliputi kemampuan mengidentifikasi masalah, kemampuan mendefinisikan dan merepresentasikan masalah, kemampuan mengeksplorasi strategi, kemampuan mengaplikasikan strategi, dan kemampuan mengevaluasi solusi. Hasil penelitian ini adalah berupa kemampuan pemecahan masalah siswa pada konsep fisika yang terdapat pada materi impuls momentum. Dari hasil análisis jawaban, siswa kelas X SMA Muhammadiyah 1 Demak sudah baik dalam memecahkan masalah namun dalam penyusunan kata masih kurang tepat. Dengan adanya hasil penelitian ini perlu adanya pengembangan kemampuan pemecahan masalah pada siswa kelas X SMA Muhammadiyah 1 Demak.
PENGARUH WAKTU PENYIMPANAN DAN VARIASI KEMASAN TERHADAP NILAI SUHU DAN KUALITAS FISIK SAWI
Authors: Indreswari Meilody , Nafiusokhib Nafiusokhib , Ahmad Salman
Published: April 2023

Perlakuan dan pengemasan sayuran basah seperti sawi selama proses pengiriman dari petani sampai ke konsumen sangat mempengaruhi kualitas sawi. Agar sawi bisa tahan lebih lama dibutuhkan bahan yang tepat sebagai media pengemas sayuran sawi. Kemasan yang bagus untuk sayuran pengganti plastik adalah daun pisang dan daun jati. Penelitian ini kami membandingkan antara pengemasan dengan daun pisang, daun jati dan tanpa ada kemasan. Perlakuan kemasan di kardu dan di luar kardus. Hasil penelitian diperoleh sawi dengan perlakuan di dalam kardus dengan kemasan daun pisang mengalami pembusukan dalam waktu 7 hari, daun jati 5 hari sedangkan tanpa bungkus selama 4 hari. Suhu akhirnya adalah 30,5 oC pada kemasan daun jati dan daun pisang sedangkan yang tanpa kemasan suhunya 29,5 oC. Sawi dengan perlakuan diluar kardus dengan kemasan daun pisang mengalami pembusukan dalam waktu 6 hari, daun jati 4 hari dan tanpa bungkus hanya 3 hari. Suhu akhirnya 29,5 oC pada daun pisang dan daun jati sedangkan yang tanpa kemasan 28,5 oC. Dari hasil yang diperoleh perlakuan didalam kardus dan dengan menggunakan kemasan daun pisanglah yang  memiliki usia pembusukan yang lama.
PENGEMBANGAN E-MODUL MENGGUNAKAN 3D PAGEFLIP PROFESSIONAL UNTUK MEREMEDIASI MISKONSEPSI SISWA SMP PADA MATERI TEKANAN ZAT CAIR
Authors: Amelia Elga Amelia , Maison Maison , Kamid Kamid
Published: April 2023

Tujuan penelitian ini untuk mengembangkan e-modul pada materi tekanan zat cair untuk meremediasi miskonsepsi siswa. Jenis penelitian ini adalah penelitian  pengembangan dengan menggunakan model ADDIE. Teknik pengumpulan data menggunakan angket untuk validator, guru dan siswa serta tes diagnostik four tier.  Uji efektivitas didapatkan dari analisis hasil pre-test dan post-test siswa berdasarkan kriteria pengambilan keputusan Four tier diagnostic test. Berdasarkan hasil validasi terhadap pengembangan e-modul oleh ahli materi dan ahli media dinyatakan layak, sedangkan hasil respon guru diperoleh persentase 85,71% dalam kategori sangat baik, hasil respon siswa pada ujicoba satu-satu diperoleh persentase 92,67% dalam kategori sangat baik, hasil respon siswa pada ujicoba kelompok kecil diperoleh persentase 88,41% dalam kategori sangat baik. Hasil uji efektifitas siswa mengalami penurunan miskonsepsi dengan signifikan dengan rata-rata persentase sebesar 52%. Hasil uji nonparametrik Wilcoxon menunjukkan hasil z = -2,673 dan Asymp.sig (2-tailed) bernilai 0,008, maka disimpulkan terdapat perbedaan yang signifikan antara nilai  pre-test dan post-test siswa, sehingga dapat disimpulkan bahwa penggunaan emodul efektif dalam meremediasi miskonsepsi siswa SMP dan berdasarkan nilai effect size sebesar r=0,63 yang artinya penggunaan emodul memiliki efek sedang (moderate effect) dalam meremediasi miskonsepsi siswa pada materi Tekanan zat cair.
IMPLEMENTASI MEDIA PEMBELAJARAN FISIKA BERUPA LKPD BERBANTUAN PHET SIMULATION PADA MATERI LISTRIK ARUS SEARAH
Authors: Lesmana Sidik Endri , Marsela Sherin , Rusdiana Dadi
Published: April 2023

Fisika merupakan salah satu pelajaran dengan cakupan materi yang kaya konsep yang bersifat abstrak, sehingga untuk memahami konsep tersebut, peserta didik harus melibatkan semua inderanya. Dalam hal ini, Phet Simulation yang merupakan media pembelajaran yang dilengkapi dengan panduan LKPD dapat membantu guru menyampaikan materi secara lebih praktis dan mudah dimengerti bagi peserta didik. Maka dari itu, penelitian ini bertujuan untuk menilai implementasi media pembelajaran LKPD berbantuan Phet Simulation khususnya pada materi listrik arus searah. Metode yang digunakan pada penelitian ini adalah pre-eksperimen dengan pengambilan data menggunakan kuesioner pre-test dan post-test kemudian akan diolah menggunakan SPSS wilcoxon. Hasil penelitian berdasarkan wilcoxon menunjukkan nilai sig. (two-tailed) = 0,010 < 0,05 sehinga hipotesis diterima dan membuktikan bahwa ada pengaruh yang signifikan terhadap penggunaan LKPD berbantuan Phet Simulation pada materi listrik arus searah.
ANALISIS KEBUTUHAN SISWA SEBAGAI ACUAN MENGEMBANGKAN BUKU PENGAYAAN FISIKA BERKONTEKS KEARIFAN LOKAL PERAHU TRADISIONAL
Authors: Dani Rahma , Jufrida Jufrida , Wijaya Nabilla Eka
Published: April 2023

Penelitian ini bertujuan untuk menganisis kebutuhan siswa terhadap bahan ajar yang digunakan dalam proses belajar fisika. Penelitian ini merupakan penelitian deskriptif eksploratif dengan subjek penelitian seorang guru fisika SMA, 30 siswa jurusan IPA kelas 11 SMA dan seorang perajin perahu. Data penelitian diperoleh dari observasi dan pengisian angket kebutuhan. Hasil observasi menunjukkan bahwa pada pembelajaran fisika lebih banyak berisi teks serta rumus fisika namun dikarenakan waktu pembelajaran yang terbatas disetiap pertemuan membuat guru kesulitan untuk memberikan penjelasan contoh konsep fisika yang terdapat pada kehidupan sehari-hari kepada siswa. Hasil analisis angket menunjukkan siswa membutuhkan bahan ajar berupa buku pengayaan sebagai penunjang dalam proses pembelajaan dan dapat digunakan secara mandiri maupun dengan pendamping guru di Sekolah.
STUDI LITERATUR METODE PYTHAGORAS DALAM PENYELESAIAN SOAL-SOAL TEORI RELATIVITAS KHUSUS EINSTEIN
Authors: Sanusi Erda Nasitah , Haryadi Rudi
Published: April 2023

Materi relativitas khusus merupakan sebuah materi yang dapat dikategorikan sebagai materi yang sulit dalam ilmu fisika. Terbentuknya teori relativitas khusus ini bermula dari penemuan seorang ilmuan fisika yang bernama Albert Einstein. Kesulitan dalam fisika telah dijelaskan oleh Sugiyana di dalam artikelnya. Sugiana, “Fisika merupakan salah satu mata pelajaran yang menimbulkan kesulitan kepada siswa. Hal ini terjadi karena fisika dianggap sebagai mata pelajaran yang banyak memiliki persamaan dan kompleks. kemampuan siswa yang terbatas, dan kurangnya minat terhadap fisika juga telah menambah kesulitan tersendiri dalam mempelajari ilmu fisika”. Menggunakan metode cepat adalah salah satu kategori kemampuan berhitung cepa. Salah satu metode cepat adalah metode Pythagoras yang dapat digunakan untuk memecahkan pertanyaan relativitas khusus.
Pengembangan Kurikulum PAI sebagai Solusi dalam Implementasi Pendidikan Karakter di Sekolah
Authors: Munir Misbahul , Jannah Maulidatul
Published: April 2023

Konteks penelitian ini adalah: pengembangan kurikulum diyakini diduga kuat sebagai solusi dalam mengatasi problematika implementasi pendidikan karkater di Sekolah.

Tujuan penelitian ini adalah mendeskripsikan Pengembangan tujuan kurikulum PAI dan Budi Pekerti, Pengembangan isi/materi kurikulum PAI dan Budi Pekerti,Pengembangan strategi kurikulum PAI, dan Pengembangan evaluasi kurikulum PAI dan Budi Pekertisebagai solusi implementasi pendidikan karakter.

Penelitian ini menggunakan pendekatan kulitatif deskriptif.Jenis penelitiannya adalah library Research.Sumber datanya menggunakan sumber data primer dan sekunder.Teknik pengumpulan datanya adalah observasi dan studi dokumentasi.Analisis datanya adalah analisis kualitatif deskrptif dengan tiga komponen yaitu reduksi data, penyajian data, dan penarikan kesimpulan.Mengecek keabsahan data menggunakan triangulasi data sumber, metode, dan teori.

Kesimpulan penelitian ini adalah:Pertama, Pengembangan Tujuan Kurikulum PAI dan Budi PekertiSebagai Solusi Implementasi Pendidikan Karakter di Sekolahmengacu pada Pertma, Tujuan pendidikan Nasional Tujuan pendidikan Nasional adalah tujuan pendidikan yang tercantum Dalam UU Sisdiknas No. 20 Tahun 2003, Kedua, Tujuan Institusional adalah tujuan yang harus dicapai oleh setiap lembaga pendidikan, ketiga,  Tujuan Kurikuleradalah tujuan yang harus dicapai oleh setiap bidang studi atau mata pelajaran dalam hal ini tujuan pendidikan agama Islam dan budi pekerti.Kedua,Pengembangan isi/ materi kurikulum PAI dan Budi Pekerti sebagai solusi implementasi pendidikan karakter di sekolah meliputi: materi fiqh, akidah akhlak, al-Qur’an hadits, SKI. Materi fiqh berupa fiqh Ibadah, Fiqh Munakahat, Fiqh mu’amalah, fiqh jinayah, fiqh Nisa’, dan Fiqh mawarits. Akidah akhalaq: berupa akhlaq kepada Allah, akhlaq kepada sesama, dan akhlaq kepada alam. Al-qur’an hadits berupa semua ilmu-ilmu yang berkaitan dengan al-Qur’an dan hadits. SKI berupa sejarah yang berkaitan dengan Keislaman mulai dari sejarah peradaban islam, sejarah pendidikan Islam, sejarah social pendidikan Islam, dan semua kajian sejarah yang berkaitan dengan sejarah Islam. Ketiga, Pengembangan Startegi/Metode Kurikulum PAI dan Budi Pekerti Sebagai Solusi Implementasi Pendidikan Karakter di Sekolah pada umumnya meliputi: Strategi pembelajaran yaitu memberi tambahan kegiatan keagamaan.
Efektifitas Pengembangan Bahan Ajar
Authors: Burhanuddin Ainur Rahman , Rizqi Fauzi Azq. Haqiqi
Published: April 2023

Kurikulum 2013 mengamanatkan bahwa terdapat satu pendekatan pembelajaran yang harus digunakan oleh seorang guru dalam proses pembelajaran yaitu pendekatan saintifik. Dalam prakteknya akan muncul permasalahan, terutama pada pelaksanaan kegiatan tahap pertama yaitu kegiatan mengamati. Pada kegiatan tersebut sangat dibutuhkan objek yang bisa diamati. Selama ini yang dijadikan objek pegamatan adalah buku teks melalui proses membaca, tidak sebagaimana mapel sains dengan objek yang kongkret. Berdasarkan latar belakang diatas, peneliti dapat mengetahui permasalah pengembangan buku ajar PAI berbasis saintifik pada materi meneladani perjuangan dakwah Rasulullah SAW di Madinah.

Penelitian ini menggunakan penelitian dan pengembangan (Research and Development), sebuah strategi proses atau langkah-langkah untuk mengembangkan produk baru atau menyempurnakan produk yang sudah ada. Dengan beberapa tahapan: Melakukan analisis produk yang akan dikembangkan, Mengembangkan produk awal, Validitas ahli dan revisi, Uji coba lapangan skala kecil dan revisi produk, dan Uji coba lapangan skala besar dan revisi akhir. populasi adalah siswa kelas X IPS 3 SMAN 1 Asembagus dengan jumlah 32 siswa. Teknik pengumpulan data yang digunakan adalah tes dan nontes. Teknik analisis data yang digunakan adalah analisis produk buku ajar, analisis kuantitatif uji t-test dan uji gain.

Hasil penelitian menunjukkan bahwa (1) Buku ajar berbasis Saintifik memenuhi kriteria layak untuk digunakan dalam kegiatan pembelajaran merujuk pada hasil validasi penilaian para pakar materi dan pakar media, (2) Media pembelajaran berupa buku ajar berbasis saintifik dapat dikatakan efektif digunakan dalam kegiatan pembelajaran, berdasarkan penilaian para pakar dan hasil belajar siswa.
Nilai-Nilai Pendidikan Karakter dalam Peristiwa Isra Mikraj Perspektif Al Qur’an Dan Hadis Sahih
Authors: Surur Miftahus
Published: April 2023

Telling story is one of the most effective learning methods. Stories are very interesting to listen and the lessons can deeply penetrate into the soul. Therefore, the Qur'an encourages Islamic people to take lessons from the stories of the previous people in the pass, as in Yusuf verse 111. Likewise, stories based on historical events of the Prophet Muhammad ﷺ, such as the story of Isra’ Mi’raj. The Isra’ Mi’raj event contains various lessons about good values ​​and good character that are very important for character education for Muslims.

This study aims to describe the good values ​​of character education contained in the Isra’ Mi’raj event in a review of the Qur'an and Sahih Hadith. The type of research used in this study is library research with an interpretive approach and a historical research approach along with content analysis as the analysis technique.

The data was obtained from the literature on the interpretation of the Qur'an and Sahih Hadith. This research is library research with an interpretive approach and a historical research approach along with content analysis as the analysis technique. The data is obtained from the literature on the interpretation of the Qur'an and Sahih Hadith. The Qur'an describes the events of Isra’ Mi’raj in outline, while the Hadith describes it in detail in the frame of a story according to the chronology of events experienced by the Prophet. Isra is the journey of Prophet Muhammad ﷺ from Masjid al Haram to Masjid al Aqṣa at night.
IMPLEMENTATION OF ISLAMIC CHARACTER EDUCATION AT THE TIME OF THE PROPHET MUHAMMAD IN MADINAH
Authors: Tabroni Imam , Purnama Sari Rini
Published: April 2023

During the education period in Medina, it was a continuation of the struggle in Mecca, in Medina the Prophet had experienced ease in the Islamic struggle because previously the people of Medina always waited for the arrival of the Prophet Muhammad, at that time in Medina there were indeed many groups such as Aus , Khazraj , people of Muslims, Jews, Christians, but the Messenger of Allah easily united all these groups under the command of the Messenger of Allah. In various ways, it is done in order to conquer them including using the Qur'an as an educational curriculum, Aqidah as the basis for the material being taught, then using mau'izah hasanah as the method. While in Medina the mosque was very active as a central institution of Islamic education. which is no less important than the achievement of education in Medina, namely the close brotherhood between Muslims and non-Muslims.
STRATEGY TO IMPROVE EDUCATION QUALITY THROUGH GIVING REWARDS TO STUDENTS AT MIN 6 NGANJUK
Authors: Yusuf Muhammad , Vianti Mala Khafita
Published: April 2023

Abstract

 

In the era of globalization, improving the quality of competitive education is very necessary. All problems in education such as not focusing on learning, declining student enthusiasm and so on are challenges for school principals, educators and parents. Therefore, the provision of giving rewards is expected to improve the quality of education. This study focuses on strategies to improve the quality of education through rewards to students along with supporting and inhibiting factors in its implementation. This research uses a qualitative approach with a descriptive type of research. The results of the study show that the strategy for improving the quality of education through the provision of rewards refers to input (preparation of teacher human resources), process (class division, procurement of extracurricular and tutoring, giving rewards that have applied the principles and meet the requirements), output (rewards foster student enthusiasm, and assessment can create output according to the educational goals of the institution) with various supporting factors such as the involvement of several parties, adequate infrastructure, student motivation and sufficient funds. And the obstacles to its implementation are poor time management, urgent interests in school, lack of concern for some students, and lack of full support from parents. Overcome by paying attention to teachers, students and parents who can support the implementation of school activities. And with the implementation of this strategy, the educational process makes it easier for teachers to deliver subject matter, the direct results of education are in the form of student behavior after attending lessons, and the final result of education is the behavior of graduates.
IMPLEMENTASI METODE DIROSATI DALAM MENINGKATKAN KEMAMPUAN MEMBACA AL QUR’AN BAGI ANAK USIA DINI (STUDI KASUS DI TAMAN PENDIDIKAN AL-QUR’AN PONDOK PESANTREN ANAK AL QODIRI JEMBER)
Authors: Mukaromah Ning , Anisah Nur , Surawijaya Bunga
Published: April 2023

Membaca al-qur’an adalah suatu amalan yang berguna bagi umat muslim karena dengan membaca al-qur’an seseorang dapat memahami, menghayati dan mengamalkan isi kandungan yang terdapat di dalam al-qur’an dalam kehidupan sehari-hari. Mengingat pentingnya belajar al-Qur’an, maka harus dikenalkan kepada para santri sejak dini karena pada masa kanak-kanak ini terkandung potensi belajar yang kuat dan besar. Rumusan masalah dalam penelitian ini adalah 1) bagaimana implementasi metode dirosati? 2) bagaimana bentuk evaluasi? 3) bagaimana kelebihan dan kelemahan?. Penelitian ini menggunakan pendekatan kualitatif dengan jenis penelitian deskriptif. Sumber data dalam penelitian ini adalah ustad dan ustadzah TPQ PP Anak Al-qodiri Jember. Instrumen pengumpulan data menggunakan wawancara, observasi dan dokumentasi. adapun hasil penelitiannya 1) Implementasi metode dirosati dalam meningkatkan kemampuan membaca al-qur’an bagi anak usia dini adalah a) Individual atau privat. b) Klasikal-individual. c) Klasikal baca simak. d) Media. 2) Bentuk Evaluasi yang digunakan adalah a) Evaluasi formatif. b) Evaluasi sumatif. c) Evaluasi diagnostic. 3) Kelebihan: a) Metode dirosati ini menggunakan CBSA. b) Penyusunannya lebih praktis. c) Memiliki buku ringkasan tajwid, pedoman hafalan dan panduan do'a-do'a sendiri. dan d) Pembinaan dilakukan selama sebulan sekali. Kelemahan a) Kurangnya media pembelajaran. b) Metode dirosati ini sudah jarang digunakan. c) Menyita banyak waktu dan d) Penciptanya sudah mengeluarkan metode baru lagi yaitu 'Allimna.