bluuebunny/crossref_metadata_2025 huggingface dataset:
Elementary School Principals' Learning Leadership and Innovative Behavior in Using School-Based Management
Authors: Sirait Jumaria , Siajabat Osco Parmonangan , Napitupulu Selviana , Simanjuntak Fajar Ningsih , Purba Yoel Octobe
Published: May 2022

The study aimed to determine the effect of principals' learning leadership and innovative behaviour in implementing School-Based Management in SD Negeri Dolok Pardamean District, Simalungun Regency in 2021. This type of research was explanatory, so the appropriate method used was the survey method of 15 school principals as research respondents. The research instrument is a questionnaire containing 25 positive and negative statements with five answer choices located on a continuum line according to the Likert scale model and in the form of a closed questionnaire. Before being used, the questionnaire has been tested, and the results can be used as a research instrument. Data analysis techniques include descriptive analysis, requirements analysis tests, and hypothesis testing. Descriptive analysis was conducted to obtain an overview of the data from each research variable which was shown through the mean, median, mode, frequency distribution, and graphs. To identify the trend of each research variable, the average ideal score (Mi) and the ideal standard deviation (SDi) were used. Supported by the very strong learning leadership and innovative behaviour of the primary school principal; (3) Based on hypothesis testing, the results of the calculation of the value of th tt at a significance level of 0.05 are 5.96 2.02. The conclusion that there is a significant influence on learning leadership and innovative behaviour of elementary school principals in implementing School-Based Management is accepted as true.
Portraying Cendekia Leadership in the Perspective of Ki Hajar Dewantara’s Trilogy
Authors: Arifin Antoni Ludfi , Hermawan Eric
Published: May 2022

This study aims to describe the Cendekia leadership from the personality perspective of Ki Hajar Dewantara, the father of education in Indonesia. This research is a qualitative study that uses literature study as the method. Seven articles published in the national journal were used as the data of this study and then analyzed using content analysis method.  The results of the discussion of cendekia leadership in the perspective of Ki Hajar Dewantara's character from the first philosophy are (1) Ing Ngarso Sung Tuladha; good leadership must behave and speak well and become a role model, discipline, able to be role model for everyone, innovators, protector, educator, honest, wise, and serve wholeheartedly, (2) Ing Madya Mangun Karsa means always help other, motivating and encouraging to work hard, inspiring, have a sense of empathy and sympathy, as well as able to collaborate, (3) Tut Wuri Handayani means that a leader who can encourage his subordinates to be at the forefront of achievement and individuals who are strong in facing obstacles, smart, creative, have a sense of justice, giving freedom to express themselves, and encourage people to be independent, effective, and efficient at work.
Intellectual Capital and Knowledge Management in Higher Education: Concept, Implementation, and Barriers
Authors: Rahmat Adi
Published: May 2022

Intellectual capital has developed into an intriguing concept that is frequently debated by academics and professionals and has been shown to improve the performance of all types of businesses, including institutions. Through a systematic literature review, this research is expected to enable reflection on the critical role of intellectual capital management in establishing an organization's competitive advantage in higher education and the essential part of knowledge management and socialization opportunities in the development of social thinking in higher education institutions and organizations. Ten articles published in national and international journals were selected to analyze thematically as the research data. The findings report that intellectual capital management lays the groundwork for strategic planning and the commercial success of modern educational institutions. Rethinking processes and fostering knowledge formation, particularly concerning their impact on functional strategies, is critical for academic administrators to increase their competitive advantage, the strength of internal organizational structures, and the effectiveness of educational programs.
Principal Supervision of the Learning Process during Covid-19 Pandemic
Authors: Zulfikar Zulfikar , Harun Cut Zahri , Usman Nasir
Published: May 2022

The purpose of this study was to document the principal's efforts in overseeing teachers as they implemented in the learning process during the Covid-19 Pandemic. The descriptive method with a qualitative approach was employed in this study. Interviews and observation were used to acquire data. Purposive sampling was used to select the research subjects. The researchers determined the validity of the human instruments themselves. The data analysis process included data reduction, presentation of the data, and conclusion formation. The findings indicated that education supervision in Public Senior High School Bandar Baru District, Pidie Jaya Regency, occurred in different levels, including planning, implementation, and follow-up (evaluation). The principal is responsible for academic oversight, assisted by the vice-principal and senior teachers.
The Performance of Certified Educator Teachers in Managing Learning
Authors: Fanora Tifa Sri , Murniati Murniati , Bahrun Bahrun
Published: May 2022

This study aimed to determine the performance of certified teacher teachers in managing learning at a Private Madrasah Aliyah in Banda Aceh. The approach used in this research is qualitative. The type of research used in this research is descriptive. The results showed that the performance of certified teachers in managing learning had been made as much as possible so that it is carried out as expected. The supporting factors for the performance of certified educator teachers in managing learning consist of internal and external factors. Internal factors that hinder the learning process are influenced by the lack of experimental materials provided in the laboratory.
Management of Teacher Performance Appraisal in Madrasah
Authors: Juliana Juliana , Murniati Murniati , Bahrun Bahrun
Published: May 2022

The low performance of teachers will impact the quality of student graduation, which in turn will also affect the achievement of educational goals. The quality in the learning process can be grouped into the quality of the input, the quality of the process and the quality of the learning output. The purpose of this study was to see planning teacher performance appraisals, strategies for implementing teacher performance appraisals, and supervision of teacher performance appraisal. Data collection techniques through observation, interviews, and documentation study. The subjects of this study are school principals, supervisors, and teachers at a Madrasah in Banda Aceh. Data analysis used data reduction, data presentation, drawing conclusions and verification. The results showed: (1) teacher performance was carried out by the authorities stipulated by the government, based on the stated performance appraisal, had been running according to four teacher competency standards including; pedagogical competence, social competence, personal competence, and professional competence (2) the strategy for implementing teacher performance assessments can be seen from the ability of teachers to carry out the teaching and learning process, namely: preparing learning plans, managing the class, using media or learning resources, understanding educational foundations, implementing BK program, carry out learning evaluation, (3) the purpose of supervising teacher performance by supervisors consists of principals and supervisors to determine the professional level of teachers in work and determine the teacher's availability of instruments. This supervision will improve the quality of education so that teachers will not underestimate the learning process.
Results of the study of the periodontal status of patients with hypothyroidism
Authors: Bulgakova A.I. , Khafizova A.S. , Vasilyeva N.A. , Shafeev I.R.
Published: May 2022

This article presents the results of a clinical examination of the state of periodontal tissues in patients undergoing dispensary observation by an endocrinologist diagnosed with hypothyroidism of the primary and secondary forms. In patients with hypothyroidism, compared with patients without thyroid pathology, there is a deterioration in the parameters of periodontal indices: the Green-Vermillion hygiene index, the Silness-Loe gingival index, and the Russell periodontal index. Under conditions of hypothyroidism, patients were identified as subjective (dry mouth, bleeding gums during toothbrushing, the presence of dental plaque, progressive decay and loss of teeth) and objective (supra- and subgingival dental plaque, anemicity, edema of the oral mucosa (OOM) and alveolar processes, lining of the tongue, tooth mobility of varying degrees) changes in the oral cavity.
Credit Agreement Due To The Corona-19 Pandemic (Study of Wonosari District Court Decision Number 3/Pdt.G.S/2020)
Authors: Nasution Pani Chadijah , Perdana Surya , Arifin Muhammad
Published: May 2022

The corona pandemic as a delay in credit payments, the determination of the non-natural disaster Covid-19 as a national disaster through Presidential Decree 12/2020 does not automatically become the basis for parties in commercial agreements to declare themselves in a state of force majeure. In-depth study of case by case analysis by paying attention to the clauses in an agreement becomes the benchmark for determining the state of force majeure. As a result of parties who did not fulfill their achievements in the credit agreement during the Covid-19 period. The suspension of liability occurs when a force majeure event is temporary. When the condition of the obstacle has recovered, for example the export ban is lifted again, then the obligation of the seller returns to recover to hand over the exported goods. Agreement resulting from the corona 19 pandemic in the perspective of presidential decree no. 12 of 2020 concerning the determination of non-natural disasters (Wonosari State Court Decision Study Number 3 / Pdt.G.S / 2020) in agreements usually also regulates the consequences of a force majeure event, for example whether to postpone an agreement or can be used as a condition for canceling an agreement
Realizing People's Welfare in Economic Globalization, Perspective of the Law on Information and Electronic Transactions
Authors: Nazran Finna , Dewi Siregar Fitri Yanni
Published: May 2022

Globalization that occurs in the economic field today certainly affects the trade between several countries that are free. This is due to the fact that the use of technology has encouraged rapid business growth, because various information can be presented through long distance relationships and those who wish to conduct transactions do not have to meet face to face, but simply through computer and telecommunications equipment. Utilization of ITE Technology is carried out based on the principles of legal certainty, benefits, prudence, good faith, and freedom to choose technology or technology neutrality. This study aims to determine the development and concept of people's prosperity in economic globalization in Indonesia, with the presence of the ITE Law in creating a just economy. This research uses normative legal research which is descriptive analytical with a qualitative approach to primary data, secondary data and tertiary data which includes the content and structure of positive law. used as a reference in reviewing legal issues that are the object of study. The results of the study indicate that the existence of the ITE Law in creating a just economy at this time has major implications for the development of social life . Economic justice must be understood as a condition where the people control the course of economic activity, through the use of information and technology which is carried out based on the principles of legal certainty, benefits, prudence, good faith, and freedom to choose technology or technology neutrality. This is in line with the goals of the state as stated in the fourth paragraph of the Preamble to the 1945 Constitution.
CHALLENGING CASE OF PHEOCHROMOCYTOMA WITH ELEVATED CALCITONIN LEVEL
Authors: Rebrova Dina , Rusakov Vladimir , Fedorov Elisey , Krasnov Leonid , Sleptsov Ilya , Chernikov Roman , Semenov Arseny , Chichuk Igor , Sablin Ilya , Pushkaruk Aleksandr , Shihmagomedov Shamil , Mykhaylichenko Vyacheslav , Parshin Dmitry
Published: May 2022

Pheochromocytoma, or adrenal paraganglioma, is a neuroendocrine tumor of the adrenal medulla. In the vast majority of cases, pheochromocytoma is a hormonally active tumor with hypersecretion of catecholamines: adrenaline, norepinephrine, dopamine. However, due to the neuroendocrine origin of the tumor, extremely rare cases of ectopic hypersecretion of other peptide hormones by pheochromocytoma have also been described, such as adrenocorticotropic hormone, somatostatin, neuropeptide Y, methenkephalin, and vasoactive interstitial peptide. In the available literature in Russian and English, we found only four cases of calcitonin secretion by pheochromocytoma, the earliest of which was published in 1977. Examination of a 38-year-old female patient with hypertension (chronically high blood pressure involved sympathoadrenal crises with vegetative dysfunction) revealed a large tumor of the right adrenal gland up to 78 mm. Detailed radiation characteristics of the tumor by ultrasound, computed tomography (CT), magnetic resonance imaging, and positron emission tomography with CT with 18-fluorodeoxyglucose were presented. The results of laboratory tests established hyperproduction of catecholamines by the tumor. In addition, a repeated increase in the level of calcitonin in the blood was revealed, which, in the absence of a genetic study of the RET proto-oncogene, did not allow to exclude the multiple endocrine neoplasia (MEN) type 2. After surgical treatment, the level of calcitonin in the blood decreased to undetectable, which suggested hyperproduction of calcitonin by pheochromocytoma. This hypothesis was confirmed by the results of histological and immunohistochemical studies of the surgical material. Ectopic production of calcitonin by pheochromocytoma is not typical and is extremely rare, but its development is possible, which should be taken into account when observing its elevated level in patients with pheochromocytoma. Preoperative genetic testing in such cases may significantly reduce the risk of developing medullary thyroid carcinoma in patients without hereditary MEN2.
CHARACTERISTICS OF IMMUNOREACTIVITY IN PATIENTS WITH VARIOUS FORMS OF DIABETIC FOOT ULCER
Authors: Mykhaylichenko Vyacheslav , Kaibov Izmed , Bondarenko Nadezhda , Parshin Dmitry , Puchkina Galina
Published: May 2022

The article presents a comparative assessment of the levels of cytokines that regulate the differentiation of various macrophage phenotypes, as well as immunological responses in patients with diabetes. We examined and treated 245 patients who were allocated to two groups. The first group comprised neuropathic patients (comparison subgroup 1A without DFU, n=30 and subgroup 1B with DFU, n=80). The second group included patients with neuroischemic type 2 diabetes (comparison subgroup 2A without DFU, n=35 and subgroup 2B with DFU, n=100). As an indicator of hyperglycemia, the glycated hemoglobin level (HbA1c) was used, which was determined on the DCA 2000 device by the method of latex immunoagglutination inhibition using the “Hemoglobin A1c Reagent kit”. The concentration of cytokines TNF-α, IFN-γ, IL-6, and OPG in blood serum was determined on the first day of hospitalization before surgery using enzyme immunoassay test systems (OOO “Cytokine”, St. Petersburg) in accordance with the manufacturer's instructions. An imbalance of cytokines was revealed, indicating a shift in immunomodulatory responses, aggravation of metabolic and vascular disorders in tissues, accompanied by an inadequate course of the inflammatory and reparative process and the formation of a diabetic foot ulcer.
MORPHOLOGICAL FEATURES OF DENTAL ARCH SHAPE AND SIZE WITHIN BABY TEETH BITE PERIOD
Authors: Kochkonyan Taisiya , Domenyuk Dmitry , Shkarin Vladimir , Dmitrienko Sergey , Domenyuk Stanislav
Published: May 2022

The study of morphometric characteristics of baby teeth bite dental arches presents an urgent issue for morphology and pediatric dentistry. To identify the morphological features of the baby teeth bite, dental arch biometrics was done involving children aged 3-5, while following the recommendations from the Ethics Committee. The measurements relied on baby teeth odontometry, with the length of the dental arches, their transversal and diagonal dimensions identified, all this followed by the construction of diagnostic triangles. The study showed the rate between the dental arch width with the length, the width sum of the 10 baby teeth crowns and the magnitude of the systemic component. The data obtained through the study served to determine the rate between the dental arch diagonals and the odontometric indicators, as well as enabled to identify the value of the dental-diagonal coefficient, which is 1.01±0.01 for the upper arch and 1.02±0.01 for the lower jaw dental arch.
PHYSICAL-CHEMICAL AND METABOLIC PROCESSES IN ORAL CAVITY: THEIR INTERACTION IN DENTAL PERI-IMPLANTITIS AND CHRONIC PERIODONTITIS
Authors: Tlustenko Vladimir , Golovina Elena , Tlustenko Valentina , Gilmiarova Frida , Gusyakova Oksana
Published: May 2022

Intraosseous dental implantation is considered to be the most effective and technologically advanced method employed to restore individual and multiple dentition issues. It offers potential for significant improvement of comprehensive rehabilitation in dental patients. However, positive outcomes of the implantation that enable restoration of the dentition integrity, complete compensation of the patient’s chewing function and aesthetic looks, does not rule out complications involving inflammation. It still remains relatively high, within the range of 8 to 15%. Peri-implantitis, if taken as inflammation affecting the soft tissues around the implant, bears signs of bone destruction and accounts for one of the most common complication. The comprehensive study described here was aimed at evaluating the dental status, as well as the physical-chemical and metabolic parameters of the oral fluid in patients with dental peri-implantitis (n=31), chronic localized periodontitis (n=30) and chronic generalized periodontitis (n=30). The control group included patients (n=30) with no signs of dental pathology, all comparable in terms of their age and gender. In patients with dental peri-implantitis, chronic localized periodontitis and chronic generalized periodontitis, we revealed unidirectional dynamics of the oral fluid parameters (electrical conductivity, redox potential, concentration of calcium, magnesium, ammonium cation), the values being different, though. The identified features of the metabolic status of oral fluid will increase our understanding of pathogenetic mechanisms underlying peri-implantitis.
MICROWAVE ESTIMATION OF DIELECTRIC PROPERTIES OF BIOLOGICAL TISSUE UNDER THERMAL MODIFICATION
Authors: Martusevich Andrew , Nazarov Vladimir , Bocharin Ivan , Surovegina Alexandra , Guryanov Maxim , Suldin Pavel , Voevodkina Lira
Published: May 2022

The aim of this study was to estimate changes of tissue dielectric parameters under the action of high temperature. We fixed the shifts of dielectric properties of biological tissue samples, associated with short-time influence of high temperature (600C, 5 min.) in vitro. The dielectric properties of tissues (permittivity - ε and conductivity - σ) were determined using original software and hardware complex for near-field resonant microwave sensing developed at the Institute of Applied Physics of the RAS. The study of these parameters was performed at a depth of 5 mm. It was found that short processing of a biological sample in moderate hyperthermia (600C) leads to significant change of dielectric characteristics of the tissue. This is manifested in a significant decrease in the dielectric permittivity (in 2.48 times for an intact specimen) and conductivity (on 25.3%) of the studied biological sample, due to its dehydration. It was shown that used regimen of heating decreases the permittivity and conductivity of tissue specimen that is associated with changes of its hydratation.
STRUCTURE OF THE EXCRETORY DUCT OF THE PAROTID SALIVARY GLAND: HISTOLOGICAL AND IMMUNOHISTOCHEMICAL FEATURES
Authors: Volosova Ekaterina , Zayratyants Oleg , Kuzin Alexander , Panin Andrey , Shishkanov Andrey , Tsitsiashvili Alexander , Kochkonyan Taisiya
Published: May 2022

There are a number of reasons that lead to inadequate salivation or complete cessation of salivation. Among others, one of the main can be systemic diseases like Sjögren’s syndrome, and the use of medication, dysbiotic changes in oral cavity and stress. Most often, patients with xerostomia disturbed itching and burning in the mouth, taste disturbance, difficulty in speaking and swallowing food (especially dry), and difficulty wearing dentures. Hypofunction of salivary glands can lead to different outcomes in the mouth. The most common are, first of all, the loss of gloss of the oral mucosa, it atrophic changes, the appearance of fissures and lobes on the back of the tongue, the development of angular cheilitis, dysbiotic change, and the development of multiple caries. If xerostomia oral mucosa requires compliance with the rules of oral hygiene and constant daily moisturizing. The best method of relief of patients is to stimulate the secretion and the mandatory use of wetting agents to the oral mucosa. A thorough intra-oral and extra-oral clinical examination is important for diagnosis. Treatment may include the use of salivary substitutes (Biotene), salivary stimulants such as pilocarpine, ongoing dental care, caries prevention, a review of the current prescription drug regimen and possible elimination of drugs having anticholinergic effects. The article presents the results of histological and immunohistochemical features of the structure of the main excretory duct of the parotid salivary gland for the presence of muscle structures in it and clarifying the possibility of their influence on the development of xerostomia.
EFFECT OF SOWING SPEED AND WIDTH ON SPACING UNIFORMITY OF PRECISION SEED DRILLS
Authors: FANIGLIULO Roberto , GRILLI Renato , BENIGNI Stefano , FORNACIARI, Laura , BIOCCA Marcello , POCHI Daniele
Published: May 2022

The precision seed drills significantly improve the competitiveness of farms, in terms of sowing quality and yield. This paper refers to the field performance of the tractor-seed drill system and the seed spacing uniformity with reference to three precision drills with 4, 6 and 8 sowing units, respectively. The tests have been conducted using graded maize and sugar beet seeds, according to ISO 7256-1:1984 standard, under three speed conditions (5.0, 6.5 and 8.0 km h-1). The seed drills showed high values of the quality of feed index (> 90%) even at the higher speed. The multiples index and the miss index were very low.
DIFFERENCES OF INTEGRATION PRIORITIES OF EUROPE, THE MIDDLE EAST AND AFRICA COUNTRIES
Authors: Zhyvko  , Zapukhlyak Vitaliy , Zastavny Andriy
Published: May 2022

The subject of the study is the integration priorities in Europe, the Middle East and Africa.
The aim of the article is to identify differences in integration priorities in Europe, the Middle East and Africa and to identify common aspirations in the regions.
Methodology (method). Achieve the goal and solve the outlined tasks in the research process used general and special methods: logical, analysis and synthesis, generalization and quantitative comparison, visualization.
Results. The main differences between the integration priorities of Europe, the Middle East and Africa are considered. Large-scale integration shifts in the studied regions are singled out and economic and political processes that played a role in the formation of integration groups taking into account interests with the use of various forms of economic integration are detailed. The number of existing regional trade agreements in the regional context by types of agreements is analyzed. Global subjects of world trade by region are studied, taking into account the importance of the EU in the global economy, which is characterized by a high degree of integration processes. The main integration priorities for the EU member states, compliance with a set of rather strict requirements, due to restrictions on production in agriculture and the real sector of the economy, foreign trade specialization and geography of trade flows of the new member states have been identified. It was confirmed that in order to strengthen integration processes it is necessary to take possible approaches to regional integration in institutional and technological terms. The growing role of the Middle East and Africa based on economic and trade processes in the region and the availability of fuel resources is confirmed. The structure of regional integration associations in Africa is considered and the export of goods between the countries of integration associations within groups is studied.
MECHANISM FOR ENSURING SUSTAINABLE DEVELOPMENT OF AGRICULTURAL ENTERPRISES ON THE BASIS OF CIRCULAR ECONOMY
Authors: Strapchuk Svitlana
Published: May 2022

The lack of a systematic approach to determining the economic content of the mechanism for sustainable development of agricultural enterprises requires improving theoretical and methodological principles, clarifying its basic elements, their evolution, coordination with the practice and interdependence of individual components and tools. The aim of the study is to develop scientific and practical approaches to the design of a sustainable development mechanism of agricultural enterprises of Ukraine, based on the strategy of circular economy, with regard to economic laws, global trends and new concepts in sustainable business management through generalization of the world practices of improving state regulation of sustainable agriculture. This study contributes to the development of a systematic view on sustainable development process of agricultural enterprises, relate to the implementation of circular economy strategies in agriculture. The results confirm that the principles of circular economy can be implemented through an effective combination of government regulation through legal aspects, including the development of organizational and legal forms, state support for producers, product quality and safety and management, levers of pricing, credit, tax and investment policies. Agricultural enterprises implement principles of sustainable development through the tools of the circular economy; they include the involvement of resource-saving and environmentally friendly technologies; introduction of corporate environmental management; enterprise investments in sustainable agricultural practices; use of the strategy of progressive integration; reduction of material and energy consumption, as well as production wastes, their further utilization; use of grant opportunities; application of innovative marketing and digital technologies in the production and sale of products; use of the benefits of private partnerships and the development of appropriate business models.
Morphological Characteristics and Shell Color Of Littoraria pallescens Prosobrancia Molusca From Different Mangrove In Tongkaina Waters, Manado City
Authors: Salawati Vellysa Friendly , Mantiri Desy Maria Helena , Boneka Farnis Bineada , Mamangkey Noldy Gustaf Frans , Warouw Veibe , Kalesaran Ockstan
Published: May 2022

The purpose of this study was to identify sea slugs L. pallescens taken from two different mangroves, namely Rhizophora mucronata and Avicennia marina in Tongkaina waters, Bunaken District, Manado City based on morphology and anatomy as well as shell color. Identification of mangroves and sea slugs refers to the identification book. The results obtained were L. pallescens species with elongated and tapered morphology at the end of the shell measuring 0.3-2.7 cm. The operculum is purple. The color of the shell obtained was 66.85% consisting of dark colors (black, black, orange, brown and gray spots), occupying the stems and roots of the mangrove, while the light colors (yellow, yellow, dark spots and red) were found to be 33.15%, occupying the leaves and stems of mangroves. The high survival rate of L. pallescens was found in the mangrove roots. This species was found in R. mucronata by 65.26% while in A. marina only 34.74%, this could be caused by differences in the shape of the mangrove roots.Keywords: L. pallescens; Mangrove; Shell color; MorphologyAbstrakTujuan penelitian ini adalah mengindentifikasi siput laut L. pallescens yang diambil dari dua mangrove berbeda yaitu Rhizopora mucronata dan Avicennia marina di perairan Tongkaina, Kecamatan Bunaken, Kota Manado berdasarkan morfologi dan anatomi serta warna cangkang. Identifikasi mangrove dan siput laut merujuk pada buku identifikasi. Hasil penelitian yang diperoleh yaitu spesies L. pallescens dengan bentuk morfologi memanjang dan meruncing, pada bagian ujung cangkang berukuran  0,3-2,7 cm. Operculum berwarna ungu. Warna cangkang yang diperoleh 66,85% yang terdiri dari warna gelap (hitam, hitam bercak orange, coklat dan abu-abu), menempati bagian batang dan akar mangrove sedangkan warna terang (kuning, kuning bercak gelap dan merah) didapat 33,15%, menempati bagian daun dan batang mangrove. Tingginya kelangsungan hidup  L. pallescens berada pada bagian akar mangrove. Spesies ini ditemukan pada R. mucronata sebesar 65,26% sedangkan pada A. marina hanya 34,74%, hal ini dapat disebabkan oleh karena perbedaan bentuk akar mangrove.  Kata Kunci: L. Pallescens; Mangrove; Warna cangkang; Morfologi
Evaluation of 16S rRNA Gene Sequence for DNA Barcoding of Tuna Fish
Authors: Kolondam Beivy J
Published: May 2022

For fish product authentication, DNA barcoding has been a reliable tool. This is due to its requirement of a small amount of tissue sample in order to conduct a full analysis for species identification. This research aimed to conduct an assessment for the use of 16S rRNA gene sequence for tuna fish identification through DNA barcoding. Previous in silico studies using the COI gene and CYB gene were conducted using the same tuna fish specimens. A comparison of 16S rRNA gene sequence between Bluefin tuna (five species), Yellowfin tuna (three species), and another group of tuna (five species) showed the reliability of this gene in differentiating all species represented by the respective specimens. The multiple sequence alignment of 1695 bp in this research is reliable for accurate identification. All specimens of Thunnus (Bluefin group and Yellowfin group) were able to be differentiated with other genera (Auxis, Euthynnus, and Katsuwonus) group in 27 sites. The other tuna fish genera group members are similar in 27 sites and the member Thunnus group has a polymorphism in the same location. The similarity among the Bluefin group is 99.3% to 99.8%. The similarity among Yellowfin group is 99.6% to 99.9%. The similarity among the other group is 97.5% to 99.5%. In conclusion, the 16S rRNA gene is a reliable marker for DNA barcoding of tuna fish.Keywords: DNA barcoding; 16S rRNA gene; tuna fishAbstrakUntuk kepentingan autentikasi produk-produk dari ikan, DNA barcoding merupakan perangkat yang dapat diandalkan. Ini disebabkan karena metode ini hanya membutuhkan sedikit sampel jaringan untuk analisis identifikasi spesies. Penelitian ini bertujuan untuk melakukan asesmen penggunaan sekuens gen 16S rRNA untuk identifikasi ikan tuna melalui DNA barcoding. Studi in silico sebelumnya untuk gen COI dan gen CYB dilaksanakan menggunakan spesimen ikan tuna yang sama. Perbandingan sekuens gen 16S rRNA antara kelompok ikan tuna Bluefin (lima spesies), kelompok ikan tuna Yellowfin (tiga spesies), dan kelompok ikan tuna jenis lain (lima spesies) menunjukkan kemampuan gen ini dalam membedakan semua spesies. Dari hasil yang diperoleh, penjajaran multisekuens dari 1695 bp dapat diandalkan untuk indentifikasi yang akurat. Semua spesimen genus Thunnus (kelompok Bluefin dan kelompok Yellowfin) dapat dibedakan dengan spesimen lainnya pada 27 titik nukleotida. Kelompok tuna jenis lain juga memiliki nukleotida yang seragam di 27 lokasi dibandingkan dengan yang dari genus Thunnus. Tingkat kesamaan antar spesimen kelompok tuna Bluefin yaitu 99,3% sampai 99,8%. Tingkat kesamaan antar spesimen kelompok tuna Yellowfin yaitu 99,6% sampai 99,9%. Tingkat kesamaan antar kelompok tuna jenis lain yaitu 97,5% sampai 99,5%. Dari penelitian ini dapat disimpulkan bahwa gen 16S rRNA merupakan gen yang dapat diandalkan untuk DNA barcoding ikan tuna.Kata-kata kunci: DNA barcoding; gen 16S rRNA; ikan tuna
Application of The Admiralty Method to Process Tidal Data in the Waters of The Nasik Strait - Bangka Belitung
Authors: Pasaribu Roberto Patar , Sewiko Roni , Arifin Arifin
Published: May 2022

Tides are the rise and fall of sea level caused by the attraction of objects in the sky, especially the moon and sun, to the mass of seawater on earth. Tidal research is useful for providing information about the components and types of tides and predicting tides and for mitigating natural disasters. Tidal measurements were carried out in the Nasik Strait, Bangka Belitung using the Valeport 106 tool. Tidal data was processed using the Admiralty Method. The Admiralty method is a method used to calculate tidal harmonic constants from observations of water levels. With this method, it is possible to know the amplitude and phase difference of the tides, the value of the Formzahl number, and the type of tide. From the results of data processing and analysis, the value of the Formzahl number in the waters of the Nasik Strait is 11,454 and the tidal type is a single daily tidal type that only occurs at one high tide and one low tide in one day.Keywords: tides; tidal types; admiralty method; formzahl numberAbstrakPasang surut adalah naik turunnya muka air laut yang disebabkan oleh gaya tarik benda-benda di langit, terutama bulan dan matahari terhadap massa air laut yang ada di bumi. Penelitian pasang surut bermanfaat untuk memberikan informasi mengenai komponen dan tipe pasang surut serta  memprediksi pasang surut serta untuk mitigasi bencana alam. Pengukuran pasang surut dilakukan di Perairan Selat Nasik, Bangka Belitung dengan menggunakan alat Valeport 106. Data pasang surut diolah dengan menggunakan Metode Admiralty. Metoda Admiralty merupakan metode yang digunakan menghitung konstanta harmonik pasang surut dari pengamatan ketinggian air. Dengan metoda ini dapat diketahui  amplitudo dan beda fase pasang surut, nilai bilangan Formzahl dan tipe pasang surutnya. Dari hasil pengolahan dan analisa data diperoleh nilai bilangan Formzahl di perairan Selat Nasik yaitu 11,454 dan tipe pasang surut adalah tipe pasang surut harian tunggal yang hanya terjadi satu kali pasang dan satu kali surut dalam satu hari.Kata Kunci: pasang surut; tipe pasang surut; metode admiralty; bilangan formzahl
Efektivitas Senam Dismenore dan Musik Klasik Terhadap Penurunan Dismenore Pada Remaja
Authors: Djimbula Nurmala , Kristiarini Juda Julia , Ananti Yustina
Published: May 2022

Latar belakang: dismenore merupakan nyeri atau kram perut bagian bawah pada saat menstruasi. Dampak dismenore yang terjadi pada remaja yaitu dapat mengganggu aktivitas sehari-hari. Upaya untuk mengatasi dismenore dapat dilakukan secara farmakologi dan non-farmakologi. Memberikan terapi senam dismenore dan musik klasik mozart dapat membantu mengurangi nyeri secara non farmakologi.
Tujuan: penelitian menganalisis efektivitas senam dismenore dan music klasik terhadap penurunan dismenore pada remaja. Metode: quasy eksperimen dengan rancangan two group pretest-posttest. menggunakan purposive sampling, jumlah sampel 92 orang yang terbagi menjadi 46 remaja senam dismenore dan 46 remaja musik klasik. analisis data menggunakan wilcoxon dan mann-whitney.
Hasil: uji wilcoxon didapatkan rata-rata sebelum dan sesudah diberikan senam dismenore ρ-value 0.000 <0.05, dan musik klasik ρ-value 0.000 <0.05. berdasarkan uji mann-whitney didapatkan rata-rata sesudah diberikan senam dismenore dan musik klasik menunjukkan ρ-value (0.313 >0.05) artinya tidak terdapat perbedaan penurunan dismenore yang signifikan antara senam dan musik klasik sesudah diberikan perlakukan pada remaja putri.
Kesimpulan: senam dismenore dan musik klasik sama-sama efektif menurunkan dismenore.
Detección de zonas inactivas en una olla metalúrgica
Authors: Aguilar Corona Alicia , Solorio Díaz Gildardo , Aguilar Ávila Gerardo
Published: May 2022

La agitación del acero fundido en la olla metalúrgica durante el proceso de refinado secundario es importante ya que asegura la correcta homogeneización de la composición química y térmica. En este trabajo, un modelo de agua de olla metalúrgica agitada  con gas es estudiado utilizando la configuración de tapón poroso que se utiliza en el prototipo industrial. Se utilizan dos técnicas de análisis de fluidos para determinar las zonas inactivas o menos agitadas; la técnica de colorimetría y la técnica de velocimetría de imágenes de partículas. La primera permite un análisis global del movimiento del líquido en la olla y la segunda analiza el plano de inyección de aire y el centro de la olla. La identificación de las zonas inactivas permitirá diseñar diferentes configuraciones de tapones porosos, que promuevan un mejor mezclado y consecuentemente la reducción de zonas de baja agitación.
Determination of the electron trap level in Fe-doped GaN by phonon-assisted conduction phenomenon
Authors: Fukuda Hiroki , Nagakubo Akira , Usami Shigeyoshi , Ikeda Masashi , Imanishi Masayuki , Yoshimura Masashi , Mori Yusuke , Adachi Kanta , Ogi Hirotsugu
Published: May 2022

We acoustically measured the energy level for thermally activated conduction (TAC) in high-resistivity Fe-doped GaN using the non-contacting antenna-transmission acoustic-resonance method. The acoustic attenuation takes a maximum at a specific temperature, where the TAC is accelerated with the help of phonon energy. The Debye-type relaxation is thus observed for acoustic attenuation, and its activation energy (0.54

±

0.04 eV) was determined with attenuation measurements at various frequencies and temperatures. This value agrees with the E3 level in GaN, indicating that thermally associated conduction originates from the E3 trap level. We also measured the five independent elastic constants at high temperatures.
Биокатализ крахмала кукурузы термостабильной α-амилазой в двухшнековом экструдере
Authors: Шариков Антон Юрьевич , Иванов Виктор Витальевич , Амелякина Мария Валентиновна , Середа Анна Сергеевна , Поливановская Дарья Викторовна
Published: May 2022

Традиционные технические решения в области ферментативного гидролиза крахмала и крахмалсодержащего сырья предполагают многостадийную водно-ферментативную обработку субстрата, включая стадии разваривания, разжижения, декстринизации, упаривания и сушки, в случае производства готовой продукции в порошкообразном виде. В качестве альтернативы такого многоэтапного процесса предлагается использование экструзионной техники, которая помимо использования в производстве продуктов питания, ингредиентов и кормов находит применение в качестве химических реакторов, заменяя традиционные емкостные реакторы периодического действия. Проведено исследование влияния гидротермомеханических режимных параметров, влагосодержания и дозировки термостабильного амилолитического фермента на процесс экструзии крахмала и степень его гидролиза в камере двухшнекового экструдера. Установлено, что температурный диапазон 112-122 °С является оптимальным для осуществления процесса биокатализа. Максимальное значение декстрозного эквивалента 13,6 достигнуто при влагосодержании 36% и дозировке α-амилазы 6 ед.АС/ г крахмала. Показано, что декстрозный эквивалент при экструзии крахмала с данным количеством фермента даже при влажности 20% составляет 12,6. Остаточная амилолитическая активность экструдатов варьируется в диапазоне от 0,2 до 0,55 ед. АС в зависимости от начальной подачи фермента в камеру экструдера, что свидетельствует о неполной инактивации α-амилазы в процессе экструзии даже при температурных режимах, превышающих оптимум действия α-амилазы. Установлено, что в отличие от экструдирования крахмала без фермента увеличение влагосодержания при внесении α-амилазы способствует росту растворимости и снижению влагоудерживающей способности экструдатов. Результаты исследования показали возможность проведения непрерывной биокаталитической реакции гидролиза крахмала непосредственно в камере экструдера, что позволяет получать гидролизаты с низкой влажностью в одну стадию, исключая этапы водно-тепловой обработки низкоконцентрированных крахмальных сред, их упаривание и последующую распылительную сушку.
Анализ дисперсного состава яичного белка методом микроскопирования
Authors: Соколов Сергей Анатольевич , Яшонков Александр Анатольевич
Published: May 2022

В содержимом куриного яйца находятся в оптимальном соотношении все питательные вещества, необходимые для развития и поддержания жизни организма человека. Однако, даже при сравнительно непродолжительном хранении свойства яиц заметно изменяются в худшую сторону. Применяемая в настоящее время пастеризация, а также наиболее распространенные способы консервирования жидких яйцепродуктов – сушка и замораживание не обеспечивают микробиологическую стабильность и сохранность полезных свойств  продукта в течение его длительного хранения. В рамках исследований установлено, что обработка высоким давлением не только инактивирует микроорганизмы, но и придает новые полезные потребительские характеристики пищевым продуктам. В работе рассмотрены вопросы определения дисперсного состава образцов яичного белка методом микроскопирования. Проведен анализ дисперсного состава яичного белка после действия различного фиксированного давления при комнатной температуре. Определены зависимости площади и среднего диаметра частиц в белке от давления. Предложена математическая модель кинетики денатурации и коагуляции частиц яичного белка после его обработки внешним гидростатическим давлением при комнатной температуре. Установлено, что с повышением давления средний эквивалентный диаметр частиц в образце яичного белка после обработки давлением увеличивается. После действия давления 1009,9 МПа средний эквивалентный диаметр частиц образца увеличивается в 3,799 раза, по сравнению со средним эквивалентным диаметром частиц в яичном белке, обработанном давлением 220,4 МПа.
Амоксициллин и янтарная кислота: Эффективные лекарственные средства для защиты здоровья животных (обзор)
Authors: Комаров Александр Анатольевич , Енгашев Сергей Владимирович , Енгашева Екатерина Сергеевна , Удавлиев Дамир Исмаилович , Егоров Михаил Алексеевич , Уша Борис Вениаминович , Селимов Ренат Наилевич , Гламаздин Игорь Геннадьевич
Published: May 2022

Обеспечение активно развивающегося в последние годы отечественного животноводства и птицеводства эффективными и недорогими лекарственными средствами для животных, в том числе, и для увеличения конкурентоспособности отечественной продукции при экспорте за счет повышения рентабельности производства и  снижения затрат  на ветеринарно-санитарные мероприятия  является одним из приоритетных задач  направления Стратегии научно-технологического развития Российской Федерации. Одной из ключевых задач для создания безопасных и качественных продуктов питания является разработка, производство и рациональное применение эффективных и безопасных средств защиты здоровья сельскохозяйственных животных. Цель нашего обзора является обоснование разработки инновационных средств защиты здоровья сельскохозяйственных животных за счет использования невысоких доз антибиотика амоксициллина в комбинации с янтарной кислотой. Перспективность разработки лекарственных средств ветеринарного назначения на основе амоксициллина обусловлена широким спектром  бактерицидного действия в отношении аэробных грамположительных и грамотрицательных бактерий, хорошей растворимостью, биодоступностью, быстрой абсорбцией из желудочно-кишечного тракта, на которую не оказывает влияние прием пищи, высокой устойчивостью к желудочному соку, что позволяет эффективно использовать его не только в инъекционных, но и оральных лекарственных формах. Но восприимчивость бактерий к антибиотикам серьезно снижается, когда бактериальные клетки формируют так называемые биопленки – устойчивые  колонии-конгломераты, окруженные внеклеточным полимерным веществом. Плотная структура колоний клеток в биопленках и наличие покрывающей их полимерной матрицы существенно осложняет контакт антибиотиков с бактериальными клетками. Из-за этого устойчивость бактерий к антимикробным препаратам в биопленках гораздо выше по сравнению с одиночными  бактериями. Поэтому инфекции, сопряженные с образованием возбудителями биопленок, гораздо труднее поддаются лечению антибиотиками и часто становятся рецидивирующими. Учитывая распространенность таких инфекций, целесообразной является разработка антибактериального препарата, содержащего антибиотик амоксициллин в комбинации с компонентом, способным вызывать разрушение биопленок. Таким компонентом является янтарная кислота. Механизм этого явления объясняется тем, что янтарная кислота способствует разрушению бактериальных пленок и, таким образом, увеличению площади контакта антибиотиков с бактериальными клетками.
The Concept of Liberty and the Place of Power: A Feminist Perspective
Authors: Hirschmann Nancy J.
Published: May 2022

This paper examines the relationship between freedom and power from a feminist perspective. Arguing for a social constructivist approach to freedom that questions the givenness of subjectivity and desire, I argue for a concept of freedom that simultaneously accepts the importance the subject-generated choice and questions how far freedom can rely on such a conception.
L’oligarchia e i suoi critici nel XXI secolo
Authors: Azzolini Giulio
Published: May 2022

This article presents and discusses the main anti-oligarchic critiques of contemporary political theory. Oligarchy as plutocracy is the focus of liberal and some Marxist theories. Against oligarchy as a corrupt regime, neo-republican and, again, Marxist approaches are directed. Oligarchy as the command of the few is, instead, the etymological meaning rediscovered by the elitist tradition, that the author suggests rethinking in a democratic and progressive perspective.
Obstructive Sleep Apnea: A complete Review for Dentists
Authors: Patel Dr. Ajay Ghanshyambhai
Published: May 2022

Obstructive Sleep Apnea is a complex disorder and has the characteristic finding of collapse of the upper airway during sleep. The effects of OSA may be widespread and can affect the cardiovascular, pulmonary, and neurocognitive systems. OSA has higher prevalence in men than women. The clinical symptoms can help to identify patients with OSA but it is also common to have no signs and symptoms in the initial stages. Obesity can be a contributing factor for OSA. OSA is identified as a major factor for cardiovascular morbidity such a systemic and pulmonary hypertension, heart failure, atrial fibrillation, and other arrhythmias. The screening for OSA includes the use of symptom questionnaire, CBCT for airway measurements, and confirmed by polysomnography. The management primarily includes the use of continuous positive airway pressure, orthodontic options, and surgical options.