نتایج جستجو برای: protecting natural passage and

تعداد نتایج: 16893104  

Journal: :Current Biology 2005
Nigel Williams

The recent tsunami in the Indian Ocean is the latest and most devastating natural disaster to highlight the value of mangrove forest and other natural defences in protecting vulnerable coastal communities.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم طبیعی 1391

in recent years many researchers have been focused on interaction of small molecules with dna. dna is generally the primary intracellular of anticancer drugs, so the interaction between small molecules and dna can cause dna damage in cancer cells, blocking the division of cancer cells and resulting in cell death. the flavonoids are a large group of polyphenolic natural products that are widely ...

Journal: :Coatings 2022

Nowadays, the use of biodegradable and bio-derived plastics such as poly(lactic acid) (PLA) cellulose in food packaging applications are replacing different more conventional oil-derived polymers that much expensive unsuitable for environment. However, their high transparency to ultraviolet (UV) radiation limits current commercialization. Therefore, this study focuses on deposition organic thin...

Journal: :The journal of the Japanese Practical Surgeon Society 1980

Journal: :مرتع و آبخیزداری 0
زهرا نیکبخت دانشجوی کارشناسی ارشد مرتع داری، گروه مرتع و آبخیزداری، دانشگاه فردوسی مشهد، ایران محمد فرزام دانشیار؛ گروه مرتع و آبخیزداری، دانشگاه فردوسی مشهد، ایران. محمد خواجه حسینی دانشیار، گروه زراعت، دانشگاه فردوسی مشهد، ایران حمید اجتهادی استاد، گروه زیست شناسی، دانشگاه فردوسی مشهد، ایران

the study of soil seed bank provides useful information on management and restoration of natural ecosystems. in the arid environments, some perennial plants may cause accumulation of seed bank under their canopy, thereby protecting them against the livestock herbivory and the other environmental factors. this study was conducted with objective to investigate effect of perennial plants on densit...

Journal: :Journal of bacteriology 2003
Francisco Ramos-Morales Ana I Prieto Carmen R Beuzón David W Holden Josep Casadesús

Passage through the digestive tract exposes Salmonella enterica to high concentrations of bile salts, powerful detergents that disrupt biological membranes. Mutations in the wecD or wecA gene, both of which are involved in the synthesis of enterobacterial common antigen (ECA), render S. enterica serovar Typhimurium sensitive to the bile salt deoxycholate. Competitive infectivity analysis of wec...

2015
Adam G. Kaplan Glenn M. Preminger Michael E. Lipkin

Complex endourologic procedures may require the use of a combined ureteroscopic and percutaneous approach. Endoscopic removal of a retained 4-wire ureteral stone basket is particularly complex, as broken tines can potentially injure the ureter if the basket is removed in a retrograde manner. The patient in this case presented with a ureteral stone basket embedded within the urothelium of the up...

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