653 research outputs found
Management system requirements for wireless systems beyond 3G
This paper presents a comprehensive description of various management system requirements for systems beyond 3G, which have been identified as a result of the Software Based Systems activities within the Mobile VCE Core 2 program. Specific requirements for systems beyond 3G are discussed and potential technologies to address them proposed. The analysis has been carried out from network, service and security viewpoints
Willingness to Pay For Insecticide-Treated Nets in Berehet District, Amhara Region, Northern Ethiopia: Implication of Social Marketing
Background: Understanding the feasibility of achieving widespread coverage with Insecticide- Treated Nets has to be preceded by learning how people value the Insecticide-Treated Nets and estimating the potential demand and willingness to pay so that sustainability of the intervention can be assured. The objective of this study was to determine willingness to pay for Insecticide-Treated Nets among households in Berehet District, Northern Ethiopia.Methods: A community-based cross-sectional study was conducted using both quantitative and qualitative methods in five randomly selected Kebeles from January-February 2012. Open ended contingent valuation technique with follow-up method was used. Qualitative data were collected through focus group discussions and observation methods. Binary logistic regression was used to determine the association between dependent and independent variables.Results: The average number of individuals per Insecticide-Treated Nets was 3.83 .Nearly 68.5% persons had willingness to buy Insecticide-Treated Nets if they have access to these Nets. The median maximum price a person is willingness to pay for blue rectangular Insecticide-Treated Net was 20 ETB. People had willingness to pay 30 ETB for blue and white conical insecticide-treated nets. Working on knowledge of malaria (OR=0.68, CI (0.47, 0.98; p<0.05), perceived benefit of Insecticide-Treated Nets (OR=0.28, CI (0.2-0.4; p<0.05), perceived susceptibility (OR=0.64(0.44-0.93; p<0.05) and perceived severity of malaria (OR=0.65(0.47-0.91, p<0.05) had significant association with a willingness to pay Insecticide-Treated Nets. Respondents who prefer kebele/place/ to buy Insecticide-Treated Net for rectangular shape had a significant association with a willingness to pay for Insecticide-Treated Nets(OR=1.92, CI= 1.07-3.92).Conclusion: Promotions, products, price and place had significant association with willingness to pay for Insecticide-Treated Nets. Designing a social marketing strategy helps ensure sustainable supply of Insecticide-Treated Nets and proper use of Insecticide-Treated Nets.Keywords: Willingness to pay, Insecticide-Treated Nets, Social marketing, Malari
Effect of Grain Tef (Eragrostis tef (Zucc.) Trotter) Flour Substitutions with Flaxseed on Mineral Content, Antioxidant Activity, Phytic Acid Content and Microbial Quality of Injera
There is an increased global interest in the food industry to develop and market functional foods in which scientific investigations are limited in Ethiopia. Tef injera functional character can be further enhanced by substitution with flaxseed which is known to bear functional ingredients (α-linolenic acid an ω-3 fatty acid, secoisolariciresinol diglycoside lignans, dietary fibre and proteins). Two flaxseed forms (whole and flour) and three flaxseed substitution levels (3%, 6% and 9% flaxseed) arranged in a factorial experimental design in three replications were cofermented to find out whole or flour and at what substitution level injera with better nutrient and functional potential can be processed. Tef injera (100%) was used as a control. Tef injera substituted with flaxseed (whole and flour) at 3%, 6% and 9% showed a significant (P<0.05) effect on minerals (except P), ferric ion reducing antioxidant power (FRAP), phytic acid and microbial quality of injera. With 9% flaxseed substitution FRAP, Zn and Ca contents percentage increase were: 102, 110 and 16; whereas phytic acid and Fe decreased by 76 and 19, respectively from the control. Between 2 to 6 injera storage days, yeast-mould (2.27 to 3.93 log cfug-1) and total aerobic plate counts (ND to 3.77 log cfug-1) were lowest for 9% flaxseedsubstitution and highest for the control injera (2.85 to 4.08 log cfug-1 and 3.70 to 4.30 log cfug-1, respectively). Coliforms were not detected. Whole flaxseed substituted injera had high minerals, antioxidant and microbial stability than flour flaxseed substituted injera. Injera with high minerals (except iron) and antioxidant of improved microbial stability, low phytic acid contents can be processed by 9% flaxseed substitution
Challenges and opportunities for market-oriented apiculture development: the case of Ada'a-Liben district, Ethiopia
Approaches, methods and processes for innovative apiculture development: experiences from Ada'a-Liben Woreda Oromia Regional State, Ethiopia
The Improving Productivity and Marketing Success (IPMS) for Ethiopian Farmers'; Project being implemented by the International Livestock Research Institute (ILRI) commissioned Sap-Tec PLC to study the existing potential and execute apiculture development in Ada';a-Liben woreda, one of the IPMS'; ten Pilot Learning Woredas (PLWs). The main objective of this apiculture intervention was to identify the current beekeeping practices, assess potentials and problems, and provide solutions through the introduction of a participatory market-oriented modern beekeeping practice as an income-generating activity to farmers and others who are interested to complement their income. The activities reported in this paper are based on studies and interventions undertaken to enhance market-oriented apiculture development in Ada';a-Liben woreda between 2005 and 2007. This working paper is divided into a number of sections. The first two sections describe the major strengths and constraints of the bee industry in Ethiopia. Section 3 describes the beekeeping institutes and associations. Sections 4 and 5 analyse the most important opportunities and threats for apiculture development and marketing intervention in Ada';a-Liben woreda. Section 6 presents IPMS intervention strategies and lessons learned in knowledge sharing, capacity building, and commodity development including technology transfer, platforms, input supply, credit facilitation and market linkage. This section also discusses the methods used and the achievements obtained so far. Finally, Section 7 discusses both general and industry specific recommendations, which form the basis for further development of the industry. This working paper is intended to provide preliminary information on lessons drawn in beekeeping interventions in Ada';a-Liben woreda and to share the experiences to those who have already launched or are planning to launch apiary development program as an alternative income generating activity. It also highlights the methodologies applied and the lessons learned from the apiculture interventions of the IPMS project for scaling up to other woredas. The main objective of this apiculture intervention was to identify the current beekeeping practices, assess potentials and problems, and provide solutions through the introduction of a participatory market-oriented modern beekeeping practice as an income-generating activity to farmers and others who are interested to complement their income
N=1 Supersymmetric Moose Theories
We study the quantum moduli spaces and dynamical superpotentials of four
dimensional linear and ring moose theories with
supersymmetry and link chiral superfields in the fundamental representation.
Nontrivial quantum moduli spaces and dynamical superpotentials are produced.
When the moduli space is perturbed by generic tree level superpotentials, the
vacuum space becomes discrete. The ring moose is in the Coulomb phase and we
find two singular submanifolds with a nontrivial modulus that is a function of
all the independent gauge invariants needed to parameterize the quantum moduli
space. The massive theory near these singularities confines. The Seiberg-Witten
elliptic curve that describes the quantum moduli space of the ring moose is
produced.Comment: 26 pages, 4 figures. A few comments and references added. To appear
in PR
Iodine deficiency in primary school children and knowledge of iodine deficiency and iodized salt among caretakers in Hawassa Town: Southern Ethiopia
Background: More than two billion individuals worldwide have inadequate iodine intake and the adverse consequences of iodine deficiency are widely observed.Objective: To assess the iodine status of primary school children and the knowledge of iodine deficiency disorders among their caretakers.Methods: A cross-sectional study was conducted in Hawassa Town, Southern Ethiopia. The study participants were school children (n=116) aged 7-9 years. A two-stage sampling method was used to select participants. Goiter and urinary iodine concentration were measured in the children to evaluate their iodine status. Socioeconomic characteristics, dietary patterns and caretaker knowledge of iodine deficiency were assessed by using questionnaires. Household salt iodine concentration was also measured.Results: Total goiter rate was 13.6% and was significantly associated with age [AOR=13.4 (3.2-55.7)]. Eighty two percent of the children had urinary iodine concentration below 50 ìg/L, indicating the presence of moderate iodine deficiency. None of the households were using adequately iodized salt. More than half of the respondents did notknow about the importance of iodized salt. Conclusion: The observed degree of iodine deficiency in children and the limited knowledge about iodine in an urban area such as Hawassa stress the urgent need for implementing interventions to combat iodine deficiency. [Ethiop. J. Health Dev. 2012;26(1):30-35
The Genotypic and Phenotypic Basis of Chickpea (Cicer arietinum L.) Cultivars for Irrigation-Based Production in Ethiopia
Development of irrigation-based chickpea production is considered the most important alternative approach in
combating climate change and maximizing productivity, especially in moisture-stress areas and in areas where
water and land for irrigation is available. In central Ethiopia, where production of chickpea (especially Kabuli
type) is becoming an important part of agriculture, although many superior varieties (both desi and Kabuli types)
are available, they have been evaluated and released based on rainfed production. Hence, there is an urgent need
for evaluation of varieties suited for irrigation-based production. Towards this goal, during the 2012/13 growing
season, 14 Kabuli genotypes (previously introduced) and 24 desi genotypes (nurseries obtained from ICRISAT)
were evaluated independently at three and one locations respectively (Kabuli at Debre Zeit, Ambo and Werer;
desi at Debre Zeit) for production adaptation under irrigation. The parameters evaluated were date of maturity,
100-seed weight and yield. Overall, while most Kabuli genotypes showed high adaptability to irrigation-based
production at all locations, four Kabuli genotypes (X96TH-52-14/2000 = 106.7DAS, FLIP-02-39C = 107DAS,
X98TH-51-1-3 = 107.9DAS and ICCV-07313 = 107DAS) were found to be earlier in maturity; two genotypes
(ICCV-07313 = 42.5 g and ICCV-04305 = 37.8 g) were identified as having high 100-seed weight and one
genotype (ICCV-05309 = 3228.8 kg/ha or 32 quintals/ha) out yielded all genotypes across locations. The result
of combined analysis indicated five promising genotypes showing more than 20 kg/ha yield on average. All desi
varieties showed maturity dates of under four months; six genotypes showed higher 100-seed weight and eight
genotypes showed promising yield responses (> 2000 kg/ha). From these preliminary results, it can be deduced
that irrigation can play a significantly complementary role to the rainfed system, provided the genetics by
management is optimized through research and innovation
Bioimpedance index for measurement of total body water in severely malnourished children: Assessing the effect of nutritional oedema
Restoration of body composition indicates successful management of severe acute malnutrition (SAM). Bioimpedance (BI) index (height(2)/resistance) is used to predict total body water (TBW) but its performance in SAM, especially with oedema, requires further investigation
Do Multinational enterprises push up wages of domestic firms in the Italian Manufacturing sector?
This paper analyzes the effects of foreign direct investment on wages paid by domestic firms in the Italian manufacturing sector over the period 2002–2007. In particular, the authors investigate the im-pact of multinational enterprises on wages paid by local firms which operate in the same industry, known and horizontal wage spillovers, or have linkages with multinational enterprises in both downstream and upstream industries, known as vertical wage spillovers. By using a large panel dataset, consisting of 551,000 observations, the authors find evidence of wage spillovers only at inter-industry level and, more specifically, for those firms who supply their goods to multinational enterprises, described as backward wage spillovers. Moreover, findings suggest that the wage spillover effect is strongly affected by the technological gap between local and foreign firms: only workers employed in domestic firms with a low-medium technological absorptive capacity seem to benefit from the presence of multinational enterprises in terms of higher wages
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