Aging and Death in an Organism That Reproduces by Morphologically Symmetric Division
نویسندگان
چکیده
منابع مشابه
Aging and Death in an Organism That Reproduces by Morphologically Symmetric Division
In macroscopic organisms, aging is often obvious; in single-celled organisms, where there is the greatest potential to identify the molecular mechanisms involved, identifying and quantifying aging is harder. The primary results in this area have come from organisms that share the traits of a visibly asymmetric division and an identifiable juvenile phase. As reproductive aging must require a dif...
متن کاملAging and Death in an Organism that Reproduces by Morphologically Symmetric Division Running Title: Aging in a Symmetrically Dividing Organism
In macroscopic organisms, aging is often obvious; in single-celled organisms, where there is the greatest potential to identify the molecular mechanisms involved, identifying and quantifying aging is harder. The primary results in this area have come from organisms that share the traits of a visibly asymmetric division, and an identifiable juvenile phase. As reproductive aging must require a di...
متن کاملAn Electronic Flipbook that Reproduces Riffling Interaction
The authors propose a novel book-shaped device for flipbooks called Paranga that embodies both physical features of paper and e-book interactivity. Paranga detects how quickly a user is riffling and provides the user with visual, tactile, and auditory feedbacks of turned pages by employing an LCD monitor and a rotatable roller mechanism with pieces of real paper. Using this device, the authors ...
متن کاملUpper and lower bounds of symmetric division deg index
Symmetric Division Deg index is one of the 148 discrete Adriatic indices that showed good predictive properties on the testing sets provided by International Academy of Mathematical Chemistry. Symmetric Division Deg index is defined by $$ SDD(G) = sumE left( frac{min{d_u,d_v}}{max{d_u,d_v}} + frac{max{d_u,d_v}}{min{d_u,d_v}} right), $$ where $d_i$ is the degree of vertex $i$ in graph $G$. In th...
متن کاملPhenoptosis: programmed death of an organism.
Programmed cell death (apoptosis) is well-established in many multicellular organisms. Apoptosis purifies a tissue from cells that became useless or even harmful for the organism. Similar phenomena are already described also at subcellular level (suicide of mitochondria, i.e., mitoptosis) as well as at supracellular level (degradation of some organs temporarily appearing in the course of ontoge...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: PLoS Biology
سال: 2005
ISSN: 1545-7885
DOI: 10.1371/journal.pbio.0030045