bluuebunny/crossref_metadata_2025 huggingface dataset:
Wschodnie „laboratorium” kontroli konstytucyjności. Recenzja publikacji: Constitutional Courts in Post-Soviet States, red. Jacek Zaleśny
Authors: Olechno Artur
Published: March 2021

The presented review article is devoted to the monograph Constitutional Courts in Post-Soviet States, edited by Jacek Zaleśny. The researcher points to the originality and topicality of the undertaken subject, correctly selected team of authors, detailed presentation of stages of formation of the model of constitutionality control in selected post-Soviet states, demonstrating their position as distinct from the classical model of Hans Kelsen. We are dealing with a new, eastern “laboratory” of constitutionality control. Its experiments should be followed by both the external legislator and the individual participants of the post-Soviet political scene.
Analisis Persepsi Masyarakat Lokal Terhadap TPA Baru Wilayah Barat Bojonegoro dengan Metode SEM
Authors: Firdausi Rizal Zubad , Budianto Agus
Published: March 2021

Pengetahuan persepsi publik terhadap TPA di wilayah baru dibutuhkan dalam perencanaan kebijakan untuk menerapkan dan mengoperasikan TPA Baru di Bojonegoro, terutama persepsi dari masyarakat disekitar TPA. Studi ini menjelaskan persepsi masyarakat sekitar TPA dengan metode Structural Equation Modeling dengan asumsi hubungan kasual antara variabel laten status sosial, persepsi informasi, kepercayaan, persepsi manfaat, dan persepsi resiko pada penerimaan masyarakat lokal terhadap TPA Baru. Dari hasil uji keseluruhan model dengan nilai chi-square sebesar 364,508, terdapat 4 kriteria dinyatakan baik (good fit), 7 kriteria dinyatakan sedang (marginal fit) dan 3 kriteria dinyatakan buruk (poor fit). Artinya model ini bisa dikategorikan sedang (mendekati baik), sehingga cukup layak untuk dijadikan model analisis. Sedangkan hasil dari uji kecocokan model menununjukkan hubungan dari struktur model diperoleh bahwa hubungan status sosial hanya bernilai signifikan terhadap variabel persepsi manfaat, yang ditunjukkan dengan hasil t-value (3,003) > 1,96 dan -value (0,027) < 0,05. Artinya bahwa status sosial masyarakat berpengaruh signifikan terhadap persepsi mengenai manfaat TPA, sedangkan persepsi penerimaan terhadap TPA Baru secara signifikan dipengaruhi dari persepsi informasi dan persepsi manfaat masyarakat sekitar TPA, hal ini mengkonfirmasi bahwa persepsi penerimaan masyarakat terhadap TPA baru sangat dipengaruhi oleh faktor penerimaan informasi dan persepsi manfaat yang dirasakan.
Studi Eksperimental Pengaruh Panjang Penyangga Magnet pada Getaran Batang dengan Eddy Current Tuned Mass Damper
Authors: Efendi Rizal , Noerpamoengkas Ardi , Maulana Hasan Syafik
Published: March 2021

Getaran dengan amplitudo berlebih bersifat destruktif dan perlu direduksi. Pada penelitian ini, batang kantilever utama dieksitasi sehingga bergetar. Salah satu teknik peredam getaran yang diaplikasikan adalah dengan menggunakan Eddy Current Tuned Mass Damper (ECTMD). Batang kantilever tambahan diberikan untuk menyangga magnet dengan variasi panjang 100 mm, 150 mm, 200 mm. Arus Eddy ditimbulkan dengan menambah pelat tembaga di batang kantilever utama. Respon peralihan maksimal dan amplitudo respon tunak diperoleh. Batang kantilever penyangga magnet ini semakin panjang menyebabkan respon peralihan maksimal semakin kecil dan amplitudo respon tunak semakin kecil. Akibatnya, penurunan respon dibandingkan tanpa ECTMD juga semakin naik dan transmissibilitas semakin turun.
Analisis Produktivitas Menggunakan Metode Objective Matrix (OMAX) (Studi Kasus: Departemen Produksi PT Elang Jagad)
Authors: Mukti Ajeng Risky , A'yun Qurotul , Suparto Suparto
Published: March 2021

PT Elang Jagad merupakan salah satu industri manufaktur yang bergerak di pengolahan logam. Salah satu produk yang diproduksi ialah seal spacer untuk sepeda. Seiring dengan perkembangan jaman. PT Elang Jagad selalu berusaha mempertahankan dan meningkatnya eksistensinya di dunia industry. Salah satu faktor yang harus diperhatikan ialah produktivitas. Penilaian produktivitas dapat dilihat dari perbandingan nilai input dan output perusahaan. Pada penelitian ini, data input yang digunakan ialah data jumlah pemakaian listrik, jumlah tenaga kerja, dan jumlah jam kerja. Sedangkan untuk data output yang digunakan ialah data finish good produk yang berupa seal spacer. Berdasarkan perhitungan yang telah dilakukan dapat diketahui bahwa indeks perubahan terhadap produktivitas standart terbaik terjadi pada Agustus 2020 yaitu sebesar 114,47. Sedangkan untuk produktivitas terburuk terjadi padsa 1 Juni 2020 sebesar -88,41. Indeks perubahan terhadap produktivitas periode sebelumnya dapat diketahui bahwa produktivitas terbaik terjadi pada Juli 2020 yaitu sebesar 887,49. Sedangkan untuk produktivitas terburuk terjadi pada Juni 2020 yaitu sebesar –90. Atribut rasio yang paling rendah dapat ditentukan dengan melihat tabel pencapaian skor terendah, sehingga diketahui bahwa rasio 2 (tenaga kerja) memiliki produktivitas yang kurang baik karena memiliki skor terendah dibandingkan dengan rasio 1 (penggunaan listrik) dan rasio 3 (jam kerja).
Pengaruh Citra Perguruan Tinggi dan Kualitas Jasa Terhadap Minat Beli di Universitas Muhammadiyah Gresik Melalui Kepercayaan sebagai Variabel Intervening (Studi Kasus di Universitas Muhammadiyah Gresik)
Authors: Desembrianita Eva , Nur Megawati Munir , Suyoto Suyoto , Adil Malikul , Mahjudin Mahjudin
Published: March 2021

Penelitian ini bertujuan untuk mengetahui pengaruh citra perguruan tinggi dan kualitas jasa terhadap minat beli melalui kepercayaan sebagai variabel intervening. Penelitian ini menggunakan pendekatan kuantitatif. Populasi yang digunakan dalam penelitian ini adalah calon mahasiswa yang ada di kabupaten Gresik. Jumlah sampel sebanyak 100 orang dengan menggunakan purposive sampling berdasarkan kriteria-kriteria tertentu. Alat analisis yang digunakan dalam penelitian ini yaitu program analisis SPSS 15 for Windows. Hasil penelitian menunjukkan bahwa variabel citra perguruan tinggi dan kualitas jasa secara bersama-sama berpengaruh positif dan signifikan terhadap minat beli.  Berdasarkan hasil analisis, variabel citra perguruan tinggi dan kualitas jasa berpengaruh secara tidak langsung terhadap minat beli melalui kepercayaan.  Namun, nilai koefisien pengaruh total citra perguruan tinggi lebih kecil yaitu 0,161 jika dibandingkan dengan kualitas jasa 0,368 yang lebih besar.
Indicators of emotional burnout of pupils at the age of 15-17 years old and their dynamic changes during period of study in a modern school
Authors: Serheta I. V. , Bratkova O. Yu , Panchuk O. Y. , Skoruk R. V. , Shevchuk Yu. G.
Published: March 2021

Burnout-syndrome is a state of physical, motivational and, above all, emotional exhaustion, which is characterized by impaired productivity/education, the presence of severe fatigue, insomnia and increased susceptibility to the formation of somatic diseases, as well as the use of psychoactive substances, in order to obtain temporary relief, which has a pronounced tendency to develop psychological or physiological dependence and the formation of suicidal behavior. The purpose of the work is to determine the leading indicators of emotional burnout of pupils aged 15-17 years and to establish the features of their dynamic changes during education in a modern school. The research using Boyko's personal questionnaire was conducted on the basis of a number of secondary schools located in Vinnytsia, during which 309 pupils (158 young women and 151 young men) at the age of 15-17 years old were supervised. The analysis of the obtained data involved the application of descriptive statistics procedures based on the use of the standard package of statistical analysis applications “Statistica 6.1” (licensed № AXX910A374605FA). The obtained data testify to the fact that the syndrome of emotional burnout is most often observed among pupils at the aged 15 and 17, and in terms of age and sex, mainly among young men compared to young women. The differences between the rates of young women and young men are probably to be explained by their greater emotional openness and greater resistance of the organism to the action of stressors in comparison with young men. On the other hand, high levels of emotional burnout among young men compared to young women testify to their inability to spend their emotions economically, to effectively resist the actions of traumatic environmental factors and social living conditions. It is determined that the level of emotional burnout of schoolchildren is high among young women – due to the high level of expression of the phase of resistance, which indicates the development of resistance to emotional stress, among young men – due to phases of stress and exhaustion, which indicates significant depletion of adaptation mechanisms. The identified trends determine the need to develop conceptual frameworks for overcoming the leading manifestations of emotional burnout, which involve the use of personality-oriented approaches to improve the individual's ability to cope with stress due to changing stereotypes of their own behavior, relationships and relationships with others. mastering stress management skills, learning relaxation techniques, introduction of psychohygienic correction measures to pupils’ daily activities.
Stratification of the equivalent for dental treatment cost estimation among victims with maxillofacial trauma injuries occurred after road-traffic accidents
Authors: Plevinskis P. V. , Mishalov V. D. , Kozan N. M. , Kozlov S. V. , Goncharuk-Khomyn M. Y.
Published: March 2021

The article represents the results of data analytical processing considering the equivalent for dental treatment cost estimation among victims of traffic accidents with dental and maxillofacial injuries, and analyzes the objective association level of this criterion with the parameters of the approaches used for expert assessment of maxillofacial trauma injuries. Objective of the study is to analyze the equivalent for dental treatment cost values among victims of traffic accidents with dental and maxillofacial trauma injuries, and to establish an objective level of associations of this criterion with the parameters of the approaches used for expert assessment of maxillofacial trauma injuries. The design of the work included analytical processing of data obtained from previously conducted studies of retrospective and prospective nature, related to the economic component of patients’ rehabilitation due to the maxillofacial injuries occurred after road traffic accidents. The studied parameters were: the cost of treatment, duration of hospitalization, the criterion used to assess traumatic injuries of the maxillofacial region, correlation values relating trauma characteristics with the final cost of treatment and duration of hospitalization, statistical reliability of the relationships between the studied indicators of previously conducted research. Research methods: analytical, prognostic assessment, regression analysis. Current approaches used for expert severity assessment of the maxillofacial trauma injuries occurred after road accidents characterized by limited opportunities to predict and stratify the costs associated with the necessary future dental treatment of victims, but provide a sufficient level of objectification of functional and structural disorders. The increase of the expert severity assessment criteria of maxillofacial trauma injuries, in particular FISS and MFISS scores, is associated with an increase in the cost of appropriate comprehensive treatment and the potentially required duration of hospitalization, but these associations are characterized by uneven patterns of statistical dependences, and an increase in FISS and MFISS indicators beyond certain limit levels provokes a sharp advance in the cost of treatment due to the need for a longer hospitalization of the patient.
Analysis of quality of life and dental health criteria components within the structure of complex expert assessment of the prosthetic treatment among patients with maxillofacial trauma in anamnesis
Authors: Brekhlichuk P. P.
Published: March 2021

Lesions of the dento-alvelolar system, which develop in cases of traffic accidents, domestic, industrial or other traumatic injuries, leads to a sharp decrease in dental health, and consequently to the decrease in quality of life associated with post-traumatic changes in dental status. Purpose of work – to analyze the indicators of the integrated quality of life criterion associated with the state of dental health among dental prosthetically-rehabilitated patients with a history of maxillofacial (MF) traumatic injuries. The study sample was formed on the basis of the University Dental Clinic from a cohort of patients who sought dental care with the need for comprehensive prosthetic rehabilitation. According to the analysis of medical records of dental patients, 66 persons with a history of maxillofacial traumatic injuries were selected. In order to assess the integrated criterion of quality of life associated with dental health, among dental patients with a history of maxillofacial traumatic injuries, who received appropriate prosthetic treatment, surveys were conducted taking into account all domains of OHIP-14 (abbreviated to 14 questions version of the Oral Health Impact Profile questionnaire). Mandibular fractures and traumatic injuries of individual teeth (dislocations, fractures) were the most prevalent among study sample and corresponded to 31.8 % and 27.3 %, respectively. The main causes of maxillofacial traumatic injuries were domestic injuries (43.9 %), road traffic accidents (RTA) (37.9 %), criminal injuries (10.6 %), industrial-associated (4.5 %) and sports-associated injuries (3.0 %). Prosthetic rehabilitation of the vast majority of patients, which correspond to 56 persons (84.8 %), was performed using different types of fixed prosthetic constructions, such as crowns, bridges supported by natural teeth, or installed dental implants. Majority of patients 84.9-95.5 % demonstrated high indicators of the integrated criterion of quality of life associated with changes in dental health, despite the fact of previous surgical treatment of maxillofacial traumatic lesions. Thus, in the absence of secondary deformities after surgical treatment of maxillofacial traumatic lesions, prosthetic rehabilitation of patients with the use of fixed types of prosthetic constructions supported by natural teeth or installed dental implants helps to achieve high quality of life associated with changes in dental health. The use of complete or partial removable dentures for a similar purpose provokes a relative decrease within the integral criterion of quality of life in the structure of such domains, as physical pain, psychological discomfort and social incapacity, which is due to the peculiarities of removable prosthetic construction exploitation, retention and functioning.
Peculiarities of aeromedical evacuation of wounded and sick and ways of its improvement based on the experience of anti-terrorist operation and joint forces operation
Authors: Babii V. Yu. , Verba A. V. , Pashkovskyi S. M.
Published: March 2021

The article is describing general principles of organization of aeromedical evacuation of the patients by helicopters directly from the battlefield area. The number and nature of casualties caused by military aggression determined the organizational and functional features of aeromedical evacuation from the zone of military conflict. The purpose of the study is to investigate demographic, clinical, chronometric and economic indicators of air medical evacuation from the zone of military conflict and between hospitals within Ukraine to create, based on their global analysis, the optimal organizational and functional model of air medical evacuation in Ukraine. Created database, which filled out from various sources. Leading syndromes grouped the diagnoses with which the patients transported. Method of analysis known as an XmR chart used to study dynamic of the aeromedical evacuation process, which is one tool from a collection of methods known as statistical process control. The aeromedical evacuation system must be able to evacuate a sufficiently large number of stable patients from anywhere on the line of contact, and be flexible to respond in the event of a relatively small number of very unstable patients in the area of hostilities who need to be evacuated quickly enough. The obtained statistics can be useful for short- and medium-term planning of the aeromedical evacuation service. The configuration and operation of aeromedical units always depends on the nature and specificity of the military conflict, but the planning of deployment and determination of requirements of means for aeromedical evacuation should always base on the analysis of previous experience.
Features of the girth sizes of the body in men with various forms of eczema
Authors: Ahmad Al-Omary Ala’a Osama , Dmitrenko S. V. , Drachuk O. P. , Yasko V. V. , Gunas I. V.
Published: March 2021

Prediction of the occurrence of eczema and the development of its severe forms is possible by identifying its morphological markers in patients with various forms and severity of dermatosis and their comparison with healthy subjects. The aim of the study was to examine the differences in body girth sizes between healthy and/or eczema patients depending on the severity of dermatosis. Patients with idiopathic (n=34) and microbial (n=38) eczema men of the first mature age underwent an anthropometric examination according to Bunak. The diagnosis of eczema was made according to the nomenclature of ICD-10. As a control from the data bank of the research center of National Pirogov Memorial Medical University, Vinnytsya anthropometric data of 82 practically healthy men of the same age group were selected. Statistical data processing was performed in the license package “Statistica 5.5” using non-parametric methods of evaluation of the obtained results. In healthy men, the following values of the following envelope sizes were found: shoulder girth in a tense state by 4.9 % compared with patients with severe eczema; unstressed shoulder girth by 7.3 % and 11.8 % compared with patients with idiopathic eczema of mild and severe course and by 10.0 % and 11.3% compared with patients with microbial eczema of mild and severe course; forearm girth in the upper part by 5.4 % compared with patients with idiopathic eczema of severe course; thigh girth by 5.1 % and 8.0 % compared with patients with idiopathic eczema of mild and severe course and by 7.1 % and 11.3 % compared with patients with microbial eczema of mild and severe course; thigh girth by 4.16 % and 4.5 % compared with patients with idiopathic severe eczema and mild microbial eczema; upper crus girth by 5.3 %, 7.5 % and 7.1 % compared with patients with idiopathic eczema of mild and severe course and microbial eczema of mild course; lower crus girth by 6.0 % compared with patients with mild microbial eczema; neck girth by 7.5 % and 6.8 % compared with patients with idiopathic severe eczema and mild microbial eczema; waist girth by 8.6 % and 15.6 % compared with patients with idiopathic eczema of mild and severe course and by 13.9 % and 16.7 % compared with patients with microbial eczema of mild and severe course; chest girth on inhalation, exhalation, at rest by 6.9 %, 9.5 % and 9.1 % compared with patients with idiopathic eczema of severe course. Only the girth of the foot in healthy men is 3.1 % higher than in sick men with mild microbial eczema. In men with idiopathic eczema, the neck girth was 5.4 % lower than in men with severe eczema. The obtained data can be used for a personalized approach in the creation of appropriate prevention and treatment and diagnostic programs.
Features of the hormonal background of women with infertility on the background of endometriosis and methods of their correction
Authors: Kulyk I. I. , Khmil S. V.
Published: March 2021

Endometriosis-associated infertility is characterized by a number of specific features that must be considered when choosing treatment methods. In each case, treatment should be individual, taking into account all clinical factors, as well as the impact of the disease and the effect of treatment on the quality of woman’s life. Objective – to analyze the concentration of the reproductive system hormones in women with endometriosis-associated infertility before and after sclerotherapy using pregravidary preparation with a complex vitamin medication with inositol and vitamin D3. The study included 70 women aged 21-40 years with endometriosis-associated infertility. The comparison group included 30 women with tuboperitoneal infertility factor. Determination of the concentration of the reproductive system hormones was performed in an accredited laboratory of the “Professor S. Khmil Clinic Medical Center” with the help of “Diagnostic Systems Laboratories, Inc.” test system (USA) using the analyzer “StatFax”. The medicament FT 500 plus was prescribed in a dosage of 1 sachet – once a day from the 2nd or 3rd day of the cycle during 2 menstrual cycles (cycle in which sclerotherapy was performed and subsequent cycle) for 1 group. Vitamin D3 was prescribed in prophylactic doses of 2.000 IU to women who were not diagnosed with a deficiency of this vitamin and in medium therapeutic doses for hypovitaminosis during 2 menstrual cycles. The sclerotherapy procedure was performed in a sterile operating room on the 6th – 8th day of the menstrual cycle by transvaginal puncture of the cyst and aspiration of its contents under the control of transvaginal ultrasound, introduction into the cyst capsule 95 % ethanol solution. Women with endometriosis-associated infertility, who were prescribed pregravidary preparation with a complex vitamin medication with inositol and vitamin D3 and sclerotherapy had probably lower levels of AMH (by 12.90 %), progesterone (by 9.84 %) and probably higher levels of FSH (by 14.47 %), LH (by 21.14 %) estradiol (by 35.55 %) relative to the comparison group. At the same time, significantly lower indicators of FSH (by 21.98 %), LH (by 32.89 %) and estradiol (by 32.23 %) were found against their values before sclerotherapy. Performing of sclerotherapy with pregravidary preparation with a complex vitamin medication with inositol and vitamin D3 to women with endometriosis-associated infertility has a positive effect on the hormonal background.
Evaluation of Kyphosis in Mazandaran University of Science and Technology students and its relation to psychological factors
Authors: NİKKHOO AMİRİ Fateme , FORGHANİ OZRUDİ Mohammadbagher
Published: March 2021

Nowadays a large and growing field of health psychology, researchers do point out, any logical reason for the establishment of a psychosomatic patient. This study examined the Evaluation of Kyphosis in Mazandaran University of Science and Technology students and its relation to psychological factors. The method used in this research is descriptive correlation method is implemented. Population study of boys and girls were 56 (31 boys and 25 girls) and who had kyphosis has voluntarily participated in this study. The spinal mouse was used to measure the kyphosis angle and for its assessment of the patient's spine-concept, depression and anxiety are better examples of MMPI-2RF questionnaire (Reconstruction form of Minnesota Multidimensional Personality Questionnaire) (α=0.84), test Beck Depression Inventory (α=0.85), and test anxiety or Spielberger's (α=0.87), were used. The results showed that using the Pearson correlation coefficient between self-concept (r=0.52; P=0.13), depression (r=0.54; P=0.41), and anxiety (r=0.34; P=0.28), and no significant correlation with kyphosis (p<0.05). The results showed that the student alone kyphosis indicative of anxiety, depression and self-concept is not sick but creates kyphosis is related to other social and environmental factor. The results showed that in patients with kyphosis alone is not an indication of mental disorders but should be considered in the treatment of patients with these abnormalities to psychological factors.
The first data on the population parameters and morphometry of Mesogobius batrachocephalus (Pallas 1814) (Family: Gobiidae) in the southern Black Sea
Authors: Aydın Mehmet
Published: March 2021

Knout goby, Mesogobius batrachocephalus Pallas, 1814, which belongs to Gobiidae, inhabits in the Black Sea, Sea of Azov, the Caspian Sea and the rivers that flow in these three seas. The major population parameters and morphometry of Mesogobius batrachocephalus from the coasts of the southern Black Sea were investigated in this study. A total of 641 individuals were sampled between January 2019 and December 2019 between the depths of 2 to 120 m depth by using a trammel net with a mesh size of 17-24 mm. The average length and weight values were calculated as 23.1 cm (5.3-34.0) and 130.1 g (1.34-377.54) respectively. The male to female ratio of the population was found as 1:0.91 (P>0.05). Age of sampled 641 individuals varies between zero and seven. For all the sampled individuals, the von Bertalanffy growth parameters were calculated as; L∞ = 38.2 cm, k = 0.245 year-1 and t0 = -1.873 year and the length-weight relationship was found as W = 0.0058 TL3.148. Total mortality (0.481), natural mortality (0.466), fishing mortality (0.015), growth performance index (2.55) and condition factor (0.913) were calculated. The maximum value of gonadosomatic index was reached in March. Average relative fecundity was found to be 118.3 eggs per g (78.9-234.5), while the average diameter of the eggs was found as 2733.0 µm ±221.18 (2287.1-3097.8). This study provides the first data on the population parameters and the morphometry of Mesogobius batrachocephalus. These data could contribute to the establishment of a sustainable management plan for fisheries resources in the Black Sea.
Species composition, substrate specificity, and seasonal abundance of periphytic algae in a tropical riverine system Periyar, India
Authors: John Blessy , Kumar R. Sunil
Published: March 2021

The study was conducted to assess the species composition, substrate specificity, and seasonal abundance of periphytic algae from the river Periyar. Monthly samples were collected for one year (June 2016 – May 2017) from different substrates of five selected stations. Eight physicochemical variables such as temperature, dissolved oxygen, pH, conductivity, chloride, sulfate, nitrate, and phosphate were also monitored during the study. Taxonomic studies recorded 156 species of periphytic algae belonging to 56 genera, 36 families, and 5 classes. Naviculaceae was the most abundant family followed by Fragilariaceae and Pinnulariaceae. The principal component analysis revealed the dominance of periphytic algae in the pre-monsoon period. Canonical correspondence analysis indicates pH, conductivity, and sulfate plays a crucial role in periphytic algal assemblages. Correspondence analysis and percentage abundance among different substrates showed the preference of leaf substrate for primary colonization and subsequent succession. The study signifies the importance of substratum and environmental variables in the dynamics of periphytic algal community composition and abundance.
Bacteriological quality of cage-cultured abalone Haliotis asinina
Authors: Mabuhay-Omar Jhonamie A. , Cayabo Genese Divine B. , Creencia Lota A.
Published: March 2021

Abalone is one of the most highly priced seafood delicacies and prepared in various dishes like breaded, soup, steamed and sashimi. They are susceptible to microbial contamination since it is eaten raw sometimes and pathogenic microorganisms can be hazardous to consumers. The present study was carried out to determine the coliform load and the presence of presumptive pathogenic bacteria in cage-cultured abalone in Taytay, Palawan, Philippines. The study was limited to the detection of coliform and some presumptive pathogenic bacteria in different parts of abalone such as gut, gills and mantle. The result of the study revealed that the count of coliforms present in the mantle and gills of abalone falls within the normal standard limit (7 – 21 MPN 100g-1 sample). On the other hand, the gut of abalone was beyond the standard limit (460 MPN 100g-1 sample). Moreover, the gut of abalone harbors Vibrio spp., Salmonella spp. and Shigella spp. and general enteric bacteria. Foodborne infections caused by Vibrio, Salmonella and Shigella are common in Asia.
Does commercial probiotics improve the growth performance and hematological parameters of Nile tilapia, Oreochromis niloticus?
Authors: Hasan Rashedul , Hossain Mohammad Amzad , Islam Md. Rashedul , Iqbal Mohammed Mahbub
Published: March 2021

Oreochromis niloticus be-coming a promising aqua-culture species globally, but recent disease outbreaks and poor growth with commer-cial feed making it chal-lenging. A 60 days long aquarium trial and series of laboratory assays have been conducted to assess the growth performance of O. niloticus fed with a locally available commercial pro-biotic. O. niloticus fry’s were fed with a mixture of basal diet and probiotics supplementation at a level of 0% (control), 0.2%, 0.4% and 0.8%. After the trial phase weight gain, length gain, specific growth rate (SGR), percentage of weight gain (PWG), percentage of length gain (PLG) were not-ed. Among all, highest val-ues of above parameters were observed at T1 (0.2%) treatment group. Weight gain, length gain, PLG and PWG were significantly im-proved in T1 treatment group (p<0.05). Additional-ly, hematological parame-ters including hemoglobin (Hb), white blood cell (WBC) and red blood cell (RBC) were also observed for all groups and T1 was found to have highest values for all these parameters, alt-hough there were no statis-tically significant differ-ences between the values of T1 and T2. The results of this study showed that 0.2% dietary probiotics supple-ments in basal diet would optimize the growth per-formance and hematological parameters of aquarium reared O. niloticus.
Evaluation of Marmara Sea Bays in terms of Pressure-Impact Status and Eutrophication
Authors: Tan İbrahim
Published: March 2021

Closed or semi-enclosed bays in the Marmara Sea, which have long residence time, can be exposed to eutrophication as a result of organic matter enrichment from land-based pollutants. The Pressure Index method was tested for the first time in this study in order to reveal the pressure exerted by land-based sources on Izmit, Gemlik, Bandırma and Erdek Bays. As a result of the evaluation of the pressures, it was determined that the pressures on Izmit, Gemlik inner and Bandırma Bay were high, whereas Erdek and Gemlik Outer Bays were under moderate pressure. In terms of eutrophication, the nutrient, chlorophyll-a and secchi disk data of the monitoring studies carried out in the bays were compared with the limit values of the “Urban Wastewater Treatment Regulation Sensitive” and “Less Sensitive Areas Declaration and the Surface Water Quality Regulation”. Although there are differences according to the regulations, it has been determined that Izmit, Gemlik (Inner) and Bandırma Bays have eutrophic-hypertrophic conditions, Erdek and Gemlik (Outer) Bays have mesotrophic conditions. There are differences in the results due to the use of different variables and limit values in the evaluation of coastal waters by regulations. In addition to collecting regulations under a single heading, it is recommended to include biological quality elements in the eutrophication assessment.
First report of Alvania scuderii Villari, 2017 (Gastropoda: Mollusca) from Tyrrhenian Sea: Some biogeographic implications
Authors: Renda Walter , Giacobbe Salvatore
Published: March 2021

The cryptic gastropod Alva-nia scuderii Villari, 2017, recently described from the Strait of Messina as new species inside the A. scabra (Philippi, 1844) group, was known by restricted areas of eastern and southern Sicily. Some records from the type locality and south-eastern Tyrrhenian sea, which pro-vided new data on habitat and bathymetric range, also enlarged northward, in a further basin, the known ar-eal. Such areal, that over-laps a Mediterranean west-ern-eastern biogeographic boundary, may be consid-ered a further clue of an hy-drological front that is re-sponsible of a West-Mediterranean footprint more marked than in nearby North-westernmost areas.
EFFECTIVE STRUCTURE OF A WOODEN RESIDENTIAL BUILDING IN THE FORM OF A GEODESIC DOME WITH A UNIVERSAL CONNECTOR
Authors:   Odessa State Academy of Civil Engineering and Architecture, Gilodo A.Y. , Kovtun V.P. ,   Odessa State Academy of Civil Engineering and Architecture, Arsirii A.N. ,   Odessa State Academy of Civil Engineering and Architecture, Angel A.A. ,   Odessa State Academy of Civil Engineering and Architecture
Published: April 2021

Abstract. Since the middle of the twentieth century, a new architectural solution has been spherical shells broken down into elements by geodesic lines – circles with radii equal to the radius of the sphere. A geodesic dome is a dome made of a spherical polyhedron with an optimally distributed arrangement of vertices and edges tending to a perfect sphere. Using the technical capabilities of computer design, digital models of the layout and calculation of geodesic domes became available. It is possible not only to calculate multi-mesh network layouts with high accuracy, but also to automate the design. At the same time, it cannot be said that the optimal system has already been obtained and studied. The issues of optimal shaping, taking into account a simple universal connector and confirmation of theoretical results by field tests, remain not fully studied. Development of the design of a mesh wooden house in the form of a geo dome with optimal parameters of the geodetic network and nodal connections of the frame elements using a universal connector is the theme of this publication. The proposed form of division is a fullerene polyhedron describing a sphere and consisting of five and hexagonal faces. The dome polyhedron is built on the basis of the icosahedron. The number of partitions of vertices and edges that make up the split edge ‒ the frequency, is chosen equal to 3. The first class of partitioning by the "equal chords" method is adopted. The proposed universal connector for connecting parts of building structures at any angle and a method of mounting building structures using a universal connector. As a result of introduction of new technical decisions we receive essential simplification of a design, reduction of quantity of its components, at the same time increase of its manufacturability and providing an opportunity to connect details of building designs in an end face at any angle.
PHENOMENOLOGICAL ANALYSIS OF THE ROLE OF GEOMETRIC FEATURES IN THE FORMATION OF THE STRUCTURE AND PROPERTIES OF THE MATERIAL
Authors:   Odessa State Academy of Civil Engineering and Architecture, Kolesnikov A.V. , Semenova S.V. ,   Odessa State Academy of Civil Engineering and Architecture, Kirilenko G.A. ,   Odessa State Academy of Civil Engineering and Architecture
Published: April 2021

Abstract. The paper discusses the reasons for the decrease in the strength of the composite material in relation to the theoretical. A hypothesis is put forward according to which, along with the known reasons; in particular, the presence of internal interfaces, and together with them, the processes near the forming geometric features that arise during the structure formation of the binder paste can act as reasons for the decrease in strength. To simulate the occurrence of features in composite binder paste, the concept of the local formation of new growth on the nuclei of a new phase present in the binder paste ‒ layers of a hydrated binder on the surface of its grains ‒ is used. According to the proposed model, the growth of a new phase occurs according to the mechanism associated with the formation of a wave front. The wave front also undergoes metamorphosis, as a result of which its features are formed, near which structural defects are concentrated. Another type of geometric features is hidden interfaces, which are formed as a result of opposite growth of wave fronts and their contact. The proposed mechanism is confirmed by the data of a microscopic study of the processes of structure formation of a gypsum binder ‒ the formation of contact surfaces of the crystalline phase with different geometric and structural properties is observed on a model sample. As one of the main reasons for the occurrence of high concentrations of microcracks and other stress concentrators near hidden interfaces of the two types, the coexistence of solid phases with different structural characteristics in these regions is considered (there is a mismatch of the structural order parameters near the forming interfaces), as a result of which the strength decreases. This fact also explains the observed decrease in the ordering of the structure of the material in these areas. On the basis of the considered mechanisms of the formation of structural features leading to the destruction of the sample, methods are proposed for controlling the formation of the structure of the material, in particular, the targeted local introduction of solid phase nuclei into the binder paste.
INFLUENCE OF METAKAOLIN ON PROPERTIES OF CONCRETE MODIFIED WITH POLYCARBOXYLATE ADMIXTURE FOR RIGID PAVEMENT REPAIR
Authors:   Odessa State Academy of Civil Engineering and Architecture, Kryzhanovskiy V.O. , Kroviakov S.O. ,   Odessa State Academy of Civil Engineering and Architecture, Zavoloka M.V. ,   Odessa State Academy of Civil Engineering and Architecture
Published: April 2021

Abstract. The effect of partial cement replacement with high-activity metakaolin on the strength, frost resistance, shrinkage and abrasion resistance of concrete modified with polycarboxylate admixture MasterGlenium SKY 608. Portland cement CEM II/A-S 42.5 (ПЦ II/А-Ш-500) with partial metakaolin replacement 15 kg (3.75 %) and 30 kg (7.5 %) was used for concrete preparation. The amount of superplasticizer in all studied compositions was 1.2% of cement weight. Slump of concrete mixtures was 6…7 cm. It was found that with increasing amount of metakaolin W/C ratio of mixtures increased slightly. The early compressive and flexural strength (at the age of 2 days) of the composition without metakaolin was higher than similar indicators with partial cement replacement with the active mineral admixture. It is worth noting the positive effect of increasing the metakaolin amount on early strength, because the composition with 30 kg metakaolin had strengths higher at 2 days of in difference to the composition with 15 kg metakaolin. It is necessary to note high frost resistance of all obtained concretes. Its grade of frost resistance reached F200 (evaluated according to the method for road concrete), which is equivalent to the grade F600 for structural concrete. Abrasion resistance was in the low range (0.30-0.31 g/cm2), total shrinkage does not exceed 0.28 mm/m, which in combination with high frost resistance has a positive effect on the durability of concrete mixtures for rigid pavements repair.
EFFICIENCY OF PLASTICIZER EFFECT DEPENDING ON METHOD OF THEIR INTRODUCTION INTO CONCRETE
Authors:   O.M. Beketov National University of Urban Economy in Kharkov, Nikolaev A.P. , Kondrashchenko E.V. ,   O.M. Beketov National University of Urban Economy in Kharkov
Published: April 2021

Abstract. The article dwells on existing methods of plasticizing additive introduction into Portland cement-based concrete mortars. A review was performed of available works studying the reasons of different effect of pasticizers depending on the method of their introduction into concrete. It was supposed that different results in effectiveness of such additives may be connected to not only adsorption processes taking place on the surface of Portland cement aluminate and sulfate phases, but also to their concentration capillary redistribution mechanism within concrete structure. This assumption was experimentally tested using dispersed building materials deprived of calcium sulfates and aluminates. Dry process clinker-based cement consumption may be positively reduced at presence of a plasticizing additive provided it was wetted before that with mixing water. Such a result confirmed authors’ assumption that not only plasticizing agent, but cement as well may be spared in case of combined additive introduction method while maintaining the values of rheological and strength parameters of obtained products. An additional reduction in cement consumption per unit mass of products leads to a decrease in the "clinker-concrete intensity" parameter. This opportunity will contribute to the reduction of the greenhouse effect by reducing CO2 emissions into the atmosphere when firing Portland cement clincer. We concluded that our proposed decisive role of plasticizing additive redistribution capillary mechanism in cement paste intergrain air space enables, on a par with its adsorption counterpart, a more substantiated prediction of applied plasticizer efficiency depending on their properties, as well as on condition and pjase composition of applied binders and aggregates. Efficiency of cone penetration methods was demonstrated in analysis and control of Portland cement condition and behavior.
Molt of the American mink, depending on the genotype and nature of the behavior
Authors: Kvanskaia T. A. , Alekseeva Z. N. , Trapezov O. V.
Published: March 2021

The object of research was the American mink, a predator, a semi-aquatic representative of the mustelidae family. The study was carried out on an adult population of males and females of the 22nd generation of different behavioral types and genotypes at the Experimental Fur Farm of the Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences. The total number of studied animals was 547 ones of the Standard dark brown (+/+), Hedlund-white (h/h) and black crystal (CR/ +) genotypes. All animals were kept in the same conditions and received food edlibitum (lat. – full) on a unified ratio once a day in the afternoon. The research results were processed using a standard biometric method. The comparison was carried out according to the Student’s test. The aim of this work was to study the course of molting of the American mink depending on the genotype, behavioral character and gender of animals. At the end of August, a visual assessment of the course of molt along the tail was carried out. Points were assigned individually to each animal (from 0 to 5 points). During the study of the molting process of the American mink, it was found that in male aggressors of the black crystal and headlund genotypes, molting proceeded much more intensively than in animals of the standard genotype (by 1.9 and 1.3 points), and in females of the aggressive type of behavior of the standard genotype it was faster than in females of genotypes headlund and black crystal (by 1.8 and 1.6 points). When comparing gender data in animals of different genotypes and behavioral reactions, the best molt course was found in male aggressors of the Hedlund and Black Crystal genotypes in comparison with females of the same genotypes (by 0.6 and 0.5 points, respectively). Due to domestication and selection, changes occur in the economically useful traits of animals. Research in this area makes it possible to study these processes and apply them in practice. Ignoring the biological characteristics of minks creates a threat to the emergence and development of serious abnormalities in metabolism, which can lead to a decrease in productivity and even death.
Manganese accumulation in females and males in muscle tissue and scales of Sander lucioperca of the Novosibirsk Reservoir
Authors: Riavkina K. S. , Konovalova T. V. , Korotkevich O. S. , Petukhov V. L.
Published: March 2021

Studies on the accumulation of manganese in females and males in the scales and muscle tissue of the Sander lucioperca of the Novosibirsk Reservoir were carried out. Analyzes were taken in a A.M. Nikolaev analytical laboratory of the Institute of Inorganic Chemistry SB RAS. The pike perch were divided by gender. Then 34 samples of scales and muscle tissue were taken from them. The manganese content was determined by inductively coupled plasma atomic emission spectrometry on a Thermo Scientific iCAP-6500 spectrometer. High variability of manganese accumulation in females and males in scales and muscle tissue was revealed. It was found that the concentration of manganese in females scales was 7.7 times higher than in muscle tissue, and in males - 15.7 times. There were no significant differences in manganese content between the genders. The ratio of extreme variants of scales in females and males was 1: 5 and 1: 6, and in muscle tissue - 1: 35 and 1: 30, respectively. The average values of the concentration of manganese in the muscles of the Sander lucioperca of the Novosibirsk reservoir were determined. Differences in the deposition of manganese in muscle tissue in females and males of Sander lucioperca were revealed. The concentration of manganese in the muscles of females was 2 times higher than that of males. The results obtained on the accumulation of manganese in scales and muscle tissue can be used as reference values. The level of metal concentration is characterized by an uneven distribution in the muscles and scales of Sander lucioperca. The research results are suitable for a lifetime assessment of the Sander lucioperca interior. An average positive correlation was found between manganese in females with absolute length and body weight (r = 0.329 and r = 0.311). It was found that the amount of manganese and other heavy metals in the Novosibirsk reservoir is increasing.
Feed consumption by minks of different behavioral types
Authors: Stepanova M. A. , Alekseeva Z. N. , Trapezov O. V.
Published: March 2021

The main goal of the work was to determine the attitude of the American mink to feed consumption, depending on the genotype and behavior. The object of research was American mink (Neovison vison) of cell breeding of three different genotypes: Standard dark brown (+/ +), Hedlundwhite (h/ h) and Black crystal (CR/ +). Groups of animals were initially assessed on aggressive and manual behavior using a special hand catch test method. The duration of the work was 30 days. All animals received a unified ratio according to the recommended norms. Daily feed was weighed before distribution (190 g per 1 head to females and 250 g to males) and the amount of feed consumed a day per group and per 1 head was determined from the remains. The feed consumption was assessed by the indicator of the feed consumed by males and females of different genotypes and behavior. Comparison of the data was carried out using Student t-test. As the temperature factor influences the feed consumption, the feed intake by minks of different genotypes was assessed over seven-day periods. It was found that in the first observation period there was no difference in the amount of feed consumed by females. However, in the second period, aggressive Hedlund females consumed more than females of the black crystal genotype. In the same period, the females of the black crystal genotype showed the lowest feed consumption in comparison with the standard and Hedlund females. In the third period, Hedlund females consumed the largest amount of feed among aggressor females in comparison with the genotypes Standard and Black Crystal. There are no differences in feed consumption by males of different genotypes for the same periods. Over the entire study period, female aggressors of genotypes Standard and Hedlund consumed more feed than females of the tame type of behavior. The tame males of the standard genotype consumed more feed than the aggressive ones. There were no differences in feed consumption by minks of different behavior of the black crystal genotype.