Open Access Original Research Article

A Study on Generalized p-Oresme Numbers

Yüksel Soykan

Asian Journal of Advanced Research and Reports, Page 1-25
DOI: 10.9734/ajarr/2021/v15i730410

In this paper, we introduce the generalized p-Oresme sequences and we deal with, in detail, three special cases which we call them modified p-Oresme, p-Oresme-Lucas and p-Oresme sequences. We present Binet’s formulas, generating functions, Simson formulas, and the summation formulas for these sequences. Moreover, we give some identities and matrices related with these sequences.

Open Access Original Research Article

Academic Stress and Coping Strategies among Postgraduate Students: Comparative Study of Universities in Imo State, Nigeria

J. C. Ezelote, Asuzu Eleanor, Akam Ngozi, Mbachu Joy

Asian Journal of Advanced Research and Reports, Page 26-42
DOI: 10.9734/ajarr/2021/v15i730411

Aims: The study aimed to identify and compare the prevalence of stress among postgraduate students in Imo State University (IMSU)and Federal University of Technology, Owerri(FUTO)using General Health Questionnaire-12 (GHQ-12), to identify and compare their sources of academic stress using Postgraduate Stressor Questionnaire(PSQ); and to identify and compare the measures the students were using to cope with stress using Cope inventory.

Sample: All the postgraduate students admitted in 2015/2016 session in FUTO and IMSU were sampled for this study, with 10% and 8% attrition rates in IMSU and FUTO respectively.

Study Design: This is a comparative cross sectional study between the postgraduate students in IMSU and FUTO.

Place and Duration of Study: Imo State University (IMSU) and Federal University of Technology, Owerri (FUTO), between August 2017 to November 2017.

Methodology: All the postgraduate students admitted in 2015/2016 session in FUTO and IMSU were used for this study (121 were from IMSU while 832 were from FUTO). PSQ, GHQ-12 and COPE Inventory were for data collection used to collect data. Chi square was used to test the hypotheses and the significance level was p≤0.05.

Results: It was observed that 79% of FUTO students were under eustress while 36% of those at IMSU were under eustress. Majority (80%) of FUTO respondents were using positive coping strategies compared to 36% of IMSU students using positive coping strategies. There was significant difference in the prevalence of stress and coping strategies among the students in the two universities (<0.001*).

Conclusion: Academic stress leads to many physiological and mental illnesses. It results from the stressful situations that persist over time and produces negative health outcomes. Postgraduate students in Nigeria face a number of pressures that are distinct from the stresses that undergraduates face. If it is not managed with positive coping strategies it will leads to wearing effects on people.

Open Access Original Research Article

Impact of Soil Pollution on Increasing Temperature in Indonesia

St Fatimah Azzahra, Faradiba Faradiba

Asian Journal of Advanced Research and Reports, Page 43-49
DOI: 10.9734/ajarr/2021/v15i730412

The current increase in pollution is of great concern because it will have an impact on various aspects of life. The increase in pollution results in global warming in the form of earth's temperature. This study aims to examine the effect of soil pollution on increasing temperatures in Indonesia.The design of this study is descriptive quantitative. This study uses 2018 Village Potential (Podes) data sourced from the Central Statistics Agency (BPS). This study uses multiple linear regression by looking at soil pollution factors, temperature, and involving other factors as supporting factors. Temperatures in Indonesia range from 24.5oC-28.3oC. Due to soil pollution, the temperature increased by 0.05oC and specifically on the island of Java, the temperature increased by 0.157oC. The existence of land burning activities also increases the temperature by 0.07oC and in Java by 0.144oC. Soil pollution has a positive effect on increasing temperatures in the territory of Indonesia by 0.055oC. Java Island as the center of government and economy has a big role in generating pollution. Pollution on the island of Java resulted in an increase in temperature of 0.157 oC. The addition of a control variable in the form of community behavior in burning fields, will affect the nutrients in the soil and also exposure to smoke will interfere with the health of living things, apparently contributing to an increase in temperature of 0.01oC.

Open Access Original Research Article

Comparative Analysis on the Antimycotic Effect of Azadiracta indica and Jatropha curcas on Curvularia Species

E. E. Ameh, A. A. Orukotan, A. J. Dadah, A. A. Abdullahi

Asian Journal of Advanced Research and Reports, Page 50-57
DOI: 10.9734/ajarr/2021/v15i730413

This study was carried out to determine the phytochemical properties and the antimycotic effect of Jatropha curcas and Azadiracta indica leaves on Curvularia species. Isolation and identification of the fungal isolates were carried out using standard conventional method. Maceration technique was employed for crude extraction from the plant. The phytochemical tests were carried out using standard conventional methods. Agar well diffusion method was used to determine the susceptibility of the isolates.  Phytochemical tests of A. indica revealed the presence of flavonoids, phenols, saponins, tannins, phenols, and glycosides.  Jatropha curcas showed the presence of glycoside, tannins, saponin steroids and phenols. The antifungal activity of Azadiracta indica and Jatropha curcas on Curvularia species, the ethanol extract of Azadiracta indica showed more antifungal activity with highest percentage inhibition of 50.56±0.84c at 20% extract concentration, and Aqueous extract was 40.00±0.55b at 20%. The aqueous extract of Jatropha curcas showed more antifungal activity of 50.55±0.05c at 20% while that of ethanol extract was 35.55±0.54a at 20% extract concentration. The synergestic antifungal activity of the plants revealed that ethanolic extract had more antifungal effect of 57.54±0.56c at 20% concentration and that of the aqeous extract showed more activity of 45.89±0.50b at 20%. There was significant difference (P<0.05) between the ethanoic and aqueous extracts of the plants. The Minimum Inhibitory Concentration (MIC) and Minimum Fungicidal Concentration (MFC) of Jatropha curcas on Curvularia Species showed the MIC at 250 mg/ml extract concentration for both ethanol and aqueous extracts against Curvularia Species. The ethanol and aqueous extract of Jatropha curcas occurred has no fungicidal effect against Curvularia Species.

Open Access Original Research Article

Seroprevalence and Molecular Detection of Rift Valley Fever in Sheep, Gezira state, Sudan (2017-2019)

Asia M. Elhaj, Adam D. Abakar, Ahmed A. Mohamedani, Elamin A. Ahmed, Tamador M. A. Elhassan

Asian Journal of Advanced Research and Reports, Page 58-73
DOI: 10.9734/ajarr/2021/v15i730414

Aims: Livestock is the largest subsector of the Sudanese domestic economy and is a growing contributor to exports. Rift Valley fever (RVF) is an economically important arthropod-borne virus disease in Africa, primarily affecting sheep, goats, and cattle. RVF causes paramount loss in sheep industry in Sudan. The objective of this study was to detect RVF in sheep.

Methodology: Five hundred and fifty-six sheep blood Serum from inoculated animals was collected from six study areas in the Gezira (Sudan)was evaluated for the presence of neutralizing antibodies using the diagnostic kit (ID. Vet.) for detecting antibodies directly against the RVFV nucleoprotein (NP) in serum and Reverse transcription (RT)-Polymerase Chain Reaction (PCR) protocol was used as standard test to diagnose and confirm RVFV among studied animals.

Results: The ELISA test indicated that the highest Seroprevalence was found at Shikaira (38%), while samples from Albasabeir, Wad alnaem and Umalqura tested positive for antibodies against RVFV by 15%, 10% and 9% respectively. The lowest Seroprevalence found at Wad anor and Shabona (5% and 2%). The overall seroprevalence was 14.2% in the study sites, there is no significant difference among the six study sites with respect to seroprevalence. The Rt-PCR provided more sensitive and specific detection of RVFV in serum samples (sensitivity= 95% specificity = 80%).

Conclusion: The results from this study showed the presence of anti-RVFV antibodies in all   study sites, suggesting that RVFV is actively circulating among sheep in Gezira state. The high seroprevalence of RVFV infection in Gezira state indicates its endemicity. Test validation using ROC analysis was able to distinguished between ELISA (actual class) and the PCR (predicted class) and the AUC = 0.79 which indicate that the PCR is gold standard test. Thus Rt-PCR used in the present study is reliable to detect precisely the M segment of RVFV and it is valuable for Wide area survey, among both sheep and Aedes spp. Targeting the prevailing genotypes of RVF-M segment, especially at high-risk areas and as a confirmatory test that should be considered by reference laboratories in the region.