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Optical in Biological Definition

Brain

... lobes that are flanked by two large optical lobes on the left and right (Butler, 2000). ... the brain can be divided into four parts, the optical lobes, the protocerebrum, the deutocerebrum, and the tritocerebrum. The optical lobes are positioned behind each eye and process ...

Microscope

... the first to be invented—is the optical microscope . This is an optical instrument containing one or more lenses ... showTocToggle("show","hide") 1 Simple optical microscope 2 ...

Optical spectrum

... The optical spectrum ( light or visible spectrum ) is the ... human eye . There are no exact bounds to the optical spectrum; a typical human eye will respond to ... at ~555 nm , in the yellow region of the optical spectrum. Wavelengths visible to the eye are ...

Amino acid

... , hydrophilic ( polar ), and hydrophobic ( nonpolar ). Isomerism Except for glycine , where R = H, amino acids occur in two possible optical isomers , called D and L. L amino acids represent the vast majority of amino acids found in proteins . D amino acids are found in some proteins ...

Anton van Leeuwenhoek

... was born in a house at the corner of Lion's Gate in Delft. Van Leeuwenhoek translates as "from lion's corner". Van Leeuwenhoek ground over 500 optical lenses during his lifetime. His microscope was used and improved by Christiaan Huygens for his own investigations into microscopy. He was ...

Bacterium

... 1998;180:4765-4774. Fulltext / PMID 9733676 . External links Tree of Life Videos of bacteria swimming and tumbling, use of optical tweezers and other fine videos. Bacterial Nomenclature Up-To-Date from DSMZ ...

Biological tissue

... , or, in connection with disease, histopathology . The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope , though developments in electron microscopy , immunofluorescence, and frozen sections have all added to the sum of knowledge in the last ...

Biophysics

... gel blotting, fluorescence labeling and in vivo staining are used so that experimental results are observable with an unaided eye or, at most, optical magnification . Using these techniques, biologists attempt to elucidate the complex systems of interactions that give rise to the processes that ...

Chromosome

... chromosomes are condensed and called metaphasic chromosomes. This is the only natural context in which individual chromosomes are visible with an optical microscope . Prokaryotes do not possess histones or nuclei. In its relaxed state, the DNA can be accessed for transcription , regulation, and ...

Diabetes mellitus

... hours or minutes. If left untreated this can result in diabetic coma and death. A blood glucose test strip for an older style (ie, optical color sensing) monitoring system Prolonged and elevated levels of glucose in the blood, which is left unchecked and untreated will, over time, ...

Diffusion

... diffusion of a solute across a selectively permeable membrane . Photon diffusion When photons travel through a material with a high optical depth and a very short mean free path , their behavior is dominated by scattering and the path of any given photon's path is effectively a ...

Bacterium

... 1998;180:4765-4774. Fulltext / PMID 9733676 . External links Tree of Life Videos of bacteria swimming and tumbling, use of optical tweezers and other fine videos. Bacterial Nomenclature Up-To-Date from DSMZ ...
Other Contents
(Date:7/28/2014)... other forms of dementia, but the research community is ... Washington bioengineers have a designed a peptide structure that ... proteins into a state that,s linked to widespread diseases ... and Lou Gehrig,s disease. The synthetic molecule blocks these ... an abnormally folded form by targeting a toxic intermediate ...
(Date:7/28/2014)... Research Hospital study found that 73 percent of adult ... of developing metabolic syndrome and related health problems by ... in the current issue of the journal Cancer ... survivors of childhood cancer in the study had metabolic ... high blood pressure, abdominal obesity, elevated triglyceride and other ...
(Date:7/28/2014)... 2014 Research and Markets has ... Latin America 2014-2018" report to their offering. ... measure and analyze biological data. These systems capture biological ... voice patterns, and hand measurements from the subject and ... The main purpose of a biometrics system is to ...
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(Date:7/28/2014)... Reinberg HealthDay Reporter MONDAY, ... and heart rhythm irregularities are more likely to get a ... In fact, the study of more than 16,000 people found ... likely to get a pacemaker than those without the memory-robbing ... why folks with dementia are so much more likely to ...
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(Date:7/28/2014)... Amy Norton HealthDay Reporter ... are commonly done to relieve sleep apnea in children, but ... weight gain -- especially if they,re already overweight. The ... factor for a range of health problems -- including, ironically, ... who need it. Instead, they said, doctors and parents ...
(Date:7/28/2014)... July 28, 2014 Lourdes Health System ... access and reduced wait times for veterans needing medical ... systems in the state—and the only one in Camden, ... Patient-Centered Community Care program (PC3). PC3 gives veterans access ... hospital cannot provide services due to lack of available ...
(Date:7/28/2014)... The American Society of ... engaged in the field of organ transplantation, today ... Immunology Research Network (TIRN), a professional network ... modern organ transplantation continues to diversify, AST determined ... more opportunities for physicians, scientists and researchers to ...
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