Sentences with phrase «lived model organisms»

Interspecies comparison and the introduction of specific genetic changes in short - and long - lived model organisms are used to delineate genetic factors influencing the aging process.

Not exact matches

For the first time ever, scientists have developed a complete model of an organism, accounting for every molecular interaction in the entire life span of the bacterium Mycoplasma genitalium.

According to his model, personality is conceived as a dynamic living organism made up of a number of interacting dynamisms and subdynamisms recognizable by a recurring pattern of identity.

Birch and Cobb maintain that the ecological model is more adequate than the mechanical model for explaining DNA, the cell, other biological subject matter (as well as subatomic physics), because it holds that living things behave as they do only in interaction with other things which constitute their environment (LL 83) and because «the constituent elements of the structure at each level (of an organism) operate in patterns of interconnectedness which are not mechanical» (LL 83).

What Whitehead denotes as the «social order» of the higher living beings can no longer be understood on the model of a society with its emphasis on multiplicity, but only on that of an organism focusing on unity.

Geneticists and information scientists have built and are building models for the transition of organic molecules to self - replicating living organisms, based on theories of Earth's early development provided by astronomers, geologists, and oceanographers and on the evidence of fossilized microorganisms discovered by paleontologists.

The obvious key to living longer is to eat less, and significantly cutting calories has been shown to lengthen life span substantially in model organisms such as worms and mice.

«We have now developed the first model where we can observe the development of a stem cell into a mature blood cell in a living organism.»

«A new model organism for aging research: The short - lived African killifish.»

The fruit fly Drosophila melanogaster has a life expectancy of approx. 8 weeks and belongs to the model organisms studied by scientists at the Max Planck Institute for Biology of Ageing in their quest to understand aging in living beings.

Finch's ideas about senescence from his grad school days have also held up: The popularity of the Hayflick model has declined as other research questioned its relevance to aging in whole organisms, and recent studies in long - lived nematodes have confirmed Finch's hunch that brain hormones control aging (see Johnson Review).

Different model organisms like the fruit fly Drosophila melanogaster are used for their research, aimed at decoding the principles of stem cell control with the aim to also apply them to higher forms of life and eventually humans.

The team modelled how the membrane changed, enabling LUCA's descendants to move to new, more challenging environments and evolve into two distinct types of single - celled organism, bacteria and archaea, creating the deepest branch of the tree of life.

But in living choanoflagellates, King believes researchers have a model organism to compare with animals and dissect the roots of animal multicellularity.

They found both models showed a general feeding structure throughout the plankton food web: The smallest organisms were too small to ingest prey, while the largest plankton were poor competitors when living by photosynthesis.

The researchers studied this adaptive bacterial life cycle using Bacillus subtilis as a model organism.

A new study from the University of Michigan Life Sciences Institute now reveals how some of that cross-talk between tissues occurs in a common model organism.

Medaka fish are considered model organisms for life science research, which means they have characteristics that allow them easily to be maintained, reproduced and studied.

The team of Luis Lopez - Molina, professor at the Department of Botany and Plant Biology of UNIGE's Faculty of Science, Switzerland, has been interested for a long time in the mechanisms controlling germination, arguably the most critical decision in the life of a plant: «We have discovered that the genes involved in the synthesis of cutin, a waterproof substance, are important for the maintenance of dormancy in seeds of Arabidopsis thaliana, a small plant widely used as a model organism to study plant biology.

«The fruit fly is a well - known model organism used to understand human biology as it, like all other living organisms, has to fend off various viral infections.

«The key breakthrough came from using a fruit fly model of human ALS and FTD that allowed us to screen these 400 candidates for ones that block brain cell death in a living organism,» says Lloyd.

Zebrafish is a an outstanding model organism to investigate these questions due to its advantages in live imaging and its improving ease of genetic manipulations.

We address these questions by combining genetics with live imaging, quantitative image analysis and biophysical approaches using the fruit fly Drosophila melanogaster as a model organism.

Dietary restriction and the modulation of nutrient - sensing pathways are robust and reproducible interventions that extend life / healthspan in model organisms.

Spheroids serve as models for the development of healthy tissues and their maintenance in the living organism but also as models for tumor growth (Pampaloni et al. 2007).

We established the red flour beetle Tribolium castaneum as an EvoDevo model organism in our group and developed a non-invasive long - time fluorescence live imaging protocol for Tribolium embryos for our LSFMs.

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For another, supplemental spermidine prolongs the life of living organisms often used as models for longevity science.

The augmentation or «optimization» of the human organism is completely redefining conventional concepts and lifestyles — from business models to human life cycles, including the concept of dying.

Tough to model, but living organisms aren't trivial in affecting how climate works, and changes in what's alive where and when are feedbacks to climate change.

(See culture) Experience — Refers in IPARTheory's phylogenetic perspective and the phylogenetic model to anything that individuals perceive or anything to which they react as living organisms.