bluuebunny/crossref_metadata_2025 huggingface dataset:
A modified cell-to-cell simulation model to determine the minimum miscibility pressure in tight/shale formations
Authors: Sun Hao , Li Huazhou
Published: June 2021

A new oil–gas Minimum Miscibility Pressure (MMP) calculation algorithm is developed in this work based on the classic cell-to-cell simulation model. The proposed algorithm couples the effects of capillary pressure and confinement in the original cell-to-cell simulation model to predict the oil–gas MMPs in a confined space. Given that the original cell-to-cell algorithm relies on the volume predictions of the reservoir fluids in each cell, a volume-translated Peng-Robinson Equation of State (PR-EOS) is applied in this work for improved accuracy on volume calculations of the reservoir fluids. The robustness of the proposed algorithm is examined by performing the confined MMP calculations for four oil–gas systems. The tie-line length extrapolation method is used to determine the oil–gas MMP in confined space. The oil recovery factor calculated by the proposed MMP calculation algorithm is then used to validate the results. First, to achieve stable modeling results for all four examples, a total cell number of 500 is determined by examining the variations in the oil recovery as a function of cell number. Then, by calculating the oil recovery factor near the MMP region, it is found that the MMP determined by tie-line length method is slightly lower than the inflection point of the oil recovery curve. Through the case studies, the effects of temperature, pore radius, and injection gas impurity on the confined oil–gas MMP calculations are studied in detail. It is found that the oil–gas MMP is reduced in confined space and the degree of this reduction depends on the pore radius. For all the tested pore radii, the confined MMP first increases and then decreases with an increasing temperature. Furthermore, compared to pure carbon dioxide (CO2) injection, the addition of methane (CH4) in the injection gas increases the oil–gas MMP in confined nanopores. Therefore, it is recommended to control the content of CH4in the injection gas in order to achieve a more efficient gas injection design.
Cuidados paliativos na assistência domiciliar: a vivência de uma equipe multidisciplinar
Authors: Nascimento Lucas Cavalcante do , Fonseca Ivana Annely Cortez da
Published: June 2021

Objetivo: Descrever a percepção da equipe multidisciplinar sobre sua vivência nos cuidados paliativos no serviço de atendimento domiciliar. Métodos: Trata-se de uma pesquisa qualitativa, descritiva com questionário autoaplicável com questões abertas. Os dados foram analisados e comparados conforme a literatura pertinente. Resultados: A amostragem ocorreu com 17 profissionais que fazem parte da equipe multidisciplinar em cuidados paliativos, os participantes receberam a sigla S (S1, S2, etc.), no qual se refere aos servidores e foram classificados conforme ordem de respostas do questionário, a partir das respostas apresentadas pelos participantes deste pesquisa, emergiram três grupos temáticos: A Percepção da equipe multidisciplinar frente ao processo de finitude, a equipe multidisciplinar frente às dificuldades na prestação dos cuidados paliativos e, a importância da família na prestação dos cuidados paliativos. Conclusão: Com este estudo os pesquisadores esperam contribuir seja direta ou indiretamente na melhoria do serviço e fazer com que os gestores e os profissionais que fazem parte da equipe possam refletir acerca da sua atuação profissional frente aos pacientes e que possibilitem a criação de estratégias para lidar com o enfrentamento aos pacientes e aos seus sentimentos frente ao processo de finitude.
Phenolic compounds from leaves of Amensiodendron chinese (Sapindaceae)
Authors: Ban Ho Van , Chien Vu Van , Hue Nguyen Thi , Hang Pham Thi , Tuan Nguyen Le , Lien Hoang Nu Thuy , Vuong Nguyen Quoc
Published: June 2021

From the ethyl acetate extract of the leaves of Amensiodendron chinense (Merr.) Hu (Sapindaceae), we isolated three known phenolic compounds: 4-hydroxy-3-methoxybenzaldehyde (1), methyl 3,4-dihydroxybenzoate (2), and 3,4-dihydroxybenzoic acid (3). We elucidated their chemical structures from the spectral data and compared them with those reported in the literature.
VỀ CHỈ SỐ CHÍNH QUY CASTELNUOVO-MUMFORD CỦA VÀNH TỌA ĐỘ CỦA TẬP n + 3 ĐIỂM BÉO KHÔNG SUY BIẾN TRONG KHÔNG GIAN XẠ ẢNH Pn
Authors: Thiện Phan Văn , Sinh Trần Nam , Quang Nguyễn Thanh
Published: June 2021

Trong bài báo này chúng tôi tính chỉ số chính quy Castelnuovo-Mumford của vành tọa độ của tập n + 3 điểm béo không suy biến trong Pn cho hầu hết các trường hợp của tập điểm.
Study on Ability of Elementary School Teacher in Writing Test Items During The Pandemic Time of Covid-19
Authors: Wuryanti Sri , Muhardis NFN
Published: June 2021

The purpose of this study was to obtain information about the ability of elementary school teachers in composing test questions in private universities. This research uses qualitative research, which describes empirical reality using a descriptive approach. This study also uses a literature study, with documents to find some field data that occurs in the form of questions on several subjects. Meanwhile, the descriptive method is finding facts with the right interpretation, namely understanding the concept of the material, the ability to use the rules of the question. Meanwhile, the data analysis used was (1) the subject matter expert's judgment in interpreting some of the item test document findings, (2) theoretically and empirically the item had met the standard question rules. This research was found, during the COVID 19 pandemic, all parents or guardians have a 100% chance of assisting with distance learning as unprecedented. The sample consisted of nine subject teachers and the population was all fourth-grade teachers in primary schools as research subjects. So the assessment also uses offline and online so that it is found, (1) biased test questions, because the linguistic structure of the main sentence and explanatory sentences, is wrong in choosing questions with answers, (2) does not understand the rules about the questions: such as homogeneity of questioners, long and short answers, the use of standard Indonesian. Meanwhile, some of the test questions that were found to have problems were Indonesian, Natural Science, Character, and Boy Scouts. From 12 items, 4 items had material concept errors and 8 items error in the rules.
Teacher’s Perception on Merdeka Belajar Policy
Authors: Prakoso Bagus Hary , Ramdani Zulmi , Rahmah Bilqisthi
Published: June 2021

The urgency of Merdeka Belajar policy is certainly a challenge for teachers to carry out the learning process in schools. This policy makes teachers have to independently find methods and ways of learning that suit the situation in school. This study aims to explore teachers' perceptions regarding Merdeka Belajar policy that will be applied today. A mixed research design was used in this study by involving thematic content analysis to get an overview of teachers' perceptions about the implementation of Merdeka Belajar policy at schools. Then the researcher tested the extent of the teacher's readiness to use a portfolio instrument which was an implementation of Merdeka Belajar. This study involved 30 teachers who received a set of open-ended questionnaires, conducted the FGD process, and filled out a portfolio assessment questionnaire. The results showed that the majority of teachers considered Merdeka Belajar policy to be an effective alternative in providing instruction to students in accordance with the resources owned by the school. However, technically, teachers feel the need to be given structured socialization, clear guidance, and freedom based on the abilities and personalities of teachers in schools. In addition, the percentage of portfolio instruments usage seems to have been widely practiced in learning activities.
The Effect of Global Awareness on Students' Reading Skill Based on Aksi Data
Authors: Susetyo Budi , Rachman Nurul Aulia , Rahmawat NFN
Published: June 2021

The Indonesian Student Competency Assessment (Asesmen Kompetensi Siswa Indonesia-AKSI) is a national survey aims to monitor the quality of education system across provinces. The results of the AKSI are expected to provide inputs on policies to improve the quality of learning outcomes in particular and the quality of education in general. The objective of AKSI is to measure students’ cognitive abilities, which include science, mathematics and reading. In addition, AKSI also collects data through questionnaires, one of which is about Global Awareness. The purpose of this study was to analyze the influence of student gender, parent’s education level, interest studying other cultures, adaptability and communication, understanding of global problems, tolerance, environmental awareness and school quality on students’ reading literacy skill. The data used in this study are data from the 2019 AKSI survey of 15.738 grade IX students and school accreditation of 1.805 junior high schools in Indonesia. The results of parameter estimation and hypothesis testing using the multilevel regression model concluded that gender, father's education, adaptability and communication skills, understanding of global problems, tolerance of religious and cultural differences and school quality affect students’ reading ability.
Use of artificial intelligence in unmanned aerial vehlice industry
Authors:   University of Zilina, Buday Adam , Ažaltovič Viliam
Published: June 2021

The aim of this paper is the analysis of the contemporary state of implementation of artificial intelligence in the area of unmanned aerial vehicles (UAV), and a proposal of further use of artificial intelligence systems in this area in the future. We analyse three essential areas in which artificial intelligence systems are currently being implemented to some extend – path following, object detection and tracking, and anti—collision systems. In each mentioned area we apply different solution methods, technical requirements, but also advantages and disadvantages of those solutions. We present an overview of artificial intelligence as a scientific branch. Finally, we present an overview of how artificial intelligence in the field of UAV could be implemented in the future, based on an analysis of the current state and direction of research and development in the present. We describe the possibilities of use artificial intelligence systems in two areas that are currently receiving the most attention at concept level, namely the flight of autonomous UAV swarms and the improvement of communication and data exchange between individual UAVs using artificial intelligence.
The use of unmanned aerial vehicles in the mountain rescue service
Authors:   University of Zilina, Gánovský Martin , Kandera Branislav
Published: June 2021

The theme of paper is the use of unmanned aerial vehicles in the Mountain rescue service. At the beginning, a brief summary about the history and development of unmanned aerial vehicles is made, starting from the very beginning to their gradual integration into the rescue systems all around the world. This part is followed by an analysis of the currently valid Slovak legislation regulating the rules of flying with unmanned aerial vehicles on the territory of Slovak Republic, which also affects the flight operations of mountain rescuers. Author also included an analysis of the European legislation, which should gradually replace the currently valid Slovak legislation and unify the rules of operation of unmanned aerial vehicles on the territory of the member states. The third chapter describes the use of specific types of unmanned aerial vehicles used by the Mountain rescue service of Slovak Republic and also of other European countries. We focused on the operational advantages and disadvantages compared to other types of aircraft technology used in the mountain rescue systems. The last part consists of an analysis of available equipment used in conjunction with unmanned aerial vehicles during avalanche accidents. Part of the work is also researching the possible extensions of mountain rescue operations by the implementation of modern avalanche beacons attached on the unmanned vehicles. In a research we focused mainly on the possible interference caused by the operation of unmanned aerial vehicle in close vicinity of an avalanche beacon.
New trends in aircraft design
Authors:   University of Zilina, Jabrocká Mária , Bugaj Martin
Published: June 2021

Automation, robotic, unconventional arrangement hydrogen are the hallmarks of new trends in aircraft design. The implementation of hydrogen fuel in aircraft appears to be one of the biggest advances in the near future. Automation in aircraft control is based on the reduction of runway requirements. Among the main conclusions of the paper we include the finding that the aircraft does not have to have a classic conventional arrangement of vertical tail surfaces in order to achieve static/dynamic stability of the aircraft. The complexity of the elements of the aircraft stability and flight control system is directly depended on the weight of the aircraft. Upcoming trends in aircraft design should only based on existing concepts.
Aerodynamic profile drag
Authors:   University of Zilina, Sabo Matej , Bugaj Martin
Published: June 2021

Higher awareness of aviation sustainability and environmental impact creates more research on profile drag reduction. The basic principles of aerodynamic profile drag are described and its role within the total drag. The boundary layer is defined using mathematical and physical principles of fluid dynamics. There are two types of movement inside the boundary layer: laminar and turbulent. In these, their impact on profile drag is analysed. The profile drag of a wing has two sources: form drag and friction drag. Applications with the most impact, throughout history, on both types of drag reductions were reviewed. Because most of the total drag comes from friction, researchers focus more on it compared to form drag. The significant way of reducing friction drag is postponing the transition of laminar flow into turbulent. The control of laminar flow became crucial for reducing friction drag. In the last two decades, European Union supported multiple projects concerning laminar flow control. These advancements in the field are starting to get implemented and tested on new aircraft by manufactures.
International regulation of air freight
Authors:   University of Zilina, Sitarčík Adam , Novák Sedláčková Alena
Published: June 2021

This article is focused on the issue of air freight, its development, importance and current status. The article defines general knowledge in the field of civil cargo air transport as history, current global events, current measures due to the pandemic of the spread of Covid-19 and the division of airlines according to business models. It also includes the periodic development of legislation in the field of air transport freight, global and European legislation, as well as air alliances and organizations in civil aviation. The article deals with contracts in the field of air freight transport such as transport contract and agent contract. Conclusion is focused on the importance of the today's study materials in the field of air freight and also declared that this article and the bachelor thesis could stands out as a supplementary material for the professional public, which will enable them to deepen their knowledge in the field of air freight.
Design of lubrication system, design of motor bed, selecting of propeller for aircraft piston engine
Authors:   University of Zilina, Suk Michal , Čerňan Jozef
Published: June 2021

I will briefly address the three orientations of my paper in this scientific article. I will not go into details in the article. In the first part I will briefly describe the design procedure of a piston engine lubrication system, the requirements that a lubrication system should meet with respect to different types of piston engines and their focus, elements of the lubrication system and the properties of oils as lubricating fluids.In the next part I will describe the types and constructions of aircraft engine beds, technical requirements for aircraft engine beds and individual loads that the aircraft engine bed must withstand. In the last part I will focus on aircraft propellers. I will explain the basic principle of the propeller, the individual rules for selecting a propeller for a piston engine, safety requirements for an aircraft propeller and the dividing of basic types of aircraft propellers for aircraft piston engines.
The backyard of Tlaxcala. An approach to its composition
Authors: María-Ramírez Andrés
Published: June 2021

The backyard is an agroecosystem located near the home and fulf ills several functions and provides various services; in addition, one third of the Rural Production Units in Tlaxcala have this agroecosystem. In the mexican state of Tlaxcala, México, the primary sector is the one that contributes the least to the gross domestic product; it is divided into 60 municipalities and 66% of its territory is used for agricultural, livestock and forestry activities and little is known about this agroecosystem. The objective of the research was to make an approximation of its composition with respect to the plant and animal species found in the backyard. The Registry of Agricultural Producers of the State of Tlaxcala, Mexico, carried out by the National Institute of Statistics and Geography (INEGI) was used; as a member of the work team, a copy of the original database was obtained informally, which consisted of a total of 53 968 basic information cards; of that total, 17 236 reported backyard activities. The information was analyzed using frequency tables of data grouped and sorted into classes for both plant and animal species. Regarding the composition of the main vegetable species produced in the backyard, fruit trees such as peaches and corn stand out. Of the animal species produced, cattle and poultry are the most produced. On average, 91.15% of what is produced in the backyard is for self-consumption; the average area of the backyard was 215 m2. The composition of the Tlaxcala backyard was determined in terms of plant and animal species of certain economic importance; the results reported here can be useful for other research that continues with the characterization of the structure, composition and functioning of the backyard in the state of Tlaxcala.
Erinlik (Ön Ergenlik) Dönemi Korku, Kaygı ve Din İlişkisi Üzerine Bir Araştırma
Authors: BAYNAL Fatma
Published: June 2021

Erinlik dönemi olarak adlandırılan ön ergenlik dönemi, biyolojik ve psikolojik açıdan bireylerin hayatlarında hızlı bir değişim yaşadığı dönemdir. Soyut düşüncenin geliştiği bu dönemde dini olgulara yaklaşımlar da farklılaşmaktadır. Ayrıca bireyin hayata bakış açısı değişmekte; değişen bedenine, sosyal konumuna karşın yeni korku ve kaygılar oluşturmaktadır. Bu çalışmada erinlik döneminde yaşanılan korku ve kaygılar ile din arasındaki ilişkilerin incelenmesi amaçlanmıştır. Çalışmanın amacı doğrultusunda erinlik döneminin genel özellikleri, korku ve kaygılar ile dine karşı yaklaşımlar hakkında literatür çalışması yapılmıştır. Karma desende yapılan araştırmada yapılandırılmış mülakat soruları kullanılmıştır. Nicel veri toplama araçları olarak çocuk anksiyete duyarlılığı, korku tarama ölçeği ile birlikte öznel dindarlık sorusunun da dahil edildiği kişisel bilgi formu oluşturulmuştur. Ankete 10-15 yaş arası 388 kişi katılmış; 17 kişi yaş sınırının dışında olduğu için veri setinden çıkartılmıştır. Mülakata ise 20 erkek 30 kız ve en çok 12-13 yaş arası (%52) bireyler katılmıştır. Ankete 220 kız, 151 erkek olmak üzere yaş ortalaması olarak yine 12-13 aralığında 195 kişi (M=12,49) olduğu tespit edilmiştir. Bu araştırmada, erinlik dönemi bireylerin objelere, imgelere, dini olgulara, toplumsal sorunlara, akademik başarıya ve geleceğe dair korku ve kaygılarının olduğu tespit edilmiştir. Korku ve kaygılarının Covid 19 pandemi süreci veya sınav türleri gibi yaşadıkları döneme göre şekillendiği anlaşılmıştır. Bireylerin korku ve kaygılarına yönelik olarak başa çıkma stilleri geliştirdikleri; bunların arasında dua etme, Allah’a sığınma, güvenme gibi dini içerikli olguların da olduğu görülmüştür. Buna göre bu araştırma sonucunda korku ve kaygının azaltılmasında dinin önemli bir fonksiyon icra ettiği anlaşılmıştır.
Opções Terapêuticas Farmacológicas na Acne vulgar
Authors: Esteves Caseiro Mendes de Freitas Tomás , Cardoso da Cunha Velho Glória Maria
Published: June 2021

A acne vulgar é uma patologia crónica da unidade pilossebácea caracterizada por polimorfismo cutâneo, sendo das mais prevalentes na adolescência. Pode originar sequelas físicas, como cicatrizes desfigurantes, e psicológicas, nomeadamente diminuição da qualidade de vida e função psicossocial. Assim, torna-se fundamental uma estratégia terapêutica eficaz de modo a promover a sua resolução e, simultaneamente, minimizar a presença destas sequelas. Atualmente, os fármacos disponíveis são diversos, obrigando, na sua seleção, à avaliação biopsicossocial do doente. Estudos recentes têm apontado novos agentes terapêuticos promissores, nomeadamente alternativas aos retinóides tópicos, isotretinoína oral, antiandrogénios orais e antibióticos. Estes poderão permitir uma redução da resistência antibiótica e consequente aumento da eficácia com redução substancial dos efeitos adversos. O melhor perfil de segurança e tolerabilidade poderá otimizar a abordagem terapêutica atual.
COMMUNICATIVE MODEL OF SERVICE-ORIENTED CUSTOMS ADMINISTRATION
Authors:   Russian Customs Academy, Boykova M.V.
Published: June 2021

. The article proposes and substantiates a communicative service-oriented model based on synchronization of reproduction cycles of the subjects of customs administration. The reproduction cycle is considered as the basic model of the communication process between the service provider and the service recipient; the process is based on the customs service, which is transformed within the reproduction cycle from a product of customs authorities into a production resource of a participant in FEA.
ANALYSIS OF EXPERIENCE OF LEADING BUSINESS INCUBATORS OF THE REPUBLIC OF KAZAKHSTAN AND PROPOSALS FOR DESIGNING A GENERAL FUNDAMENTAL ORGANIZATIONAL AND ECONOMIC CONCEPT OF FUNCTIONING OF A REGIONAL BUSINESS-INCUBATOR
Authors:   NJSC «Toraighyrov University», Aydashev M.S. , Begentaev M.M. ,   NJSC «Satbayev University», Rakhimova S.A. ,   NJSC «Toraighyrov University», Titkov A.A. ,   NJSC «Toraighyrov University», Kunanbaeva K.B. ,   Financial University under the Government of the Russian Federation
Published: June 2021

In this article, the authors focus on the fact that business incubators play an important role in the development of entrepreneurial education. The article analyzes the leading business incubators of Kazakhstan, highlights the main areas of their work, the functions of business incubators, identifies145 МИРОВАЯ ЭКОНОМИКА И ЗАРУБЕЖНЫЙ ОПЫТ the main systemic and frequent problems. The article formulates proposals for the design of a general fundamental concept of the functioning of a regional business incubator.
A MECHANISM FOR ANALYZING AND EVALUATING THE ACTIVITIES OF CUSTOMS AUTHORITIES USING PERFORMANCE MEASUREMENT TOOLS DEVELOPED BY THE WCO AND OTHER INTERNATIONAL ORGANIZATIONS
Authors:   Russian Customs Academy, Bozhidaeva E.I.
Published: June 2021

This article discusses mechanisms for evaluating the activities of customs authorities using performance measurement instruments and tools developed by the WCO and other international organizations. The article analyzes the existing instruments and identifies the main directions of development in the field of the effectiveness of assessing the activities of customs authorities.
Семантико-стилістичні особливості вигуків у драмі-феєрії Лесі Українки «Лісова Пісня»
Authors: Шуст Людмила
Published: June 2021

У статті проаналізовано інтер’єктиви, використані Лесею Українкою в «Лісовій пісні», визначено їх семантико-стилістичні особливості. Виявлено, що одними з найпродуктивніших є первинні емоційні вигуки, які часто надають емоційного забарвлення всій репліці. Проаналізовано семантику інтр’єктивів, що виконують комунікативно-волюнтативну функцію. Зафіксовано ряд дієслівно-вигукових форм, особливістю яких є відображення миттєвої, короткочасної дії. Звернуто увагу на вигуки мовного етикету, а також вигуки-божіння та вигуки-прокльони.
Мовно-політичний світогляд Лесі Українки (за творами Дмитра Донцова)
Authors: Микитюк Оксана
Published: June 2021

У статті проаналізовано мовно-політичний світогляд Лесі Українки. Доведено, що персономен Леся Українка є стилістично вмотивований та ідеологічно підкріплений націєцентричною ідеологією Д. Донцова. З’ясовано, що програма боротьби, розуміння категорії свій, осутнення біблійних постулатів та ідея ствердження сили духу – усі базові державницькі засади є спільними для творів Лесі Українки та Д. Донцова.
KURUMSAL RAPORLAMANIN GELİŞİMİ: ENTEGRE RAPORLAMA
Authors: KIZILTAN Burçak , UMUT DOĞAN Deniz
Published: June 2021

Finansal raporlar kullanılarak sunulan finansal bilgilerin yetersiz kalmasıyla, mevcut ve potansiyel yatırımcıların istek ve talepleri doğrultusunda finansal tablolarda önemli değişiklikler olmuş, fakat bu değişimler yatırımcıların beklentilerini tam anlamıyla karşılamamıştır. Yatırımcılar finansal bilgiler ile beraber işletmelerin hangi faaliyetleri gerçekleştirerek bu performansı gösterdiklerine ilişkin bilgilere, çevresel, sosyal ve yönetimsel açılardan da işletmelerin kararları, onları uygulama biçimleri ve stratejileri hakkında bilgi sahibi olmayı istemektedirler. Kurumsal yönetim anlayışının yaygınlaşmasıyla, işletmelerin finansal performansının yanında, finansal olmayan performansının da önem kazandığı ve yatırım kararları üzerinde etkili olduğu bir döneme geçilmeye başlanmıştır. İşletmelerin performansının tam ve eksiksiz değerlendirilebilmesi için finansal raporlara ilave olarak finansal olmayan raporlara da gereksinim duyulmaktadır. Bu çalışmada kurumsal raporlama, sürdürülebilirlik ve sürdürülebilir kalkınma terimlerine açıklık getirilip kurumsal sürdürülebilirlik, sürdürülebilirlik raporları ve Küresel Raporlama Girişimi (GRI) vurgulanarak, finansal ve finansal olmayan bilginin yer aldığı yeni bir raporlama türü olan entegre raporlamanın tanımı yapılmış ve kısaca dünya ve Türkiye’deki tarihsel gelişimine yer verilmiştir.
İÇ DENETİM BAKIŞ AÇISIYLA SUİİSTİMAL RİSKİ YÖNETİMİ
Authors: GÖRMEN Murat
Published: June 2021

Suiistimal, sahtekârlık ve yetkiyi kötüye kullanma ile nitelendirilebilecek hukuk dışı fiil olarak tanımlanmaktadır. Suiistimaller şahsi çıkarlarına menfaat sağlamak, sorumluluklardan kaçınmak veya şahsıyla ya da kurumla ilgili haksız bir kazanç elde etmek gayesiyle gerçekleştirilebilir. Araştırma ve inceleme kapsamında suiistimal riskleri yönetimi ACFE raporları temelinde ve iç denetim bakış açısıyla incelenmiştir. Suiistimal nedenleri, kırmızı bayraklar açıklandıktan sonra, suiistimalin önlenmesi için alınabilecek tedbirlere değinilmiştir. Yönetici ve yönetici adayları başta olmak üzere kamu çalışanlarının suiistimal riskleri yönetimini farkındalık seviyesinde bilmelerinin uygun olacağı değerlendirilmektedir. İç denetçiler, suiistimalin önlenmesinde en önemli faydayı iç kontrol sisteminin etkinliğine sağladıkları katkı ile gerçekleştirirler. İç denetçilerin, gerçekleştirdikleri denetimlerde iç kontrol sisteminin değerlendirilmesi ve ihtiyaç duyulan alanlarda kontrol önerilerinin sıralanmasının yanı sıra suiistimal riskleri konusunda da makul ölçüde ve profesyonel bir şüphe ile denetimi gerçekleştirmeleri önemlidir. Bu çerçevede çalışmanın amacı suiistimal riskinin tespitinde iç denetimin önemini irdeleyerek yazına katkı sağlamaktır.
Attenuation Measurement of Ceramic Blocks Wall Using X-Band Waves
Authors: Barros Murilo C. , Duarte Kaue T.N. , Roger Leonardo L.B.
Published: June 2021

Nowadays, many companies depend on good communication between their technologies and Wi-Fi signal, which are part of the X-waves frequencies. Communication may suffer interference due to wave propagation’s difficulty, mainly depending on the number of walls and where the building is located. Therefore, buildings should be adapted to avoid this interference in order to minimize signal losses. Interference in wave propagation depends not only on walls but also on their structure. The studies of building construction and wave propagation may be complementary since the structure and organization may negatively affect the signal strength. This work analyzes X-waves’ attenuation (from 8GHz up to 12 GHz) in ceramic walls to evaluate their effects on wave propagation. This work differs from Literature not only by the material used, considering that there are many jobs involving concrete blocks, but also by calculating the wave signal focusing on a loss function in the analyzed object, enabling anomalous behavior analysis. This propagation behavior allows evaluating the most valuable equipment in a house (wireless device, TV). Finally, ceramic blocks were studied because they have a low cost, they are lightweight, easy to handle, and have a high frequency of use. The tests were performed in an 80cm x 80cm wall. The x-waves were produced by two horn antennas (transmitter and receiver) located at 70 cm of the wall on opposite sides and directions. We found an enhancement of attenuation in the x-waves frequency band with a significant drop at 11GHz. The signal drop mainly occurs due to the material characteristics, a.k.a stop band. This drop is caused by the electromagnetic band structure produced by the difference between the dielectric constant of the ceramic blocks and their periodically repeated voids called Electromagnetic Band Gap structure.
DEMPLOT BUDIDAYA LOBSTER (PANULIRUS HOMARUS) SITEM KERAMBA JARING APUNG DENGAN PAKAN SUPLEMENTASI SPIRULINA PLATENSIS DI KABUPATEN LOMBOK UTARA
Authors: Junaidi Muhammad , Setyono Bagus Dwi Hari , Azhar Fariq
Published: June 2021

Demplot  budidaya dengan pakan suplementasi sprirulina plaensis dilakukan dengan  tujuan untuk meningkatkan  performa pertumbuhan dan kelangsungan hidup lobster yang dipeliharan keramba jaring apung. Metode pelaksanaan pengabdian ni adalah metode transfer teknologi, dengan langkah-langkah yang telah disepakati bersama antara lain sosialisasi kegiatan,   demonstrasi plot (demplot) budidaya lobster dalam keramba jaring apung dan pendampingan. Hasil kegiatan ini  memberikan nilai posisif bagi masyarakat sasaran dan dapat meningkatkan  performa pertumbuhan dan kelangsungan hidup lobster dengan pertumbuhan berat berkisar antara 387,06 – 424,21 %, laju pertumbuhan spesifik erkisar antara 3,12 – 3,36 %/hari dan kelangsungan hidup  berkisar antara 93,33 – 100,00 %. Diharapkan dengan  selesainya  kegiatan  pelaksanaan  pengabdian ini  keberlanjutan  program  terus dilakukan bahkan diperluas, sehingga tujuan dan manfaat program dapat tercapai dan berkontribusi pada peningkatan kualitas hidup dan pendapatan masyarakat
Beneficios potenciales del biocarbón en la productividad de cultivos agrícolas
Authors: Pérez-Cabrera Carlos Alberto , Juarez-Lopez Porfirio , Anzaldo-Hernández José , Alia-Tejacal Irán , Salcedo-Pérez Eduardo , Balois-Morales Rosendo
Published: June 2021

El biocarbón, llamado en inglés biochar, es un material poroso sólido rico en carbono que se obtiene por la conversión termoquímica de la biomasa y de materiales orgánicos de origen agrícola o forestal en un ambiente limitado o carente de oxígeno. En el presente artículo de revisión se plantearon dos objetivos: 1) proporcionar una reseña de las técnicas de producción de biocarbón; y 2) realizar una revisión sobre el efecto del biocarbón en el crecimiento y la productividad de cultivos. Se incluyen las investigaciones de biocarbón en la agricultura realizadas en México, costos de producción, así como las tendencias y perspectivas de investigación. La búsqueda de los artículos científicos del biocarbón en la productividad de cultivos agrícolas publicados en el periodo de enero de 2011 a diciembre de 2020 se realizó a través de las bases de datos Web of Science, Dialnet, Redalyc y Scielo. Esta revisión muestra que en los últimos 10 años existe un incremento de investigaciones en el uso de biocarbón en la agricultura, debido que la mayoría de las investigaciones han reportado efectos positivos en el crecimiento y rendimiento de los cultivos; asimismo, es necesario incrementar investigaciones de biocarbón elaborado con biomasa vegetal y materiales orgánicos de disponibilidad local. La mayoría de los estudios de biocarbón se han realizado en cereales y algunas hortalizas, por lo que es necesario realizar investigaciones del efecto del biocarbón en plantas ornamentales, así como en hierbas aromáticas y en plantas medicinales.
Efecto de la oscilación térmica en la calidad y rendimiento de cebolla blanca en el Valle de Culiacán, Sinaloa
Authors: López Urquídez Guadalupe Alfonso , Cordero Armenta Juan Carlos , Martínez Campos Angel Roberto , Edeza Urias Jorge Alberto , Tirado Ramírez Martín Abraham , López Orona Carlos Alfonso
Published: June 2021

La cebolla es uno de los cultivos alimenticios más importantes a nivel mundial. Sin embargo, la producción de esta hortaliza es condicionada por factores ambientales como la temperatura. El presente trabajo de investigación realizó en el ciclo otoño-invierno 2016-2017 y tuvo como objetivo estudiar el efecto de la temperatura en el contenido de fibra, proteína, cenizas y oBrix en el cultivo de cebolla. Se analizó también la capacidad de este cultivo en la captura de carbono. Con respecto a la oscilación térmica el coeficiente de determinación fue de 0.84; es decir, que esta variable dependiente explica 84% del comportamiento del peso del bulbo. Asimismo, se encontró que la correlación entre el peso y el diámetro de la cebolla fue de 0.943, que 94% del comportamiento de una variable depende de la otra, donde el valor de la pendiente indica que, por cada centímetro de diámetro de la cebolla, esta aumenta 98.6 g en peso. Con respecto al análisis bromatológico no se encontraron diferencias estadísticas significativas. Asimismo, aunque no hubo diferencias estadísticas significativas entre los tratamientos en referencia a la fijación de bióxido de carbono, si se observó una mayor concentración en el tratamiento que fue el que se desarrolló en condiciones de temperatura más bajas, teniendo un valor de 1.56 CO2 (t CO2 eq ha-1).
Nanopartículas de quitosano mejoran la calidad nutracéutica de germinados de triticale
Authors: Ramírez Rodríguez Silvia C. , Ortega Ortiz Hortensia , Fortis Hernández Manuel , Nava Santos Juan M. , Orozco Vidal Jorge A. , Preciado Rangel Pablo
Published: June 2021

El uso de nanopartículas de quitosán (NPs CS) se ha vuelto una alternativa prometedora en la agricultura moderna como un inductor en la biosíntesis de metabolitos secundarios. El objetivo del presente trabajo fue evaluar el efecto de NPs CS en la calidad nutraceútica de germinados de triticale (x Triticosecale Wittmack). Dosis creciente de NPs CS: 0, 0.1, 0.2, 0.4 y 0.8 mg ml-1 se aplicaron una sola vez en la etapa de imbibición, después se dejaron en cajas Petri durante 7 días a 25 ±2 °C de temperatura. Las NPs CS no afectaron la germinación ni el peso freso de la raíz a las concentraciones probadas, y a la concentración de 0.1 mg ml-1 aumentó el peso fresco del brote hasta 83.3%. En presencia de 0.8 mg ml-1 de las NPs CS los compuestos fenólicos disminuyen un 7% y aumentan 29% los flavonoides. Los resultados confirman un efecto promotor de las NPS CS en los germinados, abriendo la posibilidad de ser utilizadas como inductores en la biosíntesis de compuestos bioactivos en germinados de triticale.
Akıllı Yangın Söndürme Mühimmatının Sayısal Analizi
Authors: TOPTAŞ Murat , YILMAZ Mehmet
Published: June 2021

Akıllı yangın söndürme mühimmatı (AYSM) yangınlarla havadan mücadele yöntemlerinde kullanılabilecek, yeni ve etkili bir üründür. Bu ürün NATO üyesi ülkelerin envanterinde bulunan bir harp mühimmatı olan MK-82 (havadan yere genel maksat bombası) tip mühimmatın tasarımına benzer tasarıma sahiptir. Tasarım ölçülerinin var olan bir harp mühimmatına benzemesi onu hava araçları üzerinde herhangi bir iyileştirme veya değiştirme yapmadan doğrudan hava aracına yükleme imkânı vermektedir. Bu çalışmanın amacı, insansız bir hava aracına yüklü mühimmatın, araca ait maksimum hız koşullarında ortaya çıkaracağı sürükleme katsayısının tespitidir. Hava aracının ulaşacağı maksimum hız değerinde AYSM’nin gövdesi üzerinde ortaya çıkacak basınç ve hız profillerinin belirlenerek görselleştirilmesi amaçlanmıştır. Korunum denklemleri farklı türbülans modelleri kullanılarak sonlu elemanlar esasına dayalı olan Ansys Fluent yazılımı yardımıyla çözülmüştür. Bilgisayar ortamında sanal bir rüzgâr tüneli kurulmuş farklı y+ değerleri kullanılarak mühimmata ait ağ optimizasyonu yapılmıştır. Türbülans modelleri olarak SpalartAllmaras (S-A) modeli, standart k-ε modeli ve SST k-ω türbülans modeli kullanılmıştır. Bulunan sonuçlar MK-82 tip genel maksat bombasına ait literatür verileri ile karşılaştırılarak doğrulama yapılmıştır. Kullanılan türbülans modellerinden SST k-ω türbülans modeli en doğru sonucu vermiştir. Bu model kullanılarak maksimum uçuş hızı için mühimmat gövdesi üzerinde meydana gelebilecek basınç ve hız profilleri elde edilmiştir. Bu profiller ileride yapılacak yapısal statik ve dinamik analizleri belirlemek amacıyla kullanılacaktır
Computational study on the molecular interactions of tramadol with selected antioxidant and detoxification enzymes in Drosophila melanogaster
Authors: Olawole Yakubu Adeniran
Published: June 2021

Tramadol is a potent analgesic medication prescribed worldwide for treatment of acute and chronic pains. Its relative tendency to be abused has become a public health concern. This study was designed to evaluate the molecular interactions of tramadol with selected antioxidant and detoxification enzymes of Drosophila melanogaster. The structures of CYP2D6, catalase and defense repressor 1 were retrieved from protein database (PubMed, Swiss model) while tramadol 2D structure was obtained from PubChem repository and prepared using LigPrep scripts as implemented in Small-Molecule Drug Discovery Suite of Schrödinger. 2D structure of tramadol was docked into the protein model binding site using Glide software from Schrodinger. The result revealed that, on the binding pocket of CYP2D6, tramadol and CYP2D6 inhibitor bind the protein pocket via hydrogen bond. The hydroxyl group of tramadol and the inhibitor interacts with the C=O groups of the residues Glu 128 and Lys 264 on the protein pocket respectively. Tramadol binds with higher affinity with a docking score of -4.581 kcal/mol when compared with the inhibitor which gave a docking score of -1.865 kcal/mol. With catalase, tramadol and the crystalized ligands were observed to exhibit hydrogen bonding with Ala 64 residue on the protein binding pocket with docking score of -2.348 kcal/mol and -3.431 kcal/mol respectively. The ability of tramadol to interact with these enzymes, strongly suggests that tramadol treatment may induce oxidative stress and at high dose might result in cellular toxicity. Therefore, the toxic effects of tramadol should be of concern despite the important role it plays in pain management.
Tinjauan Hukum Kriminalisasi Berita Hoax: Menjaga Persatuan vs. Kebebasan Berpendapat
Authors: Devina Cindy Bella , Iswari Dissa Chandra , Goni Go Christian Bryan , Lirungan Devi Kimberly
Published: June 2021

The existence of hoaxes in Indonesia has been around for a long time. However, the term hoax was widespread and became part of daily conversations in the media and the public during the 2014 and 2019 Presidential Election. The rapid development of social media use and the ease of information exchange accelerated the spread of hoax. Even in the COVID-19 pandemic, hoax news about the corona virus and matters related to it are widespread in the community. This hoax news, both during the Election and the Covid-19 Outbreak, caused much unrest in the community. Some of the hoax news spreaders were jailed for violations of the ITE Law. Various legal practitioners and academics have also suggested that hoax news creators and spreaders be criminalized. This article reviews normatively whether the criminalization of hoax news is feasible for reasons of maintaining stability or needs to be eliminated to maintain freedom of opinion. The author reviews the normative aspects of criminalizing the creation and dissemination of hoax news by using Habermas' theory of deliberative democracy. Through this theory, the writer finds that hoax news makes aspects of democracy such as dialogue that is full of awareness and accurate information unattainable. This is also in line with what the Indonesian constitution wants. However, it is necessary to ensure that the criminalization of hoaxes is not used as an instrument of abuse of power considering that the circulation of hoaxes is a symptom of a problem rather than the root of the problem itself.Keywords: Fake News, Criminalization, Stability, Freedom of Speech, Deliberative Democracy, Legal Revuew
Critical Care in Cardiac Surgery Patients with COVID-19: International and Own Experience
Authors: Koltunova G. B. , Avramenko L. M. , Voityuk V. V. , Chyzh K. P.
Published: June 2021

The widespread occurrence of coronavirus disease 2019 (COVID-19) in the world has led to a sharp de-crease in the number of cardiac surgery interventions and had a negative impact on treatment outcomes. We present an overview of the available literature on the effects of COVID-19 on cardiac surgery at this time. The lack of randomized studies and guidelines on the tactics of perioperative management of patients with cardiovascular pathology encourages to rely on isolated clinical cases presented in the literature. The presence of cardiovascular disease in COVID-19 patients has been identified as a risk factor associated with high morbidity and mortality from the first days of the pandemic. In addition to older age, chronic comorbidities increase the risk of severe COVID-19 infection as well as its lethal outcome. Among the predictors of 30-day mortality in COVID-19 patients in the postoperative period the following were under-lined: male sex (p˂0.001), high risk class according to the American Society of Anesthesiologists (ASA) (p˂0.001), age over 70 years (p˂0.001), emergency surgery (p = 0.026), oncological surgery (p = 0.046). To date, there are no studies on the perioperative management of cardiac surgery patients with acquired heart disease with persistent post-COVID-19 lung disease. We present the results of our own experience of perioperative management of a cardiac surgery patient with COVID-associated outpatient bilateral polysegmental pneumonia. Patients with cardiac surgery after COVID-19 required intensive preoperative preparation. Appointment of the proposed scheme of antibacterial therapy in combination with corticosteroids has reduced the intensity of inflammatory changes in lung tissue. Surgical improvement of intracardiac hemodynamics under cardiopulmonary bypass led to complete reduction of lung parenchyma injury and restoration of the respiratory system.

Results. In patients with acquired heart disease, respiratory failure can be caused not only by post-COVID-19 lung injury, but also by impaired intracardiac hemodynamics with increased pulmonary artery pressure due to the initial heart disorders. Restoration of adequate gas exchange function in the group of post-COVID-19 patients is ineffective without timely cardiac surgery.
The Use of Cangrelor in the Treatment of a Patient with COVID-19-Associated Acute Coronary Syndrome
Authors: Salo S. V. , Levchyshyna O. V. , Gavrylyshyn A. Yu. , Logutov A. K. , Hladun A. Yu.
Published: June 2021

In December 2019, an outbreak of pneumonia caused by a novel coronavirus occurred in Wuhan, Hubei province, spreading rapidly first throughout China and subsequently across Europe, the United States (US), and the rest of the world. On January 30, 2020, the World Health Organization (WHO) declared the COVID-19 outbreak a public health emergency of international concern, and on March 12, 2020, it was characterized as a pandemic. Patients exposed to this virus named as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) frequently present with fever, cough, and shortness of breath within 2 to 14 days after exposure, and then usually develop coronavirus disease (COVID-19)-related pneumonia. Although respiratory symptoms prevail among all clinical manifestations of COVID-19, preliminary studies showed that some patients may develop severe cardiovascular (CV) damage.

To date, the COVID-19 pandemic has caused significant changes in the prevalence and pathogenesis of cardiovascular diseases among the population in Ukraine and other countries and has led to a significant increase in mortality in this category of patients. These changes necessitated adjustment of drug treatment in patients with concomitant COVID-19.

Conclusions. COVID-19 is a global pandemic with unpredictable consequences due to mutually reinforcing damage to the respiratory and cardiovascular systems. Treatment of acute coronary syndrome on the background of COVID-19 requires a systematic approach involving physicians of various specialties as well as compliance with anti-epidemic mea- sures. Interventional treatment is quite effective in treating patients with COVID-associated acute coronary syndrome.

COVID-19 patients on mechanical ventilation should use intravenous P2Y12 receptor blockers or drugs that can be crushed and administered through a nasogastric tube. Cangrelor, an intravenous P2Y12 receptor blocker with fast action and high controllability, enabled to achieve the optimal result of the intervention.
Features of Morphogenesis of Aortic Aneurysms on the Background of Hypertension and Associated Risk Factors
Authors: Zakharova V. , Rudenko O. , Kravchenko V.
Published: June 2021

The aim. To investigate the role of hypertension and associated risk factors in the formation of aortic aneurysms.

Material and methods. Retrospective analysis of 196 case histories of patients who were successively operated on for ascending aortic aneurysm at the National Amosov Institute of cardiovascular surgery. The history was analyzed, the duration and degree of hypertension were recorded, as well as other factors that may have influenced the development of ascending aortic aneurysm in some way. A pathomorphological examination of fragments of the aortic wall that were excised during the operation was performed.

Out of all 294 examined patients operated for ascending aortic aneurysm, hypertension was reported in 196 (66.7%) patients. The incidence of ascending aortic aneurysm positively correlated with the duration of hypertension. The ma-jority of patients (118 [60.2%]) had signs of hypertension for more than five years. Additional ethiopathogenetic fac-tors were identified in patients with ascending aortic aneurysm and hypertension, with atherosclerosis ranking first (66 [33.6%]). The next factors that demonstrated the same incidence were the inflammatory process in the aorta and AV, and smoking: 45 cases each (22.9%). Then, in descending order, were: xenobiotics exposure (43 [21.9%]), rheumatic stenosis of AV (40 [20.4%]), chest injury (33 [16.8%]), dysplasia of AV (28 [14.3%]), alcohol abuse (13 [6.6%]), Marfan syndrome (9 [4.6%]), other (8 [4.1%]).

The results of comparison of the history and pathomorphological findings allowed to develop a scheme of ascending aortic aneurysm pathogenesis in hypertension. The scheme of ascending aortic aneurysm pathogenesis in hypertension is discussed in the work. The results of morphological examination show that hypertension is associated with the dam-age to the aortic endothelium, which leads to fibromuscular proliferation of the intima with subsequent hypoxic damage to the inner layer of the media. Hypoxic damage to the media, which is associated with vasa vasorum remodeling due to hypertension, is also observed in the subventricular layer. Weakening of the aortic wall at elevated pressure causes dila-tation of the aorta, i.e. the formation of an aortic aneurysm. This process may be exacerbated by additional factors, with atherosclerosis being the most common (33.6%)