bluuebunny/crossref_metadata_2025_split huggingface dataset:
PHYSICAL VAPOR DEPOSITION AND CHEMICAL VAPOR DEPOSITION APPROACHES FOR CONTROLLED GROWTH OF WSe\(_2\) SINGLE-LAYER
Authors: Duc Nguyen Anh , Nhan Nguyen Thi 
Published: September 2024

In this paper, two-dimensional ultrathin films of tungsten diselenide (2D-WSe2) are synthesized on Si/SiO2 substrate by using two approaches, physical vapor deposition (PVD) and chemical vapor deposition (CVD). The essential parameters of deposition conditions including temperature, pressure, and gas flow of both methods are presented. The samples were examined for their morphology by optical microscopy (OM), scanning electron microscopy (SEM), atomic force microscopy (AFM), and for the crystal lattice vibration properties by Raman scattering spectrum. The results show that the single crystal flakes are located separately in hexagonal or triangular shapes with edge lengths ranging from 20 µm to 100 µm, or can be linked together to form a continuous film. The thickness of most of the film area obtained from both methods can be controlled to a single layer (1L-WSe2). In addition, the photoluminescence spectra (PL) of the samples were investigated, which indirectly evaluated the crystallization quality of the thin films prepared from the two methods.
Pengembangan Modul Geometri Ruang Problem Based Learning Terintegrasi Nilai-Nilai Islam
Authors: Muslimin Muslimin , Sunardi Sunardi 
Published: September 2024

Riset ini bertujuan menciptakan materi geometri ruang problem based learning terintegrasi nilai-nilai islam yang valid dan praktis untuk siswa Sekolah Menengah Atas dan mengenali dampak potensial dari penggunaan materi yang sudah dikembangkan terhadap hasil belajar siswa. Tata cara riset yang digunakan merupakan riset pengembangan (development research). Pengembangan ini dicoba menjajaki 2 sesi utama development reseach ialah sesi preliminary (sesi persiapan) dan sesi formative evaluation. Bersumber pada hasil analisis produk, diperoleh materi problem based learning yang valid serta instan. Valid nampak dari hasil evaluasi dari pakar (validator), bersumber pada content (modul cocok dengan kompetensi inti serta kompetensi bawah), konstruk (sesuai ciri problem based learning), serta bahasa telah sesuai dengan kaidah bahasa Indonesia yang baku. Praktis nampak dari hasil uji coba small group, siswa bisa menuntaskan materi geometri ruang yang diberikan. Bersumber pada analisis informasi hasil belajar siswa diperoleh rata-rata nilai 77,63 yang berarti hasil belajar siswa terkategori baik dalam pendidikan matematika dengan memakai materi geometri ruang problem based learning terintegrasi nilai-nilai Islam, hingga disimpulkan materi geometri ruang yang sudah dikembangkan mempunyai efek potensial.
Analisis Kemampuan Mahasiswa Calon Guru dalam Menyelesaikan Soal HOTS Materi Lingkaran
Authors: Fitrianna Aflich Yusnita , Yuliani Anik 
Published: September 2024

Tujuan penelitian ini adalah mengembangkan tes berdasarkan kerangka kerja RECCE-MODEL untuk mengukur kemampuan kognitif mahasiswa. Subjek penelitian adalah 80 mahasiswa pendidikan matematika semester ganjil tahun akademik 2019/2020, Universitas Muhammadiyah Malang. Jenis penelitian yang diterapkan ialah Research and Development (R&D). Prosedur penelitian terbagi menjadi tiga tahapan, yaitu pengumpulan data, perencanaan tes, dan pengembangan tes. Penelitian ini menggunakan instrumen penelitian berupa lembar validasi dan tes. Hasil penelitian di antaranya menghasilkan 2 butir soal tes sesuai dengan kerangka kerja MODEL. Tes tersebut telah dilakukan uji validasi, uji reliabilitas, uji tingkat kesukaran tes, dan uji daya pembeda soal. Berdasarkan hasil validasi yang diujikan oleh validator, tes tersebut dikatakan valid karena hasil yang diperoleh adalah 75%. Nilai koefisien reliabilitas adalah 0,786 sehingga tes dapat dikatakan reliabel. Hasil analisis tingkat kesukaran dikategorikan mudah untuk keseluruhan tes. Hasil daya pembeda soal dikategorikan baik untuk keseluruhan tes. Selain itu, dengan menggunakan tes yang telah dikembangkan ini dapat mengidentifikasi kemampuan kognitif mahasiswa pada lima level MODEL. Oleh karena itu, dapat disimpulkan tes yang dikembangkan memiliki kategori valid, reliabel, dan efektif untuk mengukur kemampuan kognitif mahasiswa.
sosiasi Adversity Quotient (AQ) dengan Prestasi Belajar Calon Guru Matematika IAIN Kediri di Masa Pembelajaran Daring
Authors: Wulan Eka Resti , Kurniawati Yuli Indah , Diantik Dini Nur , Maula Nala Rahmatul 
Published: September 2024

Tujuan penelitian ini adalah untuk mengetahui apakah ada asosiasi antara Adversity Quotient (AQ) dengan Prestasi Belajar Mahasiswa Tadris Matematika IAIN Kediri di masa pembelajaran dalam jaringan. Penelitian berjenis deskriptif korelatif. Instrumen penelitian ini berupa angket Adversity Respons Profile (ARP). Sedangkan dokumentasi Indeks Pretasi Komulatif (IPK) sebagai prestasi belajar mahasiswa. Hasil penelitian menunjukkan rata-rata skor AQ mahasiswa ada pada kategori Camper. Rata-rata IPK mahasiswa Tadris Matematika IAIN Kediri angkatan 2018 berada pada klasifikasi sangat memuaskan sebesar 3,484. Perhitungan dengan Pearson Correlation menunjukkan nilai rhitung (=0,375) yang kurang dari rtabel (=0,2960), maka dapat disimpulkan ada hubungan atau korelasi signifikan antara variabel AQ dengan variabel prestasi belajar. Hasil Pearson Correlations bernilai positif, sehingga semakin meningkatnya AQ akan meningkat pula prestasi belajar mahasiswa. Dosen dapat menyediakan stimulasi dan fasilitasi pembimbingan terstruktur melalui pelevelan tantangan atau permasalahan. Hal tersebut dapat menambah semangat dan motivasi mahasiswa calon guru matematika untuk melatihkan kegigihannya sebelum memasuki dunia kerja.
Pemahaman konsep matriks dan kemampuan berpikir kritis siswa SMA
Authors: Irka Irka , Hartono Yusuf , Indaryanti Indaryanti 
Published: September 2024

Penelitian ini adalah penelitian kuantitatif yang bertujuan untuk mengetahui hubungan antara pemahaman konsep dengan kemampuan berpikir kritis siswa SMA kelas XI di Kecamatan Tebing Tinggi pada pokok bahasan matriks. Data penelitian diperoleh melalui instrumen tes kemampuan pemahaman konsep dan tes kemampuan berpikir kritis. Sampel pada penelitian ini adalah 62 siswa kelas XI IPA 1 pada tiga SMA di Tebing Tinggi. Kemampuan berpikir kritis siswa mengacu pada 4 kategori yaitu: interpretasi, analisis, evaluasi dan inferensi. Hasil penelitian menunjukkan bahwa ada hubungan yang positif dan signifikan antara kemampuan pemahaman konsep dengan kemampuan berpikir kritis siswa. Dimana terdapat korelasi yang positif kategori rendah antara kemampuan pemahaman konsep dengan kemampuan berpikir kritis, dengan hasil koefisien korelasi sebesar 0,392. Sedangkan pada uji korelasi r square diperoleh persentase sebesar 15,2% artinya pada keempat kemampuan berpikir kritis yaitu interpretasi, analisis, evaluasi dan inferensi tergolong sangat rendah untuk materi matriks. Maka dapat disimpulkan bahwa kemampuan berpikir kritis matematis peserta didik masih tergolong sangat rendah.
Analisis pilot experiment pada desain pembelajaran materi volume balok menggunakan pendekatan Model Eliciting Activities (MEAs)
Authors: Farista Muhammad Irsadi , Ilma Indra Putri Ratu , Hapizah Hapizah 
Published: September 2024

Penelitian ini bertujuan menganalisis desain pembelajaran materi volume balok di kelas VIII menggunakan pendekatan MEAs. Metode penelitian yang digunakan design research type validation study yang terdiri dari 3 tahap, yakni preliminary design, experiment (pilot experiment and teaching experiment), dan retrospective analize. Pada artikel ini hanya menganalisis tahap, experiment (pilot experiment and teaching experiment). Penelitian dilaksanakan di SMP negeri yang ada di kota Palembang dengan melibatkan siswa kelas VIII yang berjumlah 9 siswa dengan kemampuan yang berbeda. Hasil dari penelitian ini adalah lintasan belajar yang dapat digunakan pada materi Volume balok. Berdasarkan hasil penelitian dapat disimpulkan bahwa MEAs memberikan kesempatan siswa untuk mengeksplorasi diri dan kemampuannya dalam memecahkan masalah, berpikir kritis, berpikir kreatif dan melatih komunikasi matematis.
Cuci Tangan Pakai Sabun Menggunakan Model RANAS Di SD Negeri Klampis Ngasem 1 Surabaya
Authors: Andriani Masfufah Maya 
Published: September 2024

Cuci tangan berpotensi mencegah kematian yang dapat dicegah, meningkatkan hasil layanan kesehatan, dan mendukung kemajuan dalam pendidikan, kesetaraan, dan air, sanitasi, dan kebersihan untuk mencapai tujuan Pembangunan Berkelanjutan (SDGs). Mencuci tangan membantu mengurangi infeksi, terutama diare dan infeksi saluran pernapasan akut, yang merupakan dua penyebab utama kematian anak. Anak-anak membutuhkan kesehatan. Akibatnya, kondisi kesehatan siswa adalah faktor penting pada saat masuk ke sekolah, yang juga menentukan kehadiran atau partisipasi dalam pengajaran. Oleh karena itu, berbagai pihak bekerja sama untuk mencapai tujuan kesehatan. Metode yang dilakukan dalam kegiatan pengabdian ini adalah metode RANAS (Risiko, Sikap, Norma, Kemampuan, dan Pengaturan Diri) di SD Negeri Klampis Ngasem 1 Surabaya. Kegiatan dilakukan selama empat minggu dengan jadwal yang sudah ditetapkan dengan stakeholder yang relevan dan sesuai, kegiatan ini berfokus pada perubahan perilaku CTPS (Cuci Tangan Pakai Sabun) dengan games seru, bernyanyi dan menghafal lagu bersama, melaksanakan lomba-lomba terkait CTPS (Cuci Tangan Pakai Sabun), dan praktik cuci tangan bersama-sama. Hasilnya adalah bahwa siswa dapat mengubah kebiasaan dan perilaku mereka untuk melakukan cuci tangan dengan benar dan tepat berkat pengabdian masyarakat ini
Insights and Learning from IOGP Global Upstream Process Safety Event Data
Authors: Fargie D. , Walker K. , Poore W. M. , Norton S. , Husain I. , Decarli L. , Clover C. 
Published: September 2024

Abstract
The International Association of Oil and Gas Producers (IOGP) is a global organization in which member companies identify and share best practices to achieve improvements in many areas including upstream process safety. Since 2014 IOGP has published an annual process safety event (PSE) data report based on data submitted in alignment with the upstream and downstream reporting criteria in IOGP Report 456 and API RP 754.
Participating IOGP Member Companies voluntarily contribute to the process safety data collection process. Lagging Tier 1 and Tier 2 PSE data are submitted for trending and benchmarking. Submitted event information includes a narrative description for Tier 1 PSE, with identification of the point of release, barrier failures and associated causal factors. A review of each data submission is conducted by Member Company specialists in process safety and data reporting to confirm the Tier 1 classification.
The systematic and transparent reporting of Tier 1 PSE, and the annual review process, allow the analysis of the point of release, the material released, release rate and consequences of each event. This information enables the classification as a Tier 1 to be confirmed. During the data review process, a keyword is also allocated to further categorize the Tier 1 PSE and help identify trends and learning. The keywords are based on threat lines in a generic PSE bow tie, which are updated as new threats are identified. In addition, the review of specific events is used to update PSE classification examples on the IOGP website and to raise awareness of emerging risks associated with human performance, design, operational practices, or geographic seasonal PSE areas of concern.
Having the largest database of upstream process safety performance and fatality data, gives IOGP a unique opportunity to encourage upstream industry collaboration and sharing of best practices to prevent process safety events. An example of this is the development of the IOGP Process Safety Fundamentals (PSF), which were based on IOGP PSE fatality data, to provide a standardized industry approach to the prevention of high consequence process safety related events.
Experimental Investigation of Concrete With Red Mud: Performance Evaluation and Comparative Analysis
Authors: Bakshi Shubham , Narayanan Sabarigirivasan Lakshmi 
Published: September 2024

Abstract

The disposal of red mud, a byproduct resulting from the extraction of alumina from bauxite ore, has emerged as a significant environmental issue owing to its elevated alkalinity and substantial concentration of heavy metals. However, recent studies have shown that red mud can be used as an additional cementitious material in concrete, providing not only environmental benefits but also improved mechanical properties and durability. This study investigates the potential of red mud as an innovative material in advanced thermal energy storage (TES) systems, aiming to enhance sustainable development. The rich composition of red mud in iron oxide, aluminum oxide, and silica suggests promising applications in TES, offering both environmental and economic benefits. The studies generally followed a systematic set of stages in the experimental process of manufacturing concrete cubes both with and without red mud as a partial replacement for cement. The necessary components are first obtained, which include cement, fine and coarse aggregates, water, and red mud. To produce the desired M30 grade concrete, a specific mix design is created, taking into account the amounts of each component. For the addition of red mud, to investigate its effect on concrete properties a set percentage of cement is substituted by Red Mud: 0%, 5%, 10%, 15% and 20%. The potential of red mud as a partial substitute for cement in concrete is generally considered to be positive by the results of the studies. Beyond performance, the utilization of red mud offers economic advantages by diminishing the need for cement, thereby fostering significant cost savings and concurrently mitigating environmental impact.
Electroacupuncture alters cannabinoid receptor 1 and transient receptor potential V1 expression on individual brain regions in a mouse fibromyalgia model
Authors: Lin Huan-Chin , Hsu Hsin-Cheng , Lin Yi-Wen 
Published: September 2024

Abstract

Fibromyalgia, one of the most challenging pains to treat, lacks impartial considerations for diagnosis and useful assessment. The core symptoms are persistent extensive pain accompanied by fatigue, psychological disorders, sleep disturbance, and obesity. The current study aims to explore the role of cannabinoid receptor 1 (CB1) signaling pathways in a mouse model of fibromyalgia. This model was subjected to intermittent cold stress (ICS) to induce fibromyalgia, as measured by the nociceptive behavior determined by von Frey and Hargraves’ tests. Our results showed lower mechanical threshold (2.32 ± 0.12 g) and thermal latency (4.14 ± 0.26 s) in ICS-induced fibromyalgia mice. The hyperalgesia could be alleviated by electroacupuncture (EA) or by transient receptor potential V1 (TRPV1) knockout. We found differential expression of CB1 and TRPV1 signaling molecules in specific brain regions: upregulated TRPV1 and related kinases in the dorsal root ganglion, spinal cord, hypothalamus and periaqueductal gray region, and decreased CB1 receptor composition. EA reversed these effects associated with fibromyalgia, aligning with observations inTrpv1−/−mice. Peripheral acupoint or intracerebral ventricle injection of a CB1 agonist or antagonist significantly regulated hyperalgesia through the CB1 signaling pathway. Our discoveries shed light on the involvement of CB1 on the TRPV1 pathway in the effects of EA in fibromyalgia, suggesting its potential as a treatment target.
The effectiveness of thoracal epidural steroid and local anesthetic injection: a randomized, double-blind, controlled trial
Authors: ALİYEV Dostali , BAYRAM Derya , AŞIK İbrahim 
Published: September 2024

Abstract

Background
The primary objective was to evaluate the effectiveness of thoracic interlaminar epidural injections in alleviating pain and enhancing function in patients suffering from chronic mid and/or upper back pain.
Study design
A randomized, double-blind, active controlled trial.
Materials and Methods
One hundred patients were randomly divided into two groups, each consisting of 50 patients. Group I received only a local anesthetic, while Group II received a combination of local anesthetic and steroids. The random assignment to either Group I or Group II was determined using a simple computer-generated sequence.
Outcomes were evaluated using the Numeric Rating Scale (NRS) and the revised Oswestry Disability Index (rODI). Patients who showed significant improvement for more than four weeks after the first two procedures were deemed successful. Those who did not were classified as failed participants. Significant improvement was defined as a reduction of more than 50% in both NRS and rODI scores, with assessments conducted at baseline and at 3, 6, and 12 months post-treatment.
The center where the study was conducted: Ankara University, Faculty of Medicine, Department of Anesthesiology and Reanimation, Division of Algology, Ankara, Turkey
Results
The study included 100 participants, evenly divided into two groups of 50 each. At 12 months, significant pain relief (≥ 50%) and a reduction of at least 50% in ODI scores from baseline were observed in 86% of patients in Group I and 90% of patients in Group II.
Conclusions
The results of this trial suggest that chronic thoracic pain of non-facet joint origin can be managed conservatively using thoracic interlaminar epidural injections, either with or without steroids.
Integrating Deep Learning and Radiomics for Osteoporosis Screening in Elderly Population using Lumbar CT
Authors: Jiang Lezhen , Wang Yi , Wu Hong , Huang Jing , Cai Siqing , Chen Jie , Guo Yifan , Li Yuanzhe 
Published: September 2024

Abstract

Rationale and Objectives:To create and validate an all-encompassing method that combines deep learning and radiomics, enabling the utilization of routine lumbar CT scans for opportunistic screening of osteoporosis.
Materials and Methods:This research collected patient data retrospectively from January 2020 through December 2022. A sample of 100 lumbar vertebrae was selected to develop a UPerNet model for segmenting vertebral bone marrow. The remaining vertebrae were utilized as validation data for the segmentation model and employed to generate a radiomic signature for osteoporosis diagnosis. Subsequently, the remaining vertebrae were allocated into a training set, an internal validation set, and an external validation set, following a 3:1:1 ratio. A total of 1794 radiomic features were extracted from the lumbar vertebral bone marrow. Feature selection was sequentially carried out using the minimum-redundancy maximum-relevance (mRMR) and then the least absolute shrinkage and selection operator (LASSO), followed by the construction of the radiomic signature using logistic regression. The performance of the vertebral segmentation model was evaluated with the Dice coefficient. Intraclass correlation coefficients (ICCs) were calculated to assess the consistency of radiomic feature extraction from automatic segmentation by the UPerNet model and manual segmentation by radiologists. The diagnostic performance of the radiomic signature was assessed using receiver operating characteristic (ROC) analysis.
Results: This study encompassed 438 lumbar vertebrae from 127 patients, with 168 of these vertebrae being osteoporotic. The UPerNet model achieved a Dice coefficient of 0.90 (95%CI: 0.84-0.95) for validation. Of the 1794 radiomic features extracted, 88.45% showed ICC values over 0.8. The area under the curve (AUC) for radiomic signature in the external validation set reached 0.96 (95%CI: 0.91-1.00).
Conclusions: The radiomic signature derived from automatically segmented CT images of lumbar bone marrow using the UPerNet model exhibited high accuracy in osteoporosis screening.
A new method for determining the pore-water pressure around twin shallow circular tunnels
Authors: Zhan Tao , Shan Shengbiao , He Peiyuan 
Published: September 2024

Abstract

In order to obtain the distribution rules of pore-water pressure for twin shallow circular tunnels, the determination approach in the pore-water pressure for the twin shallow circular tunnels buried in a semi-infinite space was proposed by using the bipolar coordinate system method and the Schwarz alternating method for the first time. The solution of pore-water pressure was also obtained by multiple iterations method. The proposed approach was validated by the results of numerical simulation. The maximum error between the results of the analytical solutions from the proposed method and the numerical simulation was only 2.15% when the accuracy was set to 1.0×10-3MPa. At last, influences of the number of holes and the tunnel center spacing on the pore-water pressure were presented. It is shown that the number of holes and the tunnel center spacing were the main factors for the distribution of pore-water pressure, and the pore-water pressure of twin shallow circular tunnels was only greater than the pore-water pressure of single shallow circular tunnel in the upper area of tunnels. And the maximum result for the pore-water pressure of twin shallow circular tunnels was obtained in the midpoint of the tunnel center spacing.
Morphological and biochemical responses of cotton cultivars against thrips infestation
Authors: . Sunidhi , Sharma Sucheta , Singla Prabhjot , Kaur Rimaljeet , Pandher Suneet , Singh Satnam , Pathak Dharminder 
Published: September 2024

Abstract

Thrips damage can affect the morphological characteristics, photosynthetic pigments and biochemical parameters of cotton cultivars. In the pot experiment conducted at RRS, Faridkot, two contrasting cotton cultivars (LH 2107 and LD 491) were infested with thrips after 30 days of sowing. Leaf samples of control and infested plants were collected from 15days post infestation (DPI) at 10 days interval. The highest thrips intensity (38.9 mean thrips/3 leaves) was found in LH 2107 at 90 DAS. Resistant cultivar (LD 491) showed more number of non-granular and glandular trichomes as compared to susceptible cultivar (LH 2107). Correlation analysis of LH 2107 revealed positive correlation of thrips population with reducing sugars, total soluble sugars and total protein. On the other hand, association studies for LD 491 showed that thrips intensity was positively correlated to gossypol, lignin and cellulose. The present study suggests that changes in morphological and biochemical attributes provide resistance against thrips in cotton cultivars. Hence, such attributes can be used as potential markers for developing thrips resistance in cotton through breeding programme.