Sani Yusuf | Bayero University, Kano (original) (raw)
Papers by Sani Yusuf
This survey is carried out to ascertain the attitude of the lecturers towards the utilization of ... more This survey is carried out to ascertain the attitude of the lecturers towards the utilization of library resources and services in Adamawa Four (4) objectives and Four (40 research questions guided the study. Data were collected through a structured questionnaire administered on one hundred and twenty (120) lecturers in Adamawa State Polytechnic drawn from various co and departments in the main campus. One hundred (100) out of one hundred and twenty (120) questionnaires were returned for the analyses. Data obtained were analyzed using descriptive statistics comprising frequency distribution and percentages. indicate amongst others that majority of the lecturers do not utilize the library effectively but occasionally when need arises. The study further revealed that majority of the lecturers are not satisfied with the resources and services render the library. The study revealed that lack of conducive environment, internet services, up-to utilization of resources and services by the lecturers in Adamawa State Polytechni Therefore, it was recommended among others that internet services in the library to meet the needs and interest of the lecturers in Adamawa State Polytechnic, Yola.
Journal of Separation Science, 2017
Microbes and Infectious Diseases, 2020
2017 International Conference on Computing, Networking and Communications (ICNC), 2017
Host mobility protocols such as Locator-Identifier Separation Protocol Mobile Node (LISP-MN) are ... more Host mobility protocols such as Locator-Identifier Separation Protocol Mobile Node (LISP-MN) are known to experience packet loss at the point of handover. For the duration of the handover, packets sent to the MN via the old access link are dropped by the router since it has no way of knowing where the device has moved to. This affects the performance of transport layer protocols of the TCP/IP stack, which results in degradation of network performance. Buffering these packets close to the MN's new location and forwarding them to the MN on handover completion is one way of improving the overall performance of the mobility protocol. Hence, we introduce a novel network node, locserver, to buffer these packets in order to mitigate the packet loss and reduce the service disruption time (SDT) experienced by MNs during handovers. Using a laboratory testbed implementation, LISP-MN with locserver support shows significant reduction in packet loss and reduced SDT in comparison to vanilla LISP-MN. Similarly, performance analysis of DASH video player also shows the new architecture helps in improving the average video quality downloaded by the MN and reduces the player's instability.
Background: The establishment of good research governance ensures integrity in research through a... more Background: The establishment of good research governance ensures integrity in research through accountability, transparency and responsibility. This systematic review aims at describing the evolution of the institutions of human research governance and ethical regulation in sub‐Saharan Africa. Method: PubMed was search from January 1980 up to November 2014 to identify studies on human research governance and ethical regulation in sub‐Saharan Africa. Result: We applied pre‐defined exclusion criteria to select 113 eligible studies from 146 studies. A progression in the number of studies was observed over the past thirty‐four years: 1980‐1990 [2], 1991‐2000 [10], 2001‐2010 [62] and 2011‐Nov 2014 [39]. In terms of geographical coverage the main countries represented were South Africa [30], Nigeria [10], Kenya [6], Uganda [5], Cameroon, Ghana, Malawi, Tanzania and Zimbabwe with 3 studies each. The studies were heterogeneous in terms of topic, method and outcome: research ethics policies...
Background: Many developing countries with high disease burden have inadequate universal health c... more Background: Many developing countries with high disease burden have inadequate universal health coverage. In this setting, epidemiological screening is constrained by ethical dilemma for investigators. On one hand, the screening confers awareness for participants. But factors like limited availability and costly healthcare services reinforce the unwillingness of the screened participants to seek and utilize the available healthcare service on a sustainable basis. This paper aims to describe the experience of a population‐based hypertension and obesity screening survey in northwestern Nigeria. Method: A cross‐sectional descriptive study was conducted on 1,900 University staff and students that are not covered by the National Formal Sector Social Health Insurance Program. The WHO Stepwise protocol for the screening of non‐communicable disease was employed. It begins with obtaining informed consent from all participants, and then questionnaires administered, anthropometric and blood pr...
Veterinary Parasitology, 2014
African trypanosomosis is a potentially fatal disease that is caused by extracellular parasitic p... more African trypanosomosis is a potentially fatal disease that is caused by extracellular parasitic protists known as African trypanosomes. These parasites inhabit the blood stream of their mammalian hosts and produce a number of pathological features, amongst which is anemia. Aetiology of the anemia has been partly attributed to an autoimmunity-like mediated erythrophagocytosis of de-sialylated red blood cells (dsRBCs) by macrophages. Lactose infusion to infected animals has proven effective at delaying progression of the anemia. However, the mechanism of this anemia prevention is yet to be well characterized. Here, the hypothesis of a likely induced further modification of the dsRBCs was investigated. RBC membrane galactose (RBC m-GAL) and packed cell volume (PCV) were measured during the course of experimental trypanosomosis in mice infected with Trypanosoma congolense (stb 212). Intriguingly, while the membrane galactose on the RBCs of infected and lactose-treated mice (group D) decreased as a function of parasitemia, that of the lactose-untreated infected group (group C) remained relatively constant, as was recorded for the uninfected lactose-treated control (group B) animals. At the peak of infection, the respective cumulative percent decrease in PCV and membrane galactose were 30 and 185 for group D, and 84 and 13 for group C. From this observed inverse relationship between RBCs membrane galactose and PCV, it is logical to rationalize that the delay of anemia progression during trypanosomosis produced by lactose might have resulted from an induction of galactose depletion from dsRBCs, thereby preventing their recognition by the macrophages.
This survey is carried out to ascertain the attitude of the lecturers towards the utilization of ... more This survey is carried out to ascertain the attitude of the lecturers towards the utilization of library resources and services in Adamawa Four (4) objectives and Four (40 research questions guided the study. Data were collected through a structured questionnaire administered on one hundred and twenty (120) lecturers in Adamawa State Polytechnic drawn from various co and departments in the main campus. One hundred (100) out of one hundred and twenty (120) questionnaires were returned for the analyses. Data obtained were analyzed using descriptive statistics comprising frequency distribution and percentages. indicate amongst others that majority of the lecturers do not utilize the library effectively but occasionally when need arises. The study further revealed that majority of the lecturers are not satisfied with the resources and services render the library. The study revealed that lack of conducive environment, internet services, up-to utilization of resources and services by the lecturers in Adamawa State Polytechni Therefore, it was recommended among others that internet services in the library to meet the needs and interest of the lecturers in Adamawa State Polytechnic, Yola.
Journal of Separation Science, 2017
Microbes and Infectious Diseases, 2020
2017 International Conference on Computing, Networking and Communications (ICNC), 2017
Host mobility protocols such as Locator-Identifier Separation Protocol Mobile Node (LISP-MN) are ... more Host mobility protocols such as Locator-Identifier Separation Protocol Mobile Node (LISP-MN) are known to experience packet loss at the point of handover. For the duration of the handover, packets sent to the MN via the old access link are dropped by the router since it has no way of knowing where the device has moved to. This affects the performance of transport layer protocols of the TCP/IP stack, which results in degradation of network performance. Buffering these packets close to the MN's new location and forwarding them to the MN on handover completion is one way of improving the overall performance of the mobility protocol. Hence, we introduce a novel network node, locserver, to buffer these packets in order to mitigate the packet loss and reduce the service disruption time (SDT) experienced by MNs during handovers. Using a laboratory testbed implementation, LISP-MN with locserver support shows significant reduction in packet loss and reduced SDT in comparison to vanilla LISP-MN. Similarly, performance analysis of DASH video player also shows the new architecture helps in improving the average video quality downloaded by the MN and reduces the player's instability.
Background: The establishment of good research governance ensures integrity in research through a... more Background: The establishment of good research governance ensures integrity in research through accountability, transparency and responsibility. This systematic review aims at describing the evolution of the institutions of human research governance and ethical regulation in sub‐Saharan Africa. Method: PubMed was search from January 1980 up to November 2014 to identify studies on human research governance and ethical regulation in sub‐Saharan Africa. Result: We applied pre‐defined exclusion criteria to select 113 eligible studies from 146 studies. A progression in the number of studies was observed over the past thirty‐four years: 1980‐1990 [2], 1991‐2000 [10], 2001‐2010 [62] and 2011‐Nov 2014 [39]. In terms of geographical coverage the main countries represented were South Africa [30], Nigeria [10], Kenya [6], Uganda [5], Cameroon, Ghana, Malawi, Tanzania and Zimbabwe with 3 studies each. The studies were heterogeneous in terms of topic, method and outcome: research ethics policies...
Background: Many developing countries with high disease burden have inadequate universal health c... more Background: Many developing countries with high disease burden have inadequate universal health coverage. In this setting, epidemiological screening is constrained by ethical dilemma for investigators. On one hand, the screening confers awareness for participants. But factors like limited availability and costly healthcare services reinforce the unwillingness of the screened participants to seek and utilize the available healthcare service on a sustainable basis. This paper aims to describe the experience of a population‐based hypertension and obesity screening survey in northwestern Nigeria. Method: A cross‐sectional descriptive study was conducted on 1,900 University staff and students that are not covered by the National Formal Sector Social Health Insurance Program. The WHO Stepwise protocol for the screening of non‐communicable disease was employed. It begins with obtaining informed consent from all participants, and then questionnaires administered, anthropometric and blood pr...
Veterinary Parasitology, 2014
African trypanosomosis is a potentially fatal disease that is caused by extracellular parasitic p... more African trypanosomosis is a potentially fatal disease that is caused by extracellular parasitic protists known as African trypanosomes. These parasites inhabit the blood stream of their mammalian hosts and produce a number of pathological features, amongst which is anemia. Aetiology of the anemia has been partly attributed to an autoimmunity-like mediated erythrophagocytosis of de-sialylated red blood cells (dsRBCs) by macrophages. Lactose infusion to infected animals has proven effective at delaying progression of the anemia. However, the mechanism of this anemia prevention is yet to be well characterized. Here, the hypothesis of a likely induced further modification of the dsRBCs was investigated. RBC membrane galactose (RBC m-GAL) and packed cell volume (PCV) were measured during the course of experimental trypanosomosis in mice infected with Trypanosoma congolense (stb 212). Intriguingly, while the membrane galactose on the RBCs of infected and lactose-treated mice (group D) decreased as a function of parasitemia, that of the lactose-untreated infected group (group C) remained relatively constant, as was recorded for the uninfected lactose-treated control (group B) animals. At the peak of infection, the respective cumulative percent decrease in PCV and membrane galactose were 30 and 185 for group D, and 84 and 13 for group C. From this observed inverse relationship between RBCs membrane galactose and PCV, it is logical to rationalize that the delay of anemia progression during trypanosomosis produced by lactose might have resulted from an induction of galactose depletion from dsRBCs, thereby preventing their recognition by the macrophages.