bluuebunny/crossref_metadata_2025_split huggingface dataset:
Keefektifan Modul Pada Hasil Belajar Mata Pelajaran Membuat Pola Siswa Tata Busana SMK NU Miftahul Falah
Authors: Dewi Anggita Fortuna , Wahyuningsih Sri Endah , Ning Wulidah 
Published: June 2023

KEEFEKTIFAN MODUL PADA HASIL BELAJARMATA PELAJARAN MEMBUAT POLASISWA TATA BUSANA SMK NU MIFTAHUL FALAHAnggita Fortuna Dewi*)a, Sri Endah Wahyuningsih,*)bJurusan Pendidikan Kesejahteraan Keluarga, Fakultas Teknik, Universitas Negeri Semarang, Gedung E7 Kampus Sekaran, Gunungpati, Semarang 50229Email: anggitafortuna27@yahoo.com
Abstrak Penelitian ini bertujuan untuk 1)Mengetahui apakah modul valid dan layak digunakan pada mata pelajaran Membuat Pola 2)Mengetahui berapa besar keefektifan modul terhadap hasil belajar siswa pada mata pelajaran Membuat Pola. Penelitian ini merupakan penelitian R&D (Research And Development) menggunakan One Group Pretest- Posttest Design dengan populasi siswa kelas X Tata Busana dengan jumlah 23 siswa. Sampel penelitian menggunakan sampling jenuh. Metode pengumpulan data menggunakan metode tes, observasi, dokumentasi dan angket. Analisis data penelitian menggunakan uji-t. Besarnya peningkatan hasil belajar dihitung menggunakan Uji Gain Scores diperoleh 0,43 atau 43% berkriteria sedang. Hasil penelitian berdasarkan uji-t diperoleh thitung= 12,81 > ttabel=2,040 maka hipotesis diterima. Kesimpulan yang diperoleh yaitu terdapat peningkatan hasil belajar siswa mata pelajaran Membuat Pola menggunakan modul. Kata Kunci : Modul, Hasil Belajar, Membuat Pola
AbstractThis study aims to 1) Find out if module is valid and worthy to use the subject of Pattern Making. 2) Know how big is the effectiveness of the use of module againts the result of the study on Pattern Making subjects. This research is a R&D (Research and Development) using One Group Pretest- Posttest Design with population the students class X Fashion with a total of 23 students.The sampling using total sampling. Method of collecting data using tests method, observasion, documentation, and question form. The analysis of research data using t-test. The magnitude of the increase in the result of the study were calculated using the Gain Scores test obtained 0.43 or 43% with moderate criteria. Result of research based on t-test is obtained tc=12,81>ttable=2,040 thus hypothesis accepted. The conclusion obtained is that there is an increase in learning outcomes using the module on Pattern Making subject.Keyword: The module, Learning Outcomes, Pattern Making
*)aAlumni Mahasiswa Jurusan Pendidikan Kesejahteraan Keluarga, Fakultas Teknik, UNNES *)bStaff Pengajar Jurusan Pendidikan Kesejahteraan Keluarga, Fakultas Teknik, UNNES
PERBEDAAN HASIL PENCELUPAN BATIK MENGGUNAKAN BONGGOL PISANG DENGAN MORDAN TUNJUNG, KAPUR DAN JERUK NIPIS
Authors: Kartika Feny Fitri , Krisnawati Maria , Aulia Sofwah 
Published: June 2023

Abstract. This study aims to determine how the results and differences that arise from the test of fastness, sharpness of motifs and color direction on the immersion results using mordan tunjung, lime, and lime. The research used experimental research method with independent variable (mordan tunjung, lime and lime) and dependent variable (fastness, sharpness of motif and color direction). Data collection techniques used were observation method, documentation method and laboratory test with analysis that is mean analysis on test of fastness and sharpness of motif, then descriptive analysis on color direction test. The results of the fastness test and the sharpness of the best motif on mordan lime. The results of the color direction test show pecan on mordan tunjung, cinnamon on mordan lime, and caramel on mordan lime. The conclusion of this research is banana hump can be used as batik nature dye, and there are differences in the result of batik dyeing using banana bonggol with mordan tunjung, lime, and lime.
Keywords: Banana Stalk, Tunjung, Lime, Lime, Mordan
Abstrak. Penelitian ini bertujuan untuk mengetahui bagaimana hasil dan perbedaan yang muncul dari uji ketahanan luntur, ketajaman motif dan arah warna pada hasil pencelupan menggunakan mordan tunjung, kapur, dan jeruk nipis. Penelitian menggunakan metode penelitian eksperimen dengan variabel bebas (mordan tunjung, kapur dan jeruk nipis) dan variabel terikat (ketahanan luntur, ketajaman motif dan arah warna). Teknik pengumpulan data yang digunakan yaitu metode observasi, metode dokumentasi dan uji laboratorium dengan analisis yaitu analisis rerata (mean) pada uji ketahanan luntur dan ketajaman motif, kemudian analisis deskriptif pada uji arah warna. Hasil uji ketahanan luntur dan ketajaman motif paling baik pada mordan kapur. Hasil uji arah warna menunjukkan pecan pada mordan tunjung, cinnamon pada mordan kapur, dan caramel pada mordan jeruk nipis. Simpulan penelitian ini adalah bonggol pisang dapat digunakan sebagai pewarna alam batik, dan terdapat perbedaan pada hasil pencelupan batik menggunakan bonggol pisang dengan mordan tunjung, kapur, dan jeruk nipis.
Kata Kunci: Bonggol Pisang, Tunjung, Kapur, Jeruk Nipis, Mordan
PENGGUNAAN ZAT PEWARNA ALAMI DARI BENALU POHON PETAI SEBAGAI ALTERNATIF PEWARNA BATIK
Authors: Sani Diyan Satwika , Kusumastuti Adhi , Sagita Amelia 
Published: June 2023

Abstract. The research done by experimental research method with independent variable (mordan alum, lime, and tunjung) and dependent variable (color aging, color fastness to washing and staining of white cloth). Data collection techniques are used observation method, documentation method, and laboratory test. The analysis is used to descriptiveanalysis on all laboratory test results. The most concentrated color aging test on mordan tunjung. Fade resistance test results against leaching and staining of white fabrics have the same result on every mordan with a value of 3 (enough) for mordan tunjung and a value of 3-4 (good enough) for mordan lime and alum. The conclusion of this research is the parasite petai tree can be used as batik natural dye, for the difference research of dyeing batik clote using parasite petai tree with mordan alum, lime and tunjung.
Keywords: Batik, Parasite Petal Tree, Natural Dyes
Abstrak. Penelitian dilakukan dengan metode penelitian eksperimen dengan variabel bebas (mordan tawas, kapur dan tunjung) dan variabel terikat (ketuaan warna, ketahanan luntur warna terhadap pencucian serta penodaan terhadap kain putih). Teknik pengumpulan data yang digunakan yaitu metode observasi, metode dokumentasi dan uji laboratorium.Analisis yang digunakan yaitu analisis deskriptif pada semua hasil uji laboratorium. Hasil uji ketuaan warna yang paling pekat pada mordan tunjung. Hasil pengujian ketahanan luntur terhadap pencucian dan penodaan terhadap kain putih memiliki hasil yang sama pada setiap mordan dengan nilai 3(cukup) untuk mordan tunjung dan nilai 3-4 (cukup baik) untuk mordan kapur tohor dan tawas. Simpulan penelitian ini adalah benalu pohon petai dapat digunakan sebagai pewana alami batik, terdapat perbedaan hasil pencelupan kain batik menggunakan benalu pohon petai dengan mordan tawas, kapur tohor dan tunjung.
Kata Kunci: Batik, Benalu Pohon Petai, Pewarna Alam
METODE PENCIPTAAN DESAIN KERAJINAN MENGGUNAKAN ADOBE ILLUSTRATOR
Authors: DAMAYANTI SAVIRA 
Published: June 2023

Abstrak. Tujuan penelitian ini adalah untuk mengetahui efektifitas dan hasil dari penciptaan desain kerajinan dengan menggunakan software Adobe Illustrator. Metode penelitian yang digunakan dalam penelitian ini menggunakan metode Research and Development yang hasilnya disajikan secara kualitatif deskriptif, dengan teknik pengumpulan data observasi, wawancara, dan dokumentasi. Dalam penelitian ini langkah-langkah eksperimen yang digunakan dalam penciptaan desain kerajinan mengacu pada teori penciptaan seni yang terdiri dari tiga tahapan utama yaitu eksplorasi, perancangan, dan perwujudan. Visualisasi karya ini diawali dengan membuat outline bentuk kerajinan, yang kemudian ditambahkan detail motif dengan memanfatkan palet warna Ai yang merupakan keunggulan dari Ai, serta mengoptimalkan tampilan dengan tools 3D dengan teknik isometric agar maksimal dalam memberikan kesan yang tampak nyata. Proses penciptaan desain kerajinan menggunakan Adobe Illustrator mampu menghasilkan desain dengan tampilan yang lebih menarik serta mudah untuk dikembangkan menjadi desain yang lebih variatif dan kreatif dengan waktu yang relatif cepat dengan inventaris yang lebih mudah. Karya yang dibuat menggunakan Adobe Illustrator menghasilkan dua karya desain kerajinan yang kemudian diwujudkan pada prototype dan mockup pada ruangan dengan teknik isometric.
Kata Kunci: penciptaan, desain, kerajinan, Adobe Illustrator
KELAYAKAN TAS LIMBAH KARUNG GONI DENGAN APLIKASI BORDIR SUMBER IDE BUNGA NASIONAL
Authors: SALMI IRMA NURUL , WIDOWATI WIDOWATI 
Published: June 2023

Abstrak. Tujuan penelitian ini adalah untuk mengetahui kelayakan tas limbah karung goni dengan aplikasi bordir sumber ide bunga nasional. Desain penelitian yang digunakan adalah desain eksperimen dengan teknik one shot case study. Jumlah populasi yang ada dalam penelitian ini sebanyak 22 panelis. Metode sample yang digunakan adalah sampel jenuh. Teknik pengumpulan data dengan metode observasi dengan alat pengambilan data lembar pengamatan. Analisis data menggunakan deskriptif persentase. Uji kelayakan dilakukan berdasarkan 5 indikator penilaian yaitu desain, bahan baku, teknik/cara pembuatan, daya tahan, kemasan. Hasil dari uji kelayakan menunjukan total persentase sebanyak 92,47% yang dikategorikan sangat layak. Dengan demikian dapat disimpulkan bahwa limbah karung goni sangat layak untuk diolah kembali menjadi produk tas.
Kata Kunci: bordir, bunga nasional, karung goni, limbah, tas
Thermal Behavior and Kinetic of Degradation of PVA and PVA/CS/AL Blend
Authors: Wulandari Retno , Swasono Yogi Angga , Ichsan Muchamad Zain Nur , Rifathin Annisa 
Published: June 2023

Studying thermal behavior, especially regarding the kinetics of the degradation of materials has attracted attention in this recent years because it can provide information about the stability of materials in various conditions and how the mechanism of material degradation. In this research, the thermal behavior and kinetics of thermal degradation of polyvinyl alcohol (PVA) and polyvinyl alcohol (PVA)/cassava starch (CS)/alkaline lignin (AL) with glycerol as a plasticizer were investigated and compared by the thermogravimetric analyzer. The test was carried out for samples under non-isothermal conditions in nitrogen at a single heating rate of 10 °C/min. The activation energies were calculated using Coats-Redfern, Broido, and Horowitz-Metzger methods. The results showed that PVA/0 and PVA/CS/AL had four decomposition steps with the main degradation of PVA/0 and PVA/CS/AL in the second and third decomposition steps. The first degradation of PVA/0 and PVA/CS/AL occurred at 125 °C - 270 °C with a decomposed mass of 35.94%, and 135 °C – 250 °C with a decomposed mass of 31.84%, respectively. The second degradation of PVA/0 and PVA/CS/AL was at 270 °C - 385 °C with a decomposed mass of 40.33% and 250 °C – 395 °C with a decomposed mass of 38.62%. The values of activation energies using Coats-Redfern, Broido, and Horowitz Metger methods of PVA/0 were 57.08 KJ/mol, 64.82 KJ/mol, and 70.57 KJ/mol, respectively. The values of activation energies using Coats-Redfern, Broido, and Horowitz Metger methods of PVA/CS/AL were 74.49 KJ/mol, 82.17 KJ/mol, and 95.65 KJ/mol, respectively. The lower activation energy indicates that degradation reactions occur more easily. PVA/CS/AL has slightly better thermal stability than PVA/0.
Problematic use of the internet among adolescents: A four-wave longitudinal study of trajectories, predictors and outcomes
Authors: Geng Xiaomin , Zhang Jialin , Liu Yang , Xu Linxuan , Han Yue , Potenza Marc N. , Zhang Jintao 
Published: June 2023

AbstractBackground and aimsProblematic use of the internet (PUI) among adolescents has become one of the public problems around the world. Understanding the developmental trajectory of PUI may be beneficial to develop prevention and intervention. The current study aimed to identify the developmental trajectories of PUI among adolescents, considering individual differences over time. And also explored how familial factors contributed to the identified trajectories, and the relationship between PUI changes over time and social, mental health, and academic functioning.MethodsA total of 1,149 adolescents (Mage = 15.82, SD = 0.61; 55.27% girls at Wave 1) participated in assessments at four time points, using 6-month assessment intervals.ResultsBased on a latent class growth model, three trajectories of PUI were identified: Low Decreasing, Moderate Increasing, and High Increasing groups. Multivariate logistic regression analyses suggested that inter-parental conflicts and childhood maltreatment served as negative familial predictors for the risk trajectories of PUI (i.e., Moderate Increasing and High Increasing groups). Additionally, adolescents in these two groups displayed more estranged interpersonal relationships, more mental health difficulties, and poorer academic functioning.Discussion and conclusionsIt is important to consider individual differences in understanding the developmental patterns of PUI among adolescents. Identifying family predictors and the behavioral outcome associated with groups with different developmental trajectories of PUI, which may help to understand better risk factors related to specific developmental patterns of PUI and its adverse correlates. The findings highlight a need to develop more specific effective intervention programs for individuals displaying different problematic developmental trajectories with PUI.
O acervo da Comissão de Anistia e a tortura durante a ditadura militar no Brasil
Authors: Frisso Giovanna Maria 
Published: June 2023

Este artigo busca tematizar alguns dos desafios encontrados durante a realização de pesquisa sobre a tortura nos requerimentos submetidos à Comissão de Anistia. Para tanto, a primeira parte do artigo situa a análise do acervo da Comissão de Anistia em uma discussão mais ampla sobre utilização de documentos oficiais, em particular, processos judiciais, como fonte primária de pesquisa sobre graves violações de direitos humanos. Em seguida, algumas particularidades dos processos da Comissão de Anistia são abordados, permitindo-nos refletir sobre o potencial desse material para a compreensão do período da ditadura militar. Essas particularidades são, posteriormente, relacionadas à compreensão da tortura como violação de direitos humanos, trazendo à tona alguns dos desafios apresentados pela articulação de experiências traumáticas em documentos oficiais.
Review on Mechanism, Prediction, and Remediation of Salt Deposition in Gas Production Wells
Authors: Wang Duocai , Ren Zhongxin , Li Haichuan , Jiang Ping , Wang Jian , Zhu Yanwei , Zhu Ziheng 
Published: June 2023

Abstract
During the gas production process, the evaporation of formation water leads to an increase in the water content of the gas and increases the salinity of the remaining formation water. Salt deposition generally occurs near the wellbore and in the wellbore. When the wellbore is clogged with salt deposition, it will lead to a rapid decrease in gas well pressure and production. This work analyzes the effects of formation water evaporation, temperature, and pressure on salt deposition in gas wellbore. And the salt deposition mechanism in the wellbore was summarized. This work presented a technical review on the salt deposition prediction in the gas wellbore. Finally, this work summarizes three different techniques for salt deposition remediation in gas wells, including cold-water removal, hot-water washing, and chemical salt prevention. This work can provide a reference for salt deposition prevention and remediation in the underground gas storage.
Morphology and Composition Changes in Fluid Inclusions from Quartz under Progressive Deformation: Case Study of a Vein System in the Western Kelyan-Irokinda Fold Zone (Western Transbaikalia)
Authors: Kungulova E.N. , Tishin P.A. , Lychagin D.V. , Tomilenko A.A. , Moskvichev E.N. 
Published: June 2023

Abstract—The behavior of fluids during plastic deformation is studied from the morphology and distribution of fluid inclusions in quartz grains of different microstructure types from a vein system controlled by thrusting and strike-slip faulting in the eastern Sayan–Baikal fold area. The analytical work includes electron backscatter diffraction (EBSD) for quartz microstructure and crystallography, as well as Linkam heating-and-freezing analysis and Raman spectroscopy for the composition of fluid inclusions. The studied fluid inclusions are of seven types that differ in morphology and position in the deformed quartz structure. A model is suggested to describe successive structural changes of quartz aggregates during dislocation sliding and subsequent creep-related recrystallization associated with redistribution of fluid. Fluid inclusions undergo qualitative and quantitative changes due to water leakage at all stages of plastic deformation. The changes occur by two main mechanisms: (i) mass transfer during dislocation sliding at medium temperatures and strain rates and (ii) diffusion creep at low strain rates and high temperatures. The contribution of creep increases gradually with temperature, which maintains the interaction of inclusions with migrating grain boundaries.
WITHDRAWN: Evaluation of Micro Hardness and Wear characteristics of Gyroid designed Ti-6Al-4V fabricated through DMLS technique.
Authors: Devaraj Daniel , Vijayaraghavan Srinivasan , Senthil Selvabharathi 
Published: June 2023

Abstract
This work evaluates the wear characteristics of Direct Metal Laser Sintered Ti6Al4V (DMLS-Ti6Al4V) for orthopaedic implant biomedical application. The wear samples were printed by Additive Manufacturing method with optimized input process parameters with TPMS (Triply Periodic Minimal Surface) Gyroid structures. Wear tests using pin-on-disc tribometer was used to assess the Gyroid Ti-6Al-4V wear samples for various loads and sliding velocity. It is found that Gyroid Ti-6Al-4V samples posses more wear resistance than as cast Ti-6Al-4V. The coefficient of friction of Gyroid Ti-6Al-4V ranged between 0.26 and 0.34 and had a consistent mean value of 0.27– 0.33. The micro hardness test results depicted clearly that, the Gyroid Ti-6Al-4V alloy posses’ micro hardness of 408 HV in comparison with as cast Ti-6Al-4V alloys’ hardness of 358 HV. The morphological characteristics of the worn-out samples were investigated using scanning electron microscope. At higher sliding conditions occurrence of large friction events lead to higher wear rates and the periodic localised fracture of transfer layer. At low sliding conditions, the Gyroid Ti-6Al-4V samples experienced ploughing, peeling off, plastic deformation types of wear mechanism.
Psychometric validation of the Danish version of the Major Depression Inventory using data from the Lolland-Falster Health Study (LOFUS)
Authors: Christensen Karl Bang , Packness Aake , Simonsen Erik , Brodersen John 
Published: June 2023

Abstract
Purpose: The Major Depression Inventory (MDI) is a widely used self-rating depression scale commonly in primary care in Denmark. It has not been subject to robust psychometric validation in a general population setting. The aim of this study was to evaluate the psychometric measurement properties of the MDI when applied in the general population.
Methods: We evaluated statistical psychometric validity using modern test theory (confirmatory factor analysis, item response theory models and Rasch measurement theory) testing local independence and differential item function across groups defined by gender, age, education, and chronic disease status. Separate analyses across different strata and across different statistical models were employed.
Results: Regarding structural validity we consistently identified local dependence for the item two pairs (MDI2,MDI3) and (MDI4,MDI5) across strata. This result was confirmed by bifactor CFA models and item screening. We further identified substantial differential item functioning with respect to age group and with respect to chronic disease. We identified quantified the magnitude of this lack of measurement invariance.
Conclusion: The MDI is psychometrically valid in homogenous sub populations, but the disclosed evidence of local dependence means that published estimates of its reliability cannot be trusted. The lack of measurement invariance means that the instrument cannot be used to compare individuals or groups unless they are similar in terms of age group and chronic disease status.
Evaluating the utility of quantitative pupillometry in a neuro-critical care setting for the monitoring of intracranial pressure: a prospective cohort study
Authors: Ali Ahmad M. S. , Gul Wisha , Sen Jon , Hewitt Sarah-Jane , Olubajo Farouk , McMahon Catherine 
Published: June 2023

Abstract
Introduction: Assessment of the pupillary light reflex (PLR) is a key part of intensive care monitoring of neurosurgical patients, particularly for detecting abnormalities in intracranial pressure (ICP). Quantitative pupillometry using a handheld pupillometer is a reliable method for assessing the PLR. However, many variables are derived from such devices. We therefore aimed to assess the performance of these variables at monitoring ICP. Methods: Sedated patients admitted to a neurocritical care unit in a tertiary neurosurgical centre with invasive ICP monitoring were eligible for inclusion. Hourly measurement of ICP, subjective pupillometry (SP) using a pen torch device, and quantitative pupillometry (QP) using a handheld NeuroOptics NPi-200 Pupillometer system were performed. Results: 561 paired ICP, SP and QP pupillary observations from nine patients were obtained, amounting to 1122 pupillary observations in total. SP and QP had a moderate concordance for measuring pupillary size (κ = 0.62). SP performed poorly at detecting changes in pupillary size (sensitivity = 24%). In 40 (3.6%) observations, SP failed to detect a pupillary response whereas QP did. Moderate correlations against ICP were detected for maximum constriction velocity (MCV), dilation velocity (DV), and percentage change in pupillary diameter (%C). Discriminatory ability at an ICP threshold of > 22mmHg was moderate for MCV (AUC = 0.631), DV (AUC = 0.616), %C (AUC = 0.602), and pupillary maximum size (AUC = 0.625). MCV and %C values were significantly different at different ICP thresholds on ANOVA testing. Conclusion: QP is superior to SP at monitoring pupillary reactivity and changes to pupillary size. Although effect sizes were moderate to weak across assessed variables, our data indicates MCV and %C as the most sensitive variables for monitoring ICP. Further study is required to validate these findings and to establish normal range cut-offs for clinical use.