bluuebunny/crossref_metadata_2025_split huggingface dataset:
Methodology of dynamic factor influence of services on security subsystems that ensure comprehensive security of enterprises
Authors: Gvozdev E. V. 
Published: July 2021

Introduction. In the structure of management of industrial enterprises, it is necessary to create an integrated safety and security system, which has already become traditional and includes sectoral areas (industrial and fi re safety, labor safety, environmental and information security, anti-terrorism security of the facility). The statistics confi rm the facts that the major part of determined hazards is caused by the human factor, including shortcomings (gaps) in the fi eld of impact of personnel of industrial and fi re safety services, labor safety, information security and anti-terrorism security, environmental security (hereinafter – services) on the supervised safety subsystems. To solve this problem, a methodological basis is presented in obtaining indicators of the infl uence (impact) of each of the services, that allows to reveal vulnerabilities in management of considered integrated safety and security system.Methods of research. Approaches using existing methods in integrated safety and security of the enterprises are analyzed, and the features of their application are considered. At the stage of analytical research, it is proposed to apply the method of direct determined factor analysis, which makes it possible to specify the indicators of factor infl uence, divide them into components. At the stage of synthesizing the obtained analytical results, it is offered to apply the method of the objective tree on the basis of inverse calculations allowing to receive coeffi - cients of increment (decrease) of gaps (erroneous actions) of service personnel arising in the dynamic process of their employment relations.Problem statement. The statistical data of fi res at the enterprises of electric power industry of the Russian Federation were processed. The coeffi cients of characteristic infl uence (direct, indirect) were determined. It was necessary to solve the problem with dynamic presentation of service performance indicators (by years) to identify those areas that require the formation of management instructions by the head of the enterprise.Problem solution. The example of inverse problem solution based on the construction of the objective tree, which is characterized by ease of use, visibility, dynamism, universality and uniformity is presented.Conclusion. The results obtained can be integrated as an embedding into an expert or intelligent management system created at the enterprise (for example SAP).
Fire safety of hydrogen filling stations
Authors: Shebeko Yu. N. 
Published: July 2021

Introduction. The problem of greenhouse gas emissions from hydrocarbon-powered vehicles, polluting the air, makes consumption of hydrogen as an alternative motor fuel particularly relevant. Solutions to this problem are provided in a number of works written by foreign researchers. This article contains the analysis of these works in respect of fi re and explosion safety assurance at gaseous and liquid hydrogen filling stations (hydrogen fi lling stations).Features of hydrogen storage. Motor fuel storage is a main problem of hydrogen filling stations and their operation. Most advanced hydrogen storage methods (applicable to gaseous, liquid and adsorbed hydrogen, as well as metal hydrides that contain hydrogen) are analyzed in the work.Compressed hydrogen filling stations. Fire and explosion safety features of filling stations, where compressed hydrogen is stored, are considered by the author. As a rule, mobile fuel trucks, equipped with compressed gas tanks, are used there.Liquid hydrogen filling stations. Fire safety aspects of filling stations, where liquid hydrogen is stored, regasifi cation is performed, and vehicles are fi lled with compressed gas, are also analyzed.Hydrogen formation at filling stations. One of the ways to supply fuel to a hydrogen filling station is to produce it on site using dehydrogenation of methylcyclohexane, which is delivered in tank trucks. Hydrogen is compressed and stored in cylinders. Fire hazards arising at such stations are analyzed.Main provisions of NFPA 2 in terms of hydrogen filling stations. The requirements of the international standard NFPA 2 Hydrogen Technologies Code. 2016 Edition, that apply to compressed and liquefi ed hydrogen filling stations, are considered.Conclusions. The author has made a conclusion that hydrogen fi lling stations are intensively built in several countries. It has been proven that if necessary protective measures are taken, hydrogen fi lling stations can be as safe as those using hydrocarbon fuel. It is necessary to develop a domestic regulatory document containing fi re safety requirements applicable to hydrogen fi lling stations with account taken of the international experience.
Assessment of operation of safety channel signal cables at nuclear power plants under fire conditions
Authors: Lebedchenko O. S. , Zykov V. I. , Puzach S. V. 
Published: July 2021

Introduction. Signal cables of safety systems, installed at nuclear power plants (NPPs), retain the ability to conduct modulated signals during the time period needed to switch the reactor facility to a safe mode. However, the ability of signal cables to transmit signals correctly in the high temperature gas medium, which is typical for the early stage of a room fi re, has not been exposed to research.Aims and objectives. The co-authors offer a theoretical assessment of the ability of NPP safety system cables to correctly transmit modulated electric signals if exposed to fi re and current loads. The theoretical research into the temperature of the conductor of a signal cable at the initial stage of fi re has been performed towards this end.Theoretical background. The steady state heat conduction equation, describing heat transmission from the cable core to the environment through the cylinder-shaped insulation layer, is used to measure the temperature of the cable strand.Results and discussion. Temperature dependences describing the relation between the temperature of the conductor of a single - strand and single-wire cable KNEPng(А)-HF on the gas medium temperature are obtained. Relations between the temperature of the gas medium in the room on fi re and the current intensity in the electric cable (if the cable is laid vertically) are presented with account taken of the dependence between the specifi c resistance of the wire and the temperature if the maximal permissible operating temperature of cable strands is 70 °С, the maximal permissible operating temperature of cable strands in the overload operation mode is 80 °С, and the maximal cable strand heating temperature is equal to 160 °С when the short-circuit failure occurs. Maximal current intensity values are obtained for various operating modes in the condition of temperatures typical for the initial stage of an indoor fire, they allow to correctly conduct modulated signals within the time period needed to switch the reactor facility to a safe mode.Conclusions. The developed mathematical model and results of numerical experiments allow to assess the infl uence of the temperature in the room of a nuclear power plant in case of fi re on the ability of a signal cable of the safety system to transfer undistorted modulated signals depending on current loads and signal cable laying patterns (whether it is laid vertically or horizontally), and also to expand the range of the room temperature dependence on the current load provided in Electrical Installations Code (EIC).
The efficiency assessment of an automatic sprinkler system
Authors: Tanklevskiy L. T. , Tarantsev A. A. , Zybina O. A. , Babikov I. A. 
Published: July 2021

Introduction. Сases of ineffective activation of automatic sprinkler fire-fighting systems (AFFS), designed pursuant to current standards, have made it necessary to address the following three issues: a) identification of reasons for ineffective activation; b) examination of AFFS systems to ensure their successful activation in case of fire; c) making a list of recommendations for AFFS designers. These issues can be resolved with reference to Appendix B to new SP (Construction Regulations) 485.13130.2020.Maximal critical height of sprinkler placement. Models of fire development were used to design the roof height limit and the AFFS bulb heating time. If the ceiling height exceeds the limit value, sprinklers cannot be activated in a timely manner. This leads to delays in the AFFS activation, and, as a result, the fire area exceeds the one safeguarded by the sprinkler.Acceptable sprinkler height. The analysis of fire scenarios and bulb heating models allows to more accurately project the feasibility of timely AFFS activation. This, in turn, allows to solve the three above listed problems.Using a differential heat detector to activate sprinklers. If it is established that the use of the AFFS, activating sprinklers by means of thermal destruction of a bulb, is ineffective in a given room, the feasibility of forced AFFS activation using a differential heat detector responding to the temperature rise in a room may be considered. The ratios, thus obtained, are applied to identify the acceptable height of premises protected by the AFFS equipped with such detectors. Problem solutions, including the identification of the reason for the ineffective operation of the AFFS, examination of the AFFS in operation, and provision of recommendations to designers, are demonstrated using the exhibition hall as an example.Conclusions. The above-mentioned problems are resolvable with the help of Appendix B to new Construction Regulations 485.13130.2020 and the above models.
The assessment of extinction mechanisms involving water mist applied to combustible liquids
Authors: Korolchenko D. A. , Puzach S. V. 
Published: July 2021

Introduction. A number of problems accompany the development of new extinction methods applicable on the premises of buildings and structures and the use of advanced fire extinguishing agents. Subject-specific studies are needed to solve these problems. They include the identification of general principles of fire extinguishing efficiency and further development of the optimal mode of application of firefighting agents. The purpose of this work is the theoretical assessment of fire extinction mechanisms involving the water mist applied to combustible liquids. The objectives to be accomplished include the equations based on the mass/energy conservation laws and derived for flame zones with account taken of the water mist applied; the assessment of the water flow rate for different combustion mechanisms; comparison of assessment results with experimental data obtained in the process of extinguishing model fire seats that have burning combustible fluids.Methods of analysis. The calculations involve the equations based on the mass/energy conservation laws and derived for flame zones above the surface of combustibles.Research results. The author analyzes two fire extinguishing mechanisms that contribute to the suppression of burning in the flame zone: 1) the attainment of the value of mass concentration of water vapour that reaches the lower concentration limit of combustion of the combustible mixed gas (oxygen reduction); 2) cooling combustible mixed gas in the flame zone by evaporating water until the flash point temperature of combustible vapour is reached.Conclusions: Equations based on mass/energy conservation laws were derived for flame zones, formed in the course of combustion of flammable liquids, with account taken of a jet of water mist. Water flow rates needed for the implementation of various extinguishing mechanisms were analyzed using the proposed equations. Theoretical results were compared with the experimental data obtained in the process of using water mist to extinguish model fire seats that contain combustible fluids.
Lipoxygenase activity and antioxidant capacity in pepper (Capsicum annum) exposed to high concentration of copper sulphate
Authors: Koç Esra , Karayiğit Belgizar 
Published: July 2021

Excess Cu causes negative effects on plant growth and development by affecting important physiological processes in plants. In this study, the effect of high concentration of copper sulphate (CuSO4) on lipoxygenase (LOX) activity, lipid peroxidation and antioxidant activity in pepper was investigated. The highest amount of LOX activity increase and lipid peroxidation in pepper seedlings’ leaves exposed to CuSO4 was detected 24 h following the application. An early antioxidant response to CuSO4 application occurred, and the highest 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity was detected 3 h after the application and the highest reducing power after 12 h. The increase in malondialdehyde of leaf samples taken 1.5 h and 3 h after the application, along with the increase in LOX activity, reducing power and DPPH scavenging activity (%), showed that CuSO4 stimulates the defence system in a short time. The increased lipid peroxidation, despite generally decreased DPPH fragmentation activity and reducing power in samples taken after 6 h showed that 0.5 M CuSO4 caused high oxidative stress. This result revealed that high CuSO4 concentrations may also disturb the non-enzymatic antioxidant capacity.
The Ethics Interview: Can a Single Interview Exercise Help Students Experience the Benefits of Professional Engagement?
Authors: Killian Larita J. , Monje-Cueto Fabiola , Huber Marsha M. , Brandon Christopher 
Published: July 2021

ABSTRACT
Professional engagement helps students develop professional judgment, connect their coursework to the “real world,” and explore accounting-related careers. Internships often provide a route to these benefits, but some students cannot complete internships. The Pathways Commission calls for new, creative approaches to professional engagement. In the ethics interview exercise, students engage with professionals for a single interview. Following the intentional learning model, students complete activities before and after the interview. They select the interviewee, prepare questions about ethics and topics of personal interest, organize and conduct the interview, and reflect on the experience. We implemented the exercise in different accounting courses at universities in the United States and Bolivia, using both face-to-face and virtual interviews. We applied principles of phenomenology for assessment. Results indicate the exercise helps students experience the benefits of professional engagement. The exercise requires little modification to existing courses and can be modified to support varied learning goals.
The offer of corporate social responsibility and business ethics courses in university accounting undergraduate programs: A comparative analysis among administrative sciences
Authors: Buele Nugra Irene , Pesantez Andrea 
Published: July 2021

Business failures in the 1980s, in the United States, have prompted the undergraduate programs of Business Administration, Public Administration, Foreign Trade, Accounting and Auditing, Economics, Finance, Management and Leadership, Human Talent Management, Transportation Management, Business Management, Marketing, International Business and Tourism to strengthen the techniques and processes of education of the future professionals, based on the teaching of social responsibility and ethics. Hence, the main purpose of this research is to analyze the presence of subjects related to Business Ethics and Corporate Social Responsibility (CSR) at Universities and Polytechnic Schools that are within the National Public and Private classification, and which receive allocations and revenues from the State in Ecuador. For this purpose, null hypotheses (Ho) and alternative hypotheses (H1) have been proposed, obtaining significant statistical evidence in the analysis of 89 curricula of administrative science programs. The analysis shows that the offer of the 47 studied subjects of social responsibility, and 75 of ethics does not depend on whether the university is public or private to receive allocations and revenues from the State, but it does depend on the type of program or degree that is being offered. These higher education subjects are important to help, the future professional, remember his or her correct behavior, commitment, and actions in the company, in society, and in the environment.
THE IMPACT OF COVID-19 PANDEMIC ON THE ECONOMIC ACTIVITY OF PURSE SEINE FISHERMAN IN BANABUNGI VILLAGE, KADATUA DISTRICT, SOUTH BUTON REGENCY
Authors: Sidiq Azwar , Annaastasia Nurhuda , Sarifin Abdul , Yusnita Yusnita 
Published: July 2021

Fisherman are a group of people who are highly dependent on the fisheries resources in their efforts to fulfill their basic needs and to be a prosper. The outbreak of the Covid-19 not only threatens people’s lives and safety, but also has a significant impact on economic development both of which are macro and micro to be weakened. This research aims to determine the impacts of the Covid-19 Pandemic on Fishing activities, incomes, and marketing activities of purse seiner. The research was conducted on October 2020 in the Banabungi Village, Kadatua Subdistrict, South Buton Regency, Southeast Sulawesi Province. The results show that the impact of the Covid-19 has affected purse seiner’s fishing activities where production costs have increased by 4,62%, The of crews (ABK) have increased by 19,69%, and marketing at channel I (Producer-Wholesale)stopped. Consequently, where the change in fish price at fishemen level by 79,75%. The margin of marketing at channel II at wholesale level is IDR 5.556/kg. Meanwhile, at retail level is IDR 8.267/kg. Production was decreased by 79,93%, revenue decreased by 64,06% and profit decreased by 68,26% with value of R/C ratio 3.70 >1. The fishing location of fishermen has not change as in the previous year. Marketing volume during the peak fishing season is 14.809kg/month.
PENGEMBANGAN MEDIA PEMBELAJARAN PASSING SEPAKBOLA (BACK PASSER) DI SEKOLAH MENENGAH ATAS
Authors: Rapandy Bobby , Aufan Rifqi 
Published: July 2021

Penelitian ini bertujuan untuk untuk menghasilkan sebuah media pembelajaran passing dalam permainan sepakbola mata pelajaran pendidikan jasmani, olahraga dan kesehatan. Sehingga dapat dimanfaatkan sebagai alat modifikasi pembelajaran disekolah khususnya di SMA Negeri 2 Lubuk Pakam. Populasi dalam penelitian ini adalah 30 siswa sekolah menengah atas (SMA). Penelitian ini merupakan penelitian pengembangan media pembelajaran sepakbola (back passer) di SMA. Metode yang digunakan adalah metode penelitian pengembangan (Research and Development). Adapun media yang dikembangkan divalidasi oleh 2 orang ahli yang terdiri dari 1 ahli materi dan 1 ahli media/alat. Adapun hasil validitas ahli materi terhadap alat yang dikembangkan sebesar 91,6% dan persentase penilaian dari ahli media/alat terhadap alat yang dikembangkan sebesar 88,2%. Hasil uji coba skala kecil melibatkan 10 siswa menunjukkan bahwa media pembelajaran passing sepakbola (back passer) memenuhi kriteria untuk dilanjutkan dalam uji coba skala besar karena persentase skor dari setiap aspek sebesar 72% dengan kategori layak. Hasil Uji coba skala besar terhadap 20 siswa bahwa media pembelajaran passing sepakbola (back passer) sudah memenuhi kriteria untuk melanjutkan dalam pembuatan produk massal karena persentase dari setiap aspek sebesar 84,7% dengan kategori sangat layak. Dapat disimpulkan bahwa media pembelajaran passing sepakbola (back passer) ini dapat digunakan sebagai media belajar passing sepakbola agar pembelajaran lebih efektif dan efisien.
Is There A Way to Prevent Aging? A Study Using Metformin in Blood Sugar Levels and Serum Levels of IGF-1
Authors: Gama Arlina Wiyata , Santoso Arief , Yustisia Ika , Taslim Nurpudji Astuti , Idris Irfan , Wahid Isra 
Published: July 2021

Aging is influenced by lifestyle, which one is by consuming excessive calories. In recent years there have been many studies on aging and age-related diseases, calorie restriction mimetic is one of them. Metformin is a calorie restriction mimetic that is attractive to gerontologists. This research analyzed the effect of metformin as a calorie restriction mimetic on fasting blood glucose and IGF-1 serum levels in old white male Wistar rats. This study conducted with an experimental study with a pre and post-test pattern with controlled group design on male rats (Rattus novergicus) Wistar strain which was divided into 3 groups, control group (K), the calorie restriction group (P1), and the metformin group (P2), 6 rats each group. Blood glucose levels were measured by a glucometer and serum IGF-1 levels were measured with an ELISA kit, where blood samples were taken from the tail of the rats. In general, the provision of metformin and calorie restriction tended to reduce blood glucose levels, but increased serum IGF-1 levels. There is a significant relationship between blood glucose levels and serum IGF-1 levels. It’s necessary to conduct further research to determine the effective dose and maximum dose of metformin to reduce blood glucose level and serum IG-1 levels which can be slow down the aging process.
A Benchmark Generalization of Fuzzy Soft Ideals in Ordered Semigroups
Authors: Khan Faiz Muhammad , Leoreanu-Fotea Violeta , Saifullah  , Amanullah  
Published: July 2021

Abstract
In real life, variability and inaccuracy are always presentand must be calculated by either possibilistic, probabilistic, polymorphic or other uncertainty approach. This benchmark study is about to construct new types of fuzzy soft ideals i.e., (∈, ∈ ∨qk
)-FSR(L)Is of ordered semigroup(OSG). Based on this inception, fuzzy soft level subsets are defined which link ordinary ideals with (∈, ∈ ∨qk
)-fuzzy soft left(right) ideals. Some binary operations like ◦
λ
, intersection ∩
λ
and union of fuzzy soft sets ∪
λ
are given and various fundamental results of ideal theory are developed through these types of fuzzy soft ideals.
On weakly S-prime ideals of commutative rings
Authors: Almahdi Fuad Ali Ahmed , Bouba El Mehdi , Tamekkante Mohammed 
Published: July 2021

Abstract
Let R be a commutative ring with identity and S be a multiplicative subset of R. In this paper, we introduce the concept of weakly S-prime ideals which is a generalization of weakly prime ideals. Let P be an ideal of R disjoint with S. We say that P is a weakly S-prime ideal of R if there exists an s ∈ S such that, for all a, b ∈ R, if 0 ≠ ab ∈ P, then sa ∈ P or sb ∈ P. We show that weakly S-prime ideals have many analog properties to these of weakly prime ideals. We also use this new class of ideals to characterize S-Noetherian rings and S-principal ideal rings.
Sums and products of intervals in ordered semigroups
Authors: Glavosits T. , Karácsony Zs. 
Published: July 2021

Abstract
We show a simple example for ordered semigroup 𝕊 = 𝕊 (+,⩽) that 𝕊 ⊆ℝ (ℝ denotes the real line) and ]a, b[ + ]c, d[ = ]a + c, b + d[ for all a, b, c, d ∈ 𝕊 such that a < b and c < d, but the intervals are no translation invariant, that is, the equation c +]a, b[ = ]c + a, c + b[ is not always fulfilled for all elements a, b, c ∈ 𝕊 such that a < b.
The multiplicative version of the above example is shown too.
The product of open intervals in the ordered ring of all integers (denoted by ℤ) is also investigated. Let Ix
:= {1, 2, . . ., x} for all x ∈ ℤ+ and defined the function g : ℤ+ → ℤ+ by

g

(
x
)

:
=
max

{

y
∈

ℤ

+

|

I

y

⊆

I

x

⋅

I

x

}

g\left( x \right): = \max \left\{ {y \in {\mathbb{Z}_ + }|{I_y} \subseteq {I_x} \cdot {I_x}} \right\}

for all x ∈ ℤ+. We give the function g implicitly using the famous Theorem of Chebishev.
Finally, we formulate some questions concerning the above topics.