bluuebunny/crossref_metadata_2025 huggingface dataset:
Photocatalytic reduction of methylene blue by the heterostructure of Titanium (IV) oxide and symmetric cationic polymethine dye
Authors: Kobasa I. M. , Vorobet’s M. M. , Sema O. V.
Published: February 2021

The results of the spectral, electrochemical and energy characteristics of symmetric cationic polymethine dye 2 - [(1E) -1,3,5-hexatrienyl -] - 1- (phenylmethyl)-benzindolium boron fluoride (D) indicate the possibility of its use as an effective titanium(IV) sensitizer oxide. Comparison of the absorption spectra of the dye solution and the reflectance spectra of the D/TiO2 heterostructures showed that the deposition of the dye on the TiO2 surface leads to bathochrome and hypochromic shifts of the absorption bands, the value of which depends on the content of this component in the heterostructure (HS). The obtained changes in the spectra of heterostructures indicate the possibility of formation of both J- and H-aggregates. Cyclic voltammetry determines the oxidation and reduction potentials of the investigated polymethine dye and calculates their redox potentials in the excited state. They have been found to be sufficient for sensitization by electron transfer to the TiO2 conduction band. The photocatalytic activity of HS D/TiO2 in the model reaction of methylene blue reduction depending on irradiation conditions and dye concentration has been determined. It is shown that, when irradiated with D/TiO2 heterostructures with light with λ <400 nm, their photocatalytic activity decreases with increasing dye content in the whole concentration range of the studied concentrations. When irradiated with heterostructures by light absorbed by the dye (λ = 872 nm), the photocatalytic activity increases to a maximum value at a concentration of the dye equal to 0,20 mg/g, and then decreases with increasing concentration. The energy of possible electronic processes caused by the action of light absorbed by a semiconductor and a dye-sensitizer is considered. The possibility of using created heterostructures as functional materials with a given level of photocatalytic activity and extended range of light sensitivity is shown.
Antimicrobial activity of 5-nitrovinylimidazoles
Authors: Grozav A. M. , Deyneka S. Ye. , Chornous V. O. , Antoniychuk V. I. , Lukan Y. R.
Published: February 2021

A rapid development of the microbial resistance against antibiotics is one of the most acute problems occurring at contagious diseases treatment. That is why the search of new highly active antimicrobial drugs is a problem of the constant and significant scientific importance.

Using the “Pass Online” software, a series of compounds with potentially high antimicrobial activity/inactivity efficiency has been selected among the derivatives of the 5-carbofunctionalized imidazoles. It was found that the 5-nitrovinylimidazoles should exhibit the highest activity. Nitrofural and Clotrimazole are used commonly in medicine as antimicrobial and antifungal medicines and they were selected as the reference compounds to compare an activity of the compounds involved into this investigation. Five inhibition activity indexes were used to evaluate a potential antimicrobial efficiency of the proposed compounds: an ability to inhibit the ATPase of the lipid transfer; the chloride peroxidase, the phthalate-1,6-beta-glucosidase; the NADPH-peroxidase and the endo-1,6-beta-glucosidase. The results obtained in this investigation have proven that these indexes are quite high for both the proposed novel compounds and for the reference medicines.

All theoretical results have also been verified experimentally and all the reported compounds have shown a sufficient antimicrobial efficiency against reference strains of the bacteria Staphylococcus Aureus, Eschericia Coli and the fungi Candida Albicans when applied as solutions with concentrations 0.24-500 μg/L. Therefore, they may have a significant potential for the further investigations.

An acute toxicity of the compounds has been evaluated by using the software «GUSAR Online Acute Rat Toxicity Prediction». An additional relevance control of the toxicity evaluation was realized by the toxicity cross-verification with the reference compounds Clotrimazole and Nitrofural. It was found that the reported 5-nitrovinylimidazoles can be classified as the fourth toxicity class chemicals.
O que dizem os memes da educação na pandemia? Dilemas e possibilidades formativas
Authors: Maddalena Tania Lucía , Couto Junior Dilton Ribeiro , Teixeira Marcelle Medeiros
Published: February 2021

O trabalho se propõe a discutir as imagens-dizeres expressos nos memes produzidos no contexto da COVID-19, doençadescoberta na China após casos registrados em dezembro de 2019 pelo novo coronavírus SARS-CoV-2. Devido ao seu alto poder de transmissão, em apenas três meses foi declarada a pandemia pela Organização Mundial da Saúde (OMS). Em meio ao foco na contenção da circulação do vírus em escala global e às reconfigurações das práticas culturais, cabe a nós, pesquisadores do campo educacional, pensar sobre as implicações dessa pandemia para os processos formativos cotidianos no contexto da cibercultura. Os memes analisados, capturados nas redes sociais Facebook, Twitter e WhatsApp entre os meses de março e junho de 2020, retratam nossa preocupação diante do aumento significativo de instituições de Educação Básica e de Ensino Superior que estão optando pela Educação a Distância (EaD) e por práticas de ensino remoto. Concluímos argumentando que as tecnologias digitais, por si só, não são capazes de revolucionar os processos de ensinar-aprender e que a pandemia pode ser uma oportunidade importante para professoras/es colocarem em prática uma reflexão sobre suas próprias dinâmicas pedagógicas, fazendo da internet um campo de experimentação educacional prazeroso em tempos de isolamento físico.
Remédios diferentes para um mesmo mal: a epidemia e a experiência humana pelo viés do literário
Authors: Maciel Sheila Dias
Published: February 2021

Reflexão, apoiada em Gallian (2017), sobre o poder curativo da Literatura. Vista como remédio, a leitura literária dos clássicos é capaz de trazer à tona, esclarecer, vivificar e promover a elaboração de vários problemas humanos. Neste âmbito, utilizamos duas obras de diferentes espécies, mas pertencentes ambas ao universo da Antiguidade Clássica, para rever a presença da epidemia como cena motivadora de suas tramas e conectá-las ao contexto da pandemia e do perigo de contaminação, vivenciados por nós, editores, autores e leitores da RBPAB, nesta segunda década do século XXI. Ao final, após a atenção dada a Édipo Rei, tragédia de Sófocles, e à fábula “A peste dos animais”, atribuída a Esopo, pontua-se o caminho autobiográfico como um dos elementos da composição do medicamento, com efeito de bálsamo, que serve como uma instância ou produto da autorrepresentação.
Confiar. Con.fiar. Confi(n)ar: a narrativa como estratégia formativa ante às recentes transformações sociais
Authors: Ferreira Luciana Haddad , Prezotto Marissol , Terra Juliana
Published: February 2021

considerando as recentes transformações sociais vivenciadas em todo o mundo, direcionando o olhar especialmente para os desafios impostos à comunidade docente em nosso país, apresentamos neste estudo excertos de duas narrativas autobiográficas, escritas por nós no decorrer do isolamento social. Por meio delas, pretendemos discorrer sobre a potência da escrita narrativa como recurso formativo que se funda no fazer cotidiano, artesanal e coletivo. O texto também é construído narrativamente, em diálogo com os recortes e com autores que nos ajudam a pensar o tema, especialmente do campo da formação continuada e da filosofia da linguagem. Apontamos que diante do sentimento de solidão, em seus diversos sentidos, vivenciado intensamente na atualidade, a escrita narrativa se delineia como possibilidade de desenvolvimento do pensamento (por sua articulação com a linguagem) e da consciência (pelos excedentes de visão oferecidos). Também reafirmamos o movimento da escrita como ato ético e estético, de conexão com os pares e com o meio. Neste sentido, destacamos o ato de narrar como dialético, constituído de ausências e presenças, ruptura e tradição. Sobretudo, como forma de resistência.
Polycystic Ovary Syndrome: It is time to change the approach in diagnosis and management
Authors: Wehbe Chidiac Carole
Published: February 2021

Polycystic ovary syndrome (PCOS) is a common and very distressing condition in women of reproductive age. International evidence-based guideline for the assessment and management of polycystic ovary syndrome was published in 2018, with a governance including an international advisory board from six continents. The global guideline has provided a well-rounded and all-inclusive synopsis of all aspects of PCOS. Recommendations made are clear and should help eliminate areas of conflict. The addition of large sections addressing lifestyle and emotional wellbeing puts the prevalence of eating disorders in PCOS in the spotlight and strengthens the importance of looking at the patient as a whole rather than a collection of individual symptoms and problems to solve. This commentary focuses on the evidence against many unnecessary and even harmful practices we still frequently encounter: the diagnostic criteria in teenagers, the lack of optimal ultrasound reporting, the unnecessary recommendation for non-evidence-based diets, and the harmful effects of untimely discussions disregarding women’s priorities, communication preferences, beliefs culture and mental health. Last but not least, although screening for eating disorders has been recommended by many medical societies, especially before any triggering discussion about lifestyle changes, it is still rarely done in clinical practice.
DEF8 and Autophagy-Associated Genes Are Altered in Mild Cognitive Impairment, Probable Alzheimer’s Disease Patients, and a Transgenic Model of the Disease
Authors: Leyton Esteban , Matus Diego , Espinoza Sandra , Benitez José Matías , Cortés Bastián I. , Gomez Wileidy , Arévalo Nohela B. , Murgas Paola , Manque Patricio , Woehlbier Ute , Duran-Aniotz Claudia , Hetz Claudio , Behrens María Isabel , SanMartín Carol D. , Nassif Melissa
Published: February 2021

Background: Disturbances in the autophagy/endolysosomal systems are proposed as early signatures of Alzheimer’s disease (AD). However, few studies are available concerning autophagy gene expression in AD patients. Objective: To explore the differential expression of classical genes involved in the autophagy pathway, among them a less characterized one, DEF8 (Differentially expressed in FDCP 8), initially considered a Rubicon family member, in peripheral blood mononuclear cells (PBMCs) from individuals with mild cognitive impairment (MCI) and probable AD (pAD) and correlate the results with the expression of DEF8 in the brain of 5xFAD mice. Method: By real-time PCR and flow cytometry, we evaluated autophagy genes levels in PBMCs from MCI and pAD patients. We evaluated DEF8 levels and its localization in brain samples of the 5xFAD mice by real-time PCR, western blot, and immunofluorescence. Results: Transcriptional levels of DEF8 were significantly reduced in PBMCs of MCI and pAD patients compared with healthy donors, correlating with the MoCA and MoCA-MIS cognitive tests scores. DEF8 protein levels were increased in lymphocytes from MCI but not pAD, compared to controls. In the case of brain samples from 5xFAD mice, we observed a reduced mRNA expression and augmented protein levels in 5xFAD compared to age-matched wild-type mice. DEF8 presented a neuronal localization. Conclusion: DEF8, a protein proposed to act at the final step of the autophagy/endolysosomal pathway, is differentially expressed in PBMCs of MCI and pAD and neurons of 5xFAD mice. These results suggest a potential role for DEF8 in the pathophysiology of AD.
Pythagorean fuzzy TOPSIS method based on 2-tuple probability weight
Authors: Xu Tingting , Zhang Hui , Li Boquan
Published: February 2021

In this paper, the concept of 2-tuple probability weight is presented, and on this basis, the technique for order preference by similarity to ideal solution (TOPSIS) method in Pythagorean fuzzy environment is given. First, the definition of 2-tuple probability weight is put forward, and two examples are provided to illustrate that 2-tuple probability weight can effectively prevent the loss of information. Second, the notion of real-value 2-tuple is defined for any two real numbers, and some basic operations, operation properties, and sorting functions are introduced. Finally, a 2-tuple probability weight Euclidean distance is provided, a new Pythagorean fuzzy TOPSIS method is further proposed, and the flexibility and effectiveness of the proposed methods are illustrated by an example and two comparative analyses.
Salp swarm algorithm with crossover scheme and Lévy flight for global optimization
Authors: Jia Heming , Lang Chunbo
Published: February 2021

Salp swarm algorithm (SSA) is a meta-heuristic algorithm proposed in recent years, which shows certain advantages in solving some optimization tasks. However, with the increasing difficulty of solving the problem (e.g. multi-modal, high-dimensional), the convergence accuracy and stability of SSA algorithm decrease. In order to overcome the drawbacks, salp swarm algorithm with crossover scheme and Lévy flight (SSACL) is proposed. The crossover scheme and Lévy flight strategy are used to improve the movement patterns of salp leader and followers, respectively. Experiments have been conducted on various test functions, including unimodal, multimodal, and composite functions. The experimental results indicate that the proposed SSACL algorithm outperforms other advanced algorithms in terms of precision, stability, and efficiency. Furthermore, the Wilcoxon’s rank sum test illustrates the advantages of proposed method in a statistical and meaningful way.
Improving the similarity search between images of agricultural products: An approach based on fuzzy rough theory
Authors: Pirozmand Poria , Kalantari Kimia Rezaei , Ebrahimnejad Ali , Motameni Homayun
Published: February 2021

Many methods have been presented in recent years for identifying the quality of agricultural products using machine vision that due to the huge amount of redundant information and noisy data of images of products, the retrieval accuracy and speed of such methods were not much acceptable. All of them try to provide approaches to extract efficient features and determine optimal methods to measure similarity between images. One of the basic problems of these methods is determination of desirable features of the user as well as using an appropriate similarity measure. This study tries to recognize the importance of each feature according to user’s opinion in every feedback stage through using weighted feature vector, rough theory and fuzzy logic for identifying important features and finding a higher accuracy in retrieval result. The proposed method is compared with fuzzy color histogram, combined approach and fuzzy neighborhood entropy characterized by color location. The simulation results indicate that the proposed method has higher applicability in image marketing compared to the existing methods.
Pengaruh Karakteristik Perusahaan, Karakteristik Dewan Komisaris dan Reputasi Auditor Terhadap Pengungkapan Manajemen Risiko
Authors: Tarantika Risna Ade , Solikhah Badingatus
Published: February 2021

Penelitian ini bertujuan untuk mengkaji peran ukuran perusahaan, leverage, kepemilikan publik, ukuran dewan komisaris, risk management committee, diversitas latar belakang pendidikan dewan komisaris, diversitas gender dewan komisaris dan reputasi auditor terhadap pengungkapan manajemen risiko. Populasi penelitian berjumlah 192 perusahaan properti, real estate dan konstruksi bangunan yang terdaftar di BEI tahun 2015-2017. Pemilihan sampel menggunakan teknik purposive sampling sehingga diperoleh 165 unit analisis. Metode analisis yang digunakan dalam penelitian ini menggunakan regresi data panel menggunakan program Eviews 9. Hasil penelitian menunjukkan bahwa ukuran perusahaan, ukuran dewan komisaris dan risk management committee memiliki hubungan positif signifikan terhadap pengungkapan manajemen risiko. Variabel leverage, kepemilikan publik, diversitas latar belakang pendidikan dewan komisaris, diversitas gender dewan komisaris dan reputasi auditor tidak berpengaruh terhadap pengungkapan manajemen risiko. Simpulan dari penelitian ini yaitu manajemen perusahaan diharapkan untuk meningkatkan pengungkapan manajemen risiko sebagai upaya kesiapan perusahaan dalam menghadapi risiko. Bagi investor maupun kreditur dapat mempertimbangkan ukuran perusahaan, ukuran dewan komisaris dan risk management committee sebagai dasar untuk melakukan investasi.
Analisis Pengaruh Ownership Structure, Ukuran Perusahaan dan Jenis Industri Terhadap Pengungkapan Modal Intelektual
Authors: Suyono Nanang Agus
Published: February 2021

Penelitian ini bertujuan untuk mengetahui pengaruh dari ownership structure, ukuran perusahaan dan jenis industri terhadap pengungkapan modal intelektual. Populasi dalam penelitian ini adalah laporan keuangan perusahaan yang melakukan IPO di Bursa Efek Indonesia periode 2011 sampai 2017. Sampel dalam penelitian ini berjumlah 69 laporan keuangan perusahaan yang melakukan IPO di Bursa Efek Indonesia (BEI) dan didapat melalui teknik pengambilan purposive sampling. Metode analisis yang digunakan adalah metode regresi linier berganda.

Hasil penelitian ini menunjukkan bahwa ukuran perusahaan berpengaruh positif terhadap pengungkapan modal intelektual. Sedangkan ownership structure (kepemilikan manajerial, kepemilikan institusional dan kepemilikan asing) dan jenis industri tidak berpengaruh terhadap pengungkapan modal intelektual.

Penelitian ini hanya terbatas pada perusahaan yang melakukan IPO  di Bursa Efek Indonesia (BEI) saja, sehingga untuk peneliti selanjutnya disarankan untuk memperpanjang periode penelitian dan memperluas populasi penelitian. Serta menambah variabel penelitian yang mempengaruhi pengungkapan modal intelektual misalnya tingkat keuntungan perusahaan atau risiko
Faktor Determinan Pemilihan Konservatisme Akuntansi
Authors: Suyono Nanang Agus
Published: February 2021

Penelitian ini bertujuan untuk menguji pengaruh dari rasio leverage, profitabilitas, intensitas modal, CEO gender, ukuran dewan komisaris dan kesempatan tumbuh terhadap Konservatisme Akuntansi. Sampel dalam penelitian ini berjumlah 42 adalah Laporan Keuangan Perusahaan Manufaktur Tahun 2016 sampai 2018 yang terdapat di Bursa Efek Indonesia dan dokumen yang terdapat di Indonesia Stock Exchange berupa Annual Report dan Harga Penutup Saham tahun 2016 sampai 2018 yang didapat melalui teknik pengambilan purposive sampling dan dengan menggunakan teknik analisis linier berganda.

Hasil penelitian ini menunjukkan bahwa rasio leverage berpengaruh negatif terhadap Konservatisme Akuntansi. Profitabilitas berpengaruh negatif terhadap Konservatisme Akuntansi. Intensitas modal berpengaruh negatif terhadap Konservatisme Akuntansi. CEO gender berpengaruh positif terhadap Konservatisme Akuntansi.Ukuran dewan komisaris berpengaruh positif terhadap Konservatisme Akuntansi. Sedangkan kesempatan tumbuh tidak berpengaruh terhadap Konservatisme Akuntansi.

Penelitian ini hanya terbatas pada Perusahaan Manufaktur di Bursa Efek Indonesia, sehingga untuk peneliti selanjutnya disarankan untuk memperluas populasi penelitian serta menambah variabel penelitian yang mempengaruhi Konservatisme Akuntansi.
Analisis Problem Solving Skills Siswa pada Materi Lingkungan
Authors: Utari Nadya , Hindrasti Nur Eka Kusuma , Amelia Trisna
Published: February 2021

The purpose of the research was to find out the level of the students' problem solving skills on environmental material at X class of MAN Bintan. The researcher applied descriptive quantitative approach as method for analyzing the data. Sampling in this study using Total Sampling technique with the sampel consisted of 59 students. This instrument is used to collect students' problem solving skills through six aspects to Chang & Kelly with 6 items essay and feature interviews. The data were analyzed with statistical rule in percentage. Based on the results of data analyze shows that a 77% rate highly classified. The researcher concluded that student at X class MAN Bintan has good problem solving skills. However, it still needs training and guidance to develop problem solving skills.
I never knew a librarian did that! : Exploring how faculty and librarian relationships support meaningful collaboration
Authors: Colantonio-Yurko Kathleen
Published: February 2021

This paper examines the relationships that developed over a 10+ year span at a comprehensive college in upstate New York. When the library was reorganized into a generalist model of library support, the faculty members felt unsupported. The paper explains the origin of the department-wide collaboration and then uses reflections to analyze ways in which the relationship with a liaison librarian support the faculty members work. Specific themes include overcoming library anxiety, online teaching support, and scholarship support with suggestions for librarian practice.
Mechanical Behavior of Modified Reactive Powder Concrete with Waste Materials Powder Replacement
Authors: Radhi Mushtaq Sadiq , M. R. Abdul Rasoul Zainab , Alsaad Aymen  J.
Published: February 2021

Across the world, a huge amount of waste materials is deposited from different industrial or construction activities. Out of this massive waste quantity, a petite is recycled and remaining is dumped in vulnerable lands. This paper deals with the potential utilization of solid waste in reactive powder concrete, practically powdered glass originating from waste glass bottles and powdered ceramics tile from waste of construction process. First, the optimum ratio of waste pozzolanic material (ceramics to glass ratio) was obtained by pozzolinic activity test. Then, the optimal waste pozzolanic material was incorporated in reactive powder concrete at several substitution levels. The waste pozzolanic material in 5 %, 10 %, 15 %, 20 %, and 25 % were added in the reactive powder concrete mixes as fractional supplement of silica fume. Strength and water absorption of the modified reactive powder concrete were evaluated. A significant enhancement was observed in mechanical behavior of modified reactive powder concrete containing 15 % waste pozzolanic material. Results directed irrelevant raise in water absorption as increasing the waste replacement material.
POSAMEZNIKOVO ODLOČANJE ZA ZAPOSLITEV V POGODBENI REZERVI SLOVENSKE VOJSKE
Authors: KOPAČ ERIK , VUGA JANJA
Published: February 2021

Ob prehodu na poklicno popolnjevanje je proučevanje posameznikovega odločanja za različne oblike vojaške službe postalo zelo pomembno, saj so se oborožene sile soočile s konkurenčnimi iskalci delovne sile, s katerimi pogosto glede na ugodnosti, ki jih lahko ponudijo, in glede na posebnosti in zahtevnost dela težko tekmujejo. V primerjavi s proučevanjem pridobivanja in zadrževanja kadra za stalno sestavo oboroženih sil so analize, ki se ukvarjajo s pridobivanjem in zadrževanjem kadra za rezervno sestavo, predvsem zaradi pomanjkanja podatkov, veliko redkejše. S socio-
-psihološkim proučevanjem smo tako pri pogodbenih pripadnikih rezerve sestave Slovenske vojske preverili, kateri so ključni dejavniki odločanja za zaposlitev v pogodbeni rezervi. Pri tem smo prišli do ugotovitve, da imajo poleg ekonomskih spodbud pri odločitvah posameznikov za zaposlitev v pogodbeni rezervi pomembno vlogo tudi dejavniki, ki izhajajo iz osebnega odnosa posameznika do zaposlitve v pogodbeni rezervi, normativnih pritiskov oziroma podpore, deskriptivnih norm in ocene samoučinkovitosti, pa tudi številni drugi, bolj oddaljeni dejavniki, kot sta de- mografija in informiranost.

During the transition to professional armed forces, the study of individual’s motives for various forms of military service became increasingly important. The profession- al armed forces have been confronted with competitive employers, who are often hard to compete with, considering the benefits they can offer as well as the charac- teristics and complexity of the work. Compared to the studies regarding the recruit- ment and retention of permanent military personnel, the analysis of the recruitment and retention of reserve military staff are much rarer, mainly due to the lack of data. With the help of socio-psychological framework applied to Slovenian Armed Forces contract reserve members, we thus determine the key factors triggering decisions for the employment in the contract military reserve. In doing so, we came to the con- clusion that, in addition to the economic stimulation, the factors contributing to the individuals’ decision to seek employment in the contract reserve are the following: factors resulting from individual’s personal attitude towards the employment in the military contract reserve, normative pressures or support, descriptive norms, self- efficacy assessment, and many other more remote factors, such as demographics and information.
FEATURES AND CONSEQUENCES OF MANIFESTATION OF INFORMATION RISKS AT THE GLOBAL LEVEL IN MODERN CONDITIONS
Authors:   O.S. Popov Odesa National Academy o f Telecommunications, Granaturov V.M. , Korablinova I.A.
Published: February 2021

The article is devoted to the risk analysis associated with the use of information and information technologies. Activation and deployment of “digital transformation programs” are accompanied by the emergence of new or unfamiliar challenges and threats; they have a significant negative impact on all aspects of society and are called as “information risks”. It has been shown that any modern entity with social and economic relations provides a wide range of information risks. The purpose of the research is to identify and substantiate the existing problems of qualitative analysis of the emergence and consequences of global information risks, as well as to develop recommendations for their solution. The analysis of different views according to the problems of global risks has been given. The analysis gives an opportunity to offer a separate group of “global information risks” from a part of global risks. It is shown that this can be determined by: causes and peculiarities of their occurrence and emergence; specific activities in order to reduce the likelihood of their occurrence; exclusion, or mitigation of negative effects of their occurrence; specific requirements for the category, staff and competency of managers who should deal with global information risk management. Recommendations have been offered in order to supplement the existing global risks with a separate group - global information risks and to the list of risks such as “massive fraud and data theft”, “large-scale cyber attacks”, “destruction of critical information infrastructure and networks”. It is necessary to add “global content risks”, “risk of privacy loss (for state and private sectors)”, as well as “risk of confidence loss in the media (sources of information)”. Features of these risks emergence have been considered.
POLARIZATION MODE DISPERSION COMPENSATOR BASED ON ANISOTROPIC OPTICAL FIBER
Authors:   O.S. Popov Odesa National Academy o f Telecommunications, Staschuk O.M , Stepanov D.M , Bahachuk D.H.
Published: February 2021

Abstract. In this paper, a new method of polarization mode dispersion (PMD), which can significantly limit the speed and range of transmission of fiber optic transmission systems (FOTS), compensation was developed and analyzed. In contrast to the existing types of PMD compensators, in which the optical fiber is subjected to mechanical stresses to create a photoelastic anisotropy, in this work the use of alternative method of creating photoelasticity in optical fiber (OF) by creating a helical ordered rotation of the glass microstructure (ORMG) is proposed. The helical orientation of the microstructure of the OF glass is achieved by acting on the fiber in the process of manufacture (drawing), when it is in a hot state, electromagnetic field, the power lines of which are directed in a circle. I am not sure what this sentence is trying to say. The result is an asymmetry of the dielectric constant of the fiber glass material and therefore the anisotropy of the optical properties. When the optical signal propagates in such OF, there is a double refraction, which is the cause of artificial PMD in the compensator fiber. Compensation is achieved by performing the equality of the modulus and the sign-opposite between the linear path PMD and the PMD of the anisotropic OF with the ORMG. The expression of the calculation of the PMD of the compensator, which depends on the rotation step of the microstructure of the glass, the chemical composition of the OF, the length of the line, the width of the radiation spectrum and the wavelength of the optical signal, and the optical characteristics of the OF, is analyzed, as well as the spectral dependence of polarization mode dispersion for different chemical compositions of the OF. The expression of determining the length of the OF with the ORMG is presented to compensate for the set value of the PMD in the line. The results of the studies made it possible to determine the lengths of the segments of OF with ORMG, which will provide partial or complete compensation of PMD over a wide range of wavelengths and create passive compensators for dispersion.
MODULAR SEARCH SPACE FOR AUTOMATED DESIGN OF NEURAL ARCHITECTURE
Authors:   Khmelnytskyi National University, Radiuk P.M.
Published: February 2021

The past years of research have shown that automated machine learning and neural architecture search are an inevitable future for image recognition tasks. In addition, a crucial aspect of any automated search is the predefined search space. As many studies have demonstrated, the modularization technique may simplify the underlying search space by fostering successful blocks’ reuse. In this regard, the presented research aims to investigate the use of modularization in automated machine learning. In this paper, we propose and examine a modularized space based on the substantial limitation to seeded building blocks for neural architecture search. To make a search space viable, we presented all modules of the space as multisectoral networks. Therefore, each architecture within the search space could be unequivocally described by a vector. In our case, a module was a predetermined number of parameterized layers with information about their relationships. We applied the proposed modular search space to a genetic algorithm and evaluated it on the CIFAR-10 and CIFAR-100 datasets based on modules from the NAS-Bench-201 benchmark. To address the complexity of the search space, we randomly sampled twenty-five modules and included them in the database. Overall, our approach retrieved competitive architectures in averaged 8 GPU hours. The final model achieved the validation accuracy of 89.1% and 73.2% on the CIFAR-10 and CIFAR- 100 datasets, respectively. The learning process required slightly fewer GPU hours compared to other approaches, and the resulting network contained fewer parameters to signal lightness of the model. Such an outcome may indicate the considerable potential of sophisticated ranking approaches. The conducted experiments also revealed that a straightforward and transparent search space could address the challenging task of neural architecture search. Further research should be undertaken to explore how the predefined knowledge base of modules could benefit modular search space.
OPTIMAL ROUTES SEARCH IN LARGE MAIL NETWORKS
Authors:   O.S. Popov Odesa National Academy o f Telecommunications, Yashchuk L.O.
Published: February 2021

Currently, small postal networks, characterized by the presence of unique links between their structures and communication matrices, are mainly used to meet the needs of the postal service. These networks are constantly being developed and improved, in particular, new regional automated sorting centers are being created that use robotic complexes, machines and devices, mail transportation and processing schemes are complicated, and alternative options for such schemes arise, including alternative options for quantity, location and throughput specified sorting centers, securing postal service objects, sequences and time schedules for their passage, etc. As a result, small mail communication networks are gradually turning into large mail communication networks, a characteristic feature of which is the lack of unambiguous connections between their structures and connectivity matrices, which greatly complicates the search for optimal paths in these networks. In this work, as the prototypes of large postal networks, the lines of the largest undergrounds in the world are used. Although the subways are not intended for transportation and processing of mail, they provide an opportunity to get a real idea of the difficulty of finding optimal paths in large postal networks, to compare and evaluate the effectiveness of search algorithms for such paths in these networks
Conceptual principles of strategic management of dairy enterprises
Authors: Shupyk S.
Published: February 2021

The article examines the strategy development framework of dairy enterprises, which provide a gradual and consistent change in production activity principles in the direction of growth.It is proved that the development strategy can be effective only through the introduction of organizational and economic mechanism of interaction of the structural centers creating income, which provides a reproductive process within the business unit on the extended type.
The feasibility of strategic development justification of dairy enterprises in conditions of uncertainty and strengthening of crisis phenomenon was highlighted, for the following reasons: the dairy industry is represented by a set of economic entities, the majority of which does not belong to large integrated structures; the sectoral specificity of milk production complicates the possibility of influencing on the determination of business priority parameters.It is argued that in agriculture the most acceptable is the strategy of differentiated growth at the individual economic entity level, which contributes to the fuller use of production and resource potential, reduces the risk of commercial losses, increases sustainability, etc.).
It is proved that strategic management in dairy farms is a process of developing a promising model of the future organization’ condition, which allows to take into account the impact of environmental factors and includes a set of adaptation and growth strategies to neutralize and flexibly adapt to their negative impact.It is shown that the model of strategic management in dairy farming should focus on the intensive type of development on the basis of introduction of innovative technologies and includes six consistent stages.
It is highlighted that the dairy farming development strategy in agricultural enterprises should be focused on maximizing the “return” of the incentive characteristics of the industry basing on the flexible use of all strategy elements.It is argued that one of the measures to mitigate the negative impact of environmental factors on the dairy farming development is to increase the internal potential of innovation in both production and marketing environments of agricultural enterprises.
Key words: strategic management, development strategy, enterprise, dairy cattle breeding, innovations.
Methodical approach to evaluation of commodities’ advancement efficiency using online-instruments
Authors: Kapinus L. , Rozumei S. , Skrygun N. , Semenenko K.
Published: February 2021

This article summarizes arguments and counter-argument within the limits of scientific discussion through the question of efficiency of the use of online-instruments of commodities advancement to the market. Primary purpose of undertaken research was the development of the methodical approach to the efficiency evaluation of commodities advancement with the use of online-instruments and research of practical aspects of application of online-instruments of new commodity advancement to the market.
In accordance with the aim the material in the article is carried out in the logical sequence: first methodical approach offers theoretical level in relation to the efficiency evaluation of the use of online-instruments of commodities advancement, the feature of that is systematization of evaluation process in threestages: preparatory, analytical and administrative, that all owstoaccept effective administrative decisions oneachlevel. As part of the preparatory stage it is necessary to define the aims, tasks, terms, methods, receptions of efficiencyevaluation of the use of online-instruments of commodities advancement.
The analytical stage is characterizedby the extensive work. According to the offered methodology, there will be the evaluation and analysis of communication indexesand economic efficiency of online-advancement and calculation of integral index of evaluation efficiency of the use of online-instruments of commodities advancementon the basis of the system of evaluation indexes.
The third type is administrative. On the basis of generalization of results of efficiency evaluation of the use of online-communications it is expedient to work out suggestions in relation to the increase of commodities’ efficiency advancement of online-instruments and work out the complex of events in relation to the removal of the educed lacks of complex on-line-advancement. Development of strategies, control after implementation of the events and their coordination, will provide efficiency of management of policycommoditiesadvancement in the Internet.
Researches empiric confirm the necessity of the use of online-instruments of new commodity launching to the market and creation of synergy effect at the use of online- and offline instruments of commodities’advancement. The results of undertaken research can be useful to the enterprises of food industry that plan to enter to the competitive market with a new commodity.
Keywords: online-instruments, online-advancement, efficiency, internet-communications, internet marketing.
The influence of the natural-climate zone on the cattle productivity of Ukrainian Black-and-White Dairy breed
Authors: Voitenko S. , Sydorenko O.
Published: February 2021

It has been highlighted the data of researches as for the influence of natural and climatic zones of Ukraine on display of economically useful signs of the most numerous cattle in the country like Ukrainian black-spotted dairy breed. It was the grounds to assert the efficiency of resources use in those conditions to which they are most adapted and have genetically determined potential. It was found that cowsof lactation breeding herds in the Forest-steppe zone produced 7344 kg of milk, which is 242 kg and 1125 kg more than in the Steppe and Polissya regions due to significant variation of the characteristic within each climatic zone (Cv = 11.6– 27,5%). The Polissya zone, where the animals' yieldwere 5764 kg, while in other climates 6982–6992 kg, does not contribute to the high productivity of the first lactation cows. It is proved that the duration of the service period in cows of three natural and climatic zones of Ukraine varied from 106 days in Polissya to 126 days – Forest-steppe, but it did not agree with the output of calves per 100 cows, which in 81 Polissya amounted to 82 and Forest-steppe – 79. The heifers of the Steppe zone are inseminated with live weight of 391 kg at the age of 477 days, and the Forest-steppe and Polissya with slightly less 385 kg and 387 kg, respectively, at the age of 493 days and 517 days. There is no significant difference in live weight at the ages of 6, 12 and 18 months between heifers of different natural and climatic zones of Ukraine, but the degree of development of the trait after 6 months was slightly better in cattle of the Steppe zone. A positive correlation was found between milk yield of first lactation cows of all natural climatic zones and their live weight at 6, 12 and 18 months of age, as well as negative calf age at first insemination (-0.587 ... -0.810) with significant correlation from the cattle of the Steppe zone. A high correlation coefficient (+0.703) was found in cows between live weight of heifers at first insemination and first lactation in the Polissya region. Key words: natural and climatic zones, Ukrainian Black-and-White Dairy breed, cows, yield, lactation, live weight, reproductive ability indicators, selection traits.
Present State, Problems and Methods of Improving System of Medical Rehabilitation of Rescuers and Participants in Elimination of Consequences of Emergency Situations
Authors:   All-Russian Centre for Disaster Medicine Zashchita of Federal Medical Biological Agency, Moscow, Russian Federation, Budnikova L.N. , Komarevtsev V.N. ,   All-Russian Centre for Disaster Medicine Zashchita of Federal Medical Biological Agency, Moscow, Russian Federation, Razumov A.N. ,   All-Russian Centre for Disaster Medicine Zashchita of Federal Medical Biological Agency, Moscow, Russian Federation
Published: February 2021

The purpose of the study is to analyze the current procedure for organizing medical rehabilitation of participants in the elimination of the consequences of emergency situations (ES) and to develop the main conceptual issues of the medical rehabilitation of rescuers in the environment of emergency situations. Materials and methods of research. The study of the state of the system of medical rehabilitation of rescuers in the course of liquidation of consequences of ES began with the study of: the existing procedure for the medical rehabilitation of participants of ES consequences liquidation and rescuers, regulated by the current regulatory legal documents of the Russian Federation; methodological and training manuals in the field of healthcare; official documents of the All-Russian Service for Disaster Medicine (VSMC) on the organization of medical rehabilitation of those involved in the operations and rescuers. The results of the study and their analysis. The state, problems and methods of improving the system of medical rehabilitation of rescuers and participants in the elimination of the consequences of emergencies are considered. The main conceptual provisions on the medical rehabilitation of rescuers in the emergency zone are presented.
Prospects for Use of Ceftolosan-Tazobactam in Providing Medical Care to Victims in a Third-Level Hospital and during Inter-Hospital Medical Evacuation
Authors:   Nikiforov Russian Centre of Emergency and Radiation Medicine, EMERCOM of Russia, St. Petersburg, Russian Federation, Parvanyan S.G. , Shelukhin D.A. ,   Nikiforov Russian Centre of Emergency and Radiation Medicine, EMERCOM of Russia, St. Petersburg, Russian Federation, Voroshilova T.M. ,   Nikiforov Russian Centre of Emergency and Radiation Medicine, EMERCOM of Russia, St. Petersburg, Russian Federation
Published: February 2021

It is noted that nosocomial infections are a serious threat to the safety of hospital patients due to their high prevalence and high mortality rate. The prospects of using a new antibacterial drug ceftolosan-tazobactam as a starting empirical therapy in patients with a high risk of nosocomial infection caused by multidrug-resistant microorganisms in a level III hospital and during inter-hospital medical evacuation are considered.
Psychophysiological Express Control of Persons of Hazardous Occupations Operating Weapons Systems
Authors:   Millitary Innovation Technopolis «ERA», Anapa, Russian Federation, Ivanovsky V.S. , Shchelkanova E.S. ,   Millitary Innovation Technopolis «ERA», Anapa, Russian Federation, Markin I.V. ,   Millitary Innovation Technopolis «ERA», Anapa, Russian Federation
Published: February 2021

The article presents the relevance of the development of methods for rapid control of the psychophysiological state of persons of hazardous occupations (OP), managing weapons systems, and the tasks solved with their help. The issues of improving the system of psychophysiological support of the professional activities of military operators in order to increase their professional reliability and preserve professional health are considered. The technology of vibration imaging is described, which makes it possible to assess the psychophysiological state without contact and quickly (testing time – 1 min). Examples of its practical application in training and pre-shift psychophysiological control are given.
KRISIS COVID-19: PERSPEKTIF HUKUM INTERNASIONAL TERHADAP PANDEMI
Authors: Nadilla Sabrina
Published: February 2021

Kegagapan negara-negara dunia dalam penanganan Pandemi Covid-19 menimbulkan pertanyaan mengenaieksistensi kerangka kerja yang digunakan untuk menyelesaikan krisis kesehatan global. Lebih jauh, artikel inimengungkapkan bahwa hukum internasional memiliki mekanisme khusus dalam penanganan pandemi melalui operasionalisasi International Health Regulation (IHR) yang dikoordinasikan secara global oleh organisasi internasional WHO. Melalui perspektif hukum internasional, artikel ini bermaksud mengelaborasi kerangka kerja hukum internasional yang memuat kewajiban, kewenangan, prosedur, serta peran dan tantangan yang dihadapi pada penanganan pandemi global, termasuk dalam krisis Covid-19 yang masih bergulir hingga saat ini. Artikel ini menemukan fakta bahwa, IHR 2005 sebagai kerangka kerja hukum internasional, tidak bisa dianggap sebagai instrumen ’one size fits all’ yang dapat menyelesaikan seluruh permasalahan penanganan krisis kesehatan global.
ASPEK HUKUM KESELAMATAN DAN KESEHATAN KERJA (K3) BAGI TENAGA MEDIS DAN KESEHATAN DI MASA PANDEMI
Authors: Sholikin M. Nur , Herawati
Published: February 2021

Sejumlah data menunjukkan kejadian tenaga medis dan tenaga kesehatan yang terkena penyakit akibat kerja karena COVID-19. Sejumlah potensi bahaya bagi pekerja di rumah sakit menempatkan pada risiko tinggi keselamatan kerja saat pandemi ini. Bagaimana peraturan perundang-undangan mengatur perlindungan kerja bagi tenaga medis dan kesehatan terutama pada masa pandemi? Untuk menjawab permasalahan tersebut dilakukan melalui identifikasi dan analisis terhadap peraturan perundang-undangan terkait. Terdapat sejumlah peraturan perundang-undangan telah mengatur aspek keselamatan dan kesehatan kerja di rumah sakit. Bahkan terkait dengan jaminan kesehatan kerja terdapat juga pengaturan program pencegahan dan pengendalian infeksi. Sementara itu dalam hal perlindungan jaminan keselamatan dan kesehatan kerja pada masa pandemi, masih terdapat beberapa kelemahan dalam pengaturan yang menimbulkan ketidakpastian pemenuhan jaminan perlindungan tersebut. Untuk mengoptimalkan perlindungan tenaga medis dan tenaga ksehatan pada saat pandemi pemerintah perlu melakukan pengawasan dan pemberian dukungan bagi pelaksanaan keselamatan dan kesehatan kerja dan pelaksanaan program pencegahan dan pengendalian infeksi. Selain itu, diperlukan juga pengaturan teknis pemberian penghargaan, kompensasi dan pendayagunaan tenaga kesehatan dengan memastikan pemenuhan hak tersebut bagi tenaga kesehatan yang mempunyai tugas penanganan COVID-19 dan bagi pekerja yang terkena penyakit akibat kerja karena COVID-19.
CONSTITUIÇÕES BRASILEIRAS E SEU PROGRESSO NO CONTEXTO EDUCACIONAL
Authors: Cordeiro Silvia Laís , Hulse Levi
Published: February 2021

Neste artigo objetivou-se elencar de forma sucinta pontos pertinentes com relação à educação nas Constituições da República Federativa do Brasil. Demonstra como a educação vem se impondo e ganhando notoriedade ao decorrer dos anos e mudanças no país. As constituições vêm a favor do coletivo, expondo perspectivas as quais podem ou não ser almejadas.
Palavras-chave: Constituições Brasileiras. Cenários Políticos. Transição de Valores.
ABSTRACT: This article aimed to summarize pertinent points in relation to education in the Constitutions of the Federative Republic of Brazil. It demonstrates how education has been imposing itself and gaining notoriety over the years and changes in the country. The constitutions come in favor of the collective, exposing perspectives which may or may not be desired.
Keywords: Brazilian Constitutions.  Political Scenarios. Transition of Values.