Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

Klebsiella pneumoniae: A potential food safety risk in wild fruits and dried vegetables in Botswana

Abstract: The bacterium Klebsiella pneumoniae is ubiquitous in nature and is found on the general vegetation and their fruits. The subspecies “pneumonia” is known to cause community-acquired and nosocomial pneumonia in immune-compromised persons (Ko et al., 2002; Yu et al., 2007; Yinnon et al., 1996 and Struve and Krogfelt, 2004). Some the vegetation and wild fruits form part of the staple diet or is consumed as delicacies in Botswana. The potential presence of K. pneumoniae therefore po...

A review on Botswana coal potential from a pyrolysis and gasification perspective

Abstract: Coal pyrolysis and gasification are promising options for the future of Botswana as the country has large coal reserves with severe limitations in terms of export options. Coal characterization facilities will be required in order to harness its full potential and methods such as proximate, ultimate and chemical structure analysis (FTIR, Raman spectroscopy and X-ray diffraction techniques) were investigated. The paper presents a brief history of pyrolysis and gasification, typical ...

Orbital controls on eastern African hydroclimate in the Pleistocene

Abstract: Understanding eastern African paleoclimate is critical for contextualizing early human evolution, adaptation, and dispersal, yet Pleistocene climate of this region and its governing mechanisms remain poorly understood due to the lack of long, orbitally-resolved, terrestrial paleoclimate records. Here we present leaf wax hydrogen isotope records of rainfall from paleolake sediment cores from key time windows that resolve long-term trends, variations, and high-latitude effects on tro...

A Model to Provide a Reliable Infrastructure for Cloud Computing

Abstract: The cloud computing offers dynamically scalable resources provided as a service over the Internet. It promises the drop in capital expenditure. But practically speaking if this is to become reality there are still some challenges which is to be still addressed. Amongst, the main issues are related to security and trust, since the user's data has to be released to the Cloud and thus leaves the secured area of the data owner. The users must trust the providers. There must be a str...

Significance of Firewall and its Practicality In Corporate Environment

Abstract: In recent days possible attacks on the networks has been increased and causing huge financial loss for the various organization due to lack of proper security standards. Modern networks have several services and zones like Voice, Data, ISP networks, Access control, surveillance, DMZ zones and hosting websites etc. Proper planning and access control within each zone are important to avoid network compromise. This research details on how the network can be security standards can...

Ethical Hacking and Network Security to Prevent Network Cyber Attacks

Abstract: Over the past thirty years, “Network Cyber Attacks” has been an increasing problem in the cyber world affecting organizations and individuals – everyone in one way or the other has been exploited. Ethical hacking and network security can be used to prevent network cyber-attacks in organizations irrespective of their size. Research has proven that cyber-attacks comes as a result of network attacks that are done unauthorized without the system administrators or users of th...

Viability of Cloud Computing Adoption by Government of Lesotho at Thaba-Tseka Town

Abstract: Cloud computing is one of latest computing paradigms where computing resources like processors, hard-drives, data warehouses, servers, operating system and applications are rented to the users in pay-per-use manner and are accessed through the Internet. Cloud computing is one of Information Technology solutions that reduces infrastructure costs for governments and small to medium businesses, and enable them to access latest software versions and hardware resources. Government ...

Study on Employee Information Security: Human Issue: Gaborone University College of Law and Professional Studies (GUC)

Abstract: The purpose of the study was to establish the level Information Security among End User in order to address the Human issue and its impacts on Information Security (IS) in organizations. Human errors likely to result into excessive security breaches than technical vulnerabilities (Hinson, 2003). Notable human errors include, deleting wrong file by mistake, entering wrong value, pull out the wrong plug by mistake and configuration mistakes can leave the network ports open, firew...

MANUSCRIPT FOR PUB

The pharmaceutical develops, produces, and markets drug licensed for use as medications. They are subjected to variety of laws and regulations of the government regarding the patenting, testing, pricing and ensuring safety and efficacy and marketing of drugs. The study of sorption of rifampicin in the leaching to contaminate the under-ground water has been the concerns of researchers in the world and many results and finding has been put in place. The environment is increasingly being recogni...

DESIGN AND NETWORKING OF TYPICAL OFFICE BUILDING 1

A computer network comprises of a group of computers connected to each other for different purposes. In this way, resources and data can be exchanged between computers. Recent years have seen a rapid advancement in computer technology, which has led organisations to look for more resilient networks that can support both their present and future applications (Al-Bayati, 2013). Strong networking and thoughtful office building design go hand in hand in today's workplace to enhance organisational...

MATHEMATICAL BELIEFS, WORKING MEMORY CAPACITY, AND MATHEMATICAL CREATIVITY IN PROBLEM SOLVING OF THE STUDENTS

Introduction In Mathematics class in every discussion or lesson to be tackled, there is a part where students or learners tend to be exposed to problem-solving. An activity that stimulates those learners to understand today's topic or access their mastery of the lesson that the teacher teaches. The ability to solve problems is a basic life skill and is essential to our day-to-day lives, at home, at school, at home, and at work. We solve problems every day with or without thinking about how we...

Rethinking Journal classification: Rethinking Journal classification in the twenty-first century in the interests of a higher quantum of scientific output

In this paper, we challenge Jeffrey Beall’s still dominant in the psyche approach to journal classification and some other ill-conceived approaches to journal classification, and attempt to show why such reductionist views are harmful to the healthy growth of science. While scientific fraud in any form must be horsewhipped and must not be exonerated or absolved at any cost and under any circumstances, journal classification and all other attendant issues and factors impacting and affecting ...

Exploring Hematological and Biochemical Disparities in Same-Sex and Opposite-Sex Females: A Cross-Sectional Twin Study in a Ghanaian Population

There are sex-dependent differences in hematological and biochemical variables in adulthood attributed to the predominant effects of testosterone in males and estrogen in females. The Twin Testosterone Transfer (TTT) hypothesis proposes that opposite-sex females may develop male-typical traits due to exposure to relatively higher levels of prenatal testosterone than same-sex females. Additionally, prenatal testosterone exposure has been suggested as a correlate of current circulating testoste...

Evolution of a Polydnavirus Gene in Relation to Parasitoid–Host Species Immune Resistance

Abstract: CrV1, a polydisperse DNA virus (polydnavirus or PDV) gene contributes to the suppression of host immunity in Cotesia genus parasitoids. Its molecular evolution was analyzed in relation to levels of resistance in the sympatric host species. Natural selection for nonsynonymous substitutions (positive Darwinian selection) was observed at specific amino acid sites among CrV1 variants; particularly, between parasitoid strains immune suppressive and nonimmune suppressive to the main resi...


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