HIV & AIDS

Engineered stem cells seek out, kill HIV in living organisms

(Medical Xpress) -- Expanding on previous research providing proof-of-principal that human stem cells can be genetically engineered into HIV-fighting cells, a team of UCLA researchers have now demonstrated that these cells ...

Medical research

'Stress' protein could halt aging process, say scientists

HSP10 (Heat Shock Protein), helps monitor and organise protein interactions in the body, and responds to environmental stresses, such as exercise and infection, by increasing its production inside cells. Researchers at Liverpool, ...

Immunology

T cells support long-lived antibody-producing cells

If you've ever wondered how a vaccine given decades ago can still protect against infection, you have your plasma cells to thank. Plasma cells are long-lived B cells that reside in the bone marrow and churn out antibodies ...

Obstetrics & gynaecology

US hospital to offer uterus transplants

A leading US hospital said Thursday it is preparing to offer women uterine transplants, a technology that has been proven in Sweden and could help those struggling with infertility.

Medical research

Fluorescent material reveals how cells grow

Fibre from a semiconducting polymer, developed for solar cells, is an excellent support material for the growth of new human tissue. Researchers at Linköping University have shown that the fibre glows, which makes it possible ...

Oncology & Cancer

Fighting cancer with microgravity research

(Phys.org) —For lab-coated cancer biologists, peering through microscopes at stained tissue samples under fluorescent lights, the International Space Station may be the last thing that comes to mind. But 40 years of microgravity ...

page 1 from 8

Life

Life on Earth:

Life (cf. biota) is a characteristic that distinguishes objects that have self-sustaining biological processes ("alive," "living"), from those which do not —either because such functions have ceased (death), or else because they lack such functions and are classified as "inanimate."

In biology, the science that studies living organisms, "life" is the condition which distinguishes active organisms from inorganic matter, including the capacity for growth, functional activity and the continual change preceding death. A diverse array of living organisms (life forms) can be found in the biosphere on Earth, and properties common to these organisms—plants, animals, fungi, protists, archaea, and bacteria — are a carbon- and water-based cellular form with complex organization and heritable genetic information. Living organisms undergo metabolism, maintain homeostasis, possess a capacity to grow, respond to stimuli, reproduce and, through natural selection, adapt to their environment in successive generations. More complex living organisms can communicate through various means.

In philosophy and religion, the conception and nature of life varies, and offer interpretations in the frameworks of existence and consciousness, and touch on many other related issues, such as, ontology, value, life stance, purpose, conceptions of God, the soul and the afterlife.

This text uses material from Wikipedia, licensed under CC BY-SA