Mulumba Mathias | Ndejje University (original) (raw)
Papers by Mulumba Mathias
Mulumba Mathias Bazimbe
This paper shows that in a standard overlapping-generations model where parental altruism results... more This paper shows that in a standard overlapping-generations model where parental altruism results in transfers that children allocate to consumption and education, a constraint on children and parents'borrowing can reduce child labor and increase welfare. However, a constraint on the ability of parents to borrow, conditional on children not being allowed to borrow, reduces welfare and increases child labor. Understanding this distinction is crucial for the design of public policy.
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This document describes the job responsibilities, qualifications and conditions of employment, an... more This document describes the job responsibilities, qualifications and conditions of employment, and compensation for the Assistant Resident Director (ARD) and Assistant Area Coordinator (AAC) positions in the Office of Residence Life. Once assigned to a community, the expectations of the ARD/AAC role may be adapted to reflect the needs, focus, theme, and unique character of the community. Senior Staff members assist the Professional Staff and serve as a member of a community Leadership Team. Senior Staff help to implement a student development program that reflects the Jesuit mission of the University, namely development of the whole person. Senior Staff contribute to the overall development of the community by assisting with the academic and personal growth of residents and student staff members, advising Community Council, supervising service desk operations, assisting with building operations, and by promoting and supporting an inclusive environment in which differences are though...
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Literacy Information and Computer Education Journal
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mulumba mathias, 2019
Management is a process or function that mobilizes people and resources to accomplish outlined go... more Management is a process or function that mobilizes people and resources to accomplish outlined goals and objectives. According to me, there are five functions that would ensure the process of production is conducted effectively and efficiently. These include:
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mulumba mathias, 2019
Peace and Conflict Studies is an interdisciplinary field of study with a commitment to the non-vi... more Peace and Conflict Studies is an interdisciplinary field of study with a commitment to the non-violent management and resolution of conflict from the local to the international level. To pursue this goal, core political concepts such as power, order, violence and justice are theorized in distinctive ways
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Applied Mechanics and …, 2013
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Advanced Materials …, 2013
ABSTRACT Nowadays the method based on demodulation by envelope finds wide application in industry... more ABSTRACT Nowadays the method based on demodulation by envelope finds wide application in industry as a technique for evaluation of bearings and other components in rotating machinery. In recent years the application of Wavelets for fault diagnosis in machinery has also obtained good development. This article demonstrates the effectiveness of the combined application of Wavelets and envelope technique (also known as HFRT High-Frequency Resonance Technique) to remove background noise from signals collected from defect bearings and identification of the characteristic frequencies of defects. A comparison of the results obtained with the isolated application of only one method against the combined technique is performed showing the increased capacity in detection of faults in rolling bearings.
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CADERNO DE RESUMOS, 2004
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Galemys, 2003
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Mammalia, 1998
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Biological Journal of The Linnean Society, 2005
The island of Madeira harbours highly differentiated Robertsonian (Rb) races of the house mouse (... more The island of Madeira harbours highly differentiated Robertsonian (Rb) races of the house mouse (Mus musculus domesticus), carrying several unique Rb fusions. The reproductive and geographical isolation between these races is expected to restrict gene flow severely, and contribute to their genetic differentiation. In the present study, the chromosomal distribution and frequency of transcriptionally active nucleolar organizer regions (AgNORs) between five Madeiran races was studied. The results showed that AgNORs were present in the centromeric regions of five chromosome pairs. Differences in NOR distribution were apparent within and between races. Comparison between races showed that AgNOR variation occurred independently of the Rb or non-Rb state of the chromosomes and of the NOR-bearing status of the partner chromosomes. The results indicated that Rb fusion formation does not interfere with the activity of rDNA genes. In addition our data provided no evidence that the presence of AgNOR sites inhibits Rb fusion. A cluster analysis showed that AgNOR differentiation was only partly congruent with the chromosomal divergence and geographical proximity between races. In particular, parapatrically distributed races showing the lowest chromosomal divergence exhibited high levels of AgNOR differentiation. If confirmed, this suggests that premating isolation may be reinforcing a barrier to gene flow between the races. © 2005 The Linnean Society of London, Biological Journal of the Linnean Society, 2005, 84, 585–591.
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Biological Trace Element Research, 2006
Time-dependent effects of lead (Pb) toxicity were studied in Algerian mice (Mus spretus) treated ... more Time-dependent effects of lead (Pb) toxicity were studied in Algerian mice (Mus spretus) treated with Pb acetate via drinking water (1 g Pb acetate/L) for different periods of exposure (15, 45, and 90 d). End points included the determination of hepatic Pb concentration and the assessment of some morphophysiological, biochemical and cytogenetical parameters. A control group receiving distilled water was also monitored for comparative purposes. Hepatic Pb accumulation increased with the time of exposure and was significantly higher in treated mice when compared to controls. In association with significant body mass loss in Pb-exposed mice, for 15 and 45 d, a significant increase in the relative spleen mass was observed after 45 d of intoxication. Pb-exposed mice also showed significant decreases in red blood cells, hematocrit, and mean corpuscular hemoglobin. On the contrary, changes in plasma transferases (aspartate aminotransferase and alanine aminotransferase) and hepatic superoxide dismutase activities did not reach statistical significance. A significant increase in the frequency of micronucleated polychromatic bone marrow erythrocytes was also found in the 90-d-exposed mice, compared to nontreated mice and the other exposed groups. Exposure to Pb acetate resulted also in a slight time-dependent decrease of the polychromatic-normochromatic ratio. These results support the concept that a long-term chronic exposure to Pb induced alterations upon some morphophysiological and genetic paramaters in Algerian mice.
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Mammalia, 2001
ABSTRACT This study describes the diet of two populations of European wild rabbits inhabiting a m... more ABSTRACT This study describes the diet of two populations of European wild rabbits inhabiting a maritime sand dune system and a scrubland, in Central Portugal. Histological analyses were applied to 11 monthly samples of rabbit droppings from each study site. Results obtained were compared and an evaluation of the quantitative and qualitative similarity of the food consumed by both populations was carried out. In the sand dune habitat grasses formed the bulk of the diet throughout the year (53%), three species accounting for about 40% of the yearly diet : Dactylis glomerata, Holcus lanatus and Ammophila arenaria, characteristically coastal species. By contrast, in the scrubland, although grasses represented a substantial part of the diet (38%), dicotyledon species were the most widely eaten (48%), particularly Cistus salvifolius, Cistus crispus and Ulex parviflorus. The diet of rabbits at the sand dune habitat was more varied in winter and summer, but in the scrubland, a more diversified diet was found in winter and spring. The differences between the food choices of the two populations are discussed on the basis of the preferences of rabbit and the availability of particular food items, especially regarding endemic or rare plant species.
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Environmental Pollution, 2008
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European Journal of Epidemiology, 1997
Insectivores (Erinaceus europaeus) and rodents (Rattus rattus, R. norvegicus and Mus musculus) fr... more Insectivores (Erinaceus europaeus) and rodents (Rattus rattus, R. norvegicus and Mus musculus) from different islands of the Azores Archipelago were found to carry three distinct Leptospira interrogans (s.l.) serovars (copenhageni, icterohaemorrhagiae and ballum) which have never been previously investigated there. The house mouse and the black rat were the major Leptospira reservoirs showing isolation rates ranging from 0% for both species (in Graciosa) to 88% and 33%, respectively (in São Miguel). This study also showed that the majority of the animals with positive kidney cultures exhibited specific agglutinins against the isolated strains of Leptospira. The observed isolation rates in the different islands, with a very interesting island variation in prevalence, suggest that small mammals, serving as sylvatic reservoirs of pathogenic leptospires, may represent an important risk to the health of humans and livestock, particularly in the islands of Terceira and São Miguel.
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Heredity, 2007
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Mulumba Mathias Bazimbe
This paper shows that in a standard overlapping-generations model where parental altruism results... more This paper shows that in a standard overlapping-generations model where parental altruism results in transfers that children allocate to consumption and education, a constraint on children and parents'borrowing can reduce child labor and increase welfare. However, a constraint on the ability of parents to borrow, conditional on children not being allowed to borrow, reduces welfare and increases child labor. Understanding this distinction is crucial for the design of public policy.
Bookmarks Related papers MentionsView impact
This document describes the job responsibilities, qualifications and conditions of employment, an... more This document describes the job responsibilities, qualifications and conditions of employment, and compensation for the Assistant Resident Director (ARD) and Assistant Area Coordinator (AAC) positions in the Office of Residence Life. Once assigned to a community, the expectations of the ARD/AAC role may be adapted to reflect the needs, focus, theme, and unique character of the community. Senior Staff members assist the Professional Staff and serve as a member of a community Leadership Team. Senior Staff help to implement a student development program that reflects the Jesuit mission of the University, namely development of the whole person. Senior Staff contribute to the overall development of the community by assisting with the academic and personal growth of residents and student staff members, advising Community Council, supervising service desk operations, assisting with building operations, and by promoting and supporting an inclusive environment in which differences are though...
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Literacy Information and Computer Education Journal
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mulumba mathias, 2019
Management is a process or function that mobilizes people and resources to accomplish outlined go... more Management is a process or function that mobilizes people and resources to accomplish outlined goals and objectives. According to me, there are five functions that would ensure the process of production is conducted effectively and efficiently. These include:
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mulumba mathias, 2019
Peace and Conflict Studies is an interdisciplinary field of study with a commitment to the non-vi... more Peace and Conflict Studies is an interdisciplinary field of study with a commitment to the non-violent management and resolution of conflict from the local to the international level. To pursue this goal, core political concepts such as power, order, violence and justice are theorized in distinctive ways
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Applied Mechanics and …, 2013
Bookmarks Related papers MentionsView impact
Advanced Materials …, 2013
ABSTRACT Nowadays the method based on demodulation by envelope finds wide application in industry... more ABSTRACT Nowadays the method based on demodulation by envelope finds wide application in industry as a technique for evaluation of bearings and other components in rotating machinery. In recent years the application of Wavelets for fault diagnosis in machinery has also obtained good development. This article demonstrates the effectiveness of the combined application of Wavelets and envelope technique (also known as HFRT High-Frequency Resonance Technique) to remove background noise from signals collected from defect bearings and identification of the characteristic frequencies of defects. A comparison of the results obtained with the isolated application of only one method against the combined technique is performed showing the increased capacity in detection of faults in rolling bearings.
Bookmarks Related papers MentionsView impact
CADERNO DE RESUMOS, 2004
Bookmarks Related papers MentionsView impact
Galemys, 2003
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Mammalia, 1998
Bookmarks Related papers MentionsView impact
Biological Journal of The Linnean Society, 2005
The island of Madeira harbours highly differentiated Robertsonian (Rb) races of the house mouse (... more The island of Madeira harbours highly differentiated Robertsonian (Rb) races of the house mouse (Mus musculus domesticus), carrying several unique Rb fusions. The reproductive and geographical isolation between these races is expected to restrict gene flow severely, and contribute to their genetic differentiation. In the present study, the chromosomal distribution and frequency of transcriptionally active nucleolar organizer regions (AgNORs) between five Madeiran races was studied. The results showed that AgNORs were present in the centromeric regions of five chromosome pairs. Differences in NOR distribution were apparent within and between races. Comparison between races showed that AgNOR variation occurred independently of the Rb or non-Rb state of the chromosomes and of the NOR-bearing status of the partner chromosomes. The results indicated that Rb fusion formation does not interfere with the activity of rDNA genes. In addition our data provided no evidence that the presence of AgNOR sites inhibits Rb fusion. A cluster analysis showed that AgNOR differentiation was only partly congruent with the chromosomal divergence and geographical proximity between races. In particular, parapatrically distributed races showing the lowest chromosomal divergence exhibited high levels of AgNOR differentiation. If confirmed, this suggests that premating isolation may be reinforcing a barrier to gene flow between the races. © 2005 The Linnean Society of London, Biological Journal of the Linnean Society, 2005, 84, 585–591.
Bookmarks Related papers MentionsView impact
Biological Trace Element Research, 2006
Time-dependent effects of lead (Pb) toxicity were studied in Algerian mice (Mus spretus) treated ... more Time-dependent effects of lead (Pb) toxicity were studied in Algerian mice (Mus spretus) treated with Pb acetate via drinking water (1 g Pb acetate/L) for different periods of exposure (15, 45, and 90 d). End points included the determination of hepatic Pb concentration and the assessment of some morphophysiological, biochemical and cytogenetical parameters. A control group receiving distilled water was also monitored for comparative purposes. Hepatic Pb accumulation increased with the time of exposure and was significantly higher in treated mice when compared to controls. In association with significant body mass loss in Pb-exposed mice, for 15 and 45 d, a significant increase in the relative spleen mass was observed after 45 d of intoxication. Pb-exposed mice also showed significant decreases in red blood cells, hematocrit, and mean corpuscular hemoglobin. On the contrary, changes in plasma transferases (aspartate aminotransferase and alanine aminotransferase) and hepatic superoxide dismutase activities did not reach statistical significance. A significant increase in the frequency of micronucleated polychromatic bone marrow erythrocytes was also found in the 90-d-exposed mice, compared to nontreated mice and the other exposed groups. Exposure to Pb acetate resulted also in a slight time-dependent decrease of the polychromatic-normochromatic ratio. These results support the concept that a long-term chronic exposure to Pb induced alterations upon some morphophysiological and genetic paramaters in Algerian mice.
Bookmarks Related papers MentionsView impact
Mammalia, 2001
ABSTRACT This study describes the diet of two populations of European wild rabbits inhabiting a m... more ABSTRACT This study describes the diet of two populations of European wild rabbits inhabiting a maritime sand dune system and a scrubland, in Central Portugal. Histological analyses were applied to 11 monthly samples of rabbit droppings from each study site. Results obtained were compared and an evaluation of the quantitative and qualitative similarity of the food consumed by both populations was carried out. In the sand dune habitat grasses formed the bulk of the diet throughout the year (53%), three species accounting for about 40% of the yearly diet : Dactylis glomerata, Holcus lanatus and Ammophila arenaria, characteristically coastal species. By contrast, in the scrubland, although grasses represented a substantial part of the diet (38%), dicotyledon species were the most widely eaten (48%), particularly Cistus salvifolius, Cistus crispus and Ulex parviflorus. The diet of rabbits at the sand dune habitat was more varied in winter and summer, but in the scrubland, a more diversified diet was found in winter and spring. The differences between the food choices of the two populations are discussed on the basis of the preferences of rabbit and the availability of particular food items, especially regarding endemic or rare plant species.
Bookmarks Related papers MentionsView impact
Environmental Pollution, 2008
Bookmarks Related papers MentionsView impact
European Journal of Epidemiology, 1997
Insectivores (Erinaceus europaeus) and rodents (Rattus rattus, R. norvegicus and Mus musculus) fr... more Insectivores (Erinaceus europaeus) and rodents (Rattus rattus, R. norvegicus and Mus musculus) from different islands of the Azores Archipelago were found to carry three distinct Leptospira interrogans (s.l.) serovars (copenhageni, icterohaemorrhagiae and ballum) which have never been previously investigated there. The house mouse and the black rat were the major Leptospira reservoirs showing isolation rates ranging from 0% for both species (in Graciosa) to 88% and 33%, respectively (in São Miguel). This study also showed that the majority of the animals with positive kidney cultures exhibited specific agglutinins against the isolated strains of Leptospira. The observed isolation rates in the different islands, with a very interesting island variation in prevalence, suggest that small mammals, serving as sylvatic reservoirs of pathogenic leptospires, may represent an important risk to the health of humans and livestock, particularly in the islands of Terceira and São Miguel.
Bookmarks Related papers MentionsView impact
Heredity, 2007
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