Increased cost of tobacco cultivation is a major concern for its sustainable production in Iran. Therefore, the development of tobacco mechanized cultivation is a necessity. Given this, the driving and inhibiting factors of the development of mechanized tobacco cultivation were investigated by the Delphi technique in three rounds in Guilan Province, Iran. Nineteen experts from the Jahad Agricul...

Ricardo after Sraffa In the preface of the Principles (1817), Ricardo states that the main problem of Political Economy concerns the distribution of income among the three classes of society: the capitalists, the workers and the landowners, who receive the profits, the wages and the rents, respectively. When rent is discarded, the trade-off between wages and profits becomes apparent. Nowadays, ...

Cultivation in semiarid grasslands induces large changes in soil organic matter (SOM) stock. To better predict the effects of cultivation on SOM pools, there is a need to identify the soil fractions that are affected and the extent to which they are affected. Using four cultivation chronosequences in Inner Mongolian grasslands of northern China, we investigated the changes in soil organic carbo...

Nuclear power generation is being promoted globally as a clean energy source and one of China’s key tools for addressing carbon peaking neutrality. The Niushan Island China was selected the research area conducted detailed seasonal surveys at sea to explore spatial distribution pattern marine aquaculture around nuclear project analyze potential impact island construction on major species. resul...

Human amnion tissue is readily available to most laboratories as a source of cells for tissue culture studies. It has proved to be a useful tool in the field of virus research, and it offers impor tant potentials in the field of cancer research as a source of normal human cells easily obtained in primary cultivation. Many investigators have been concerned with the problem of malignant propertie...

1. A strain of neurovaccine virus was cultivated in a medium consisting of minced chick embryo suspended in Tyrode's solution. 2. The virus upon cultivation apparently lost none of its essential characteristics. 3. The culture virus can be preserved and stored for long periods of time. Furthermore, the preserved virus can be used to initiate fresh cultures.

There is a variety of methods used for growing plants indoor for laboratory research. In most cases plant research requires germination and growth of plants. Often, people have adapted plant cultivation protocols to the conditions and materials at hand in their own laboratory and growth facilities. Here I will provide a guide for growing some of the most frequently used plant species for resear...

A REPORT by a working party of the Public Health Laboratory Service on the laboratory diagnosis of tuberculosis, reported in the Monthly Bulletin of the Ministry of Health and Public Health Laboratory Service (August, 1952, Vol. 11, p. 187 onwards) and referred to in the Bulletin of Hygiene (September, 1953, 28, 748), lays out the best methods of homogenization of sputa prior to culture on Lowe...