New flexible, steerable device placed in live brains by minimally invasive robot
Imperial College London scientists have successfully placed a bioinspired steerable catheter into the brain of an animal for the first time.
37 minutes ago
0
0
Imperial College London scientists have successfully placed a bioinspired steerable catheter into the brain of an animal for the first time.
37 minutes ago
0
0
Autoimmune diseases such as rheumatoid arthritis and multiple sclerosis happen when the immune system is inadvertently activated, mistakenly attacking the body's tissues and organs. Though it is known that genetics play a ...
49 minutes ago
0
8
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic joint inflammation that leads to functional impairment in many sufferers. There are gender-specific differences in the emergence and development ...
1 hour ago
0
12
Hereditary primary haemochromatosis is one of the most common inborn errors of metabolism in Europe. In this disorder, also known as iron storage disease, the body is overloaded with iron. The excess iron accumulates in organs ...
1 hour ago
0
42
A team of researchers at Northwestern University, working with a pair of colleagues from the University of Texas, has found that an increase in thermogenesis in fat cells during active periods of the daily circadian rhythm ...
Scientists have discovered that cervical cancer can be divided into two distinct molecular subgroups—one far more aggressive than the other—as part of the largest "omics" study of its kind, led by researchers at UCL and ...
2 hours ago
0
31
Researchers have developed a system which uses light stimulation to modulate brain waves. This opens up new avenues to explore for possible treatment of conditions such as epilepsy, Parkinson's and migraine.
2 hours ago
0
34
Researchers have made early progress toward a new approach to treating the deadly brain disease amyotrophic lateral sclerosis (ALS): using patients' own immune system T cells.
10 hours ago
0
3
Cancers are the second leading cause of death in the world, after cardiovascular diseases. Their seriousness lies in their diversity—some can be effectively treated with surgery, chemotherapy and radiotherapy, while others ...
19 hours ago
0
2
A long day in the office can leave you empty of energy and overcome with desire for TV and a takeaway. But you've been sitting down all day. So why do you feel as tired as your friends who have physical jobs?
19 hours ago
0
2
The cell is the structural and functional unit of all known living organisms. It is the smallest unit of an organism that is classified as living, and is often called the building block of life. Some organisms, such as most bacteria, are unicellular (consist of a single cell). Other organisms, such as humans, are multicellular. (Humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm; a typical cell mass is 1 nanogram.) The largest known cell is an unfertilized ostrich egg cell.
In 1835 before the final cell theory was developed, a Czech Jan Evangelista Purkyně observed small "granules" while looking at the plant tissue through a microscope. The cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells. All cells come from preexisting cells. Vital functions of an organism occur within cells, and all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.
The word cell comes from the Latin cellula, meaning, a small room. The descriptive name for the smallest living biological structure was chosen by Robert Hooke in a book he published in 1665 when he compared the cork cells he saw through his microscope to the small rooms monks lived in.
This text uses material from Wikipedia, licensed under CC BY-SA