bluuebunny/crossref_metadata_2025 huggingface dataset:
Pelaksanaan Supervisi Pengajaran dalam Meningkatkan Profesionalisme Guru (Studi MI Ma'arif NU 01 Blater, Kalimanah, Purbalingga)
Authors: Rohman Mujibur , Witdianti Yeni
Published: June 2023

Penelitian ini dilatarbelakangi oleh rendahnya nilai UKG 2015 dan 2016 dengan nilai akumulasi rata-rata 50, hal ini mendeskripsikan belum terpenuhinya indikator guru profesional, apalagi mengarah kepada profesionalisme guru. Problematika tersebut perlu segera dibenahi salah satunya dengan pelaksanaan supervisi pengajaran, dimana supervisi merupakan salah satu unsur penentu keberhasilan pelaksana pembelajaran bermutu. Diharapkan dengan pelaksanaan supervisi guru akan semakin meningkat nilai profesionalismenya dan mampu secara mandiri mewujudkan guru profesional. Data pada penelitian ini dikumpulkan dengan wawancara, observasi dan dokumentasi kemudian dianalisis menggunakan teknik analisis data model Miles and Huberman. Hasil penelitian menunjukkan bahwa ada tiga langkah yang dilakukan dalam melaksanakan supervisi pengajaran dalam meningkatkan profeisonalisme Guru di MI. Berdasarkan paparan dan interpretasi data yang ada serta mengacu pada landasan teori yang berkaitan dengan pelaksanaan supervisi pengajaran dalam meningkatkan profesionalisme Guru MI Ma'arif NU 01 Blater Kalimanah Purbalingga dalam penelitian ini maka dapat diambil beberapa kesimpulan bahwa Pelaksanaan supervisi pengajaran dalam meningkatkan profesionalisme Guru di MI Ma'arif NU 01 Blater Kalimanah Purbalingga dilaksanakan melalui tiga tahap yaitu perencanaan, pelaksanaan, dan evaluasi. Pelaksanaan supervisi pengajaran dilakukan dengan mengambil pendekatan Humanistik dan Ilmiah, selain itu supervisi dilakukan dengan multi teknik yaitu kunjungan dan observasi kelas, pembicaraan/ pertemuan indiviu, dan diskusi kelompok. Dan Supervisi pengajaran dalam meningkatkan profeisonalisme di MI Ma'arif NU 01 Blater Kalimanah Purbalingga adalah mampu meningkatkan profesionalisme guru pada kompeteni pedagogik, kepribadian, professional, dan kompetensi sosial.
KORELASI ANTARA MINAT BELAJAR DAN PERAN ORANG TUA DENGAN KEMAMPUAN MEMBACA KRITIS SISWA KELAS V MI AL-ISLAMIYAH DEPOK
Authors: Fauziyah Lisa
Published: June 2023

Penelitian ini bertujuan untuk (1) mengetahui hubungan antara minat belajar dengan kemampuan membaca kritis siswa kelas V MI Al-islamiyah Depok. (2) untuk mengetahui hubungan antara peran orang tua dengan kemampuan membaca kritis siswa. (3) untuk mengetahui hubungan antara minat belajar dan peran orang tua dengan kemampuan membaca kritis siswa kelas V MI Al-islamiyah Depok. Metode yang digunakan adalah metode korelasional. Populasi yang digunakan adalah siswa kelas V A dan B yang berjumlah 39 siswa. Teknik pengumpulan data dengan menggunakan kuesioner dan tes. Teknik analisis data menggunakan teknik korelasi product moment dan analisis korelasi berganda. Hasil penelitian ini menunjukkan bahwa (1) terdapat hubungan yang positif dan signifikan antara minat belajar dengan kemampuan membaca kritis, di mana   sebesar 0,610, sedangkan  dengan N= 39 pada taraf signifikansi 5% sebesar 0,316. (2) terdapat hubungan yang positif dan signifikan antara peran orang tua dengan kemampuan membaca kritis siswa, di mana  sebesar 0,708, sedangkan  dengan N= 39 pada taraf signifikansi 5% sebesar 0,316. (3) terdapat hubungan yang positif dan signifikan antara minat belajar dan peran orang tua dengan kemampuan membaca kritis siswa, di mana  sebesar 0,783, sedangkan  dengan N= 39 pada taraf signifikansi 5% sebesar 0,316.
PENINGKATAN KEMAMPUAN MENULIS KARANGAN NARASI MELALUI MODEL RADEC (Penelitian Tindakan Di Kelas VI SDN Srijaya 04 Tambun Utara Bekasi)
Authors: Endang lestari Catur
Published: June 2023

Banyaknya siswa yang belum mendapatkan nilai KKM pada pembelajaran menulis cerita narasi menjadi latar belakang penelitian ini. Keterbatasan guru dalam menerapkan metode pembelajaran yang tepat untuk siswa dikelas merupakan masalah pokok dalam penelitian ini. Maka dari itu penelitian ini bertujuan untuk mengetahui proses peningkatan keterampilan menulis karangan narasi melalui pembelajaran radec pada siswa kelas VI SDN Srijaya 04 Tambun Utara Bekasi Populasi penelitian ini adalah peserta didik kelas VI yang berjumlah 36 orang. Metode yang digunakan dalam penelitian ini adalah metode Penelitian Tindakan Kelas (PTK). Dalam penelitian ini apabila siswa mendapatkan nilai KKM yaitu 70 pada setiap aspek penilaian dalam menulis karangan narasi maka penelitian dicukupkan pada siklus tersebut. Melalui model pembelajaran RADEC, terdapat peningkatan kemampuan menulis karangan narasi siswa kelas VI SDN Srijaya 04 Tambun Utara Kabupaten Bekasi, hal ini dapat dilihat dari hasil penelitian di Prasiklus sebesar 16.06% dengan jumlah rata- rata kelas sebesar 59.31, mengalami peningkatan pada siklus I sebesar 33.33% dengan jumlah rata- rata kelas sebesar 73.14, dan tambah meningkat di siklus II menjadi 75%, dengan jumlah rata- rata kelas sebesar 82.70. Dengan demikian karena dari semua aspek penilaian menulis narasi nilai siswa memenuhi standar ketuntasan minimal (KKM).

 

The number of students who have not gotten the KKM score in learning to write narrative stories is the background of this research. The limitation of teachers in applying appropriate learning methods for students in the classroom is the main problem in this study. Therefore, this study aims to determine the process of improving narrative essay writing skills through radec learning in class VI students at SDN Srijaya 04 Tambun Utara Bekasi. The population of this study was class VI students, totaling 36 people. The method used in this research is Classroom Action Research (CAR). Through the RADEC learning model, there is an increase in the ability to write narrative essays for sixth grade students at SDN Srijaya 04 Tambun Utara, Bekasi Regency, this can be seen from the results of research in Pre-cycle by 16.06% with an average class number of 59.31, an increase in the first cycle of 33.33 % with an average number of classes of 73.14, and increased in the second cycle to 75%, with an average number of classes of 82.70. Thus, because of all aspects of the assessment of writing narratives, students' scores meet the minimum completeness standard (KKM).
Upaya Peningkatan Motivasi Belajar Peserta didik Dengan Penggunaan Video TikTok Pada Mata Pelajaran IPA
Authors: Hartini Puji
Published: June 2023

Kondisi pandemi Covid-19 memberikan dampak yang luar biasa terhadap pola belajar dan motivasi belajar peserta didik. Kemerosotan motivasi belajar peserta didik  nampak semakin meningkat sejak awal terjadinya pandemi dan diberlakukannya kebijakan Pembelajaran Jarak Jauh (PJJ), hal ini terlihat pada partisipasi belajar peserta didik  yang semakin sedikit bahkan mencapai 5/23 peserta didik  yang ikut berperan aktif dalam pembelajaran daring, 17/23 peserta didik  tidak mengikuti pembelajaran dengan berbagai latar belakang yang mempengaruhi. Tujuan penelitian ini adalah untuk mendeskripsikan motivasi belajar peserta didik  pada mata pelajaran IPA di SMP Makna Bakti dengan pemanfaatan video Tiktok pada materi system reproduksi. Jenis penelitian yang digunakan adalah penelitian kualitatif deskriptif dengan teknik pengambilan data menggunakan analisis dokumen dan wawancara. Subjek penelitian ini adalah 23 peserta didik pada kelas 9.4 di SMP Makna Bakti Jakarta. Hasil penelitian berdasarkan analisis dokumen menunjukan bahwa ada peningkatan motivasi peserta didik  dilihat dari partisipasi peserta didik  dalam mengikuti pembelajaran IPA secara daring mencapai angka 100% dari keseluruhan peserta didik dibandingkan dengan tahun ajaran sebelumnya, sedangkan hasil wawancara menunjukan adanya ketertarikan yang luar biasa dari peserta didik  pada video Tiktok yang disajikan serta memicu motivasi belajar IPA dilihat dari partisipasi peserta didik dalam mengumpulkan tugas belajar pada Google Classroom. Hasil tersebut dapat dijadikan pertimbangan oleh guru dalam menyajikan materi dengan kemasan menarik yang disesuaikan dengan kondisi uptodate peserta didik
Evaluasi Program Peningkatan Kompetensi Profesional Guru Matematika MTs Negeri Pada Bidang Pendidikan Madrasah Kantor Wilayah Kementerian Agama Provinsi Banten
Authors: Habudin Habudin , Setiadi Hari , A. Ghani Abdul Rahman
Published: June 2023

Abstrak. Penelitian evaluasi ini bertujuan untuk mengetahui efektivitas pelaksanaan Program Peningkatan Kompetensi Profesional Guru Matematika MTs Negeri Provinsi Banten. Evaluasi ini menggunakan model CIPP (Context, Input, Process, and Product). Metode penelitian yang digunakan adalah metode kualitatif deskriptif. Instrument yang digunakan studi dokumentasi, wawancara, dan observasi. Sebagai subjek penelitian yaitu Kepala Bidang Pendidikan Madrasah, Kepala Seksi (Kurikulum. Guru dan Tenaga Pendidikan, Kesiswaan), Kepala MTs Negeri dan guru matematika. Temuan evaluasi ini menyimpulkan Program Peningkatan Kompetensi Profesional guru Matematika MTs Negeri yang dilaksanakan oleh Bidang Pendidikan Madrasah dalam kategori moderat (sedang) terhadap peningkatan kompetensi profesional guru pada indikator penguasaan materi, metode mengajar, kemampuan menyusun Rencana Pelaksanaan Pembelajaran (RPP), dan Lembar Kerja Siswa (LKS). Dari sisi aktivitas belajar siswa mengalami peningkatan. Namun terhadap pencapaian hasil belajar siswa pada nilai Ujian Nasional (UN) mata pelajaran matematika tahun 2016-2018 belum meningkat secara signifikan.
EVALUASI PROGRAM PENINGKATAN KESEJAHTERAAN TENAGA PENDIDIK NON PNS MELALUI KONTRAK KERJA INDIVIDU DI SEKOLAH DASAR NEGERI KECAMATAN JOHAR BARU JAKARTA PUSAT
Authors: Rakhma Siti eka , Diana Erlin , Purwanto Sigid Edy
Published: June 2023

: Tesis ini bertujuan untuk mengkaji faktor-faktor keberhasilan dan kegagalan dalamprogram peningkatan kesejahteraan tenaga pendidik Non PNS di Sekolah Dasar NegeriKecamatan Johar Baru Jakarta Pusat. Metode evaluasi menggunakan model evaluasi Stake’sCoutenance model. Teknik pengumpulan data melalui wawancara, studi dokumentasi, dankuesioner. Teknik analisis data dalam evaluasi ini menggunakan pendekatan kuantitatif dankualitatif. Tahapan analisis data meliputi reduksi data, penyajian data dan penarikankesimpulan. Hasil evaluasi menyimpulkan bahwa: (1). Perencanaan program peningkatankesejahteraan tenaga pendidik Non PNS melalui kontrak kerja individu di Sekolah Dasar NegeriKecamatan Johar Baru Jakarta Pusat termasuk ke dalam kategori sangat baik. (2). Pelaksanaanprogram peningkatan kesejahteraan tenaga pendidik Non PNS melalui kontrak kerja individudi Sekolah Dasar Negeri Kecamatan Johar Baru Jakarta Pusat termasuk ke dalam kategoricukup. (3). Dampak dari hasil penyelenggaraan program peningkatan kesejahteraan tenagapendidik Non PNS melalui kontrak kerja individu di Sekolah Dasar Negeri Kecamatan JoharBaru Jakarta Pusat termasuk ke dalam kategori baik.
PENGARUH STRATEGI PEMBELAJARAN DAN GAYA KOGNITIF TERHADAP HASIL BELAJAR ADMINISTRASI INFRASTRUKTUR JARINGAN SISWA KELAS XI & XII JURUSAN TEKNIK KOMPUTER DAN JARINGAN DI SMK MUHAMMADIYAH 1 JAKARTA
Authors: Muttaqin Ikhwan
Published: June 2023

Penelitian ini bertujuan untuk menganalisis pengaruh strategi pembelajaran dan gaya kognitif terhadap hasil belajar administrasi infrastruktur jaringan siswa kelas XI dan XII Jurusan Teknik Komputer dan Jaringan SMK Muhammadiyah 1 Jakarta. Sampel dalam penlitian ini adalah 102 orang siswa kelas XI dan XII Jurusan Teknik Komputer dan Jaringan di SMK Muhammadiyah 1 Jakarta. Data penelitian berupa soal hasil belajar administrasi infrastruktur jaringan, strategi pembelajaran dan gaya kognitif menggunakan kuesioner. Metode yang digunakan dalam penelitian ini adalah metode survey dengan teknik analisis jalur (Path Analysis). Berdasarkan hasil penelitian diperoleh kesimpulan bahwa (1) 31 = 0,207, thitung = 1,767 dan p-value = 0,080/2 = 0,004 < 0,05 yang berarti “bahwa terdapat pengaruh langsung positif strategi pembelajaran (X1) terhadap hasil belajar administrasi infrastruktur jaringan (X3)” diterima atau teruji. (2) 21 = 0,604, thitung = 1,767 dan p-value = 0,084/2 = 0,042 < 0,05 yang berartji “bahwa terdapat pengaruh langsung positif gaya kognitif (X2) terhadap hasil belajar administrasi infrastruktur jaringan (X3)” diterima atau teruji. (3) 32 = 0,205, thitung = 1,767 dan p-value = 0,000 < 0,05 yang berarti “bahwa terdapat pengaruh langsung positif strategi pembelajaran (X1) terhadap gaya kognitif (X2)”. diterima atau teruji.

 

This study aims to analyze the effect of learning strategies, and cognitive styles on learning outcomes of network infrastructure administration for class XI and XII students of the Department of Computer Engineering and Networks at SMK Muhammadiyah 1 Jakarta. The sample in this study were 102 students of class XI and XII of the Computer and Network Engineering Department at SMK Muhammadiyah 1 Jakarta. Research data in the form of questions about the learning outcomes of network infrastructure administration, learning strategies and cognitive styles using a questionnaire. The method used in this research is a survey method with path analysis techniques. Based on the research results, it is concluded that (1) 31 = 0,207, thitung = 1,767 dan p-value = 0,080/2 = 0,004 < 0,05 which means "that there is a positive direct effect of learning strategies (X1) on learning outcomes of network infrastructure administration (X3)" is accepted or tested. (2) 21 = 0,604, thitung = 1,767 dan p-value = 0,084/2 = 0,042 < 0,05 which means "that there is a direct positive effect of cognitive style (X2) on learning outcomes of network infrastructure administration (X3)" is accepted or tested. (3) 32 = 0,205, thitung = 1,767 dan p-value = 0,000 < 0,05 which means "that there is a direct positive effect of learning strategies (X1) on cognitive style (X2)". accepted or tested
Delegated rulemaking by the Central Election Commission of Russia
Authors: Lopatin Anton I. , Malkarov Akhmat I.
Published: June 2023

The issue of systematization of legislation is quite relevant and the task of solving it is part of the state legal policy. At the same time, the solution of the above problem is impossible in isolation from the study of a number of issues affecting both the theoretical and practical aspects of lawmaking and law enforcement activities. For example, one of these key issues is the hierarchy of normative legal acts, including those issued by state bodies of the Russian Federation. The issue of standard-setting powers of certain state bodies is quite controversial. The article investigates the practice of implementing the institution of delegated legislation in the Russian Federation on the example of the practice of delegated rulemaking of the Central Election Commission (CEC) of Russia. The study consistently considers issues of the constitutional and legal status of the Central Election Commission of the Russian Federation, including regulatory powers related to it. Various points of view relevant to the scientific community on this issue have been outlined. At the same time, the authors proceed from understanding that rulemaking powers are integral attribute properties of the constitutional and legal status of the CEC of Russia. Based on the tasks set, the issues of the forms of regulatory legal acts of the CEC of Russia as sources of constitutional law are investigated. The authors indicate the need to diversify acts issued by the CEC of Russia within the framework of exercising its direct powers, with acts issued within the framework of delegated rulemaking. In this regard, special attention is paid to legal regulation regarding the new electoral procedure - remote electronic voting. Given the enormous importance for the state and its obligation to ensure transparency and legitimacy in electoral procedures, it is clear that their legislative regulation should be adequate to the level of tasks to be solved. At the same time, the authors believe that acts of delegated rulemaking, subject to certain restrictions and requirements, meet the specified characteristics. The methodological basis of the study includes the dialectical method, methods of analysis, synthesis and analogy, as well as formal-legal and comparative legal methods.
Pemanfaatan Limbah Plastik Sebagai Media Pembelajaran Untuk Meningkatkan Hasil Belajar Siswa Kelas X SMA N 6 Madiun
Authors: Rahmadani Desi Lia Nur , Diamay Aza Ayunda , Anggoro Dwi , Awalashari Bregas Dede , Pujiati Pujiati
Published: June 2023

The processing of waste and used goods has become vital in environmental conservation efforts. One of the efforts in waste processing is to carry out the recycling process to serve as learning media. The problem discussed in this study is regarding the development of learning media from waste (virus props) to improve student learning outcomes at SMA Negeri 6 Madiun. The research method used is this type of research in the form of application research using the One-Group Pretest-Posttest Design to compare the results of the pretest and post-test. The pretest stage is carried out when students have not been given treatment while the posttest stage is carried out when students have been given treatment. The implementation was carried out in two meetings with 71 class X students of SMA Negeri 6 Madiun. Based on the results of data analysis that has been carried out in research on pre-service PPG students at the University of PGRI Madiun, it was found that the variable Entrepreneurship Education, Self-Efficacy, has a positive and significant effect as the creation of learning media significantly increases the learning outcomes of class X students. This project activity is about how to manage and handling inorganic waste in the school environment, so that it can have an effective value. One of those values ​​is turning it into a learning medium that can assist teachers in providing more efficient learning to students.
Abstrak. Pengolahan sampah dan barang bekas telah menjadi hal yang vital dalam usaha pelestarian lingkungan. Salah satu upaya dalam pengolahan sampah adalah dengan melakukan proses daur ulang untuk dijadikan sebagai media pembelajaran. Permasalahan yang dibahas dalam penelitian ini yaitu mengenai pengembangan media pembelajaran dari sampah (alat peraga virus) untuk meningkatkan hasil belajar peserta  didik SMA Negeri 6 Madiun. Metode penelitian yang digunakan adalah Jenis penelitian berupa penelitian penerapan menggunakan One-Group Pretest-Posttest Design untuk membandingkan hasil pretest dan post-test. Tahap pretest dilakukan saat peserta didik belum diberi perlakuan sedangkan tahap posttest dilakukan saat peserta didik telah diberi perlakuan. Pelaksanaan dilakukan sebanyak dua kali pertemuan pada 71 peserta didik kelas X  SMA Negeri 6 Madiun. Berdasarkan hasil analisis data yang telah dilakukan dalam penelitian pada mahasiswa ppg prajabatan Universitas PGRI Madiun didapatkan hasil bahwa variable Pendidikan kewirausahaan, Efikasi diri, berpengaruh positif dan signifikan sebagai pembuatan media pembelajaran signifikan meningkatkan hasil belajar peserta didik kelas X. Kegiatan proyek ini adalah tentang bagaimana mengelola dan menangani sampah anorganik di lingkungan sekolah, sehingga bisa memiliki nilai efektif. Salah satu nilai itu adalah mengubahnya menjadi media pembelajaran yang dapat membantu guru dalam memberikan pembelajaran yang lebih efisien terhadap peserta didik.
Prototipe Sistem Radar Pendeteksi Banjir Berbasis Web Server
Authors: Aulia Nurunnisa , Hadikusuma Ridwan Satrio , Stefanie Arnisa
Published: June 2023

Abstrak—Tujuan dari penelitian ini adalah untuk mengembangkan sistem pemantauan banjir dan peringatan dini secara real-time. Teknik penginderaan ultrasonic sebagai RADAR(Radio Detection and Ranging)  banyak digunakan di berbagai bidang teknik dan ilmu dasar. Salah satu keuntungan dari penginderaan ultrasonik adalah kemampuannya yang luar biasa untuk menyelidiki di dalam objektif secara non-destruktif karena ultrasonik dapat merambat melalui berbagai jenis media termasuk padatan, cairan dan gas. Studi ini hanya berfokus pada deteksi ketinggian air dan sistem peringatan dini (melalui situs web) yang memperingatkan lembaga dan individu terkait akan potensi kejadian banjir. Selain itu, sistem inquiry juga dimasukkan dalam penelitian ini agar lebih interaktif dimana individu dalam masyarakat dapat menanyakan ketinggian air aktual dan status daerah atau lokasi yang diinginkan terkena banjir melalui web. Kajian ini bertujuan untuk membantu warga agar siap dan berpengetahuan ketika terjadi banjir. Inovasi studi ini berada pada pemanfaatan ESP 32, sensor ultrasonic dan monitoring melalui web dalam membantu pemangku kepentingan untuk mengurangi korban terkait banjir. Artikel ini bertujuan untuk membantu daerah-daerah rawan banjir yang umum terjadi.
Sistem Penerima Paket Barang dengan Sterilisasi UVC Melalui Telegram Berbasis IoT
Authors: Hanifatunnisa Rifa , Hasanah Rahmawati , Naidah Gani Mina , Dea Riyadi Rahmanisa , Irfan Taufik
Published: June 2023

Manusia perlu membeli berbagai macam barang untuk memenuhi kebutuhan sehari-hari. Langkah yang tepat untuk kondisi pandemi saat ini adalah dengan membeli kebutuhan tersebut secara daring. Pembelian kebutuhan tersebut juga sebaiknya tidak sampai berkontak fisik dengan kurir pengirim paket secara langsung, serta selalu mensterilisasi paket barang tersebut. Dalam penelitian ini, dibuat sebuah wadah kotak untuk menerima paket barang dengan sistem sterilisasi menggunakan lampu UVC. Pemilik paket barang tidak perlu berkomunikasi langsung dengan kurir pengantar barang dengan adanya kotak penerima paket ini, serta dapat memantau paket barang yang diterima. Cara kerja sistem ini dimulai dengan pemilik memasukan nomor resi barang yang akan dikirimkan ke dalam database, lalu ketika kurir akan menyerahkan paket barangnya harus menginputkan nomor resi dengan mengakses web dari scan QR Code yang tertera pada wadah kotak, jika data yang diinputkan tersebut sesuai dengan data yang tersimpan di database, pintu akan terbuka dan kurir dapat memasukan paket barang tersebut. Barang yang masuk dideteksi sensor IR dan penerima akan mendapatkan notifikasi melalui Telegram. Paket barang akan dilanjutkan dengan melakukan proses sterilisasi menggunakan lampu UVC selama 10 detik. Pengujian telah berhasil dilakukan dengan akurasi pencocokan nomor resi, pendeteksian paket barang sampai dengan pengiriman notifikasi barang pada telegram, serta dapat melakukan proses sterisilasi paket barang secara otomatis.
Microvessel density, lipid chemistry and N2 solubility in human and pig adipose tissue
Authors:   Biology and Marine Biology Department, University of North Carolina Wilmington – Wilmington, North Carolina U.S., Gabler-Smith Molly K. , Westgate Andrew J. ,   Biology and Marine Biology Department, University of North Carolina Wilmington – Wilmington, North Carolina U.S., Koopman Heather N. ,   Biology and Marine Biology Department, University of North Carolina Wilmington – Wilmington, North Carolina U.S.
Published: June 2023

Decompression sickness (DCS) occurs when nitrogen gas (N2) comes out of solution too quickly, forming bubbles in the blood and tissues. These bubbles can be a serious condition; thus it is of extreme interest in the dive community to model DCS risk. Diving models use tissue compartments to calculate tissue partial pressures, often using data obtained from other mammalian species (i.e., pigs). Adipose tissue is an important compartment in these models because N2 is five times more soluble in fat than in blood; at any blood/ tissue interface N2 will diffuse into the fat and can lead to bubble formation on ascent. Little is known about many characteristics of adipose tissue relevant to diving physiology. Therefore, we measured microvessel density and morphology, lipid composition, and N2 solubility in adipose tissue from humans and pigs. Human adipose tissue has significantly higher microvascular density (1.79 ± 0.04 vs. 1.21 ± 0.30%), vessel diameter (10.25 ± 0.28 vs. 6.72 ± 0.60 μm), total monounsaturated fatty acids (50.1 vs. 41.2 mol%) and N2 solubility (0.061 ± 0.003 vs. 0.054 ± 0.004 mL N2 mL-1 oil) compared to pig tissue. Pig adipose tissue has significantly higher lipid content (76.1 ± 4.9 vs. 64.6 ± 5.1%) and total saturated fatty acids (38.8 vs. 29.5 mol%). Though two important components in gas kinetics within adipose tissue during diving (blood flow rates and degree of perfusion) are not well understood, our results indicate differences between the adipose tissue of humans and pigs. This suggests data from swine may not exactly predict gas dynamics for estimating DCS in humans.
Succinic acid production from softwood with genome-edited Corynebacterium glutamicum using the CRISPR-Cpf1 system
Authors: Lee Dae-Seok , Cho Eun Jin , Song Younho , Chang Jihye , Nguyen Dinh-Truong , Bae Hyeun-Jong
Published: June 2023

Corynebacterium glutamicum is a useful microbe to produce succinic acid,
a bio-based platform chemical, under anaerobic condition. The knock-out
mutant of lactate dehydrogenase 1 gene (ΔldhA-6) and co-expression of
succinic acid transporter (Psod:sucE- ΔldhA) were generated by using
CRISPR-Cpf1 genome editing system. HAPC (hydrogen peroxide and acetic
acid) pretreatment is a highly efficient method for enzymatic hydrolysis
of softwood and the hydrolysate was used for production of succinic
acid. In the 15% hydrolysate (Pinus densiflora), the best condition
for ΔldhA mutant to produce succinic acid from the hydrolysate was
confirmed to ferment 4% hydrolysate, resulted in 14.82 g L-1 succinic
acid production for 6 h, which reached to 2.47 g L-1 h-1 productivity.
No production of acetic acid and lactic acid was detected during the
fermentation. The co-expression transformant, [Psod:sucE- ΔldhA],
produced 17.70 g L-1 succinic acid in 6 h, presenting a productivity of
2.95 g L-1 h-1 on the 4% hydrolysate. In the fed-batch system, 39.67 g
L-1 succinic acid was produced for 48 h. The yield of succinic acid from
reducing sugars in the hydrolysate is approximately 56.71%, while the
yield of succinic acid from glucose alone as the main substrate is
approximately 84.4%. These results indicated that the production of
succinic acid from softwood has potential applications in alternative
biochemical processes, and minimizing the loss of sugars during
enzymatic hydrolysis and fermentation can lead to more economic benefits
in succinic acid production from lignocellulosic biomass.
Responses of intraspecific metabolic scaling to temperature and activity differ between water- and air-breathing ectothermic vertebrates
Authors: García-Gómez Guillermo , Hirst Andrew , Spencer Matthew , Atkinson David
Published: June 2023

Metabolism underpins all life-sustaining processes and varies profoundly
with body size, temperature, and locomotor activity. Explaining
variation in metabolic rates is crucial in ecology. Current theory
explains the variation in body mass-scaling exponent (b) through changes
in metabolic level (L), depending on whether these changes mainly affect
volume (V)- or surface-area (SA)-related processes. Another theory
predicts that evolved avoidance of oxygen limitation in water-breathers
experiencing warming will diminish the increased respiration at large
sizes. We test these predictions using intraspecific metabolic scaling
responses to temperature (523 regressions) and activity (281
regressions) in diverse ectothermic vertebrates (fish, reptiles and
amphibians). We show that b decreases with temperature-increased L only
in water-breathers, supporting SA-related avoidance of oxygen
limitation, whereas b increases with activity-increased L only in
air-breathers, following V-related influences. This new quantitative
theoretical integration extends explanatory power to incorporate
different influences (warming, locomotion) and respiration modes
(aquatic, terrestrial) on animal energetics.
Fosfomycin-induced liver injury: a case report and literature review
Authors: Faragalla Kyrillos , Cohen-Lyons Daniel , Parvinnejad Nikoo , Wang Hanlin , Liu Jimin (Nancy)
Published: June 2023

Fosfomycin is an antibiotic often used to treat urinary tract infections
(UTIs) with only rare transient hepatotoxicity. We present a case of
fosfomycin-induced liver injury and describe the histopathologic
findings on biopsy. A 64 year-old female patient with no prior liver
disease or risk factors was started on fosfomycin as prophylaxis for
recurrent UTIs. Within a week of her first dose she presented with
fatigue, jaundice, and mixed liver enzyme elevation. Clinical workup for
acute liver injury was unremarkable, and biopsy showed panacinar and
portal necroinflammation with predominantly lymphocytic infiltrate and
cholestasis. This was thought to be likely related to fosfomycin
exposure. While liver enzymes trended down, bilirubin initially remained
elevated. However, within three months the patient achieved clinical and
biochemical recovery. Only two other reports of fosfomycin-induced liver
injury requiring biopsy were found. Both developed acute cholestatic
hepatitis within days of exposure, and subsequent biopsy similarly
showed lymphocytic necroinflammation. Although one patient initially
developed acute liver failure, both recovered fully within few months.
Overall, these cases suggest likely an idiosyncratic or immune-mediated
liver toxicity of fosfomycin which is typically self-limited with rapid
recovery. Liver biopsy may be useful in confirming the diagnosis.
Stability, Funding Risk and Bank Performance: Evidence from Pakistan
Authors: Vohra Mohsin Siraj , Mubeen Muhammad , Arif Kashif , Perwez Khuram
Published: June 2023

This study analyzes how banks' stability and funding risk affect their profitability in the case of Pakistan. For this purpose, data from 19 Banks were used from 2000 to 2016. The independent variable was Bank Performance for which Return on Assets was used. The dependent variables were first, Bank Stability, which was calculated as the Z-Score of RoA and Equity to Assets,  and second, Funding Risk, which was calculated as the Z-Score of Deposits to Assets Ratio and Equity to Assets. Our control variables were Bank Size, Credit Risk, Liquidity Risk, Diversification, and Capital to Asset Ratio. Our results indicated that Funding Risk, Liquidity Risk, Credit Risk, and  Bank Size are negatively affecting bank performance whereas bank stability is positively affecting bank performance. From the result of size, we may conclude that in the case of Pakistan, Larger Banks are not getting the benefits of economies of scale. Our findings suggest that policymakers and banking institutions in Pakistan should prioritize efforts to enhance bank stability and mitigate funding risk in order to improve bank profitability.
Productivity of new harvester prototype in willow plantations with different growing stock
Authors: Lazdins Andis , Makovskis Kristaps , Zimelis Agris , Gusarevs Igors , Gusarevs Germans
Published: June 2023

A prototype of a mower-chipper typeharvester was developed for cutting small stems in cooperation between LSFRI Silava and SIA Laflora. The prototype produces chips and eco-pellets of various lengths in short rotation coppice, shelter belts and overgrown agricultural lands. The innovative element of the harvester is use of gravity force (bending of stems by a tractor own weight and formation of bunch of shoots with header and underframe) to feed in circular saws and chipper, thus significantly reducing energy demand for bending of shoots into the chipper, which is the most energy demanding operation in other commercial willow harvesters. Time studies were implemented in Skrīveri region in August 2022 in short rotation coppice fields established in 2011. Willows of tree different ages (1, 3 and 5 years) were harvested. The main factor influencing productivity in the study sites was growing stock of the coppice crops. The driving speed of the base machine cannot be significantly increased to avoid clogging of the chipper infeed and to retain good quality of chips; therefore, reduction of growing stock cannot be compensated with faster driving in the field. It was also noted that wood chip quality becomes significantly worse if the stump diameter of an average shoot is less than 1 cm and the saw blades are more often blocked by thin, flexible shoots. Similarly, clogging related issues were found in the 5 year old plantation. Optimal work conditions were in the 3 year old coppice crop; however, the driving speed of the base machine (MTZ82 tractor) was still too high. The recommended speed in such conditions is 0.8-1.2 km·h-1. The yield obtained in the tests under these conditions in the 3 year old coppice crop was 2.4 tons of dry matter per hour. The productivity could be raised by increasing the power of the base machine. There is still space for technical improvements to avoid clogging of material in the chipper and jamming of saw blades, as well as to improve the quality of chips.
Thermodynamic and NOx emission analysis of diesel engine with intake manifold steam injection
Authors: Amatnieks Karlis , Smigins Ruslans , Birkavs Aivars
Published: June 2023

The steam injection method is an effective solution for thermal efficiency enhancement. While there exist different steam injection methods, only one of them is discussed in this paper presenting a thermodynamic analysis of steam injection in the intake manifold of a diesel engine to identify possible steam effects on the performance and combustion characteristics. The impact of steam injection mass on the thermodynamics of the diesel engine was evaluated by the engine model, which was created in the ExtenSim7 software, including the relevant mathematical relationships. The engine KDI 1903M was chosen for analysis, and its technical characteristics were used to obtain the modelling data. As a result of the model operation, it is assumed that steam was injected into the intake manifold at the time of the induction stroke at different steam injection mass: 10, 20, 30, 40 and 50 mg. The model confirmed growth of the pressure increase ratio and effective power with the increase of the steam injection mass, as also variations in the temperatures at the end of compression and combustion. Some other important parameters, like NOx emissions, are also discussed and compared using steam injection and without it. The results showed that at 50 mg of steam injection, the combustion temperature and NOx emissions decreased by 36 K and 62 ppm, respectively. At the same time, a slight increase in power in the amount of 4.3% is observed due to a growth of the pressure increase ratio. The results provide guidance for the future experimental studies in laboratory conditions.
Assessment of derailment quotient of locomotive bogie
Authors: Ishchuk Vadym , Dizo Jan , Blatnicky Miroslav , Solcansky Sebastian
Published: June 2023

In the conditions of the market economy and increased competition in the market of transport services, railway transport maintains an important position in the economy. Its main importance is due to technical and economic advantages over most other modes of transport. The main element of rail transport is rail vehicles, which must meet modern technical and economic requirements. Only competitive modern and progressive scientific technologies work effectively in a market economy. Traffic safety, technical and economic indicators of railway transport depend on the development of these technologies. The aim of this study is to improve the properties of a two-axle bogie of a locomotive as one of the main components on which the above-mentioned parameters depend. The commercial simulation software package Simpack was used for the research, in which MBS models of three types of bogies were created. Namely, there are modifications of the bogie considering a different distribution of the weight and different dimensions of chosen parameters. The first type of bogie is the basic one. This bogie is operated on railways. The other two are modifications of the first one, namely such parameters as the weight of separate parts of the bogie, dimensions of the bogie and wheelset, and location of the centre pivot. The research was conducted in terms of the derailment quotient, as one of the main parameters on which traffic safety depends, for different speeds and curve radii. After carrying out simulation calculations, the results were processed using Simpack post software. In all cases, the derailment quotient did not exceed the permissible value for all types of bogies. The best derailment quotient was for the third type of bogie, the derailment quotient of the second type was slightly overestimated in comparison with the other two but was still within the norm.
Strategic analysis of welfare indicators in EU member states that joined EU after 2004 during 2015-2021
Authors: Kaposzta Jozsef , Lorinc Balazs
Published: June 2023

In today’s economic analyses, welfare factors, which include the soft factors of competitiveness, play an increasingly important role. The reduction of social and economic inequalities and the fight against poverty are key factors in the economic strategies of countries, as social development is one of the foundations for the expansion of these factors. This makes the topic of territorial, economic and social inequality an important and topical one, which has been examined from many different perspectives over the past decades. Nevertheless, a uniformly accepted methodology for analysis across all countries has not yet been developed in the European Union. The main hypothesis of our study is that the growth of economic performance in countries is most favourable where social factors provide optimal conditions for development. Taking the conceptual framework of territorial inequality and unequal development as a starting point, our research has carried out a specific income inequality analysis between 2015 and 2021 of the countries that joined the European Union after 2004. In our analysis, we have included in our inequality model the “persons at risk of poverty or social exclusion”, the “income quintile share ratio (S80/S20) for gross total disposable income” and the specially constructed values of the “GINI index”. Our research has shown that social competitiveness factors can play a much more complex role than expected in shaping a country’s national strategy, and that the differentiating effects of these “soft factors” can be crucial in reducing territorial disparities.
Kinematic analysis of parallel transfer mechanism
Authors: Kronbergs Eriks , Smits Mareks
Published: June 2023

The parallel transfer mechanism (patent LV 15506B) consists of links in form of two parallelograms with one common horizontal link and parallel to it opposite links of equal length, and the links of side edges of the parallelograms the lengths of which are equal in pairs, respectively. The common link of the parallelograms is formed as a guide for a slider to which two links are connected corresponding to the lengths of the side edge links of the parallelograms. The other ends of these elements are connected to the side edge links forming a rhomboid contour. The links of this planar linkage are connected by pin joints. For cyclic operation of the parallel transfer mechanism the hydraulic actuator is connected to the slider and attached to the common link. If the lower parallelogram link is the ground link, the output link will be the upper link, which parallel transfer movement will be ensured. The purpose of the work is kinematic analysis of this innovative mechanism. The side members with a length of 0.5 m and a hydraulic actuator with a speed 0.2 m·s-1 of movement are selected as a sample of the mechanism. Kinematic parameters as displacement, velocity and acceleration of the upper output link were determined using the Mathcad program for an idealized mechanism ignoring friction. These maximum values were 1 m, 0.985 m·s-1 and 0.508 m·s-2 accordingly. If the displacement of the output link is reduced, avoiding singularities and ensuring stability of mechanism, the maximum displacement, velocity and acceleration values will be reduced to 0.65 m, 0.55 m·s-1 and 0.10 m·s-2, accordingly. By changing the input parameters, it is possible using this Mathcad calculation method to obtain the values of the kinematic parameters for other size mechanisms.
Potential role of tree introduction in agricultural land to reduce greenhouse gas emissions
Authors: Bardulis Andis , Purvina Dana , Bardule Arta , Lazdins Andis
Published: June 2023

The European Union (EU) has proposed legislative revisions to achieve climate neutrality in EU by 2050. The Land Use, Land-Use Change and Forestry (LULUCF) Regulation, adopted in 2018, is being revised to ensure that accounted greenhouse gas (GHG) emissions from LULUCF are balanced by equivalent accounted removals of carbon dioxide (CO2) from the atmosphere. This study focuses on the impact of targeted tree introduction in agricultural land in Latvia, specifically afforestation of drained organic soil and implementation of agroforestry systems (riparian buffer strips), on national GHG reduction targets for the LULUCF sector. The potential contributions of selected measures were evaluated using evaluation methods including GHG emissions factors based on the Intergovernmental Panel on Climate Change (IPCC) guidelines and recent scientific studies. The study differentiated between different land use categories by GHG emissions from soil and CO2 removals in living biomass, dead wood, litter, mineral soil, and organic soil. Basic scenarios were compared with additional scenarios that included afforestation of drained organic soils and implementation of agroforestry systems. The study analysed the possibilities of achieving LULUCF sector goals for 2030, 2035, and 2050 with the selected scenarios. According to the basic scenarios, the LULUCF sector has been a continuous source of GHG emissions since 2019, partly compensated by forest management by 2040, but after 2040 forest management becomes a source of GHG emissions as well. The study shows that afforestation of organic soils currently used for agricultural production can reduce GHG emissions and ensure the achievement of national LULUCF targets for 2021-2025, with a significant decrease in GHG emissions by 3.9 million t CO2 eq. during the 2021-2025 period if compared to the basic scenario. However, the study finds that national target of net GHG removals is not achieved for 2026-2030 according to both basic and afforestation scenarios if no additional measures, e.g., establishment of the shelter belts, are implemented.
Unified evaluation criteria system for selection of most preferable mode, route and means of transportation for oversized and super heavy cargoes
Authors: Malkus Ricardas , Liebuviene Jurate , Jokubyniene Vida
Published: June 2023

In case of planning transportation of Oversized and Super heavy Cargo (OSSHC) we always meet two fundamental constrains – the time of completing the task and the financial costs of implementation. Also, the decision-making process should be as much as rational, uncomplicated, efficient and inexpensive. The importance of fundamental constrains mentioned above could vary because of specific circumstances impacting the decision maker. The essence of the Unified Criteria System (UCS) is to create a possibility to recalculate time and financial cost values into the Unified Criteria Unit. In case of correct access, the evaluation process is implemented comparing summed amounts of criteria points of each evaluated variant including means of transport, route, etc. The importance of findings is that UCS allows us to assess objectively huge number of variables (more than 50) concerning the process of transportation, including infrastructure improvement, legal, social obstacles, etc. without the time and money consuming extensive calculations and this empowers the decision maker to evaluate qualitatively and quickly choosing the most preferable alternative. The work deals with the possibilities of transportation of super heavy and oversized goods by road vehicles, railways, inland waterway vessels and trans-shipping of the cargo in Klaipėda State Seaport as well as application of the aforementioned modes of transport in multimodal transportation operations. Potential problems that may impede transportation or make the carriage practically impossible have been also assessed, variants of solutions of the problems are also provided.
Comparison of physical mechanical properties of granulated fertilizer produced from composted cattle and dried cow, Pig and poultry manure
Authors: Mieldazys Ramunas , Jotautiene Egle , Gaudutis Aloyzas , Jasinskas Algirdas
Published: June 2023

The advantages of granular organic fertilizers are more convenient handling, storage, transportation, compared to traditional management of manure with litter. Manure granulation can increase the bulk density, improve storability, reduce transportation costs, and make these materials easier to handle using traditional existing handling and storage equipment. There were prepared four experimental samples of various manure mill and granules in laboratory conditions. For granule production a 7.5 kW granulator, with a horizontal 6 mm matrix was used. During the research, the physical-mechanical characteristics were estimated: biometric properties (dimensions, mass), raw material and granule volume and density, humidity, and granule strength of various composition cattle, cow, pig, and poultry manure material. Cattle manure compost contained the most material (65%) of the mass fraction, up to 0.25 mm. In dried cow, pig, and poultry manure, the amount of fraction material was mostly from 1 to 2 mm. The obtained results show that the highest bulk density of the prepared mill was from cow manure and the lowest bulk density was from poultry manure. The highest moisture content was also for cow manure, and the lowest determined moisture content was for poultry manure samples. The highest density was determined for cattle manure compost granules. The highest compressive strength, in the horizontal plane, was determined for hen manure granules, the force required to crush them reached 657 N. The aim of this work is to compare the main physical and mechanical properties of the studied manure material and produced experimental granules.
Review of effectiveness of visual and auditory bird scaring techniques in agriculture
Authors: Pruteanu Augustina , Vanghele Nicoleta , Cujbescu Dan , Nitu Mihaela , Gageanu Iuliana
Published: June 2023

Pests cause huge damage that leads to high losses in crops and implicitly to lower yields in the agricultural sector. Of these, birds are also harmful in terms of crop damage, especially for high value crops (vineyards, trees, cereals, vegetables). In the pre-harvest period, birds (starlings, blackbirds, pigeons, sparrows, sowing crows) can be able to destroy about 60-70% of the crop in a very short time. Complete crop loss is possible if no deterring mechanisms are used. Farmers want to find an easy and cost-effective way to keep birds away from their crops because uncontrolled birds can completely destroy the whole crop. Finding a balance is difficult, so even modern equipment and great efforts will not prevent all the damage caused by bird attack, some of these devices may cause disturbing environments for people if they are not properly managed. However, the right tools and good management can reduce the attack of birds and conserve more crops. Currently, large research is oriented toward the development of agricultural robots as tools in ecological research, but with extraordinary potential for biodiversity sampling, studies of population dynamics and ecosystem functioning, experimental biology and behavioral studies. Recently, drones have become increasingly accessible, and this currently leads to their widespread use for wildlife observation, the study of bird behavior. At present, there is no bird control technique that provides maximum protection for crops, so it is recommended to use a combination of scaring methods at the same time, namely: acoustics (propane cannons, pyrotechnic cartridges, speakers, etc.), visually (balloons, mirrors, reflective tapes, kites, lasers, drones, etc.) and physical (nets). In this context, this paper aims to identify the losses from different crops due to the attack of birds and proposes an integrated approach to effective visual and auditory removal techniques, such as to preserve the role of birds in the global balance of the environment.