bluuebunny/crossref_metadata_2025_split huggingface dataset:
Depression and suicidal ideation among undergraduates in state tertiary institutions in Lagos Nigeria
Authors: Ladi-Akinyemi Temitope ’Wunmi , Okpue Adaeze Precious , Onigbinde Oluseyi Adetola , Okafor Ifeoma Peace , Akodu Babatunde , Odeyemi Kofoworola 
Published: April 2023

Background
Depression is a common mental illness affecting majority of the world’s population. However, evidence has shown that undergraduates are at an even higher risk compared to the general population, of developing depression due to the various challenges they face during that period. Suicide has been discovered to be the second leading cause of death among young people. Suicide ideation has been proven to be a predictor for not only suicide attempts but also completed suicides. Therefore, the aim of this study was to assess depression and suicidal ideation among undergraduates in the state tertiary institutions in Lagos, Nigeria.

Method
This study was a descriptive, cross-sectional study carried out among undergraduates in two state tertiary institutions in Lagos, Nigeria using self-administered questionnaire. A total of 750 respondents were recruited using the multistage sampling technique. Data was analysed using SPSS version 27 and the level of significance was set at p -value < 0.05

Results
The survey was conducted among undergraduates in the two state tertiary institutions in Lagos State: Lagos State University (48.3%) and Lagos State Polytechnic (51.7%). The mean age of the respondents was 21.5 (2.7) years. Majority of the respondents were females (54%), single (98.1%), Christians (70.3%), and the source of income of majority of the students was parents (72.8%). From the case vignette used in the questionnaire, 47.6% of the respondents were able to correctly identify depression. The prevalence of depression and suicidal ideation in this study was 22.5% and 21.6% respectively. Depression was statistically significantly associated with suicidal ideation (p < .001). Risk factors that were statistically significantly associated with depression and suicidal ideation were low self-esteem (p < .001), intake of recreational drugs (p < .001), alcohol dependence (p < .001), and positive history of bullying (p < .001).

Conclusion and recommendations
The proportion of respondents with good knowledge of depression was not satisfactory. A strong relationship was found between depression and suicidal ideation indicating that people with depression are at a high risk of having suicidal ideation. Risk factors that were associated with depression and suicidal ideation were bullying, low self-esteem, intake of recreational drugs, alcohol dependence, poor academic performance, sexual assault and being hit by a partner. More works need to be done by the government and non-governmental organisations, school administration and parents to increase the awareness on the symptoms and manifestations of depression and reduce the burden created by some of the risk factors identified in this study to combat depression and suicidal ideation.
Mechanical and tribological behaviour of novel Al–12Si-based hybrid composites
Authors: Şap Serhat 
Published: April 2023

Abstract
Aluminium matrix composites with high abrasion resistance, which can adapt to high temperatures and difficult operating conditions, are needed in the automotive and aerospace industries. For this purpose, Al–12Si–TiB2–Al2O3 composites were developed with the addition of TiB2–Al2O3 ceramic reinforcements at different rates and Gr at a constant rate. High densities were achieved by using the hot pressing method with powder metallurgy. Microstructural analyzes (SEM, EDS, X-RD) of the produced samples were made. In addition, mechanical properties (hardness and three-point bending) were investigated. The best tribological features were determined with the help of Taguchi, ANOVA and the prediction model. As a result, with the addition of TiB2 and Al2O3 reinforcements to the Al–12Si matrix, significant increases in hardness occur. In the bending analysis, it was determined that the reinforcements made the hybrid composite strong up to a certain point. From a tribological point of view, the A3 hybrid composite showed the best wear performance. Test conditions were analyzed with the help of Taguchi L18 orthogonal array and analysis of variance (ANOVA). With the help of ANOVA, it was determined that the most effective factors on the response parameters were the applied load and MMC type.
Rayleigh–Taylor stability of quantum magnetohydrodynamic plasma with electron inertia and resistivity
Authors: Pathan Tanveer A. , Sutar Devilal , Pensia Ram K. , Dashora Himani 
Published: April 2023

Abstract
The analytical observation of the simultaneous impacts of electrical resistivity, finite Larmor radius (FLR) correction, and electron inertia on the magnetohydrodynamic Rayleigh–Taylor unstable mode of incompressible rotating quantum plasma is carried out. The perturbation formulations of the problem are derived by applying the QMHD model to obtain the dispersion equation for the stratified quantum hydrodynamic fluid plasma. The dispersion equation is analyzed graphically and numerically for the various cases. It is obtained that the simultaneous impacts of rotation, resistivity, FLR correction, electron inertia, and quantum correction modify the Rayleigh–Taylor (RT) unstable mode of the stratified magnetized fluid plasma. The graphical studies show that the rotational effect destabilizes or stabilizes the Rayleigh–Taylor (RT) instability of the magnetized quantum plasma, with or without the impacts of electrical resistivity and electron inertia. This result may be useful for studying the magnetic reconnection process and its applications, viz., supernova explosions, neutron stars, white dwarfs, etc.
A Narrative Review of Performance and Health Research in US Army Rangers
Authors: Roberts Brandon M. , Mantua Janna , Naylor Jacob A. , Ritland Bradley M. 
Published: April 2023

Abstract
Roberts, BM, Mantua, J, Naylor, JA, and Ritland, BM. A narrative review of performance and health research in US army rangers. J Strength Cond Res 37(5): 1157–1161, 2023—The 75th Ranger Regiment (75RR) is an elite airborne infantry unit that is prepared to deploy on short notice and is resourced to maintain exceptional proficiency and readiness through prolonged deployments. To become a member of the 75RR, Soldiers must successfully complete the physically and mentally demanding Ranger Assessment and Selection Program (RASP). They must also become airborne qualified, if not already, and successfully complete Ranger School in order to continue to serve in the 75RR. Rangers must maintain a level of physical performance comparable to high-level athletes while also handling operational stressors that include a negative-energy balance, high-energy expenditure, sleep restriction, and completing missions in extreme environments, all of which increase their chance of illness or injury. This narrative review aims to focus on the literature surrounding performance and health-related research in US Army Rangers in order to understand how Rangers are impacted during training/operations, to inform future training recommendations, and to identify areas of future research that are warranted and could potentially optimize the health and performance of Rangers during future training/operation events.
Respiratory Outcomes for Ventilator-Dependent Children With Bronchopulmonary Dysplasia
Authors: Manimtim Winston M. , Agarwal Amit , Alexiou Stamatia , Levin Jonathan C. , Aoyama Brianna , Austin Eric D. , Bansal Manvi , Bauer Sarah E. , Cristea A. Ioana , Fierro Julie L. , Garey Donna M. , Hayden Lystra P. , Kaslow Jacob A. , Miller Audrey N. , Moore Paul E. , Nelin Leif D. , Popova Antonia P. , Rice Jessica L. , Tracy Michael C. , Baker Christopher D. , Dawson Sara K. , Eldredge Laurie C. , Lai Khanh , Rhein Lawrence M. , Siddaiah Roopa , Villafranco Natalie , McGrath-Morrow Sharon A. , Collaco Joseph M. 
Published: April 2023

OBJECTIVES
To describe outpatient respiratory outcomes and center-level variability among children with severe bronchopulmonary dysplasia (BPD) who require tracheostomy and long-term mechanical ventilation.

METHODS
Retrospective cohort of subjects with severe BPD, born between 2016 and 2021, who received tracheostomy and were discharged on home ventilator support from 12 tertiary care centers participating in the BPD Collaborative Outpatient Registry. Timing of key respiratory events including time to tracheostomy placement, initial hospital discharge, first outpatient clinic visit, liberation from the ventilator, and decannulation were assessed using Kaplan-Meier analysis. Differences between centers for the timing of events were assessed via log-rank tests.

RESULTS
There were 155 patients who met inclusion criteria. Median age at the time of the study was 32 months. The median age of tracheostomy placement was 5 months (48 weeks’ postmenstrual age). The median ages of hospital discharge and first respiratory clinic visit were 10 months and 11 months of age, respectively. During the study period, 64% of the subjects were liberated from the ventilator at a median age of 27 months and 32% were decannulated at a median age of 49 months. The median ages for all key events differed significantly by center (P ≤ .001 for all events).

CONCLUSIONS
There is wide variability in the outpatient respiratory outcomes of ventilator-dependent infants and children with severe BPD. Further studies are needed to identify the factors that contribute to variability in practice among the different BPD outpatient centers, which may include inpatient practices.
Fault Damage Zone Effects on Ground Motions during the 2019 Mw 7.1 Ridgecrest, California, Earthquake
Authors: Yeh Te-Yang , Olsen Kim B. 
Published: April 2023

ABSTRACT
We have simulated 0–3 Hz deterministic wave propagation in the Southern California Earthquake Center Community Velocity Model (CVM) version CVM-S4.26-M01 for the 2019 Mw 7.1 Ridgecrest earthquake. A data-constrained high-resolution fault zone model (Zhou et al., 2022) is incorporated into the CVM to investigate the effects of the near-fault low-velocity zone (LVZ) on the resulting ground motions, constrained by strong-motion data recorded at 161 stations. The finite-fault source used for the simulation of the Ridgecrest event was obtained from the Liu et al. (2019) kinematic inversion, enriched by noise following a von Karman correlation function above ∼1 Hz with a f−2 high-frequency decay. Our results show that the heterogeneous near-fault LVZ inherent to the fault zone structure significantly perturbs the predicted wave field in the near-source region, in particular by more accurately generating Love waves at its boundaries. The fault zone decreases the 0.1–0.5 Hz mean absolute Fourier amplitude spectrum bias to seismic recordings for all sites in the model and in the Los Angeles basin area (∼200 km from the source) by 16% and 26%, respectively. The fault zone structure generally improves modeling of the long-period features in the data and lengthens the coda-wave trains, in better agreement with observations. The favorable fit to data was obtained with a model including high-resolution surface topography, a 700-m-thick geotechnical layer and frequency-dependent anelastic attenuation in the model domain, with QS=0.1VS and QS(f)=0.1VSf0.5 (VS in m/s) for frequencies lower and higher than 1 Hz, respectively. We recommend that a data-constrained fault zone velocity structure, where available, be included in ground-motion modeling to obtain the least-biased fit to observed seismic data.
Geomechanical Modeling of Ground Surface Deformation Associated with Thrust and Reverse-Fault Earthquakes: A Distinct Element Approach
Authors: Chiama Kristen , Chauvin Benjamin , Plesch Andreas , Moss Robb , Shaw John H. 
Published: April 2023

ABSTRACTWe seek to improve our understanding of the physical processes that control the style, distribution, and intensity of ground surface ruptures on thrust and reverse faults during large earthquakes. Our study combines insights from coseismic ground surface ruptures in historic earthquakes and patterns of deformation in analog sandbox fault experiments to inform the development of a suite of geomechanical models based on the distinct element method (DEM). We explore how model parameters related to fault geometry and sediment properties control ground deformation characteristics such as scarp height, width, dip, and patterns of secondary folding and fracturing. DEM is well suited to this investigation because it can effectively model the geologic processes of faulting at depth in cohesive rocks, as well as the granular mechanics of soil and sediment deformation in the shallow subsurface. Our results show that localized fault scarps are most prominent in cases with strong sediment on steeply dipping faults, whereas broader deformation is prominent in weaker sediment on shallowly dipping faults. Based on insights from 45 experiments, the key parameters that influence scarp morphology include the amount of accumulated slip on a fault, the fault dip, and the sediment strength. We propose a fault scarp classification system that describes the general patterns of surface deformation observed in natural settings and reproduced in our models, including monoclinal, pressure ridge, and simple scarps. Each fault scarp type is often modified by hanging-wall collapse. These results can help to guide both deterministic and probabilistic assessment in fault displacement hazard analysis.
A produção de texto como prática centrada no aluno: sujeito da aprendizagem
Authors: Andrade Benedita Vieira de 
Published: April 2023

<p>Neste trabalho, apresenta-se uma abordagem da escrita numa visão interacionista, que concebe a linguagem como uma forma de interação entre os interlocutores nas situações comunicativas de que participam. Nessa perspectiva, a escrita é concebida como prática discursiva que se materializa em situações sociais de interação. Assim, são contemplados alguns princípios que fazem da escrita uma atividade interlocutiva, como o que dizer, a quem dizer, por que dizer e como dizer. Esses princípios orientam uma prática de escrita centrada no aluno como sujeito da aprendizagem, instaurador da atividade de interlocução. São apresentados também alguns fatores que podem auxiliar na manutenção da linha argumentativa do texto, progressão temática, articulação e coerência de seus argumentos.</p>
Peramalan curah hujan di Provinsi Aceh menggunakan metode Box-Jenkins
Authors: Nurhafifah Nurhafifah , Patriardian Ferdy , Hidayati Alfy , Alzahira Ratu Rahil , Tasyant Deva Jhuandra , Anwar Samsul 
Published: April 2023

Floods are one of the natural disasters that frequently occur in Indonesia, including in Aceh Province. Floods primarily occur when rainfall is intense, mainly in the rainy season. Flood disaster management in Aceh Province is still not optimal, so efforts are required to minimize the negative effects of the flood disaster. One of the efforts that can be done is to predict the rainfall that may occur in the future. This study aims to predict rainfall in Aceh Province in 2022 and 2023. The data employed are monthly rainfall data in Aceh Province from 2014 to 2021. The forecasting method employed to predict rainfall is the Autoregressive Moving Average (ARMA) model. Forecasting results using the ARMA (8,6) model show that rainfall in Aceh Province in 2022 and 2023 are predicted to tend to be intense in March, April, May, September, October and November. The Aceh government together with the district/city governments need to prepare anticipatory steps, for example by cleaning water flows like ditches and rivers and socializing about the dangers of flooding and its causes, especially for people living in watersheds. These actions are expected to minimize the potential for flooding in Aceh Province in the future, especially when rainfall is predicted to be intense.
Keywords:Aceh Province, box-jenkins, flood, forecasting, rainfallMSC2020:62M10
Development of Student Worksheet with an Ethnoscience Approach to Wati Plants Through Liveworksheet Applications
Authors: Sahnia Rumadan Nia , Asmaningrum Henie Poerwandar , Bela Sumanik Novike 
Published: April 2023

This study aims to develop the student worksheet on Addictive Substances material with the Wati Plant ethnoscience approach through the Liveworksheet application that is feasible in terms of validity and practicality. This type of research is R&D research using the ADDIE model, namely: Analyze, Design, Development, Implementation, and Evaluation. However, this research is limited to the third stage, namely the Development stage. The research subjects were one material expert, one media expert, one practitioner, and ten students of the Chemistry Education Department, Musamus University. The instruments used in data collection were interview guidelines and questionnaires. The results showed that the student worksheet on Addictive Substances material with the Wati Plant ethnoscience approach through the Liveworksheet application got a percentage of 94% at the 6th meeting and 97% at the 7th meeting from material experts, 95% at meetings 6 and 7 from media experts, 84% at the 6th meeting and 86% at the 7th meeting of practitioner responses and 90% at the 6th meeting and 88% at the 7th meeting of student responses. Based on the results of these studies, it can be concluded that the student worksheet on Addictive Substances material with the Wati Plant ethnoscience approach through the Liveworksheet application is feasible in terms of validity and practicality aspects
Efektivitas Taman Kota Madiun dalam Memenuhi Kebutuhan Ruang Publik dari Perspektif Pengunjung
Authors: Hapsari Shabrina , Rini Erma Fitria , Rahayu Murtanti Jani 
Published: April 2023

<p><em>Taman kota merupakan ruang publik yang tersedia di kota guna memenuhi kebutuhan masyarakat untuk beraktivitas, beristirahat, </em><em>dan</em><em> </em><em>berwisata. Kota Madiun sebagai pusat pengembangan wilayah di Provinsi Jawa Timur bagian barat menjadi magnet bagi kabupaten di sekitarnya sehingga meningkatkan aktivitas di Kota Madiun. Meningkatnya aktivitas kota membuat tingginya mobilitas penduduk sehingga keberadaan taman kota penting untuk mengimbanginya. Dalam mencapai perannya, taman kota tidak hanya dilihat dari keberadaannya, tetapi juga bagaimana taman kota tersebut mampu memenuhi kebutuhan pengunjung. Tujuan dari penelitian ini adalah untuk mengetahui tingkat efektivitas taman-taman di Kota Madiun dilihat dari kebutuhan pengunjung terhadap ruang publik. Penelitian ini merupakan penelitian kuantitatif yang menggunakan pendekatan deduktif. Teknik pengumpulan data dilakukan dengan menggunakan kuesioner, observasi, dan studi literatur. Penelitian ini menggunakan teknik analisis skoring dengan pengukuran Skala Guttman. Efektivitas taman kota dilihat dari kebutuhan pengunjung taman kota, yaitu kenyamanan, keamanan, aktivitas, dan aksesibilitas. Berdasarkan analisis terhadap keempat kebutuhan pengunjung di ruang publik tersebut, keamanan merupakan kebutuhan yang terpenuhi di setiap taman kota, sedangkan ketiga kebutuhan lain belum terpenuhi secara keseluruhan di setiap taman kota. Tingkat efektivitas taman kota dibagi ke dalam tiga kategori, yaitu efektif, cukup efektif, dan tidak efektif. Berdasarkan hasil analisis, tujuh taman kota di Kota Madiun termasuk dalam kategori efektif dan satu taman kota masuk dalam kategori cukup efektif.</em></p>
Dukungan Kinerja Pengelolaan Sampah terhadap Kesesuaian Penerapan Konsep Keberlanjutan Lingkungan di Kota Mataram
Authors: Al-Giffari Muh. Haikal , Yudana Galing , Suminar Lintang 
Published: April 2023

<em><span lang="IN">Kota kini bukan sekedar tempat bermukim, melainkan juga sebagai pusat pelayanan yang harus dapat melayani masyarakat kota dan daerah sekitarnya. Dalam perkembangan</span><span lang="EN-US">nya,</span><span lang="IN"> suatu kota tidak terlepas dari permasalahan dan hambatan seperti kebutuhan terhadap pembangunan, menurunnya ketersediaan sumber daya, kurangnya fasilitas umum, dan permasalahan lingkungan. Salah satu permasalahan yang kerap hadir</span><span lang="EN-US"> di perkotaan</span><span lang="IN"> dan belum mampu diatasi dengan maksimal</span><span lang="EN-US"> adalah</span><span lang="IN"> permasalahan terkait pengelolaan sampah</span><span lang="EN-US">. S</span><span lang="IN">ampah yang tidak dikelola dengan baik dapat menyebabkan permasalahan bagi perkembangan suatu kota. Kota sebagai pusat pelayanan berpotensi meningkatkan pertumbuhan penduduk dan kegiatan di dalamnya, sehingga secara tidak langsung produksi sampah yang dihasilkan akan meningkat. Oleh karena itu, </span><span lang="EN-US">di</span><span lang="IN">perlu</span><span lang="EN-US">kan</span><span lang="IN"> adanya pengelolaan sampah yang memadai sehingga dapat mempermudah perkembangan suatu kota ke</span><span lang="IN">depannya. Kota Mataram merupakan Ibu</span><span lang="EN-US">k</span><span lang="IN">ota Provinsi Nusa Tenggara Barat dan menjadi salah satu pusat pelayanan yang ada</span><span lang="EN-US">. P</span><span lang="IN">ada tahun 2021</span><span lang="EN-US">,</span><span lang="IN"> Kota Mataram memiliki jumlah penduduk sebanyak 495.681 jiwa dengan luas wilayah sebesar 6.130 Ha. Dengan jumlah penduduk 495.681 jiwa, timbulan sampah di Kota Mataram cukup tinggi sehingga perlu adanya pengelolaan sampah yang memadai dalam mengurangi dan menangani sampah serta mengurangi dampak negatif dari </span><span lang="IN">produksi sampah yang ada. Berdasarkan kondisi tersebut</span><span lang="EN-US">,</span><span lang="IN"> penelitian </span><span lang="IN">ini mengkaji kesesuaian kinerja pengelolaan sampah dalam mendukung penerapan konsep keberlanjutan lingkungan di Kota Mataram. Metode penelitian yang digunakan pada penelitian ini adalah pendekatan kuantitatif dengan metode deskriptif</span><span lang="EN-US">. P</span><span lang="IN">endekatan kuantitatif </span><span lang="EN-US">dilakukan melalui</span><span lang="IN"> perhitungan skoring pada tiap indikator dalam variabel yang akan menentukan tingkat klasifikasi </span><span lang="IN">kesesuaian kinerja pengelolaan sampah dalam mendukung penerapan konsep keberlanjutan lingkungan di Kota Mataram. Terdapat enam komponen yang dikaji dalam penelitian ini, yaitu aspek teknis, aspek kelembagaan, aspek pembiayaan, aspek kebijakan, aspek peran masyarakat, dan target kinerja pengelolaan sampah. Berdasarkan hasil, kinerja pengelolaan sampah di Kota Mataram berada pada tingkatan klasifikasi kurang sesuai dalam mendukung penerapan konsep keberlanjutan lingkungan.</span></em>