Archives-December 

The aim of the present paper is to obtain two summation formulae based on half argument involving hypergeometric function. The results derived in this paper are of general character and are believed to be new.

A plea is made for the recognition of a disorder of the colon, commonly encountered in the elderly, which is characterized by elongation (and also by dilatation) of the colon, especially the sigmoid. It may give rise to symptoms which suggest a diagnosis of carcinoma. The condition is believed to be acquired, and is an important aetiological factor in the development of sigmoid and, less frequently, of caecal volvulus. Three main colonic transfer forms were identified: slow transit in the proximal colon (STC), normal proximal colonic transit with anorectal retention (NT-AR), and rapid proximal transit ± anorectal retention (RT)

The congenital abnormalities of the aortic arch derived vascular and ligamentous structures are vascular rings. They encircle trachea and esophagus at variant degrees which results in respiratory or feeding difficulties in children. An abnormality of pulmonary arterial system results in airway compression is known as a sling. CT gives excellent spatial and temporal resolution coma a wide field of view, multi planner reconstruction capabilities and simultaneous evaluation of the airway. A brief discussion of the embryology of the branch vessels and aorta is followed by discussions and illustrations of some uncommon and common vascular rings with critical informations required by surgeons.

The cutting forces required for machining of a material are important factors in production design that need to be evaluated carefully for newly developed materials. The cutting forces directly influence the power requirement of the machine tool, tool deflection and tool wear, among other things. In this study a computational model will be developed for prediction of cutting forces in end milling of metal matrix composites. Modeling of cutting forces in milling involves evaluation of chip load, instantaneous shear angle, strain rate and temperature dependent shear stress. The computational model will be validated against experimental data from measurements of cutting forces during end milling of composites under different conditions. The validated model will then be used to conduct a parametric study on the influence of feed rate (f), depth of cutting (a), cutting speed (v), and other cutting parameters on the cutting forces generated during the end milling of composites.

This study argues for a third wave feminist interpretation of Daughter of Fortune and The House of the Spirits by Isabel Allende as two significant texts that take multiple feminist perspectives into consideration and oppose certain patriarchal systems. As will be argued, the problems faced by the female characters that relate to their personal feminism cannot be explored sufficiently by assuming that they are tossing aside their liberties. Rather, the characters and their stories are best examined by exploring how each woman can work through her problems in ways that allow her to maintain her feminist position.

The purpose of this paper is to identify competitive marketing strategies used by home-based businesses in the northern and southern suburbs of Pietermaritzburg, to help the businesses focus on the target markets they can best serve to achieve a competitive advantage. The researcher adopted an exploratory study in which both qualitative and quantitative research methods were used. The target population for this study comprised of 118 home-based businesses, operating in various industries, in the northern and southern suburbs of Pietermaritzburg. The study enabled an insight into the various types of marketing strategies employed by home-based businesses and the effectiveness of the identified marketing strategies. Through the study it was possible to determine the home-based business owner's knowledge of marketing strategies and whether they were adopting the correct strategies for their businesses in order to achieve a competitive advantage. The major findings revealed that the main challenges were the lack of finance as well as lack of marketing knowledge and skills which inadvertently had a negative impact on the choice of marketing strategies being adopted as the majority of home-based businesses relied mostly on word of mouth marketing and networking. Factor analysis carried out in the survey enabled the identification of latent factors that could affect adoption of marketing strategies. The results of the findings led to the development criteria that would enable home-based to be able to decide on the marketing mix strategies that would be suitable for their target markets.

In this paper we derive the formulate for Tarig transform of partial derivatives and apply them to solve five types of initial value problems. Our purpose here is to show that the applicability of this interesting new transform and its effecting to solve such problems.

Soliton in an optical fiber, a fine example of the profound impact technology provides a mathematical concept in real-world. There soliton theory, the first in 1934 by John Scott Russell queries. Solitary waves in search of nature, as is done in the realm of speculation. Soliton waves may also exist in biological systems, so that in 1979, but Henry Tuck, who was then a member of the University of British Columbia equations to study the concentration of potassium and calcium in the modeling of the nervous system to filtrate. When the system is in a local increase in potassium can cause problems - which happened during the passage of a nerve stimulator is probable - that of the equations, and the calcium reduced the waves increased potassium in a single filtrate moving were foretold .In the near future, solitary waves can lead to innovations in technology.

As well all know, residential buildings and houses in Malaysia are experiencing overheating of roof space problems owing to unsuitable selection of roofing materials and the systems as well. Subsequently, the indoor thermal comfort of the building is deficiently affected, particularly for low rise buildings where the roof is representing around 70% of heat gain. The thermal performance of a building is affected by the solar absorbance of roof, during a clear sky conditions up to 1kW/m2 of radiation can be incidental on a roof surface and between 20% and 90% of this radiation is naturally absorbed. This paper is anticipated to reassess the roofing materials and roof colours employed in Malaysian building and establish whether they are appropriate for the hot humid climate zone. The study aims to review the thermal performance of roofing materials in Malaysia. Roof colors on some existing buildings and home buyers preferred roof tiles’ colors have been determined. A survey was conducted among home buyers in Malaysian to determine the most preferred roofing colors. The survey results suggest that blue and brown are the most preferred ones followed by red. The study also revealed that 70% of households in Malaysia are using air-conditioning. The observation survey on some existing buildings revealed that 90% of roof tiles are red followed by 10 % black color

There are several factors which play an important role in the occurrence of a disease in an individual as well as in determining the result of a treatment procedure. Variable gingival dimensions is one such factor which has been highlighted in the recent ongoing researches. It is now believed that the assessment of gingival parameters; width, thickness, papilla height, must be done on a routine basis as determining these various components play an important role in the treatment planning for orthodontics, root coverage, extractions, implant placement and other restorative and periodontal procedures. Therefore, it is important to take into consideration the differences in dimensions and forms of gingival tissues during treatment planning. Keywords: gingival dimensions, periodontal procedures, assessment