Farmers are frequently exposed to ultraviolet（UV） radiation which causes various diseases by inducing oxidative stress.This study aimed to assess the effects of sunblock on oxidative stress in the body.Eighty-seven ...Farmers are frequently exposed to ultraviolet（UV） radiation which causes various diseases by inducing oxidative stress.This study aimed to assess the effects of sunblock on oxidative stress in the body.Eighty-seven farmers were divided into two groups：those who wore sunblock for five days and those who did not.The total antioxidant capacity（TAC） in urine,which is an antioxidant indicator,and 8-hydroxy-2-deoxyguanosine（8-OHdG） levels in urine,an oxidative stress indicator,were measured.The urinary TAC of sunblock users was significantly higher than that of non-users,but urinary 8-OHdG levels were not significantly different.Even after adjustment for potential confounders,urinary TAC was found to be markedly increased with sunblock usage.These results suggest that sunblock is effective in preventing oxidative stress among farmers.In addition,they show that urinary TAC can be used as a good effect marker of oxidative stress caused by UV exposure.展开更多
This work examined the determinants of the adoption of improved Irish potato technologies by farmers in three divisions of the Western Region of Cameroon. Data were collected from 170 farmers from 14 villages in our s...This work examined the determinants of the adoption of improved Irish potato technologies by farmers in three divisions of the Western Region of Cameroon. Data were collected from 170 farmers from 14 villages in our study area using a mixed-method approach—structured questionnaires, focus group discussion, key informant interviews, and participatory observations with individual farmers and farmers belonging to cooperative and common initiative groups. The study employed descriptive statistics and regression analysis to assess the adoption status of farmers and its determinants. The logistic regression analysis showed that farmers’ experience in the cultivation of potatoes, the number of follow-ups, and access to extension facilities after training had a significant positive effect on the adoption of these new technologies while membership to an association had a significant negative effect. Additionally, farmers who received improved seeds from NGOs were more likely to adopt a technology than those who did not. Our results suggested that constant follow-up and training of experienced farmers and the provision of improved potato seeds have the potential of maintaining high rates of Irish potato adoption west in Cameroon irrespective of whether they belong to cooperative or not. We recommend that the number of follow-ups, extension training, and market linkages for farmers should be increased. Additionally, more farmers should join farmer groups such as cooperatives or common initiative groups to increase their awareness rate and adopt improved potato innovation through farm extension.展开更多
基金supported by Ministry of Agriculture,Food and Rural Affairs,Republic of Korea
文摘Farmers are frequently exposed to ultraviolet（UV） radiation which causes various diseases by inducing oxidative stress.This study aimed to assess the effects of sunblock on oxidative stress in the body.Eighty-seven farmers were divided into two groups：those who wore sunblock for five days and those who did not.The total antioxidant capacity（TAC） in urine,which is an antioxidant indicator,and 8-hydroxy-2-deoxyguanosine（8-OHdG） levels in urine,an oxidative stress indicator,were measured.The urinary TAC of sunblock users was significantly higher than that of non-users,but urinary 8-OHdG levels were not significantly different.Even after adjustment for potential confounders,urinary TAC was found to be markedly increased with sunblock usage.These results suggest that sunblock is effective in preventing oxidative stress among farmers.In addition,they show that urinary TAC can be used as a good effect marker of oxidative stress caused by UV exposure.
文摘This work examined the determinants of the adoption of improved Irish potato technologies by farmers in three divisions of the Western Region of Cameroon. Data were collected from 170 farmers from 14 villages in our study area using a mixed-method approach—structured questionnaires, focus group discussion, key informant interviews, and participatory observations with individual farmers and farmers belonging to cooperative and common initiative groups. The study employed descriptive statistics and regression analysis to assess the adoption status of farmers and its determinants. The logistic regression analysis showed that farmers’ experience in the cultivation of potatoes, the number of follow-ups, and access to extension facilities after training had a significant positive effect on the adoption of these new technologies while membership to an association had a significant negative effect. Additionally, farmers who received improved seeds from NGOs were more likely to adopt a technology than those who did not. Our results suggested that constant follow-up and training of experienced farmers and the provision of improved potato seeds have the potential of maintaining high rates of Irish potato adoption west in Cameroon irrespective of whether they belong to cooperative or not. We recommend that the number of follow-ups, extension training, and market linkages for farmers should be increased. Additionally, more farmers should join farmer groups such as cooperatives or common initiative groups to increase their awareness rate and adopt improved potato innovation through farm extension.
