water use productivity is one of the most important factors in scientific agriculture. it is equal to 0. 7 kg of production per cubic meter of irrigation water (kg/m3) in iran which is very low in comparison with advanced countries (1 to 2 kg/m3). current research studies temporal and spatialchanges of water use productivity in hamedan province in iran using geographic information system (gis),...

S OF PAPERS 205 The tool was designed using International Panel on Climate Change (IPCC) emission factors and equations and estimates GHG emissions that occur within the boundaries of the poultry farm that are under the control of the poultry producer. The carbon footprint estimation tool converts farm inputs into carbon footprint equivalents (CO2e). These farm inputs include energy bills such ...

We show that there exist two proper creature forcings having a simple (Borel) definition, whose product is not proper. We also give a new condition ensuring properness of some forcings with norms.

To address technology impact at the household level, farms were selected in two broad agro-ecological zones, Kampala and Highland. The Kampala zone was delineated as a “new” region with a substantial milkshed that was not delineated with the Kenya agro-ecological extrapolation. Since the “Horticultural” zone and Kenya dominated the landscape where dairying occurred outside of the Kampala milksh...

Natural products account for a significant proportion of modern day therapeutic agents. However, the discovery of novel compounds is hindered by the isolation process, which often relies upon extraction and chromatographic separation techniques. These methods, which are dependent upon the physicochemical properties of the compounds, have a limited ability to both purify and concentrate the mino...

The convergent total synthesis of the marine natural product (+)-bistramide C confirms the a priori assignments of its relative and absolute configurations, which were originally based on the combined application of [alpha]D analysis, NMR, and synthesis.

The use of digital, IT-based components in physical products is becoming increasingly relevant in practice. Surprisingly, the strategic impact of these “digitized products” has not received a lot of attention in IS research so far. Extant papers on the topic rely on ambiguous terminology (e.g., “smart products”, “cyberphysical systems”, “digital product-service systems”) and underlying concepts...

Ten members of the mezzettiaside family of natural products were synthesized and evaluated for anticancer and antibacterial activity. Complete anticancer (H460) and antibacterial (B. subtilis) activities for the ten natural products and four new analogues were found. Comparison to the cleistrioside and cleistetroside classes of natural products were made.

Peptidic natural products (PNPs) are widely used compounds that include many antibiotics and a variety of other bioactive peptides. Although recent breakthroughs in PNP discovery raised the challenge of developing new algorithms for their analysis, identification of PNPs via database search of tandem mass spectra remains an open problem. To address this problem, natural product researchers use ...