Technical Change and Total Factor Productivity Growth: The Case of Chinese Provinces In the literature technical change is mostly assumed to be exogenous and specified as a function of time. However, some exogenous external factors other than time can also affect technical change. In this paper we model technical change via time trend (purely external non-economic) as well as other exogenous (e...

Cyclopropane carboxylic acid was fed to Saccharopolyspora erythraea NRRL 18643 (6-deoxyerythromycin producer), resulting in the production of 6-deoxy-13-cyclopropyl-erythromycin B. These studies provide further evidence that deoxyerythronolide B synthase has a relaxed specificity for the starter unit.

since the difference in productivity growth rates in different provinces is a result of regional inequality, efficiency criteria in the development of regional-scale agricultural activities is beneficial. therefore it is important that long-term movements in the provinces to identify differences in productivity levels to take effective measures such as investment more in infrastructure, researc...

Cotton is one of the most-used natural fibres in world due to its relative comfort and strength compared with other fibres. However, processing cotton for manufacturing products consumes a lot water, while harvesting uses significant amounts pesticides. One solution this ecological problem recycle waste. This study investigated effect blending virgin two categories denim waste—sourced during wi...

Cotton (Gossypium hirsutum L.) production in Oklahoma has more than tripled the last ten years. This increase cotton acreage Oklahoma, a region that traditionally produces winter wheat, led to increased incidences of 2,4 D contamination sprayers are used spray crops. is extremely sensitive D, with losses yield and ultimately profit producer cases drift or tank carryover. In this study, six cult...

BACKGROUND Stink bugs represent a major agricultural pest complex attacking more than 200 wild and cultivated plants, including cotton in the southeastern US. Stink bug feeding on developing cotton bolls will cause boll abortion or lint staining and thus reduced yield and lint value. Current methods for stink bug detection involve manual harvesting and cracking open of a sizable number of immat...

This paper selects the panel data of 30 provinces and cities in China from 2009 to 2017, uses threshold effect model investigate non-linear relationship between producer services agglomeration industrial structure upgrading by taking degree lagging one year as variable. The results show that on shows an inverted “U” nonlinear relationship, is, there is optimal level, has a lag.

A survey of internal parasites in Oklahoma swine herds indicates that most of the internal parasites common to swine are widespread in the state, although numbers are somewhat lower than those reported in surveys of states with a greater concentration of swine. A total of90 growing-finishing swine were used to study the effect of anthelmintic treatment regimes and management systems on pig perf...

This study was carried out to determine the impact of type of protein supplementation to the ration on pubertal characteristics of male goat kids. Eighteen crossbred (Nubian × Saanen) weaned male goat kids were distributed to 3 ration groups. Group I (n=6) was kept on a ration supplemented with ground nut cakes, group II (n=6) on a ration supplemented with sesame cakes and group II (n=6) on a r...