Navigation Links
Spectrum in Biological Definition

Absorption spectrum

... An absorption spectrum is a diagram depicting the wavelengths of ... can be regarded as the opposite to an emission spectrum , which is a depiction of the specific ... this results in dark absorption lines seen in the spectrum when viewed through a spectroscope . The ...

Optical spectrum

... The optical spectrum ( light or visible spectrum ) is the portion of the electromagnetic spectrum that is visible to the human eye . There ...

Biology

... and individuals come into existence, and the interactions they have with each other and with their environment . Biology encompasses a broad spectrum of academic fields that are often viewed as independent disciplines. Together, they study life over a wide range of scales . Life is studied at ...

Barbiturate

... Barbiturates are drugs that acts as central nervous system (CNS) depressants , and by virtue of this they produce a wide spectrum of effects, from mild sedation to anesthesia . Some also are used as anticonvulsants . Barbiturates are derivatives of barbituric acid. ...

Chlorophyll

... to convert carbon dioxide and water to carbohydrates and oxygen . Chlorophyll absorbs most in the red and blue portions of the electromagnetic spectrum , thus its intense green color. Chemical structure Chlorophyll is a chlorin pigment, which is structurally similar to porphyrin pigments ...

Photosynthesis

... In plants, there are two photosystems involved, which are most active at 700 and 680 nm . However, other wavelengths are also peaks in the action spectrum for photosynthesis. Photosynthesis begins when light ionizes a chlorophyll molecule, releasing two electrons , which are transferred along an ...

Immune system

... innate immune system. Innate immunity fights pathogens using defenses that are quickly mobilized and triggered by receptors that recognize a broad spectrum of pathogens. Plants and many lower animals do not possess an adaptive immune system and instead rely on innate immunity. The study of the innate ...

Magnetic resonance imaging

... relative to those of surrounding regions. MR spectroscopy, however, provides a wealth of chemical information about that region, as would an NMR spectrum of that region. Functional MRI Functional MRI (fMRI) measures signal changes in the brain that are due to changing neural activity. The ...

Photon

... be created and destroyed. Photons are commonly associated with visible light , which is actually only a very limited part of the electromagnetic spectrum . Photons have zero invariant mass but a definite finite energy. Because they have energy, the theory of general relativity states that they ...

Photosynthesis

... In plants, there are two photosystems involved, which are most active at 700 and 680 nm . However, other wavelengths are also peaks in the action spectrum for photosynthesis. Photosynthesis begins when light ionizes a chlorophyll molecule, releasing two electrons , which are transferred along an ...

Pigment

... There are both natural and synthetic pigments, both organic and inorganic ones. Pigments work by selectively absorbing some parts of the visible spectrum (see light ) whilst reflecting others. A distinction is usually made between a pigment, which is insoluble, and a dye , which is either a liquid, ...
Other Contents
(Date:8/28/2014)... support of peer groups and clinicians is critical ... to recent University of Georgia research. , A ... County area determined that role models for successful ... of infants. , "Mothers who received that support ... said study co-author Alex Anderson, an associate professor ...
(Date:8/28/2014)... MD FASEB MARC (Maximizing Access to Research ... for the American College of Sports Medicine,s Conference ... 2014 in Miami, Florida. These awards are ... doctorates and scientists from underrepresented groups into the ... encourage the participation of young scientists at the ...
(Date:8/28/2014)... million kilometres of new roads will be built worldwide ... Earth,s last wildernesses, where they bring an influx of ... an ambitious study has created a ,global roadmap, for ... balance the competing demands of development and environmental protection. ... that estimates that natural importance of ecosystems and a ...
Breaking Biology News(10 mins):Breastfeeding study shows need for effective peer counseling programs 2Study shows where on the planet new roads should and should not go 2Study shows where on the planet new roads should and should not go 3
(Date:8/29/2014)... new report released yesterday by the Mental Health ... mental health training and education that police personnel ... prominent issue for Canada,s police community, and today,s ... law enforcement and people with mental illnesses," says ... with an interest in the area of police ...
(Date:8/29/2014)... Today, Gen. Arthur T. Dean, Chairman ... (CADCA) , the nation’s leading substance abuse prevention organization, ... intent to nominate Michael Botticelli as the Director of ... Obama’s decision to nominate Michael Botticelli as our nation’s ... hold this important position at this time in our ...
(Date:8/29/2014)... 2014 Thirteen Novant Health ... Great 100 Nurses in North Carolina list by ... and provides scholarships to nursing students at all levels ... Novant Health Presbyterian Medical Center are: Rea Buie, ... King, Lissa Ready, Amber Segerlin, Carmen Smith, Melissa Stafford ...
(Date:8/29/2014)... 29, 2014 Edvance360, a leading provider ... for online teaching, as well as 2011 winner and ... Learning Management System, announced that Brooke Education Services, Northwest ... Group, Interactive Advertising Bureau of Canada (IAB Canada), StarSVCS, ... “We are delighted to welcome each new client to ...
(Date:8/29/2014)... 2014 (HealthDay News) -- Selling cigarettes in plain packages ... and doesn,t harm sales in small stores, according to ... by the tobacco industry when it tried to prevent ... to introduce plain packaging for tobacco products in 2012. ... and the U.K. Researchers surveyed nearly 2,000 adult ...
Breaking Medicine News(10 mins):Health News:Report advocates improved police training 2Health News:CADCA Statement on Nomination of Michael Botticelli as U.S. Drug Czar 2Health News:Great 100 Honors 13 Novant Health Nurses 2Health News:Edvance360 Continues to Experience Growth in Corporate, K-12, Health, and Non-Profit Sectors 2Health News:Study Counters Critics of Plainer Cigarette Packaging 2
Other TagsOther Tags