bluuebunny/crossref_metadata_2025_split huggingface dataset:
Histological identification of physiological changes in vascular cells morphology in the crown of winter barley (Hordeum vulgare L.) during freezing
Authors: Mishra Gayatri 
Published: March 2024

Abstract
Freezing resistant organs in cereal crops can withstand and recover from injuries caused by freezing stresses. To understand the physiological mechanisms of freezing stress survival in winter cereals, a histological analysis of crown was performed on winter barley, that had been frozen and recovered. Freezing injuries in all four zones of the crown were classified as voids and tissue separation caused by ice formation, vessels partially or completely plugged with unknown darkly stained substances. An irregular semi-circular purple zone was recognized in lower crown, zone 1. Tissue necrosis was observed in the innermost leaves in the apical regions of the crown, zone 3 and 4. Different types of cell wall explosions in vessels were characterized in zone 3 and 4. Bordered pits appeared as smaller cell walls within xylem vessels in all the crown zones which may have prevented propagation of ice in the vessels. The study showed that freezing began at the basal region and spread upwards towards the apical region of crown. The results suggest that conventional microscopy can be used for characterizing physiological changes in cereal crops recovering from freezing.
Methylation of the CpG at -299 bp from transcription start site of interleukin-1β is a sustained marker of inflammation exerted by TNFa on bone marrow-derived mesenchymal cells of healthy humans
Authors: Vladimirovich Karpenko Dmitriy 
Published: March 2024

Abstract
Background
The role of bone marrow mesenchymal cells is demonstrated both in normal conditions and in various pathologies of the hematopoietic system. The regulatory functions of mesenchymal cells are so significant that they themselves and their secretome or extracellular vesicles are used for the treatment and prevention of immune complications during transplantation and in other aspects of regenerative medicine. As shown earlier, interleukin-1β (IL1B) is an important factor regulating the activity of the bone marrow stroma.
Methods
Methylation profile of IL1B promoter and IL1B expression were measured in cultured mesenchymal cells obtained from the bone marrow of healthy donors. IL1B expression was also measured upon different inflammatory stimuli including tumor necrosis factor-α (TNF).
Results
For healthy donor mesenchymal cells, we observed differences in IL1Bpromoter methylation profile at the position of one CpG at -299 bp from transcription start site, which is a part of or in immediate proximity to binding sites of NF-kB transcription factors. The study establishes a link among TNF exposure, the CpG methylation, and IL1B expression during and after exposure.
Conclusion
Since TNF is a pro-inflammatory factor that is associated with damage and aging, it is concluded that for healthy donor mesenchymal cells, the observed differences in IL1B promoter methylation profile may be a long-term imprint of inflammatory processes previously sustained by a person, as well as a marker of physiological differences in the human bone marrow stroma.
Crystallographic insights into monovalent thallium incorporation: Exploring hydropyrochlore structure for environmental remediation
Authors: Taddei Alice , Bindi Luca , Lepore Giovanni O. , Skogby Henrik , Bonazzi Paola 
Published: March 2024

Abstract
Hydropyrochlore, ideally (H2O,☐)2Nb2(O,OH)6(H2O), is a cubic mineral (space group Fd3m, a = 10.56–10.59 Å, Z = 8) belonging to the pyrochlore supergroup (general formula: A2–mB2X6–wY1–n). The K-rich variety of this species is unique to the Lueshe syenitic-carbonatitic deposit (D.R. Congo), where it occurs as the alteration product of primary (Ca,Na)2Nb2O6F pyrochlores. The structure of this mineral is made of a B2X6 (B = Nb, Ti; X = O, OH) framework that generates tunnels along the [110] direction, where the interstitial sites are partially occupied by water molecules and minor amounts of different cations. These features form the basis for the ion-exchange properties of hydropyrochlore, making it a promising candidate as a mineral sink for heavy metals (e.g., Tl+) dispersed in aqueous matrices, with interesting environmental implications.
Tl+ incorporation was induced through imbibition experiments in a diluted Clerici solution using single crystals of hydropyrochlore from Lueshe (D.R. Congo); the modifications induced by Tl+ incorporation were then evaluated using single-crystal X-ray diffraction (SCXRD), electron microprobe analyses (EMPA), and Fourier transform infrared (FTIR) spectroscopy.
After Tl+ imbibition, a dramatic increase of the A-site electron density (n.e– from ~4 to ~60) confirms the entry of a substantial amount of Tl+ at this site (up to about 70%), leading to a lengthening of the A-X distances and the consequent expansion of the unit cell. A decrease of the site scattering at the Y′ site (from ~9 to ~4 e–) also occurs, suggesting a loss of aqueous species. Although the predominance of neutral H2O molecules at the interstitial sites of hydropyrochlore from Lueshe is widely accepted by the mineralogical community, our crystal-chemical and FTIR data provide evidence that the dominant species might be the hydronium ion, with significant implications on the nomenclature of the pyrochlore supergroup.
Understanding the crystallographic aspects of hydropyrochlore as a potential waste form for monovalent thallium immobilization not only addresses a pressing environmental concern but also contributes to the broader field of waste management.
Pengaruh Penambahan Tepung Buah Karamunting (Rhodomyrtus tomentosa) terhadap Daya Terima, Total Serat Pangan, dan Kalium pada Biskuit
Authors: Kurniati Wenny Dwi , Pratiwi Pratiwi , Darmuin Darmuin 
Published: March 2024

This study aims to determine the organoleptic test results of Rhodomyrtus tementosa biscuits, total dietary fiber, and potassium. This research is a laboratory experimental research with a one-factorial RAL (Completely Randomized Design) design, namely the addition of Rhodomyrtus tementosa flour. There were four treatments with two repetitions of laboratory tests and one organoleptic test. The results of the organoleptic test analysis of biscuits with the addition of Rhodomyrtus tementosa flour showed that the preference parameters for color, texture, aroma and taste decreased with the addition of more Rhodomyrtus tementosa. The biscuit results from the selected formulation were P1 biscuits (3.73) with the addition of 25% Rhodomyrtus tementosa flour. Based on the results of the total dietary fiber and potassium test, it was found that there was an increase in the levels of total dietary fiber (17.69%) and potassium (157.73%) in Rhodomyrtus tementosa biscuits (P1) compared to the control (P0). Biscuits with the addition of Rhodomyrtus tementosa flour could be an alternative food product that is high in dietary fiber and high in potassium. Penelitian ini bertujuan untuk mengetahui hasil uji organoleptik dari biskuit karamunting terpilih, total serat pangan dan kalium. Penelitian ini merupakan penelitian eksperimen laboratorium dengan rancangan RAL (Rancangan Acak Lengkap) satu faktorial yaitu penambahan tepung buah karamunting. Terdapat empat perlakuan dengan dua kali pengulangan uji laboratorium dan satu kali uji organoleptik. Hasil analisis uji organoleptik dari biskuit dengan penambahan buah karamunting dari parameter kesukaan warna, tekstur, aroma dan rasa semakin menurun dengan semakin banyak penambahan buah karamunting. Hasil biskuit dari formulasi terpilih yaitu biskuit P1 (3,73) dengan penambahan tepung buah karamunting sebanyak 25%. Berdasarkan hasil uji total serat pangan dan kalium didapatkan hasil bahwa terjadi peningkatan kadar total serat pangan (17,69%) dan kalium (157,73%) pada biskuit karamunting (P1) dibandingkan dengan kontrol (P0). Biskuit dengan penambahan tepung buah karamunting dapat menjadi alternatif produk pangan yang tinggi serat pangan dan tinggi kalium.
Menstrual hygiene management in the remote rural highlands of eastern Indonesia
Authors: Assa Inriyanti , Bouway Dolfinus Y. , Innah Herbert , Asmuruf Frans , Bowaire Anike , Yufuai Agustina , Hukubun Maria , Sawias Olivia , Ratnasariani Widyawati , Daniel D. 
Published: March 2024

Abstract

Menstrual Hygiene Management (MHM) is essential for women's health, but it is often regarded as a taboo topic. This study investigates the practice of MHM in rural and remote Indonesian highlands. A cross-sectional study was conducted among 492 adolescent girls and adult women in the Jayawijaya and Central Mamberamo Districts of Papua Province. Principal component analysis and multiple regression analyses were used to examine the relationships among the respondents' knowledge, attitudes, and MHM practices. The perception that discussing MHM is taboo exists in this area, and certain cultural rituals are associated with a young girl's first period. The respondents have moderate knowledge and attitudes regarding MHM. Furthermore, their practices after using sanitary pads are unhygienic, may increase the risk of reproductive tract infections, and may pollute the environment. Some variables are positively associated with appropriate MHM practice, namely knowledge of MHM, the perception that menstruation must be kept private, and the importance of using sanitary pads. Finally, the results show that schools do not provide a supportive environment for girls during their period. Overall, there is a need to increase MHM knowledge and foster positive attitudes to enhance healthy MHM among women in the rural and remote highlands of Indonesia.
A Synthesized Model for Applying Stress Management and Biofeedback Interventions in Research Utilization: A Systematic Review and Meta-analysis
Authors: Ruchiwit Manyat , Vuthiarpa Sararud , Ruchiwit Kampol , Muijeen Kasorn , Phanphairoj Kanjanee 
Published: March 2024

Background
Stress management and biofeedback interventions have been shown to be effective in improving mental and physical health outcomes. However, previous research studies and synthesized models for applying these interventions in research utilization are insufficient.

Objective
This study aimed to synthesize a model for applying stress management and biofeedback interventions in research utilization.

Methods
A systematic review and meta-analysis were conducted according to the PRISMA guidelines.
Multiple studies were used to assess the effectiveness of applying stress management and biofeedback interventions published from 2017 to 2023. The process included identifying the research questions, conducting a comprehensive literature search, assessing study quality, extracting data, synthesizing the data, analyzing and interpreting the findings, drawing conclusions, and making recommendations.

Results
The results indicated a significant mean effect size without evidence of publication bias. The effect sizes of the subgroups among the study variables were not significantly different [Q = 4.02, p = .26]. However, there were significant differences regarding the mean effect sizes among the studies [Q = 63.59, p < .001] and also in terms of the test of subgroups among the participants [Q = 8.49, p = .04].

Conclusion
The results emphasize the importance of evidence-based practice and highlight the need for ongoing evaluation and refinement of interventions. The proposed model was supported by related theories and research studies in order to ensure the robustness and reliability to guide practice and future research in the field of biofeedback interventions. By following this model, researchers and practitioners can ensure that stress management and biofeedback interventions are evidence-based and are effective in improving mental and physical health outcomes.
Comparison of Carbon Footprint, Environment Impact, Efficacy and Benefit–Cost Ratio of Insecticide Resistance Management with Conventional Methods used by Thai Chinese Cabbage Farmers
Authors: Sampaothong Sonthaya , Punyawattoe Pruetthichat 
Published: March 2024

Aim
To evaluate and compare the carbon footprint, efficacy, and benefit-cost ratios of Chinese cabbage grown via insecticide resistance management with two farming methods used by Thai farmers.

Background
Insecticide usage is currently being reduced by the employment of sustainable products and the promotion of environmentally friendly methods, thereby increasing the income of Chinese cabbage farmers in Thailand.

Methods
This study aims to evaluate the control of insect pests and marketable produce in Chinese cabbage using various methods. Pests were counted every five days, and the marketable produce was evaluated. Greenhouse gas emissions and environmental impact were estimated using methodologies such as the environmental impact quotient, with the pesticide usage costs and benefit-cost ratios recorded.

Results
The study compared two farming methods with insecticide resistance management, revealing that in the growing of Chinese cabbage, the latter exhibited lower emissions per acre and kg. However, the environmental impact was higher in methods 1 and 2 due to the increased spray application involved. The insecticide resistance management method was found to effectively control pests and produce marketable produce with less total investment and labour expenses.

Conclusion
The study analysed the impact of farming practices and pesticide resistance management strategies on the environment and carbon emissions. The results showed that insecticide resistance management is more effective in reducing carbon emissions and positively impacting the environment while also providing a better benefit-cost ratio. However, the study suggests that education and continuous monitoring are required for effective resistance management. The findings also emphasise the need for adaptation to changing pests and the consideration of external factors such as market demand, climate change, and government policies to ensure long-term sustainability.
ORIENTASI DUNIA KERJA DALAM PROSES DAN STATUS AKREDITASI SMK
Authors: Sukamto Sukamto 
Published: March 2024

Abstrak Problematika kesenjangan antara dunia pendidikan dan kebutuhan duania kerja mempunyai dimensi yang sangat majemuk. Pertimbangan untuk mengambil kebijakan tentang prioritas pengembangan berbagai jenis dan jenjang pendidikan, system pemantauan dan evaluasi kinerja sekolah, dan indicator baku mutu yang responsive terhadap kebutuhan dunia usaha dan industry merupakan factor-faktor yang diyakini dapat menjembatani kesenjangan tersebut. Tulisan ini mengemukakan kelemahan system akreditasi sederhana berdasarkan nilai siswa yang banyak dipakai untuk menilai keberhasilan sekolah selama ini dan mengulas lebih rinci pedoman akreditasi yang sudah ada. Dengan sedikit tambahan aspek penilaian sekolah,sitem akreditasi ini kalau dilaksanakan dengan cermat dan objektif akan menyumbang secara signifikan usaha untuk menyesuaikan dan mengaitkan keluaran dunia pendidikan dengan kebutuhan dunia usaha dan industry.
peningkatan motivasi dan minat belajar matematika siswa melalui pendekatan kontekstual dalam pembelajaran matematika yang bermakna
Authors: Gazali Rahmita Yuliana , Atsnan Muh. Fajaruddin 
Published: March 2024

Penelitian ini bertujuan untuk meningkatkan motivasi dan minat belajar matematika siswa melalui pendekatan kontekstual dalam pembelajaran matematika yang bermakna. Tujuan lain penelitian ini adalah untuk mengetahui keterlaksanaan pembelajaran dengan pendekatan kontekstual oleh guru matematika kelas VIII di SMP Negeri 7 Banjarmasin dan SMP Negeri 24 Banjarmasin. Penelitian dilaksanakan di kelas VIII B SMP Negeri 7 Banjarmasin dan kelas VIII F SMP Negeri 24 Banjarmasin. Subyek penelitian ini adalah siswa kelas VIII B SMP Negeri 7 Banjarmasin sebanyak 27 orang dan siswa kelas VIII F SMP Negeri 24 Banjarmasin tahun pelajaran 2016/2017 sebanyak 30 orang. Hasil penelitian di kelas VIII B SMP Negeri 7 Banjarmasin menunjukkan bahwa (1) keterlaksanaan pembelajaran pada siklus 1 dan 2 di SMP Negeri 7 Banjarmasin adalah 100%, (2) terjadi peningkatan motivasi dan minat belajar matematika siswa dari pra tindakan ke siklus 1 ke siklus 2. Sedangkan untuk hasil penelitian di kelas VIII F SMP Negeri 24 Banjarmasin menunjukkan bahwa (1) terjadi peningkatan persentase keterlaksanaan pembelajaran pada siklus 1 sebesar 28,7% pada pertemuan 1 dan 100% pada pertemuan 2 ke siklus 2 sebesar 100%; (2) terjadi peningkatan motivasi dan minat belajar matematika siswa dari pra tindakan ke siklus 1 ke siklus 2. Increased Motivation and Interest in Student Mathematics Learning Through Contextual Approach in Meaningful Mathematics Learning AbstractThis study aims to improve students' motivation and interest in learning mathematics through contextual approach in meaningful math learning. Another purpose of this research is to know the implementation of learning with contextual approach by teacher of math class VIII in SMP Negeri 7 Banjarmasin and SMP Negeri 24 Banjarmasin. The research was conducted in class VIII B SMP Negeri 7 Banjarmasin and class VIII F SMP Negeri 24 Banjarmasin. The subjects of this study are students of class VIII B SMP Negeri 7 Banjarmasin as many as 27 people and students of class VIII F SMP Negeri 24 Banjarmasin 2016/2017 lesson year as many as 30 people. The result of research in class VIII B SMP Negeri 7 Banjarmasin shows that (1) learning activity in cycle 1 and 2 in SMP Negeri 7 Banjarmasin is 100%; (2) there is an increase of motivation and interest in learning mathematics from pre-action to cycle 1 to cycle 2. As for the results of research in class VIII F SMP Negeri 24 Banjarmasin shows that (1) there is an increase in the percentage of learning implementation in cycle 1 of 28.7% at 1 and 100% meeting at the second meeting to cycle 2 by 100%; (2) there is an increase in motivation and interest in learning mathematics students from pre-action to cycle 1 to cycle 2.
Pengembangan Multimedia Pembelajaran Matematika SMA untuk Meningkatkan Motivasi dan Prestasi Belajar Matematika Materi Logika Matematika
Authors: Istiqlal Muhammad , Wutsqa Dhoriva Urwatul 
Published: March 2024

Tujuan penelitian ini adalah untuk menghasilkan multimedia pembelajaran matematika yang berkualitas baik dan layak untuk digunakan dalam pembelajaran matematika dan mendeskripsikan seberapa baik kualitas perangkat pembelajaran matematika yang dihasilkan. Kriteria kualitas yang digunakan mengacu pada kriteria Nieveen, yaitu valid, praktis dan efektif. Materi yang dikembangkan adalah materi Logika Matematika. Jenis penelitian ini adalah penelitian pengembangan (Development research). Penelitian ini mengembangkan perangkat pembelajaran matematika dengan menggunakan model pengembangan yang diadaptasi dari model pengembangan Borg Gall. Tahap-tahap yang dilalui sampai diperoleh multimedia pembelajaran matematika yang valid, praktis dan efektif adalah analisis kebutuhan dan perumusan tujuan, desain/pengembangan produk, uji coba, revisi dan kajian produk akhir. Uji coba yang dilakukan meliputi ujicoba ahli/validasi ahli (expert judgement), uji coba kelompok kecil (small group try-out) dan uji coba lapangan (field try-out). Uji coba lapangan (field try-out) dilakukan pada dua kelas X di MA Nurul Ummah. Instrumen penelitian yang digunakan adalah lembar validasi, lembar penilaian guru, lembar penilaian siswa, angket motivasi dan tes hasil belajar. Penelitian ini menghasilkan multimedia pembelajaran matematika yang berkualitas dan layak. Hasil penelitian menunjukkan bahwa multimedia pembelajaran matematika yang dikembangkan valid, praktis dan efektif.Kata Kunci: pengembangan, multimedia pembelajaran, matematika Developing Instructional Multimedia of Mathematics of Senior High School to Improve Motivation and Achievement of Mathematic Learning on the Topic of Mathematics Logical AbstractThis study aims at developing a quality and appropriate instructional multimedia of mathe-matics, and describing its quality. The quality criteria used refer to Nieveen criterion, namely valid, practical, and effective. The developed material is Mathematical Logic. This study is development research that develops the instructional multimedia of mathematics using the development model adapted from Borg Gall Model. The steps to get the valid, practical and effective instructional multimedia of mathematics are: need assessment and the formulation of purpose, product design, try-out, revision and final product review. The try out consists of expert judgement, small group try-out, and field try-out. The Field try-out was held at two year-ten classes of MA Nurul Ummah. The research instruments were validation sheets, teacher assessment sheets, student assessment sheets, motivation sheets, and evaluation sheets. The study produces a quality and appropriate instructional multimedia of mathematics. The result of the study shows that the developed instructional multimedia of mathematics are valid, practical, and effective.Keywords: development, instructional multimedia, mathematics
Keefektifan Metode Pembelajaran Kooperatif Model STAD Ditinjau dari Prestasi dan Motivasi Belajar Siswa di Kelas VIII SMP
Authors: Badrun Badrun , Hartono Hartono 
Published: March 2024

Penelitian ini bertujuan untuk mengungkapkan (1) keefektifan pembelajaran kooperatif model STAD (2) keefektifan pembelajaran konvensional ditinjau dari prestasi dan motivasi belajar siswa, serta (3) perbandingan keefektifan pembelajaran kooperatif model STAD dengan pembelajaran konvensional ditinjau dari peningkatan prestasi dan motivasi belajar siswa. Penelitian ini dilaksanakan di SMP Negeri 4 Gamping, Sleman, Yogyakarta. Populasi penelitian ini adalah 215 siswa kelas VIII semester genap tahun pelajaran 2012/2013. Sampel penelitian ini adalah 36 siswa kelas VIII E sebagai kelompok eksperimen dan 35 siswa kelas VIII C sebagai kelompok kontrol. Data dianalisis dengan uji manova, one sample t-test, dan independent sample t-test. Hasil penelitian menunjukkan bahwa: (1) pembelajaran kooperatif model STAD efektif ditinjau dari prestasi dan motivasi belajar siswa,(2) pembelajaran konvensional tidak efektif ditinjau dari prestasi tetapi efektif ditinjau dari motivasi belajar siswa, dan (3) pembelajaran kooperatif model STAD lebih efektif dibandingkan pembelajaran konvensional ditinjau dari peningkatan prestasi belajar siswa tetapi tidak lebih efektif ditinjau dari peningkatan motivasi belajar.Kata Kunci: STAD, prestasi, motivasi belajar. The Effectiveness of the STAD Type Cooperative Learning Method and Motivation Viewed from Students’ Achievement in Class VIII SMP AbstractThis study aims to describe (1) the effectiveness of cooperative learning model of STAD, (2) the effectiveness of conventional teaching model, and (3) describe the comparison between the effective-ness of cooperative learning model of STAD and the conventional teaching model seen from the performance improvementin terms of students’ achievement and learning motivation. This research was conducted at SMP Negeri 4 Gamping, Sleman, Yogyakarta. The population is 215 year-eight students in their second semester in 2012/2013. A sample of 36 students of class VIII E as an experimental group and 35 students of class VIII C as control group. Data were analyzed using the manova test, one sample t-test, and independent sample t-test. The results show that: (1) the STAD type cooperative learning model effective in terms of students’ achievement and learning motivation, (2) the conventional teaching is not effective in terms of students’ achievement but is effektif in terms of students’ learning motivation, and (3) the STAD type cooperative learning model is more effective than the conventional teaching in terms of improved students’ learning and achievement but it is not more effective in terms of increasing the motivation.Keywords: STAD, achievement, learning motivation.