bluuebunny/crossref_metadata_2025_split huggingface dataset:
Anxiety Levels and Associated Factors Among Emergency Department Personnel Fighting COVID-19
Authors: SERT Ekrem Taha , MUTLU Hüseyin , KOKULU Kamil , SARITAŞ Ayhan 
Published: September 2020

Aim: We aimed to determine anxiety levels of the emergency department (ED) personnel working in close contact with infected patients and potential risk factors associated with this anxiety.
Materials and Methods: This cross-sectional, hospital-based study was conducted among healthcare personnel working at the ED of the tertiary healthcare hospital in question, who are directly involved in the diagnosis and treatment of COVID-19 patients. The participants were administered a questionnaire that included items on sociodemographic characteristics; items on health, social, and demographic factors considered to be related with anxiety; and the 40 items of State-Trait Anxiety Inventory (STAI).
Results: The study included 138 healthcare professionals. In total, 29.7% of the participants were female and 70.3% were male. The minimum and maximum ages of the participants were 21 and 52 years, respectively, with a median age of 33 (27–40) years. The mean STAI-S and STAI-T scores of healthcare professionals included in the study were 45.4 ± 10.4 and 41.3 ± 7.3, respectively. The effect of women nurses and having children, on anxiety levels was found to be significantly high. Comparing the groups categorized for their compliance with COVID-19-related measures, the state anxiety scores of the “somewhat compliant” group were found to be higher. Participants with the perception that measures taken and institution’s available capacity were insufficient were found to have statistically significantly higher STAI-S scores than the others (p < 0.001)
Conclusion: Maintaining mental health of healthcare personnel during a pandemic is vital to better control contagious diseases. Thus, exclusive effort should be made to maintain mental well-being of healthcare professionals being exposed to COVID-19.
OPTIMASI PANJANG HYDRAULIC FRACTURE PADA RESERVOIR NON-KONVENSIONAL DENGAN METODE UNIFORM CONDUCTIVITY RECTANGULAR FRACTURE
Authors: D.S. Eriska Eklezia , Abror Hadziqul 
Published: September 2020

Energy needs in the future will continue to grow along with the growth of the population. Renewable and non-renewable energy sources continue to develop with various innovations. However, energy consumption from non-renewable energy such as coal, oil, and natural gas still dominates. Therefore, one of the potential non-renewable energy sources that can be optimized at present is unconventional oil and gas reserves. Unconventional oil and gas are oil and gas that comes from sourcerock, low permeability reservoirs, such as shale oil, shale gas, tight sand gas, coal bed methane, and methane-hydrate. To produce oil and gas from the tight sand gas reservoir, the hydraulic fracture method is a commonly used method. A hydraulic fracture is a well stimulation technique in which rock is fractured by a pressurized liquid. The process involves the high-pressure injection of fracking fluid into the wellbore to create crack in the deep rock formation through which natural gas, petroleum and brine will flow more freely. When the hydraulic pressure is removed from the well, small grains of hydraulic fracturing proppants hold the fracture open. Well log data such as gamma ray log, SP log, density log, resistivity log and so on will be processed and produce shale volume, porosity, permeability, and water saturation. Procced data from well log will be validated by core data. These data will be input into a reservoir model. A hydraulic fracture design will be made in the reservoir model with a certain length, width, and permeability using the uniform conductivity rectangular fracture method. The simulation will continue by using different length fracture design so that the optimum fracture length value is obtained.
Keywords: Hydraulic Fracture, Reservoir Modelling, Reservoir Simulation
APLIKASI PRINSIP INKLUSI EKSKLUSI DALAM METODE KOMBINASI SENSUS PENDUDUK 2020
Authors: Notiragayu Notiragayu , Amanto Amanto , Aziz Dorrah 
Published: September 2020

The 2020 population census (SP 2020) uses a new method called the combination method by utilizing basic population registration data available at the Directorate General of Civil Registration, the community register independently (CAWI) and door to door data collection by officers (PAPI and CAPI). Data on the number, composition, distribution, and characteristics of the population with this new method is prone to overlapping, one data is counted several times which results in the calculation of bias from the actual amount. This paper shows how the principle of exclusion inclusion can be applied to overcome data that is counted several times. Keywords : combined method, overlapping, The Principle of Inclusion-Exclusion
Exploring Evolution of Public Opinions on Tianya Club Using Dynamic Topic Models
Authors: Yan Zhihua , Tang Xijin 
Published: September 2020

AbstractOnline media have brought tremendous changes to civic life, public opinions, and government administration. Compared with traditional media, online media not only allow individuals to browse news and express their views more freely, but also accelerate the transmission of opinions and expand influence. As public opinions may arouse societal unrest, it is worth detecting the primary topics and uncovering the evolution trends of public opinions for societal administration. Various algorithms are developed to deal with the huge volume of unstructured online media data. In this study, dynamic topic model is employed to explore topic content evolution and prevalence evolution using the original posts published from 2013 to 2017 on the Tianya Zatan Board of Tianya Club, which is one of the most popular BBS in China. Based on semantic similarities, topics are grouped into three themes: Family life, societal affairs, and government administration. The evolution of topic prevalence and content are affected by emergent incidents. Topics on family life become popular, while themes “societal affairs” and “government administration” with bigger standard deviations are more likely to be influenced by emergent hot events. Content evolution represented by monthly pairwise distance matrix is very easy to find change points of topic content.
Bifractional Black-Scholes Model for Pricing European Options and Compound Options
Authors: Xu Feng 
Published: September 2020

AbstractRecent empirical studies show that an underlying asset price process may have the property of long memory. In this paper, it is introduced the bifractional Brownian motion to capture the underlying asset of European options. Moreover, a bifractional Black-Scholes partial differential equation formulation for valuing European options based on Delta hedging strategy is proposed. Using the final condition and the method of variable substitution, the pricing formulas for the European options are derived. Furthermore, applying to risk-neutral principle, we obtain the pricing formulas for the compound options. Finally, the numerical experiments show that the parameter HK has a significant impact on the option value.
Potential management practices of saltwater intrusion impacts on soil health and water quality: a review
Authors: Bayabil Haimanote K. , Li Yuncong , Tong Zhaohui , Gao Bin 
Published: September 2020

AbstractSeveral studies have documented the multifaceted impacts of climate change and variability on agricultural and environmental sustainability, and social and economic development. Climate change and variability contribute to increased warmer conditions, increased frequency of heavy rain that accounts for an increasing proportion of total rainfall, extreme weather characterized by spatially variable cycles of drought and wetness, increased frequency of tropical storms/hurricanes, increased frequency of storm surges, and accelerated rate of sea-level rise (SLR). As SLR continues, it is expected that salinity due to saltwater intrusion (SWI) will impact soil health and agricultural production. As such, the significant threats of salinity necessitate more work to be done to better understand its impact on soil health and associated functional ecosystem processes. This is of even greater importance in areas such as South Florida where the surface and groundwater resources are hydrologically connected due to the shallow and highly permeable limestone soils. A better understanding of the impacts of salinity due to SWI on soil health is critical to design effective mitigation strategies. Healthy soil has multifaceted benefits to enhance agricultural productivity, i.e. regulates the flow of water; serves as a source and sink of nutrients; minimizes greenhouse gas emissions and provides optimal biological and chemical conditions for the transformation of nutrients into plant-available forms. Improved understanding of the processes and impacts of SWI on soil health will assist in guiding management decisions and policies to mitigate the impacts of SWI and salinity on agricultural soils. This review paper provides a comprehensive overview of the impacts of SWI and soil salinity on agricultural soil health and water quality.
Air flow model development and application in a complex combined sewer system
Authors: Zobeyer Hasan , Zhu David Z. , Edwini-Bonsu Stephen 
Published: September 2020

Abstract
A steady-state air flow model was developed and applied in a complex combined sewer system in the city of Edmonton, Alberta, Canada. The model solves the continuity at each junction and the momentum equation for the links coupled with dropshaft and other manholes. The dropshaft pressure gradient is computed using the dropshaft equation and air flow rate through manhole pickholes is computed considering the opening as an orifice. A leakage factor is used as a calibration parameter to represent the area through which air can leak from the manholes into the neighborhood. The model uses an iterative solution algorithm with a forward sweep for the continuity and backward sweep for the momentum equation. An underrelaxation is applied to update pressure in each iteration for model stability. The model was calibrated and validated by using the measured air flow rate and manhole pressure in the sewer network, with good results. An analysis of the air flow characteristics shows that a significant amount of air is brought into the system due to a large headspace in the upstream trunk but over 70% of this air is released into the neighborhood due to reduced headspace in the downstream trunk.
Impact of Digitalization on the Transformation of the Higher Education System
Authors: Chinayeva T. I. 
Published: September 2020

Purpose of the study. The rapidly developing processes of the formation of the digital economy affect various spheres of human life in modern society, inevitably changing the educational environment. The aim of the work is to analyze the main development trends and emerging transformation processes in the field of higher education under the influence of growing digitalization and digital transformation of various aspects of human life.Materials and methods. In the course of the work, a dynamic, structural analysis of analytical and statistical information about the processes taking place in this area was used, as well as methods of theoretical research: analysis and generalization.Results. The pace of development of the digital economy in the modern world is very rapid, due to which the life of a number of professions is shortened, and changes affecting the content of labor contribute to the emergence of new ones. Based on this, it is necessary to understand the main directions of development in higher education, since personnel training is one of the most important components of the digitalization of the economy. The paper formulates the main directions for the development of education using digital technologies for the training of qualified specialists who meet the requirements of the digital economy and outlines a number of problems that the educational system will face in the process of transformation.Conclusion. The spread of digital and information technologies contributes to significant transformations in various fields of human activity and the sphere of higher education is no exception. The format of the digital economy is quite mobile, which leads to the fact that some specialties will emerge, others will lose their importance and disappear more or less rapidly, and also under the influence of constant and fairly rapid changes, the requirements for training will change. Considering the high mobility and variability of the current situation both in the economy and in the field of higher education, there is a need for constant adjustment of educational programs taking into account the ongoing changes. The rapid development of new knowledge and technologies, and many other reasons, contribute to significant transformations of higher education systems around the world. At the same time, considering the speed of changes, it is quite difficult at the present time to assess the entire range of challenges and problems that face the sphere of higher education. Separate sections of the work have been published earlier in a number of articles by the author devoted to this problem.
The Implementation of Curriculum 2013 in English Teaching-Learning Process at SMA Negeri 1 Lubuk Pakam
Authors: Sinambela Windasari Safitri , Ginting Siti Aisah 
Published: September 2020

This study deals with the implementation of Curriculum 2013 in English teaching learning process at SMA Negeri 1 Lubuk Pakam. The aims of this study were to describe the teachers’ effort in English teaching-learning process by applying scientific approach, to describe the teachers’ impelementation in English teaching-learning process by applying scientific approach, and to explain the teachers’ reasons to for the implement the scientific approach on that way. This study conducted by using qualitative research design. The source data of this study were teachers at XI IPA 1 and X IPS 1 SMA Negeri 1 Lubuk Pakam comprised two teachers. The data of this study was the implementation of Curriculum 2013 on teaching-learning English process in the classroom. The data was analyzed by using Interactive Model by Miles, Huberman, and Saldana. Based on data analysis, it was found that the teachers did not implement all the curriculum 2013 steps correctly, the teachers’ reasons for the implement curriculum 2013 on their way because the teachers had many experience in teaching, curriculum 2013 was done only because of the rule from the school. Other reasons were because they had short time in teaching and lacked of the books for material in curriculum 2013. Keywords: curriculum 2013, implementation, English teaching learning process, scientific approach
The Maintenance of Siladang Language
Authors: Siregar Horia , Gurning Busmin 
Published: September 2020

This study observed Siladang language maintenance in Desa Sipapaga. The objectives of the study are (1) to examine the factors affecting language maintenance (2) to find out the strategies in maintaining the Siladang language and (3) to find out the reasons of the Siladang people in maintaining their language. The method of this study was descriptive qualitative research. The participants were 20 Siladang people who live in Desa Sipapaga were taken by purposive random sampling. The research results are as follows (1) There are seven factors affecting Siladang language maintenance in Desa Sipapaga such as, Ethnolinguistic vitality, living together and see each other frequently, use of language in family domain (intra and inter marriage family, use of language in neighbor domain, use of language in religion domain, use of language in workplace domain, and practice traditional ceremony, (2) In maintaining the Siladang language, the Siladang people conducted some strategies such as; family language policy, using Siladang language in their daily life frequently, the using of Siladang language in cultural activity like in wedding ceremony. (3) The reasons of the Siladang people maintain their language are; they were proud of being Siladang people and speak Siladang language, and speak Siladang language shows their identity as Siladang people. Keywords: language maintenance, Siladang
TRANSLATION PROCEDURE USED IN QUICK REFERENCE OF COMPAQ NOTEBOOK PC
Authors: Nasution Indah Sari Ayu , Husein Rahmad , Zainuddin Zainuddin 
Published: September 2020

The aims of this study were to find out the types of translation procedures in the translation of Quick Reference of Compaq Notebook PC from English into Indonesian, and to describe the ways of proceduer translated in contextual situation from English into Indonesian. The research was conducted by using descriptive qualitative design. The data of this study were word,phrase,clouse and sentence that were translated from English into Indonesian on a book of “Quick Reference of Compaq Notebook PC as the source of data. Besides that, the data was analyzed by using translation procedure based on (Newmark,1988) which used to answer the questions number one and two to find the types and ways of translation procedure were used in Quick Reference of Compaq Notebook PC.The results of this study were found that there were eleven types of translation procedure used in translation of Quick Reference of Compaq Notebook PC namely transference, naturalization, culture equivalent, functional equivalent, synonymy, through translation, shift or transposition, modulation, recognised equivalent,componential analysis and reduction and expansion.The context of Translation procedure used in Quick Reference of Compaq Notebook PC were context situation based Halliday (1987) which used to answer the question number three.It consists of field,tenor and mode. Keywords: Quick Reference, Compaq Notebook PC, Translation Strategies
TRANSLATION PROCEDURESIN PATIENT INFORMATION LEAFLETS
Authors: Rahmawati Rahmawati , Gurning Busmin , Murni Sri Minda 
Published: September 2020

The aims of this study were to find out the types of translation procedures in Patient Information Leaflets, to describe the realization of translation procedures and to explain about the reason of certain translation procedures realized in Patient Information Leaflets.The research was conducted by using qualitative descriptive design. The data of this study was translation unit that consists of words, phrases, clauses and sentences in Patient Information Leaflets in two versions, English as the source text and Bahasa Indonesia as the target text. The data was analyzed by using the theory of Translation Procedures based on (Vinay and Darbelnet, 2000) to find the types, realization and the reason of certain translation procedures were used in Patient Information Leaflets. The results of the study were; there were eight types of translation procedures in patient information leflets namely borrowing, calque, literal translation, transposition, modulation, equivalent, deletion and mixing procedures, there were some realization of translation procedures in patient information leaflets, and there were seven reasons behind the realization of translation procedures. Keywords: Translation, Translation Procedures, Patient Information Leaflets, English and Bahasa Indonesia.
A CRITICAL DISCOURSE ANALYSIS ON ORIFLAME CATALOGUE BEAUTY PRODUCT ADVERTISEMENTS
Authors: Butar Butar Mei Lastri E.F. , Pulungan Anni Holila , Husein Rahmad 
Published: September 2020

The aims of this study are to investigate linguistic features, to describe the discursive techniques and to describe social implications that are used in oriflame catalogue beauty product advertisements. This research was conducted by using qualitative research design. The data of this study were texts on oriflame beauty product advertisements. The data analyzed by using three dimensional nature of critical analysis as preceded by Fairclough. There are three dimensional frameworks of analysis that are description/ text analysis, interpretation/process and explanation/social. The findings are (1) there were 7 out of 8 kind of linguistic features were found in oriflame catalogue beauty product advertisements. the most dominant linguistic feature used in the advertisement is adjective, (2) there were 9 discursive techniques that found in the second level analysis, the most technique used in the advertisements is emotive word.Keywords: Critical Discourse Analysis, Advertisement, Linguistic Feature, Discursive Technique, Social Implication
The controversies of parabens – an overview nowadays
Authors: Petric Zvonimir , Ružić Julia , Žuntar Irena 
Published: September 2020

Abstract
Effects of paraben toxicity, i.e., endocrine-disruption properties, are in the focus of researchers for decades, but still – they are a hot subject of debate. Parabens are aliphatic esters of p-hydroxybenzoic acid, which are widely used as antimicrobial agents for the preservation of cosmetics, pharmaceuticals and foods. Mostly used parabens are methyl-, ethyl-, propyl- and butylparaben. Although the toxicity of parabens is reported in animals and in in vitro studies, it cannot be taken for granted when discussing hazards for human health due to an unrealistic exposure -safety profile. Many studies have demonstrated that parabens are non-teratogenic, non-mutagenic, non-carcinogenic and the real evidence for their toxicity in humans has not been established. For now, methyl-, ethyl- and propylparaben are considered safe for use in cosmetics and pharmaceuticals within the recommended range of doses. Regarding alternatives for parabens, a variety of approaches have been proposed, but every substitute would need to be tested rigorously for toxicity and safety.
Improved 11α-hydroxycanrenone production by modification of cytochrome P450 monooxygenase gene in Aspergillus ochraceus
Authors: Li Qianqian , Shi Li , Liu Yingying , Guan Shimin , Zhang Shuo , Cai Baoguo , Rong Shaofeng 
Published: September 2020

Abstract
Eplerenone is a drug that protects the cardiovascular system. 11α-Hydroxycanrenone is a key intermediate in eplerenone synthesis. We found that although the cytochrome P450 (CYP) enzyme system in Aspergillus ochraceus strain MF018 could catalyse the conversion of canrenone to 11α-hydroxycanrenone, its biocatalytic efficiency is low. To improve the efficiency of 11α-hydroxycanrenone production, the CYP monooxygenase-coding gene of MF018 was predicted and cloned based on whole-genome sequencing results. A recombinant A. ochraceus strain MF010 with the high expression of CYP monooxygenase was then obtained through homologous recombination. The biocatalytic rate of this recombinant strain reached 93 % at 60 h without the addition of organic solvents or surfactants and was 17–18 % higher than that of the MF018 strain. Moreover, the biocatalytic time of the MF010 strain was reduced by more than 30 h compared with that of the MF018 strain. These results show that the recombinant A. ochraceus strain MF010 can overcome the limitation of substrate biocatalytic efficiency and thus holds a high poten tial for application in the industrial production of eplerenone.