نتایج جستجو برای: pulicaria dysenterica

تعداد نتایج: 333  

Journal: :Journal of evolutionary biology 2013
S Schaack D E Allen L C Latta K K Morgan M Lynch

Understanding the impact of spontaneous mutations on fitness has many theoretical and practical applications in biology. Although mutational effects on individual morphological or life-history characters have been measured in several classic genetic model systems, there are few estimates of the rate of decline due to mutation for complex fitness traits. Here, we estimate the effects of mutation...

Journal: :Journal of experimental zoology. Part A, Ecological genetics and physiology 2011
Leigh Clark Latta Shannon Frederick Michael Eugene Pfrender

The life-extending effects of diet restriction are well documented. One evolutionary model that accounts for this widespread conservation is the resource allocation model, where the selected individuals are those that can delay reproduction during periods of resource limitation. In this study, we use closely related species of a model organism, Daphnia, with widely divergent lifespans to addres...

2014
Mujeeb Khan Shams Tabrez Khan Merajuddin Khan Syed Farooq Adil Javed Musarrat Abdulaziz A Al-Khedhairy Abdulrahman Al-Warthan Mohammed Rafiq H Siddiqui Hamad Z Alkhathlan

The antibacterial properties of nanoparticles (NPs) can be significantly enhanced by increasing the wettability or solubility of NPs in aqueous medium. In this study, we investigated the effects of the stabilizing agent on the solubility of silver NPs and its subsequent effect on their antimicrobial activities. Silver NPs were prepared using an aqueous solution of Pulicaria glutinosa plant extr...

2012
Anat Elmann Alona Telerman Sharon Mordechay Hilla Erlank Rivka Ofir

Oxidative stress is involved in the pathogenesis of neurodegenerative diseases such as Parkinson's and Alzheimer's diseases. Astrocytes, the most abundant glial cells in the brain, protect neurons from reactive oxygen species (ROS) and provide them with trophic support, such as glial-derived neurotrophic factor (GDNF). Thus, any damage to astrocytes will affect neuronal survival. In the present...

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