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Search Results: 1 - 10 of 578 matches for " Wellington; "
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Problems Facing Small and Medium Size Contractors in Swaziland  [PDF]
Wellington Didibhuku Thwala, Mpendulo Mvubu
Journal of Service Science and Management (JSSM) , 2009, DOI: 10.4236/jssm.2009.24042
Abstract: The paper explores the problems facing Small and Medium Size Contractors in Swaziland. The construction sector in Swaziland is not only a significant source of direct employment but also a sector which contributes, through its wide range of projects and operations. The paper will also look at the current government initiatives that had been put in place to address the challenges and problems in order to ensure that contractors are successful. There is a high failure rate among small and medium size contractors in Swaziland. These contractors fail for a variety of reasons ranging from lack of adequate capacity to handle the uniqueness, complexity and risks in contracting, lack of effective management, lack of business management, poor record keeping and inadequate technical, financial and contract managerial skills. Drawing on research on small and medium size contractors, the paper used both secondary and primary litera-ture. 100 questionnaires were distributed to different role players in the construction sector in Swaziland. The response rate was eighty seven (87) percent. The paper reveals that the most problems facing small and medium size contractors in Swaziland is lack of access to finance and late payment by government. The paper closes with recommendations and key lessons for the future.
The interactive effect of phosphorus and nitrogen on "in vitro" spore germination of Glomus etunicatum Becker & Gerdemann, root growth and mycorrhizal colonization
Bressan, Wellington;
Brazilian Journal of Microbiology , 2001, DOI: 10.1590/S1517-83822001000400004
Abstract: the effects of p and n amendment and its interactions on spore germination, root growth and colonized root length by glomus etunicatum becker & gerdemann (invam s329) was studied "in vitro" in rit - dna transformed roots of anthylis vulneraria sub sp. sampaiana (kidney vetch). three n media concentrations (5, 10 and 50 mg/l) at p constant level (2 mg/l) and three p media concentrations (2, 10 and 20 mg/l) at n constant level (5 mg/l) were utilized as a treatment. bécard & fortin medium was used as a basal medium for root growth and colonized root length, and water/agar (0.8%) media was the control for spore germination. spore germination of g. etunicatum at low p level was reduced by n addition in relation to the control media, and at low n level addition of p stimulated spore germination. total root length was stimulated by n addtion at low p level, but no significant difference (p£0.05) was observed between 10 and 50 mg/l of n. p addition at low n level media also stimulated total root growth, and a significant difference (p£0.05) was observed among p concentrations. colonized root length by g. etunicatum increased significantly (p£0.05) with p additions at low n levels. under low p level no significant differences was found between 10 and 50 mg/l of n. these results demonstrate that the interaction between p and n affect differently spore germination, root growth and colonized root lenght.
Factors affecting "in vitro" plant development and root colonization of sweet potato by Glomus etunicatum Becker & Gerd
Bressan, Wellington;
Brazilian Journal of Microbiology , 2002, DOI: 10.1590/S1517-83822002000100006
Abstract: nutrients media (murashige & skoog, hoagland & arnon and white's media) supplemented or not with sucrose and substrates (vermiculite, agar and natrosol) were tested for their effects on plant development and root colonization of micropropagated sweet potato, cv. white star, by glomus etunicatum becker & gerdemann (isolate invam fl s329). addition of sucrose (3%) did not affect plant development. however, hyphal growth and root colonization were depressed. contrasting responses to media nutrient concentration were observed for plant height, root colonization, and hyphal growth. the highest concentration of nutrients in murashige & skoog medium improved plant development, but this medium decreased hypha growth and inhibited root colonization. plants growing in vermiculite substrate had higher (p£0.05) development and mycorrhizal root colonization than those growing in agar or natrosol. the results indicate that colonization of micropropagated sweet potato by arbuscular mycorrhizal fungi is affected by media composition and type of substrate.
Doen?a enxerto versus hospedeiro aguda A- GVHD
Azevedo, Wellington;
Revista Brasileira de Hematologia e Hemoterapia , 2010, DOI: 10.1590/S1516-84842010005000060
Abstract: graft versus host disease (a-gvhd) is a systemic disease that affects bone marrow transplant patients receiving immunocompetent lymphocytes. the pathophysiology of this phenomenon is complex and involves a number of different effector immune responses to antigenic stimuli that are expressed due to tissue damage caused by disease or conditioning. this complication is frequent in bone marrow transplants and often determines the clinical outcome. in this chapter we discuss aspects of the biology of chronic graft versus host disease, its clinical evolution and the prophylactic and therapeutic management of this problem which can be devastating for patients undergoing allogeneic bone marrow transplantation.
O pensamento político de Hegel à luz de sua filosofia do direito
Trotta, Wellington;
Revista de Sociologia e Política , 2009, DOI: 10.1590/S0104-44782009000100002
Abstract: this article analyzes hegel's political thought, through the prism of his philosophy of law. i present a systematic exposition of hegel′s concept of philosophy, which made politics a necessary consequence, given the fact that his theoretical system sought to establish a unitary logic. in elaborating the present text, i have employed a very simple criteria: to present hegelian political thought through the prism of its own historical moment, taking the common difficulties that all of us experience in expressing universal ideas through singular experiences.. thus, i would like to note that although hegel thought of the state from the perspective of the universal concrete, his prussian gaze is guided by his concern for german unity. the article is divided into two sections. the first provides an exposition of the thinker's philosophical content, whereas the second seeks to carry out a systematic study of his political thought, based on his "philosophy of law". this systematization is understandable since the present text was initially a part of my master's thesis in which i related hegel and marx's thought in the 1843 period, as expressed in the latter's "critique of hegel's philosophy of law". lastly, in conclusion, i argue that notwithstanding the relevance of marx's set of criticisms, hegelian thought seems not only to provide a portrait of the modern state but also the contemporary one, particularly that of the last 30 years, a period in which legislative power has lost its legislative role, increasingly substituted by the executive which in turn has been confronted by the task of increasing the universality within its particularities.
ASSESSMENT IN EDUCATION: A CASE FOR QUALITY AND STANDARDS WITHIN THE CONTEXT OF OPEN AND DISTANCE EDUCATION: A Case Study of One Zimbabwean University
Wellington SAMKANGE
The Turkish Online Journal of Distance Education , 2012,
Abstract: A study was carried out to assess the assessment procedures used at one Open and Distance Learning (ODL) institution in Zimbabwe. The study focused on the views and perceptions of current and former students of the university. The study also analyzed some documents on assessment procedures at the university. The study used the qualitative methodology and data was qualitatively analyzed. The focus was on fifty current and former students in the Bachelor of Education in Educational Management (BEDM) and Master of Education in Educational Management (MEDM) programmes. Results indicated that both current and former students were generally satisfied with the assessment methods used in their programmes. These included assignments, examinations and research projects/dissertations. It was noted that examinations had the highest weighting in both programmes. However, the study also noted that there were some practices that compromised quality if not carefully handled. These included the supervision of research projects and dissertations by only one supervisor per student. There were fears of bias in that regard. The study came up with a number of recommendations. These included the need to reconcile and align regulations in Tutorial Letters with General Information and Regulations currently in use. Other recommendations included the need to review the study period without compromising the quality of education for BEDM, and the need to deal with issues of plagiarism of assignments. It should also be mandatory for Masters’ students to attend a viva voce to defend their dissertations. Finally, ODL demands innovative assessment methods which should be clearly distinct from conventional modes of assessment.
Some Comments on the Recent Study “Tracing the woes: An Empirical Analysis of the Airline Industry”
Wellington Costa
Revista de Literatura dos Transportes , 2009,
Abstract: This study aims to review the current situation of the airline industry in the United Stated from the analysis of the recent paper “Tracing the woes: An Empirical Analysis of the Airline Industry”, developed by Steven Berry and Panle Jia (2008). The authors discuss the turmoil in the industry in the early 2000's, denoted by four major bankruptcy, two mergers and all legacy carriers reporting profit reduction. The study estimates the impact of demand and supply evolution on profitability using a structural model of the US airline industry. As a result, they found that air travel demand has become more price-sensitive and passengers have now a strong preference for nonstop flights. At the end the results showed significant changes of marginal cost benefited from the nonstop flights.[Paper in Portuguese]
Strategic Airline Alliances and the Impact on Passenger Behavior
Wellington Costa
Revista de Literatura dos Transportes , 2010,
Abstract: This paper discusses one of the most important issues in the airline industry, namely, strategic alliances. One of the most recent studies surveyed here is the paper “Domestic airline alliances and consumer welfare”, developed by Olivier Armantier and Oliver Richard and published in The RAND Journal of Economics, 2008. This paper investigates consumer welfare consequences of a recent code-share agreement between Continental Airlines and Northwest Airlines using a discrete choice model based on individual flights. The results indicate some changes related to product pricing and consumer profile. The paper stresses that the alliance increased connecting passengers and decreased nonstop passengers, but did not impact consumers significantly, on average.[Paper in Portuguese]
To ban or not to ban: direct-to-consumer advertising and human rights analysis
Alex Wellington
Australasian Medical Journal , 2010,
Abstract: The issues surrounding Direct-To-Consumer Advertising of pharmaceuticals are ripe for scrutiny through the lens of Human Rights analysis. Among the human rights most decisively engaged by DTCA is the right to autonomy in health-related decision making, which in turn incorporates right of access to health-related information. The latter incorporates, in part, right of access to reliable and beneficial information through the avenues of commercial speech among others. Another crucial human right is the right not to be harmed by unsafe consumer products through corporate malfeasance or negligence. The most commonly invoked policy options in the context of DTCA are either an outright ban or strengthening regulatory oversight in combination with voluntary guidelines. Banning Direct-To-Consumer Advertising risks being both over inclusive and under inclusive as a policy option. A wholesale ban risks being over inclusive in that it could deprive consumers of information about medications with a positive benefit-risk profile, ones that could enhance their quality of health and well being. Thus it risks being overly paternalistic. Banning DTCA, by itself, is under inclusive in that it is insufficient to address the ways that unadvertised drugs can pose significant risks to consumers. Other policy measures would be most optimal to deal with the very serious deficits in the processes by which prescription drugs undergo clinical trials, and garner regulatory approval prior to their promotion in the marketplace. A more finely tuned approach to regulatory oversight is endorsed, one involving a proactive and precautionary approach reliant upon prior approval. Such an approach could help to address the very serious concerns about potential infringements of the human right not to be harmed by unsafe consumer products through corporate malfeasance or negligence.
The interactive effect of phosphorus and nitrogen on "in vitro" spore germination of Glomus etunicatum Becker & Gerdemann, root growth and mycorrhizal colonization
Bressan Wellington
Brazilian Journal of Microbiology , 2001,
Abstract: The effects of P and N amendment and its interactions on spore germination, root growth and colonized root length by Glomus etunicatum Becker & Gerdemann (INVAM S329) was studied "in vitro" in RiT - DNA transformed roots of Anthylis vulneraria sub sp. Sampaiana (Kidney vetch). Three N media concentrations (5, 10 and 50 mg/l) at P constant level (2 mg/l) and three P media concentrations (2, 10 and 20 mg/l) at N constant level (5 mg/l) were utilized as a treatment. Bécard & Fortin medium was used as a basal medium for root growth and colonized root length, and water/agar (0.8%) media was the control for spore germination. Spore germination of G. etunicatum at low P level was reduced by N addition in relation to the control media, and at low N level addition of P stimulated spore germination. Total root length was stimulated by N addtion at low P level, but no significant difference (p£0.05) was observed between 10 and 50 mg/l of N. P addition at low N level media also stimulated total root growth, and a significant difference (p£0.05) was observed among P concentrations. Colonized root length by G. etunicatum increased significantly (p£0.05) with P additions at low N levels. Under low P level no significant differences was found between 10 and 50 mg/l of N. These results demonstrate that the interaction between P and N affect differently spore germination, root growth and colonized root lenght.
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