40 research outputs found
Value Chain Analysis of Banana in ‘Tekeze’ River Basin, North Ethiopia
This paper aims to describe the functions and power relationship of the value chain actors, and to analyze their profit share in the chain for the commodity. In this study both qualitative and quantitative data types were collected from primary and secondary sources to get detailed and diverse information. Representative samples from the different actors in the chain were randomly selected and interviewed. The value chain map was first constructed to indicate the sequence of activities, the key actors and their relationships involved in the chain. The common marketing channels which show the product flow were identified. Marketing costs, margins and value share of the different marketing participants was examined using the chain performance indicators. In this study, mapping of the major actors participating in the chain and the product flow was well developed. Three common marketing channels of banana were identified in the study areas. Marketing costs and margins were analyzed to determine the profit shares of the actors and value addition by intermediaries along the chain. Keywords: market chain, marketing margin, mapping value chain, profit share, marketing cos
The global, regional, and national burden of oesophageal cancer and its attributable risk factors in 195 countries and territories, 1990-2017: A systematic analysis for the global burden of disease study 2017
© 2020 The Author(s). Background Oesophageal cancer is a common and often fatal cancer that has two main histological subtypes: oesophageal squamous cell carcinoma and oesophageal adenocarcinoma. Updated statistics on the incidence and mortality of oesophageal cancer, and on the disability-adjusted life-years (DALYs) caused by the disease, can assist policy makers in allocating resources for prevention, treatment, and care of oesophageal cancer. We report the latest estimates of these statistics for 195 countries and territories between 1990 and 2017, by age, sex, and Socio-demographic Index (SDI), using data from the Global Burden of Diseases, Injuries, and Risk Factors Study 2017 (GBD). Methods We used data from vital registration systems, vital registration-samples, verbal autopsy records, and cancer registries, combined with relevant modelling, to estimate the mortality, incidence, and burden of oesophageal cancer from 1990 to 2017. Mortality-to-incidence ratios (MIRs) were estimated and fed into a Cause of Death Ensemble model (CODEm) including risk factors. MIRs were used for mortality and non-fatal modelling. Estimates of DALYs attributable to the main risk factors of oesophageal cancer available in GBD were also calculated. The proportion of oesophageal squamous cell carcinoma to all oesophageal cancers was extracted by use of publicly available data, and its variation was examined against SDI, the Healthcare Access and Quality (HAQ) Index, and available risk factors in GBD that are specific for oesophageal squamous cell carcinoma (eg, unimproved water source and indoor air pollution) and for oesophageal adenocarcinoma (gastro-oesophageal reflux disease). Findings There were 473 000 (95% uncertainty interval [95% UI] 459 000-485 000) new cases of oesophageal cancer and 436 000 (425 000-448 000) deaths due to oesophageal cancer in 2017. Age-standardised incidence was 5.9 (5.7-6.1) per 100 000 population and age-standardised mortality was 5.5 (5.3-5.6) per 100 000. Oesophageal cancer caused 9.78 million (9.53-10.03) DALYs, with an age-standardised rate of 120 (117-123) per 100 000 population. Between 1990 and 2017, age-standardised incidence decreased by 22.0% (18.6-25.2), mortality decreased by 29.0% (25.8-32.0), and DALYs decreased by 33.4% (30.4-36.1) globally. However, as a result of population growth and ageing, the total number of new cases increased by 52.3% (45.9-58.9), from 310 000 (300 000-322 000) to 473 000 (459 000-485 000); the number of deaths increased by 40.0% (34.1-46.3), from 311 000 (301 000-323 000) to 436 000 (425 000-448 000); and total DALYs increased by 27.4% (22.1-33.1), from 7.68 million (7.42-7.97) to 9.78 million (9.53-10.03). At the national level, China had the highest number of incident cases (235 000 [223 000-246 000]), deaths (213 000 [203 000-223 000]), and DALYs (4.46 million [4.25-4.69]) in 2017. The highest national-level agestandardised incidence rates in 2017 were observed in Malawi (23.0 [19.4-26.5] per 100 000 population) and Mongolia (18.5 [16.4-20.8] per 100 000). In 2017, age-standardised incidence was 2.7 times higher, mortality 2.9 times higher, and DALYs 3.0 times higher in males than in females. In 2017, a substantial proportion of oesophageal cancer DALYs were attributable to known risk factors: tobacco smoking (39.0% [35.5-42.2]), alcohol consumption (33.8% [27.3-39.9]), high BMI (19.5% [6.3-36.0]), a diet low in fruits (19.1% [4.2-34.6]), and use of chewing tobacco (7.5% [5.2-9.6]). Countries with a low SDI and HAQ Index and high levels of indoor air pollution had a higher proportion of oesophageal squamous cell carcinoma to all oesophageal cancer cases than did countries with a high SDI and HAQ Index and with low levels of indoor air pollution. Interpretation Despite reductions in age-standardised incidence and mortality rates, oesophageal cancer remains a major cause of cancer mortality and burden across the world. Oesophageal cancer is a highly fatal disease, requiring increased primary prevention efforts and, possibly, screening in some high-risk areas. Substantial variation exists in age-standardised incidence rates across regions and countries, for reasons that are unclear
Global, regional, and national cancer incidence, mortality, years of life lost, years lived with disability, and disability-Adjusted life-years for 29 cancer groups, 1990 to 2017 : A systematic analysis for the global burden of disease study
Importance: Cancer and other noncommunicable diseases (NCDs) are now widely recognized as a threat to global development. The latest United Nations high-level meeting on NCDs reaffirmed this observation and also highlighted the slow progress in meeting the 2011 Political Declaration on the Prevention and Control of Noncommunicable Diseases and the third Sustainable Development Goal. Lack of situational analyses, priority setting, and budgeting have been identified as major obstacles in achieving these goals. All of these have in common that they require information on the local cancer epidemiology. The Global Burden of Disease (GBD) study is uniquely poised to provide these crucial data. Objective: To describe cancer burden for 29 cancer groups in 195 countries from 1990 through 2017 to provide data needed for cancer control planning. Evidence Review: We used the GBD study estimation methods to describe cancer incidence, mortality, years lived with disability, years of life lost, and disability-Adjusted life-years (DALYs). Results are presented at the national level as well as by Socio-demographic Index (SDI), a composite indicator of income, educational attainment, and total fertility rate. We also analyzed the influence of the epidemiological vs the demographic transition on cancer incidence. Findings: In 2017, there were 24.5 million incident cancer cases worldwide (16.8 million without nonmelanoma skin cancer [NMSC]) and 9.6 million cancer deaths. The majority of cancer DALYs came from years of life lost (97%), and only 3% came from years lived with disability. The odds of developing cancer were the lowest in the low SDI quintile (1 in 7) and the highest in the high SDI quintile (1 in 2) for both sexes. In 2017, the most common incident cancers in men were NMSC (4.3 million incident cases); tracheal, bronchus, and lung (TBL) cancer (1.5 million incident cases); and prostate cancer (1.3 million incident cases). The most common causes of cancer deaths and DALYs for men were TBL cancer (1.3 million deaths and 28.4 million DALYs), liver cancer (572000 deaths and 15.2 million DALYs), and stomach cancer (542000 deaths and 12.2 million DALYs). For women in 2017, the most common incident cancers were NMSC (3.3 million incident cases), breast cancer (1.9 million incident cases), and colorectal cancer (819000 incident cases). The leading causes of cancer deaths and DALYs for women were breast cancer (601000 deaths and 17.4 million DALYs), TBL cancer (596000 deaths and 12.6 million DALYs), and colorectal cancer (414000 deaths and 8.3 million DALYs). Conclusions and Relevance: The national epidemiological profiles of cancer burden in the GBD study show large heterogeneities, which are a reflection of different exposures to risk factors, economic settings, lifestyles, and access to care and screening. The GBD study can be used by policy makers and other stakeholders to develop and improve national and local cancer control in order to achieve the global targets and improve equity in cancer care. © 2019 American Medical Association. All rights reserved.Peer reviewe
Global injury morbidity and mortality from 1990 to 2017 : results from the Global Burden of Disease Study 2017
Correction:Background Past research in population health trends has shown that injuries form a substantial burden of population health loss. Regular updates to injury burden assessments are critical. We report Global Burden of Disease (GBD) 2017 Study estimates on morbidity and mortality for all injuries. Methods We reviewed results for injuries from the GBD 2017 study. GBD 2017 measured injury-specific mortality and years of life lost (YLLs) using the Cause of Death Ensemble model. To measure non-fatal injuries, GBD 2017 modelled injury-specific incidence and converted this to prevalence and years lived with disability (YLDs). YLLs and YLDs were summed to calculate disability-adjusted life years (DALYs). Findings In 1990, there were 4 260 493 (4 085 700 to 4 396 138) injury deaths, which increased to 4 484 722 (4 332 010 to 4 585 554) deaths in 2017, while age-standardised mortality decreased from 1079 (1073 to 1086) to 738 (730 to 745) per 100 000. In 1990, there were 354 064 302 (95% uncertainty interval: 338 174 876 to 371 610 802) new cases of injury globally, which increased to 520 710 288 (493 430 247 to 547 988 635) new cases in 2017. During this time, age-standardised incidence decreased non-significantly from 6824 (6534 to 7147) to 6763 (6412 to 7118) per 100 000. Between 1990 and 2017, age-standardised DALYs decreased from 4947 (4655 to 5233) per 100 000 to 3267 (3058 to 3505). Interpretation Injuries are an important cause of health loss globally, though mortality has declined between 1990 and 2017. Future research in injury burden should focus on prevention in high-burden populations, improving data collection and ensuring access to medical care.Peer reviewe
Organic inputs from agroforestry trees on farms for improving soil quality and crop productivity in Ethiopia
Indigenous agroforestry trees and shrubs on farmlands are an under-utilized resource that can be used as green manures (GM) to alleviate declining soil fertility and productivity. The aims of studies described in this thesis were to investigate: (1) the seasonal dynamics in chemical contents of foliage from selected tree species potentially available as sources of GM, (2) rates and patterns of mineralization of nutrients during decomposition of leaves, (3) nutrient limitations for microbial processes in Mollic andosols from farm and forest land-uses using microbial respiration kinetics, (4) the utility of microbial respiration kinetics for characterizing the quality of plant materials, and (5) the effect of combined GM and fertilizer inputs on crop yield and soil properties. The studies used two leguminous (Albizia gummifera G.F. Gmel and Milletia ferruginea (Hochst.) Baker) and two non-leguminous (Cordia africana Lam. and Croton macrostachyus Del.) species. Foliar contents of N, soluble polyphenols (PL) and condensed tannin (CT) were higher during the wet season while those of K and lignin were higher during the dry season. Green leaves had higher N and P contents while senesced ones had higher contents of K, cellulose, PL and CT. On average, 27% of N and 48% of P was resorbed during senescence. In a decomposition study that used leaves of Albizia and Cordia, Albizia had higher mass loss, N loss and release of CT than Cordia. However, N was immobilized for the first four weeks in both species. High rates of CT loss seemed to have facilitated decomposition in Albizia despite high initial contents of PL and CT in the leaves. Nitrogen was more limiting than P for the soil micro-biota suggesting the presence of adequate amounts of endogenous soil P. Addition of excess P resulted in respiration pattern with two peaks, suggesting different N pools being available over time. The substrate-induced respiration, specific microbial growth rate and microbially available P were higher for the farm; while the % total added C respired (49-69%) was higher for the forest land-use indicating increased C costs to utilize strongly bound nutrients. Under both laboratory and field conditions, 11%-44% and 10%-42% of initial leaf C was mineralised within a month, respectively, with the species ranking as: Cordia < Albizia < Milletia < Croton. Supplemental N and P had little effect on C mineralization. Green manure (GM) from the four species caused an increase in maize yield by 10-84%, with the increase being higher for GM from Croton and Cordia which apparently had higher P and K contents in their foliage than Albizia and Milletia. Measurable improvements in pH and soil organic C due to GM inputs were also observed at the end of the short–term (2 y) field trial
The Impact of Integrated Adherence Support services on TB/HIV Co-infected patients health care utilization
Adherence support services in the provision of healthcare have previously been known in various diseases and contexts. Aimed mainly at giving psychosocial support for people with HIV/AIDS, individuals in psychosocial and behavioral disorders as well as substance abuses by people in similar situation, peer counseling service was mainly known to be delivered in such conditions as in an established social networks, community organizations, family settings as well as work place environments, among others. Institutional based peer support services as adherent support services for TB/HIV co-infection has been relatively a recent phenomenon. In Ethiopia, the approach has being used in ART clinics as an integral part of the collaborative care services for TB/HIV co-infected patients. However, there is limited knowledge regarding its impact on the co-infected patients’ healthcare utilization.
The central purpose of this study is to investigate the impact of integrating Peer approach as Adherence support services on TB/HIV Co-infected Patients healthcare utilization as explained by the patients’ medication adherence and retention in care services.
The study has adopted a qualitative research approach recruiting participants from TB/HIV co-infected patients, lay peer counselors as well as professional health workers in two ART clinics of two public hospitals located in two Regional States (Addis Ababa and Oromia) in Ethiopia.
The study revealed that the integration of peer counselors in the ART clinics played a substantial significance role in enabling TB/HIV co-infected patients adhere to their medications and utilize their care services. Giving experiential information with respect to medication, strategies of managing social effects of the disease and clinical effects of medications, have been found some of the critical importance of institutionalizing the service.
However, though with varying degrees, factors such as Health Belief and Patient attitudes, patients Socio-Economic Factors as well as Medication Related Factors are still found to be negatively impacting TB/HIV co-infected patients health services Utilization.
The study also showed that the TB/HIV integrated services could be made more effective by addressing the human and physical constraints as well as training needs of the peer counselors
An exploration of work ethics in the Ethiopian civil service : the case of selected federal institutions
Ethics was identified by the Ethiopian government as one of the areas requiring attention and was made an integral part of the ongoing Civil Service Reform Program since 1996. Despite the reform efforts that have been going on for about two decades, no rigorous academic and empirical research has been conducted to understand the nature and depth of the problems. Moreover, the theoretical discourses in the general literature and the national efforts made by the government and its development partners also emphasize on the structural and procedural issues of ethics, giving little focus to the behavioural components or dimensions of ethics of civil servants. The purpose of this study was to investigate and critically analyse the nature and dynamics of work ethics in the Ethiopian civil service; and to assess the ethical environment within which the public sector operates in the country. Mixed research method was applied. Questionnaires were used to collect primary quantitative data from two groups of research participants – civil servants and the service users; whereas primary qualitative data were collected employing in-depth interviews from managers and key experts in the field. Data from secondary sources were also used. The quantitative data were analysed using descriptive analysis. The qualitative ones were analysed using the qualitative data analysis technique with the emphasis on the phenomenological approach. The study showed that there is clearly growing awareness of ethical challenges within the civil service, though a fundamental change in the ethical conduct of the employees is not yet realized. It is also found out that there is no problem of legislation and policy frameworks; rather the problem lies in the weak implementation and enforcement of them. Leadership behaviour, absence of strong institutions, poor accountability system, poor remuneration and politicization of the civil service were identified as the biggest challenges to foster ethical conduct. Accordingly, it is suggested that the government play a key role in addressing the problems that hamper the effective implementation of the reform efforts. Other stakeholders such as the civic society organizations, religious institutions, the private sector, schools and the general public should also work closely with the government. Ensuring ethical conduct requires synergy of all actors, ranging from ordinary citizens to high-level decision-making bodies.Business ManagementD.B.L
Effect of P Application Rate and Rhizobium Inoculation on Nodulation, Growth, and Yield Performance of Chickpea (Cicer arietinum L.)
Chickpea (Cicer arietinum L.) is the world’s third most vital food legume after beans and peas in production level. Yet, its productivity in the last decade has been declined, and it has been contended that the usual native soil rhizobial populations are insufficient/ineffective in N2-fixation. Rhizobium inoculation of the seed may substitute costly N-fertilizers and provide a useful way of achieving sustainable production. Hence, to supply an adequate rhizobial population in the rhizosphere, seed inoculation of chickpea with an effective and importunate rhizobial strain is essential in soils having no/feeble bacterial existence and has revealed optimistic effect on nodule number and mass, growth, yield, and its attributes over uninoculated ones. Its effect has been influenced by N content and P-deficiency of soil, rhizobium strain, variety, T°, pH, salinity, and moisture stress. Phosphorus (P) demand is high in chickpeas, and P deficiency also has a negative effect on chickpea production success. Several research results revealed significant effects of P rate (30–200 kg P2O5 ha−1) on nodule number, mass, and rating plant−1; LAI, RGR, DM, plant height, and branches plant−1; pods and grains plant−1, grain and biomass yields, 100-grain weight, and HI compared to the control. P rates response has been affected by moisture level, pH, available P and N, and variety. Particularly, joint use of P rate and rhizobium inoculation on chickpea has been stated to improve nodulation, growth, and yield and soil fertility. Various studies on the integrated use of P rate and rhizobium inoculation under varying situations showed enhanced nodulation, growth, and yield over the P rate or rhizobium inoculation alone. This might be attributed to adequate P supply and improved utilization with the provision of suitable N2-fixing bacteria for enhanced nodulation and adequate N supply
A Preliminary Survey of Medium- and Large-Sized Mammals and Their Conservation Status in the Asimba Forest Priority Area, Semiarid Highlands of Northern Ethiopia
Mammal species provide vital environmental and economic functions although they globally face numerous threats. Knowledge of the composition and diversity of mammal species provide information for appropriate management interventions. We conducted this study from July 2019 to February 2020 to assess the species composition, diversity, and conservation of medium- and large-sized mammals in the Asimba Forest Priority Area, northern Ethiopia. Data were collected through direct and indirect evidence from three habitat types, namely, natural forest, bushland, and plantation forest. We analyzed the data using descriptive statistics and the Species Diversity Index. We also used χ2 to compare differences in the number of observations and species richness of the mammal species in different habitats between the dry and wet seasons. A total of 263 observations were compiled, and 15 medium- and large-sized mammalian species were recorded in the Asimba Forest Priority Area. The Species Diversity Index and Evenness of the area were H′ = 2.436 and J = 0.899, respectively. Hamadryas baboon (Papio hamadryas) was the most commonly observed species, with 20.7 and 19.2 relative frequencies in the dry and wet seasons, respectively, whereas striped polecat (Ictonyx striatus) was the rarest species, with 3.0 and 0.0 relative frequencies during the dry and wet seasons, respectively. The number of observations (χ2 = 2.298, df = 2, and p=0.316) and species richness (χ2 = 0.115, df = 2, and p=0.943) did not differ significantly in the three habitats. Anthropogenic factors, mainly habitat destruction and overgrazing, were widely observed in the Asimba forest as conservation threats to the mammal species. The current study helps to increase knowledge about the mammal species of the area and is essential for their future conservation strategies