bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kinematic analysis of the basketball jump shot with increasing shooting distance: comparison between experienced and non-experienced players
Authors: Caseiro André , França Cíntia , Faro Ana , Branquinho Gomes Beatriz 
Published: December 2023

Purpose
Basketball jump shot success is determined mainly by the height, velocity, and angle of ball release. To achieve a successful shot, these variables need to be adjusted according to the player’s position on the court. This study aims to identify the changes in kinematics variables of the basketball jump shot with an increasing shooting distance performed by players with varying skill levels.
Methods
Seventeen male subjects, divided into experienced (N = 9), and non-experienced (N = 8) players, performed three successful jump shots from the free-throw line (4.23 m) and the 3-point line (6.75 m). All attempts were recorded at 120 Hz with a camera perpendicular to the sagittal plane, and the kinematics variables were calculated using Tracker software.
Results
The increase in shooting distance shows a decrease in height and angle of ball release. In contrast, the velocity of ball release increased for both groups at longer distances. Experienced players present a higher mean value of the height of ball release in both distances, which allowed a lower velocity of ball release.
Conclusions
The most meaningful improvement for players training the jump shot technique, is to increase the release height of the ball, jumping higher and shooting the ball near the peak of the jump.
Microstructure and mechanical properties of 3D-printed dental Co-Cr alloys, produced by selective laser melting
Authors: Cherneva Sabina , Petrunov Vladimir , Petkov Vladimir , Bogdanov Vladimir , Simeonova Silviya 
Published: December 2023

Purpose
The aim of present work was to investigate microstructure and mechanical properties of 3D printed by selective laser melting (SLM) Co- Cr alloys, intended for additive manufacturing in dentistry.
Methods
A scanning electron microscope (SEM), equipped with an integrated Energy-Dispersive X-Ray Spectroscopy (EDS) system was used for investigation of the surface morphology and elemental composition of the 3D- printed Co-Cr sample. The X-ray structural analysis of the 3D - printed Co-Cr sample was made with a Bruker D8 Advance powder X-ray diffractometer. An Atomic force microscopy (AFM) was used for investigation of the surface topography of the sample. Tensile test, a three-point bending test, and nanoindentation experiments were used for investigation of mechanical properties of the 3D-printed Co-Cr sample.The influence of two different strain rates (1 mm/min and 60 mm/min) on the flexural strength was investigated as well.
Results
Higher values of indentation hardness (6.76 GPa), tensile strength (1016 MPa), yield strength (636.5 MPa) and flexural strength (1908 and 1891 MPa) of the produced by selective laser melting Co-Cr alloys have been obtained compared to cast Co-Cr and Cr-Ni alloys. It was found that increasing the strain rate from 1 mm/min to 60 mm/min caused a proportional increase in recorded flexural strength of ~0.9%.
Conclusions
The obtained results showed that the laser-sintered Co-Cr alloy can fully replace the cast Co-Cr alloy in dentistry, regards as of its good mechanics properties, as well as the high precision of the final product.
Wavelet analysis of the EMG signal to assess muscle fatigue in the lower extremities during symmetric movement on a rowing ergometer
Authors: Daniel Natalia , Małachowski Jerzy 
Published: December 2023

Purpose
The aim of this publication is to propose a methodology to determine changes in fatigue in selected muscle groups of the lower extremity during dynamic and cyclical motion performed on a rowing ergometer. The study aims to use the discrete wavelet transform (DWT) to analyze electromyographic signals (EMG) recorded during diagnostic assessment of muscle and peripheral nerve electrical activity (electroneurography) using an electromyography device (EMG).
Methods
The analysis involved implementing calculations such as mean frequency (MNF) and median frequency (MDF) using the reconstructed EMG signal through DWT. The study examined the efficacy of DWT analysis in assessing muscle fatigue after physical exertion.
Results
The study obtained a negative regression coefficient for DWT analysis in all muscles except for the right gastrocnemius (GAS). The results suggest that DWT analysis can be an effective tool for evaluating muscle fatigue after physical exertion.
Conclusions
The use of DWT in the analysis of EMG signals during rowing ergometer exercises has shown promising results in assessing muscle fatigue. However, additional investigations are necessary to confirm and expand these findings. This publication addresses the literature gap on the determination of muscle fatigue considering motion analysis on a rowing ergometer using the discrete wavelet transform. Previous studies have extensively compared and analyzed methods such as the Fourier transform (FFT), short-time Fourier transform (STFT), and wavelet transform (WT) for muscle fatigue analysis. However, no previous work has specifically examined the assessment of muscle fatigue by incorporating DWT analysis with motion analysis on a rowing ergometer.
Are the mechanical properties of Achilles tendon Altered in CrossFit athletes? Reliability and accuracy of myotonometry
Authors: Szajkowski Sebastian , Pasek Jarosław , Dwornik Michał , Zajączkowski Mateusz , Cieślar Grzegorz 
Published: December 2023

Purpose
Tendons adapt to loads affecting them, by changing tendons’ mechanical and morphological properties. The aim of the study has been to investigate the influence of involvement in sport activities in the form of CrossFit training by individuals of different age upon the mechanical properties of Achilles tendon.
Methods
231 persons participated in the study. One group consisted of subjects who train CrossFit as amateurs, the other group comprised subjects who were not physically active. Achilles tendon was studied for various positions of the ankle joint: 0° DF/PF, 10° DF, 20° DF, 20° PF and 40° PF. The following mechanical and viscoelastic tendon properties were measured using MyotonPRO: frequency [Hz], stiffness [N/m], decrement [log], relaxation time [ms] and creep [De]. The results have been compared in reference to physical activity, BMI, age, and length of training history.
Results
Both the tension and stiffness increased with degree of Achilles tendon stretching and decreased as it contracted. Higher values have been noted in the group of people in training and with higher BMI values. The elasticity of Achilles tendon decreased with plantar flexion increase. Lower elasticity has been recorded in the group in training and with higher BMI. No significant influence of age and length of training history upon the parameters achieved has been noted.
Conclusions
The specificity of Crossfit training and accompanying mechanical load result in development of adaptation changes in Achilles tendon, in the form of its higher tone/tension and stiffness, as well as lower elasticity.
Numerical analysis of the effects of canal wall‐up and canal wall‐down mastoidectomy on the sound transmission characteristics of human ears
Authors: Peihan Liu  , Jin Wan  , Wen Liu  , Yu Zhao  , Shanshan Yan  , Wen Jiang  , Houguang Liu  
Published: December 2023

Purpose
The aim of this work was to study the effect of canal wall-up (CWU) and canal wall-down (CWD) and mastoid obliteration in conjunction with CWD (CWD-MO) mastoidectomy on the sound transmission characteristics of the human ear.
Methods
Three mastoidectomy surgical methods, CWU, CWD and CWD-MO, were simulated on the freshly dissected cadaver heads. Then, the finite element (FE) models corresponding to these surgical methods were established by micro-computed tomography (Micro-CT) and reverse engineering technology, and the accuracy of the models was verified. Finally, the FE Models were used to analyze the effects of different surgical methods on the sound transmission characteristics of the human ear.
Results
For CWU, since the integrity of the outer wall of the ear canal is ensured, the sound pressure (SP) gain of the ear canal and the stapes footplate displacement (FPD) gain after this operation are close to normal values. For CWD, due to severe damage to the outer wall of the ear canal, a negative gain of the ear canal SP occurs in the high-frequency range, and the resonance frequency is significantly reduced. For CWD-MO, the frequency range of SP negative gain in the ear canal is reduced due to the addition of fillers in the ear canal to reduce the degree of damage, and the resonance frequency is increased compared to CWD.
Conclusions
The impact of three types of mastoidectomy, including CWU, CWD, and CWD-MO, on the sound transmission characteristics of the human ear after surgery is relatively small.
Effect of pulse laser treatment at different process variables on mechanical behavior of carbon nanotubes electrophoretically deposited on titanium alloy
Authors: Majkowska-Marzec Beata , Staszewski Kacper , Sypniewska Joanna 
Published: December 2023

Purpose
Titanium and its alloys are widely used as biomaterials for long-term implants, but they are usually surface-modified due to their weak bioactivity and wear resistance. Laser processing was used to modify the surface layer, and elemental carbon was a component of the deposited coatings. This research aims to use a combination of both methods based on preliminary electrophoretic deposition of multi-wall carbon nanotubes (MWNCTs) followed by pulse laser treatment. Carbon nanotubes were chosen due to their mechanical and chemical stability as well as their tubular shape, resulting in enhanced mechanical properties of laser-modified layers.
Methods
The pulse laser power and laser scanning speed were defined as variable process parameters. The microstructure, roughness Ra, nanohardness H, Young`s modulus E, and indent depth values were measured, and the H/E, H3/E2, and relative changes of all these values in comparison to MWCNTs-coated and non-coated surfaces, were calculated.
Results
The obtained results show that the best mechanical properties of MWCNTs-coated and laser-treated specimens are obtained at a laser power of 900 W and laser feed of 6 mm/s. The observed relations can be explained considering processes occurring on the surface such as deposition of carbon nanotubes, melting and re-crystallization of the surface layer, formation and possible partial decomposition of titanium carbides, and associated changes in local chemical composition, phase composition, and a level of residual stresses beneath the surface.
Conclusions
The developed process can substitute the time and money-consuming carbonization of titanium and its alloys.
Musculoskeletal Disorders Risk Levels in Tofu Workers in North Aceh: An Ergonomic Assessment
Authors: Erliana Cut Ita , Hasanuddin Iskandar , Away Yuwaldi , Ghazilla Raja Ariffin Raja 
Published: December 2023

Tofu is a soy-based food that is popular in Indonesia. One of the supporting factors is that it has high nutritional value and low price. Tofu is produced by micro, small, and medium enterprises (MSMEs) in all provinces in Indonesia, including in the region of Aceh. Based on the results of observations, the tofu production process still predominantly uses human labor, starting from the washing process to the cutting process. This activity is carried out every day with a high repetition rate. If this is allowed to happen for a long time, workers will be exposed to the risk of musculoskeletal disorders. This study uses the Cornell Musculoskeletal Disorders (CMDQ) questionnaire to assess the workers' work posture and determine the level of occupational hazard risk using the Rapid Entire Body Assessment (REBA) method. The results of the distribution of questionnaires show that the body parts that experienced pain complaints were the shoulder (right dan left), upper back, upper arm (right and left), lower back, forearm (right and left), also wrist (right and left). It happens in the filtering process. The results of the assessment of work posture with the REBA method show the score of work posture in the filtering process is 13, which means that the filtering posture of workers has a very high risk and must be improved immediately. The present research recommended additional intervention that includes engineering and administrative control methods for reducing those workers' complaints of muscle pain.
HUBUNGAN KEBIASAAN JAJAN DAN PENDAPATAN ORANG TUA TERHADAP STATUS GIZI PADA ANAK USIA SEKOLAH DI SDN 7 LAWA KABUPATEN MUNA BARAT TAHUN 2023
Authors: Eli Etin Rahmaniar , Yuniar Nani , Meliahsari Renni 
Published: December 2023

Abstrak
Status gizi merupakan salah satu komponen penting dari perkembangan kesehatan yang dapat berhubungan dengan perkembangan anak. Masalah gizi pada anak usia sekolah dasar masih sangat besar hingga saat ini. Persentase status gizi anak 5-12 tahun berdasarkan IMT/U menurut Riskesdas tahun 2018 di wilayah Muna Barat, masih cukup tinggi. Kategori kurus berjumlah 8,2% yang terdiri dari 2,9% sangat kurus dan 5,4% kurus. Kategori gemuk 10,1% yang terdiri dari 6,4% gemuk dan obesitas berjumlah 3,7%. Tujuan dari penelitian ini adalah guna meninjau hubungan antara kebiasaan jajan dan pendapatan orang tua terhadap statu gizi anak usia sekolah di SDN 7 Lawa Kabupaten Muna Barat tahun 2023. Penelitian ini berupa penelitian Cross Sectional Study dengan mengaplikasikan teknik Total Sampling dan uji chi-square. Instrument yang digunakan dalam penelitian ini yaitu FFQ dan kuesioner pendapatan orang tua. Hasil penelitian menunjukkan p value=0,118 (p>0,05) artinya tidak ada hubungan antara kebiasaan jajan terhadap status gizi gizi anak. Menurut hasil uji bivariat nilai p value=0,000 (p 0.05) meaning that there is no relationship between snacking habits and children's nutritional status. Based on the results of the bivariate test, the p value = 0.000 (p
New Resonance Scattering Model in AtomDB: Application to Line Suppression in Galaxy Clusters and Elliptical Galaxies
Authors: Chakraborty Priyanka , Foster Adam , Smith Randall , Brickhouse Nancy , Raymond John 
Published: December 2023

Abstract
In this paper, we present the simple, one-step, self-consistent, and fast resonance scattering model rsapec based on the AtomDB database. This model can be used as an alternative to the commonly used APEC model for fitting X-ray spectra with optically thick lines. The current model is intended, in general, for verifying the presence of the effect and for spectral modeling of galaxy clusters and elliptical galaxies under applicable assumptions. We test rsapec to derive the line suppression in the elliptical galaxy NGC 4636 and the Perseus cluster of galaxies and obtain resonance suppressions of ∼1.24 and ∼1.30, respectively.
The CAMELS Project: Expanding the Galaxy Formation Model Space with New ASTRID and 28-parameter TNG and SIMBA Suites
Authors: Ni Yueying , Genel Shy , Anglés-Alcázar Daniel , Villaescusa-Navarro Francisco , Jo Yongseok , Bird Simeon , Di Matteo Tiziana , Croft Rupert , Chen Nianyi , de Santi Natalí S. M. , Gebhardt Matthew , Shao Helen , Pandey Shivam , Hernquist Lars , Dave Romeel 
Published: December 2023

Abstract
We present CAMELS-ASTRID, the third suite of hydrodynamical simulations in the Cosmology and Astrophysics with MachinE Learning (CAMELS) project, along with new simulation sets that extend the model parameter space based on the previous frameworks of CAMELS-TNG and CAMELS-SIMBA, to provide broader training sets and testing grounds for machine-learning algorithms designed for cosmological studies. CAMELS-ASTRID employs the galaxy formation model following the ASTRID simulation and contains 2124 hydrodynamic simulation runs that vary three cosmological parameters (Ω
m
, σ
8, Ω
b
) and four parameters controlling stellar and active galactic nucleus (AGN) feedback. Compared to the existing TNG and SIMBA simulation suites in CAMELS, the fiducial model of ASTRID features the mildest AGN feedback and predicts the least baryonic effect on the matter power spectrum. The training set of ASTRID covers a broader variation in the galaxy populations and the baryonic impact on the matter power spectrum compared to its TNG and SIMBA counterparts, which can make machine-learning models trained on the ASTRID suite exhibit better extrapolation performance when tested on other hydrodynamic simulation sets. We also introduce extension simulation sets in CAMELS that widely explore 28 parameters in the TNG and SIMBA models, demonstrating the enormity of the overall galaxy formation model parameter space and the complex nonlinear interplay between cosmology and astrophysical processes. With the new simulation suites, we show that building robust machine-learning models favors training and testing on the largest possible diversity of galaxy formation models. We also demonstrate that it is possible to train accurate neural networks to infer cosmological parameters using the high-dimensional TNG-SB28 simulation set.
Solar Electron Beam—Langmuir Wave Interactions and How They Modify Solar Electron Beam Spectra: Solar Orbiter Observations of a Match Made in the Heliosphere
Authors: Lorfing Camille Y. , Reid Hamish A. S. , Gómez-Herrero Raúl , Maksimovic Milan , Nicolaou Georgios , Owen Christopher J. , Rodriguez-Pacheco Javier , Ryan Daniel F. , Trotta Domenico , Verscharen Daniel 
Published: December 2023

Abstract
Solar Orbiter's four in situ instruments have recorded numerous energetic electron events at heliocentric distances between 0.5 and 1 au. We analyze energetic electron fluxes, spectra, pitch-angle distributions, associated Langmuir waves, and type III solar radio bursts for three events to understand what causes modifications in the electron flux and identify the origin and characteristics of features observed in the electron spectrum. We investigate what electron beam properties and solar wind conditions are associated with Langmuir wave growth and spectral breaks in the electron peak flux as a function of energy. We observe velocity dispersion and quasilinear relaxation in the electron flux caused by the resonant wave–particle interactions in the deca-keV range, at the energies at which we observe breaks in the electron spectrum, cotemporal with the local generation of Langmuir waves. We show, via the evolution of the electron flux at the time of the event, that these interactions are responsible for the spectral signatures observed around 10 and 50 keV, confirming the results of simulations by Kontar and Reid. These signatures are independent of pitch-angle scattering. Our findings highlight the importance of using overlapping FOVs when working with data from different sensors. In this work, we exploit observations from all in situ instruments to address, for the first time, how the energetic electron flux is modified by the beam–plasma interactions and results in specific feature appearing in the local spectrum. Our results, corroborated with numerical simulations, can be extended to a wider range of heliocentric distances.
Similarity between Compact Extremely Red Objects Discovered with JWST in Cosmic Dawn and Blue-excess Dust-obscured Galaxies Known in Cosmic Noon
Authors: Noboriguchi Akatoki , Inoue Akio K. , Nagao Tohru , Toba Yoshiki , Misawa Toru 
Published: December 2023

Abstract
Spatially compact objects with extremely red color in the rest-frame optical to near-infrared (0.4–1 μm) and blue color in the rest-frame ultraviolet (UV; 0.2–0.4 μm) have been discovered at 5 < z < 9 using the James Webb Space Telescope (JWST). These extremely red objects (JWST-EROs) exhibit spectral energy distributions (SEDs) that are difficult to explain using a single component of either star-forming galaxies or quasars, leading to two-component models in which the blue UV and extremely red optical are explained using less-dusty and dusty spectra of galaxies or quasars, respectively. Here, we report the remarkable similarity in SEDs between JWST-EROs and blue-excess dust-obscured galaxies (BluDOGs) identified at 2 < z < 3. BluDOGs are a population of active galactic nuclei (AGNs) with black hole masses of ∼108–9
M
⊙, which are 1 order of magnitude larger than those in some JWST-EROs. The Eddington ratios of BluDOGs are 1 or higher, whereas those of JWST-EROs are in the range of 0.1–1. Therefore, JWST-EROs are less massive, less active, and more common counterparts in higher-z of BluDOGs in cosmic noon. Conversely, JWST-EROs have a significantly higher fraction of those with blue excess than DOGs. We present the average UV spectra of BluDOGs as a comparison to JWST-EROs and discuss a coherent evolutionary scenario for dusty AGN populations.
Data mobilization in the LWS herbarium: success and prospects
Authors: Novikov Andriy , Savytska Anastasiia , Kuzyarin Oleksandr , Nachychko Viktor , Susulovska Solomia , Rizun Volodymyr , Susulovsky Andrii , Hushtan Habriel , Hushtan Kateryna , Leleka Dmytro 
Published: December 2023

Digitization of hosted specimens is a crucial task for all herbaria worldwide and is one of the main streams for today. By digitizing their collections and publishing the datasets, the herbaria grant access to essential data to a wide research audience and, as a result, involve their collections in scientific work more actively. Digitization also allows virtual preservation of the collections, which is especially important in conditions of hostilities, when the entire collection can be destroyed or damaged in one moment. This paper describes two datasets recently published in GBIF in frames of the LWS herbarium digitization initiative. It also contains some considerations about further digitization priorities and plans in the LWS herbarium in the context of complicated war conditions and limited facilities.
In total, 2,419 occurrence records from Ukraine mobilized from LWS herbarium were published. These datasets are planned to be dynamic with the addition of new records along with progress of digitization work at LWS. At least 6,000 more records are planned to be published through these datasets in 2024.
Fin de l’ère nucléaire : quel horizon énergétique se profile en Allemagne ?
Authors: Livet Annabelle 
Published: December 2023

La guerre en Ukraine a marqué un tournant en Allemagne non seulement par une Zeitenwende des questions de défense mais également dans le domaine de l’énergie. C’est dans un contexte de crise énergétique et d’objectifs ambitieux de décarbonation que l’Allemagne a mis en arrêt ses dernières centrales nucléaires conformément au contrat de coalition de 2021. Cette décision était initialement motivée par des raisonnements de « peur de l’atome » et d’une recherche de réduction totale des risques liés aux activités nucléaires. Pourtant l’intégration progressive des enjeux de sécurité d’approvisionnement énergétique ainsi que la dimension géopolitique de l’énergie font émerger les réflexions sur le rôle de l’énergie nucléaire tant sur le plan national qu’européen. Se heurtent alors le programme politique de la coalition aux incertitudes géopolitiques européennes et mondiales ainsi qu’aux enjeux de décarbonation. L’enjeu ici est de comprendre que les divergences de point de vue sur l’énergie nucléaire et entre les systèmes énergétiques ne doivent pas dériver en opposition au sein de l’UE. Sinon quoi les dimensions politiques, sociales et climatiques n’en seront que davantage sclérosées.