منابع مشابه
Ancient Protein Partners Take on Additional Roles in Multicellular Animals
The dramatic improvements which have occurred over the past 20 years in the management of children and young people with cancer, along with the recognition of significant late effects of treatment, has led to a reappraisal of the overall philosophy of management. At a time when most children died of their disease a policy of cure 'at any cost' was justified. Now we have moved into an era of cur...
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Peter Mühlhäusler is the Foundation Professor of Linguistics at the University of Adelaide, and Supernumerary Fellow of Linacre College, Oxford. He has taught at the Technical University of Berlin and in the University of Oxford. He is an active researcher in several areas of linguistics, including ecolinguistics, language planning, and language policy and language contact in the Australian-Pac...
متن کاملON THE CONGRUENCE ax
We give bounds on the number of solutions to the Diophantine equation (X +1/x)(Y +1/y) = n as n tends to infinity. These bounds are related to the number of solutions to congruences of the form ax + by ≡ 1 modulo xy.
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I show that the natural selection of metabolism and mass can select for the major life-history and allometric transitions that define lifeforms from viruses, over prokaryotes and larger unicells, to multicellular animals. The proposed selection is driven by a mass-specific metabolism that is selected as the pace of the resource handling that generates net energy for self-replication. An initial...
متن کاملXenobiotics and the evolution of multicellular animals: emergence and diversification of ligand-activated transcription factors.
Multicellular animals, which evolved about 700 to 1,000 myr ago, contain many of the genes found in yeast. Important for the evolution of multicellular animals were new pathways for intercellular signaling that regulated more complex physiological responses. Here we focus on the contribution to this process of lipophilic molecules that interact with nuclear receptors and the aryl hydrocarbon re...
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ژورنال
عنوان ژورنال: Integrative and Comparative Biology
سال: 2004
ISSN: 1540-7063,1557-7023
DOI: 10.1093/icb/44.2.194