This paper describes an implementation of a large heterogeneous distributed parallel computation that counts the distribution of twin primes and calculates Brun’s constant and maximal distances between pairs of twin primes. Two primes are twins if they differ by two. It is not known if there are infinitely many twin primes but it was proven that the sum of their inverses converges to the value ...

the objective of this study was to assess the level of knowledge of the turkish farmers with regard to fertilizer usage. farmers in the kazova district of turkey's tokat province were interviewed regarding their soil maintenance practices. the interview was based on a standardized questionnaire the answers being recorded at the time of interview. simple random sampling method was used to de...

The present study examined the perception of smallholder pineapple farmers on Global GAP standard compliance, assessed compliant farmers’ rate of adherence to standard requirements, and compared the average farm profit of Global GAP compliant and non-compliant pineapple farmers in Akuapem South Municipal Area of Ghana. The study used mainly farm level data solicited from 150 randomly selected p...

Arguments about the causes of Indian farmer suicides have been widely aired in recent years, both in the media and in academic papers. It is plausible to suppose, as Carleton (1) does, that climate change has an indirect causal effect on the farmer suicide rate via reduced crop yields and increasing debt. It is, however, much less plausible to suppose that there will be a causal link for nonfar...

Genetic conservation and improvement depends (among other things) on the action of local people (CBD, 1994). We know that farmers are extremely knowledgeable about their crops and that they continuously experiment with them and with new materials arriving from various sources (Richards, 1989). Certain farmers are locally recognised as having “expert” knowledge about agro-biodiversity. They are ...

The global agricultural economy is changing. Commodity prices are declining, and producers increasingly supply complex value chains. There is growing interest in how farmers can benefit from emerging market opportunities. Farmers are encouraged to produce high value crops and engage in value-adding activities such as agro-processing. Farmer organization and collective action are often seen as k...