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    Wyświetlanie 1-3 z 3
    Tytuł:
    Epidemiology of tree-hole breeding mosquitoes in the tropical rainforest of Imo State, South-East Nigeria
    Autorzy:
    Anosike, J C
    Nwoke, B.E.B.
    Okere, A.N.
    Oku, E.E.
    Asor, J.E.
    Emmy-Egbe, I.O.
    Adimike, D.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/50771.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    ecology
    South-East Nigeria
    yellow fever
    mosquito
    epidemiology
    tree hole
    Nigeria
    human disease
    Imo State
    forest reserve
    disease vector
    rural area
    tropical region
    Opis:
    The study of tree-hole breeding mosquitoes was carried out in the tropical rainforest of Imo State Nigeria (two rural areas and two forest reserves in some parts of Orlu Senatorial Zone) between May – October 2002. Using standard entomological procedures, two macrohabitats (natural tree-holes and bamboo traps) and two microhabitats (leaf axils of cocoyams/pineapples and leaf axils of plantain/banana) were sampled for various mosquito species. Mosquitoes were recovered from all the various biotypes sampled. Types of mosquitoes species encountered, their relative abundance, as well as genera varied signifi cantly during the study (p<0.05). Four genera of mosquitoes: Aedes, Culex, Anopheles and Toxorhynchites were recovered while 16 species of mosquitoes encountered include: Aedes aegypti, Ae. africanus, Ae. simpsoni, Ae. albopictus, Ae. stokesi, Ae. taylori, Ae. apicoargenteus, Culex quinquefasciatus, Cx. nebulosus, Cx. trigripes, Cx. decens, Anopheles gambiae, An. funiestus, An. coustani and Toxorhynchites viridibasis. Most of the mosquitoes showed oviposition preferences for one or more habitats. The presence of Ae. africanus, Ae. simpsoni and Ae. aegypti indicate that the study areas were at risk of yellow fever epidemic. The presence of Anopheles and Culex species ensured endemicity of malaria and fi lariasis, while the recovery of Ae. albopictus in this region suggests a possible outbreak of dengue fever in future if not properly controlled.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2007, 14, 1
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Innovation and Employability of National Youth Service Corps Members for Sustainable Development in South-East, Nigeria
    Autorzy:
    Okafor, Ifeoma P.
    Manafa, Fausta
    Adeniji, Atinuke O.
    Olokooba, Issa Nasiru
    Ayorinde, Olumayowa
    Powiązania:
    https://bibliotekanauki.pl/articles/1963603.pdf
    Data publikacji:
    2020-09-30
    Wydawca:
    Wydawnictwo Adam Marszałek
    Tematy:
    Innovation
    employability
    NYSC member
    sustainable development
    Opis:
    This paper examines the innovation and employability of National Youth Service Corps (NYSC) members for sustainable development in south-east Nigeria. The research design employed for this study was a descriptive survey. The population for this study comprises all NYSC members serving in southeast Nigeria. A purposive sampling technique was used to sample all 2019 Batch “C” who participated in the Post Mobilisation Workshop held on 27t - 29t January 2020. Also, a simple random sampling technique was used to select 400 NYSC members from each state of south-east Nigeria. In all, 2000 NYSC members participated in this study. The questionnaire that was used to collect data in this study was titled “Influence of Innovation on Employability of NYSC Members for Sustainable Development Questionnaire”. Percentages were used in describing the demographic characteristics of the respondents, and mean ratings were used to answer the research questions. The findings revealed that influence of innovation on employability of NYSC members for sustainable development in south-east Nigeria was positive. The main new innovation to enhance employability of NYSC members for sustainable development in south-east Nigeria was agro-allied. The main employability skills of NYSC members for sustainable development in south-east Nigeria were confidence skills. It was concluded that innovation positively influences employability of NYSC members. It was recommended that the NYSC commission should embark on introducing more innovative skills to NYSC members for them to be able to stand on their own after the NYSC programme.
    Źródło:
    The New Educational Review; 2020, 61; 144-155
    1732-6729
    Pojawia się w:
    The New Educational Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of entrance skin dose and effective dose from abdomen radiography in two diagnostic facilities in Aba, Abia State, South-East Nigeria
    Autorzy:
    Esu, E. O.
    Chiegwu, H. U.
    Omojola, A. D.
    Eze, E. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839405.pdf
    Data publikacji:
    2021
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Entrance skin dose (ESD)
    Local diagnostic reference levels (LDRLs)
    Dose area product (DAP)
    Effective dose (E)
    Absorbed dose (DT)
    Thermoluminescent dosimeter (TLD)
    Kilovoltage peak (kVp)
    milliampere-seconds (mAs)
    Opis:
    Medical exposure for abdomen radiography is associated with higher doses compared to X-Rays of the chest and other extremities. The study aims to determine the mean entrance skin dose (ESD) for 104 adult patients between 20-89 years with 2 X-Ray units (A and B) in Aba, South-East Nigeria and to determine the ESD at the 75th percentile to estimate the local diagnostic reference levels (LDRLs). This study also determined the effective dose (E), the dose area product (DAP) and the relationship between absorbed dose (DT) and other parameters. This study will also compare its findings with relevant articles where necessary. The study used 2 functional floors mounted X-Ray units. A total of 208 annealed thermoluminescent dosimeters (TLDs) were used made of Lithium Fluoride, doped with Magnesium and Titanium (LiF: Mg, Ti). Two TLD chips were used per patient. The chips were positioned at the anterior and posterior end of the patient respectively for a given beam area for abdomen radiography. After exposure, a calibrated RadPro TLDcube 400 reader (Freiberg Instrument, Germany) was used to estimate individual patient doses. This was done by multiplying the TLD counts by a pre-determined calibration factor (CF). The mean/75th percentile ESD for facilities A and B was 2.92/4.12 and 3.01/3.67 mGy. The E for facilities A and B was 0.73 and 0.82 mSv respectively. There was a good relationship between the DT with ESD, exit dose (ED) and DAP for facility A, but no relationship was seen with other parameters. The mean ESD was lower compared to the National Council on Radiation Protection and Measurements (NCRP 172) and the American Association of Physicists in Medicine (AAPM) reports respectively. The study proved useful and could serve as a reference point to initiate LDRLs within the South-East zone in Nigeria for abdomen radiography.
    Źródło:
    World Scientific News; 2021, 161; 143-156
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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