bluuebunny/crossref_metadata_2025_split huggingface dataset:
Potensi Dimetil Amino Phosphat (DAP) sebagai Sumber Nitrogen dalam Pembuatan Nata De Coco
Authors: Hamad Alwani , Pradiyanti Desiana , Puspawiningtyas Endar 
Published: November 2022

Nata de coco adalah makanan fungsional yang mengandung fiber. Nata de coco merupakan produk fermentasi bakteri Acetobacter xylinum yang ditumbuhkan pada media cair seperti air kelapa. Selain dari air kelapa, mikroba juga memerlukan nutrisi tambahan yaitu dari carbon dan nitroge untuk pertumbuhannya yang dilakukan dalam proses fermentasi. Selama ini penambahan sumber nitrogen dilakukan dengan menggunakan urea dan ZA yang juga digunakan untuk pupuk pertanian, sehingga sebagian orang meragukan keamanannya. Dalam penelitian ini mengkaji potensi dimetil amino phosphate (DAP) sebagai sumber nitrogen dalam fermentasi nata de coco. Nata dibuat dengan menggunakan 500 ml air kelapa yang telah disterilkan ditambah 17,5 g gula, 20 ml asam cuka, 60 ml starter Acetobacter xylinum serta ditambah variasi DAP (0, 0.05, 0.25, 0.5, 2.5 dan 3.4 g). Sedangkan sebagai kontrol yaitu nata dengan menggunakan sumber nitrogen urea dan ZA masing – masing sebanyak 3 g. Fermentasi dilakukan selama 10 hari dan setelahnya dilakukan analisis fisik (yield dan tebal nata), analisis kimia (kadar air dan kadar serat) dan uji organoletis (rasa dan tekstur). Hasil penelitian menunjukkan bahwa hanya pada penambahan DAP yang rendah (0.05 g) memberikan karakteristik fisik yang significant sama (p>0.05) terhadap control. Sedangkan jumlah kadar air significant sama dengan control dan sample yang lain. Kadar serat menunjukkan hasil yang lebih besar dari pada control (3,9 %) dan semua sample nata menggunakan DAP rasa disukai oleh responden dengan tekstur kenyal seperti control. Dari penelitian ini dapat disimpulkan bahwa DAP dapat menggantikan urea dan ZA sebagai sumber nitrogen dalam pembuatan nata de coco.
UPAYA PENINGKATAN PENGETAHUAN DAN MOTIVASI PEMAKAIAN OVITRAP UNTUK PENCEGAHAN PENYAKIT DBD
Authors: Ramayanti Indri , Zalmi Ghina , Saputra Yogi , Dhimas Fandika , Hasanah Khalifah , Asmalia Resy , Prameswarie Thia 
Published: November 2022

Demam Berdarah Dengue (DBD) merupakan infeksi akibat virus dengue yang ditularkan oleh nyamuk Aedes spp. Kasus DBD di Sumatera Selatan menunjukan peningkatan yang signifikan dari tahun ke tahun. Faktor penyebab yaitu rendahnya pengetahuan masyarakat mengenai pencegahan dan pemberatasan penyakit DBD. Tujuan kegiatan ini untuk melakukan penyuluhan kesehatan sebagai upaya pencegahan DBD dan mengurangi kepadatan nyamuk dengan pelatihan pembuatan ovitrap sederhana. Metode yang digunakan berupa penyuluhan tentang bionomik vektor, etiologi penyakit dan teknik pengendalian vektor dengan memperkenalkan metode ovitrap air gula dan ragi roti. Kegiatan penyuluhan dan pelatihan berjalan dengan baik dan lancar. Seluruh peserta yang hadir menunjukkan adanya respon positif dan peningkatan pemahaman tentang penyebaran dan pemberantasan penyakit DBD, di mana pada pelaksanaan penyuluhan mencerminkan keinginan untuk memahami cara pengendalian DBD dan mampu menjelaskan kembali tentang materi yang telah disampaikan. Pendampingan pembuatan alat ovitrap juga memberikan manfaat yaitu dapat meminimalisir dan mengurangi populasi nyamuk di sekitar rumah warga.
PELATIHAN DAN PENDAMPINGAN PEMBUATAN ALAT PERAGA EDUKATIF PADA MATA PELAJARAN FIQIH DI MI PLUS AL FALAH SUNGAI LULUT BANJARMASIN TIMUR
Authors: Kumala Sari , Hafiz Abdul , Ansari Muhammad Iqbal , Arifa Tutus Rani , Jumiati Jumiati 
Published: November 2022

Alat peraga merupakan suatu alat bantu yang digunakan oleh pendidik untuk memberikan pengajaran kepada peserta didiknya dengan tujuan agar si peserta didik mampu mempelajari sesuatu bidang yang dipelajarinya, lebih cepat memahami dan mengerti, dan lebih efektif serta efisien. di Madrasah Ibtidaiyah terdapat mata pelajaran yang berkaitan erat tantang ibadah yaitu pada mata pelajaran Fiqih yang mana sangat diperlukan alat peraga untuk menunjang agar tercapai proses pembelajaran serta pembelajaran agar lebih menarik bagi siswa sehingga siswa juga menyukai pembelajaran yang berkaitan tentang ibadah. Di sekolah MI Plus Al Falah Sungai Lulut Banjarmasin Timur termasuk Sekolah yang baru berdiri sehingga Solusi yang ditawarkan yaitu dengan memberikan pelatihan dan pendampingan pembuatan alat peraga edukatif pada mata pelajaran Fiqih dengan tujuan agar Guru-guru di MI Plus Al Falah Sungai Lulut Banjarmasin dan memiliki pengetahuan dan keterampilan dalam pembuatan Alat Peraga Edukatif untuk mata pelajaran Fiqih. Metode yang digunakan pada pengabdian ini yaitu di awali dengan ceramah, diskusi dan Tanya jawab dilanjutkan demonstrasi/ praktek, workshop / pelatihan dan pendampingan. Kegiatan dilaksanakan dengan cara tatap muka dan praktek. Ketercapaian tujuan pelatihan pendampingan pembuatan alat peraga edukatif pada mata pelajaran Fiqih secara umum sudah baik, dilihat dari hasil latihan para peserta dalam membuat alat peraga edukatif pada mata pelajaran Fiqih dari kain planel dapat diselesaikan dengan baik. Selain itu, melalui kegiatan pelatihan dan pendampingan ini para peserta menjadi tahu tentang bagaimana cara membuat alat peraga edukatif pada mata pelajaran Fiqih materi Sholat dari kain Planel. Secara keseluruhan kegiatan pelatihan pembuatan alat pearaga edukatif Mata Pelajaran Fiqih materi sholat dapat dikatakan berhasil.
The higher water vegetation of loess «islands» of Chernihiv Polissia
Authors:   T. Shevchenko National University “Chernihiv Collegium”, Yakovenko O. 
Published: November 2022

The results of research on the higher aquatic vegetation of the water bodies of the loess «islands» in Chernihiv Polissia are presented. Higher aquatic vegetation occupies small areas (up to 6 %) on loess «islands». The plant communities have been identified. Plant communities have typical species composition and structure for Polissia vegetation. The classification scheme of plant syntaxons is based on the floristic-ecological approach. It was established that the higher aquatic vegetation of the loess «islands» reservoirs is represented by three classes: Lemnetea, Potametea and Phragmito-Magnocaricetea, belonging to five orders, 10 unions and 34 associations. The distribution of plant communities was clarified. The comparison of the higher aquatic vegetation classes representation of the loess «islands» water bodies in the Chernihiv Polissia was carried out. The greatest phytocenotic richness and diversity is noted in the Phragmito-Magnoсаricetea class, while the least is observed in the Lemnetea and Potametea classes. The Lemnetea class communities occur mainly in shallow water in the water bodies of all loess «islands». The vegetation of free-flowing aquatic plants belonging to the Lemnetea class is mostly represented on the territory of the Berezna-Mena-Sosnytsia and Ripky-Chernihiv loess «islands». This is due to the larger hydrological network on these loess «islands». The Potametea class communities are distributed only on three loess «islands» of the Chernihiv Polissia. Mykhailo-Kotsyubinsky loess «island» has the smallest area among the «islands», the most transformed landscapes and a small number of water bodies. Therefore, there are no Potametea class communities here. In conditions of high humidity and high mineral nutrition, the communities of the Phragmito-Magnocaricetea perennial herbs develops, first of all, of the Magnocaricetalia order. The significant distribution of Phragmito-Magnocaricetea communities is due to the presence of favorable conditions for their development: low-lying areas of floodplains that are periodically flooded, coastal shallows with significant fluctuations in the water level during the growing season. A comparison of the syntaxonomic diversity of the higher aquatic vegetation classes was carried out. The centers of phytocoenotic richness were determined. The reservoirs of the Mykhailo-Kotsyubinsky loess «island» are characterized by the least syntaxonomic diversity. There are no centers of phytocenotic opulence here.
Diversity of Ppd-1 genotypes of spring and winter bread wheat (Triticum aestivum L.) of Ukraine
Authors:   Plant Breeding and Genetics Institute National Center of Seed and Cultivar Investigation, Fait V. , Balashova I. ,   Plant Breeding and Genetics Institute National Center of Seed and Cultivar Investigation
Published: November 2022

Ancient and modern 183 varieties of winter and 23 spring types of development of bread wheat (Triticum aestivum L.) selected Ukrainian state institutions and private companies are characterized by alleles of Ppd-D1, Ppd-B1, and Ppd-A1 genes. Allele-specific molecular markers, proposed in the scientific literature, were used to identify carriers of the Ppd-D1a, Ppd-D1b, Ppd-D1c, Ppd-D1d, Ppd-B1a, Ppd-B1c, Ppd-A1b alleles. According to the results of PCR analysis, the most widespread among the studied winter cultivars was observed in the dominant allele Ppd-D1a (91.9 %) with a range from 80.0 % in the sampling of varieties of the Northeast (Kharkiv, Sumy) to 95.0 % in southern cultivars (Odesa, Kherson), and in spring – recessive Ppd-D1c (43.5 %). The share of carriers of various recessive alleles of the Ppd-D1 gene among spring varieties is 73.9 %, and among winter – 8.1 % and, except for Borovitsa and Talisman consists of cultivars created by the late 60 – early 70 years of last century. The frequencies of the Ppd-B1a and Ppd-B1c alleles are quite small. The Ppd-B1a allele was found only in three spring varieties, and the Ppd-B1c allele in 5 winter varieties and spring wheat Struna Mironivska, except for the latter cultivar, in all cases found together with the Ppd-D1a allele. The Ppd-A1 gene was present in a recessive state in all studied sorts. Seven different homozygous Ppd-1 genotypes have been determined in the studied cultivars. Samples of winter and spring varieties differ significantly in the quantity and frequency of specific Ppd-1 genotypes. The presence of varieties with monogenic dominant Ppd-D1a or Ppd-B1c control of traits and digenic dominant Ppd-D1a Ppd-B1a genotypes has been marked in spring wheat, as well as monogenic dominant for Ppd-D1a and digenic dominant for Ppd-D1a in winter wheat varieties. In spring cultivars the share of carriers of recessive alleles of Ppd-1 genes is several times higher (69.6 %) than in winter varieties; conversely, the samples of winter varieties have significantly more dominant alleles (91.9 %). Such differences in genotype frequencies are due to the timing of sowing and duration of the natural day at the latitude of the growing region during the growing season of winter and spring varieties.
Genomic potential of Streptomyces roseochromogenes NRRL 3504 for the production of specialized metabolites: analysis in silico
Authors:   Ivan Franko National University of Lviv, Melnyk S. , Hrab P. ,   Ivan Franko National University of Lviv, Ostash B. ,   Ivan Franko National University of Lviv
Published: November 2022

Streptomyces roseochromogenes NRRL 3504 is the only known producer of aminocoumarin antibiotic clorobiocin – an inhibitor of bacterial DNA-gyrase and topoisomerase IV. Sequencing of NRRL 3504 genome revealed a plethora of specialized metabolite biosynthetic gene clusters (BGCs) within the latter, attesting to the significant potential of this species for the production of various as-yet-unknown bioactive compounds. Here we report bioinformatic analysis of NRRL 3504 genome aimed to better understand what kind of small molecules this strain could produce and genetic mechanisms that may limit their production. In addition to the most commonly applied bioinformatic service for BGCs detection antiSMASH, we turned to alternative tools for secondary metabolome in silico analysis such as PRISM, DeepBGC, ARTS, SEMPI and GECCO. While different genome mining applications pointed to a common core set of BGCs within the NRRL 3504, each tool having its own algorithm of BGCs detection also discovered certain number of non-overlapping clusters. This was especially true for machine learning tool DeepBGC that unearthed the biggest number of BGCs. To summarize the obtained results we used BGCViz tool, which visualizes and integrates BGC annotations from various sources by using genomic coordinates. We discuss the genetic and structural diversity of the BGCs and outline the most interesting, in opinion, targets for further investigations. Most of the described BGCs are most likely silent due to very low or zero transcription. Therefore, it might be needed to find the ways to activate the transcription of the BGCs of interest. To this end, we mined NRRL 3504 genome for the orthologs of global regulatory genes known to be involved in regulation of specialized metabolism of S. coelicolor A3(2). We were able to identify almost all plausible global regulators of interest in NRRL 3504, implying that overall scheme of regulation of specialized metabolism in A3(2) and NRRL 3504 might be similar. Results of our work set the stage for a more detailed experimental scrutiny of silent specialized metabolome of NRRL 3504.
Influence of spontaneous silvatization on physicochemical properties of chernozem of extrazonal meadow-steppe plant communities of Botanical Reserve “Makitra” (National Nature Park “Northern Podillia”, Ukraine)
Authors:   Institute of Ecology of the Carpathians, NAS of Ukraine, Kozlovskyy V. , Romanyuk N. ,   Ivan Franko National University of Lviv, Yurechko R. ,   National Nature Park “Northern Podillia”
Published: November 2022

Meadow-steppe plant communities of the nature reserve territories of the National Nature Park “Northern Podillia”, in particular, the “Makitra” reserve located outside the steppe zone, as a result of the decrease in economic activity and the effect of the passive protection mode (absolutely reserved regime) of rare plant species populations are under the threat of spontaneous afforestation and may lose their original purpose. The changes that accompany the sylvatization process concern all components of the biogeocenosis. In the process of degradation of the grass phytocenosis, the morphological features and physical and chemical properties of the soil undergo changes too. Soil profiles were taken on the northeastern slope of Makitra Mountain, in the meadow-steppe plant association. We revealed that 12–15 years after the beginning of afforestation with Scots pine, chernozem under the primary meadow-steppe plant association possesses apparent signs of degradation throughout the depth of the profile: (1) degradation of surface organogenic horizons (Hc + Hd); (2) lowering the depth of the carbonate level in the profile by 10–15 cm; (3) loss of organic matter by 30–50 %; (4) reduction of cation exchange capacity by 15–20 %; (5) leaching of CaСО3 (>50 % from the H horizon) and other macro- (K, Na, Mg, Fe, Al) and trace elements (Cu, Zn, Mn, Ni, Pb) (up to 10–30 %). The intensity of leaching processes at the study time-point remains high, evidenced by the higher content of amorphous silica, aluminum, and water-soluble carbon in the soil at the afforestation stage, compared to virgin chernozem. The obtained results provide basics for predicting the soil development from typical chernozem under virgin meadow-steppe phytocenosis to leached chernozem (forest chernozem according to Travleev (2008)) in the process of overgrowing with Scots pine. In both cases, the soil-forming process is still within the framework of the humus-accumulative process of soil formation. However, taking into account the high intensity of degradation processes detected at the time of the research, there is a possibility of a significant increase in signs of leaching, which will indicate an impact on the development of the soil profile together with the chernozem (accumulative) and podzolic soil-forming processes.
Effect of interval fasting on the morpho-functional state of the pancreas in adult rats
Authors:   Bogomoletz Institute of Physiology, NAS of Ukraine, Yanko R. 
Published: November 2022

Literature data on the effect of interval fasting (IF) on the morphological and functional changes in the pancreas, especially its exocrine part, are rare. The aim of our work was to study the morphological changes in the exo- and endocrine pancreas of adult rats after the influence of IF. The study was carried out on 24 male Wistar rats at the age of 15 months. Experimental rats were on IF: 1 day – complete fasting / 2 days – standard diet. Access to water was free. The duration of the experiment was 28 days. Rats were decapitated under light ether anesthesia. Work with rats was carried out in accordance with the principles of the Helsinki Declaration. Histological preparations were made from the central part (the body of the gland) according to the standard method. From micropreparations of the gland, photographs were taken using a digital camera. Gland morphometry was performed on digital images using the «Image J» computer program. It was revealed that in the exocrine pancreas of adult rats that were on IF, the area of ​​acinus, nucleus of exocrinocytes increases and the number of nucleolus increases, the nuclear-cytoplasmic ratio increases. In the endocrine pancreas of experimental rats, more intense morphological changes occur, namely: its relative area probably increases (by 108 %), the average number of Langerhans islets increases (by 44 %) and their linear dimensions increase, the number of endocrine cells increases (by 20 %). Also in the gland of these animals, a decrease in the relative area of ​​the stroma (by 21 %) and the stromal-parenchymal index (by 28 %), as well as a decrease in the width of the layers of the interlobular (by 28 %) and interacinus (by 34 %) connective tissue, which improves conditions for the course of metabolic processes. Thus, the effect of IF is accompanied by the appearance of morphological signs of an increase in the activity of both the exocrine and endocrine (to a greater extent) pancreas in adult rats. The data obtained may be of interest for practical medicine when deciding whether to prescribe this type of hunger strike to people with reduced pancreas function.
E-BOOKS UTILISATION AND STUDENTS' ACADEMIC ACHIEVEMENT IN UNIVERSITIES IN LAGOS STATE, NIGERIA: IMPLICATION FOR EDUCATIONAL PLANNERS
Authors: Gbesoevi Emmanuel Semako , Oyelami Monsurat Lolade , Ola Bolanle Adeyemi , Jinodu Oluwatosin Gabriel 
Published: November 2022

This study examined e-books utilisations and students' academic achievement in universities in Lagos State: implication for educational planners. With the use of descriptive survey research methodologies, this study was driven by three research questions and three null hypotheses. All six of Lagos State's traditional universities make up the study's population. Three institutions were chosen using a straightforward random sampling method. Additionally, 150 final-year students from each of the studied institutions were chosen using a practical selection approach, resulting in 450 respondents from the three universities chosen for the study. A well-structured questionnaire titled "E-Book Utilisation and Students' Academic Achievement in Universities" was used to gather data (IEBSAAU). The test-retest reliability approach was used to validate the instrument, and it was determined to be reliable with a reliability coefficient of 0.79. The statistical technique Chi-Square was used to gather data. The findings showed significant relationship in the use of electronic books with X2 = (4, N = 450) = 246.462, P =.000; a significant relationship between computer literacy with X2 = (4, N = 450) = 206.431 , P =.000; a significant relationship between students ‘perception on the use of electronic books for academic progress with X2 = (4, N = 450) = 262.109 , P =.000 and student academic achievement. It is recommended that: E-book library should be set up and maintained in every university of study to boost interest and enlightens students and teachers on the importance of e-books to teaching and learning.
THE INFLUENCE OF DIGITAL LITERACY AND DIGITAL WORKPLACE ON E-LEADERSHIP OF EDUCATORS AND EDUCATION STAFF OF A STATE VOCATIONAL SCHOOL
Authors: Daswin Adri , Mahdum Mahdum , Hadriana Hadriana 
Published: November 2022

The development of information and communication technology has influenced the current leadership style. Leadership not only can be implemented face-to-face, but can also be done through the use of electronic devices and the internet, which is called e-leadership. This study aims to obtain an empirical picture about the influence of digital literacy and digital workplace on e-leadership of educators and education staff of State Vocational Schools 5 Pekanbaru – Riau, either partially or simultaneously. This research was conducted from January to June 2022, but the data was collected in March 2022. The research instrument was a questionnaire given to 95 educators and education staff selected as the samples. The obtained data then analyzed through descriptive statistics and inferential statistics. The results of data analysis show that digital literacy has a significant influence as many as 30% on e-leadership and the digital workplace has a significant influence as many as 47.1% on e-leadership. Simultaneously digital literacy and digital workplace influence as many as 32%. on e-leadership. This implies that it is necessary to improve the digital literacy and digital workplace skills of educators and education staff of State Vocational Schools 5 Pekanbaru – Riau to improve their e-leadership skills
PROFILING STUDENTS’ EXPERIENCES AND PERSPECTIVES ON USING VIDEO-TELECONFERENCING APPLICATIONS AS A LEARNING PLATFORM DURING PANDEMIC
Authors: Maulana Endrian , Daud Afrianto , Masyhur Masyhur 
Published: November 2022

This study aims to capture students’ profiles in terms of using video-teleconferencing (VTC) applications and to identify students’ perspectives on using the video-teleconference applications as a platform for English teaching and learning during the pandemic in the English department in Universitas Riau. This mixed-method study collected data from semi-structured interviews and an online questionnaire. The entire sophomores of the English Study Program of Riau University (n=39 students) were taken as the samples of the research. An analysis model from Miles & Huberman (2007) was used as the method to analyze the collected data. The results show that the majority (56.4 %) of the students used a mobile phone as a learning device and 59% of them relied on their own internet data for learning. The students had both positive and negative perspectives on the VTC applications. Most students thought the VTC-based learning was efficient for them. However, they reported some problems such as an unsupportive learning environment, lack of equipment, and unreliable internet connections. These problems imply that universities should provide more learning facilities for students to make online learning more effective.