Long

Long-Term Potentiation (LTP)
Demonstrating LTP
LTP involves structural changes as well as functional ones.
Summary
Long-Term Depression (LTD) ...
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Discovery of long-term potentiation
LTP was first discovered in the rabbit hippocampus. In humans, the hippocampus is located in the medial temporal lobe. This image of the underside of the human brain shows the hippocampus highlighted in red.
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Long-term potentiation
In neuroscience, long-term potentiation (LTP) is the strengthening (or potentiation) of the connection between two nerve cells which lasts for an extended period of time (minutes to hours in vitro and hours to days and months ...
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Long-Term Efficacy, Adverse Consequences Not Yet Known
An overview of challenges facing gene therapy is presented in a special feature of the September 10, 1996, issue of Human Gene Therapy (7, 1781-90).
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Long term or frequently recurring. A chronic disease is either always present or comes back again and again.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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Long chains of carbon atoms are common. The chains may be branched or form rings.
Hydrophilic and Hydrophobic ...
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Long, flexible protrusions located about the mouth of many invertebrates; usually prehensile or tactile.
terminator ...
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long-day plants Plants that þower in the summer when nights are short and days are long; e.g., spinach and wheat.
loop of Henle A U-shaped loop between the proximal and distal tubules in the kidney.
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Long-Term Potentiation
In LTP, neurons continue to fire at an elevated rate, even though the stimulus has returned to normal.
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LTP Mechanisms ...
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long-day plant A plant that flowers when the length of day exceeds some critical value.
longevity The length or duration of life; compare to survivorship.
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Long(q) and short(p) arms: The regions either side of the centromere, a compact part of a chromosome, are known as arms. As the centromere is not in the centre of the chromosome, one arm is longer than the other.
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A long chain of amino acids joined by peptide bonds. Cf. peptide.
Related Terms: Amino acid ...
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One Long Argument: Charles Darwin and the Genesis of Modern Evolutionary Thought, Ernst Mayr, Harvard University Press, Cambridge Massachusetts 1991. ISBN 0-674-63905-7. QH371.M336 1991. 575 - dc20.
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Life-long or adult education has become widespread. Lending libraries provide inexpensive informal access to books and other self-instructional materials. Many adults have given up the notion that only children belong "in school".
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rather long tube of the plant xylem, composed of several hollow, elongated plant cells fused end to end
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby
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axon - long nerve cell processes that is capable of rapidly conducting nerve impulses over long distances so as to deliver signals to other cells ...
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Flagella
Long, flexible, helical protein structures that extend from the surface of the cell. Rotation of flagella in one direction results in motility, and rotation of flagella in the opposite direction results in tumbling.
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axon: the long extension of a neuron.
B
bacilli: the rod-shaped bacteria (singular, bacillus).
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A long slender stem running along the surface of the ground, arising from the axil of a leaf, whose function is to enable rapid vegetative propagation in an area. Runners are found, for example, in strawberries and creeping buttercup.
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Definition: Long, stringy aggregate of genes that carry heredity information and are formed from condensed chromatin.
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collagen -- long proteins whose structure is wound into a triple helix. The resulting fibers have a high tensile strength. Collagen is a primary component of mammalian hair.
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Hibernation a long-term (seasonal) decrease in body functions
(hibern = winter) ...
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Evolution. The long-term process through which a population of organisms accumulats genetic changes that enable its members to successfully adapt to environmental conditions and to better exploit food resources.
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: Fusion of the long arms of two acrocentric chromosomes [13
,14,15,21,22
] into a single chromosome having lost the short arms at the same time. Most often occurs as 21/21,
13/14
, and 14/21 translocations. Apart from being an important cause of ...
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Structure fatty acid A long-chain aliphatic carboxylic acid found in fats, oils, membrane phospholipids and glycolipids.
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Parasite: A plant without chlorophyll that obtains its nutrients by tapping into the branches, stems or roots of living green plants Perennial: a plant that lives more than two years Phreatophyte: A desert shrub with a long trap root that enables ...
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Based on radioligand binding studies, it has long been assumed that the neurochemical pathology of Alzheimer's disease (AD) does not involve widespread changes in post-synaptic neurotransmitter function.
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The thick filament is 130 nm long and 12 to 15 nm in diameter.
It consists mainly of a bundle of myosin molecule.
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Yet the gene is 7 kbp long, more than 10% of the mit DNA.
Genetic analysis (including complementation) revealed 10 clusters of mutation sites (called boxes).
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A pest management strategy that focuses on long-term prevention or suppression of pest problems through a combination of techniques such as encouraging biological control, use of resistant varieties, ...
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These may be short repeats just a few nt long, like CACACA etc. They can also range up to a few hundred nt long. Examples of the latter include Alu repeats, LINEs, SINEs. The function of these elements is often unknown.
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Oligonucleotide A short nucleic acid molecule; normally refers to molecules between 5 and 200 nucleotide residues(bases) long.
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Highly pleiomorphic organelle of eukaryotic cells that varies from short rod-like structures present in high number to long branched structures. Contains DNA and mitoribosomes.
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DNA (deoxyribonucleic acid): The long, spiralling m olecule that rchestrates the cell's daily operations and provides the genetic blueprint for the physical characteristics of all living organisms.
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A microscopy technique that uses simultaneous absorption of two or more photons of a long wavelength to excite fluorophores that are normally excited by a single photon of shorter wavelength.
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Within their characteristic long terminal repeats (LTRs), some retrotransposons encode retroviral-like proteins (e.g., gag, pol) for reverse transcriptase and integrase.
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The structural arrangement of DNA, which looks something like an immensely long ladder twisted into a helix, or coil.
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Teleplanic larva. Larva capable of dispersal over long distances, such as across oceans
Temperate. Pertaining to the latitudinal belt between 23º 27' and 66º 33' north or south latitude ...
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"You may do anything in the classroom as long as it doesn't interfere with anyone's learning-including you own!"
CLASS REQUIREMENTS ...
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