Background: The recommendation of the WHO and UNICEF is that all infants should be exclusively breastfed up to 6 months of age. Identifying associated factors to exclusively breastfeeding is crucial to improve this ke...Background: The recommendation of the WHO and UNICEF is that all infants should be exclusively breastfed up to 6 months of age. Identifying associated factors to exclusively breastfeeding is crucial to improve this key public health intervention. The objectives of the study were to investigate rates of exclusive breastfeeding and to identify potential associated factors. Methods: A Community based cross-sectional study design was conducted in three health districts. Cluster sampling was used. For the community based cross-sectional study, a total of 1832 infants was included. Exclusive breastfeeding have been investigated among the 563 under 6 month’s infants. The associations between exclusive breastfeeding and independent variables were tested using the Chi-square test. Crude Odds ratios with 95 % confidence intervals were used to investigate the factors independently associated with exclusively breastfeeding. Results: Proportion of infant 0 - 5.9 months of age who are fed exclusively with breastmilk was 40.0%. Ear of age for mother was found to be more likely to practice exclusive breastfeeding, COR [95CI%] = 2.11 [1.24 - 3.60] for 15 - 20 years of age and 2.0 [1.22 - 3.26]. Receiving advices, on exclusive breastfeeding was found to be more likely to practice exclusive breastfeeding, COR: 2.07, 95% CI: [1.44 - 2.98]. Mothers who have practice early initiation to breastfeeding were found to be more likely to practice exclusive breastfeeding COR: 1.62, 95% CI: [1.15 - 2.27]. Skilled delivery was found to be more likely to practice exclusive breastfeeding than non-skilled deliveries, COR: 1.66, 95% CI: [1.16 - 2.35]. Low numbers of living children by mother, young children, were found to be more likely to practice exclusive breastfeeding. Conclusions: Exclusive breastfeeding continues to be low in rural areas of Burkina Faso. As Exclusive breastfeeding is associated to lower morbidity and mortality risk, improving the skills of health providers to give adequate feeding support to the mothers is critical for promoting exclusively breastfeeding.展开更多
In our work, we have been interested in conducting technological research on the use of photovoltaic energy for lighting. In fact, we have produced a stand-alone photovoltaic system with automatic search for the maxim...In our work, we have been interested in conducting technological research on the use of photovoltaic energy for lighting. In fact, we have produced a stand-alone photovoltaic system with automatic search for the maximum power point, consisting of a photovoltaic module, a solar regulator, a storage battery and a digital control by microcontroller. The solar field is connected to the input of the regulator and the battery to its output. When the battery voltage is lower than the regulation voltage, the controller operates the photovoltaic generator at maximum power Pmpp and transfers this power to the output. In addition to the protection function, this regulator ensures tracking of the maximum power point (MPPT) and allows the photovoltaic generator to deliver its power whatever the variation of climatic conditions (sunshine and temperature). The main role of the solar regulator is the continuous monitoring of the state of charge of the battery to ensure its protection against overcharging and excessive discharging, the coupling and decoupling of the user as well as its maintenance. The principle of operation is based on controlling a DC-DC converter by a rectangular “PWM” signal generated by a PIC16F874 microcontroller which also controls the entire system. The results of simulation after realization were presented to illustrate the operation of the regulator by curves.展开更多
Background: The global recommendations of the WHO and UNICEF are that all infants should start breastfeeding within one hour of birth. It is low-cost and has substantial potential to reduce neonatal and early infant m...Background: The global recommendations of the WHO and UNICEF are that all infants should start breastfeeding within one hour of birth. It is low-cost and has substantial potential to reduce neonatal and early infant morbidity. The objectives of the study were to investigate rate of early initiation of breastfeeding and to identify potential associated factors. Methods: A community based cross-sectional study design was conducted in three districts of Burkina Faso. Cluster sampling was used. The data were collected by using a structured and pretested interview questionnaire. The associations between early initiation and independent variables were tested using the Chi-square test. Crude Odds ratios (COR) with 95% confidence intervals were used. Results: Percentage of children who were put to the breast within one hour of birth was fair (41%). Having more than 2 antenatal care visits was found to be 1.43 times more likely to initiate breastfeeding early, COR: 1.4, 95% CI: [1.14 - 1.81], p Conclusions: This study demonstrates that delayed initiation of breastfeeding continues to be a problem in rural areas of Burkina Faso, as only four in 10 newborn infants received breast milk within the first hour of birth. The results show that receiving advices on early initiation of breastfeeding, child growth and feeding and skilled delivery were found to be more likely to initiate breastfeeding within one hour of delivery. Therefore improving the skills of health providers and, mother individual counselling and strengthening community-based support, are critical to improve timely initiation of breastfeeding.展开更多
文摘Background: The recommendation of the WHO and UNICEF is that all infants should be exclusively breastfed up to 6 months of age. Identifying associated factors to exclusively breastfeeding is crucial to improve this key public health intervention. The objectives of the study were to investigate rates of exclusive breastfeeding and to identify potential associated factors. Methods: A Community based cross-sectional study design was conducted in three health districts. Cluster sampling was used. For the community based cross-sectional study, a total of 1832 infants was included. Exclusive breastfeeding have been investigated among the 563 under 6 month’s infants. The associations between exclusive breastfeeding and independent variables were tested using the Chi-square test. Crude Odds ratios with 95 % confidence intervals were used to investigate the factors independently associated with exclusively breastfeeding. Results: Proportion of infant 0 - 5.9 months of age who are fed exclusively with breastmilk was 40.0%. Ear of age for mother was found to be more likely to practice exclusive breastfeeding, COR [95CI%] = 2.11 [1.24 - 3.60] for 15 - 20 years of age and 2.0 [1.22 - 3.26]. Receiving advices, on exclusive breastfeeding was found to be more likely to practice exclusive breastfeeding, COR: 2.07, 95% CI: [1.44 - 2.98]. Mothers who have practice early initiation to breastfeeding were found to be more likely to practice exclusive breastfeeding COR: 1.62, 95% CI: [1.15 - 2.27]. Skilled delivery was found to be more likely to practice exclusive breastfeeding than non-skilled deliveries, COR: 1.66, 95% CI: [1.16 - 2.35]. Low numbers of living children by mother, young children, were found to be more likely to practice exclusive breastfeeding. Conclusions: Exclusive breastfeeding continues to be low in rural areas of Burkina Faso. As Exclusive breastfeeding is associated to lower morbidity and mortality risk, improving the skills of health providers to give adequate feeding support to the mothers is critical for promoting exclusively breastfeeding.
文摘In our work, we have been interested in conducting technological research on the use of photovoltaic energy for lighting. In fact, we have produced a stand-alone photovoltaic system with automatic search for the maximum power point, consisting of a photovoltaic module, a solar regulator, a storage battery and a digital control by microcontroller. The solar field is connected to the input of the regulator and the battery to its output. When the battery voltage is lower than the regulation voltage, the controller operates the photovoltaic generator at maximum power Pmpp and transfers this power to the output. In addition to the protection function, this regulator ensures tracking of the maximum power point (MPPT) and allows the photovoltaic generator to deliver its power whatever the variation of climatic conditions (sunshine and temperature). The main role of the solar regulator is the continuous monitoring of the state of charge of the battery to ensure its protection against overcharging and excessive discharging, the coupling and decoupling of the user as well as its maintenance. The principle of operation is based on controlling a DC-DC converter by a rectangular “PWM” signal generated by a PIC16F874 microcontroller which also controls the entire system. The results of simulation after realization were presented to illustrate the operation of the regulator by curves.
文摘Background: The global recommendations of the WHO and UNICEF are that all infants should start breastfeeding within one hour of birth. It is low-cost and has substantial potential to reduce neonatal and early infant morbidity. The objectives of the study were to investigate rate of early initiation of breastfeeding and to identify potential associated factors. Methods: A community based cross-sectional study design was conducted in three districts of Burkina Faso. Cluster sampling was used. The data were collected by using a structured and pretested interview questionnaire. The associations between early initiation and independent variables were tested using the Chi-square test. Crude Odds ratios (COR) with 95% confidence intervals were used. Results: Percentage of children who were put to the breast within one hour of birth was fair (41%). Having more than 2 antenatal care visits was found to be 1.43 times more likely to initiate breastfeeding early, COR: 1.4, 95% CI: [1.14 - 1.81], p Conclusions: This study demonstrates that delayed initiation of breastfeeding continues to be a problem in rural areas of Burkina Faso, as only four in 10 newborn infants received breast milk within the first hour of birth. The results show that receiving advices on early initiation of breastfeeding, child growth and feeding and skilled delivery were found to be more likely to initiate breastfeeding within one hour of delivery. Therefore improving the skills of health providers and, mother individual counselling and strengthening community-based support, are critical to improve timely initiation of breastfeeding.
