seaweeds are the novel bioactive compounds resources with antioxidant activity. the aim of this study was to evaluate the efficacy of microwave radiation on antioxidant compounds extracted from red algae hypneahamulosa and optimal extraction conditions using response surface methodology (rsm).. independent variables were time (4,8,12 min), acetone/water concentration (50%,75% ,100% acetone) and...

The development of modern information systems and the increasing popularity of the cloud service fore-Recruitment and Selection system has become a new trend for the businesses. However, the majority of the human resource agencies analyze job seekers by considering just their personality, career, interests and work values. Such an analysis makes it difficult for employers to estimate the fitnes...

Ultrasonic technology and response surface methodology (RSM) wereused for optimization of extraction of condensed tannins from the leaf, acron, gland and gall of oak. Three independent variables such as solvent percentage (%), temperature (°C) and time (min) were studied. Effect of methanol concentration was found to be significant on all responses. Optimal ultrasonicassisted extraction (UAE) c...

This study investigated the influence of workstation and work posture ergonomics on the job satisfaction of librarians in the Federal and State University libraries in Southern Nigeria. The study adopted the survey research design. The total enumeration technique was used to include the 500 librarians from the 37 Federal and State University libraries in Southern Nigeria. Descriptive statistics...

This paper examines how job displacement and physical disability suffered by a spouse affects the probability that the person’s marriage ends in divorce. According to the standard economic model of marriage, the arrival of new information about a partner’s earning capacity that an earnings shock conveys might affect the gains that the couple believes it will receive from remaining married. Shoc...

q uality of working life (qowl) is the attitudes of employees towards their job, especially their work outcomes including job satisfaction, mental health, and safety which directly influence organizational outcomes. therefore, the aim of the present study was to evaluate train drivers' qowl and determine its influencing factors. in this descriptive-analytical and cross-sectional study, qowl was...

Background: New organizational structures have changed rapidly, and progressive ladders have become short and flat, so human resources in the organization have faced various threats, including the career plateau. Lack of attention to ethical criteria as a double factor in the management process can be one of the causes of career plateau. Therefore, the present study attempted to design and expl...

aims: in general, nurses who work in department of psychiatric are in fact interacting with emotional disorders of patients once providing their care services. higher levels of job motivation and satisfaction can markedly foster service improvement. the aim of this study was to evaluate the correlation between anger and job motivation in nurses of a psychiatric hospital.   instrument & methods:...