bluuebunny/crossref_metadata_2025_split huggingface dataset:
Notch (stress concentration) factor estimation of a cylinder under internal pressure using different approaches
Authors: Atalay Osman , Toktas Ihsan 
Published: May 2021

Abstract
Today, fluid transportation via pipes can be found in many sectors. Therefore, safe fluid transportation possesses critical importance. While working, transportation pipes are exposed to unwanted loads that culminate in stresses which cause deformation on the part geometry especially in sharp corners, holes or sudden cross-section change areas considered as notched. The notch effect parameter is considered in the mechanical design formulas. This study is interested in the notch factor that is estimated for a cylinder which undergoes an inner pressure. Some users can use false numerical values due to misreading or lack of attention. Because of this reason, graphs were converted to the numerical value by using computer software. In this study, Peterson’s chart was accepted as scientifically valid. Stress concentration factors were obtained by using four other approaches. These are regression, analytical, artificial neural network and finite element analysis. Among these models, high accuracy values were given by the artificial neural network model.
Effect of fiber orientation angle on patch repaired composite plates
Authors: Kaman Mete Onur , Cetisli Fatih 
Published: May 2021

Abstract
Stress intensity factors numerically investigated the Mode I loading of composite plates with an edge crack and repaired with a patch on a single side. The effect of the fiber orientation angle for both composite plate and the patch were analyzed with regard to crack length, adhesive properties, and plate thickness. The stress intensity factors were calculated by using the quarter point element that can be applied to 3D crack problems of homogeneous anisotropic materials.It was observed in this study that the fiber orientation angle affects the stress intensity factors significantly.
Comparison of the arithmetic optimization algorithm, the slime mold optimization algorithm, the marine predators algorithm, the salp swarm algorithm for real-world engineering applications
Authors: Gürses Dildar , Bureerat Sujin , Sait Sadiq M. , Yıldız Ali Rıza 
Published: May 2021

Abstract
This paper focuses on a comparision of recent algorithms such as the arithmetic optimization algorithm, the slime mold optimization algorithm, the marine predators algorithm, and the salp swarm algorithm. The slime mold algorithm (SMA) is a recent optimization algorithm. In order to strengthen its exploitation and exploration abilities, in this paper, a new hybrid slime mold algorithm-simulated annealing algorithm (HSMA-SA) has been applied to structural engineering design problems. As a result of the rules and practices that have become mandatory for fuel emissions by international organizations and governments, there is increasing interest in the design of vehicles with minimized fuel emissions. Many scientific studies have been conducted on the use of metaheuristic methods for the optimum design of vehicle components, especially for reducing vehicle weight. With the inspiration obtained from the above-mentioned methods, the HSMA-SA has been studied to solve the shape optimization of a design case to prove how the HSMA-SA can be used to solve shape optimization problems. The HSMA-SA provides better results as an arithmetic optimization algorithm than the slime mold optimization algorithm, the marine predators algorithm, and the salp swarm algorithm.
A novel hybrid marine predators-Nelder-Mead optimization algorithm for the optimal design of engineering problems
Authors: Panagant Natee , Yıldız Mustafa , Pholdee Nantiwat , Yıldız Ali Rıza , Bureerat Sujin , Sait Sadiq M. 
Published: May 2021

Abstract
The marine predators optimization algorithm (MPA) is a recently developed nature-inspired algorithm. In this paper, the Nelder-Mead algorithm is utilized to improve the local exploitation powers of the MPA when described as a hybrid marine predators and Nelder-Mead (HMPANM). Due to the harsh competitive conditions as well as the transition to new vehicles such as hybrid and full-electrical cars, the interest in the design of light and low-cost vehicles is increasing. In this study, a recent metaheuristic addition, a hybrid marine predators optimization algorithm, is used to solve a structural design optimization problem to prove how the HMPANM can be used in solving industrial design problems. The results strongly prove the capability of the HMPANM for the optimum design of components in the automotive industry.
Short term tribological behavior of ceramic and polyethylene biomaterials for hip prosthesis
Authors: Shankar Subramaniam , Nithyaprakash Rajavel , Santhosh Balasubramaniam Rajasulochana 
Published: May 2021

Abstract
Reduction in wear of artificial bio-implants results in the release of a lesser amount of wear particles into the blood stream. This paper focuses on analyzing the tribological behavior of ceramic and polyethylene bio-materials experimentally. Four different biomaterials namely Zirconia, Silicon Nitride, UHMWPE (ultra high molecular weight polyethylene) and PEEK (polyether ether ketone) are investigated for friction and wear coefficients using a pin on disc (PoD) tribometer. Alumina (Al2O3) is chosen as the disc material. Polyethylene based UHMWPE and PEEK are used as a pin material with the hemispherical end, while, Zirconia and Silicon Nitride ceramic materials are used in the form of spherical ball. 0.9 % NaCl (saline solution) is used as a lubricant medium. Zirconia showed a better reduction in friction and wear coefficient characteristics under lubrication conditions when compared with polyethylene and other ceramic materials. The estimated friction and wear coefficients would be helpful for surgeons and academicians to choose better wear-resistant bio-compatible materials for effectively design hip prosthesis. The present study compared the tribological behaviors of ceramic materials Si3N4 and ZrO2 and polyethylene materials PEEK and UHMWPE with a ceramic counterpart Al2O3 disc. In the lubrication case, ZrO2 showed a better reduction in friction and wear characteristics while in the dry case UHMWPE showed lesser wear characteristics.
Diskurse protestantischer Hebraisten der Frühen Neuzeit über jüdische Kommunikationsformeln
Authors: Stern Heidi 
Published: May 2021

Abstract
The study addresses the issue of the Christian scholarly interest in the Hebrew language since the rise of Humanism. Though the main focus of that interest in Hebrew grammar and vocabulary was to get a better understanding of the “Old Testament”, the subsequent reformation fostered the notion that a better knowledge of both the Hebrew language and the Jewish culture, can promote the conversion of Jews to Christianity. The article inspects possible other underlying motives and discourses behind the translation of Hebrew and Old Yiddish blessings into Latin as the most important lingua sacra, taking into account twentieth century theories about power and hegemony by Michel Foucault and Antonio Gramsci. The study examines the chapter about Jewish greetings and blessings in the original dictionary Šemot Devarim – Nomenclatura Hebraica Autore Helia Levita (Isny, 1542) and the revised translation as Nomenclator Eliae Levitae Germani by Johannes Drusius and son (Franeker, 1652). Also included are transliterated editions of both texts, with translations.
Crystal structure of 7-hydroxy-2,4-dimethoxy-9,10-dihydrophenanthrene from Arundina graminifolia, C16H16O3
Authors: Zhang Xing-Yu , Chen Wei-chi , Liu Mei-Feng 
Published: May 2021

Abstract
C16H16O3, monoclinic, P21/n (no. 14), a = 8.548(3) Å, b = 13.426(4) Å, c = 11.369(3) Å, β = 103.0934°, V = 1270.7(7) Å3, Z = 4, R

gt
(F) = 0.0421, wR

ref
(F
2) = 0.1243, T = 296(2) K.
Evaluation of Unevenness and Tensile Properties of Open-End Yarns Produced by Recycled Acrylic-Based Textile Wastes from Different Sources
Authors: Gun Ahu Demiroz , Yigit Emine Songul 
Published: May 2021

Abstract
The classification of acrylic textile wastes based on source is important, because each waste type from different sources greatly affects product quality. This study primarily deals with recycled acrylic fibers obtained from three categories of acrylic-based tops, yarn, and fabric waste through a mechanical recycling method of garneting. With the use of recycled acrylic fiber types as 100 % ratio and in blends with recycled cotton and virgin polyester fibers, open-end yarns in two twist coefficients were produced, and then the effects of these selected materials and twist coefficient on the unevenness (CVm) and tensile properties of the yarns were discussed. The 100 % recycled acrylic yarn type produced from the tops waste type revealed the lowest CVm results and the highest tenacity and breaking elongation results. The blending of the virgin polyester fiber with the recycled acrylic fiber types improved the tenacity results. It can be concluded that tops, yarn, and fabric acrylic wastes have potential to be used as sustainable and low-cost sources of raw material in the production of open yarns of acceptable quality.
Analysis of Vibro-Acoustic Path for Quantification of Tire-Pavement Interaction Noise Using a Two-Wheeler
Authors: Radhika B. , Sundar Sriram , Biligiri Krishna Prapoorna 
Published: May 2021

Abstract
The objective of this research was to explore methods of signal analysis to study characteristics of the path for tire-pavement systems. The scope encompassed utilization of the state-of-the-art signal processing techniques to analyze the vibro-acoustic path for quantification of tire-pavement interaction noise of different types of pavement systems. Data collection included actual field noise and acceleration measurements on asphalt concrete (AC) and cement concrete (CC) pavement sections at varying speeds. First, single frequency filtering (SFF) method was utilized to minimize the tread impact effect and highlight the path resonances based on which the absorption metrics were proposed. Sharp peaks in the average SFF spectra indicated lower absorption, and smooth peaks reflected higher absorption capacity of a pavement system. Second, the input-output relation of a dynamical system was utilized to compute the transfer function, which helped characterize nonlinear properties of the tire-pavement system. For a given pavement type, based on the inconsistency found with frequencies across all speeds, the path behavior was inferred as nonlinear. The frequencies corresponding to CC pavement were higher by about 7% compared to AC. Furthermore, at each speed, root mean square of CC pavement was about 11–18 dB higher than AC. The framework proposed in this research will help quantify the contribution of pavement types to the overall vibro-acoustic path while also being able to measure the variation in roadway’s contribution with vehicular speed.
Quality of follow-up monitoring of the adult population with grade 1-3 hypertension, with the exception of resistant hypertension, by primary care physicians in different Russian regions
Authors: Drapkina O. M. , Shepel R. N. , Drozdova L. Yu. , Kalinina A. M. , Bulgakova E. S. , Orlov D. O. , Kurilov I. V. 
Published: May 2021

In view of the high prevalence of hypertension (HTN) among Russian population, it becomes extremely important to meet the criteria for the medical care quality within the periodic examinations for this group of patients.Aim. To assess the quality of follow-up monitoring of the adult population with grade 1-3 hypertension, with the exception of resistant hypertension (RH), by primary care physicians in different Russian regions.Materials and methods. As part of working visits of the expert group from the National Medical Research Center for Therapy and Preventive Medicine in 38 Russian regions in the period from February 1, 2020 to December 15, 2020, an analysis of ambulatory records of patients with grade 1-3 hypertension was carried out. A total of 3614 ambulatory medical records (AMRs) were analyzed, of which the grade 1-3 hypertension, with the exception of RH, was revealed in 764 ones. The analysis of records was carried out using an original checklist. Statistical processing was carried out using the software package IBM SPSS Statistics 20 (USA) and Microsoft Office Excel 2016 (USA).Results. An analysis of 764 AMRs was performed. The mean age of patients was 63,9-11,2 (women, 64,7-11,3 years; men, 62,7-10,9 years). The majority (58,9%) of participants were women. Follow-up monitoring was established in a timely manner in 450 people (58,9%) of patients, of which there were 189 men (42%) and 261 women (58%). In 87,9% (n=672) of cases, the diagnosis formulation met the established clinical guidelines criteria. In 36 cases (4,7%), there was no evidence in favor of hypertension according to the current clinical guidelines. In 21,1% (n=161) of cases, the minimum recommended periodicity of visits was not observed. In last visits of 323 patients, the blood pressure did not reach the target values. AMRs did not contain information on low-density lipoprotein cholesterol (LDL-C) in 91б4% of cases (n=698). Among patients with a known level of LDL-C, the target values were achieved only in 15,2% of cases (n=10).Conclusion. Our analysis revealed the insufficient quality of outpatient medical care to hypertensive patients within the periodic examinations. Proposals are created for monitoring and measures to improve the quality of care for this category of patients.
Russian-language publication activities of medical researchers during the COVID-19 pandemic: results of the year
Authors: Kim O. T. , Drapkina O. M. , Rodionova Yu. V. 
Published: May 2021

Aim. To study the dynamics and patterns of medical publications in Russian, made during the year from February 2020, in order to assess the completeness of data on the etiology, pathogenesis, prevention and treatment of coronavirus disease 2019 (COVID-19), as well as rehabilitation and healthcare management during a pandemic.Material and methods. We searched for publications using the Pubmed database and the Elpub platform. The search was carried out using the following requests: “COVID-19” and “SARS-CoV-2”. Thematic sections were allocated according to source type, specialization and research design. The publications were classified according to keywords and meaning. The publication time was estimated by the date it was accepted for publication. Values were assessed using numerical values and graphs.Results. One hundred fifteen (28,5%) publications presented data from original research, while 288 (71,5%) — reflected the results of already existing sources. An increase in proportion of primary sources with the pandemic spread was established. There were following most common study designs: case series — 87 (77,7%); case reports — 15 (13,4%); cohort studies — 8 (7,1%); randomized clinical trials — 2 (1,8%). By topic, the largest number of articles are devoted to the diagnosis and treatment of COVID-19 — 250 (62%), epidemiology — 36 (8,9%), etiology and pathogenesis — 36 (8,9%), healthcare management — 30 (7,4%), “Other” — 20 (4,9%), and policy papers from expert communities — 13 (3,25%). The smallest number of publications is directly related to cardiology and prevention, including immunoprophylaxis — 12 (2,9%), as well as rehabilitation — 6 (1,5%).Conclusion. The dynamics and patterns of publications on COVID-19 in Russian are generally in line with global trends and reflect the pandemic characteristics in Russia. Due to disease novelty, there is currently a knowledge gap in the treatment, prevention and long-term outcomes of COVID-19. In the future, studies with a higher evidence level are needed on possible methods of treatment, prevention, including cardiology issues and vaccination, as well as rehabilitation.
(In)Equality regimes in auditing
Authors: Lima João Paulo Resende de , Casa Nova Silvia Pereira de Castro , Sales Ricardo Gonçalves de , Miranda Simone Cristina Dantas 
Published: May 2021

The literature about diversity in accounting demonstrates the phenomenon of superinclusion in that it usually focuses on women’s experiences as a universal category but focuses on white women’s experiences. In this text, we argue that intersectional theory is a possible way to address that issue since it is a theory based on considering the interactions between sex, gender, race/ethnicity, and sexuality and how those elements and their interactions give rise to an “inequality regime”. Embracing this framework, we aim to comprehend the professional development of members of non-hegemonic groups who have reached the partner position in auditing firms. We adopted a qualitative research approach, conducting six in-depth interviews with Big Four partners. We analyzed our evidence using Acker’s (2006) “bases of inequalities” and “organizing processes that produce inequality” categories, proposing the empirical category “(un)changing inequality regimes?”. This work expands the literature about diversity by deepening the discussion about the inclusion of minority groups in auditing firms, bringing a Latin American view of diversity practices.
Stock Price Reactions to Publications of Financial Statements: Evidence from the Moscow Stock Exchange
Authors: Njoroge Parmenas , Baumann Michaela , Baumann Michael , Shevchenko Dmitry 
Published: May 2021

This paper analyses the effects of financial statements on the efficiency of the Russian stock market. Specifically, we analyse the impact of financial reporting on stock prices of the firms listed on the Moscow Stock Exchange. By means of the widely used event study method, which dates back to Ball and Brown [1], we analyse how corporate news publication affects stock prices.
Our research analyses 1000 samples, each consisting of 30 events, independent of the underlying stocks/firms and analyses the relation between the behaviour of the share prices and the release of the firms’ annual, quarterly, and unscheduled financial statements. We use the daily stock price data of 56 components of the Russia Trading System Index from the years 2014 to 2020 in order to analyse the relation between the behaviour of the shares’ prices and the releases of the firms’ annual, quarterly, and unscheduled financial statements.
Using an ordinary least squares market model, we estimate the market parameters and especially the so-called normal returns, i.e. benchmark values. With this, we calculate the abnormal returns, i.e. the price changes caused by the events cf. [1; 2]. We perform several statistical tests for non-Gaussian distribution of these abnormal returns and find that there is a significantly non-Gaussian relationship between the publication of financial statements and the prices of the shares, which should not be the case in an efficient market [2].
Our results indicate that stock price volatility on the publication of financial statements may be caused by some information asymmetry, and demonstrate that the Russian stock market responds significantly to new information. Thus, we discuss recommendations to improve the information content of financial statements in Russia. This means analysts and fund managers can use new information to predict future stock returns and, thus, construct profitable portfolios.
Conceptual Framework for Financial Reporting: Problems and Prospects
Authors: Tsugankov Kim 
Published: May 2021

The objective of this paper is to define the theoretical basis and clarify the fundamental concept of the Conceptual Framework for Financial Reporting (CFFR). This is because the theoretical basis for CFFR has not been properly defined, and the articulation of the fundamental concept in the document does not correspond to its actual meaning. In clarifying, we will analyse these attributes from a critical perspective and propose an alternative articulation.
We apply a research method widely used in the USA based on semiotics, which construes accounting as a business language and requires analysis of the key accounting concepts from three viewpoints: syntactic, semantic an pragmatic. Two different theories form the theoretical basis for CFFR: the organisation theory and the residual equity theory. We further propose that the articulation of the fundamental concept of “objective of financial reporting” is self-contradictory, which is aggravated by the fact that the document deals with users of financial reporting and their objectives.
We identify major drawbacks in both theories. The organisation theory requires specific financial reporting which is incompatible with standardisation, and the residual equity theory is extremely difficult to understand and is not completely satisfactory for any of its user groups. These drawbacks and inaccuracies occlude understanding of CFFR and financial reporting.As a result, we propose that it is advisable to do the following when developing the next version of CFFR:
• define the uniform theoretical basis in CFFR clearly;• use the proprietary theory as the uniform theoretical basis;• the definition of financial reporting oriented to informational needs of company owners should be the fundamental concept of CFFR.
This will enable CFFR and financial reporting to be simpler understand and the primary needs of all user groups will be satisfied.
The Impact of Corporate Governance on the Cost of Equity for Russian Companies in the Ohlson Model
Authors: Khassanov Adil 
Published: May 2021

The purpose of this paper is to identify key indicators of corporate governance that affect the market value of Russian companies. To this end, we examine the possibility of modifying the Ohlson model of evaluating stock price dynamics in public companies, by adding corporate governance variables that may affect market value.
The study consists of the following stages: the key points of the Ohlson economic model are described, empirical works that demonstrate corporate governance as a factor in assessing the value of companies are presented, and the significance of the modified Ohlson model for the Russian market is evaluated.
The novelty of our methodology is represented in the prioritisation of our “other information” parameter, which is a combination of forecast analytical data and corporate governance indicators. Through analysis of panel data, we estimate differences in the predicted net profit indicator, calculated as the average of analyst forecasts for an individual company for a financial year, and the actual net profit. Corporate governance is represented by the percentage of board members holding professional certificates and licenses, the average term of board of directors members, the share of independent members on the board of directors, the share of independent members in the audit committee, the proportion of women on the board of directors, and the size of the board of directors.
Our results indicate dependence of share prices on the dynamics of the book value of equity, abnormal profits, the share of board members holding professional qualifications, the difference between the actual net profit and the forecast net profit of companies, and the level of gender diversification in the board of directors. The results of our analysis of deviations in average stock prices are comparable to the findings of existing literature examining the markets of Europe, Latin America and Africa.