bluuebunny/crossref_metadata_2025_split huggingface dataset:
Incidence of and Experiences with Abortion Attempts in Soweto, South Africa: Respondent-Driven Sampling Study
Authors: Gerdts Caitlin , Jayaweera Ruvani T , Motana Relebohile , Bessenaar Tshegofatso , Wesson Paul 
Published: October 2022

Background
Estimation of abortion incidence, particularly in settings where most abortions occur outside of health facility settings, is critical for understanding information gaps and service delivery needs in different settings. However, the existing methods for measuring out-of-facility abortion incidence are plagued with methodological challenges. Respondent-driven sampling (RDS) may offer a methodological improvement in the estimation of abortion incidence.

Objective
In this study, we tested the feasibility of using RDS to recruit participants into a study about abortion and estimated the proportion of people who ever attempted abortion as well as 1-year and 5-year incidence of abortion (both in-facility and out-of-facility settings) among women of reproductive age in Soweto, South Africa.

Methods
Participants were eligible if they identified as a woman; were aged between 15 and 49 years; spoke English, Tswana, isiZulu, Sotho, or Xhosa; and lived in Soweto. Working with community partners, we identified 11 seeds who were provided with coupons to refer eligible peers to the study. Upon arrival at the study site, the recruits completed an interviewer-administered questionnaire that solicited information about demographic characteristics, social network composition, health behaviors, sexual history, pregnancy history, and experience with abortion; recruits also received 3 recruitment coupons. Recruitment was tracked using coupon numbering. We used the RDS-II estimator to estimate the population proportions of demographic characteristics and our primary outcome, the proportion of people who ever attempted abortion.

Results
Between April 4, 2018, and December 17, 2018, 849 eligible participants were recruited into the study. The estimated proportion of people who ever attempted abortion was 12.1% (95% CI 9.7%-14.4%). A total of 7.1% (95% CI 5.4%-8.9%) reported a facility-based abortion, and 4.4% (95% CI 3.0%-5.8%) reported an out-of-facility abortion.

Conclusions
The estimated proportion of people who ever attempted abortion of 12% (102/849) in our study likely represents a substantial underestimation of the actual proportion of abortion attempts among this study population—representing a failure of the RDS method to generate more reliable estimates of abortion incidence in our study. We caution against the use of RDS to measure the incidence of abortion because of persistent concerns with underreporting but consider potential alternative applications of RDS with respect to the study of abortion.
STRESS ANALYTICS OF MEDICAL STUDENTS AT FACULTY OF MEDICINE UNIVERSITY OF SURABAYA
Authors: Widjaja Sajuni , Cahyono Agus 
Published: October 2022

Background: Stress is a mental response of a person's body that arises as a reaction to external demands that are considered dangerous or threatening him / her. Various studies have shown that stress on students especially on medical students is very high. This study specifically aimed to analyze the level of stress in preclinical students level 1, 2 and 3 of the Faculty of Medicine, University of Surabaya. Case discussion : This research is an analytic survey with a cross-sectional study approach. Data were collected through the Medical Student Stressor Questionnaire (MSSQ). A total of 114 medical students were obtained, consisting of 85 female students and 29 male students. Number of class 2017 are 38 medical students, number of class 2018 are 37 medical students, and class 2019 are 39 medical students. A total of 94 medical students live with their parents but the remaining 20 medical students do not live with their parents. Stressors in this study consisted of six groups, namely academic-related stressors (ARS), intrapersonal and interpersonal related stressors (IRS), teaching and learning related stressors(TLRS), social related stressors (SRS), drive and desire related stressors (DRS), group activities related stressors (GARS).Conclusion: It was found that the most stressors were academic-related stressors. Women are generally more stressed than men in drive and desire related stressors. There were no different stress between medical students who live and not live with their parents.
Pengaruh Kemandirian Belajar dan Keterlibatan Siswa Terhadap Efektivitas Belajar Dimoderasi Kesiapan Belajar di Masa Pandemi Covid 19
Authors: Rofiin Rofiin , Fauzan Mohammad 
Published: October 2022

Tujuan penelitian ini adalah menguji dan menganalis tentang (1) pengaruh kemandirian belajar terhadap efektivitas belajar daring (2) pengaruh keterlibatan siswa terhadap efektivitas belajar daring, (3) pengaruh kesiapan belajar terhadap efektivitas belajar daring, (4) Kesiapan belajar memoderasi kemandirian belajar terhadap efektivitas belajar daring, (5) kesiapan belajar memoderasi keterlibatan siswa terhadap efektivitas belajar daring. Jenis penelitian adalah penelitian penjelasan. Populasi penelitian adalah seluruh siswa kelas VIII SMP Negeri 22 Semarang tahun pelajaran 2021/2022 berjumlah 256 orang. Semua anggota populasi dijadikan sampel (sensus) . Data yang digunakan adalah data primer yang diperoleh langsung dari responden melalui kuesionair. Teknik analisis menggunakan model regresi quasi moderasi. Temuan penelitian yang diperoleh adalah (1) kemandirian belajar berpengaruh positif terhadap efektifitas belajar daring. (2) Keterlibatan siswa berpengaruh negatif terhadap efektivitas belajar daring. (3) Kesiapan belajar berpengaruh positif dan signifikan terhadap efektifitas belajar daring. (4) Kesiapan belajar memperlemah pengaruh kemandirian belajar terhadap efektifitas belajar daring. (5) Kesiapan belajar memperkuat pengaruh keterlibatan siswa terhadap efektifitas belajar daring.
Атомное реакционное излучение и его влияние на предбифуркационные состояния атомов
Authors: Сдобин Александр 
Published: October 2022

Вводится понятие атомных продольных эфирных волн, излучаемых нуклонами ядра и его орбитальными электронами, как вихревыми эфирными образованиями и которое может влиять на динамику протекания физических и химических процессов. Также вводится понятие предбифуркационного состояния атомов как переходного состояния атомов перед их делением или перед началом участия атомов в химических реакциях, а также в иных физических процессах.
Также предложено объяснение феномена макроскопических флуктуаций как резонансного взаимодействия согласованного излучения атомов-осцилляторов с внешним атомным реакционным излучением.
Application Research of Mathematica Software in Calculus Teaching
Authors: Xu Lei , Chen Kan 
Published: October 2022

Abstract
Under the background of teaching in the new era, image recognition, operation, and processing of experimental data are still the focus of calculus teaching. Mathematica has powerful functions as mathematical software and was developed by Wolfram Research. Aiming at the complex symbols and data operation problems in many fields, the software flexibly combines mathematics branches such as geometry and algebra, dramatically simplifying the operation process. This paper takes Mathematica’s existing mathematical software as a reference to discuss whether the addition of such software helps improve the effectiveness of daily teaching. The study found that using this software can stimulate students’ interest and enhance the quality of education.
Примена проширене реалности у систему за производњу и рециклажу пластичних кеса
Authors: Beader Milan 
Published: October 2022

На почетку рада описан је концепт Индустрије 4.0, теоријски преглед система проширене реалности, опис система за производњу и рециклажу пластичних кеса, као и опис СКАДА апликације која је развијана за његов даљински надзор и управљање. Након тога, приказана је апликација проширене реалности као надоградња оваквог система, развијена коришћењем Вуфориа енџина и Јунити едитор развојног окружења.
Concomitant multiple sclerosis and ankylosing spondylitis: a clinical case report
Authors: Estere Zeltina , Liga Meksa , Anda Kadisa , Guntis Karelis , Daina Pastare , Sandra Svilpe , Elina Polunosika , Liga Jaunozolina 
Published: October 2022

Background:
The therapy of patients with concomitant multiple sclerosis (MS) and ankylosing spondylitis (AS) is a challenge for clinicians. Secukinumab is effective in the treatment of MS. In the clinical case, we present, substantial clinical and radiological remission in the case of both autoimmune diseases was observed.

Case Presentation:
A male adult was diagnosed with relapsing-remitting MS. The patient complained of severe thoraco-lumbar pain. Magnetic resonance imaging (MRI) led to a diagnosis of AS. Considering that nonsteroidal anti-inflammatory drugs were ineffective and tumor necrosis factor-α blockers are contraindicated in patients with MS, secukinumab was prescribed. MRI 8 months after initiation of therapy provided clinical stability in consideration of the two autoimmune comorbidities.

Conclusion:
Secukinumab is an effective therapy for concomitant MS and AS.
Characteristics of Kedondong Trass and Bobos Trass as Cement Raw Material, Cirebon, West Java, Indonesia
Authors: Marin Jenian , Winarno Tri , Fairuz Shofiana Nadia 
Published: October 2022

The use of cement materials in construction continues to increase every year, consumes lots of raw material and emits CO2 from clinker production. To eliminate this negative effect, alternative materials are needed. Trass is natural pozzolan which is formed from silica-alumina rich volcanic rocks. As supplementary cementitious material, trass is sufficiently durable and reduce clinker proportion in cement mixture, thus more environmentally friendly.
This research aims to determine characteristics and composition of Kedondong trass and Bobos trass, Cirebon, West Java as raw material for pozzolan cement. The study was conducted using petrography and XRD analysis to determine mineralogy of rocks. XRF analysis was carried out to determine chemical composition as well as other tests to determine trass quality.
Kedondong trass is originated from andesite intrusion and andesitic breccia, while Bobos trass is formed from hypersthene-andesite intrusion. Based on mineralogy analysis, trasses have similar mineral composition consist of plagioclase, quartz, pyroxene, hornblende, and sanidine. XRD analysis shows abundance of cristobalite and tridymite from each samples. This mineralogy is confirmed by geochemistry result, which is the samples contain more than 70% SiO2 + Al2O3 and less than 4% SO3. Other chemical characteristics that have been tested are moisture content, ignition loss, and clay content in which all of those parameters meet the industrial standard for cement material.
Registro de la perdiz veracruzana o Chivizcoyo (Dendrortyx barbatus Gould) en la sierra norte de Oaxaca, México
Authors: Aguilar-Rodríguez Sergio H. 
Published: October 2022

Se describe el primer registro de la Perdiz Veracruzana o Chivizcoyo (Dendrortyx barbatus) en la Sierra Norte de Oaxaca. Los métodos usados para obtener su registro así como la vegetación del área son descritos. Se menciona el conocimiento local autóctono de ave y su importancia económica, pese a no haber sido anteriormente registrada por ornitólogos. Se discuten evidencias que agregan certeza al registro y se menciona la importancia de éste para la ampliación de su rango de distribución.
“Waste-free Cities” Construction and Carbon Emission Reduction in China: Based on the Perspective of Circular Economy
Authors: Wang Sheng , Feng Yuan 
Published: October 2022

Solid waste and carbon dioxide are important elements of environmental governance. Under the background of carbon peaking and carbon neutrality goals, the research on whether and how to promote the construction of “no waste cities” and carbon emission reduction is of great significance in China. The generation of solid waste and greenhouse gases such as carbon dioxide has the same origin, which can be well coordinated to promote environmental governance.
Pemilihan Alternatif Bahan Baku Prototype Tumbler dengan Menggunakan Metode SAW dan WP
Authors: Lumban Gaol Anita Febriany , Julianti Metiovani , Rahayu Oky , Simanjuntak Indah , Silaban Manaris , Siboro Benedikta Anna 
Published: October 2022

Berkembangnya Coronavirus yang terjadi di Wuhan dan di seluruh dunia, membutuhkan penanganan yang serius agar dapat memutuskan rantai penyebaran virus Coronavirus. Menurut World Health Organization (WHO), virus ini dapat menyebar dengan cepat melalui tetesan kecil air liur yang keluar dari hidung atau mulut orang yang terinfeksi Coronavirus. Sehingga terdapat beberapa hal yang dapat dilakukan untuk mencegah penularan virus ini, seperti menaati peraturan 3M (Mencuci tangan, Memakai masker, dan Menjaga jarak), membersihkan permukaan benda dengan cairan pembersih dan menggunakan barang pribadi. Untuk memutuskan penularan Coronavirus, maka dilakukan inovasi terhadap alat makan (Tumbler). Tumbler merupakan salah satu produk minuman yang ditujukan pada bagi semua kalangan. Tujuan penelitian ini dilakukan untuk menentukan bahan baku yang tepat dalam membuat prototype tumbler yang sesuai bagi anak-anak usia 6-12 tahun menggunakan metode Simple Additive Weighting (SAW) dan Weighted Product (WP). Hasil penelitian yang telah dilakukan, diperoleh bahwa material prototype Tumbler yang paling efektif dan terbaik yaitu material stainless steel dengan nilai Vi sebesar 0,66 (metode SAW) dan 1,00 (metode WP).
ANALISIS TEKNIS DAN SIMULASI LOAD FLOW PENERAPAN SHORE CONNECTION DI PELABUHAN TERMINAL BERLIAN-SURABAYA
Authors: Mujahid Tutus Mahardika , Setiyoko Annas Singgih , Darmajanti Perwi 
Published: October 2022

Emisi gas buang dari pelayaran internasional terus meningkat setiap tahunnya, teknologi shore connection merupakan terobosan baru dalam mengurangi emisi mesin bantu kapal. Diperlukan penelitian untuk mengetahui bagaimana instalasi shore connection yang sudah terpasang. Penelitian ini menggunakan metode analisis kapasitas pengaman dan penghantar dengan perhitungan manual dan pembuktian kelayakan dengan menggunakan simulasi aliran daya berbasis aplikasi Electrical Transient Analizer Program (ETAP). Dari analisis teknis, sistem shore connection yang terpasang saat ini membutuhkan perbaikan pada kapasitas hantar arus konduktor dari panel dermaga ke kapal dan konduktor dari panel junction ke ACB LVMDP agar memenuhi persyaratan PUIL 2011 mengacu pada perhitungan berdasarkan arus pembebanan penuh 347,83 A. Hasil simulasi aliran daya dengan mengacu standar IEC PAS 80005-3, terdapat kondisi under voltage yang tidak memenuhi standar pada hasil simulasi shore connection terpasang dengan nilai under voltage terendah 91,52% dari tegangan standar 440 volt atau sama dengan 403 volt dalam kondisi pembebanan penuh. Adapun hasil simulasi shore connection setelah dilakukan perancangan ulang seluruh tegangan berada dalam batas standar dengan under voltage terendah 95,21% % dari tegangan standar 440 volt atau sama dengan 419 volt dalam kondisi pembebanan penuh.
ANALISA DAYA DUKUNG TIANG PONDASI DENGAN MENGGUNAKAN METODE DINAMIK
Authors: Safitri Rully Angraeni , Almufid Almufid , Rusdiyanto3 Faris Izzuddin 
Published: October 2022

Dalam merencanakan suatu bangun diatas tanah, perlu dilakukannya data penyelidikan tanah dilapangan (SPT), agar bisa ditentukan jenis pondasi apah yang digunakan. Pondasi merupakan bangunan struktur yang mentransfer beban dari bangunan atas ke tanah, Pondasi dalam jenis tiang pancang yang sering kita gunakan dan kita lihat. Uji pembebanan harus dilakukan agar mengetahui pondasi yang kita buat bisa atau tidak menahan beban rencana bangunan yang kita design. kapasitas daya dukung ijin tiang pondasi didapat dari data penyelidikan tanah SPT dan bisa dibuktikan dengan hasil interprestasi uji pembebanan dan dibandingkan dengan hasil perencanaan. Salah satu metode analisis perhitungan data penyelidikan tanah SPT mengunakan metode Mayorhof, Uji pembebanan dilakukan beracuan dengan ASTM 1143-81 approved 1994, analisis perhitungan hasil uji interprestasi uji pembebanan mengunakan metode PDA. Analisis perhitungan kapasitas daya dukung ijin tekan tiang pondasi pancang dianggap tunggal. Kata kunci: Mekanika tanah, Pondasi dalam,Mayorhof, Uji tiang pembebanaan PDA,
PENENTUAN JUMLAH PEKERJA OPTIMAL PADA BAGIAN RECEIVING DENGAN METODE WORK LOAD ANALYSIS (STUDI KASUS PT. BATAM AERO TECHNIC)
Authors: Lestari Sri Lestari , Darmala Rio Septian Putra 
Published: October 2022

Pada dunia industri yang semakin maju ini membuat para pelaku industri baik industri manufaktur maupun jasa semakin berkompetitif dalam bersaing. Salah satu yang perlu diperhatikan perusahaan dalam mengatur sistem manajemennya adalah mengoptimalkan penggunaan sumber daya manusia yang dimiliki. Karena dari hal tersebut perusahaan dapat melihat bagaimana penggunaan sumber daya manusia yang dimiliki serta pencapaian target maksimal yang diinginkan perusahaan. Skripsi ini membahas tentang analisa beban kerja dan perencanaan jumlah tenaga kerja optimal pada bagian receiving PT. Batam Aero Technic, dilatar belakangi proses kerja masih banyak memiliki waktu kosong atau menganggur dan terindikasi memiliki kelebihan karyawan. Dalam penelitian ini metode yang digunakan adalah workload analysis dan dibantu dengan tool worksampling untuk mengetahui persentase dari kegiatan produktif dan menganggu yang dilakukan oleh karyawan pada saat di lokasi kerja. Hasil penelitian ini menunjukan untuk menyelesaikan proses receiving membutuhkan waktu 8.27 menit, didapatkan tingkat persentase produktif yang teramati adalah sebesar 70% dan jumlah pekerja optimal yang dibutuhkan oleh perusahaan pada bagian receiving adalah sebanyak 5 orang yang berarti jumlah pekerja yang sekarang dipekerjakan mengalami kelebihan pekerja yang mengakibatkan proses kerja kurang optimal dan efisien. Kata Kunci: Managemen Sumber Daya Manusia, Manpower Planing, Produktifitas Kerja, Workload Analysis, Work sampling
Interrelation between Education and Livelihoods: A Study of Tamang Community in Kathmandu
Authors: Lama Ramesh Kumar 
Published: October 2022

This study attempts to explore the relationship between education and livelihood of Tamang people of residing Gokarneshwor municipality, Kathmandu district. Thirty six head of households have been selected by simple random sampling techniques and 4 by purposive. The quantitative and qualitative both data have been collected using structured questionnaires, interview and observation tools. The descriptive statistics was used to analyze the data. It was found that literacy rate of head of households was below the national literacy rate and literacy of all members of the family was above it. The access to natural capital was in diminishing trend. The livelihoods of Tamang people is still in traditional pattern. The average income of the households was found near to the national per capita income with no saving and Gini coefficient of income distribution was 0.269. There was positive relationship of education attainment with income and livelihoods of people. The sustainability of livelihoods of people has been found unsecured.
Application of Digital CCD Camera for Monitoring of Particle-In-Flight Parameters in Plasma and HVOF Spraying
Authors: Ignatiev M. , Smurov I. , Bertrand P. 
Published: October 2022

Abstract
This paper compares two approaches for monitoring in-flight particle properties during thermal spraying, one based on an industrial CCD camera, the other on a commercial diagnostic system. The camera and detector of the diagnostic tool were installed on opposite sides of a jet axis at a point where a workpiece would normally be placed for coating. Test results for a wide range of powder mixtures sprayed using different plasma and HVOF guns show good agreement between the two approaches in terms of the absolute values measured and the basic tendencies of variations in spraying parameters. A statistical evaluation of particle size, speed, and temperature is also carried out in order to determine the influence of process parameters on powder jet characteristics. Paper includes a German-language abstract.
High Energy Ball Milling Prepared Al2O3-NiCr Dispersion Powders for Thermal Spray Coatings
Authors: Lugscheider E. , Fischer A. , Parco M. , Zhang H. 
Published: October 2022

Abstract
This work concerns the production and use of aluminum oxide-NiCr dispersion powders for thermal spraying. It investigates the morphology and hardness of the powders and the microstructure and wear resistance of the resulting coatings. The powders are prepared by high energy ball milling and are used to produce oxide dispersion strengthened NiCr coatings via HVOF spraying. Among the key findings is that the powders are less homogeneous when milled with nanoscale aluminum oxide as are coating properties. Paper includes a German-language abstract.
An Improved Deposition Process for Very Thick Porous Thermal Barrier Coatings
Authors: Gualco G.C. , Cordano E. , Fignino F. , Gambaro C. , Ahmaniemi S. , Tuurna S. , Mäntylä T. , Vuoristo P. 
Published: October 2022

Abstract
This paper discusses the development of a two-layer thermal barrier coating that reduces heat flow to the lowest allowable level based on the temperature limits of the materials involved. The thick, porous coating was sprayed using a modified plasma torch and then thermally cycled until failure. Test results show that the process used to apply the bond coat has a measurable effect on the performance of the thermal barrier coatings. In addition to zirconia powders, a low cost polymer powder was used as well. Paper includes a German-language abstract.
Plasma-Spray Deposition of Silicon Nitride-Based Coatings
Authors: Gawne D.T. , Bao Y. , Zhang T. 
Published: October 2022

Abstract
In this paper, a quantitative model of the viscous behavior of two-phase particles hitting a substrate is used to optimize a plasma spraying process for silicon-nitride composite layers. The model is derived from the observed behavior of Si3N4-YAS (Y2O3-Al2O3-SiO2) layers and provides a basis for further study of ceramic-matrix composite layers. Paper includes a German-language abstract.
Evaluation of Starting Material and Process Parameters for HVOF WC-10Co-4Cr Coatings
Authors: Legoux J.-G. , Bouaricha S. 
Published: October 2022

Abstract
HVOF-sprayed tungsten carbide coatings are materials of choice to replace electrolytic hard chrome in corrosion and wear environments. This paper evaluates different WC-10Co-4Cr powders for HVOF spraying using propylene as combustion gas. Five commercially available powders are applied using various process parameters. The results show that the choice of powder has the greatest influence on layer quality. Paper includes a German-language abstract.
Controlling the Degradation Phenomena During HVOF Spraying of WC-10Co-4Cr Cermet
Authors: Bouaricha S. , Legoux J.-G. 
Published: October 2022

Abstract
This paper evaluates the effect of adding graphite and amorphous carbon to WC-10Co-4Cr powders during HVOF spraying. The carbon-based materials are added in order to protect the WC phase from decarburization during the spraying process. The powders were made by ball milling and spray drying and the resulting layers are characterized by means of SEM, X-ray diffraction, microhardness, and wear testing. Paper includes a German-language abstract.
Vacuum Plasma Sprayed Coatings and Freestanding Parts of Ni-Ti Shape Memory Alloys
Authors: Halter K. , Siegmann S. , Wielage B. 
Published: October 2022

Abstract
In this investigation, gas atomized powders derived from Ni-Ti wires are vacuum plasma sprayed, producing free-standing coatings with different geometries and wall thicknesses. XRD measurements show that the dominant phases associated with the shape-memory effect and superelasticity remain during powder and coating production, although a problem with brittleness in uncured samples makes tensile test results unusable. Paper includes a German-language abstract.