PURPOSE To evaluate the age-related change in contrast sensitivity seen in a middle-aged to elderly Japanese population. METHODS Contrast sensitivity and visual acuity were measured in subjects aged 40 to 79 years randomly recruited from a community in Aichi prefecture near Nagoya, Japan. Contrast sensitivity tests were performed using the Vistech contrast sensitivity test chart (VCTS 6500). ...

Using dynamic panel models with data for 62 developing countries, this paper examines whether growth in agriculture elicits growth in manufacturing. For identification, I use population-weighted, average temperature as an instrument for growth in agriculture. I identify large short-run effects: An increase in growth in agriculture by one percentage point is estimated to raise contemporaneous gr...

introduction agriculture has a long-time connection with living in village. agriculture is constituted the most important part of iran’s economy. it constitutes about ¼ of gdp and 30 percent of employed peoples who work in agriculture-related activities. green revolution has had positive effects, though it has faced with issues such as equality and continuity and endurance of land ownership tha...

We establish certain “nontriviality” results for several filtrations of the smooth and topological knot concordance groups. First, as regards the n-solvable filtration of the topological knot concordance group, C, defined by K. Orr, P. Teichner and the first author: 0 ⊂ · · · ⊂ F(n.5) ⊂ F(n) ⊂ · · · ⊂ F(1.5) ⊂ F(1.0) ⊂ F(0.5) ⊂ F(0) ⊂ C, we refine the recent nontriviality results of Cochran and...

BACKGROUND Addressing vulnerability to heat-related mortality is a necessary step in the development of policies dictated by heat action plans. We aimed to provide a systematic assessment of the epidemiologic evidence regarding vulnerability to heat-related mortality. METHODS Studies assessing the association between high ambient temperature or heat waves and mortality among different subgrou...

As we all know that the Agriculture plays an important role in Indian economy and majority of individuals depends upon it offers huge amount crops through worldwide. The Illnesses these are generally on leaf’s influences decrease both quality number horticultural items. We should disease crop correctly to solve problem. There will be a loss if do not find treat properly. view natural eye isn’t ...

This paper concludes that, for economic development, and to ensure survival, Kenya and similar countries must industrialize their economy and mechanize their agriculture using modern large scale methods. Keywords—Agriculture, mechanazation, transformation, industrialization.