bluuebunny/crossref_metadata_2025_split huggingface dataset:
A retrospective clinical study in Graves disease with COVID-19 infection in China
Authors: Zhang Yihan , Feng Xiaoyun , Li Bingxin , Gong Yuwei , Huang Yunhong , Gu Mingyu , Sun Haiyan , Ren Wenqian , Zhen Qin , Shen Tingting , Fan Tingting , Qin Qin , Liu Fang , Wang Yufan , Peng Yongde , Xu Huanbai 
Published: March 2024

Abstract
Background
Corona Virus Disease 2019 (COVID-19) is the most prevalent global pandemic in recent times. Graves disease (GD), an autoimmune thyroid disease, is a clinical syndrome caused by excessive thyroid hormones. Our study is to understand the current epidemiological situation of COVID-19 infection in GD patients, and to analyze whether COVID-19 will affect the thyroid function, thyroid autoantibody and metabolism of GD patients.
Methods
109 GD patients were followed by Shanghai General Hospital Thyroid Disease Center (TDC) from November 2022 to June 2023. There were three groups defined, i.e., pre, one-month after and three months after infection with COVID-19. SPSS was used to analyze the recruited data.
Results
109 GD patients are infected with COVID-19 (72.48%), uncontrolled GD patients with high FT3 had a higher COVID-19 infection rate (79.31%). As for thyroid function in 35 GD patients with antithyroid drug (ATD) maintenance stage, there were significant differences in FT3, FT4, TT3 and TT4 before and after being infected with COVID-19. What’s more, there’s a significant difference between GD patients in one month and three months after COVID-19 infection of high TSAb group (p = 0.048) but no significant difference between pre and one month. What’s more, there were significant differences in TT3, TT4 of GD patients after infected COVID-19 in non. And Phosphorus (P), 25-hydroxyvitamin D (25-OH-D3), Procollagen type 1 N-terminal propeptide (P1NP) in GD patients were be affected by COVID-19 infection.
Conclusion
GD patients with uncontrolled thyroid function group are susceptible to COVID-19. COVID-19 may affect the thyroid function of GD in TT3, TT4, TSAb high level group infection. COVID-19 vaccine is conducive to the stability of GD patients' condition. And COVID-19 may affect the bone metabolism in GD patients before and after COVID-19 infection. But there is no effect on glucose metabolism or lipid metabolism.
Interspecific Eavesdropping on Chemical Communication in the Field between Taif Pomegranate, Aphis punicae, Enemies, and Protectors
Authors: M’sakni Nour Houda , Alsufyani Taghreed , Alotaibi Noura J. , Almalki Mona A. , Alghamdi Eman M. 
Published: March 2024

Abstract
The demand for alternative pesticides for agricultural crops is becoming a public health requirement. In nature, volatile organic compounds (VOCs) play a major role in influencing the qua-trophic relationship between plants, pests, protectors, and predators. By utilizing an ecological approach, these substances can be utilized as a powerful crop biocontrol tool for integrated pest management (IPM) against Aphis punicae, the green pomegranate aphid. This study involved collecting VOCs from aphid-infested pomegranates (AIP) in the presence of protectors and predators in the field for the first time in Taif Governorate to implement IPM. Using headspace open-loop stripping and gas chromatography-mass spectrometry analysis, 30 VOCs were identified from four ecological interactions between AIP, ants, and ladybirds. The VOC profile of AIP indicates that it is experiencing early injury due to low β-farnesene, methyl salicylate, and high caryophyllene. Principal component analysis, cluster analysis, and heatmap were used to identify the key volatile compounds in the field from the four systems studied and demonstrate the variability of the volatile compounds among different insects and host plants. Seven volatile compounds, including 1-methyl-3-tert-butylbenzene, m-ethylcumene, 3-carene, (+)-4-carene, 2,2,4-trimethyl-pentane, and caryophyllene, were detected in the ecological interaction of AIP. The primary ant pheromone compound, 4-heptanone, becomes effective in repelling aphids after 24 hours when ants and ladybirds are present. In 48 hours, a complex pattern was observed consisting of 1-ethyl-3-methylbenzene, 1,3,5-trimethylbenzene, and 1-methyl-1H-imidazole, which was identified as a key factor in repelling aphids. The same ecological system showed that methyl salicylate, sabinene, limonene, pentadecane, and heptadecane were found to attract predators. The composition and quantity of VOCs emitted can cause varying responses. This study serves as a basis for future quantitative studies that can determine the concentration of each volatile compound that is essential for the biological control of A. punicae.
Preparation and Characterization of Carboxymethyl Microcrystalline Cellulose from Pineapple Leaf Fibre
Authors: Fouad Hassan , Jawaid Mohammad , Karim Zoheb , Meraj Aatikah , Abu-Jda Basim , Nasef Mohamed Mahmoud , Sarmin Siti Noorbaini 
Published: March 2024

Abstract

Highly functional and robust biobased materials are still in research to produce valuable bio-composites. In the present research, microcrystalline cellulose (MCC) was obtained through an agricultural waste, pineapple leaf fiber (PL) and further functionalized using upscaled chemical approach to carboxymethyl microcrystalline cellulose (CMMMC). To derive CMMCC from PL fiber, monochloroacetic acid, sodium hydroxide, and ethanol were used as solvents in an etherification procedure. FTIR, TGA, SEM, EDX, XRD, and DSC served to characterize the raw material, high crystalline MCC, and modified carboxy methyl MCC. FTIR analysis determined the presence of a different absorbed peak at approximately 1620.2 cm-1, and at 1423.8 cm-1, carboxyl groups were assigned to CMMCC. On the other hand, the XRD findings verified that CMMCC's crystalline structure has decreased. Analysis by SEM revealed a damaged surface morphology for CMMCC. Following chemical treatments, the EDX analysis revealed that each fiber sample contained a highly pure cellulose elemental composition. Thus, results explain the utilization of agricultural waste, pineapple leaf fiber to high valuable products like highly crystalline MCC, in addition further modification of MCC could leads to formation of highly functional material that could be used for other applications too in future.
Large Scale Knowledge Graph Representation Learning
Authors: Badrouni Marwa , Katar Chaker , Inoubli Wissem 
Published: March 2024

Abstract

The knowledge graph emerges as powerful data structures that provide a deep representation and understanding of the knowledge presented in networks. In the pursuit of representation learning of the knowledge graph, entities and relationships undergo an embedding process, where they are mapped onto a vector space with reduced dimensions. These embeddings are progressively used to extract their information for a multitude of tasks in machine learning. Nevertheless, the increase data in knowledge graph has introduced a challenge, especially as knowledge graph embedding now encompass millions of nodes and billions of edges, surpassing the capacities of existing knowledge representation learning systems.In response to these challenge, this paper presents DistKGE, a distributed learning approach of knowledge graph embedding based on a new partitioning technique.In our experimental evaluation,we illustrate that the proposed approach improves the scalability ofdistributed knowledge graph learning with respect to graph size compared toexisting methods in terms of runtime performances in the link prediction task aimed at identifying new links between entities within the knowledge graph.
Heavy Metal Pollution in Soils near Ilesha Gold Mining Area, Nigeria
Authors: Adekiya Aruna Olasekan , Oloruntoba Adedeji , Ewulo Babatunde Sunday , Ogunbode Timothy , Sangoyomi Titilayo 
Published: March 2024

Background
The discovery of extensive gold deposits has raised concerns about potential heavy metal contamination in waterways and adjacent soils, particularly in developing nations like Nigeria where environmental regulations may not be stringent enough.

Objective
A research study was conducted to assess the levels of heavy metals in surface soils (0 to 25 cm deep) across 30 sites within three selected areas (Epe, Igun, and Ijana) located in the gold mining region of Ilesha, Osun State Nigeria.

Methods
The study employed an atomic absorption spectrophotometer to measure the total concentrations of heavy metals, specifically arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn). Furthermore, the research encompassed an examination of various physicochemical properties of the soil samples, including organic matter content, pH levels, organic carbon content, calcium content, phosphorus levels, cation exchange capacity, and particle size distribution.

Results
Results showed a range mean concentration with standard deviation of As, Cd, Co, Cr, Cu, Ni, Pb and Zn of 1.0 – 7.1 ± 1.77 mg kg-1, 0.9 – 4.2 ± 0.84 mg kg-1, 1.0 – 6.0 ± 1.29 mg kg-1, 1.1 – 6.4 ± 1.57 mg kg-1, 2.90 – 20.9± 4.00 mg kg-1, 1.1 – 6.4 ±1.56 mg kg-1, 0.7 – 6.7 ±1.26 mg kg-1 and 11.7 – 70.7± 17.75 mg kg-1, respectively. The investigation of soils in three specific locations revealed significant contamination by heavy metals. However, it is worth noting that the concentrations of these metals fell below the established intervention levels outlined by environmental protection agencies such as the World Health Organization and the Food and Agriculture Organization. The distribution of heavy metals and their availability exhibited a direct correlation with the distance from the mining sites, spanning from 0 to 900 meters. Two critical factors influencing the concentration of heavy metals in these areas were identified as soil particle size, specifically the clay percentage, and pH levels.

Conclusion
Despite the presence of heavy metal pollution in the soils of Epe, Igun, and Ijana, they managed to maintain metal levels below the intervention thresholds set by environmental protection agencies, with the exception of cadmium (Cd).
KONSUMERISME, VISI HIDUP, DAN PENDIDIKAN DALAM KELUARGA
Authors: BASWEDAN ALIYAH RASYID 
Published: March 2024

Abstract University students are specific group of youth who are expected to become the driving force of the future development of the nation. Therefore, they have to be will qualified persons with product oriented culture, in order to transform the culture to be positive. This study examined the students’ lifestyle; to find out whether it was more product or consumption oriented. Specifically this study examined the consumerism tendency of the UNY students, and to find out whether their family education and their live vision had significant contribution to the students’ consumerism. The data indicated that : (1) the consumerism of the UNY students were not high, (2) the mothers’ role was more dominant that the fathers’ in reducing the students consumerism, and (3) the students who had clear life vision were at low consumerism. Keywords: university student, consumerism
Implementasi Pendekatan Saintifik Mapel Matematika Kelas VII Tahun Pelajaran 2013/2014 pada Kurikulum 2013 DIY
Authors: Rusindrayanti Rusindrayanti , Santoso Rusgianto Heru 
Published: March 2024

Penelitian ini bertujuan untuk mendeskripsikan (1) pemahaman guru matematika, (2) implementasi pendekatan saintifik, dan (3) hambatan dan solusi. Penelitian ini merupakan penelitian deskriptif kualitatif. Subjek penelitian ini 20 orang guru matematika kelas VII di Provinsi DIY. Teknik pengumpulan data yang digunakan adalah observasi, wawancara, dan dokumentasi. Instrumen penelitian ini adalah lembar review dokumen, lembar observasi, dan pedoman wawancara. Data dianalisis secara kualitatif dengan proses pengumpulan data, reduksi data, penyajian data, dan verifikasi atau penarikan kesimpulan. Hasil penelitian menunjukkan bahwa (1) pemahaman guru memiliki kriteria baik dengan rata-rata penilaian total 3,86 dari nilai maksimum 5 (2) Implementasi pendekatan saintifik memiliki kriteria baik dengan rata-rata penilaian total 3,65 dari nilai maksimum 5. (3) Terdapat hambatan pada pembuatan RPP dan pelaksanaan pembelajaran. Cara mengatasi hambatan di antaranya, yaitu aktif dalam kegiatan yang diselenggarakan oleh MGMP, mengikuti workshop/pelatihan, kreatif dan inovatif dalam melaksanakan pembelajaran dengan pendekatan saintifik, dan pendampingan dari tim pengembang kurikulum, guru inti, kepala sekolah, serta pengawas tingkat kabupaten atau kota.Kata Kunci: implementasi, pendekatan saintifik, matematika, Kurikulum 2013 The Implementation of Scientific Approach in Mathematics Subject for Grade VII in 2013/2014 of Curriculum 2013 DIY AbstractThis study is to describe (1) mathematics teachers' understanding, (2) the implementation of the Scientific Approach, and (3) the constraints and their solutions. This study is descriptive qualitative. The subjects in this study were 20 mathematics teachers of year VII in DIY. The data collection techniques used were observation, interviews, and documentation. The instruments used in this study were review document sheets, observation sheets, and interview manual sheets. The data were analyzed qualitatively based on the process of data collecting, data reduction, data presenting, and verification or conclusion drawing. The results of the study showed that (1) the teachers' understanding is in good criteria with the average total score of 3.86 for maximum score 5. (2) The implementation of the Scientific Approach is in good criteria with the total average score of 3.65 for maximum score 5. (3) There are constraints in designing the lesson plan and its implementation. The ways to anticipate it include being active in MGMP routine activities, taking part in a workshop/training, being creative and innovative in using the Scientific Approach in the teaching process, getting the assistance from the curriculum developers, core teachers, school principals and the regional superintendant.Keywords: implementation, scientific approach, mathematics, Curriculum 2013
Kompetensi pedagogik guru matematika SMP di Kabupaten Buol Sulawesi Tengah dalam mengimplementasi Kurikulum 2013
Authors: Asdar Asdar 
Published: March 2024

Penelitian ini bertujuan untuk mendeskripsikan tingkat kompetensi pedagogik guru matematika SMP di Kabupaten Buol, Sulawesi Tengah, Indonesia dalam mengimplementasikan Kurikulum 2013. Penelitian ini merupakan penelitian survei yang menggunakan pendekatan kualitatif dan kuantitatif dengan populasi penelitian adalah seluruh guru matematika SMP di Kabupaten Buol. Subjek utama dalam penelitian ini adalah guru matematika sebanyak 32 orang dan subjek pendukungnya adalah siswa dimana guru matematika tersebut bertugas sebanyak 970 orang. Pengumpulan data dilakukan dengan metode tes dan nontes dengan instrumen yang digunakan adalah lembar angket dan lembar soal. Analisis data dilakukan secara deskriptif kuantitaif dan kualitatif. Kompetensi pedagogik diukur melalui penilaian sikap, pengetahuan, dan keterampilan guru matematika dalam merancang, melaksanakan, mengevaluasi, dan refleksi hasil evaluasi pembelajaran. Hasil penelitian menunjukkan bahwa kompetensi pedagogik guru matematika SMP di Kabupaten Buol, Sulawesi Tengah berada pada kategori cukup. Pedagogical competence of junior high school mathematics teachers in Buol Regency of Central Sulawesi in implementing Curriculum 2013 AbstractThis study was aimed to describe the level of pedagogical competence of junior high school mathematics teachers in Buol Regency, Central Sulawesi Province of Indonesia, in implementing Curriculum 2013. This study was a survey research using a descriptive model of qualitative and quantitative approach. Population in this research were junior high school mathematics teachers in Buol Regency. The main subjects of research were 32 mathematics teachers and the proponent subjects were 970 students who were taught by its mathematics teachers. The data collection was conducted using the test and non-test and the instruments used were a questionnaire sheet and a test sheet. Pedagogical competence was measured by assessing the attitudes, knowledge, and skills of mathematics teachers in designing, implementing, evaluating, and reflecting the results of the evaluation. The results show that pedagogical competence of junior high school mathematics teachers in Buol Regency in the category “enough”.
Problem Posing dalam Setting Kooperatif Tipe TAI Ditinjau dari Kemampuan Komunikasi dan Pemecahan Masalah
Authors: Kusnaeni Kusnaeni , Retnawati Heri 
Published: March 2024

Penelitian ini bertujuan: (1) mendeskripsikan keefektifan pendekatan problem posing dalam setting pembelajaran kooperatif tipe TAI dan pendekatan konvensional ditinjau dari kemampuan komunikasi dan pemecahan masalah matematis, (2) membandingkan keefektifan pendekatan problem posing dalam setting pembelajaran kooperatif tipe TAI dan pendekatan konvensional ditinjau dari kemampuan komunikasi dan pemecahan masalah matematis. Populasi dalam penelitian ini adalah siswa kelas VIII SMP Negeri 11 Purworejo yang berjumlah 190 orang dan tersebar dalam 6 kelas. Berdasarkan pengambilan sampel diperoleh kelas VIII F sebagai kelompok eksperimen dan kelas VIII E sebagai kelompok kontrol. Data dianalisis menggunakan one-sample t-test, uji MANOVA dengan rumus T2 Hotteling dan uji-t dengan kriteria Bonferroni. Hasil penelitian adalah sebagai berikut. (1) Pada taraf kepercayaan 95%, penerapan pendekatan problem posing dalam setting pembelajaran kooperatif tipe TAI efektif, sedangkan pendekatan konvensional tidak efektif ditinjau dari kemampuan komunikasi dan pemecahan masalah matematis. (2) Penerapan pendekatan problem posing dalam setting pembelajaran kooperatif tipe TAI lebih efektif dibandingkan dengan penerapan pendekatan konvensional.Kata Kunci: problem posing, pembelajaran kooperatif tipe TAI, komunikasi matematis, pemecahan masalah matematis. The Cooperative of the TAI Type-Set Problem posing in Terms of the Communication and Problem Solving Competencies AbstractThis study aims to: (1) describe the effectiveness of the cooperative learning of the TAI type-set problem posing approach and the conventional approach in terms of the mathematical communication and problem solving competencies, (2) compare the effectiveness of the two approaches in terms of their mathematical communication and problem solving competencies. The research population comprised the 190 Grade VIII students, distributed in six classes, of SMP Negeri 11 Purworejo. The selected sample consisted of Class VIII F as the experimental group and Class VIII E as the control group. The data were analyzed using one-sample t-test, MANOVA test with T2 Hotteling’s formula and t-test with Bonferroni criterion. The results of the study are as follows. (1) At the 95% level of signi-ficance, the mathematics teaching through the cooperative learning of the TAI type-set problem posing approach is effective and the conventional approach is not effective in terms of the mathematical communication and problem solving competencies. (2) The application of the cooperative learning of the TAI type-set problem posing approach is more effective than that of the conventional approach.Keywords: Problem posing, Cooperative Learning of the TAI Type, Mathematical Communication, Mathematical Problem Solving
Pengaruh PMR dengan TGT terhadap Motivasi, Sikap, dan Kemampuan Pemecahan Masalah Geometri Kelas VII SMP
Authors: Amri Mohammad Saeful , Abadi Agus Maman 
Published: March 2024

Penelitian ini bertujuan untuk mendeskripsikan: (1) keefektifan Pembelajaran Matematika Realistik (PMR) dan Pembelajaran Matematika Realistik (PMR) dengan metode belajar kooperatif tipe Teams Games Tournaments (TGT) ditinjau dari motivasi, sikap, dan kemampuan pemecahan masalah; (2) apakah PMR dengan TGT lebih baik dari pada PMR ditinjau dari motivasi, sikap, dan kemampuan pemecahan masalah Geometri pada siswa kelas VII SMP Budi Mulia Yogyakarta. Penelitian ini merupakan penelitian eksperimen semu dengan pretest-postest non equivalent group design. Populasi penelitian ini adalah seluruh siswa kelas VII yang terdiri atas tiga kelas. Kemudian diambil dua kelas secara acak sebagai sampel. Kelas VIIA diberi perlakuan PMR sedangkan VIIB diberi perlakuan PMR dengan TGT. Instrumen yang digunakan berupa angket motivasi, sikap, dan tes kemampuan pemecahan masalah. Validasi instrumen menggunakan validasi isi dan validasi konstruk. Reliabilitas instrumen menggunakan Alpha Cronbach. Data dianalisis dengan uji t-test one sample dan uji Manova. Hasil penelitian ini menunjukkan bahwa: (1) PMR dan PMR dengan TGT efektif ditinjau dari motivasi, sikap dan kemampuan pemecahan masalah; (2) MPR dengan TGT tidak lebih baik dari pada PMR ditinjau dari motivasi, sikap, dan kemampuan pemecahan masalah Geometri pada siswa kelas VII SMP Budi Mulia Yogyakarta.Kata Kunci: PMR, metode belajar kooperatif tipe TGT, motivasi, sikap, kemampuan pemecahan masalah matematika. AbstractThis study aimed to describe: (1) the effectiveness of Realistic Mathematic Education (RME) and Realistic Mathematic Education (RME) with cooperative learning of Teams Games Tournaments (TGT) type in terms motivation, attitude, and problem solving skills; (2) whether the RME with of TGT was better than RME in terms motivation, attitudes, and problem solving skills in geometry of The grade VII SMP Budi Mulia Dua Yogyakarta. This research is a quasi experiment with pretest-postest non equivalent group design. The research population was all students of grade VII SMP that tree classes. Two classes were taken randomly as the sample. VIIA class implemented RME while VIIB class implemented RME with TGT. The instruments used to collect the data were motivation and attitude questionnaires, and problem solving skills test. The instruments were validated using their content and construct. Reliability was measured using Cronbach Alpha. The data were analyzed statistically using the one sample t-test and Manova. The results of research show that: (1) RME and RME with TGT are effective in terms of motivation, attitudes, and mathematical problem solving skills; (2) RME with TGT is not better than RME in terms of motivation, attitude, and mathematical problem solving skills in geometry of grade VII SMP Budi Mulia Dua Yogyakarta.Keywords: RME (Realistic Mathematics Education), cooperative learning of TGT type, motivation, attitude, mathematical problem solving skills