37 research outputs found
Knowledge and Roles of Non Governmental Organizations (NGOs) in Climate Change Mitigation and Adaptation in Anambra State
The study ascertained knowledge and perceived roles of state based-Non
Governmental Organizations (NGOs) in climate change mitigation and
adaptation in Anambra State, Nigeria. Multistage random sampling technique was employed to select thirty five respondents from 4 local government areas and 7 NGOs in the state while data were collected with questionnaire. Percentage and mean scores were used in analyzing the data. Results revealed that greater proportion (60%) of NGO members were not aware of climate change while about 63% indicated that issues on climate change have not been included in their programme. They perceived major causes of climate change as over industrialization (M=2.77) and use of automobiles (M=2.74) while land degradation and over flooding (M=2.77 each) were major effects of climate change. Proper land use and management (M=2.89) and reforestation/ (M=2.83) were mitigation measures while minimum tillage (M=2.74) and use of resistant varieties (M=) were adaptive measures to climate change as perceived
by them. They further perceived creation of awareness and sensitization of rural people/farmers about climate change (77.1%each) and helping government in enforcement of policies and laws that will help to mitigate climate change (57.1%) as roles they can play in climate change mitigation and adaptation. They did not perceive any major problem that can mar their contributions to climate change issue. The study emphasized on the need for private sector especially NGOs investment and participation in global and sensitive issues like climate change. This will go a long way in discovering and disseminating quick and useful information on climate change and probably ultimate solution to it
Knowledge and Roles of Non Governmental Organizations (NGOs) in Climate Change Mitigation and Adaptation in Anambra State
The study ascertained knowledge and perceived roles of state based-Non
Governmental Organizations (NGOs) in climate change mitigation and
adaptation in Anambra State, Nigeria. Multistage random sampling technique was employed to select thirty five respondents from 4 local government areas and 7 NGOs in the state while data were collected with questionnaire. Percentage and mean scores were used in analyzing the data. Results revealed that greater proportion (60%) of NGO members were not aware of climate change while about 63% indicated that issues on climate change have not been included in their programme. They perceived major causes of climate change as over industrialization (M=2.77) and use of automobiles (M=2.74) while land degradation and over flooding (M=2.77 each) were major effects of climate change. Proper land use and management (M=2.89) and reforestation/ (M=2.83) were mitigation measures while minimum tillage (M=2.74) and use of resistant varieties (M=) were adaptive measures to climate change as perceived
by them. They further perceived creation of awareness and sensitization of rural people/farmers about climate change (77.1%each) and helping government in enforcement of policies and laws that will help to mitigate climate change (57.1%) as roles they can play in climate change mitigation and adaptation. They did not perceive any major problem that can mar their contributions to climate change issue. The study emphasized on the need for private sector especially NGOs investment and participation in global and sensitive issues like climate change. This will go a long way in discovering and disseminating quick and useful information on climate change and probably ultimate solution to it
Evaluating effectiveness and constraints of private sector agricultural extension services of the Green River Project in Imo and Rivers States, Nigeria
Background: Oil exploration operations decreased the cultivable lands of rural people in the study area, leading to the establishment of the Green River Project (GRP). This study assessed the effectiveness and constraints of private sector extension services of GRP in Imo and Rivers States, Nigeria.
Objectives: To analyse the roles and effectiveness of, as well as constraints to, the GRP in the area.
Method: A multistage sampling technique was used to select 120 respondents. Descriptive statistics, factor analysis, chi square and t-test were used to analyse the data.
Results: Roles of GRP in farming technologies dissemination included training of farmers on fish pond construction technique and maintenance of good pH levels. There was significant improvement in standard of living (X2 = 15.7; p ≤ 0.05) and size of production (t = 6.398; p ≤ 0.05) of the respondents after participation. In terms of the effectiveness of private sector deliveries on public policies, the programme had effect on beneficiaries’ access to credit, education of wards and poverty reduction. But it is worthy to note that the observed changes may not have been solely caused by the GRP, given that there could be many other factors affecting fish farming, either positively or negatively. Serious implementation constraints to effective performance of GRP included organisational, input and sustainability constraints.
Conclusion: It was recommended that there should be timely provision of sufficient inputs to farmers and measures to improve organisation of private sector extension services in the area in order to enhance development
Clinical and pharmacogenetic predictors of circulating atorvastatin and rosuvastatin concentrations in routine clinical care
Background-A barrier to statin therapy is myopathy associated with elevated systemic drug exposure. Our objective was to examine the association between clinical and pharmacogenetic variables and statin concentrations in patients. Methods and Results-In total, 299 patients taking atorvastatin or rosuvastatin were prospectively recruited at an outpatient referral center. The contribution of clinical variables and transporter gene polymorphisms to statin concentration was assessed using multiple linear regression. We observed 45-fold variation in statin concentration among patients taking the same dose. After adjustment for sex, age, body mass index, ethnicity, dose, and time from last dose, SLCO1B1 c.521T\u3eC (P\u3c0.001) and ABCG2 c.421C\u3eA (P\u3c0.01) were important to rosuvastatin concentration (adjusted R2=0.56 for the final model). Atorvastatin concentration was associated with SLCO1B1 c.388A\u3eG (P\u3c0.01) and c.521T\u3eC (P\u3c0.05) and 4β-hydroxycholesterol, a CYP3A activity marker (adjusted R2=0.47). A second cohort of 579 patients from primary and specialty care databases were retrospectively genotyped. In this cohort, genotypes associated with statin concentration were not differently distributed among dosing groups, implying providers had not yet optimized each patient\u27s risk-benefit ratio. Nearly 50% of patients in routine practice taking the highest doses were predicted to have statin concentrations greater than the 90th percentile. Conclusions-Interindividual variability in statin exposure in patients is associated with uptake and efflux transporter polymorphisms. An algorithm incorporating genomic and clinical variables to avoid high atorvastatin and rosuvastatin levels is described; further study will determine whether this approach reduces incidence of statin myopathy. © 2013 American Heart Association, Inc
Self-assembled photosystem-I biophotovoltaics on nanostructured TiO2 and ZnO
The abundant pigment-protein membrane complex photosystem-I (PS-I) is at the heart of the Earth’s energy cycle. It is the central molecule in the “Z-scheme” of photosynthesis, converting sunlight into the chemical energy of life. Commandeering this intricately organized photosynthetic nanocircuitry and re-wiring it to produce electricity carries the promise of inexpensive and environmentally friendly solar power. We here report that dry PS-I stabilized by surfactant peptides functioned as both the light-harvester and charge separator in solar cells self-assembled on nanostructured semiconductors. Contrary to previous attempts at biophotovoltaics requiring elaborate surface chemistries, thin film deposition, and illumination concentrated into narrow wavelength ranges the devices described here are straightforward and inexpensive to fabricate and perform well under standard sunlight yielding open circuit photovoltage of 0.5 V, fill factor of 71%, electrical power density of 81 µW/cm2 and photocurrent density of 362 µA/cm2, over four orders of magnitude higher than any photosystem-based biophotovoltaic to date
Cell-free H-cluster Synthesis and [FeFe] Hydrogenase Activation: All Five CO and CN− Ligands Derive from Tyrosine
[FeFe] hydrogenases are promising catalysts for producing hydrogen as a sustainable fuel and chemical feedstock, and they also serve as paradigms for biomimetic hydrogen-evolving compounds. Hydrogen formation is catalyzed by the H-cluster, a unique iron-based cofactor requiring three carbon monoxide (CO) and two cyanide (CN−) ligands as well as a dithiolate bridge. Three accessory proteins (HydE, HydF, and HydG) are presumably responsible for assembling and installing the H-cluster, yet their precise roles and the biosynthetic pathway have yet to be fully defined. In this report, we describe effective cell-free methods for investigating H-cluster synthesis and [FeFe] hydrogenase activation. Combining isotopic labeling with FTIR spectroscopy, we conclusively show that each of the CO and CN− ligands derive respectively from the carboxylate and amino substituents of tyrosine. Such in vitro systems with reconstituted pathways comprise a versatile approach for studying biosynthetic mechanisms, and this work marks a significant step towards an understanding of both the protein-protein interactions and complex reactions required for H-cluster assembly and hydrogenase maturation
Practices of farmers in production and marketing of tomato in Nsukka Local Government Area of Enugu State, Nigeria
The study described socio-economic characteristics, production, consumption and marketing patterns of tomato farmers as well as constraints they encounter in tomato production in Nsukka Local Government Area of Enugu State, Nigeria. One hundred and twenty tomato farmers randomly selected form twelve villages in the area constituted sample for the study. Data were collected with interview schedule and questionnaire and were presented with frequency, percentage and mean scores. Findings show that the respondents were mainly married (71%) women (72.5%) who were literate with mean age and mean farming experience of 42.22 years and 17.21years respectively. Greater proportion of the respondents grew tomatoes on communal land (31.7%) with personal savings (42.5%) and hired labour (45%). They grew tomatoes during rainy season (54.1%) using personal reserved seeds (53.3%). Lack/poor storage facility (M=2.00) and fluctuation in price of tomato (M = 2.13) were some of the serious constraints to production and marketing of tomatoes respectively in the area. The study recommends that government, non-governmental organisations, self help development organisations/agencies as well as philanthropists should assist in provision of storage facilities for tomatoes so as to reduce losses and ensure preservation and availability of the product all year round at reasonable and stable price
Practices of farmers in production and marketing of tomato in Nsukka Local Government Area of Enugu State, Nigeria
The study described socio-economic characteristics, production, consumption and marketing patterns of tomato farmers as well as constraints they encounter in tomato production in Nsukka Local Government Area of Enugu State, Nigeria. One hundred and twenty tomato farmers randomly selected form twelve villages in the area constituted sample for the study. Data were collected with interview schedule and questionnaire and were presented with frequency, percentage and mean scores. Findings show that the respondents were mainly married (71%) women (72.5%) who were literate with mean age and mean farming experience of 42.22 years and 17.21years respectively. Greater proportion of the respondents grew tomatoes on communal land (31.7%) with personal savings (42.5%) and hired labour (45%). They grew tomatoes during rainy season (54.1%) using personal reserved seeds (53.3%). Lack/poor storage facility (M=2.00) and fluctuation in price of tomato (M = 2.13) were some of the serious constraints to production and marketing of tomatoes respectively in the area. The study recommends that government, non-governmental organisations, self help development organisations/agencies as well as philanthropists should assist in provision of storage facilities for tomatoes so as to reduce losses and ensure preservation and availability of the product all year round at reasonable and stable price
Practices of Farmers in Production and Marketing of Tomato in Nsukka Local Government Area of Enugu State, Nigeria
The study described socio-economic characteristics, production, consumption and marketing patterns of tomato farmers as well as constraints they encounter in tomato production in Nsukka Local Government Area of Enugu State, Nigeria. One hundred and twenty tomato farmers randomly selected form twelve villages in the area constituted sample for the study. Data were collected with interview schedule and questionnaire and were presented with frequency, percentage and mean scores. Findings show that the respondents were mainly married (71%) women (72.5%) who were literate with mean age and mean farming experience of 42.22 years and 17.21years respectively. Greater proportion of the respondents grew tomatoes on communal land (31.7%) with personal savings (42.5%) and hired labour (45%). They grew tomatoes during rainy season (54.1%) using personal reserved seeds (53.3%). Lack/poor storage facility (M=2.00) and fluctuation in price of tomato (M = 2.13) were some of the serious constraints to production and marketing of tomatoes respectively in the area. The study recommends that government, non-governmental organisations, self help development organisations/agencies as well as philanthropists should assist in provision of storage facilities for tomatoes so as to reduce losses and ensure preservation and availability of the product all year round at reasonable and stable price