bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stability in Direct Lateral vs Direct Anterior Total Hip Arthroplasty in the Context of Lumbar Spinal Fusion
Authors: Goyal Dhruv K. C. , Divi Srikanth N. , Vaccaro Alexander R. , Hozack William J. 
Published: February 2022

Introduction:
Lumbar spinal fusion (LSF) may increase the risk of dislocation in patients who have undergone total hip arthroplasty (THA), especially when the LSF was done before the THA. Most publications evaluated patients who had undergone THA using a posterior approach to the hip, yet there are little data on the influence of other surgical approaches. The goal of this study was to evaluate the risk of THA dislocation with anterior supine-based surgical approaches to the hip in patients who have undergone surgical management of concurrent hip and spine pathology.

Methods:
Patients older than 18 years who underwent an LSF and THA using a supine approach—either direct anterior (DA) or direct lateral (DL)—between 2000 and 2018 were identified. Only standard bearings (28-32-36-40 mm) were used. The dislocation rate was determined in this cohort. A subsequent analysis was conducted, stratifying patients based on the order in which they received the LSF or THA.

Results:
A total of 582 surgical hip-spine patients were retrospectively identified and included in the cohort. Of total, 332 patients (57.0%) received an LSF before the THA; 250 (43.0%) had the fusion after a primary hip replacement. There were 143 patients (24.6%) in the DA group and 439 (75.4%) in the DL group. Overall, there were five dislocations (0.9%) in the entire cohort.

Conclusions:
In patients with simultaneous degenerative hip and lumbar spine pathology, anterior supine-based approaches demonstrate a low (<1%) risk of instability. Given the small number of total dislocation events (n = 5), additional analysis is warranted to assess the effect of different anterior approaches (DA versus DL) or timing of lumbar spinal surgery (before or after THA).

Level of Evidence:
Level III
Kolesterol HUBUNGAN INDEKS MASSA TUBUH (IMT) DENGAN KADAR KOLESTEROL TOTAL PADA MAHASISWA INSTITUT KESEHATAN RAJAWALI
Authors: Ulfah Ulyati 
Published: February 2022

Latar Belakang : Indeks massa tubuh atau IMT merupakan suatu pengukuran sederhana untuk mengetahui status gizi seseorang, terdapat beberapa faktor yang berhubungan dengan tingginya IMT yaitu kurangnya aktivitas fisik yang mengarah pada pola hidup sedentaris. Kolesterol merupakan salah satu komponen lemak atau lipid, kadar kolesterol dapat meningkat jumlahnya karena asupan makan yang berasal dari lemak hewani, telur dan junk food.
Tujuan Penelitian : Mengetahui hubungan IMT dengan kadar kolesterol total pada mahasiswa Institut Kesehatan Rajawali.
Metode Penelitian : Penelitian ini menggunakan analitik kolerasional dengan studi cross-sectional, teknik pengambilan sampel yang digunakan yaitu purposive sampling, dengan menggunakan uji normalitas Shapiro-Wilk dan uji kolerasi pearson.
Hasil Penelitian : Hasil analisis menggunakan uji statistik Kolerasi Pearson menunjukkan bahwa tingginya IMT tidak hanya dipengaruhi oleh kadar kolesterol. Salah satunya disebabkan oleh kelainan lipoprotein dan faktor herediter. Nilai Sig. (2-tailed) sebesar 0,783 > 0,05, maka hubungan antara variabel tersebut dapat dikatakan tidak signifikan atau dapat diartikan H0 diterima.
Kesimpulan : Tidak terdapat hubungan antara indeks massa tubuh dengan kadar kolesterol pada mahasiswa Institut Kesehatan Rajawali.
Pengaruh Model Pembelajaran Kooperatif Tipe Student Teams Achievement Divisions (STAD) terhadap Peningkatan Prestasi Belajar Siswa
Authors: Rizzaludin Rizzaludin 
Published: February 2022

Penelitian ini adalah jenis penelitian eksperimen yang bertujuan untuk mengetahui Pengaruh Model Pembelajaran Kooperatif Tipe student teams achievement divisions (STAD) terhadap peningkatan Prestasi Belajar Peserta Didik Materi Pokok Sistem dan Permasalahan Ekonomi Semester Genap Kelas X SMAN 2 Dompu Tahun Ajaran 2020/2021. Populasi dalam penelitian ini adalah seluruh peserta didik X SMAN 2 Dompu Tahun Ajaran 2020/2021 yang berjumlah 33 orang. Karena jumlah populasi kurang dari 100 maka semua populasi dijadikan sampel penelitian. Dalam penelitian ini analisis data yang digunakan adalah analisis deskriptif. Dari hasil analisis data dan pembahasan dapat disimpulkan bahwa ada pengaruh model pembelajaran Kooperatif Tipe student teams achievement divisions (STAD) terhadap peningkatan Prestasi Belajar Peserta Didik Materi Pokok Sistem dan Permasalahan Ekonomi Semester Genap Kelas X SMAN 2 Dompu Tahun Ajaran 2020/2021, hal ini ditunjukkan dengan nilai r hitung lebih besar dari rtabel ( rhitung ≥ rtabel = 0,615 ≥ 0,344) dengan tingkat kategori pengaruhnya sangat kuat.
Evaluasi Kesiapsiagaan Sekolah Menengah Atas di Kabupaten Pekalongan dalam Penyediaan Mutu dan Inklusivitas Pembelajaran Pasca Pandemic
Authors: Susanto Susanto , Sidqi M.Fajru , Fajar Dwi Ario 
Published: February 2022

Penelitian ini dilatarbelakangi oleh ketidakpastian berakhirnya pandemi Covid-19 yang berdampak pada ancaman siswa menjadi putus belajar dan menurunnya kualitas pembelajaran. Oleh karena itu, sekolah harus selalu siap siaga dengan sistem pendidikan yang baru yang berbeda dengan sistem pendidikan sebelumnya. Sistem pendidikan sekolah Tanggap pandemic (Resilience Education System) menjadi salah satu solusi tepat untuk penyelenggaraan pendidikan di masa pandemic dan masa pasca pandemic. Penelitian ini adalah penelitian evaluasi yang bertujuan untuk mengungkapkan kesiapan dari sekolah menuju Resillence Education Sistem terutama dalam aspek pembelajaran dan memberikan rekomendasi kepada sekolah dan pemangku kebijakan untuk mengetahui peta kesiapsiagaan sekolah di masa pandemic dan pasca pandemic. Seting penelitian di SMA negeri di Kabupaten Pekalongan. Subjek penelitiannya adalah para pimpinan sekolah yang diambil sebagai sampling. Data dikumpulkan dengan cara kuisioner dan interview dan hasil dari pengumpulan data dianalisis secara kualitatif deskriptif. Hasil penelitian ini menunjukkan bahwa sekolah belum cukup siap untuk mengelola sistem pembelajaran daring terutama dalam peningkatan keterlibatan aktif dalam pembelajaran daring, pelibatan keluarga dan masyarakat dalam pembelajaran daring, dan peningkatan literasi digital dan pembelajaran mandiri.
Upaya Meningkatkan Hasil Belajar Mata pelajaran Sejarah Siswa melalui Model Pembelajaran Example dan Non Example pada Siswa SMA
Authors: Nurjannah Nurjannah , Khatimah Husnul 
Published: February 2022

Tujuan dalam penelitian ini untuk meningkatkan prestasi belajar siswa melalui model Example non Example. Metode pengumpulan data yang digunakan yaitu observasi dan tes. Teknik analisis data yang digunakan dalam penelitian ini adalah dengan menggunakan rumus ketuntasan individual KB = T : T1 x 100% dan ketuntasan klasikal KB =Nt : T x 100%. Hasil penelitian ini dapat ditunjukkan bahwa, siklus I menunjukkan hasil observasi guru dan siswa belum terlaksana dengan baik , hasil tes evaluasi siswa siklus I dengan nilai rata-rata sebesar 53,47 dangan ketuntasan klasikalnya sebesar 39,13% dan hasil ini belum dapat mencapai indikator kinerja yang telah ditetapkan maka dilanjutkan ke siklus ke II. Hasil observasi guru dan siswa siklus II sudah terlaksa dengan baik dan hasil tes evaluasi siswa siklus II dengan nilai rata-rata sebesar 81,95% dan ketuntasan klasikalnya sebesar 86,95% hasil ini sudah mencapai indikator kinerja yang telah ditetapkan dan penelitian ini dihentikan sampai pada siklus II, maka hipotesis tindakan yang diajukan DITERIMA. Terdapat peningkatan prestasi belajar siswa melalui model pembelajaran Example non Example Pada mata pelajaran IPS Siswa kelas XI Negeri 2 Bolo tahun pembelajaran 2021/2022.
Pengembangan Perangkat Pembelajaran Penanganan dan Perawatan Cidera (PPC) “Lo,i Ncara ro Mpoka” menggunakan Hellison’s Model terhadap Berpikir Kreativitas Mahasiswa
Authors: Fauqi Amal , Bulan Arif 
Published: February 2022

Pengembangan Perangkat Pembelajaran dengan Menggunakan Hellison’s Model bertujuan untuk memberikan kebebasan pada Mahasiswa untuk bertanggung Jawab, Mandiri serta melakukan langkah-langkah kreatif, ilmiah dengan cara mengumpulkan data dari hasil pembelajaran, kemudian Mahasiswa dapat menafsirkan, menganalisis, dan akhirnya sampai pada suatu kesimpulan, sehingga diharapkan prestasi belajar Mahasiswa menjadi tumbuh dan meningkat. Penelitian ini merupakan penelitian pengembangan (developmental research), dengan mengembangkan perangkat pembelajaran yang meliputi: Buku Ajar, RPS, Worksheet serta instrument kemampuan berpikir kreatif Mahasiswa yang mengacu pada model 4-D (Define, Design, Develop, dan Deisemination). Berdasarkan hasil analisis deskriptif, pengembangan Perangkat Pembelajaran Hellison’s Model pada Mata Kuliah Penanganan dan Perawatan Cedera ”Loi Ncara Ro Mpoka” untuk Melatih Kemampuan Berpikir Kreatif Mahasiswa diketegorikan Layak atau “Sangat Baik”, karena keenam kriteria perangkat pembelajaran yang baik terpenuhi. Secara keseluruhan Perangkat Pembelajaran Penanganan dan perawatan cedera olahraga ini layak digunakan dalam penerapan Penanganan dan perawatan cedera olahraga untuk Mahasiswa setelah melalui 2 tahap uji coba. Penelitian pengembangan ini sudah tercapai untuk digunakan oleh Dosen dalam memperkenalkan Penanganan dan perawatan cedera olahraga kepada mahasiswa.
PERILAKU INTERAKSI SOSIAL MONYET HITAM DARE (MacacamauraSchinz, 1825) DI TAMAN WISATA ALAM LEJJA KABUPATEN SOPPENG
Authors: Munir Dewi Anggita , Karim Hadijah Azis , Rosdayanti Andi 
Published: February 2022

Sulawesi island is a unique island among other islands in indonesia. This research aims to find out the social interaction behaviour of Dare Black Monkey (Macaca maura) in the Lejja natural tourism park. This animal is an endemic in Sulawesi island, located in South Sulawesi Province and categorixed as an endangered species by the IUCN, therefore its existence must be protected. The method was used field observation and focal animal sampling. The object was detremined in 15 Macaca maura based on age and sexuality in a group.Social interaction behaviour was recorded, namely the behavior of playing, grooming, coitus, conflict. Based on the results that the high social behaviour frequency of playing activity was owned by the young male (72 times) and the children (56 times), as well as grooming by young male and children have the highest frequency (31 times). Frequency of coitus and agonistic behaviours was owned by adult male with 14 times and 5 times respectively.However, the longest time proportion of playing was used by children with 10.602 second (62,01%),while the total and time percentage of coitus have the lowest value (240 second or 2,11% and 300 second or 2,58% perspectively) by adult ages.Kata Kunci :, Macaca maura, social behavior, grooming, Lejja natural tourism park
Přístupy ke studiu u studentů českých vysokých škol – Přehledová studie současného pedagogického výzkumu
Authors: Mičínová Ivana 
Published: February 2022

Cílem této přehledové studie je identifikovat, jaké oblasti zkoumání přístupů k vysokoškolskému studiu jsou v českém badatelském prostředí tematizovány v letech 2010 –2020 a jaké výsledky přinášejí pro zkvalitňování výuky na vysokých školách. Zachycená témata se věnují adaptaci studentů prvních ročníků na nároky vysokoškolského studia, problematice organizace vlastního studia a postojů k samostudiu. Další oblastí zájmu jsou preference využívání studijních materiálů, prezentace učiva a forem výuky. Zrcadlením studijních přístupů je i analýza zpracování diplomových prací a koncepce státní zkoušky. Výsledky dílčích studií jsou ukotveny na pozadí zprávy EUROSTUDENT VI a reflexí výuky začínajících vysokoškolských pedagogů. Celkově přinášejí sice dílčí, ale velmi detailní sondy do porozumění tomu, jak současní studenti přistupují ke studiu. Závěr studie přináší přehled témat, jimž by se mohl věnovat příští výzkum v oborových didaktikách.
Advantages and Disadvantages of Online Teaching and Learning Business English Based on a Survey Conducted among SBA Students
Authors: Heinz Krystyna , Chylková Martina 
Published: February 2022

The article presents results of a survey conducted using the method of the Semantic Differential among students of Business English at School of Business Administration in Karviná, Silesian University in Opava, related to respondents´ attitudes to advantages and disadvantages of online learning during the first part of the Coronavirus pandemic. Students´ answers have shown the lack of unanimous responses, which indicates the fact that they were not able to evaluate the situation in a distinct way placing their answers mainly in the middle of the offered spectrum. The authors of the article especially appreciate the data collected in the two last questions as they can contribute to optimization of online learning and teaching in the future.
Potřebujeme na univerzitách vyučovat Akademické psaní? Příklad dobré praxe z ÚJČ AV ČR a VŠB-TUO
Authors: Kašpárková Alena , Etchegoyen Rosolová Kamila 
Published: February 2022

V tomto Příkladu dobré praxe představujeme výsledky společného projektu dvou českých pracovišť v oblasti podpory vědecké komunikace, akademického psaní a publikační praxe v angličtině. V textu stručně popisuje10 kurzů Publikační praxe, včetně principů, na kterých kurzy stojí. Kurzy se staly páteří PhD Akademie na VŠB-TUO a zapojila se do nich i Ústřední knihovna této univerzity. Ke kurzům jsme dále připravili v našem kontextu ojedinělé školení pro budoucí lektory kurzů, manuál pro lektory jako podporu během jejich lektorských začátků a také seminář pro školitele. Argumentujeme ve prospěch systematické strukturované výuky odborného psaní na všech úrovních vysokoškolského studia.
Vybrané aspekty studia v kurzech anglického jazyka na U3V ZČU v Plzni
Authors: Holubová Radmila , Ramadanová Jitka 
Published: February 2022

Tento příspěvek je tematicky zaměřen na studium posluchačů Univerzity třetího věku (U3V) na Západočeské univerzitě v Plzni. Přestože otázka celoživotního vzdělávání seniorů vyvstává v posledních desetiletích v naší republice se stále větší naléhavostí, mimo jiné i vzhledem k demografickým trendům, v odborné literatuře není této problematice u nás věnována dostatečná pozornost. Autorky příspěvku nejprve informují o studiu na U3V v Plzni obecně a následně se blíže zaměřují na kurzy anglického jazyka, které jsou seniorům v rámci studia nabízeny. V další části jsou popsány a rozebrány cíle a výsledky dotazníkového šetření, kterého se zúčastnili všichni stávající účastníci těchto kurzů v akademickém roce 2020/2021. Autorky se věnují také aktuální problematice online výuky seniorů, stejně jako i motivaci seniorů ke studiu. V diskusi jsou pak porovnány výsledky dotazníkového šetření s poznatky uváděnými v odborné literatuře.
Education and Environment Dementia Risk Factors: A Literature Review
Authors: Gallistl Juergen 
Published: February 2022

Introduction and Background: Dementia has many different causes. Dementia is considered a multifactorial disease; hence the interplay between factors for every case is a complex study. Early and recent reviews had recognised several risk factors associated with dementia in general and with AD specifically. The most studied risk factors include genetics, increasing age, education, environment, and brain injuries. This review aims to give readers access to the latest research on the educational and environmental risk factors of dementia by selecting recent high-quality resources and summarising them in this review.
Methods: The current article is a narrative review of broad literature research.
Results and Discussion: The comprehensive examination of evidence supports the following. First, low education can be considered a relevant risk factor for developing dementia, although the operationalisation of "low education" is still unclear in many studies. The mechanisms of "cognitive reserve" have an important implication in the relationships between education and dementia, and this has been studied with limitations in people with intellectual disorders. Second, air pollution is now considered a dementia risk factor with plenty of evidence concerning PM2.5 but less conclusive evidence regarding single gaseous pollutants because of the “multi-exposure response.”
Conclusion: The considerable body of research points towards an association between these risk factors and dementia prevalence. Low- and middle-income countries will benefit from prioritising child education for all since education is one of the major risk factors for dementia and a wide variety of health disparities.
Development of a virtual source model for Monte Carlo‐based independent dose calculation for varian linac
Authors: Castle James R. , Duan Jingwei , Feng Xue , Chen Quan 
Published: February 2022

AbstractMonte Carlo (MC) independent dose calculations are often based on phase‐space files (PSF), as they can accurately represent particle characteristics. PSF generally are large and create a bottleneck in computation time. In addition, the number of independent particles is limited by the PSF, preventing further reduction of statistical uncertainty. The purpose of this study is to develop and validate a virtual source model (VSM) to address these limitations. Particles from existing PSF for the Varian TrueBeam medical linear accelerator 6X, 6XFFF, 10X, and 10XFFF beam configurations were tallied, analyzed, and used to generate a dual‐source photon VSM that includes electron contamination. The particle density distribution, kinetic energy spectrum, particle direction, and the correlations between characteristics were computed. The VSM models for each beam configuration were validated with water phantom measurements as well as clinical test cases against the original PSF. The new VSM requires 67 MB of disk space for each beam configuration, compared to 50 GB for the PSF from which they are based and effectively remove the bottleneck set by the PSF. At 3% MC uncertainty, the VSM approach reduces the calculation time by a factor of 14 on our server. MC doses obtained using the VSM approach were compared against PSF‐generated doses in clinical test cases and measurements in a water phantom using a gamma index analysis. For all tests, the VSMs were in excellent agreement with PSF doses and measurements (>90% passing voxels between doses and measurements). Results of this study indicate the successful derivation and implementation of a VSM model for Varian Linac that significantly saves computation time without sacrificing accuracy for independent dose calculation.
Realizing High‐Performance BiSbTe Magnetic Flexible Films via Acceleration Movement and Hopping Migration of Carriers
Authors: Chen Yifan , Nie Xiaolei , Sun Congli , Ke Shaoqiu , Xu Wenjie , Zhao Yao , Zhu Wanting , Zhao Wenyu , Zhang Qingjie 
Published: February 2022

AbstractImproving the thermoelectric (TE) performance of Bi2Te3‐based flexible films remains a huge challenge. Herein, high‐performance Ni/epoxy/Bi0.5Sb1.5Te3 magnetic flexible TE films are prepared by incorporating Ni nanoparticles (Ni‐NPs). Atomic‐resolution STEM investigation demonstrates that Te vacancies induced by the orientation reaction between Ni‐NPs and Te from Bi0.5Sb1.5Te3 trigger the presence of negatively charged and anti‐site defects and atomic‐sized electric field in the magnetic flexible TE films and further cause the acceleration movement and hopping migration of carriers. The transport measurements indicate an increased carrier concentration due to the anti‐site defects, while the significant increase of carrier mobility originates from the acceleration movement of carriers. The magnetic scattering and hopping migration of carriers are responsible for maintaining large Seebeck coefficient. As compared to epoxy/Bi0.5Sb1.5Te3 flexible TE film, the maximum power factor of the magnetic flexible TE film with 0.1% Ni‐NPs reaches 2.74 mW m−1 K−2 at 300 K and increases by 61%, while the cooling temperature difference increases by 250%.
Sweat‐Permeable, Biodegradable, Transparent and Self‐powered Chitosan‐Based Electronic Skin with Ultrathin Elastic Gold Nanofibers
Authors: Peng Xiao , Dong Kai , Zhang Yufei , Wang Lili , Wei Chuanhui , Lv Tianmei , Wang Zhong Lin , Wu Zhiyi 
Published: February 2022

AbstractThe simultaneous achievement of multiple functional attributes, such as flexibility, stretchability, transparency, comfortability, biodegradability, and self‐powered ability into electronic skins (e‐skins) is vital to their long‐term practical applications. Due to the internal contradiction between functional material combination and simple structural design, this kind of multifunctional e‐skin has rarely been fabricated or even reported. To this end, chitosan (CS), a natural material with remarkable biocompatibility, biodegradability, and electron‐donating ability, is integrated with a single‐mode triboelectric nanogenerator (TENG) to develop a multifunctional e‐skin, which includes sweat permeability, controllable biodegradability, high transparency, and self‐powered sensing ability. In addition, a facile, efficient, and large‐scale fabrication strategy is proposed to construct stretchable, ultrathin, transparent, and shape‐adaptable gold nanofibers (Au NFs) electrodes. Furthermore, the e‐skin can achieve a voltage response pressure sensitivity of 0.012 kPa−1 in the pressure range of 0–70 kPa and a fast response time of 70 ms. Finally, it shows controllable and excellent degradability in various solutions. It is believed that the proposed e‐skin based on the design and integration of CS and Au NFs will provide a paradigm shift for the next‐generation self‐powered transient electronics.
Effective Mass from Seebeck Coefficient
Authors: Snyder Gerald Jeffrey , Pereyra Alessandro , Gurunathan Ramya 
Published: February 2022

AbstractEngineering semiconductor devices requires an understanding of the effective mass of electrons and holes. Effective masses have historically been determined in metals at cryogenic temperatures estimated using measurements of the electronic specific heat. Instead, by combining measurements of the Seebeck and Hall effects, a density of states effective mass can be determined in doped semiconductors at room temperature and above. Here, a simple method to calculate the electron effective mass using the Seebeck coefficient and an estimate of the free electron or hole concentration, such as that determined from the Hall effect, is introduced here is the Seebeck effective mass, nH is the charge carrier concentration measured by the Hall effect (nH = 1/eRH, RH is Hall resistance) in 1020 cm−3, T is the absolute temperature in K, S is the Seebeck coefficient, and kB/e = 86.3 μV K−1. This estimate of the effective mass can aid the understanding and engineering of the electronic structure as it is largely independent of scattering and the effects of microstructure (grain boundary resistance). It is particularly helpful in characterizing thermoelectric materials.