Open Access Original Research Article

Academic Stress among Tertiary Level Students: A Categorical Analysis of Academic Stress Scale in the Context of Bangladesh

Sharon Campbell Phillips, Deb Proshad Halder, Wahiduzzaman Hasib

Asian Journal of Advanced Research and Reports, Page 1-16
DOI: 10.9734/ajarr/2020/v8i430203

The main objective of the research is to make a comparative study among the five categories of stress a student of a tertiary level faces or is supposed to face based on the questionnaire designed by and make a categorical study for analysis of Academic Stress Scale among the students’ state of stress prevailing in that level of study in Bangladesh. A random sample of 44 students had been selected from different tertiary level institutions throughout the tertiary level institutions of Bangladesh to conduct the research. Among the 44 respondents, 23 were male whereas 21 were female respondents.  A quantitative method has been used in gathering the data by the use of Ordinal Scale (ASS) and mixed methods had been used in analyzing the data.  For the purpose of this study, questionnaires had been distributed to students who had been and were receiving tertiary education (the tertiary level student has been dignified as the students in the ranges from Honors First year to Honors Third year in Bangladesh). The responses were classified and stratified in order to measure frequency and then the findings were quantitatively and qualitatively analyzed to rate the level of stress the students feel in the tertiary level of Bangladesh.

Open Access Original Research Article

Occupational Health and Safety Practices Assessment in Damietta Port, North Egypt

Mokhtar S. Beheary, Ahmed Abdelaal, Samira M. Matar

Asian Journal of Advanced Research and Reports, Page 17-27
DOI: 10.9734/ajarr/2020/v8i430204

Occupational, health and safety system (OHS) is a sensitive item for each organization. Health and safety is part of the business, just like production and quality. Therefore, it should be managed in the same way as other aspects of business. This study investigated the safety culture and behavior between the labors, assess the implemented safety system and evaluate the surround environmental workplace. Field data were collected from different sources, i.e. questionnaire, interview, personal observation and documentary evidence. From collected results, the occupational health and safety measures implemented in some workplaces are not sufficient and some workers are dissatisfied with the current occupational health and safety measures. Health and safety should be the concern of each worker in the organization and this can only be achieved when serious training and education is carried out. Also, monitoring, inspection and evaluate existing health and safety measures on regular basis is very important for improvement and control the risk to achieve occupational health for the port man-power.

Open Access Original Research Article

Bayesian Analysis of Weibull-Lindley Distribution Using Different Loss Functions

Innocent Boyle Eraikhuemen, Olateju Alao Bamigbala, Umar Alhaji Magaji, Bassa Shiwaye Yakura, Kabiru Ahmed Manju

Asian Journal of Advanced Research and Reports, Page 28-41
DOI: 10.9734/ajarr/2020/v8i430205

In the present paper, a three-parameter Weibull-Lindley distribution is considered for Bayesian analysis. The estimation of a shape parameter of Weibull-Lindley distribution is obtained with the help of both the classical and Bayesian methods. Bayesian estimators are obtained by using Jeffrey’s prior, uniform prior and Gamma prior under square error loss function, quadratic loss function and Precautionary loss function. Estimation by the method of Maximum likelihood is also discussed. These methods are compared by using mean square error through simulation study with varying parameter values and sample sizes.

Open Access Original Research Article

Membrane Integrity Test for Spermatozoa in Simmental Bull Liquid Semen Using the Addition of Gentamycin and Sweet Orange Essential Oil in the Extender

Sukma Aditya Sitepu, Julia Marisa

Asian Journal of Advanced Research and Reports, Page 42-46
DOI: 10.9734/ajarr/2020/v8i430206

Aims: This study aimed to determine the quality of Simmental Bull liquid semen through laboratory tests, including the percentage value of membrane integrity Spermatozoa with the addition of gentamycin and sweet orange essential oil to tris yolk extender.

Methodology: The material used in this research is Simmental Cattle bull fresh semen, tris yolk extender, gentamicin, and sweet orange essential oil. Tris yolk extender was prepared with Tris (hydroxymethyl aminomethane) (3.32 g), citric acid (1.86 g), fructose (1.37 g), glycerol (6 ml), egg yolk (20 ml), aquades (100 ml). The experimental design used in the study was a nonfactorial Complete Randomized Design with five treatments and five replicates. The treatment given is the addition of sweet orange essential oil 0%, 0.25%, 0.5%, 0.75% and 1%. The parameter observed was the evaluation of membrane integrity before equilibration and after equilibration.

Results: The results showed that the percentage of membrane integrity in Simmental bull liquid semen continues to increase with the addition of sweet orange essential oils. The results showed that the addition of sweet orange essential oil as much as 0% produced a membrane integrity percentage after equilibration of 63%, adding 0.25% resulted in 68%, adding 0.5% yielded 70%, adding 0.75% yielded 75% and adding 1% resulted in 79%.

Conclusion: The best percentage of membrane integrity in Simmental bull liquid semen was the addition of gentamicin and sweet orange essential oil in the tris yolk extender at the level of 1%.

Open Access Original Research Article

Contribution of Litterfall to Aboveground Net Primary Production in Acacia hybrid Plantation, Northeast Vietnam

Tran Van Do

Asian Journal of Advanced Research and Reports, Page 47-53
DOI: 10.9734/ajarr/2020/v8i430207

Carbon input to forest ecosystem is mainly from Net Primary Production (NPP), therefore estimating NPP becomes important to understand the global carbon cycle. In this study, allometry for aboveground biomass increment (ΔAGB) and litter trap technique for litterfall (LF) were used for estimating aboveground NPP in Acacia hybrid plantation, Northeast Vietnam. The experiment was conducted in a plot of 300 m2 (15×20 m) established in a 21 month old plantation and conducted in a duration of one year. Data were collected in 3 month intervals with a total of five field-measurements. The results indicated that LF and ΔAGB were seasonally dependent. Litterfall was highest (3.38 g m-2 day-1) during September-January (winter) and lowest (0.61 g m-2 day-1) during March-June (early summer). While ΔAGB was highest (7.7 g m-2 day-1) during June-September (summer) and lowest (2.3 g m-2 day-1) during January-March (winter). Total LF was 7.27 tones ha-1 year-1 and ΔAGB was 18.94 tones ha-1 year-1. The total aboveground NPP of Acacia hybrid plantation was 26.31 tones ha-1 year-1. It is concluded that LF plays an important role in soil nutrient cycling in Acacia hybrid plantation.