111 research outputs found
The impact of Bioversity International’s African leafy vegetables programme in Kenya
An effort by Bioversity and several partners in Kenya increased production, consumption and marketing of a wide range of African leafy vegetables (ALVs) and improved household welfare.
Between 1996 and 2004, Bioversity International worked with partners in Kenya to revive the interest of researchers and ordinary people in these valuable foods. An impact assessment study showed that nearly two-thirds of households growing ALVs increased their income from ALVs, while nearly half had increased their consumption of ALVs. Bioversity was ranked as the most influential partner in promoting production and use of ALVs and in raising awareness of the value of ALVs
Impact of Sociocultural factors on adoption of modern technologies in beekeeping projects among women groups in Kajiado County- Kenya
Sociocultural factors can have various impacts in projects during different project phases. These impacts can be either negative or positive. It is important for project implementers who target adoption of technology among people who hold onto certain cultures to understand what their clients believe and consider effective as well as acceptable. This research focused on sociocultural factors influencing adoption of modern technologies in beekeeping projects with particular focus to women beekeeping groups in Kajiado County in Kenya. The objective of the study was to establish the sociocultural factors that influence adoption of modern beekeeping technologies. The target population for this research was the beekeeping women groups in Kajiado County where a sample size of 116 respondents were drawn. The study employed the use of personal interviews, questionnaires, observation guides and key informant interview guides to collect data from the targeted respondents. The collected data was coded and entered into SPSS (version 21) for analysis. The findings of the study revealed that sociocultural factors have a positive and negative influence on adoption of beekeeping technologies. The factors identified were sex of the household head, marital status, size of the house hold, size of land and cultural beliefs. This conclusion confirmed the study carried out by the Kenya Beekeepers Association (K.B.A., 2005) which suggested that some of the sociocultural factors affecting adoption of new technologies could besex of household, marital status and size of the household among others.
 
Bronchoscopy for Removal of Aspirated Tracheobronchial Foreign Bodies at Kenyatta National Hospital, in Kenya
Background: This study was aimed at defining the presentation, morbidity and mortality following inhalation and subsequent removal of tracheobronchial foreign body using a rigid bronchoscope.Methods: This was a retrospective, cross-sectional study undertaken in the Ear Nose and Throat-Head and Neck Surgery Unit of Kenyatta National Hospital. The study population consisted of patients with brochoscopically proven tracheobronchial foreign body. Case notes of 107 consecutive admissions with brochoscopically verified tracheobronchial foreign bodieswere analyzed for age, sex, time interval between inhalation and removal, duration of stay in hospital, complications and mortality.Results: The vast majority of patients were below 3 years of age and 63% of them presented within 3 days after onset of symptoms. The right bronchus was the most frequent destination of inhaled foreign bodies (50.5%) followed by the left bronchus (17.8%) and carina (14.2%) inthat order. The turnover of patients with inhaled foreign bodies was high with 86.9% being discharged within 6 days after surgery. The bronchoscopic procedure was uneventful in 76.6% of patients. Repeat bronchoscopy was performed in three patients with one undergoing eventual thoracotomy.Intraoperative cardiac arrest occurred in 5 cases (4.6%) with successful resuscitation in 2 and mortality in three (2.7%) % cases.Conclusion: Bronchoscopic removal of inhaled foreign bodies remains one of the riskiest otolaryngologic emergencies in Kenyatta National Hospital partly because of involvement of the life sustaining airway and partly because of lack of ideal equipment and adequate expertise. The need for hands on experience and close cooperation and familiarity between theanaesthesiologist and the bonchoscopist is emphasized
Analysis of markets for African leafy vegetables within Nairobi ant its environs and implications for on-farm conservation of biodiversity
African Leafy Vegetables (ALVs) are important sources of essential macro and micro-nutrients. In addition they offer a source of livelihood when marketed, and also contribute to crop biodiversity. Despite these positive aspects, only a few ALVs are grown, marketed and consumed in Kenya. This study analyses the ALV market in Nairobi and the neighbouring areas, highlighting the factors that enable or inhibit its development. Furthermore, the study determined different factors influencing inter- and intra-specific on-farm biodiversity, with a focus on the role of ALV market development
Prevalence of antimicrobial resistance and association with patient outcomes in a rural Kenyan hospital
Data on antimicrobial resistance (AMR) and association with outcomes in resource-variable intensive care units (ICU) are lacking. Data currently available are limited to large, urban centers. We attempted to understand this locally through a dual-purpose, retrospective study. Cohort A consisted of adult and pediatric patients who had blood, urine, or cerebrospinal fluid cultures obtained from 2016 to 2020. A total of 3,013 isolates were used to create the Kijabe Hospital’s first antibiogram. Gram-negative organisms were found to be less than 50% susceptible to third- and fourth-generation cephalosporins, 67% susceptible to piperacillin–tazobactam, 87% susceptible to amikacin, and 93% susceptible to meropenem. We then evaluated the association between AMR and clinical characteristics, management, and outcomes among ICU patients (Cohort B). Demographics, vital signs, laboratory results, management data, and outcomes were obtained. Antimicrobial resistance was defined as resistance to one or more antimicrobials. Seventy-six patients were admitted to the ICU with bacteremia during this time. Forty complete paper charts were found for review. Median age was 34 years (interquartile range, 9–51), 26 patients were male (65%), and 28 patients were older than 18 years (70%). Septic shock was the most common diagnosis (n = 22, 55%). Six patients had AMR bacteremia; Escherichia coli was most common (n = 3, 50%). There was not a difference in mortality between patients with AMR versus non-AMR infections (P = 0.54). This study found a prevalence of AMR. There was no association between AMR and outcomes among ICU patients. More studies are needed to understand the impact of AMR in resource-variable settings
Minerals content of extruded fish feeds containing cricket (Acheta domesticus) and black soldier fly larvae (Hermetia illucens) fractions
Animal food sources provide human beings with minerals considerably in adequate quantities. Fish is an indispensable reliable source of nutrients, as aquaculture is a sector that is fast growing and which provides 50% of the world’s fish production. However, fish production is hampered by the increasing costs of feeds due to the ever rising cost of fish meal, an integral component of fish feeds. Substituting fish meal with cheap, yet highly nutritious ingredients in fish feeds is therefore paramount. This study investigated the effects of substituting fish meal with adult cricket meal (ACM) and black soldier fly meal (BSFM) on minerals content of extruded fish feeds, where four levels of substitution (0, 25, 50 and 75%) were used. The effect of feed moisture content on minerals was also studied where 20 and 30% feed moisture levels were used. Leaching effects of the pellets were studied as well. The results showed a significant increase (P < 0.05) in the levels of phosphorus and potassium as the level of fish meal substitution increased from 0 to 75%. On the other hand, iron and sodium levels reduced significantly (P < 0.05) as the level of fish meal substitution increased. Magnesium content increased with increasing level of substitution with BSFM, but decreased with increasing level of substitution with ACM. Copper, zinc and manganese were not greatly influenced by levels of fish meal substitution. Diets that had zero substitution showed higher leaching effect for most minerals than diets that were substituted with 75% ACM or BSFM. This study found that both ACM and BSFM can be used to substitute fish meal in fish feeds and obtain adequate mineral profile and low leaching effect
Postharvest processes of edible insects in Africa: A review of processing methods, and the implications for nutrition, safety and new products development
In many African cultures, insects are part of the diet of humans and domesticated animals. Compared to conventional food and feed sources, insects have been associated with a low ecological foot print because fewer natural resources are required for their production. To this end, the Food and Agriculture Organization of the United Nations recognized the role that edible insects can play in improving global food and nutrition security; processing technologies, as well as packaging and storage techniques that improve shelf-life were identified as being crucial. However, knowledge of these aspects in light of nutritional value, safety, and functionality is fragmentary and needs to be consolidated. This review attempts to contribute to this effort by evaluating the available evidence on postharvest processes for edible insects in Africa, with the aim of identifying areas that need research impetus. It further draws attention to potential postharvest technology options for overcoming hurdles associated with utilization of insects for food and feed. A greater research thrust is needed in processing and this can build on traditional knowledge. The focus should be to establish optimal techniques that improve presentation, quality and safety of products, and open possibilities to diversify use of edible insects for other benefits
Physico-chemical properties of extruded aquafeed pellets containing black soldier fly (Hermetia illucens) larvae and adult cricket (Acheta domesticus) meals
Fish farming is faced with the challenge of high cost of feeds because of the cost of high quality protein needed for formulation of the feeds. Thus, there is urgent need for alternative protein sources. The effects of substituting freshwater shrimp meal (FWSM) with black soldier fly larvae meal (BSFM) or adult cricket meal (ACM) on physico-chemical properties of hot-extruded fish feed pellets were investigated. The FWSM protein in a 26 g/100 g protein fish feed formulation was substituted at 0, 25, 50 and 75%, and moisture content of the formulated blends adjusted to 10, 20 or 30 g/100 g prior to extrusion. Floatability, expansion rate, bulk density, durability index, water absorption index, water solubility index, and water stability of extruded pellets were determined. Sinking velocity and the total suspended and dissolved solids in water were determined for the optimal pellets. Pellet floatability was not influenced by the type of insect meal but the interaction between level of inclusion and moisture content of the feed at extrusion. Pellets with high floatability >90% were produced from all feed blends at 30 g/100 g moisture content. Expansion ratio, was not influenced by type of insect meal or the level of inclusion but by the moisture content whereby feed blends extruded at 30 g/100 g moisture gave pellets with high expansion ratio ~60%. Bulk density was influenced by the interaction of the three factors. Pellet durability and water absorption indices were not influenced by the investigated factors or their interactions. Processed pellets were generally highly durable (99%) out of water, but the stability in water was significantly influenced by the interaction of type of insect meal level of inclusion and moisture content at extrusion. Water solubility increased with increasing extrusion moisture. Overall, it was possible to process good quality extruded pellets with 75% BSFM or 75% ACM at 30 g/100 g feed moisture
Social support for students with visual impairments in educational institutions : an integrative literature review
Students with visual impairments often experience emotional problems and encounter difficulties in forming and maintaining social relationships. Research indicates that the social support provided to these students by staff members and their peers in educational institutions may have a positive impact on their academic learning and socioemotional development. The purpose of this integrative literature review was to synthesise the results from 17 academic articles published during 1998 and 2018, which examined the topic of social support for students with visual impairments in educational institutions. This review reveals that for students with visual impairments cooperation, empathetic behaviour, and practical assistance are the main components of social support. These students actively seek social support from staff members and peers, but they face many challenges, such as the lack of training and awareness. Support from staff members contributes to students’ academic learning and social inclusion, whereas peers’ social support enhances their self-esteem and social acceptance. The outlined positive effects of educational interventions on students’ social skills and social interaction support the need for implementing more interventions. The limitations of the studies reviewed and recommendations for future research are discussed
Improving postpartum care delivery and uptake by implementing context-specific interventions in four countries in Africa: a realist evaluation of the Missed Opportunities in Maternal and Infant Health (MOMI) project.
Postpartum care (PPC) has remained relatively neglected in many interventions designed to improve maternal and neonatal health in sub-Saharan Africa. The Missed Opportunities in Maternal and Infant Health project developed and implemented a context-specific package of health system strengthening and demand generation in four African countries, aiming to improve access and quality of PPC. A realist evaluation was conducted to enable nuanced understanding of the influence of different contextual factors on both the implementation and impacts of the interventions. Mixed methods were used to collect data and test hypothesised context-mechanism-outcome configurations: 16 case studies (including interviews, observations, monitoring data on key healthcare processes and outcomes), monitoring data for all study health facilities and communities, document analysis and participatory evaluation workshops. After evaluation in individual countries, a cross-country analysis was conducted that led to the development of four middle-range theories. Community health workers (CHWs) were key assets in shifting demand for PPC by 'bridging' communities and facilities. Because they were chosen from the community they served, they gained trust from the community and an intrinsic sense of responsibility. Furthermore, if a critical mass of women seek postpartum healthcare as a result of the CHWs bridging function, a 'buzz' for change is created, leading eventually to the acceptability and perceived value of attending for PPC that outweighs the costs of attending the health facility. On the supply side, rigid vertical hierarchies and defined roles for health facility workers (HFWs) impede integration of maternal and infant health services. Additionally, HFWs fear being judged negatively which overrides the self-efficacy that could potentially be gained from PPC training. Instead the main driver of HFWs' motivation to provide comprehensive PPC is dependent on accountability systems for delivering PPC created by other programmes. The realist evaluation offers insights into some of the contextual factors that can be pivotal in enabling the community-level and service-level interventions to be effective
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