bluuebunny/crossref_metadata_2025 huggingface dataset:
THE DETERMINANTS OF LIVELIHOOD INCOME DIVERSIFICATION AMONG RURAL FARMING HOUSEHOLDS IN OSUN STATE, NIGERIA.
Authors: Akinyemi M. , Olayinka J. A. , Junaidu M. , Ekpa D. , Bodaga T. , Ibrahim U. M.
Published: June 2021

Rural economy in Nigeria is worst hit with the erratic and unpredictable factors that affect agricultural practice which is the main livelihood of the rural farm households. Consequently, farmers are left with the option of sourcing other means of survival to cope with the hard times due to in consistent and seasonal distribution of income which characterize small farm holders in sub-Saharan African countries. This study investigates the factor influencing the livelihood income diversification among rural farm households in Osun state, Nigeria. Multi stage sampling techniques was employed to sample120 structured and pre-tested questionnaires from 120 rural farm households. Descriptive statistics and multiple regression analysis were used to analyze the data. The results of the descriptive statistics revealed that household heads of age range 50-60 years are 38.6% and about 40.70% had primary education while 26.30% had no education. About 98.31% of the rural households engaged in farming out of which 80.57% have farm size ranging between 1-3 hacters. Logit regression analysis shows that access to credit was positively significant (P<0.05) which implies that farmers that have access to credit were more likelihood to have income diversification. Age of the farmers was negatively significant (P<0.1). It connotes that the older the farmers the lesser the likelihood to income diversification. Income equivalent of household was positively significant (P<0.1). Access to electricity was positively significant (P<0.05). This implies that access to electricity increase farmer’s likelihood to income diversification. The off-farm income analysis shows that education and farm size were respectively negative and
مقصد حفظ المال في الشريعة الإسلامية وأثره على رعاية الأسرة في الإسلام
Authors: Wan Chik Wan Mohd Yusof
Published: June 2021

This research deals with the statement of the close connection between family and money as they are two important intentions of the purposes of Islamic legitimacy. When preserving it, money is the basis of life, and the family in Islam is the pillar and foundation of society. Islamic Sharia has also laid down a number of rules governing the maintenance of the family, whether in existence or not, and those who contemplate them find money an important component of its elements, directly or indirectly, This research paper concludes that wasting money in any way afflicts the Muslim family in bad way, and that all calls to corrupt the family in modern societies are spent without limit on promoting their false concepts, and that the success of reform projects cannot be conceived without providing the necessary money resources for it.
مفهوم المال المشترك بين الزوجين، وشروطه، وضوابطه
Authors: Abdelrahman Walid Mohamed , Abd Halim Muhamad Mustaqim
Published: June 2021

The purpose of this research is to provide explanations on the concept of matrimonial property and its perceptions based on the Sharia Islamic law from the aspect of conditions and principles, along with the manners to reach an agreement for the matrimonial property during marriage solemnization as well as the ways to divide it during a divorce. The research is vital considering the topic has always been a point of contention among the community, especially the Malaysian community where it always involves disputes of husband and wife regarding the matrimonial property and their rights for their possessions within their married life. This research was conducted using the qualitative method by collecting related information and analyze the data obtained to acquire the most accurate results for this topic.
MODEL PUSAT SEHENTI PENGURUSAN HARTA PUSAKA ISLAM (FARAID)
Authors: Hasbullah Mushaddad , Ab. Rahman Azman , Ismail Abdul Manan , Salleh Ahmad Zaki , Zakaria Mohamad Zaharuddin , Musa Zahari Mahad , Abdul Majid Mohd Nasir , Ab Ghani NorFatihah Amlin
Published: June 2021

Faraid merupakan sebuah sistem pengurusan harta selepas kematian yang dianjurkan oleh Islam. Di Malaysia, bidang kuasa hal ehwal Islam termasuk pengurusan harta pusaka adalah terletak di bawah kuasa pentadbiran negeri. Walau bagaimanapun, sistem pengurusan harta pusaka pada masa kini dilihat masih memerlukan kepada penambahbaikan dan transformasi dari sudut pengurusan dan pentadbirannya. Anggaran sebanyak 60 Bilion harta masih belum dituntut disebabkan oleh kesedaran masyarakat tentang pengurusan harta pusaka masih lagi di tahap yang rendah di samping kekeliruan dengan wujudnya pelbagai agensi yang menguruskan harta pusaka. Justeru, pembangunan model pusat sehenti pengurusan harta pusaka atau FOSC (Faraid One-Stop Centre) ini merupakan sebuah inisiatif yang dibangunkan untuk memudahkan masyarakat menyelesaikan masalah berkaitan harta pusaka dengan lebih efisien dan kondusif. Model pusat sehenti pengurusan harta pusaka (FOSC) ini menyatukan semua agensi-agensi yang terlibat dengan pengurusan harta pusaka di bawah satu pusat bagi memudahkan pengurusan harta pusaka. Model FOSC terdiri daripada lima agensi iaitu Faraid USIM Consultant (FUSACA), Bahagian Harta Pusaka Kecil, Amanah Raya Berhad, Majlis Agama Islam Negeri dan Agensi Guaman & Perunding. Faraid USIM Consultant (FUSACA) dijadikan agensi yang berperanan penting dalam membuat keputusan dan memberi khidmat nasihat kepada pelanggan. Manakala, Bahagian Harta Pusaka Kecil sebagai agensi yang merekod kes yang dipohon dan diselesaikan dan Amanah Raya Berhad merupakan agensi yang menguruskan hal yang melibatkan harta alih dan mengeluarkan Akuan atau Arahan bagi harta alih. Majlis Agama Islam Negeri menyediakan khidmat pengiraan jumlah nilaian dan bahagian harta pusaka dan Agensi Guaman & Perunding sekiranya pelanggan memerlukan khidmat peguam atau nasihat. Model FOSC ini boleh menjadi rujukan dan panduan kepada agensi berwajib berkaitan harta pusaka dalam mewujudkan pusat sehenti di negeri masing-masing. Model FOSC ini juga amat diyakini dapat memperkasakan pengurusan harta pusaka di Malaysia dan secara langsung dapat memudahkan masyarakat menguruskan harta pusaka secara mudah dan sahih.
The Contentious Management of Anaplastic Thyroid Carcinoma with Acute Airway Obstruction during COVID-19 Pandemic
Authors: Mohd Safian Ahmad Izani , Ibrahim Kamaruddin , Mohd Isa Seoparjoo Azmel , Mat Lazim Norhafiza , Mohamad Irfan
Published: June 2021

There are many important concerns and issues raised in managing acute airway obstruction cases with regards to the current COVID-19 pandemic. As a further matter, a patient with a huge thyroid mass in anaplastic thyroid carcinoma (ATC) presenting with impending airway obstruction poses treatment challenges, as immediate active intervention is necessary despite the risk of spreading of COVID-19 viruses. The unknown status of COVID-19 of the patient will add additional concerns during active assessment and treatment as patients with this undifferentiated thyroid carcinoma commonly deteriorate fast. This carcinoma may also invade the trachea and result in upper airway obstruction leading to a fatal outcome. Therefore, an appropriate treatment strategy is essential. This report highlights a case of an ATC patient who presented with diffuse cemented-hard anterior neck, whereby the whole management of ATC with acute airway obstruction during this COVID-19 pandemic is purely contentious and challenging. The issue of providing artificial ventilation either via intubation or tracheostomy is made more complicated as the patient presents with an acute upper airway obstruction whilst the COVID-19 status is unknown. While endotracheal intubation approach was not easy, the trachea was also difficult to be identified externally due to the huge ‘cemented-hard’ mass plastered over the compressed trachea. Due to the advanced disease, surgical intervention was not an option.
Narrative Review of Tracheostomy Procedure during COVID-19 Pandemic
Authors: Md Arepen Siti Asmat , Salahuddin Nor Azirah , Hassan Eyzawiah
Published: June 2021

The COVID-19 pandemic has led to an unprecedented increase in the number of critically ill patients requiring mechanical ventilation. Tracheostomy played an important role to wean off the patients from ventilator support and maximize the resources. Tracheostomy is an aerosol generating procedure (AGP) which raised some controversial issues as it carries a risk of infection to healthcare workers.  This study aims to review the issues related to tracheostomy procedure in COVID-19 patients, including the appropriate time to perform tracheostomy, criteria for patient selection, safer approach and risk of infection among healthcare workers. Related information retrieved via online search of original articles, paper reviews, recommendations and guidelines from PubMed, Medline and Google Scholar using keywords tracheostomy, COVID-19, intensive care and mechanical ventilation are summarized in this article. The suggested time frame to perform tracheostomy ranged from 7 to 21 days. Early tracheostomy performed between day 10 to 14 had beneficial outcome for the patients and helped to reduce ICU occupancy. Decision for appropriate timing was made after considering the viral load and the course of the disease. Criteria for patient selection based on suggestions from studies and guidelines were lower oxygen requirement (FiO2<0.4, PEEP< 10), low Sepsis Related Organ Failure (SOFA) scores, ventilation for at least 10 days and signs of improvement. Patient factors, availability of facilities and expertise were important criteria for decision to undertake tracheostomy. The patient outcomes from tracheostomy varied between centers. Most of the studies reported that none of the healthcare workers had been infected by utilizing appropriate PPE and by taking important precautions during the procedure. In conclusion, guidelines were established for tracheostomy procedure during COVID-19 but the decision to undertake the procedure still depend on a case by case basis.
The Impact of COVID-19 Pandemic on Antenatal Visits and Routine Examinations in Paleteang District of Pinrang Regency, Indonesia
Authors: Ibrahim Juliani , Datau Putri Ainun Mutia
Published: June 2021

Maternal and child health care has been a big challenge in Indonesia. Moreover, the COVID-19 pandemic has caused considerable restrictions to maternal and newborn healthcare services. Consequently, community health services faced changes in policies such as limiting antenatal care visits, which resulted in irregular health examination for pregnant women. Therefore, this study aims to examine the frequency of the village midwives’ house visits during the COVID-19 pandemic and the appropriate routine examination of pregnant women. This is an observational study conducted from March to late October 2020. Data were collected in Pinrang sub-district of South Sulawesi using cluster random sampling targeted at pregnant women in six villages. The Chi square test was used to identify possible association between both variables. Out of the 63 pregnant women who participated in this study, more than 54% reported to have been visited and received medical examinations. The results shows that there is a significant relationship between the number of visits and appropriate examination with p value 0.04 and potential risk OR 4.860 (95% CI: 0.956 to 24.703). The village midwives’ visitation frequency was quite high during the COVID-19 but a potential risk was recorded for pregnant women who had incomplete routine examination. Therefore, there is need for collaborative effort between the local government and related sectors to improve maternal home health care services.
Women Empowerment through Training of Face Shield Making from Unused Materials as COVID-19 Prevention Effort
Authors: Dharmayanti Agustin Wulan Suci , Puspitaloka Dyah Ayu
Published: June 2021

COVID-19 is a viral infectious disease with relatively high death rate, especially in Indonesia. The government program, the large-scale social restrictions impacts on all aspects of human life, including the economy, due to which, people’s purchasing power decreases. This condition forces people to think creatively to protect themselves against COVID-19. This study aimed to describe the role of women’s groups in the prevention effort of COVID-19 through training of face shields making, utilizing unused materials. This is an interventional study, describing a training programme for a group of women in Indonesia (n=15 women). Participants of the women empowerment program were women in Ngingas Village, Waru District, Sidoarjo. The programme  took place from July to August 2020 for four weeks, and included evaluating knowledge levels, health education about COVID-19, and training of making face shields. The results showed that the participants’ knowledge of COVID-19 significantly improved after training, in which the pre-test score was 57.67 ± 13.07, and the post-test score was 72 ± 7.97. Although the participants appreciated this training, they were less enthusiastic about production management and marketing. The participants cared for their families and community health. In addition, they were able to think creatively to make face shields from unused materials to protect themselves and their families. Thus, women could be role models for their families and communities to maintain health protocols in the new adaptation era of the COVID-19.
İslam Cumhuriyeti’nde 40 Yıl: İran’da Toplum, Siyaset ve Değişim
Authors: İSKENDEROĞLU Muammer
Published: June 2021

Türkiye’de uzak coğrafyalar bir tarafa, komşu coğrafyalar, hatta birçoğu Osmanlı bakiyesi coğrafyalar ve buralardaki devlet yapıları ve toplumlar hakkında yeterli bir akademik uzmanlaşma ve bilgi üretiminin varlığından söz edilemez. Yakın coğrafyalarımızın devlet ve toplumları hakkında yazan veya söz söyleyenlerin birçoğunun bunu birincil kaynaklar üzerinden yapmak yerine Batı’da üretilen yayınlar üzerinden yaptıkları dikkat çeken bir husustur. 20. asra bir saltanatla başlayan, sonra başka bir saltanatla devam eden, ardından da bir çeşit cumhuriyetle asrı kapatan İran için de bu söylenilenler geçerlidir. Kırkıncı yılını geride bırakan İran İslam Cumhuriyeti’nin devlet yapısı ve toplumu ile ilgili Türkiye’deki akademik bilgi seviyesi ve ihtiyaç duyulan yayın açısından İslam Cumhuriyeti’nde 40 Yıl: İran’da Toplum, Siyaset ve Değişim adlı eser incelenmeye değerdir.
Система керування комплексу енергозабезпечення будівлі
Authors: Асманкіна А.А. , Лорія М.Г. , Целіщев О.Б.
Published: June 2021

Оптимізація використання вичерпних джерел енергії та перехід до відновлювальних набирає обертів в усьому світі. Особливо перспективними наразі стають схеми спільного використання ґрунтових теплових насосів разом із сонячними тепловими панелями (геліоколекторами) та вітрогенераторами. Це дозволяє підвищити частку використання відновлюваної енергії з навколишнього природного середовища в загальному енергоспоживанні.З сучасними досягненнями технологій почала відбуватися відкритість ресурсів, котрі раніше були поза досягненням у використанні будь-ким, крім мілітаризованої сфери. З приходом відкритості існування нових технологій прийшла ера мікромініатюризації та спрощення виробництва елементів, з яких вони побудовані. Для людства постала нова задача – навчитися використовувати відновлювані джерела енергії у повсякденному житті. З’явилась потреба у знаходженні самого підходу використання цих джерел, на ряду з тими, що ми звикли використовувати.

В результаті проведеного аналізу була підтверджена доцільність використання як відновлювальних джерел енергії, так і централізованих та не відновлювальних. Але постало нове питання – як забезпечити систему більш доступним обладнанням та уніфікованими деталями.

У статті розглянута доцільність створення комплексу енергозабезпечення будівлі, здатного працювати дистанційно і незалежно від прямих енергоресурсів, що призведе до значного підвищення рівня захищеності від нестабільності температурних перепадів і перепадів в електричній мережі. Також метою є оптимізація системи енергозабезпечення будівлі. Були розглянуті методи регресійно-корелляційної побудови математичної моделі за результатом експерименту, досліджені побудовані криві емпіричних та експериментально отриманих показників енергозберігаючою комплексної системи будівлі, приведений тепловий баланс та логічно-структурна схема оптимізації.
Шляхи покрaщення тягових і динaмічних покaзників локомотивa
Authors: Кoвтaнець М.В. , Кузьменко C.В. , Ноженко В.C. , Cергієнко О.В. , Климaш A.О. , Ковтaнець Т.М.
Published: June 2021

У cтaтті проaнaлізовaно, що cеред фaкторів, які визнaчaють умови взaємодії cиcтеми «колеcо-рейкa» врaховуютьcя як конcтруктивні оcобливоcті візків локомотивів, тaк і умови руху поїздa. Ходові якоcті локомотивa у вертикaльній площині визнaчaютьcя в оcновному величиною cтaтичного прогину і cтупенем демпфірувaння реcорного підвішувaння, a нa іcнуючих локомотивaх укрaїнcької зaлізниці перевaжaє реcорне підвішувaння з відноcно низькою величиною cтaтичного прогину. Тому для зaбезпечення необхідних динaмічних покaзників при руcі локомотивa з великими швидкоcтями рекомендуєтьcя зменшити величину жорcткоcті реcорного підвішувaння, оcобливо в букcовій cтупені. Зa результaтaми проведеного теоретичного aнaлізу тa доcлідження реcорного підвішувaння локомотивів зaпропоновaні технічні рішення по cтворенню реcорного підвішувaння виcокошвидкіcного рухомого cклaду тa пропонуєтьcя кількa вaріaнтів конcтруктивного виконaння тaкого реcорного підвішувaння. При зacтоcувaнні зaпропоновaних технічних рішень конcтрукції вдоcконaленого реcорного підвішувaння cпільнa роботa першого і другого cтупенів реcорного підвішувaння дозволяє збільшити cтaтичний прогин в 6,25 рaз, що зaбезпечить cтворення виcокошвидкіcного рухомого cклaду.
Контакт гребеня колеса з бічною поверхнею рейки і опір руху при реалізації тягового моменту колесом локомотива
Authors: Кириченко І.О. , Кашура О.Л.
Published: June 2021

Стаття присвячена актуальному питанню ефективності роботи рейкового транспорту, а саме - технічного удосконалення засобів тяги – локомотивів, моторних вагонів. При дослідженні зчіпних властивостей локомотивів на рейковому шляху виключається практично повністю небезпека, що виникає від неадекватності умов експерименту та рядової експлуатації. Але недоліками таких експериментів є значні витрати коштів, часу і головне, складність виділення для дослідження впливу якогось одного фактору. В  теорії тертя кочення основною характеристикою є залежність між силою тертя зчеплення і величиною швидкості відносного ковзання контактуючих поверхонь.
Дослідження трансформації транспортної логістики в Україні в умовах Індустрії 4.0
Authors: Клюєв С.О. , Юров Б.В.
Published: June 2021

В статті розглянуті основні елементи майбутньої модернізації транспортної логістики: розумний рухомий склад, безпілотні транспортні засоби, розподілені реєстри, технології 3D-друку й Інтернету речей. Наведено огляд Індустрії 4.0, її характерні риси та очікування від її впровадження. Досліджено зміни, які  можуть статися із основними складовими частинами логістики в Індустрії 4.0: матеріальним потоком, логістичною операцією, логістичною функцією, логістичним ланцюгом постачання, логістичною мережею, логістичною системою. Показано, що в Індустрії 4.0 в логістичному ланцюгу поставок зменшиться кількість можливих напрямів протікання матеріального потоку, а продукція одразу після її виготовлення буде відправлятися покупцю.
Дослідження несправностей вагонів спеціального рухомого складу в експлуатації
Authors: Кошель О.О. , Сапронова С.Ю.
Published: June 2021

В статті представлено дослідження несправностей спеціального рухомого складу в експлуатації. Виявлено основні групи несправностей вагонів спеціалізованого рухомого складу. Здійснено аналіз несправностей спеціального рухомого складу за кодами груп та за даними технічного обслуговування. Найбільша кількість несправностей припадає на несучі конструкції (рама та кузов вагона), колісні пари. Така ситуація свідчить про необхідність розробки проєктів модернізації для несучих конструкцій, які вже вичерпали призначений термін служби, адже діюча ремонтна документація не передбачає усунення таких дефектів. Проведені дослідження сприятимуть попередженню передвчасного виходу з ладу елементів спеціального рухомого складу в експлуатації.
Проблеми логістики розподілу імунобіологічних препаратів в епоху пандемії
Authors: Михайлов Є.В. , Водолазський О.О. , Долбня Д.М.
Published: June 2021

В умовах світової пандемії велику актуальність придбали питання, пов'язані з логістикою розподілу вакцин від коронавіруса COVID - 19. При реалізації логістичних ланцюжків розподілу вакцин виникає ряд істотних перешкод,  які пов’язані з тим, що транспортування і зберігання імунобіологічних препаратів вимагає створення дорогої охолоджувальної інфраструктури. Проаналізовані основні вимоги до логістичних ланцюжків розподілу вакцин і успішні приклади світової практики по їх реалізації. Встановлено, що звичайні авторефрижератори не підходять для низькотемпературної доставки вакцин. Оптимальним способом низькотемпературного автомобільного перевезення вакцин є перевезення їх у спеціальних термоконтейнерах, які для більшої надійності перевезення завантажуються в рефрижератори. Існує перспектива деякого пом'якшення вимог регулюючих органів до температурних режимів транспортування і зберігання вакцин у міру накопичення даних випробувань на стабільність імунобіологічних препаратів. Запропоновано приділити увагу стимулюванню розробки і виготовлення в Україні спеціальних низькотемпературних термоконтейнерів і створенню мережі низькотемпературних сховищ, які повинні стати регіональними розподільними центрами для  імунобіологічних препаратів.
Вплив вимірювального інструменту на характеристики вихорокамерного насосу
Authors: Роговий А.С. , Нескорожений А.О.
Published: June 2021

При проведенні верифікації важливим є питання відповідності картин течії, отриманих експериментально і чисельним моделюванням, особливо якщо вплив вимірювальної апаратури на потік є істотним. Тому актуальною стає задача встановлення впливу вимірювального інструменту на параметри течії в гідравлічній машині. Автори даної роботи чимало часу досліджують нові струминні насоси, названі вихорокамерними насосами. Ці насоси дозволяють використовувати переваги струминної техніки і лопатевих насосів на основі обертання потоку всередині вихровий камери. Течії в вихрових камерах є одними з найскладніших течій в гідроаеродінаміці, тому вплив вимірювальних приладів на потік може бути дуже значним. У даній роботі на основі чисельного вирішення рівнянь Рейнольдса проведено порівняння картин течії у вихорокамерному насосі з вимірювальним інструментом різного діаметру і без нього.
Integrated dry granulation – possibility of reducing environmental pollution and valorization of Fe-Ni slag
Authors: Ibrahimi Izet , Deva Nurten , Muqolli Skender
Published: June 2021

Purpose.The aim of our research consists in argumentation of the possibility of transformation of slag from potential pollutants into a new material used and its promotion as an alternative raw material for the production of consumable layers of asphalt concrete for highway. Methodology.The research on the possibility of using the slag of the electric furnace in Ferronickel Foundery is based on the practice of CISRO and Sumitomo Metals Industri in Japan, while the products of this process, in accordance with the standards EN12697-1:2006, EN12697-23, EN12697-12, EN 12697-27 dhe DD226-26/2004, have been used as aggregates for the production of asphalt concrete in the AHN Group-Kosovo. Findings.This paper presents the results from a study program related to minimizing the pollution impact of Fe-Ni slag landfill in Drenas, through valorization and improvement of physical-mechanical properties of slag according to the method of integrated dry granulation and using it afterwards as aggregate for the production of AC11 surf. Originality.Laboratory analyses were conducted in specialized laboratory and data presented are achieved through the use of devices and equipment that are necessary for experimental research, thus the obtained results are original data presented in this paper. Practical value.From the research data it has been proved that the conversion of Fe-Ni slag from wastes with high pollutant potentials into aggregates valuable for industry would express significant economic and environmental effects.
Evaluation of hydraulic power of drilling string with a cavitation hydrovibrator
Authors: Zhulay Yu.O , Nikolayev O.D
Published: June 2021

Purpose. To develop a method for assessing the drill string hydraulic energy based on mathematical modeling of dynamic processes at the drill string with a hydraulic vibrator rock system, taking into account the nonlinear dependence of system dissipative losses on the drill string vibration amplitudes at drill operating modes. Methodology. Methods are based on experimental and theoretical studies on the drill string dynamic parameters and the evaluation of efficiency of converting stationary fluid flow into pulsating flow. Findings. The results are presented in the form of calculated and experimental dependences of pressure, volumetric flow rate, vibration accelerations and hydraulic vibrational power in the section of the rock cutting tool on the criterion parameter of cavitation . Originality. Taking into account the influence of the string elements vibration amplitude on dissipative losses, made it possible to obtain an acceptable agreement with the drilling experimental data as well as: - to determine the peak to peak (from 43.5 to 9.8 kW) and average (from 9.8 to 2.35 kW) values of hydraulic oscillatory power at the cavitation parameter range = 0.120.475; - to evaluate the efficiency of converting the drilling fluid stationary flow power at the inlet to the hydraulic vibrator into the oscillatory power (for the oscillation period) on the rock cutting tool. Within the investigated range of the drilling operation parameter, the maximum calculated value of the efficiency was approximately 76% with the value of the cavitation parameter t equal to 0.16, and the minimum efficiency value was 19% at = 0.475. Practical value. Practical value of the results obtained is that the improved mathematical model of the drill-rock dynamic system allows establishing a rational mode of cavitation hydraulic vibrator operation at the drill string design stage to implement acceptable levels of hydraulic power on the drill bit.
Rigidity effect of the mine geophone mounting on its frequency response
Authors: Shashenko O , Golovko Yu , Klymenko D
Published: June 2021

Purpose. To determine the rigidity effect of the changes in mine geophones mounting on the frequency response of the recorded seismoacoustic signals. Methodology. Operational calculus and frequency analysis are used. Findings. The dependences of the frequency characteristics of geophones under coupling conditions with the rock are studied. A possibility is shown of qualitative change in the recorded signal when changing the rigidity of installation of the case of a geophone; moreover, increase in rigidity can result in both increase and decrease in the amplitude of frequency components in a fixed frequency range. The calculations are performed for the parameters characteristic of the current use of geophones and the most common rocks. Electrodynamic velocimeter and piezoelectric accelerometer were considered separately. Originality. Frequency response changes in the seismoacoustic signal recorded by the geophone can be caused by the changes in the rigidity at the coupling between the geophone and the rock. The ratio of the installation frequency to the natural frequency of the geophone can serve as an indicator of the possible rigidity effect. Numerical values of this indicator are proposed. Practical value. Critical analysis of the obtained seismoacoustic data, taking into account the possible changes in the geophone installation rigidity in the measurement time. The need to determine the frequency of the geophone mounting in their initial mounting and periodic control to this parameter for further operation.
Substantiating the optimal type of mine working fastening based on mathematical modeling of the stress condition of underground structures
Authors: Matayev A.K , Lozynskyi V.H , Musin A , Abdrashev R.M , Kuantay A.S , Kuandykova A.N
Published: June 2021

Purpose. Predicting the formation of a stress-strain state (SSS) in the rock mass within the boundaries of influence of stope operations on the horizon -480 m in axes 2028 at the 10th Anniversary of Kazakhstans Independence (DNK) Mine. Methodology. An engineering-geological data on the host rocks properties are analyzed based on the international ISRM standard. Numerical modelling of the rock mass stress-strain state and the calculation of the load-bearing capacity of the compound support (roof-bolt+shotcrete+mesh) and arch support used at the mine are performed with the help of the RS2 software. This program, based on the Finite Element Method in a two-dimensional formulation, makes it possible to take into account a significant number of factors influencing the rock mass state. Findings. The calculations performed indicate that the support resistance is incommensurably low in comparison with the values of the initial stress field components in the rock mass. In such conditions, it may be more effective to strengthen the mass in the vicinity of mine working than setting more frames or using more massive support profiles. Originality. The paper presents the results of mathematical modeling and calculation of the stress-strain state of the underground supporting aquifer rock mass structures developed for complex mining-and-geological and geomechanical conditions of driving, supporting and operating mine workings on deep horizons of the mines at Donskoy Ore Mining and Processing Plant. Based on the performed research, the preliminary (advanced) strengthening of the border rock mass in the zone of inelastic (destructive) deformations has been substantiated, as a priority method to control the stability of mine workings. Practical value. The research results can be used when creating a geomechanical model of the field and designing stable parameters of mine working support.
Investigation of effect of water content on railway granular supplementary layers
Authors: Fischer S
Published: June 2021

Purpose. To determine the relationship between water content of continuously graded granular supplementary layers for railway substructure and their inner shear resistance and load bearing capacity. Methodology. Four different samples were produced as standard granular products from andesite. Two of them are common base courses for road construction in Hungary, the other two are common railway supplementary layers. The author performed laboratory measurements (multi-level shear box tests) that are adequate for the evaluation of inner shear resistance. The measurements of load bearing capacity and Proctor tests were executed in the laboratory of Colas Hungaria Ltd. The author performed measurements with the optimal water content values of each sample, as well as lower and higher values than them. This can show how the given granular material is sensible to the change of water content. Findings. It was proved that the granular supplementary layers, which are standardized products in road construction (as base courses), also seems to be adequate in railway construction; they are not so sensible to the variation of their water content. It does not mean that the other two granular layers are not adequate for railway substructures, but the application of road products have to be considered as substitute products. Originality. The author tried to emphasize the adequacy of rock mining for construction of ballasted railway tracks, as well as the optimal use of mineral wealth in every country with its results. Practical value. The obtained results of the present paper can be useful in the area of rock mining, and railway infrastructure engineering. During construction procedures the optimal water content values should be taken into considerations for compaction to be able to reach maximal compactness (density), but too high water content has to be avoided, which is based on the results. They can be also considered in the design phase.
Choosing the logistics chain structure for deliveries of bulk loads: case study of the Republic Kazakhstan
Authors: Ramazan B , Mussaliyeva R , Bitileuova Z , Naumov V , Taran I
Published: June 2021

Purpose. The paper aims to develop the methodology for choosing the best available structure of a logistics chain for deliveries of bulk cargoes. Methodology. The systematic approach is used to formalize the problem of choosing the optimal structure of a logistics chain: the total expenses are used to define the goal function, alternative logistics chain structures and numeric parameters of the request flow (the delivery distance and the consignment weight) are defined as control variables, and the random variables representing technological parameters of servicing processes are used to consider the influence of the environment on the logistics chain. The mathematical model defines the functional dependence of the total expenses on the entities within the delivery chain on the request flow parameters for two alternative structures: the delivery with transshipment in one freight terminal and the delivery through two terminals. By using functional analysis, we define the ranges of the request flow parameters where the use of a given logistics chain structure is characterized by minimal total expenses. Findings. The experimental studies conducted considering two alternative logistics chain structures have shown that the better solution varies depending on the values of the request parameters. It allowed us to state that the ranges of the numeric parameters of the request flow may be defined to substantiate the optimal logistics chain structure for deliveries of bulk loads. Originality. The dependencies of the total logistics expenses on the delivery distance and the consignment weight as the parameters of the flow of requests for bulk cargo transportation have been defined in the paper for the first time. Practical value. The proposed methodological approach can be used by freight forwarders to substantiate the best option out of available alternative structures of a logistics chain for deliveries of loads with the given delivery distance and the consignment weight.
An integrated method for evaluating the quality of education and university performance
Authors: Artyukhov A.Ye , Vasylieva T.A , Lyeonov S.V
Published: June 2021

Purpose. To create an integrated methodology for assessing educational and scientific activities of higher education institutions (HEI) following the recommendations of international ranking agencies and specific indicators that consider the institutions position at the national level. Methodology. The combined method of evaluation of the HEI activity is applied. Some evaluation indicators are inherent in the HEI (in whole or in part). Others have a specific numerical value. The calculation of the final ranking indicator is based on comparing universities according to the indicators from the methodology (ranking positions in the world educational and scientific space, education quality indicators, financial indicators, and quality of scientific activity) with the reference university, which has the best result for each indicator. Findings. An integrated methodology algorithm for assessing the educational and scientific activities of the HEI is presented and recommendations are given for the use of each of the indicators depending on the peculiarities of the ranking (for example, general ranking or ranking by direction). Originality. An integrated method of external evaluation of educational and scientific activities is proposed, considering both well-known indicators of world ranking agencies and specific (different from world ranking indicators) indicators for assessing universities activities at the national level. Practical value. The method allows determining some economic indicators of the dynamics (positive or negative) of university development and finding bottlenecks in the implementation of specific activities in the institutions educational and scientific activities. The methodology considers the actual educational activities (training of higher education institutions at all levels). It also allows us to assess the success of free economics in implementing scientific activities as a significant factor in creating new knowledge and improving educational services quality.
Accounting as an integral part of financial and economic ­assessment of business entities
Authors: Kryshtal H , Bodretskyi M , Koval M , Skyba H , Kozlova A
Published: June 2021

Purpose. To determine the impact of accounting for the activities of economic entities on the general state of financial and economic activities of mining enterprises on the basis of the statistical method of analysis. Methodology. The theoretical and methodological basis of this study includes scientific works by national and foreign scientists in terms of formation of the accounting system of enterprises (economic entities), legislative and regulatory documents which regulate accounting. The study used a set of general and special methods of cognition: content analysis, logical generalization, quantitative and qualitative comparison, scientific abstraction and systematization. Findings. It is established that in the conditions of the growing national economy there occurs dynamic strengthening of the influence of science and R&D on the socio-economic development of the country. It is proposed to consider accounting as a component of financial and economic evaluation of business entities. The financial analysis of activities of 40 leaders of the mining industry market of the world is provided. Originality. The study analyzed the financial and economic condition of economic entities and provided recommendations in terms of management and accounting. In contrast to the existing ones, these recommendations are as follows: formation, composition, powers and procedure of enterprise committees; the role of the works council in ensuring the effective functioning of the internal control system at the enterprise; implementation of an effective remuneration policy; disclosure of corporate management information by enterprises. It has been proven that the mining industry, along with the oil and gas industry, distributes more of its revenues to the state than any other sector of the economy. This is due to the fact that in addition to direct and indirect taxes, mining companies pay significant amounts of royalties in the form of resource rents for non-renewable resources. Practical value. The results of the study can be used by practitioners, scientists, civil servants (the Ministry of Education and Science of Ukraine and its structural units, local governments in the field of education and science) to monitor economic development and improve state regulatory impact on economic entities.
Conceptual principles of learning organization building
Authors: Ostrovska H.Yo , Sherstiuk R.P , Tsikh H.V , Demianyshyn V.H , Danyliuk-Chernykh I.M
Published: June 2021

Purpose. Methodological and applied principles deepening, recommendations projecting due to learning organizations building, in order to obtain fundamentally new competitive advantages in a knowledge-based economy. Methodology. The development of theoretical and methodological foundations of learning organizations building should be carried out on the basis of provisions synthesis of neural networks theory and the latest management paradigm with a projection on staff development; theories of personality and its development in activity; sociology, motivation, theory of organization and competitive advantage, chaos theory and synergetic. Findings. Priorities of learning organizations building in a knowledge-based economy is developed is defined. The own vision of learning organization building conceptual bases as a fundamental component of competitiveness management system on the bases of innovative development is formulated. A new understanding of learning organization category essence is proposed. Learning organizations formation principles, which are based on the latest enterprise management paradigm are improved. The study actualizes the value of educational and human capital, as well as proves their impact upon the socio-economic development of the organization. Emphasis is placed at the fact that the activities of learning organization are based on the culture, system and skills of learning. It is proved that the transformation of domestic enterprises into learning organizations will avoid many problems of the nonlinear world picture and accelerate the processes of effective management at each enterprise. Originality. The work develops the conceptual principles of learning organization building, the representation of which is reproduced according to the original conceptual-analytical model in distinguishing its architecture on the basis of innovative development. The model of learning organization is presented, the novelty of which is to systematize and clarify the requirements for the basic elements of the organization and to reflect the relationships between them. The mechanism of creation and use of knowledge of the learning organization is developed. It will increase its competitiveness from the standpoint of strategic approach and expand competitive positions in the market. Practical value. The practical use of scientific developments and recommendations of the authors allows to increase the innovation and efficiency of the national innovation system structure-producing organizations.
SEISMOACOUSTIC SIGNALS PROCESSING FOR EXTENDING
OF THE INFORMATIVITY OF FIBER-OPTICAL SENSITIVE ELEMENTS
Authors: Denisov I. V. , Sonin A. E.
Published: June 2021

The principles of recording and processing of the combination of seismic and acoustic signals from single intruder by means of the underground fiber-optical sensing element are given in this article. It shows distinctive informative features of the signals. They complement known features in terms of acoustic component. The novelty of the work is combining the processing of seismic and acoustic signals. The interferometric fiber-optical measuring network is used as distributed fiber-optical seismic acoustic sensitive element.
Remembering the stars of the passing era…
Authors: Doberstein S. A.
Published: June 2021

Remembering the stars of the passing era…
ABOUT THE FEATURES OF CALCULATING
THE NEAR ELECTRIC FIELD ESTABLISHED
BY THE TRANSMITTING VLF, LF TRAILING WIRE ANTENNA
ON THE ENGINE POD OF TUG AIRCRAFT
Authors: Mitrofanova T. V.
Published: June 2021

The near electric field established by the transmitting VLF, LF trailing wire antenna on the engine pod of the tug aircraft is calculated by the Pocklington’s integral equation method. Here are considered the features of solving the problem related to the small electric lengths of the aircraft and pod.
SYNCHRONIZATION OF THE OFDM MODEM WITH THE ANTENNA ARRAY IN HIGH-POWER INTERFERENCE CONDITIONS
Authors: Saltykov O. V. , Kalinin A. N.
Published: June 2021

The article proposes a method of time-frequency synchronization of an OFDM mo-dem, the input of which receives signals from the elements of the antenna array. The method is based on the combined action of correlation procedures for entering into communication and spatial selection, which clears the signal from interference based on the criterion of the minimum difference between the received signal and the test combination.
FREQUENCY TRIMMING OF THE STW RESONATORS
WITH WORKING FREQUENCY UP TO 1 GHZ
Authors: Kuznetsov A. N. , Doberstein S. A. , Veremeev I. V.
Published: June 2021

This paper presents the data for frequency trimming of the single port STW resona-tors in a frequency range of 500–1000 MHz by plasma chemical etching method. The main parameters of resonators after frequency trimming are given: frequency tolerance <±100·10–6, quality factor of 8600–9500, equivalent elements needed for use of the STW resonators.
Factors Related to Stroke: A Hospital Based Study
Authors: Hossain Mohammad Murad , Hafiz Sardar Mohammad , Hasan ATM Hasibul , Bari Mohammad Anwarul , Haque Mirza Manjurul
Published: June 2021

To determine the distribution of common medical conditions related to stroke among Bangladeshi patients. This is an observational study. It involved 336 stroke patients from different medicine wards in Dhaka Medical College Hospital from July 2012 to June 2013. We assessed some common established medical conditions observed among stroke patients e.g. age, sex, family history, hypertension, diabetes, ischemic heart disease, smoking, obesity, dyslipidaemia, alcoholism, use of oral contraceptive pill, etc. A predesigned check list was used for data collection. Among 336 patients, most of the stroke events occurred after the age of forty (82.3%) and the ischemic stroke (72%) being the most common. Other than the non-modifiable risk factors (advancing age, sex, Family history of stroke) hypertension was the most common factor found in relation to stroke patients (57.6%) followed by smoking (44.6%), tobacco use (24.3%), OCP use in female (40% of female stroke), diabetes (23%), ischemic heart disease (17.1%), obesity (10.6%) and dyslipidaemia (5.3%). Stroke is common after the age of forty. Ischemic events are the commonest type of stroke. Hypertension, smoking, diabetes, tobacco use, and ischemic heart disease were five most principal conditions associated with stroke.

CBMJ 2015 July: Vol. 04 No. 02 P: 13-19
Hernia After Blunt Trauma Abdomen- A Case Report
Authors: Riyad Mahamud
Published: June 2021

Traumatic abdominal wall hernia is a rare condition that can follow any blunt trauma. Associated intra-abdominal injuries are infrequent. In this case report, a middle aged man diagnosed as abdominal wall hernia following fall from height, surprisingly without any other injury. Aim of this report is to augment the knowledge of traumatic abdominal wall hernia, its diagnosis and proper treatment.

CBMJ 2015 July: Vol. 04 No. 02 P: 58-61
Placenta Percreta in First Trimester Pregnancy: A Case Report and Review of Literature
Authors: Chowdhury Ferdousi , Ferdousi Shamima , Beg Ayesha , Islam Md Aminul
Published: June 2021

Placenta percreta is a rare condition and extremely rare in first trimester of pregnancy. It is a life threatening obstetric condition specially in undiagnosed cases. Here we report a case of 32 years 5th gravid woman having history of previous one caesarian section(C/S) and two dilatation and curettage (D&C), who presented to us with life threatening vaginal bleeding during the attempt of curettage of 12 weeks missed pregnancy. Along with resuscitation emergency hysterectomy was done. Placenta was found in lower segment of uterus invading up to serous coat. Histopathology also confirmed placenta percreta. She received 6 units of blood. She was discharged from hospital after 7 days in good health.

CBMJ 2016 January: Vol. 05 No. 01 P: 46-49