bluuebunny/crossref_metadata_2025 huggingface dataset:
Efficient Numerical Shape Optimization of Natural Convection Cooled Heat Sinks
Authors: McCay Oisin , Nimmagadda Rajesh , Ali Syed Mughees , Persoons Tim
Published: July 2023

Efficient natural convection-cooled heat sinks are vital to the future of electronics cooling due to their low energy demand in the absence of an external pumping agency in comparison to other cooling methods. The present study is aimed to identify the most effective fin design for enhancing heat transfer in natural convection applications. Initially, a baseline case with rectangular fins was considered in the present study and it was optimized with respect to fin spacing. This optimized baseline case is then validated against the semi-empirical correlation proposed by Elen-baas (1942) [2]. Upon good agreement, the validated model is used for comparative analysis of different heat sink configurations with rectangular, trapezoidal, curved, and angled fins. The optimised fin spacing obtained for the baseline case is also used for the other heat sink configura-tions and then the fin designs are further optimized for better performance. However, for the an-gled fin case, the optimized configuration proposed by Zhang et al. (2020) [3] is adopted in the present study. This study is carried out with Ansys Fluent for a Rayleigh number of 2.4 × 10^6. The proposed novel curved fin design with a shroud defined as Case C4 showed a 4.1% decrease in the system’s thermal resistance with an increase in the heat transfer coefficient of 4.4% when compared to the optimized baseline fin case. The obtained results are further non-dimensionalized with proposed scaling in terms of the baseline case for the two novel heat sink cases (trapezoidal, curved).
Quasi-Static Experimental Study on Soil-Structure Interaction of Reinforced Concrete Piles With High Nominal Axial Compression Ratio in Silty Clay
Authors: Sun Yunlun , Li Bin , Wang Yougang , Li Sihan , Jing Liping , Qi Wenhao
Published: July 2023

To improve the understanding of soil–pile interaction of laterally loaded piles, the quasi-static test of pile group foundation in silty clay with 5 foundation piles arranged in cross shape is carried out. The direct measurement-based p–y curves at different depths showed nonlinear behavior, in which the initial stiffness and ultimate soil reaction increased as the depth increased. The loading displacement amplitude corresponding to the failure of each foundation pile in the high axial compression reinforced concrete pile group foundation is given as follows: the front-end nappe foundation pile (#3 pile) is 6mm, the middle pile is 16mm, the front-end nappe foundation pile is 20mm, and the loading displacement amplitude of side pile is 24mm. In silty clay, due to the existence of pile group effect, the edge effect has little effect on the horizontal foundation bed coefficient of foundation pile in pile group, while the influence of masking effect on the horizontal foundation bed coefficient of each foundation pile in pile group is not related to the position of pile, but only to the existence of masking effect, and the influence of different columns of masking effect on the horizontal foundation bed coefficient is the same.
The Multifaceted Actions of Polyphenols in the Management of Type-2 Diabetes Mellitus
Authors: González Ileana , Lindner Cristian , Schneider Ivan , Diaz Erik , Morales MIguel A. , Rojas Armando
Published: July 2023

Type-2 diabetes mellitus is recognized as a serious public health concern with a considerable impact on human life, long-term health expenditures, and substantial health losses.
In this context, the use of dietary polyphenols to prevent and manage Type 2 diabetes mellitus is widely documented. These dietary compounds exert their beneficial effects by several actions, including the protection of pancreatic islet β-cell, the antioxidant capacities of these molecules, their effects on insulin secretion and actions, the regulation of intestinal microbiota, and their contribution to ameliorating diabetic complications, particularly those of vascular origin.
In the present review, we intend to highlight these multifaceted actions and the molecular mechanisms by which these plant-derived secondary metabolites exert their beneficial effects on type-2 diabetes patients.
Experimental Investigation of Spatter Particle Behavior and Improvement in Build Quality in PBF-LB
Authors: Yoshida Mitsuyoshi , Furumoto Tatsuaki , Sakuma Kazuaki , Kawasaki Kai , Itagaki Kazuyuki
Published: July 2023

Laser powder bed fusion with metallic materials as a heat source (PBF-LB/M) is an additive manufacturing (AM) technique that has been applied in various industrial fields to reduce component weight, improve functionality, lower manufacturing costs, and reduce lead times. However, detailed characterization of the PBF-LB/M phenomenon is challenging because of the mutual influence of laser parameters and chamber environment. In PBF-LB/M, the powder is repeatedly melted and solidified by laser irradiation. However, the hot spatter generated in the process causes defects and insufficient melting. In this study, we use a high-speed camera to observe hot spatter ejected from the laser-irradiated area of a commercial PBF-LB/M system and investigate the effects of inert gas flow and laser scanning strategy on hot spatter behavior. We found that the ejection velocity of hot spatter immediately after ejection from the melt pool decreases as the particle size increases and is not affected by gas flow velocity. Furthermore, we observed that hot spatter is always ejected behind the laser scanning direction, but the ejection direction of the hot spatter changes over time. Particularly, when the laser scanning direction follows the gas flow direction, the spatter ejected in the backward direction of the scanning direction may follow a large curve over time to the front of the scanning direction and deposit on the build part. Based on the results of these investigations, we drew conclusions on the effect of the laser scanning direction with respect to the gas flow direction on the build quality and found that scanning the laser in the opposite direction to the gas flow is more effective in improving the surface quality.
Influence of Oxygen Concentration in Building Environment and Oxidation Extent of Maraging Steel on Spatter Generation Behavior in Powder Bed Fusion
Authors: Yamaguchi Mitsugu , Tsubouchi Kotaro , Kamimoto Asako , Yamada Shinnosuke , Sugiyama Kenji , Furumoto Tatsuaki
Published: July 2023

This study investigated the influence of oxygen concentration in the building environment and the degree of oxidation of maraging steel powder on spatter generation behavior during powder bed fusion (PBF) process. The powders were oxidized at various heat treatment temperatures, and their degree of oxidation was evaluated using Auger electron spectroscopy. The spatter generation behavior of the powders at oxygen concentrations of 1.0×102 ppm (99.99% purity) to 5.0×104 ppm (95% purity) in the building atmosphere was then investigated. The results indicated that the presence of oxygen in the building environment had a greater effect on spatter generation than the oxide film on the maraging steel powder. The oxygen concentration affected the velocity and angle of spatter particles. At an oxygen concentration of 5.0×104 ppm, the number of spatter particles was 2.5 times greater than that of 1.0×102 ppm. A higher oxygen concentration resulted in an increase in the number of fume particles adhering to the spatter surface, reducing its reusability. The oxide film on the powder did not significantly affect the vapor jet behavior, but it altered the powder’s flowability, impacting the spatter generation. To decrease spatter generation and obtain a high-quality spatter surface, it is recommended that the oxygen concentration in the building environment should be maintained at 1.0×102 ppm.
KESEJAHTERAAN REMAJA KELUARGA BURUH MIGRAN DAN BUKAN BURUH MIGRAN BERDASARKAN MAQASHID SYARIAH DI BANYUMAS
Authors: Kabbaro Hurriyyatun
Published: July 2023

Remaja merupakan tahap perkembangan manusia yang memiliki tugas perkembangan mencari identitas diri. Keluarga merupakan salah satu pihak yang mendukung dan mendampingi proses pemenuhan tugas perkembangan remaja. Remaja dari keluarga buruh migran memiliki tantangan karena ketidakberadaan satu dan atau dua orang tua di lingkup tempat tinggalnya. Penelitian ini bertujuan menganalisis kesejahteraan remaja keluarga buruh migran (BM) dan bukan buruh migran (BBM) di Kabupaten Banyumas berdasarkan kajian Maqashid Syariah. Penelitian ini melibatkan 86 remaja yang dipilih secara purposif. Responden terdiri atas 44 remaja dari keluarga buruh migran dan 42 remaja dari keluarga bukan buruh migran. Kesejahteraan Remaja diukur menggunakan Maqashid Syariah – Family Wellbeing Index (MSFWI). Hasil penelitian menunjukkan bahwa rata-rata capaian maqashid syariah dimensi agama, intelektual, dan keturunan remaja dari keluarga BM lebih tinggi dibandingkan dengan capaian remaja dari keluarga BMM. Akan tetapi, rata-rata capaian maqashid syariah dimensi jiwa remaja keluarga BM lebih rendah dibandingkan dengan capaian remaja dari keluarga BBM. Perbedaan nyata dan signifikan ditemukan pada capaian maqashid syariah dimensi keturunan antara remaja BM dengan remaja BMM di wilayah Banyumas. Hasil penelitian menunjukkan bahwa tidak adanya perbedaan nyata dan signifikan pada capaian maqashid syariah dimensi agama, jiwa, dan intelektual antara remaja BM dengan remaja BMM. Keluarga buruh migran perlu meningkatkan interaksi dan kualitas hubungan antara orang tua dengan remaja. Hal ini dapat mendorong kesejahteraan remaja pada keluarga buruh migran.
PENGEMBANGAN VIDEO PENYULUHAN BAHASA KASIH REMAJA PUTRI MENGGUNAKAN CANVA DI PUSAT PEMBELAJARAN KELUARGA KOTA BANDUNG
Authors: Razmuliani Novia , Achdiani Yani , Ana Ana
Published: July 2023

The study was set against a background of the development of digital technology that supported the quality of spreading information in outreach activities at the Bandung family learning center. Multifaceted technological developments provide ease for the medium of counseling videos. The purpose of this study aims to develop fatherhood videos on the language of love using the canva in the family learning center to teach fathers the socialization needed to educate fathers in order to understand and express their relationships with young women in order to enhance the relationship of fatherhood and child in order to secure the relationship of fatherless to unfurl the growing emotional mental growth of fatherless A child as well as father's diversity in the family, this can be conveyed by counseling. The study used to research and development (r&d) methods with planning, production, and development models (PPE). The data-gathering technique was done with demand analysis, interviews, and expert judgment with two media experts, one materials expert, and one dad school practitioner. The findings of research on judgment point out that the study on the language of young women's love development used canva in the Bandung family study center was deemed worthy of both material and media, so that it could be used as a medium to educate father's school activities in PUSPAGA.

 

Abstrak

Penelitian ini dilatarbelakangi oleh perkembangan teknologi digital yang mendukung kualitas penyebaran informasi dalam kegiatan penyuluhan di Pusat Pembelajaran Keluarga Kota Bandung. Perkembangan teknologi yang beragam memberikan kemudahan pada media penyuluhan berupa video penyuluhan. Tujuan penelitian ini bermaksud untuk mengembangkan video penyuluhan terkait peran ayah terhadap remaja putri mengenai Bahasa Kasih menggunakan canva di Pusat Pembelajaran Keluarga untuk memberikan sosialisasi pada ayah yang perlu diajarkan dalam rangka mengedukasi para ayah agar dapat memahami dan mengekspresikan afeksinya pada remaja putri guna mempererat hubungan kedekaatan ayah dan anak agar terhidar dari fatherless yang mengakibatkan tidak maksimalnya tumbuh kembang mental emosi dari seorang anak serta keberfungsian fathering dalam keluarga, hal ini dapat disampaikan melalui penyuluhan. Penelitian ini menggunakan metode Research and Development (R&D) dengan model Planning, Production, and Evaluation (PPE). Teknik pengumpulan data dilakukan dengan analisis kebutuhan, wawancara dan expert judgment dengan dua orang ahli media, satu orang ahli materi, dan satu orang praktisi Sekolah Ayah. Hasil temuan penelitian yang diperoleh dari hasil expert judgment menunjukan bahwa penelitian yang berjudul Pengembangan Video Bahasa Kasih Remaja Putri Menggunakan Canva di Pusat Pembelajaran Keluarga Kota Bandung dinyatakan dengan kriteria layak, baik segi materi maupun media, sehingga dapat digunakan sebagai media penyuluhan dalam kegiatan Sekolah Ayah di PUSPAGA.
PENGEMBANGAN MEDIA PEMBELAJARAN PENGAWETAN MAKANAN DARI BAHAN NABATI BERBANTUAN INTERACTIVE VIRTUAL WHITEBOARD DI SEKOLAH MENENGAH ATAS
Authors: Rizka Latifah  , Yoyoh Jubaedah  , Yani Achdiani
Published: July 2023

This research is aimed to develop learning media about food preservation from vegetal ingredients with interactive virtual whiteboard in high school. The method used is Research and Development with the ADDIE Model (Analysis, Design, Development, Implementation and Evaluation). Tests carried out by validation test and group test. The results by media expert validation obtained a percentage score of 89.8%, material experts 92.1%, and IT experts 95.6%. Based on this assessment, the learning media developed was very eligible. Based on students' responses, this learning media obtained a percentage score of 84.7% which gave a response of strongly agree and agree that learning activities with virtual whiteboards are more fun, atractive, and interactive. Based on the teacher's response, this learning media obtained a percentage score of 95% which was included in the very eligible category. It shows that the learning media used are in accordance with the content of the material, effective and interesting, and can convey information to students clearly. The conclusion shows that interactive virtual whiteboard learning media is very eligible to use in learning food preservation from vegetal ingredients.

 

Abstrak

Tujuan penelitian ini yaitu mengembangkan media pembelajaran pengawetan makanan dari bahan nabati berbantuan interactive virtual whiteboard di Sekolah Menengah Atas. Metode yang digunakan adalah Research and Development (R&D) dengan Model ADDIE (Analysis, Design, Development, Implementation dan Evaluation). Pengujian dilakukan melalui uji validasi dan uji kelompok. Hasil validasi oleh ahli media memperoleh persentase skor 89,8%, ahli materi 92,1%, dan ahli IT 95,6%. Berdasarkan penilaian tersebut, media pembelajaran yang dikembangkan dinyatakan sangat layak. Berdasarkan tanggapan peserta didik, media pembelajaran ini memperoleh persentase skor 84,7% yang memberikan respon sangat setuju dan setuju bahwa kegiatan pembelajaran dengan papan tulis virtual lebih menyenangkan, menarik, dan interaktif. Berdasarkan tanggapan guru, media pembelajaran ini memperoleh persentase skor 95% yang termasuk kategori sangat layak. Hal ini menunjukkan bahwa media pembelajaran yang digunakan sudah sesuai dengan isi materi, efektif dan menarik, serta dapat menyampaikan informasi kepada peserta didik dengan jelas. Kesimpulan menunjukkan bahwa media pembelajaran berbantuan interactive virtual whiteboard sangat layak digunakan pada pembelajaran pengawetan makanan dari bahan nabati.
HUBUNGAN ANTARA STRES AKADEMIK DENGAN ACADEMIC PERFORMANCE PADA SANTRI MADRASAH ALIYAH PONDOK PESANTREN AL HAMID
Authors: Khafifah Kirana Artha , Hasanah Uswatun , Zulfa Vania
Published: July 2023

This study aims to determine the relationship between academic stress and academic performance in students of Madrasah Aliyah Pondok Pesantren Al-Hamid. This research is a quantitative correlation research with survey method. The sampling technique used simple random sampling with a population of 252 students. Then the slovin formula produces a sample of 155 students. Retrieval of data using the Educational Stress Scale instrument. The data analysis used includes the Pearson Product Moment correlation test. The data that has fulfilled the validity and reliability tests were processed to produce a Pearson correlated value of 0.189. The results of the analysis conclude that there is a positive relationship between academic stress and academic performance. Based on these results, it can be seen that students who experience stress will actually be more motivated to study harder. The higher the stress or pressure that students feel during the learning process, the more motivated students will be to be more diligent in learning and better at carrying out the assignments given by the teacher. This of course will make students' academic grades better. The stress that students experience is positive stress or eustress. Positive stress makes students not give up with the pressure they experience but on the contrary, positive stress will bring a sense of enthusiasm and desire to fight against academic pressures. The ability of students to turn negative stress into positive stress is inseparable from the daily activities of students which affect their behavior such as always thinking, praying and fasting which can reduce negative thoughts and excessive feelings of anxiety.
HUBUNGAN DUKUNGAN SOSIAL ORANGTUA DAN ADVERSITY QUOTIENT DENGAN MOTIVASI BELAJAR PADA SISWA KELAS 7 SMP NEGERI 1 BATURETNO
Authors: Alfaruqy Muhammad Zulfa , Sari Isnaeni Anggun , Safuroh Siti
Published: July 2023

The transition from elementary school to junior high school is a challenge for students, especially first-year students. First-year students need to have high learning motivation to be able to answer current academic and non-academic challenges. Learning motivation is influenced by intrinsic factors which come from inside and extrinsic factors from the social environment. The research aims to determine the relationship between parental social support and adversity quotient with learning motivation, both partial and simultaneous. The population is seventh-grade students of SMP Negeri 1 Baturetno. We used total population sampling. The subjects involved in this study were all first-year junior high school students, totaling 255 people. Data collection used the Parents' Social Support Scale (12 items, α = 0.893), Adversity Quotient Scale (16 items, α = 0.895), and Learning Motivation Scale (11 items, α = 0.891). Data were analyzed by multiple regression analysis. The results showed that there was a relationship between parental social support and adversity quotient with learning motivation, both partial and simultaneous. Parental social support and adversity quotient have an effect of 61.6% on students' learning motivation. This research has implications for the urgency of the role of the family in supporting student success at school. Families, especially parents, need to be in a social environment that supports and forges student resilience to develop motivation to learn.
PERAN PARENTAL BONDING DALAM MENINGKATKAN SELF ESTEEM ANAK USIA REMAJA
Authors: Elmanora  , Handriani Alya Yunika , Naomi Ruthy Bernike , Aurelia Puspa , Ganda Kezia Rosalinda , Pasla Hartian
Published: July 2023

This study aims to analyze the effect of parental bonding on self-esteem in adolescent children. This study used a cross-sectional design and an associative quantitative approach. Data collection be done in 2022 in the Jakarta area. Respondents in this study were 81 adolescents who were selected using a purposive sampling technique. This study collected data on respondent characteristics, parental bonding, and self-esteem. The research variable measurement instrument comprised 25 parental bonding items and ten self-esteem items variables. Each statement has four response options: strongly agree, agree, disagree, and strongly disagree. Data processing uses descriptive statistics and simple linear regression tests. The study results show that adolescent self-esteem is in the medium category. Adolescents also have a level of closeness with their parents in the medium category. The simple linear regression test results show that parental bonding significantly affects adolescent self-esteem (β=0.763, p<0.01). Based on these results, parental bonding can increase self-esteem in adolescents. The closer the relationship between parents and adolescents, the better the adolescent's self-esteem. Thus, increasing the closeness between parents and children can be a solution to increase self-esteem in children, especially adolescents.
Pendampingan Pembentukan Komunitas Remaja (Koja) dalam Meningkatkan Kualitas Generasi Muda Islam di Perum Panorama Purwakarta
Authors: Rachman Nanda Azriani , Effendi Muhamad Ridwan
Published: July 2023

Pengabdian ini bertujuan untuk memberikan pemahaman kepada pemuda atau generasi muda tentang peran penting pemuda dalam pengembangan karakter masyarakat, dan meningkatkan kualitas generasi muda untuk mempersiapkan generasi masa depan yang berkualitas. Peran pemuda dalam masyarakat ini dapat dilakukan dengan melakukan berbagai kegiatan yang melibatkan anak usia dini dan remaja. Setelah menemukan permasalahan remaja di Perum Panorama, penulis menggunakan metode sosialisasi untuk mencapai tujuan tersebut terhadap remaja atau pemuda di kawasan Perum Panorama dengan tema "Peran Pemuda dalam Masyarakat". Dalam sosialisasi tersebut dijelaskan bahwa seorang remaja harus mampu menjadi penggerak di tempat tinggalnya masing-masing untuk meningkatkan kualitas generasi muda dan membantu memajukan daerah. Untuk mewujudkan tujuan pelaksanaan pengabdian masyarakat ini, dilakukan beberapa kegiatan dimana pemuda Perum Panorama menjadi motor penggerak beberapa kegiatan yang dilakukan untuk menyambut bulan suci Ramadhan. Hasil yang diperoleh berdasarkan pelayanan yang telah dilakukan. Hasil tersebut memotivasi para pemuda RW 12 untuk melakukan kegiatan-kegiatan positif untuk berperan aktif di masyarakat. Hasil kuesioner yang diisi oleh anak-anak menggambarkan keraguan mereka untuk menjadi penggerak di Perum Panorama. Kecurigaan pemuda RW 12 itu karena tidak adanya organisasi yang menampung minat dan bakatnya untuk berperan dalam Panorama Plum. Untuk itu, upaya tim pengabdian masyarakat tidak terbatas pada program KPM (Kuliah Pengabdian kepada Masyarakat) tetapi dilanjutkan di luar program.
Peningkatan pemahaman hukum remaja tentang anak berhadapan dengan hukum (abh) di desa wisata cisaat, kecamatan ciater, kabupaten subang, jawa barat, indonesia
Authors: Timoera Dwi Afrimetty , Casmana Asep Rudi , Putra Aldo Pratama , Oktawijaya Firdaus
Published: July 2023

Tujuan dari kegiatan pengabdian kepada masyarakat ini adalah untuk dapat meningkatkan pemahaman tentang anak berhadapan dengan hukum (ABH) bagi anak-anak dan orang tua yang ada di Desa Wisata Cisaat, Kecamatan Ciater, Kabupaten Subang, Jawa Barat. Anak Berhadapan Hukum dapat disebut sebagai Anak yang Berkonflik dengan Hukum yang selanjutnya disebut Anak adalah anak yang telah berumur 12 (dua belas) tahun, tetapi belum berumur 18 (delapan belas) tahun yang diduga melakukan tindak pidana. Beberapa dampak yang ditimbulkan antara lain diskriminasi, anak menjadi kurang percaya diri, anak memperoleh perundungan oleh lingkungan sebayanya. Tidak jarang anak yang berhadapan dengan hukum, baik itu pelaku, saksi atau bahkan korban menjadi tertekan dan akhirnya stress dengan kondisi ini. pentingnya untuk menjaga nama ataupun privasi dari anak menjadi hal terpenting dalam proses hukum. Oleh sebab itu solusi yang akan dilakukan dalam kegiatan pengabdian kepada masyarakat ini adalah memberikan pemahaman kepada orang tua, untuk dapat mencegah anak-anaknya agar tidak berhadapan dengan hukum. Kedua apabila terdapat anak yang telah berhadapan dengan hukum, maka berusaha untuk dapat memberikan pemahaman kepada para anak-anak tersebut agar mereka tidak mengulangi perbuatannya, sehingga permasalahan mengenai anak berhadapan hukum dapat dihindari kembali.
First Experience of Single-Port Robotic Areolar Approach Thyroidectomy
Authors: Choi Yun Suk , Choi Ji Hyun , Jeon Mi Sook , Yu Min Jung , Lee Hye Mi , Shin Ae Young , Yi Jin Wook
Published: July 2023

Objectives. Numerous minimally invasive thyroidectomy techniques have been developed and are actively utilized in hospitals around the globe. Herein, we describe a recently developed minimally invasive thyroidectomy technique that employs the da Vinci SP, and we present the preliminary clinical outcomes of single-port robotic areolar thyroidectomy (SPRA).Methods. A 3-cm semi-circular incision on the right areola and a small 8-mm incision on the left areola were created. Using hydro-dissection and an advanced bipolar device, a subcutaneous skin flap was created, extending from the areola to the thyroid cartilage. The da Vinci SP was then inserted through the incision in the right areola. Between December 2022 and March 2023, 21 SPRA procedures were conducted. Patients’ medical records and surgical videos were subsequently reviewed.Results. Lobectomy was performed in 17 patients, isthmectomy in 2 patients, and total thyroidectomy in 2 patients. The mean flap time was 14.9±4.2 minutes and the console time was 62.4±17.1 minutes. The mean tumor size was 0.89± 0.65 cm and the number of retrieved lymph nodes was 3.94±3.98 (range, 0–12). There were no observed instances of vocal cord palsy or hypoparathyroidism.Conclusion. We successfully developed and performed the novel SPRA for the first time worldwide. Unlike other robotic surgery methods, SPRA is less invasive and leaves no visible scars. This technique employs a sophisticated single-port robotic device. However, to assess the efficacy of this method, we need to analyze more cases and conduct comparative studies in the near future.
PENGGUNAAN ABU BATU DAN SPLIT DALAM PEMBUATAN PAVING BLOCK
Authors: Mulyati Mulyati
Published: July 2023

Penelitian ini menggunakan abu batu dan split sebagai bahan campuran dalam pembuatan paving block. Tujuan dari penelitian ini adalah untuk mengetahui nilai kuat tekan dan penyerapan air paving block dari penggunaan abu batu dan split.  Bahan campuran pembutan paving block sebagai pembanding digunakan semen dan pasir dengan komposisi 1:8, dan penggunaan semen, abu batu, split dengan komposisi 1:6:4, 1:8:4, 1:8:8.  Pembuatan benda uji paving block menggunakan mesin dengan ukuran cetakan 21 cm x 10,5 cm x 6 cm.  Pengujian kuat tekan dan penyerapan air paving block dilakukan pada umur 28 hari.  Hasil penelitian menggunakan pasir serta abu batu dan split dalam pembuatan paving block dengan perbandingan 1:8, dan 1:6:4, 1:8:4, 1:8:8, diperoleh kuat tekan rata-rata berturut-turut sebesar 5,29 dan 5,07 MPa, 7,99 MPa, 4,51 MPa, dan untuk penyerapan air rata-rata berturut-turut sebesar 10,64% dan 7,14%, 9,70%, 9,87%.
PERANCANGAN DAN PEMBUATAN ALAT PEMOTONG SERAT NANAS MENGGUNAKAN SISTEM PNEUMATIK
Authors: Eka Putra Ismet , Hendra Boy
Published: July 2023

Pembuatan sebuah alat yang dapat membantu memotong bahan baku material komposit serat alam (serat nenas) secara otomatis, dapat meningkatkan efesiensi dan mempermudah dalam pemotongan, baik dari segi kecepatan, tenaga, jumlah produksi, hingga faktor keamanan mesin pemotong tersebut. Hasil dari pengujian menunjukkan bahwa menggunakan alat pemotong serat nenas sistem pneumatik dapat memotong serat dengan cepat untuk memenuhi kebutuhan akan serat nenas sebagai bahan baku material komposit dan juga menghindari keadaan dimana ketika memotong serat secara manual akan terasa lelah karena kinerja yang semakin menurun dan itu sangat mempengaruhi tingkat keamanan yang dapat membahayakan dalam proses pemotongan. Perbedaan tekanan yang diberikan pada sistem bervariasi 2, 3, 4, 5 bar dengan hasil pemotongan yang bervariasi yaitu 61, 100, 113, dan 150 pemotongan setiap 60 detiknya. Alat pemotong serat nanas sistem pneumatik ini mampu memotong dalam waktu 0.41 detik dengan tekanan udara 5 bar.
ANALISIS PERCERAIAN PADA MASA PANDEMI CORONA VIRUS DISEASE 19 DI PENGADILAN AGAMA KABUPATEN SRAGEN
Authors: Mustopa Fendi Bintang
Published: July 2023

Perceraian adalah ujian pernikahan. Pasangan suami istri bisa mengalaminya di mana saja. Apalagi di masa pandemi Covid-19, nampaknya banyak kasus perceraian dengan topik berbeda di berbagai wilayah Indonesia, khususnya di Kabupaten Sragen Jawa Tengah. Peneliti tertarik dengan riwayat perceraian di masa pandemi Covid-19 yang didaftarkan di Pengadilan Negeri Sragen. Penelitian ini menjawab tiga pertanyaan, yaitu 1) bagaimana proses perceraian pada masa pandemi Corona Virus Disease-19 di Pengadilan Agama Kabupaten Sragen, dan 2) apa saja faktor-faktor yang mempengaruhi perceraian pada masa pandemi Corona Virus Disease-19? Pengadilan Agama Kabupaten Sragen, 3) Bagaimana solusi untuk menekan angka perceraian selama pandemi Corona Virus disease 19 di Pengadilan Agama Kabupaten Sragen? Penelitian ini menggunakan metode kualitatif. Pendekatan kualitatif ini dirancang untuk memahami fenomena-fenomena yang dialami peserta penelitian selama pandemi COVID-19 di Pengadilan Agama Kabupaten Sragen, seperti perilaku, persepsi, tindakan, dan lain-lain terkait analisis perceraian. Berdasarkan hasil penelitian, dapat disimpulkan bahwa selama masa pandemi Covid-19, terdapat dua prosedur, offline dan online, untuk proses perceraian di Pengadilan Agama Kabupaten Sragen. Faktor perceraian yang muncul di masa pandemi Covid-19 disebabkan oleh berbagai masalah, antara lain perzinahan, mabuk, perjudian, penjara, konflik, dan persoalan ekonomi, tetapi yang paling umum adalah masalah ekonomi. Solusi Pengadilan Agama Bupati Sragen untuk menekan angka perceraian di masa pandemi COVID-19 antara lain mengoptimalkan peran BP4 serta bekerja sama dengan pemerintah daerah atau otoritas lain yang mempunyai visi yang sama.
MODEL SISTEM PERADILAN DALAM MEWUJUDKAN KEPASTIAN HUKUM DAN KEADILAN DI INDONESIA
Authors: Safira Mirza Elmy
Published: July 2023

Fungsi sistem peradilan pidana untuk menanggulangi kejahatan sangat diperlukan dalam penegakan hukum. Akan tetapi sistem yang ada sekarang belum berfungsi secara optimal. Hal itu dikarenakan banyak hal-hal yang belum sesuai dengan kondisi masyarakat. Kondisi masyarakat terus berkembang, memaksa hukum untuk berkembang pula, menyesuaikan dengan keinginan masyarakat agar tetap menjaga rasa keadilan dan kepastian hukum yang selama ini diinginkan. Jenis penelitian ini  menggunakan metode penelitian kualitatif. Hasil penelitian ini menyarankan sesungguhnya sistem peradilan pidana yang ideal seharusnya mencakup tiga nilai pokok hukum: keadilan, kepastian hukum, dan kenyamanan. Baik secara teoritis ataupun praktis, tidak mudah untuk mengimplementasikan ketiga nilai dasar tersebut secara harmonis  Agar hukum dapat berfungsi dengan optimal dan sesuai dengan keinginan masyarakat, maka tentu sistem yang ada sekarang harus diperbaharui dengan sistem yang sesuai dengan kondisi masyarakat. Sistem peradilan pidana merupakan salah satu sistem yang harus diperbaharui, mengingat fungsi dan kewenangannya yang sentral, yaitu memberikan kepastian hukum dan keadilan masyarakat. Sistem peradilan pidana adalah instrumen hukum pemberantasan kejahatan, ia harus menunjukkan keserasian dan keterkaitan antar subsistem, membentuk satu kesatuan keterkaitan yang menghadirkan rasa keadilan dan kepastian hukum bagi para pencari keadilan.
Palatal bone thickness for mini-implant insertion in different vertical growth patterns: a systematic review
Authors: Puente de la Vega Mendigure Nguyen , Bashualdo Candia Denisse Rosario , Valer Jáuregui Valery
Published: July 2023

Introduction: The purpose of this systematic review was to identify, evaluate, and provide information about palatal bone thickness in different vertical growth patterns for the placement of orthodontic anchorage devices. Methods: We performed a systematic review of the published data in Medline via PubMed, Web of Science, Cochrane Library, and Scopus from January 2000 to August 2022 using eligibility criteria. Data collection analysis and data extraction were performed independently by three reviewers. Sensitivity analyses were performed with the Cochrane risk of bias tool and the ROBINS-I tool was used for non-randomized studies. Results: A total of 343 articles were identified. The inclusion criteria included palatal bone thickness and vertical facial growth. However, both variables were found in 4 studies and only 2 had a control group. The different studies evaluated palatal bone thickness according to sex (male 14.1 mm; female 9.68 mm) and vertical malocclusion (normal 2.2 -12.6 mm; open bite 1.9 -13.2mm) with heterogeneous results. Likewise, the vertical growth pattern with a low angle (9.39 mm) was greater than the normal (8.55 mm) and high angle (7.53 mm). Conclusions: Palatal bone thickness varies according to different vertical growth patterns, with the greatest thickness being found near the incisive foramen in hypodivergent individuals.
The Accuration of Progesterone Test Kits for Early Diagnosis in Ettawa Cross Goat
Authors: Melia Juli , Putra Desriwan Angga , Syafruddin Syafruddin , Siregar Tongku Nizwan , Ferasyi Teuku Reza , Sari Wahyu Eka
Published: July 2023

This research aimed to determine the accuracy of the progesterone test kit for milk and blood as means of early pregnancy diagnosis in Ettawa cross goats (PE). Five lactating PE goats were used in this study and were synchronized with PGF2α intramuscularly. The result is that all goats showed a sigh of estrus. Four goats were mated naturally, while one other was not mated. The determination of day-0 was when the females were standing heat. Early pregnancy diagnosis using dairy cow test strips performed 18-22 days after mating or post-estrus. The accuracy of the diagnosis was confirmed by ultrasound examination on day 35 after mating/post estrus. Diagnosis using the milk progesterone kit showed negative results for five days of examination in all goats, whereas using the blood progesterone kit showed positive results in four goats. When confirmed, using ultrasound showed one goat was diagnosed as not pregnant, and four other goats were diagnosed pregnant. It can be concluded that the use of progesterone dairy cow pregnancy test strip kits is effectively used to diagnose early pregnancy in PE goats with high accuracy in blood samples (100%) and low accuracy in milk samples (20%).
The Histomorphometry of The Small Intestine on Turkey (Meleagris Gallopavo) at Different Age Levels
Authors: Masyitha Dian , Armita Nurul , Akmal Muslim , Zainuddin Zainuddin , Rahmi Erdiansyah , Jalaluddin M. , Salim M. Nur , Sabri Mustafa , Iskandar Cut Dahlia , Zulkifli Baidillah
Published: July 2023

This study aims to determine the histomorphometry of the small intestine of turkeys (Meleagris gallopavo) at different age levels. This study used a completely randomized design. This study used 18 male turkeys, divided into 3 groups of ages 8, 16, and 24 weeks, each group comprising 6 turkeys. The necropsied turkey's small intestine was taken into histological preparations and stained with haematoxylin-eosin (HE). The results showed that the histological picture of the small intestine layer of turkeys at different age levels consisted of four layers: tunica mucosa, tunica submucosa, tunica muscular, and tunica serosa. Histomorphometrically, there was an increase in the thickness of all layers of the small intestine from 8 and 16 weeks of age (P0.05), and the height of the intestinal villi increased in all parts of the small intestine at 8, 16 and 24 weeks of age (P0.05 ). In conclusion, with histomorphometric measurements, it can be seen that there are differences in the three age groups.
The Application of Asam Sunti as Feed Additives for Bacterial Infection Control of Edwardsiella tarda
Authors: Efendi Zulhan , Suhartono Suhartono , Firdus Firdus
Published: July 2023

Cultivating catfish is one of the businesses that are of interest in Indonesia. The success of cultivation begins to be determined by the provision of seeds. Healthy seeds lead to a high survival rate, and unhealthy seeds due to disease will cause a high mortality rate, causing losses in the cultivation business. Bacterial infectious diseases Edwardsiella tarda can cause a low survival rate of catfish seeds, and even the death rate can reach 100%. This study aimed to evaluate and determine the best dosage of asam sunti in feed to control the pathogenic bacteria E. tarda infection in catfish. Asam sunti was given through feed with different treatment doses, with concentrate 0% (K), 0.5% (P1), 1% (P2), 2% (P3), and 4% (P4) for 14 days after being infected with pathogenic bacteria. The effect of giving asam sunti was measured by observing the survival of fish. The results showed that the administration of asam sunti could control the bacterial diseases of E. tarda bacteria sequentially control (K) is 0%, (P1) is 16.67%, (P2) 40%, (P3) 66.67%, and (P4) 90%. From these results, it can be concluded that the 4% asam sunti dose is the best dose for the survival of catfish seeds, with the survival rate for pathogenic bacteria E. tarda at 90%.
Histopathological Lesions in Gastric and Duodenum Organs in Dogs (Canis familaris) Suspected of Escherichia coli Infection
Authors: Nussa Olan Rahayu Puji Astuti , Kuswantos Arya Surya , Wardhani Lailia Dwi Kusuma
Published: July 2023

It is widely known that Escherichia coli (E. coli) can infect the gastrointestinal tract of various animals and damage some tissue organs. Through histopathological examination of the gastric and duodenal organs can provide valuable information relating to how the E. coli infection impacts the animal. On February 6th, 2023, euthanasia and necropsy of a dog belonging to Mr. Kamo Agil were carried out, which is located at Jl. Meyjend Sungkono, Gresik. Anamnesa is known to be a male dog, age ±1.5 months, body weight 0.6 kg. One kennel is filled with 9 dogs, dirty cage, in the house is not unused, damp and close to the warehouse area and furniture office. The dog has never been vaccinated and has not been dewormed. Temporary diagnosis of dogs with colibacillosis. Examination of pathology is carried out macroscopically and microscopically. Microbiological examination with isolation of escherichia coli bacteria and eosin methylene blue agar media. Followed by Gram staining and biochemical tests. The results of anatomical pathology examination showed that the dog had gastroenteritis. The results of microbiological examination showed that isolated and identified escherichia coli from duodenal organs. Based on the results of examinations showed that the dog had gastroenteritis caused by caused by escherichia coli infection.
A Mini Review: Endophytic Bacteria from Plants and Their Potential to Produce Bioactive Compounds for Veterinary Applications
Authors: Sari Wahyu Eka , Vanda Henni , Hambal Muhammad , Zulkifli Baidillah , Zamzami Rumi Sahara , Azhari Azhari , Qomariah Annisa Nurul
Published: July 2023

Infectious diseases caused by microorganisms are still a problem in Indonesia, both humans and animals. The problem of bacterial resistance to antibiotics has an impact on increasing morbidity, mortality, and health care. The problem of bacterial resistance to antibiotics has also been found in livestock, which can threaten human health. This situation has led many researchers to search for new bioactive compounds as alternative antibiotic candidates to fight multidrug resistant bacteria such as Mycobacterium tuberculosis, Staphylococcus spp., and Streptococcus spp. This study aimed to discuss and determine the development of endophytic bacteria isolated from several plants so we can know the role of endophytic bacteria in producing bioactive compounds, especially for application in veterinary medicine. Endophytic bacteria provide great potential to produce various new bioactive compounds obtained from secondary metabolite compounds from their host. Plants are one of the hosts for endophytic bacteria. Bioactive compounds from endophytic bacteria are widely used in health and veterinary applications as antibacterial, antiviral, anti-inflammatory, and antioxidant. This shows that endophytic bacteria can be a promising source of new antibiotics to overcome the problem of pathogenic bacterial resistance and disease in the world of animal health which also threatens human health. This review discusses some aspects in the phytochemistry of endophytic bacteria producing bioactive compounds and its application in veterinary medicine.
Assessing for prenatal risk factors associated with infant neurologic morbidity using a multivariate analysis
Authors: Jain Samhita , Oltman Scott , Rogers Elizabeth , Ryckman Kelli , Petersen Mark , Baer Rebecca , Rand Larry , Piao Xianhua , Jelliffe-Pawlowski Laura
Published: July 2023

Objective
To characterize the biochemical and demographic profiles of pregnant people with maternal immune activation (MIA) and identify the prenatal characteristics associated with neurologic morbidity in offspring.
Study design:
This was a population-based retrospective cohort study of mother-infant dyads with births between 2009–2010 in California. Multivariable logistic regression was used to build a MIA vulnerability profile including mid-pregnancy biochemical markers and maternal demographic characteristics, and its relationship with infant neurologic morbidity was examined.
Results
Of the 602 mother-infant dyads, 80 mothers and 61 infants had diagnoses suggestive of MIA and neurologic morbidity, respectively. Our model, including two demographic and seven biochemical characteristics, identified mothers with MIA with good performance (AUC:0.814; 95%CI:0.7–0.8). Three demographic and five inflammatory markers together identified 80% of infants with neurological morbidity (AUC:0.802, 95%CI:0.7–0.8).
Conclusion
Inflammatory environment in mothers with pre-existing risk factors like obesity, poverty and prematurity renders offspring more susceptible to neurologic morbidities.
Research on the co-adsorption of As(V) and Cd(II) by Mg/Al/Fe-CLDH
Authors: Chen Donghui , Li Ruiyue , Nan Fangming , Li Hong , Huang Ping , Zhan Wei
Published: July 2023

Arsenic and cadmium are often co-existing in non-ferrous smelting wastewater, and the physicochemical properties such as surface charge, ionic morphology and redox activity are different between arsenic and cadmium, making the simultaneous removal of arsenic and cadmium challenging. In this study, an efficient and stable composite material of Fe modified Mg/Al-LDH was used for arsenic and cadmium co-adsorption experiments. The following conclusions were drawn: As (V) and Cd(II) were inserted into the interlayer region of the hydrotalcite, which As(V) was more favorably exchanged into the interlayer, as the inserted Cd(II) combined with the interlayer CO32− to generate a precipitate; The negatively charged As(V) served as a shield to balance the electric forces between Cd(II), and the coordinated deprotonated As(V) acted as an anionic bridge to enhance the adsorption of Cd(II). The structure-activity relationship between material structure and synchronous removal of arsenic and cadmium was clarified, and the mechanism of synchronous removal was revealed, which provided technical guidance for synchronous removal of arsenic and cadmium from non-ferrous metal smelting wastewater.
On the discrete Safronov-Dubovskii coagulation equation: well-posedness, mass-conservation and asymptotic behaviour
Authors: Ali Mashkoor , Rai Pooja , Giri Ankik Kumar
Published: July 2023

The global existence of mass-conserving weak solutions to the Safronov- Dubovskii coagulation equation is shown for the coagulation kernels satisfying at most linear growth for large sizes. In contrast to previous works, the proof mainly relies on the de la Vall ́ee-Poussin theorem [8, Theorem 7.1.6], which only requires the finiteness of the first moment of the initial condition. By showing the necessary regularity of solutions, it is shown that the weak solutions con- structed herein are indeed classical solutions. Under additional restrictions on the initial data, the uniqueness of solutions is also shown. Finally, the continu- ous dependence on the initial data and the large-time behaviour of solutions are also addressed.
Mathematics Subject Classification(2020). Primary: 34A12, 34K30, 47J35; Secondary: 46B50.
A Parametric Study on the Analysis of Thermosolutal Convection for Magneto-Hydrodynamics Dependent Viscous Fluid
Authors: Bano Sadia , Saleem S. , Alam M. Kamran , Khan Aamir
Published: July 2023

This article explores the influence of joule heating and viscous dissipation on the unsteady three-dimensional squeezing flow of Newtonian fluid. The flow in a rotating channel with a lower stretched permeable wall is observed under the influence of a uniform magnetic field. The impact of thermal radiation is also considered. The effects of mass and heat transfer on the squeezing flow of Newtonian fluids are observed and modelled using the four fundamental governing equations of fluid flow: the mass equation, momentum equation, concentration equation, and energy equation. Using the appropriate similarity transformations, the resultant non-linear partial differential equations are then transformed into ordinary differential equations. The analytical strategy is developed using the homotopy analysis method to obtain the series solution. The influence of several physical parameters, including the squeezing parameter, the suction parameter, the magnetic number, the rotation parameter, the Eckert number, the Prandtl number, the Dufour number, the Soret number, the radiation parameter , and the Schmidt number, on the velocity profile, energy, and concentration are also discussed with the help of graphics and thorough discussion. Additionally, it is observed that enhancing the top plate’s squeezing impact causes a rise in the velocity profile while lowering the temperature and concentration distribution. It is also found that for the velocity field, increasing the magnetic number shows a decrease in the value of the velocity field along the y-and z-axis, whereas the velocity field along the x-axis exhibits dual behavior, such that it initially falls as the magnetic number intensifies but starts to rise in the upper region of the channel. The impact of the Dufour, Soret, and Eckert numbers on temperature and concentration distribution is also studied. It is found that while these numbers directly affect the temperature distribution, the mass distribution follows the opposite trend. Also, it is noticed that the thermal radiation parameter is an increasing function of temperature and mass distribution. Further, graphs and tables are presented to illustrate an error analysis.
Lymphopenia in Hodgkin Lymphoma is the consequence the disease progression or the cause of the disease progression?
Authors: Khalil Hasan , Hussein Firas
Published: July 2023

Classical Hodgkin Lymphoma cHL has many distinctive characters, which could make it the most suitable cancer to investigate the precise role of the immune system in tumor incidence and progression. There are two hypotheses to explain the relationship between lymphopenia and poor prognosis. Knowing the mechanism that links lymphopenia with disease progression could have very important clinical applications. This study includes 84 classical Hodgkin lymphoma patients. Patients were followed up for 2 years. This period is considered sufficient for assessing progression of Hodgkin lymphoma. Lymphopenia was associated with the presence of B symptoms, elevated LDH values, and higher eosinophil counts. There was a significant difference in progression free survival between high ALC group and low ALC group, and we find that Attributable Risk (AR) was equal to 35.7%. This study supports the hypothesis that the lymphopenia is caused by progression of the disease, mostly by inducing a defect in the secretion of cytokines, which causes an increase in lymphocyte death. We recommend Conducting clinical trials to investigate the effectiveness of NSAIDs or anti-cytokines as effective drugs in Hodgkin's lymphoma.