Abstract:Empirical and theoretical treatises have established the strategic importance of Human Resources Management (HRM) Practices to the achievement of organization’s objectives and Employees\' Career Development. However, inherent challenges like Recruitment and Selection practices, Gender Inequality, Leadership Succession, Organizational Support, as well as Learning and Development have orchestrated poor career development in some organizations. The divergence in aspiration, conflicting and political affiliation have implications for Employees\' Career Development in the Nigerian National Petroleum Corporation (NNPC) of which HR practices could harmonize despite the differences. This study therefore examined the relationship between selected HRM practices on the Career Development of the employees of NNPC. The study adopted a descriptive survey research design. The sample size of 1,235 was randomly drawn from a target population of 2,302 employees from the Corporate Headquarters and PPMC, Abuja and NAPIMS, Lagos using Slovin method. The staff was stratified into top, middle and lower level (Supervisors) as respondents. A research instrument titled “Human Resources Management Practices and Employees’ Career Development” was adopted and validated. The data were analyzed using Partial Least Square Structural Equation Modeling (PLS-SEM). The result indicate that Organisation Support and Gender inequality practices are not significantly related to Employee Career Development in Nigerian National Petroleum Corporation, while Learning and Development practices, Recruitment and Selection practices, and Leadership Succession practices had significant effects on Employee Career Development. It was therefore recommended that NNPC should adopt an integrated approach toward formulation and implementation of HRM practices.
Abstract:Bovine mastitis is an inflammation of mammary glands and secretory tissues, that reduces the milk volume, alters its taste and the chemical and physical characteristics of it. Numerous studies have demonstrated that the main pathogens that cause this pathology are Staphylococcus spp. However, data previously published about the prevalence of Staphylococcus spp species and virulence factors in Colombia are limited. Although phenotypic studies help to identify and understand the distribution of microorganisms implied in this etiology, approaches based on DNA can have a higher utility for this proposal. The objective of the present research is to determine the genes frequency that codify for thermostable nuclease and coagulase in Staphylococcus spp strains, isolated from milk samples come from teats affected with certain bovine mastitis degree. Materials y methods. In this research, we employed 70 Staphylococcus spp strains, for the analysis on the molecular level of 16S rRNA and the presence of nuc y coa gens. Results. From the 70 strains, 57 were identified through rRNA fragments sequencing 16S; 63.15% belonged to the group of coagulase-positive Staphylococcus (CPS) y 37.84% to Coagulase-negative Staphylococcus (CNS). The results of sequencing showed a prevalence of 80% and 57.1% of the nuc and coa genes respectively. In Staphylococcus aureus, it was determined the presence of both gens in a 45.7%. Conclusions. Data indicate that although the CPS presence represents the main causing factor of this pathology, the high prevalence of CNS must be taken as a potential risk in bovine mastitis. nuc and coa gens distribution suggests that these characteristics are mainly found in S aureus, that is why they, as a group, are considered an important molecular tool for the diagnosis of this microorganism
Abstract:Global trade has increased the growth proportionally in many sectors during WTO regime. Neoliberal Agriculture has become competitive. Farmers welfare, Food security, Farm income, Poverty and trade are a key international issues debatable. The present paper focuses Global farmer’s welfare and agricultural trade developments among the continents and across the world. The study period is from 1990-91 to 2018-19. CAGR, coefficient of variation, moving average method, terms of trade and elasticity were used to achieve objectives. The results show that Asia occupied more agricultural land in the world followed by Oceania, Africa, America and Europe continents during 2018. The Per capita agricultural land was 0.63 ha in the world. China, United States, and Australia shared the largest percentage of agricultural land that accounted to be 11.01%, 8.45% and 7.49% to the world. But, Mongolia (35.78), Australia (14.41), and Kazakhstan (11.79) have shown the highest per capita agriculture land. Poverty rates in many nations are the highest in the world. Sub-Saharan Africa, South Asia, and, Middle East and North Africa are the regions mostly facing the poverty in the global population. 40.2% of population in the Sub-Saharan Africa has been facing poverty since 2018. While 15.2% of South Asian population has been suffering from poverty in 2014. All countries in the world have shown the positive growth rate of total agricultural exports during the study period. Brazil, Spain and China were shown the highest significant growth potential of agricultural exports, whereas China, Canada and USA has shown the highest growth rate of agricultural imports in the world during the study period. America was exporting more quantity of cotton, rubber & opium while importing tobacco. Asia was exporting more quantity of sugar crops while importing the cotton, opium, rubber & tobacco. Africa was exporting more quantity of cotton, rubber while importing the sugar crops, cocoa, tobacco. Europe was exporting more quantity of rubber, opium, tobacco while importing the cocoa. More quantity of opium by America and Europe; sugar crops by Asia were exported with the highest price in the world. Terms of trade was favored for sugar crops, opium &coffee; in the Africa; cocoa, opium, rubber, in the Europe; and rubber in the America. Export price elasticity of sugar crops, cotton, opium, rubber in the America; cotton, rubber, tobacco in the Africa; and sugar crops, opium, rubber, tobacco in the Europe was marginally greater than their imports. Government must give prominence in framing price policies for the cash crops. Government should take action against the unfair competition existing in the international markets of cash crops especially for opium and tobacco. The study found that even During WTO modern period also developing countries and continents; Africa, Latin America and South America trade economies more depend on agriculture. It is necessary to address the challenges of societal, demographic, and political drivers of poverty. Developing countries welfare is possible only through Farmers’ Welfare through modern agriculture. Multilateral trade relationship with high CAGR countries would help in smooth trade of agricultural crops.
Abstract:Hepato-cellular carcinoma (HCC) is the most common type of liver cancers, most cases of HCC are secondary to a viral hepatitis infection. Many studies demonstrated the promising properties of macro-algae extracts, as anticoagulant, anti-proliferative, antiviral and anti-microbial. Synthesis of nanoparticles using biological entities has great interest due to their unusual optical, chemical, photo-electrochemical and electronic properties. Synthesis and assembly of nanoparticles would benefit for the development of clean, nontoxic and environmentally acceptable products. \n\nThis work aimed to investigate the alterations in expression of three hepato-cellular carcinoma related genes induced by extract of Ulva algae and its nanoparticles. These genes are Aldo-KetoReductase 1B10 (AKR1B10), Inhibitor of growth protein 3 (ING3) and Forkhead Box O1 (FOXO1). The results showed that the expression levels of AKR1B10 and ING3 genes in liver tissues of NDEA-exposed mice treated with high dose of Ulva extract as well as low and high doses of Ulva extract nanoparticles were increased significantly compared with those in mice exposed to NDEA alone. Also, the expression level of FOXO1 gene was down-regulated in liver tissues of NDEA-exposed mice treated with high dose of Ulva extract as well as low and high doses of Ulva extract nanoparticles. \n\nFurthermore, the rate of DNA fragmentation in NDEA-exposed mice treated with high dose of Ulva algae extract as well as low and high doses of Ulva extract nanoparticles was decreased significantly compared to those in mice exposed to NDEA only. \n\nIt is concluded that the protective role of Ulva algae extract could be attributed to the polysaccharides as well as the flavonoids and terpenoids compounds that were identified in the algae extract. It has been found that these compounds have an effective role in increasing the antioxidant enzymes and the efficiency of the immune system.
Abstract:Cocoa pod husk (CCP) was utilized as a multitasking material: its extract acting as a reducing agent to synthesize silver nanoparticles (AgNPs) and its residue serving the fabrication of activated carbon. The formation of AgNPs was monitored by UV-Vis Spectroscopy at the wavelength range of 400500 nm, with the optimized conditions involving the synthesis time of 180 minutes, the volume ratio of AgNO3 solution/CCP extract of 3/2, the AgNO3 concentration of 1.25 mM and the stirring rate of 300 rpm at room temperature in the presence of the light illumination. The X-ray diffraction (XRD) and the high-resolution transmission electron microscopy (HRTEM) results revealed the face-centered cubic structure of AgNPs with a highly crystalline and the particle size of 2030 nm. The highly negative potential of the AgNPs solution (−34.6 mV) evidenced a good colloidal nature, long-term stability, and high dispersion of AgNPs due to negative-negative repulsion. The Fourier transform infrared spectroscopy (FT-IR) demonstrated the presence of flavonoids, polyphenolics, and alkaloids components in CCP extract which can act as the reducing agents for AgNPs formation. The antibacterial effect of AgNPs was evaluated on five types of bacteria by implementing the minimum inhibitory concentration test (MIC, 10.1 μg/mL) and the zone of inhibition test (d > 13.0 mm). Besides, the cocoa residue obtained after the CCP extraction was used to fabricate activated carbon with the point of zero charge (pHpzc) of 7.7, a BET value of 603.3 m2/g, an average pore diameter of 14.2 Å, and a pore volume of 0.303 cm3/g. Its adsorption efficiency on persistent organic pollutants (POPs) was observed in the following order: Methyl blue > Methyl orange > Rhodamine B > Cinnamic acid.
Abstract:The implication of mobile ad wearout on consumer engagement and loyalty with the mediating effect of irritation and intrusiveness was examined in this study. Though, mobile ads effectiveness has attracted much attention, but the studies examine the mediating effects of irritation and intrusiveness in the relationship between mobile ad wearout and consumer reactions towards a brand are scant. In all, 394 valid responses from university students in North Cyprus Universities were analyzed to test the formulated hypotheses, using partial least square- structural equation modeling (PLS-SEM). The findings showed that perceived mobile ad wearout has a significant relationship with consumer engagement and loyalty, as well as triggering irritation and intrusiveness. In addition, perceived irritation was found to lower consumer engagement and loyalty, while intrusiveness was found to lower consumer engagement. The perceived irritation and intrusiveness were found to significantly mediate the relationship between perceived mobile ad wearout and consumer reactions towards a brand. Finally, managerial implications were provided.
Abstract:The experiment was carried out, during 2020, in the stored grain laboratory of College of Agriculture Bahauddin Zakariya University, Bahadur Sub Campus, Layyah. The study based on checking the insecticidal potential of DE and tobacco extracts as biopesticide (Bio nicotine pesticide) against R. dominica, C. ferrugineus, L. paeta and T. granarium. Different factors have been studied like mortality and progeny emergence of tested substances against these four species. The novelty of this experiment is that such bioassay was not conducted in detailed previously in Pakistan. For this purpose, DE was tested with three concentrations of Bio nicotine pesticide (5, 2.50 and 1.25 mg/kg) on tested grains viz. wheat, rice and maize. Means were separated by Tukeys LSD test and results regarding mortality exhibited that DE alone has less toxic effects, whereas, Bio nicotine pesticide alone and in combination with DE showed maximum mortality of given species upto 168 hrs. The combine use of both substances enhanced the insecticidal means upto 98%. In crux, DE along with biopesticide specially against primary stored grain insect pests is not only economically useful but safer for grains and can be a good part of Integrated Pest Management Program.
Abstract:Though, the call for environmental protection is on the increase, the ability of the hotel consumersï¿½ to pay for green product is still a challenge for tourism industry. This study sought to expand existing understanding of consumerï¿½s environmental concern and knowledge in relation to intention to visit green hotels by developing and testing an extended social exchange theory. Specifically, environmental knowledge and concern were incorporated into the social exchange theory to understand comprehensively consumerï¿½s perceived consumption values with respect to their intention to visit green hotels. Results from the partial-least square structural equation modeling from a sample of 401 hotel guests in Nigeria showed that the proposed theoretical framework has a strong ability to determine intention and identified significant impact of environmental knowledge, concern and consumption values in generating intention, as well as the significant mediating effect of perceived consumption value in the model. The finding from this study provides additional perspective into consumersï¿½ decision-making processes, which can help hotel managers in the development and execution of hotel operations that would account for eco-friendly purchase behavior.
Abstract:Herbal remedies are significant besides the primary therapy in traditional organization of medicine has been cast-off in medical practices since prehistoric periods. Plants which contain phytochemical constituents are accountable for homoeopathic actions. In present study ethanolic extracts of Peach were assessed for phytochemical components. Tannins, Alkaloids, Carbohydrates, Steroids, Saponins, Quinones, Phenols and Oils were found positive among all the tested germplasm of Peach, whereas there is diversity of phytochemicals were found with reference to Flavonoids, Coumarins, Glycosides, Cardiac glycosides, Phlobtannins and Anthraquinones. As compared to others genotypes of Selected peach A2, Flame crust, 4.5, 669 No.2, Florida king, Early grand and Spring crust have all the bioactive compounds except anthraquinones, while coumarins was found negative in Peach early grand. Results for alkaloids and terpenoids were further confirmed through TLC which showed that alkaloids were positive in all the tested germplasm and showed highest Rf value in Peach early green (7.0875), while terpenoids presented highest Rf value in Peach No.2 (0.8625, 0.825 and 0.75) as compare to other germplasm although it was conclude that Peach early green have large amount of alkaloids and No.2 have rich number of terpenoids.
Abstract:Malignant Melanoma is the most dangerous type of skin cancer that influences all over the world 2-3 million people every year. For the early diagnosis of melanoma dermoscopic skin image is taken and it is exposed to several process. In this work top hat transform, dilation, median filter and Unsharp masking are done for pre and post processing. The image segmentation is done by Otsu’s method and morphological operations. The features are extracted by ABCD and FOS feature extraction techniques. The extracted features are separately given to the classifiers and then combined together to test the classifiers performance. Classification is done by Support Vector Machine (SVM) and Bag of Visual Words (BOW) classifiers. The performance measures are analyzed based on classifier output for individual and combined feature inputs. Accuracies of SVM classifier are 70%, 86.7% and 96.7% for ABCD, FOS and ABCD + FOS features respectively. Accuracies of BOW classifier are 96.2%, 96.5% and 97% for ABCD, FOS and ABCD + FOS features respectively. Better accuracy occurs in BOW classifier for combinational feature inputs.