ABSTRACT

This work presents two iterative algorithms for computing numerical solutions of nonlinear equations. Our research findings demonstrate that these methods possess convergence orders of six and ten. Additionally, our analysis shows that these techniques have higher efficiency indexes compared to certain recent methods. We also include numerical examples to evaluate the performance of the proposed approaches and validate their theoretical convergence orders.

Keywords: Nonlinear equation; Iterative method; Convergence order.

ABSTRACT

The aim of the current research is to identify and analyze the impact of the relationship between adopting strategic entrepreneurial orientations in their dimensions of innovation, seizing opportunities, and bold decision-making, and developing production processes in their dimensions of improving operational efficiency, raising product quality, reducing waste, and increasing productivity. It is also to evaluate the extent to which this relationship contributes to raising the efficiency of production performance at Kronje Company. The descriptive analytical approach was used to collect and analyze data using a primary data collection tool, the questionnaire. The research relied on the opinions of a sample of employees at Kronje Company, and relied on a sample of (125) workers to measure the phenomenon under study. Accordingly, the questionnaire was distributed to them, and (125) questionnaires were retrieved, all of which were valid for analysis Statistical,The data and hypotheses adopted in the research were analyzed using appropriate statistical methods, including the SPSS V26 statistical analysis program. The research reached several results, the most important of which are: There is a statistically significant effect of the combined strategic entrepreneurial orientations with their dimensions on the development of production processes in all their dimensions in the researched company. The most important recommendations are: The researched company in particular, and similar companies in general, should adopt strategic entrepreneurial orientations in its field of work to develop production efficiency, improve product quality, and reduce costs in order to be able to compete with other companies operating in the same sector.

Keywords: Strategic  Entrepreneurial Orientations, Development of Production Processes.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 

ABSTRACT

Pseudomonas aeruginosa is a multi-resistant and opportunistic pathogen that is commonly involved in severe infections in burn sufferers. The objective of this study was to detect the existence of CRISPR-Cas in clinical isolates of P. aeruginosa causing burn wound infections and to examine their relationship with resistance to antibiotics and phage. One hundred and ten clinical specimens were taken from burn cases in AL-Fayhaa General Hospital. The isolates were characterized by routine microbiological methods, and Vitek® 2 compact system was used to determine antibiotic susceptibilities. A molecular screen for CRISPR-Cas genes, specifically cas5, cas7, and cas8, was undertaken. Results only the case5 gene was detected in all isolates and it showed a band of 829 bp, whereas the cas7 and cas8 genes had intermittent presence. In addition, some of the bacteriophages isolated from sewage samples showed low lytic activity against the MDR isolates. These results indicate a correlation between the presence of cas5 and resistance to bacteriophage therapy, providing further insight into the contribution of CRISPR-Cas systems to adaptive immunity and antibiotic resistance in P. aeruginosa. This study emphasizes the importance of further molecular study of CRISPR-Cas systems as novel therapeutic targets for treatment of resistant infections of burn wound.

Keywords: Crispr-Cas, Pseudomonas aeruginosa, Burns, Bacteriophage.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 

ABSTRACT

Heavy metal pollution as a result of contaminated industrial wastewaters are detrimental to the biological system and environment. Thus needs to develop efficient and cost-effective treatment methods for their removal. In the present study, the Cr (VI) concentration in the wastewater sample was 2.14±0.270 mg/L. which has exceeded the accepted limit of 1.0 mg/l for the discharge of industrial effluents into inland surface waters in Malaysia. A chromium resistant strain, identified as Bacillus sp. was able to remove 32.6% and 49.7% of chromium respectively after 96 hours with the initial concentration of 100 mg/L at different pH and temperature. The results of the experiment showed that the isolated Bacillus sp. has the capability to remove other heavy metals (Cu, Pb and Cd) in the electroplating effluent and other heavy metal contaminated ecosystems.

Keywords:  Chromium ion; Wastewater treatment; Bacillus sp.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). 

ABSTRACT

This study aims at knowing the reality of knowledge-sharing from the perspective of the teaching staff at Amran University, in the fields of teaching, research, consulting and community service, and to know if there are statistically differences in the response of the participants (sample's responses) due to the variables (specialization, academic degree, and experience).

The study followed the descriptive approach and data was collected based on a questionnaire which was distributed to a sample of (28) participants (members). It used the statistical packages (SPSS) to analyzed;

The study revealed the following results:

·       The rate to which the teaching staff practice knowledge-sharing from their perspective; in general, it was “medium.” While in the field of “teaching” was “high”, and in the field of “scientific research, community service” it was “medium”.

·       It also showed that there were no statistically significant differences between the averages of the study-sample members(participants) responses regarding the degree of practiced knowledge-sharing at the level of all fields due to the specialization variable, except for the field of “Research,” which indicated the presence of differences in favor of the Humanities. When the academic degree variable is in the field of “Teaching” in favor of “professor” degree and the variable “Experience” in the field of “Teaching and Community Service” is in favor of experience (less than 5 years and more than 10 years).

Keywords:  Teaching Staff; Knowledge Sharing; Amran University.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).