scholarly journals Analysis of Environmental Factors for Mobile Software Development Focused on Korean Companies

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Kwang Yoon Song ◽  
In Hong Chang ◽  
Hoang Pham
Keyword(s):  
Environmental Factors ◽  
Software Development ◽  
Software Reliability ◽  
Factors Affecting ◽  
Time Investment ◽  
Mobile Software ◽  
The Difference ◽  
Potential Factors ◽  
Exact Size ◽  
The Impact

Software should be a product that can be used easily and accurately by the user and should be improved quickly and accurately when problems arise. In many software development projects, software requirements are frequently modified during the design or development phase, which tests the development of specific designers’ or developers’ capabilities. Software development environmental factors (SDEFs), such as differences in mutual work recognition among users, developers, and testers or knowledge differences, can hinder communication, which may lead to faulty development owing to erroneous job definition. Because the exact size and scope of the software cannot be calculated, the risk of excessive requirements, such as schedule, cost, and manpower, may increase. This study aims to investigate 32 SDEFs to examine the influence of factors affecting the reliability of software developed by Korean companies to identify factors with high influence and compare differences with previous studies. Moreover, we found whether any new SDEFs from the top 10 rankings only affected Korean companies, and also US companies included in previous studies. A factor analysis revealed several potential factors to identify the mutually independent characteristics of the factors. Through statistical analysis methods, the difference between the group means and the impact on improving the software reliability were found in Korean companies. These findings can provide useful benefits to software developers and managers working in countries with different or similar cultures and help increase working efficiency, i.e., work versus time investment and software reliability improvement.

Factors affecting the amplitude of the τ angle in proteins: a revisitation

2017 ◽  
Vol 73 (7) ◽  
pp. 618-625 ◽  
Author(s):  
Nicole Balasco ◽  
Luciana Esposito ◽  
Luigi Vitagliano
Keyword(s):  
Protein Structures ◽  
Factors Affecting ◽  
X Ray ◽  
Backbone Conformation ◽  
Potential Factors ◽  
The Stability ◽  
Major Factors ◽  
The Impact ◽  
Open Issues

The protein folded state is the result of the fine balance of a variety of different forces. Even minor structural perturbations may have a significant impact on the stability of these macromolecules. Studies carried out in recent decades have led to the convergent view that proteins are endowed with a flexible spine. One of the open issues related to protein local backbone geometry is the identification of the factors that influence the amplitude of the τ (N—Cα—C) angle. Here, statistical analyses performed on an updated ensemble of X-ray protein structures by dissecting the contribution of the major factors that can potentially influence the local backbone geometry of proteins are reported. The data clearly indicate that the local backbone conformation has a prominent impact on the modulation of the τ angle. Therefore, a proper assessment of the impact of the other potential factors can only be appropriately evaluated when small (φ, ψ) regions are considered. Here, it is shown that when the contribution of the backbone conformation is removed by considering small (φ, ψ) areas, an impact of secondary structure, as defined byDSSP, and/or the residue type on τ is still detectable, although to a limited extent. Indeed, distinct τ-value distributions are detected for Pro/Gly and β-branched (Ile/Val) residues. The key role of the local backbone conformation highlighted here supports the use of variable local backbone geometry in protein refinement protocols.

scholarly journals Environmental Factors Causing the Development of Microorganisms on the Surfaces of National Cultural Monuments Made of Mineral Building Materials—Review

Coatings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1203
Author(s):  
Elżbieta Stanaszek-Tomal
Keyword(s):  
Environmental Factors ◽  
Building Materials ◽  
Ion Concentration ◽  
Physical Factors ◽  
Comprehensive Overview ◽  
Hydrogen Ion Concentration ◽  
Factors Affecting ◽  
Stone Concrete ◽  
The Impact ◽  
Cultural Monuments

The ability of microorganisms to degrade building materials depends on several factors. Biological corrosion occurs in close dependence with chemical and physical factors affecting microorganisms. The growth and development of microorganisms is stimulated by external stimuli, i.e., environmental factors. Microorganisms have a relatively large tolerance range for changes in environmental conditions. Under the right conditions, microorganisms thrive very well. The adverse effects may cause the inhibition of cell growth, damage, or lead to the death of the microorganism. Considering the impact of environmental factors on microorganisms, it is not possible to identify the most important of them. The result effect of overlapping factors determines the possibility of the growth of certain microorganisms. The main factors affecting the growth are temperature, humidity, hydrogen ion concentration in the environment, oxidoreductive potential, water activity in the environment, and hydrostatic pressure. This article provides a comprehensive overview of the factors causing biodeterioration. The influence of external/internal environment on the surface of cultural monuments made of mineral building materials, i.e., stone, concrete, mortar, etc., is presented.

scholarly journals The Impact of Learning Environment on EFL Students’ Academic Achievement: A study of Socio-Cultural Factors Affecting Academic Achievement

2022 ◽  
Author(s):  
Elmakki AMIRI ◽  
Abderrahim El KARFA
Keyword(s):  
Academic Achievement ◽  
Environmental Factors ◽  
Learning Environment ◽  
Foreign Language ◽  
First Year ◽  
First Year Students ◽  
Factors Affecting ◽  
Academic Achievements ◽  
Efl Students ◽  
The Impact

It is worth pointing out that learning a foreign language in a multicultural context is a long and complex undertaking. Several factors influence whether or not English as a Foreign Language (EFL) students can accurately perceive and produce the foreign language. These variables can potentially contribute to the success and, or failure in learning and acquiring a foreign language. Given the Moroccan educational system, the research provided minimal insight into the relationship between those factors and language achievement. The present study’s aim, therefore, was to investigate the environmental factors that affect students’ academic performance. It also aimed to find out how these variables affect students’ academic achievements. To achieve this aim, data have been collected via open-ended questionnaires, and interviews addressed mainly to First Year Students of Master Programs, Department of English, FLDM, USMBA-Fez. The findings have shown that students’ academic achievements were significantly positively/negatively linked with the environmental factors, namely societal, home/family and school/classroom variables. The findings also revealed that the more highly sophisticated the social environment is, the more likely it is to foster EFL students’ academic achievements. In addition, the more similarity exists between the students’ cultures, the more successful the learning is. This study also showed that the development of EFL proficiency is a product of contextual factors influence. As such, the study concludes with several implications that brought up for possible effective change in the future to enhance the learning environment atmosphere, boost students’ academic achievements, and, therefore, achieve better results.

Clinical implication of using up both fluoropyrimidine (FU) and paclitaxel (PTX) in patients with severe peritoneal metastases (SPM) of gastric cancer (GC).

2021 ◽  
Vol 39 (3_suppl) ◽  
pp. 221-221
Author(s):  
Hiroyuki Arai ◽  
Eisuke Inoue ◽  
Kensei Yamaguchi ◽  
Narikazu Boku ◽  
Hiroki Hara ◽  
...  
Keyword(s):  
Clinical Implication ◽  
Prognostic Score ◽  
Glasgow Prognostic Score ◽  
Best Supportive Care ◽  
Combination Strategy ◽  
Factors Affecting ◽  
The Difference ◽  
Post Hoc ◽  
The Impact ◽  
Selection Of

221 Background: JCOG1108/WJOG7312G trial showed favorable but not significantly better outcomes of 5-FU/ l-leucovorin ( l-LV) /PTX combination (FLTAX) compared to 5-FU/ l-LV (FL) in untreated patients with SPM of GC. However, a half of patients treated with FL could not sequentially use PTX which is a key drug for peritoneal metastasis. We conducted a post hoc analysis to investigate the clinical implication of using up both FU and PTX in either combination or sequential strategy for GC patients with SPM. Methods: Among 101 patients enrolled in the trial (FL: N = 51; FLTAX: N = 50), overall survival (OS) was compared between three subgroups: patients treated with FL followed by PTX (FL/PTX: N = 25), those treated with FL followed by best supportive care (BSC) (FL/BSC: N = 21), and those treated with FLTAX (per protocol population, N = 48). To identify the factors affecting the likelihood of using sequential PTX (LUSP), we compared baseline characteristics between the FL/PTX and FL/BSC subgroups. Each baseline covariate was tested for the impact on LUSP by logistic regression model. The difference of treatment efficacy between FL and FLTAX was assessed in subgroups stratified by the factors identified to affect LUSP. Results: Patients in the FL/PTX subgroup showed significantly better OS than those in the FL/BSC subgroup (median OS, 7.8 vs 2.0 months; hazard ratio [HR] 0.24, 95% confidence interval [CI] 0.12-0.48, p < 0.01) and equivalent OS compared to those in the FLTAX subgroup (median OS, 7.8 vs 8.0 months; HR 0.83, 95% CI 0.50-1.39, p = 0.49). Compared with patients in the FL/BSC subgroup, those in the FL/PTX subgroup had a trend for lower frequency of Glasgow prognostic score (GPS) 2 (40.0% vs 66.7%, p = 0.17) and unresectable type (76.0% vs 95.2%, p = 0.07). GPS 2 and unresectable type were identified as factors with a worse impact on LUSP compared to GPS 0 and recurrent type, with odds ratio (OR) of 0.29 (95% CI 0.05-1.78, p = 0.18) and that of 0.16 (95% CI 0.02-1.44, p = 0.10), respectively. Among all patients enrolled in the trial, 43 patients had both GPS2 and unresectable type (score 2), 45 had either (score 1), 11 had neither (score 0), and two lacked the data of GPS. Median OS in the patients with score 2, 1, and 0 was 4.7, 7.8, and 18.8 months, respectively (score 2 vs 0, HR 4.37, 95% CI 1.84-10.42; score 1 vs 0, HR = 2.80, 95% CI 1.19-6.64). Compared to FL, FLTAX showed better OS in patients with score 2 (HR = 0.60, 95% CI 0.32-1.13) and in those with score 1 (HR = 0.77, 95% CI 0.42-1.42), but worse OS in those with score 0 (HR = 4.74, 95% CI 0.49-45.85). Conclusions: Combination or sequential use of active two drugs, 5-FU and PTX, might contribute to better OS of GC patients with SPM. However, because selection of patients suitable to sequential use is difficult, the combination strategy FLTAX is a favorable treatment option.

scholarly journals Impact of Macro Environmental Factors on Garments Industry That Drives Export in Bangladesh

2017 ◽  
Vol 12 (2) ◽  
pp. 100-111
Author(s):  
Mohammad Islam ◽  
Dulal Chandra Pattak
Keyword(s):  
Environmental Factors ◽  
Swot Analysis ◽  
Code Of Conduct ◽  
Global Perspective ◽  
Factors Affecting ◽  
Cost Leadership ◽  
The World ◽  
Security Compliance ◽  
Highly Correlated ◽  
The Impact

Abstract It goes without saying that Garments industry of Bangladesh has drawn a special attention to the mass people in the world because of being both cost leader and quality leader at the same time. The purpose of this research paper is to analyze the garments industry in Bangladesh which is going to be an emerging tiger in the world economy. It also aims to assess the impact of macro-environmental factors affecting the industry by PESTEL analysis. Again, five forces model has been analyzed to assess the impacts of competitive external factors on the Garments industry in Bangladesh. Furthermore, Garments sector competitive responses to the primary issues affecting the industry have been evaluated here. It also outlines the primary external influences to which this industry is subject. In this case, SWOT analysis has been conducted to assess the competitive position of this industry in comparison with the global perspective. The study suggests that total export is highly correlated with the exports of garments. It also finds that there is severe lacking in the safety and security compliance, wages and compensations and code of conduct of the current organizations. Moreover, GSP facility withdrawn can impact severely on the ready made garments of Bangladesh to compete with price in the international market with China, India and Vietnam etc. The ready made garments sector of Bangladesh is enjoying cost leadership as a source of completive advantage because of cheap labor. Finally, the study would like to recommend for further improvement of garment sector in Bangladesh.

scholarly journals Characteristics of Cladophora and coexisting filamentous algae in relation to environmental factors in freshwater ecosystems in Poland

2016 ◽  
Vol 45 (2) ◽  
Author(s):  
Marta Pikosz ◽  
Beata Messyasz
Keyword(s):  
Environmental Factors ◽  
Freshwater Ecosystems ◽  
Water Bodies ◽  
Filamentous Algae ◽  
Factors Affecting ◽  
Ecological Characteristics ◽  
Physicochemical Conditions ◽  
Potential Factors ◽  
The Individual

AbstractPotential factors affecting the occurrence of filamentous algae include the morphometry of water bodies, the type of substrate and physicochemical conditions of the habitat. This study attempts to describe the individual filamentous algae species recorded in Poland, taking into account the trophic and ecological characteristics based on our own research and available literature data. Filamentous algae attached to the substrate as well as those forming free-floating patches (loose or dense mats) and crusts occur in all types of water bodies. Among the representatives of filamentous algae species,

scholarly journals Environmental Factors Contribute to the Transmissibility of COVID-19: Evidence from an Improved SEIR Model

2021 ◽  
Author(s):  
Jie Li ◽  
Kun Jia ◽  
Wenwu Zhao ◽  
Bo Yuan ◽  
Yanxu Liu
Keyword(s):  
Environmental Factors ◽  
Pearson Correlation ◽  
Time Lag ◽  
Virus Transmission ◽  
Ecological Factors ◽  
Population Mobility ◽  
Seir Model ◽  
Factors Affecting ◽  
Distributed Lag ◽  
The Impact

Abstract COVID-19 is ravaging Brazil, and its spread shows spatial heterogeneity. Changes in the environment have been implicated as potential factors involved in COVID-19 transmission. However, considerable research efforts have not elucidated the risk of environmental factors on COVID-19 transmission from the perspective of infectious disease dynamics. The aim of this study is to model the influence of the environment on COVID-19 transmission and to analyze how the socio-ecological factors affecting the probability of virus transmission in 10 states dramatically shifted during the early stages of the epidemic in Brazil. First, this study used a Pearson correlation to analyze the interconnection between COVID-19 morbidity and socio-ecological factors, and identified factors with significant correlations as the dominant factors affecting COVID-19 transmission. Then, the time-lag effect of dominant factors on the morbidity of COVID-19 was investigated by constructing a distributed lag nonlinear model, and the results were considered to be an improvement over the SEIR model. Lastly, a machine learning method was introduced to explore the nonlinear relationship between the environmental propagation probability and socio-ecological factors. By analyzing the impact of environmental factors on virus transmission, it can be found that population mobility directly caused by human activities had a greater impact on virus transmission than temperature and humidity. The heterogeneity of meteorological factors can be accounted for by the diverse climate patterns in Brazil. The improved SEIR model was adopted to explore the interconnection of COVID-19 transmission and the environment, which revealed a new strategy to probe the causal links between them.

scholarly journals Modern Transformations of Geosystems of the Western Macroslope of the Barguzin Ridge

2021 ◽  
Vol 38 ◽  
pp. 88-99
Author(s):  
Z. O. Litvintseva ◽  
Keyword(s):  
Climate Change ◽  
Environmental Factors ◽  
Forest Fires ◽  
Factors Affecting ◽  
The Past ◽  
Natural Restoration ◽  
The Republic ◽  
Growing Conditions ◽  
The Impact ◽  
Natural Territory

Forest fires are one of the most important environmental factors affecting the environment. Due to climate change and the increasing frequency of forest fires, studies of the consequences of forest fires and the processes of restoration of disturbed geosystems are relevant. Over the past 20 years, there has been an increase in the frequency of fires on the territory of the Republic of Buryatia as a whole, and the western macro slope of the Barguzin ridge in particular. The situation is aggravated by the fact that a significant part of the fires occur in hardto- reach areas of the ridge, which complicates their elimination. The paper presents the results of observations (2015-2020 years) on the impact of forest fires on the taiga geosystems of the western macroslope of the Barguzin ridge. The features of post-fire restoration of geosystems are considered. The natural restoration of forests depends on the nature of the forest growing conditions and the ecological characteristics of the stands. Restoration of dark coniferous-taiga geosystems, including relict ones, after intense fires has not been revealed, since forest growing conditions are changing. The relevance of the research is also related to the fact that the western macroslope of the Barguzin Ridge is located within the Baikal Natural Territory (BPT), where protected areas are located and it is not uncommon for fires to disrupt relict geosystems that are under protection.

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