bluuebunny/crossref_metadata_2025 huggingface dataset:
Ferrophosphorus aggregates shielding properties on heavy concrete exposed to gamma-rays, cesium-137 source
Authors: Farokhzad Reza , Dadashi Amir , Sohrabi Ashkan
Published: January 2023

This study aims to investigate the linear attenuation coefficient and density of samples made of ferrophosphorus and typical aggregates, steel powder, and nanosilica powder in different ratios. Therefore, 60 concrete samples with dimensions of 15×15×15 cm and different contents of the mentioned materials were prepared. After the density was measured, the linear attenuation coefficients of the samples were measured by gamma radiation emitted from the cesium-137 source. The results showed that ferrophosphorus was the most effective factor in increasing the linear attenuation coefficient and the density of the concrete. After ferrophosphorus, steel and nanosilica powder – although much less than ferrophosphorus – increased the density and linear attenuation coefficient. The sample made of 100% ferrophosphorus aggregate and 20% steel powder without nanosilica powder had the highest density of 4395 kg/m3, and the sample made of 100% typical aggregate and 10% steel powder, without nanosilica powder, had the lowest density equal to 2269 kg/m3. The highest linear attenuation coefficient – 0.295 was related to the sample made of 100% ferrophosphorus, 30% steel powder, and 5% nanosilica powder. The lowest linear attenuation coefficient – 0.151 was related to the sample made of 8% nanosilica, without the ferrophosphorus and steel powder. The results indicated that the concrete density was directly correlated with the linear attenuation coefficient.
Mechanical and durability properties of sintered fly ash aggregate concrete
Authors: Siva Chandran S , Chinnaraju K
Published: January 2023

Conservation of natural resources and effective management of waste materials that can harm our environment is a challenging phenomenon. This paper is focused to study the different properties of M30 grade concrete where the coarse aggregate has been completely replaced by commercially available sintered fly ash aggregate and it has proved to meet the target strength. To further improve the crack resisting behavior and tensile strength,basalt fibers was incorporated. The incorporation of fibers has improved the mechanical properties to around 3-4%. The RCPT and water absorption test has proved that the durability properties of sintered fly ash aggregate are within the standard specified.
Opportunities for the use of hazelnut shell as a lightweight aggregate in the production of concrete
Authors: Özocak Murat , Sisman Can Burak
Published: January 2023

Today, the increase in heating and energy costs has increased the importance of insulation in buildings and new searches are being made for this purpose. As a result of these searches, studies on the production of lightweight concrete have come to the forefront, to improve the insulation properties of concrete. In this study, the usability of hazelnut shells, one of the important agricultural products of Turkey, which are post-harvest waste materials as a lightweight aggregate in concrete, was investigated. To this end, concrete was produced by replacing the aggregate with hazelnut shell by 3%, 6%, 9%, 12% and 15%, and the physical, mechanical and thermal properties of this concrete, were examined. As a result of the study, it was determined that hazelnut shell, which is an agricultural waste, could be used as aggregate in the production of concrete and that lightweight concrete with sufficient strength and durability and improved heat and sound insulation could be produced, provided that the amount of hazelnut shell to be added to the mixture would not be more than 10% of the aggregate.
Preliminary calciner
Authors: Kurdowski Wiesław
Published: January 2023

In the former years, the total amount of heat indispensable for clinker formation was obtained in the kiln burner, which determined the maximum of this heat, thus the kiln efficiency was simultaneously determined. The kiln has the double role: the hearth and the chemical reactor. The diminishing of the heat loading of the kiln can be obtained only by emitting the calcination heat of raw materials from the kiln. At the same time, it gives the possibility of significant increase of the kiln productivity, which was already no longer limited by the heat quantity, linked to the kiln burner. In this technology, the kiln burner was only applied to heat the material in the kiln from the temperature of 1100°C to 1450°C, which was fulfil about 15% of the heat, from the entire heat demand of clinker burning. It will be 3050 x 0.15 equal to about 480 kJ/kg of clinker. As is known in the clinker formation process, radical changes of the properties of the roasting material occur, which are started at the temperature of 1260°C and are linked with the liquid phase appearing. After the liquid phase appears, the process cannot be conducted in the fluid reactor, because the material can form the roasting formation on the reactor walls, which can cause its plugging. From these reasons, the best technological solution was the division of the process into two operations, applied in two different equipments: (a) heating and calcining conducting in the fluid heater, which was the preliminary calciner, and (b) sintering and clinker formation in the rotary kiln. This technological division caused the high kiln capacity, because the quantity of heat needed in the kiln was low and the heat charge of the zone of fuel burning in the kiln burner was also low
Development of a new short-term concrete prism test method (SCPT) to improve predictability for potential alkali reactivity of aggregates
Authors: Hafçı Alkan , Turanlı Lutfullah
Published: January 2023

This experimental study basically aims to come up with a new method [SCPT], which would be a reliable accelerated performance for predicting potential alkali reactivity of aggregates, because available test methods whether long or accelerated, have some drawbacks such as long test duration in the CPT [concrete prism test] and false tests results in the AMBT [accelerated mortar bar test]. The new method called as short-term concrete prism test [SCPT] has been designed with analysing the degree of correlation between the designed new methods and available test method by examining 32 types of aggregate, whosefield performances can be observable. Common specifications of the SCPT includes 50 mm x 50 mm x 200 mm concrete prisms, 16 mm maximum aggregate size, storage temperature at 60 °C and soak solution with 0.35N NaOH + 1% CaCl 2 and takes only 28 days.
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Authors: A
Published: January 2023

wrong DOI
Influence of the aggregate type on delayed ettringite formation
Authors: Owsiak Zdzisława
Published: January 2023

The studies carried out aimed to define the influence of the aggregate type on the simultaneous occurrence of the alkali-silica reaction and delayed ettringite formation. In their composition, sand or calcium aggregate and aggregates containing 6% opal with graining of 0.5 to 1.0 mm, were used. Mortars from each type of aggregate and Portland cement containing 1.2% Na2Oe and 4.5% SO 3 were prepared, and then cured in water at 90°C. Studies have shown a great influence of the type of aggregate on the expansion caused by the delayed ettringite formation. In this case, the calcium aggregate visibly reduces the expansion of a mortar caused by delayed ettringite formation, while it has a much smaller influence on the expansion of the bars, caused by the potassium reaction with opal. Microstructure observations have shown that sodium-potassium-calcium silicate gel and ettringite around the aggregate grains, are responsible for expansion in the case of sand with opal addition.
A Qualitative Study of Women Domestic Workers using Public Transport and the Adoption of Purdah
Authors: Javaid Shafaq
Published: January 2023

The aim of this research is to analyze the key issues concerning the mobility of women domestic workers working in Lahore, Pakistan, through a qualitative feminist approach. For data collection, the walking interview method, which entailed walking alongside the participants and asking them questions regarding the study questions. Qualitative thematic analysis was used to analyze the interviews with ten participants. The findings reveal that the key deterrent limiting women’s mobility includes the extremely patriarchal socio-cultural norms that surround women’s lives. Two broad themes were found including: (i) Purdah as an Extension of One’s Agency; and (ii) Personal Safety, Cost, and Overcrowded Public Transport. This paper changes the societal implications of purdah while also shifting the narrative that surrounds it through the way women participants use purdah to extend their very limited agency. The study also helps to shed light on Pakistan’s public transit system through the eyes of women domestic workers who view it as a deeply unsafe and uncomfortable mode of traveling within the city. Keywords: Purdah, Public Transportation, Women domestic workers, Patriarchy, Mobility
Airway Obstruction from Intralaryngeal Extension of Thyroglossal Duct Cyst in an Elderly Man: A Case Report
Authors: Contreras Gerson , Lingan Milabelle
Published: January 2023

ABSTRACTObjective: To report an unusual presentation of thyroglossal duct cyst causing airway obstruction in an elderly man.

Methods:

Design: Case Report

Setting: Tertiary Government Training Hospital

Patient: One

Results: A 71-year-old man with an anterior neck mass was brought to the Emergency Room due to progressive difficulty of breathing. A smooth, non-ulcerating right supraglottic mass obstructed the airway. Following an emergency high tracheotomy, contrast computed tomography scan of the neck revealed a hypodense mass with peripheral rim enhancement in the right supraglottis and an extralaryngeal component. Intra-operatively, a dumbbell- shaped cystic mass with a tract connected to the hyoid bone led to a Sistrunk procedure. Final histopathology findings were consistent with thyroglossal duct cyst.

Conclusion: It is possible for an elderly patient with impending upper airway obstruction, dysphonia, and neck mass to still have a benign and congenital thyroglossal duct cyst with intralaryngeal extension.
SIGNIFICANCE OF ADC MEASUREMENTS AS RADIOLOGICAL MRI MARKER IN DETECTION OF METASTATIC LYMPH NODE INVOLVEMENT IN PATIENTS WITH PROSTATE CANCER
Authors: Mytsyk Yu.O. , Pasichnyk S.M. , Kobilnyk Yu.S. , Borzhiievskyi O.A. , Lychkovskyy O.E. , Kowal P. , Pietrus M. , Matskevych V.M. , Dats R.I. , Blavatska O.M. , Stakhovsky E.O. , Gozhenko A.I. , Borzhiievskyi A.Ts.
Published: January 2023

Background: In spite of significant advances in diagnosis of prostate cancer (PCa), the detection and differential diagnosis of metastatic lymph node involvement remains an important clinical dilemma in a large number of cases. Contrast-enhanced abdominal computed tomography and magnetic resonance imaging (MRI), in part when using T1-weighed images (T1-WI and T2-WI), allow evaluating indirectly the presence of invasion in regional lymph nodes by assessing their diameter and morphology. Nonetheless, these techniques do not appear to be sufficiently sensitive for direct identification of lymph nodes with metastatic lesions. Aim: To study the significance of the apparent diffusion coefficient (ADC) of diffusion-weighted MRI in detection of metastatic lymph node involvement in PCa patients. Materials and Methods: The study involved 35 patients with histologically verified PCa. Based on multiparametric prostatic MRI findings and pathomorphological reports, we have performed ADC measurements for pelvic lymph nodes either with (n = 15, mean size 1.78 ± 0.59 cm) or without metastases (n = 20, mean size: 0.94 ± 0.06 cm) in PCa patients who underwent radical prostatectomy with lymph node dissection. Results: No significant diffe­rences were observed when comparing mean sizes of N+ and N– pelvic lymph nodes. At the same time, when comparing mean ADC values for N+ and N– pelvic lymph nodes, we observed a statistically significant difference: 0.74 ± 0.09 · 10-3 mm2/s in metastatic lymph node vs 1.05 ± 0.23 · 10-3 mm2/s in lymph nodes without metastatic involvement (p < 0.001). Conclusion: The use of ADC for diffusion-weighted MRI may provide valuable information for detection of metastatic lymph node involvement in patients with PCa.
A CYTOLOGICAL AND HISTOPATHOLOGICAL CORRELATIVE STUDY ON NEOPLASTIC LESIONS WITH MILAN SYSTEM FOR REPORTING SALIVARY GLAND CYTOPATHOLOGY
Authors: Sridevi B. , Veena R. , Shivashekar G. , Bhuvanamha Devi , Manikandan M. Aswin , Vineetha P. , Dinesh S.
Published: January 2023

Background: Salivary gland tumors are rare. Nevertheless, the accurate preoperative diagnosis of the malignant potential of the lesion is essential for appropriate patient management. The recently published Milan system for reporting salivary gland cytology (MSRSGC) is an effort to provide better communication regarding the nature of lesions to clinicians. Aim: To evaluate the diagnostic utility of fine-needle aspiration cytology (FNAC) of neoplastic salivary gland lesions and the MSRSGC applicability in risk stratification. Materials and Methods: This was a retrospective study of the cytological and histopathological correlation between neoplastic lesions of salivary gland lesions conducted over four years (August 2010 — September 2014) in two tertiary care hospitals. There were 66 cases of FNAC of salivary gland neoplasms. The sensitivity, specificity, positive predictive value, negative predictive value, and overall diagnostic accuracy of FNAC were analyzed. The risk of malignancy for MSRSGC was calculated. Results: The overall diagnostic accuracy, sensitivity, specificity, and positive and negative predictive values were 93.94; 95.5; 99.8; 96.8, and 98.7%, respectively. By correlating the cytological diagnosis of benign neoplasm with histopathological diagnosis, the risk of malignancy was 0% and risk of neoplasm was 100%. For cases in the category suspicious of malignancy, risk of neoplasm was 100% and risk of malignancy was 85%. Conclusion: The present study demonstrated that this salivary gland cytology reporting system was useful in classifying the lesions in well-delineated categories with ease. MSRSGC system of standardized reporting is helpful for guiding clinicians in appropriate management of the patient. However, many multicenter studies with large sample sizes and long-term follow-up are needed along with wide propagation of its standardized reporting format to be adopted universally.
Analysis of Information System Effectiveness Using ISO/IEC 9126 and AHP (Analytical Hierarchy Process) Methods at PT ZYS
Authors: Sabpril Iqbal Maulana , Alfin Achmad Arif
Published: January 2023

Sistem Informasi Manajemen sangat dibutuhkan pada saat ini. Sistem informasi dapat membantu eksekutif perusahaan dalam mengumpulkan, memproses, menyimpan dan mengkomunikasikan informasi terkait operasional perusahaan ke berbagai tingkat manajemen. SOS merupakan sebuah sistem informasi manajemen yang berfokus pada pengelolaan administrasi penjualan online di PT. ZYS. Sistem informasi tentunya memerlukan pembaharuan terkait pemenuhan kebutuhan kualitas perangkat lunak, sehingga diperlukan evaluasi kebutuhan kualitas oleh pengguna. Penelitian ini fokus pada evaluasi aplikasi SOS berdasarkan penilaian kelompok pengguna sistem informasi pada PT. XYZ. Evaluasinya menggunakan kuesioner dengan 6 atribut dan 21 atribut kualitas berdasarkan ISO/IEC 9126. Analytical Hierarchy Process (AHP) digunakan untuk menentukan nilai konsistensi tingkat prioritas kriteria. Tahap pertama yaitu melakukan spesifikasi sub kriteria yang digunakan sebagai pertimbangan dalam mengevalusai aplikasi. Tahap kedua memberikan rating pada setiap kriteria setelah itu melakukan matriks normalisasi dan mencari ʎ maks untuk mencari Consistency Index (CI) dan hasil akhir menentukan faktor kualitas yang dimiliki oleh software dan menguji nilai Consistency Rasio (CR). Hasil perhitungan matriks berpasangan menunjukkan bahwa faktor kualitas yang dimiliki oleh sistem informasi SOS adalah functionality dengan bobot 1,72, kemudian diikuti dengan reliability dengan bobot 1,54. Setelah itu berturut-turut Efficiency, Maintainability, dan portability dengan bobot 1,03, 0,98, 0,49 dan terakhir 0,24.
Estimation of Sound Source Direction Using Fourier Transformation Method with Arduino
Authors: Setiawan Aris
Published: January 2023

Gelombang suara memiliki getaran yang dihasilkan dari benda berupa sinyal analog yang berubah terhadap waktu secara kontinyu. Suara dapat didengar karena merambat melalui medium, medium ini bisa berupa zat padat, zat cair,dan zat gas. Adapun bunyi yang dapat ditangkap oleh manusia yaitu memiliki frekuensi antara 20 Hz hingga 20.000 Hz. Sedangkan mikrofon sebuah alat yang mengubah getaran suara menjadi besaran tegangan listrik analog yang datanya dapat diolah. Pemanfaatan mikrofon digunakan sebagai pengganti telinga. Pada penelitian ini, keluaran mikrofon kemudian diolah dengan ADC (Analog Digital Converter) eksternal. ADC eksternal dari mikrokontroler digunakan untuk mendapatkan data digital. Pengolahan data tersebut menggunakan metode tranformasi fourier dengan memanfaatkan perhitungan trigonometri. Hasil dari perhitungan data akan mendapatan besaran sudut arah suara dengan rentang 0° – 180° yang digunakan untuk menggerakan servo dalam menunjuk arah suara dan menampilkan nilainya pada LCD Penggunaan sudut arah berfungsi untuk memfokuskan titik letak suara dengan intensitas tertinggi supaya lebih terpusat. Pada penelitian ini, tingkat akurasi dari alat yaitu sebesar 67,36%
The occurrence of the jellyfish Aequorea cf. forskalea in the Adriatic Sea
Authors: Malej Alenka , Supić Nastjenjka , Violić Ivana , Pestorić Branka , Paliaga Paolo , Vodopivec Martin , Bojanić Natalia , Lučić Davor
Published: January 2023

Jellyfish are becoming an increasingly important component of studies of the global marine environment, as their frequent mass phenomena affect ecosystem performance and have economic and health consequences. Recent research has focused primarily on mass occurrences of scyphozoans and ctenophores, while less attention has been paid to hydromedusae blooms, which can also have significant impacts on the marine ecosystem with economic consequences. Like many members of the Scyphozoa and Ctenophora, Aequorea species can be numerous and form blooms. Based on surveys from 2000 to 2020 and information provided by marine professionals, we examine the (multiannual) variability, seasonality, and spatial distribution patterns of the poorly studied temperate species Aequorea cf. forskalea (Hydrozoa: Leptothecata). We hypothesized that this macrogelatinous jellyfish with a bipartite life cycle (benthic polyps and planktonic medusae) is sensitive to seasonal and long-term temperature fluctuations, particularly because temperature has been shown to play a critical role in mediating transitions in the life cycle of cnidarians. The cold-water affinity of A. cf. forskalea was confirmed by a significant negative correlation with temperature and the most frequent occurrence during the winter-spring period. For the northern Adriatic (Gulf of Trieste), sea temperature data and semi-quantitative plankton data are available for the first decade of the 20th century, allowing comparison of the historical data (1900-1911) with our current data set. Compared to historical records, the current occurrence of A. cf. forskalea differs significantly. With the warming of the northern Adriatic Sea since the beginning of the 20th century, the current phenology of A. cf. forskalea has changed, probably related to the delayed production of medusae by hydroids in autumn, the absence of medusae in this season and their less frequent occurrence in winter.
Prvi nalaz mača srebrenjaka Trachipterus trachypterus Gmelin 1789
(Lampriformes) u Sicillijanskom tjesnacu
Authors: Geraci Michele Luca , Scannella Danilo , Vitale Sergio , Gancitano Vita , Gancitano Salvatore , Sardo Giacomo , Falsone Fabio
Published: January 2023

On July 7th 2018 a specimen of Mediterranean dealfish (Trachipterus trachypterus Gmelin 1789) was caught in the shallow waters of Selinunte (in the South-Western coast of Sicily) by trammel net. It was a female in maturing phase and the gonadosomatic index resulted as 1.1%. The specimen measured 1638 mm in total length and weighed about 2480 g. The estimated age through growth increments in vertebra was of 41 years. The finding of the Mediterranean dealfish in the Strait of Sicily might be linked to its spawning period during which it approaches the shallow waters. The present specimen represents the first record in the Strait of Sicily.
Relationships of Mental Health With Psychological Vulnerability in Nurses Working in COVID-19 Wards: Mediated by Emotional Processing and Perceived Social Support
Authors:   Department of Psychology, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran., Mazhari Rozita , Farhangi Abdolhassan ,   Department of Psychology, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran., Naderi Farah ,   Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
Published: January 2023

Background: Working in a hospital involves a lot of long-term stress, which affects people who work in helping professions and are immersed in others’ problems. The present study aimed to determine the relationships between psychological capital, mental health, and health anxiety with psychological vulnerability through the mediating role of emotional processing and perceived social support in nurses working in COVID-19 wards in Shiraz City, Iran, in 2021. Methods: This research is a correlational study using structural equation modeling (SEM). The sample size included 200 nurses from the COVID-19 unit of hospitals in Shiraz. The samples were selected through multistage random sampling. Accordingly, five hospitals in Shiraz were selected randomly, and then, 200 nurses were selected from their COVID-19 unit. The research instruments included the psychological vulnerability scale, the general health questionnaire-28, the psychological capital questionnaire, the health anxiety questionnaire, the emotional processing scale, and the multidimensional scale of perceived social support. The data were analyzed in AMOS-25 using SEM and Pearson correlation coefficient. Results: The SEM showed that the proposed model fitted the data well. The direct paths from perceived social support, psychological capital, emotional processing, and mental health to psychological vulnerability were negative and significant (P<0.01). The relationships of health anxiety with psychological vulnerability and perceived social support, emotional processing with mental health, and psychological capital with perceived social support were all positive and significant (P<0.01). There was no significant direct relationship between health anxiety and perceived social support and between psychological capital and emotional processing. Conclusion: Psychological capital and emotional processing played effective roles in reducing nurses’ psychological vulnerability and could thus be used to mitigate psychological damages caused by working during the COVID-19 pandemic.
Prevalence of Self-medication Practices and Their Associated Factors in Puducherry, India: A Cross-sectional Study
Authors:   Department of Community Medicine, Aarupadai Veedu Medical College and Hospital, Puducherry, India, Johnbasha Aumrin Fathima , Tamilchelvan Vignesh ,   Department of Community Medicine, Aarupadai Veedu Medical College and Hospital, Puducherry, India, Kumar Sevvanthi ,   Department of Community Medicine, Aarupadai Veedu Medical College and Hospital, Puducherry, India
Published: January 2023

Background: Self-medication is the most important health issue in developing countries like India. Even though there is abundant healthcare access, self-medication is still chosen by the patients. The purpose of this study was to estimate the prevalence of self-medication and the factors associated with self-medication practices among the urban fisherman population in Puducherry. Methods: This cross-sectional study was conducted from July 2021 to December 2021 (6 months) among 18-60 years fisherman population residing in the urban practice areas. The sample was selected by simple random sampling technique using a semi-structured questionnaire after obtaining informed consent from the participants. Data analysis was carried out by chi-square test and proportions. Results: The majority of participants about 77.8% belonged to the 30-60 years age group; and, 57% were male and 43% were female. The prevalence of self-medication was 67%. Socioeconomic status had a statistically significant relationship with self-medication among other sociodemographic factors including age, gender, education, and occupation. It was found that 82.05% of participants practiced self-medication for their previous similar complaints. The source of information regarding self-medication obtained from the pharmacists is 55.8%. Among the various types of self-medication, allopathy drugs were among the most important reasons because of their easy access. Most self-medication was taken for the symptoms such as cough, cold, flu, headache, and myalgia, and the side effects were found to be 12.1% for self-medication. Conclusion: The majority of the participants used self-medication for cough, cold, flu, headache, myalgia, etc. in case of emergency to hospitals. Awareness about health hazards, drug resistance in prolonged self-medication practice, and regulation of pharmacies limit self-medication.
The Hidden Side of Students’ Marriage at an Iranian University: A Qualitative Study of Achievements and Barriers
Authors:   Department of English Language, Sabzevar University of Medical Sciences, Sabzevar, Iran., Shomoossi Nematullah , Torkmannejad Sabzevari Marzieh ,   Medical Department, Sabzevar University of Medical Sciences, Sabzevar, Iran., Rad Mostafa ,   Iranian Research Center on Healthy Aging, Sabzevar University of Medical Sciences, Sabzevar, Iran., Amiri Mostafa ,   Department of General Courses, School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran.
Published: January 2023

Background: The celebration of university students’ marriage ceremonies in Iran nearly dates back three decades, but its positive and negative aspects require further reconsideration. This study is intended to explore those aspects in the words of university students who married during their studies at the university. Methods: In this qualitative study, a qualitative content analysis method was used to evaluate the experiences and perceptions of students. Sixteen university students (8 couples) were selected through purposive sampling and interviewed at Sabzevar University of Medical Sciences, Iran, in 2016. The participants, who were newly-wed couples with an age range of 18 to 28 years, attended a semi-structured in-depth interview. Results: The analyzed data emerged as four major categories (and eleven subcategories), including (a) inspirational and prompting factors (membership in the student unions, enhanced opportunity to know peers, attitude change towards marriage on the campus, and peers sharing experiences of marriage on the campus), (b) existence of supportive resources (existence of social support, and existence of economic support for marriage on the campus), (c) barriers and failing marriages (barriers against marriage on the campus and causes of failure), and (d) achievements in marital life (social maturation, enhancing life goals, and maturational development in the married life). Conclusion: University students’ marriage on campus offers couples a successful married life in the future. Social maturation and development in married life are the fruit of such marriages; however, economic problems and low social and family support are still among the concerns for university students wishing to marry at the university.
Розробка системи кріплення мікрохвильового радара для виявлення перешкод
Authors: Pavlikov Volodymyr , Zhyla Semen , Humennyi Andrii , Lolenko Andrii
Published: January 2023

The subject of scientific research is the consideration of layout options and the possibility of placing a microwave radar on board a helicopter. The goal is to develop a methodology for creating a three-dimensional parametric model of the radar mounting system. The task is to develop an algorithm (sequence of steps) for creating a three-dimensional parametric radar mount model without making changes to the basic design and layout of an existing aircraft. The methods used are: methods of analytical geometry; methods of scanning three-dimensional objects; methods of three-dimensional parametric modeling using modern computer-integrated CAD\CAM\CAE systems in the context of existing assemblies. The following results were obtained. On the basis of the scanned point cloud, a parametric model of the nose of the aircraft was created, the area of additional equipment installed on the aircraft was determined, a microwave radar mounting system was developed, a three-dimensional model of the mounting system was made, and design documentation was developed for it. Conclusions. The scientific novelty of the obtained results is as follows: a general algorithm, stages of design and three-dimensional parametric modeling of the aircraft unit using the methods and principles of reverse engineering have been developed. The implementation of this algorithm, methods and principles of reverse engineering is presented on en example of the creation of a microwave radar mounting system on the F1 compartment of the Mi8-MSB1 helicopter. The work presents the stages of designing a platform for attaching a microwave obstacle detection radar to the frame of the F1 compartment Mi-8MSB1 helicopter, as well as the radar scanning zone during the flight.
Priority areas of police bodies’ activity in ensuring the citizens’ rights in the conditions of martial law legal regime in Ukraine
Authors: Bezpalova O. I.
Published: January 2023

The specifics of the activities of the police bodies regarding the protection of citizens' rights during the legal regime of martial law have been disclosed. The differences in the powers granted to police bodies in peacetime and during countermeasures against internal threats of martial law have been characterized. Factors, due to which the police authorities significantly reduced the number of administrative and criminal offenses, the commission of which prevailed in peacetime have been established.

The general circle of citizens’ rights, which are violated during the operation of the legal regime of martial law as a result of active hostilities, occupation of certain regions and settlements, has been defined. Those rights of citizens whose duty to prevent violation, protection and restoration rests with police bodies have been systematized. The priority directions of the police authorities’ activities in ensuring the rights of citizens during martial law have been outlined, the emergence of which is due to the action of this legal regime introduced as a result of a full-scale invasion of the territory of our state. The peculiarities of the implementation of each of the selected directions have been characterized. Quantitative and qualitative indicators of the activity of individual police bodies and divisions in the field of protection of citizens’ rights during martial law have been presented. The specifics of the implementation of powers by police bodies to record and investigate war crimes, strengthening the evacuation mechanisms of the state, providing police services to all categories of the population, and paying increased attention by the police to the use of additional guarantees of protection and protection of citizens’ rights have been clarified. The need to develop effective algorithms for police actions in conditions of active hostilities and in de-occupied territories has been argued, in particular regarding: demining of territories and buildings by investigative-operational groups equipped with mobile forensic laboratories; identification of collaborators and sabotage groups; recording and documenting war crimes depending on their type; investigation of certain types of war crimes; implementation of measures of police custody, taking into account the significant increase in the number of persons who need such measures; inspections of vehicles on highways and roadblocks; searching for missing persons.
Qualification problems of war-related criminal offences documented on the de-occupied territories of Ukraine
Authors: Orlov Yu. V. , Pribytkova N. O.
Published: January 2023

The article is devoted to the characteristics of the main qualification problems of criminal offenses related to the war in the context of the de-occupation movement. Based on the analysis and synthesis of the experience of investigators from the National Police, the Security Service of Ukraine, as well as prosecutors on the de-occupied territories of Ukraine, four basic problematic subject areas with the corresponding typical situations of the law on criminal liability application have been identified: criminal legal qualification of artillery shelling, mining, causing death to a person, and other actions of physically detained representatives of the aggressor state. For each zone and situation, the main approaches to the qualification of documented criminal offenses and other events used in law enforcement practice have been identified. A critical analysis of these approaches has been carried out, shortcomings are identified, and ways to eliminate them are proposed.
Taking risky actions as a basis for prosecuting the officials of the business company
Authors: Zhornokui V. H.
Published: January 2023

On the basis of the conducted analysis, it has been concluded that the responsibility of the officials of entrepreneurial companies in modern law is studied in the context of corporate governance as one of the elements of the management and control system of companies and one of the means of ensuring their responsible management. At the same time, the issue of clear delimitation of powers between the bodies of an entrepreneurial company is closely related to the issue of liability of their officials to the company itself, since their liability always arises as a result of violation of the duties assigned to a particular body (to one or another official).

It is the specific definition of the rights and obligations of persons performing the functions of the bodies of a business company, and their activities on behalf of the company in good faith and reasonably and without exceeding their powers that forms the basis for the stability of property and non-property corporate relations within the corporate governance of a business company.

The essence of risky actions as grounds for bringing to responsibility of officials of an entrepreneurial company has been clarified. It has been concluded that, given the essence of the risky activities of an entrepreneurial company aimed at making a profit and its further distribution among the participants, the actions (inaction) of the participants of relations within the relevant legal entity contain risks of both economic and legal content. Such risks should be classified into justified and unjustified, which are associated with the further possibility of bringing to justice the persons guilty of causing damage to the participant of corporate legal relations. It has been emphasized that it is the justified nature of entrepreneurial risk in the actions of persons performing the functions of the bodies of an entrepreneurial company, and their reasonable, conscientious, with due care and prudence activity, as well as taking all measures for the proper performance of duties and prevention of adverse legal consequences for the company, allows o talk about their release from liability for damages.

It has been noted that the legal mechanism of civil liability of officials to the business company for actions that are risky and may cause damage to the company needs to be improved in domestic law.
The role and place of the High Qualifications Commission of Judges of Ukraine in the justice system of Ukraine
Authors: Teremetskyi V. I.
Published: January 2023

It has been established that during the judicial reform in the justice system of Ukraine, bodies of judicial governance were formed – the High Council of Justice and the High Qualification Commission of Judges of Ukraine. These bodies were designed to ensure: organizational conditions for the selection, qualification assessment, career, disciplinary responsibility of judges and their dismissal from office; transparency of court activities; administration of fair and impartial justice; compliance of judges with professional ethics and integrity. It has been proven that the problems of the formation of these bodies and the impossibility of their exercising their powers are an obstacle to solving the issues of the selection of judges, the formation of an independent and professional judicial corps.

A comparative analysis of the powers of the High Qualification Commission of Judges of Ukraine and the High Council of Justice as bodies of judicial governance has been carried out, and the prospects for their further functioning for the urgent solution of personnel problems in the sphere of justice have been determined. A number of scientific and practical proposals for amending the current legislation in the context of determining the legal status of the High Qualification Commission of Judges of Ukraine and eliminating the duplication of powers of these bodies related to the selection of judges have been analyzed. The main provisions of the Strategy for the Development of the Justice System and Constitutional Judiciary for 2021–2023 and other legislation on the outlined issues have been characterized.

The need to further ensure the institutional independence and transparency of the High Qualification Commission of Judges of Ukraine has been emphasized. The inexpediency of its subordination to the High Council of Justice as a body to ensure the organization of the formation of an honest and highly professional corps of judges has been substantiated. The conclusion has been made about the importance of the existence of the High Qualification Commission of Judges of Ukraine as an independent, autonomous and constitutional body of judicial governance.
Genesis of the structure of legal relations
Authors: Pohribnyi I. M.
Published: January 2023

It is noted that the theory of legal relations appears in the form of a wide and diverse array of knowledge and ideas, of course, it can be accepted as the main source that feeds the very process of further development and improvement of their essence, definition and composition. It is emphasized that two categories of social relations were distinguished in the general theory of law and branch sciences: “organized” and “organizational” social relations. The first always arise to achieve certain goals, the second to normalize the processes “being organized”.

Procedural legal relations take the place of the initial, determining element in the composition of procedural proceedings. In turn, procedural proceedings are defined as the main element of the legal process, which is a systemic formation, a complex of interrelated and mutually conditioned procedural actions. Procedural legal relations, which justify the dynamics of material legal relations, in turn, are derived from the latter, have a subordinate, official character in relation to them, perform the role of a kind of procedural “superstructure” over the material-legal “base”.

The peculiarities of the subjects of procedural legal relations can be seen in the following. First of all, procedural legal relations are characterized by the diversity and multiplicity of the composition of subjects, which are divided into, on the one hand, a group directly interested in the results of the legal process, that is, those whose interests are protected, the realization of subjective rights or powers, the fulfillment of legal obligations the whole arsenal of procedural methods, means and techniques helps to avoid or endure legal responsibility, and on the other hand, a group of leading subjects who perform their functions in “other people’s” interests, for the purposes of the case under consideration.

Procedural powers in their “pure” form cannot be classified as either procedural rights or procedural duties. According to its purpose, it is, in a certain sense, a product of the synthesis of rights and obligations. First of all, this is a component of the competence of the relevant state body or official. Possessing procedural powers, they are not only procedurally authorized, but also obliged to perform actions provided for by the procedural law.

The legally binding nature of powers is expressed in certain limits of their rights in relation to other persons and bodies and at the same time entrusting them with the obligation to use the rights granted to them to achieve their goals. It is necessary to take into account the combination of procedural rights and obligations within the limits of procedural powers, their various compositions in specific legal relations, taking into account the dynamism and multi-subjectivity of the latter.
DISTRIBUTION OF BENTHIC FORAMINIFERA IN THE WATERS FROM OFF PUTRI ISLAND, NORTHERN BATAM, RIAU ARCHIPELAGO
Authors: Jatiningrum Resti Samyati , Mutika Anggun , Gustiantini Luli , Gerhaneu Nineu Yayu , Latuputty Godwin , Divina Agustina Rosi
Published: January 2023

Putri Island is the outermost island bordering Singapore, located north of Batam City, Riau Archipelago Province. A total of 29 sediment samples were collected from the seafloor off Putri Island for foraminiferal study. The purpose of this study is to determine their abundance and distribution related to previous data of environmental conditions. For this study, we analysed quantitative analysis of benthic foraminifera including its abundance, diversity, dominance, and evenness indices. The results denoted that benthic foraminifera was composed of 62 species that belonged to 31 genera. The diversity index was categorized as a moderate to high diversity index (1.85-3.12), with a low to high evenness index (0.37 – 0.78), and a low dominance index (0.05-0.24). This indicates that in general the waters of Putri Island are considered to have a fairly good environment and are quite stable for foraminiferal growth. A slight environmental stability degradation occurred in the north eastern part of the study area which demonstrates high levels of pollutants in the waters. This situation influent the benthic assemblages which are indicated by lowering index diversity at that location.
Molecular Docking Study of Gingkgo biloba Compounds as Potential Inhibitors of SARS-CoV-2
Authors: Afladhanti Putri Mahirah Afladhanti , Romadhan Muhammad Despriansyah Romadhan , Hamzah Haidar Ali Hamzah , Putri Safa Nabila Putri , Angelica Ellen Callista Angelica
Published: January 2023

COVID-19 pandemic caused by SARS-CoV-2 is a challenge for researchers to find effective drugs for this disease. Previous research had identified the role of Mpro, TMPRSS2, RdRp, and ACE2 which were useful as promising drug targets to inhibit SARS-CoV-2. This study aims to identify the potential compounds derived from Ginkgo biloba as potential SARS-CoV-2 inhibitors using a molecular docking study. A total of twenty-one compounds of Ginkgo biloba and comparative drugs were used in this study. The materials were downloaded from rcsb for protein targets and pubchem for comparative drugs and compounds. In this study, Lipinski rule of five using Swiss ADME web tool was used. Moreover, toxicity analysis using admetSAR 2.0 online test also used to predict toxicological profile of compounds. Dockings were carried out on Mpro, TMPRSS2, RdRp, and ACE2 protein targets by AutodockTools 1.5.6 and Autodock Vina. The visualization of molecular interaction was carried out by Discovery Studio v16. Nine compounds met the criteria as drug-like components and were safe. Docking results showed that ginkgolide-C and bilobetin showed strong molecular interactions to all protein targets compared to the comparative drugs and other compounds. In RdRp, ginkgolide-C showed the highest binding energy with -12.7 kcal/mol. Moreover, in TMPRSS2, ACE2 and Mpro, bilobetin also showed the highest binding energy with -12.7, -9.7 and -10 kcal/mol, respectively. Ginkgolide-C and bilobetin have the potential to be developed as SARS-CoV-2 inhibitors. Therefore, in vitro and in vivo investigations are needed to bring these compounds to the clinical setting.
Association between Online Study Stress in COVID-19 Pandemic with Constipation
Authors: Abdillah Aqyl Hanif
Published: January 2023

Background: Constipation is common and affects 15% of population worldwide. Constipation can decrease the quality of life of the patients and may be affected by many factors, including stress. Stress too, is general, especially in students, causing higher rates in suicidal tendency and impairments from various aspects. Today, in COVID-19 pandemic, stress is more common due to numerous causes. One of the causes is online studying in COVID-19 pandemic, which might trigger stress in students. Objectives: To determine the relationship between online study stress in COVID-19 pandemic with constipation in the year 2018 medical students of USU in 2021. Method: This study is an analytical observational study using a cross-sectional design. Samples in this study were 112-year 2018 medical students of USU who satisfied the inclusion criteria and gathered by using a consecutive sampling method. Primary data were acquired by using an online- shared questionnaire in the google form and submitted by the respondents. Then, univariate, and bivariate analyses were performed on the data using SPSS, with the latter using fisher’s exact test. Results: In this study, 78 students (69,6%) were stressed and 8 students (7,1%) were constipated. The analysis between the two variables using fisher’s exact test shown the p value about 0,431, which can be interpreted as no association found between online study stress in COVID-19 pandemic with constipation. Conclusion: Online study stress in COVID-19 pandemic is not associated with constipation.

 

Keywords: Constipation, Pandemic, Online study, Stress
A in(eficácia) da lei 13. 467/17 no âmbito de regulamentação e proteção aos teletrabalhadores
Authors: Morais Marina Ferreira , Ribeiro Thaís Mesquita , Silva Hernando Fernandes da
Published: January 2023

Objetiva-se, através da presente pesquisa científica, tratar acerca da ineficácia da Lei 13.467/17 (denominada popularmente de “Reforma Trabalhista”), em relação à regulamentação de alguns direitos trabalhistas e de proteção aos teletrabalhadores. Nesse contexto, compreende-se que o teletrabalho é uma modalidade laboral exercida, em regra, fora das dependências físicas da empresa, mas que contém todos os demais elementos relativos à uma relação de trabalho. Desse modo, mister que os teletrabalhadores tenham seus direitos, garantias e valores devidamente previstos em Lei. Nesse esteio, tendo como base os resultados e a conclusão obtida, coaduna-se com o posicionamento de que a Reforma Trabalhista não tratou de modo eficaz acerca de todos os direitos e garantias relativas aos teletrabalhadores, incluindo-se aqui os direitos trabalhistas basilares (como por exemplo, o cômputo de jornada de trabalho e o pagamento dos adicionais). Desse modo, é mister que sejam criados novos aparatos legais que possam tratar com mais cuidado acerca das garantias que permeiam essa classe trabalhadora. Além dos pontos tratados, também se compreende que a nova Lei nº 14.442/22 não se mostra eficaz no sentido proposto, principalmente pelo fato de os teletrabalhadores terem que recorrer ao Poder Judiciário para terem a concessão de direitos trabalhistas básicos, ou seja, que deveriam ser concedidos de modo mais fácil. Com relação à metodologia de trabalho adotada, enfatiza-se a utilização de posicionamentos doutrinários e artigos de leis, haja vista que a temática suscitada é puramente teórica.