This study delves into the challenge of hydrogen embrittlement in high-strength industries operating in hydrogen-rich environments. It investigates the response of high-strength steel 42CrMo4 to hydrogen loading using fatigue testing and diverse electrochemical conditions. Mechanical properties were analyzed through slow strain rate tests. The uncharged test-1 specimen exhibited robust mechanical attributes and a martensitic microstructure. However, heightened current density in tests-2 and 3 le...

Economics 

In the present paper we look at the structure of the photon from the point of view of electrodynamics using the generalized Maxwell equations. The reason for our analysis is that today the photon is viewed as a quantum of an electromagnetic field in the form of a harmonic transverse flat wave that travels through vacuum with the speed of light c. In this case the wave’s front takes the form of an infinite plane. From a physical point of view such a concept, in our opinion, is not very convincing...

Particle Physics 

The main purpose of this ex post facto study was to determine the student teachers’ knowledge of classroom assessment and their conceptions of classroom assessment. The sample size was 111 student teachers in a university in Jamaica. Data were collected by using a questionnaire. The results showed that the student teachers had some knowledge of classroom assessment with no differences in gender, age range, area of specialization and year in the program as it pertains to their knowledge of classr...

Teaching and Learning Technologies  Educational Technology  Higher Education 

Aphids possess flexible life cycles and are therefore capable of acclimatizing to various environmental changes. Their physiological, biochemical, and behavioral responses can easily withstand a wide range of biotic and abiotic stressors. This adaptability trait, however, appears to be highly dependent on the specific aphid species and crop types and varieties. Drought stress can alter the chemical composition of host plants, which can have positive or negative effects on aphid performance or in...

Agricultural Science 

Purpose: The aim was to evaluate the serum levels of D-Dimer during normal pregnancy and in that complicated by preeclampsia, identify their associations with maternal variables and gestational, and these verite role of D-Dimer in preeclampsia inflammation. Material and Methods: Cross-sectional, multicenter study conducted in Kinshasa on pregnant women carrying a single pregnancy between 24 and 40 weeks, without any co morbidities; preeclampsia pregnant women between 24 and 40 weeks, with no oth...

Women’s Health 

Background: In October 2016, a cholera outbreak occurred in the Cape Coast Metropolis, Central Region, Ghana, spreading rapidly in peri-urban communities. The Researchers conducted a descriptive analysis of surveillance data to examine the epidemiological characteristics of this outbreak. Methods: The retrospective analysis covered cholera cases from October to December 2016, focusing on onset date, age, sex, rapid diagnostic test (RDT) results, and residence. Pearson’s chi-square/Fisher’s exact...

Public Health  Epidemiology  Infectious Diseases 

Urban streets in developing countries are essential in meeting the needs of city populations. Unfortunately, Kariakoo’s streets cater largely support business and accessibility, with no consideration for other activities such as walking, resting, skating, and biking. Due to poor design which creates congestion and competition for space among different users. The study focused on exploring the challenges these streets face in rapidly growing cities, with the Kariakoo commercial neighborhood as a ...

Sociology  Public Policy 

The study explores the integration of Learning Analytics with the Flipped Classroom approach to improve student learning outcomes. The resultant Data-Enabled Flipped Learning (DEFL) model seeks to tackle challenges students face in comprehending and assimilating knowledge in a Business Analytics course. Educators can adapt teaching methods to individual student needs by strategically using pre-class surveys, in-class interventions, and post-class feedback. The efficacy of the DEFL model is shown...

Information Science 

The elastic band is a relatively commonly used resistance training tool. Compared with other expensive and bulky equipment, the elastic training band has the characteristics of simple structure, easy to carry, and low price. In the movement, it can simulate the movement trajectory during the movement process, and cooperate with the special training movement, the training effect is better, and it is more conducive to the improvement of the technical level. Elastic band resistance training is more...

Sports Science 

Under the background of first-class curriculum, bilingual education is helpful to cultivate international high-quality talents. Fundamental Accounting is a basic professional course for financial management majors. Taking the Bilingual education practice of Fundamental Accounting offered by Sichuan University of Arts and Sciences as an example, from the perspective of students, the research finds that the difficulties in bilingual education of Fundamental Accounting lie in the lack of connection...

Curriculum Development