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Search Results: 1 - 10 of 87794 matches for " Linus I. Masumbuko "
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Genetic Diversity and Structure of East African Tall Coconuts in Tanzania Using RAPD Markers  [PDF]
Linus I. Masumbuko, Salama Sinje, Alois Kullaya
Open Journal of Genetics (OJGen) , 2014, DOI: 10.4236/ojgen.2014.42018
Abstract:

RAPD markers were used to estimate levels of genetic diversity and structure among twelve East African Tall (EAT) coconut (Cocos nucifera L.) accessions that are maintained at Chambezi station. Ten primers were used in the analysis of 120 accessions. Cluster analysis was performed based on Jaccard’s coefficient and Nei genetic distances. Further analyses included principal coordinate analysis (PCA) and finally bootstrap analysis. The cluster analysis revealed two main clusters. One cluster contained provenances from Lindi and Mtwara regions (south) and those from Coast and Dar es Salaam regions (central); the second had provenances from Tanga region, which is the northern part of the coastal belt. A similar distribution of provenances was shown by the results of the principal coordinate analysis, whose first three coordinates explained 56% of the total variation. The results were able to discriminate between the different provenances and provide evidence of the different origins for the coconut palms in the northern and southern parts of coastal coconut-growing belt. The two major clusters concur well with the history and distribution of coconuts in the coastal belt of Tanzania.

Knowledge and Practices Related to HIV/AIDS Infection among Youths in Mining Areas of Central Tanzania: A Case of Londoni and Winza Mining Areas
J. Lwelamira,A. Sarwatt,I. Masumbuko
Asian Journal of Medical Sciences , 2012,
Abstract: Sexually Transmitted Infections (STIs) including HIV/AIDS are among the major Sexual and Reproductive Health problems facing Sub-Saharan Africa countries. Most of the new HIV/AIDS infections are concentrated among youths. Mining areas are among the risky area with regard to the infection. This study was carried out in 2 mining areas of Central Tanzania viz. Londoni in Manyoni District and Winza in Mpwapwa District to assess knowledge and practices related to HIV/AIDS among youths with the aim of providing information that could help in curbing the problem among youths in a study population. Specific objectives of the study were to determine proportion of youths with comprehensive knowledge on HIV/AIDS; determining prevalence of high risk sexual behaviors among youths, as well as identification of correlates of high risk sexual behaviors among youths in a study population. This was a cross-sectional study that involved a random sample 202 youths aged between 15-24 years with equal number of respondents from each mining area. Data were analyzed for descriptive statistics using Statistical Package for Social Sciences (SPSS) version 16. The software was also used for running Binary Multiple Logistic Regression Analysis for identification of factors associated with high risk sexual behaviors among youths in a study population. Results of this study indicated that although majority of youths were aware of HIV/AIDS, however, a considerable proportion of them (41%) lacked a comprehensive knowledge on the infection. Results of the present study also indicate risky sexual behaviors among youths in a study population existed at substantial rate. On overall, based on sexual experience (If ever had sex), number of sexual partner and condom use in last 12 months before survey, as well as marital/ union status, nearly one-third of total respondents (32%), a considerable proportion, were engaged in high risk sexual behaviours and hence vulnerable to HIV infection. Chances (Odds) for engaging in high risk sexual behaviors by youths increased significantly with lack of comprehensive knowledge on HIV/AIDS (OR = 1.95; 95% CI, 1.24-3.07), decreased significantly with having secondary education and above (OR = 0.74, 95% CI, 0.67-0.82); increased significantly with being from distant areas/villages (OR = 1.43, 95% CI, 1.18-1.75) and being from Mpwapwa mining area (OR = 1.86, 95% CI, 1.39-2.48). The Likelihood also increased significantly with main activity in mining area being mining (OR = 3.21; 95% CI, 1.93-5.37), bar/hotel maid (OR = 4.18; 95% CI, 3.07-5.70) and just roamin
Worms and war: A case report of trauma and tropical disease intersecting
Masumbuko Claude,Hawkes Michael
African Journal of Paediatric Surgery , 2010,
Abstract: Background: We report a case of heavy intestinal infestation with Ascaris lumbricoides complicating the surgical management of a gunshot injury to the abdomen. Co-existent traumatic and infectious pathologies in this case highlight the complex burden of illness among children living in areas of violent conflict, with clinical relevance to trauma surgeons in the tropics.
Epidemiology of complications of male circumcision in Ibadan, Nigeria
Linus I Okeke, Adanze A Asinobi, Odunayo S Ikuerowo
BMC Urology , 2006, DOI: 10.1186/1471-2490-6-21
Abstract: The patients were made up of 370 consecutive consented children attending our infant welfare clinic for immunization over a period of 3 months. Information on their demographic data, their age at circumcision, where, why and who circumcised them was obtained from their mothers. They were clinically examined for the presence and type of complications of circumcision.Our circumcision rate was 87%. Neonatal circumcision had been performed in 270 (83.9%) of the children. Two hundred and fifty nine (80.7%) were performed in hospitals. The operation was done by nurses in 180 (55.9%), doctors in 113 (35.1%) and by the traditional circumcisionist in 29 (9%) of the children. Complications of circumcision occurred in 65 [20.2%] of the children. Of those who sustained these complications, 35 (53.8%) had redundant foreskin, 16 (24.6%) sustained excessive loss of foreskin, 11 (16.9%) had skin bridges, 2 (3.1%) sustained amputation of the glans penis and 1 (1.5%) had a buried penis. One of the two children who had amputation of the glans also had severe hemorrhage and was transfused. Even though the complications tended to be more likely with nurses than with doctors or traditional circumcisionists, this did not reach statistical significance (p = 0.051).We have a very high rate of complications of circumcision of 20.2%. We suggest that training workshops should be organized to adequately retrain all practitioners of circumcision on the safe methods available.About 25% of the total world male population is circumcised and circumcision remains one of the oldest and commonest operations performed all over the world [1-4]. The complication rates of the procedure range between 0.19% and 3.1% [1,5-7]. The Fetus and Newborn Committee of the Canadian Pediatric Society and the American Academy of Pediatrics extensively considered the costs, complications and the presumed advantages of neonatal circumcision and recommended that circumcision of the newborn should not be performed routinely
The effect of age, gender, level of adiposity and diabetes duration on glycated hemoglobin reduction after anti-diabetic therapy in type-2 diabetic patients  [PDF]
Chinwe O. Ewenighi, Uchechukwu Dimkpa, Babatunde I. Adejumo, Joel C. Onyeanusi, Isaac N. Nnatuanya, Uzor Simon, Linus U. M. Onoh, Uchechukwu Ezeugwu
Journal of Diabetes Mellitus (JDM) , 2012, DOI: 10.4236/jdm.2012.22039
Abstract: Background: It is established that glycemic control measures involving diet and oral medication reduce glycated hemoglobin concentration (HbA1c) in type-2 diabetic patients. Aim: We aimed to determine whether HbA1c reduction after diabetic treatment is affected by age, gender, level of adiposity and diabetes duration in type-2 diabetic patients. Methods: One hundred and four type-2 diabetic patients participated in a 20-week diabetic control therapy involving oral medication (metformin) and lifestyle intervention (diet). We compared the HbA1c reduction after treatment between the elderly and non-elderly; males and females; overweight/obese and non-overweight/obese; and long-standing and newly diagnosed patients. Results: After the treatment, participants had mean HbA1c reduction of 1.1 ± 1.31% and weight loss of 2.46 ± 1.79 kg. Forty-six (44.2%) of the patients had acceptable HbA1c level of <6.5%. Significantly greater HbA1c reduction was observed in non-elderly, non-overweight/obese and newly diagnosed patients compared to the elderly, overweight/obese and long-standing diabetic patients (p < 0.05 or p < 0.01 or p < 0.001), respectively. HbA1c reduction did not indicate significant sex differences. Conclusion: The present findings suggest that treatment criteria for type-2 diabetes should account for the age, level of adiposity and diabetes duration of the patient in order to make optimal therapeutic decisions for the treatment of diabetes mellitus in adults.
Thread embedded into penile tissue over time as an unusual hair thread tourniquet injury to the penis: a case report
Linus Okeke
Journal of Medical Case Reports , 2008, DOI: 10.1186/1752-1947-2-230
Abstract: A 9-year-old boy presented with a 3-year history of hair thread tourniquet injury to his penis. Instead of the usual strangulation or amputation, the tourniquet had become embedded into the penile tissue, manifesting with exuberant granulation tissue and a tight urethral stricture. At surgery, the intact tourniquet was still in place, embedded in dense fibrous tissue and associated with a dense urethral fibrosis which measured about 2 cm long. The tourniquet was divided and removed, the fibrotic urethra excised and a distal penile pedicled skin flap used to perform a single-stage substitution urethroplasty. The patient has been voiding well for 28 months.This case is unusual and is the first report of its kind. It is also the first report of a hair thread tourniquet as the cause of pediatric penile injury in Nigeria.Hair thread tourniquet syndrome has been recognized since the 1960s when a strangulating strand of hair was reported around the penis [1]. The patient usually presents acutely and responds well to removal of the tourniquet [2]. When there is a delay in presentation, partial amputation of the penis is often seen, with varying degrees of urethral transection [3].We report the case of a 9-year-old boy who had a hair thread tourniquet on his penis for 3 years, but presented with only urethral stricture and granulation tissue and no strangulation or amputation of the penis.A 9-year-old boy was seen at our urology outpatients' clinic in September 2005 with a 3-year history of straining at micturition and fleshy non-healing wounds located on the dorsolateral aspects of his penile shaft associated with minimal purulent discharge. The amount of discharge was not related to the act of voiding. He lived with his grandmother, who had tried topical applications of native medications without much improvement. On clinical examination, he had a ring scar located at the midshaft of his penis. The scar did not appear to be constrictive. There was no change in skin colorat
Labor Market Discrimination: Vietnamese Immigrants
Linus Yamane
Journal of Southeast Asian American Education and Advancement , 2012,
Abstract: Vietnamese and East European immigrants face similar obstacles in the U.S. labor market. This provides for an interesting test of racial discrimination in the labor market. Does it make any difference if an immigrant is Asian or White? When Vietnamese immigrants are compared to East European immigrants, Vietnamese men earn 7-9% less than comparable East European men, with more discrimination among the less educated, and in the larger Vietnamese population centers like California. Vietnamese women earn as much as comparable East European women. Vietnamese immigrants, male and female, are much less likely to hold managerial and supervisory positions than comparable East European immigrants.
The topology of a semisimple Lie group is essentially unique
Linus Kramer
Mathematics , 2010,
Abstract: We study locally compact group topologies on semisimple Lie groups. We show that the Lie group topology on such a group $S$ is very rigid: every 'abstract' isomorphism between $S$ and a locally compact and $\sigma$-compact group $\Gamma$ is automatically a homeomorphism, provided that $S$ is absolutely simple. If $S$ is complex, then non-continuous field automorphisms of the complex numbers have to be considered, but that is all.
On the local structure and the homology of CAT$(κ)$ spaces and euclidean buildings
Linus Kramer
Mathematics , 2010,
Abstract: We prove that every open subset of a euclidean building is a finite dimensional absolute neighborhood retract. This implies in particular that such a set has the homotopy type of a finite dimensional simplicial complex. We also include a proof for the rigidity of homeomorphisms of euclidean buildings. A key step in our approach to this result is the following: the space of directions $\Sigma_oX$ of a CAT$(\kappa)$ space $X$ is homotopy quivalent to a small punctured disk $B_\eps(X,o)\setminus o$. The second ingredient is the local homology sheaf of $X$. Along the way, we prove some results about the local structure of CAT$(\kappa)$-spaces which may be of independent interest.
Notes on completely reducible subcomplexes of spherical buildings
Linus Kramer
Mathematics , 2010,
Abstract: A completely reducible subcomplex of a spherical building is a spherical building.
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