نتایج جستجو برای: human food chain
تعداد نتایج: 2099966 فیلتر نتایج به سال:
important role in developing new treatments for fungal diseases such as athlete’s foot. “Fungi have a different mechanism from that of animals to produce lysine,” the reporter explained, “so if a drug can be developed that can disable the gene, it should be possible to treat people for fungal diseases without affecting their ability to make lysine”. The writer was presumably unaware that lysine...
In recent years, numerous foodborne outbreaks due to consumption of berry fruit contaminated by human enteric viruses have been reported. This European multinational study investigated possible contamination routes by monitoring the entire food chain for a panel of human and animal enteric viruses. A total of 785 samples were collected throughout the food production chain of four European count...
Background Low-moisture foods, such as nuts, generally have been considered low risk for foodborne illness because they are consumed in a dry state. In low-moisture foods the water activity (available moisture) is too low to support microbial growth. For example, the water activity in tree nuts is generally less than 0.7. This may lead to the common misconception that low levels of pathogenic b...
introduction natural and artificial radionuclides are the main sources of human radiation exposure. these radionuclides, which are present in the environment, can enter the food chain. rice is one of the most important food components in iran. radionuclides by transferring from soil to rice and entering the human body can affect human health. materials and methods fourteen samples of different ...
We analyze the effect of Wal-Mart’s entry into the grocery market using a unique store-level price panel data set. We use OLS and two IV specifications to estimate the effect of Wal-Mart’s entry on competitors’ prices of 24 grocery items across several categories. Wal-Mart’s price advantage over competitors for these products averages approximately 10%. On average, competitors’ response to entr...
polychlorinated dibenzo-p-dioxins (PCDD), whereas 135 congeners belong to the group of polychlorinated dibenzofurans (PCDF). Figure 1 shows general structures of PCCD and PCDF. Dioxins are widespread contaminants with no specific usage and they are not produced. They mostly appear as unwanted byproducts of different industrial processes, combustion in waste incineration, and in the production o...
In this fast-moving era, food plays a vital role in the human mankind lives. It was listed the top 5 needs in the Maslow hierarchy chart. As we moves into the 21 st century, when the economy is fast blooming; humans are acting faster to keep up to the never-ending trend where time plays an important role. Hence, fast food chain has been keeping up to the demand of consumers, which led it to the...
abstract the third millennium has started, but the world is facing with serious challenges in achieving international security and peace. various human rights violations have lead the states to find means to protect human rights. also article 55 of the united nations charter introduces the respect to human rights and fundamental freedom as the most suitable ways to realize peace and security. ...
The food web is one of the oldest and most central organising concepts in ecology and for decades, food chain length has been hypothesised to be controlled by productivity, disturbance, and/or ecosystem size; each of which may be mediated by the functional trophic role of the top predator. We characterised aquatic food webs using carbon and nitrogen stable isotopes from 66 river and floodplain ...
Introduction Natural and artificial radionuclides are the main sources of human radiation exposure. These radionuclides, which are present in the environment, can enter the food chain. Rice is one of the most important food components in Iran. Radionuclides by transferring from soil to rice and entering the human body can affect human health. Materials and Methods Fourteen samples of different ...
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