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Topic: Satellite (biology)

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	Biology News: Satellite tots up volcanic heat
		In 2001, the amount of heat energy produced by volcanoes was 1000 times less than the energy consumed by the United States, the researchers report in the current issue of Geology1.
		Robert Wright and Luke Flynn from the University of Hawaii in Honolulu used the NASA satellite MODIS (Moderate Resolution Imaging Spectroradiometer) to measure the heat emitted by the world's 45 most active volcanoes, which are responsible for the majority of the Earth's volcanic heat.
		Satellites are more accurate, and are potentially useful for volcanic forecasting too, says McGuire.
	www.bioedonline.org /news/news.cfm?art=822 (495 words)

	Satellite telemetry of migrant turtles breeding in the Hawaiian Islands
		Satellite telemetry using the Argos system was conducted during 1995 for the first time on adult male green turtles, Chelonia mydas (honu), breeding in the Hawaiian Islands at French Frigate Shoals (24 N, 166 W).
		Detailed satellite tracking was successfully accomplished for the post-reproductive open ocean migrations of the two males and one female, as shown in Figure 1.
		Procedures to attach a satellite transmitter to the carapace of an adult green turtle, Chelonia mydas.
	www.turtles.org /ffs/migrate/ffsmigrt.htm (1190 words)

	Biology (Site not responding. Last check: 2007-10-21)
		Satellites and Marine Biology Small-scale Eddies and Phytoplankton
		Satellite imagery does not have the resolution to show most marine lifeforms in the Bight, but it can be used to show where major occurences (blooms) of phytoplankton develop at the surface.
		This is due to the fact that the color in most of the world's oceans in the visible light region, (wavelengths of 400-700 nm) varies with the concentration of chlorophyll and other plant pigments present in the water, i.e., the more phytoplankton present, the greater the concentration of plant pigments and the greener the water.
	seis.natsci.csulb.edu /bperry/scbweb/BIOLOGY.HTM (1117 words)

	Encyclopedia article on Satellite [EncycloZine] (Site not responding. Last check: 2007-10-21)
		The general criterion for an object to be a satellite is that the center of mass of the two objects is inside the other object.
		Navigation satellite s are satellites which use radio time signals transmitted to enable mobile receivers on the ground to determine their exact location.
		Weather satellite s are satellites that primarily are used to monitor the weather and/or climate of the Earth.
	encyclozine.com /Satellite (938 words)

	Do Satellite Tage Jam a Shark's Electroreceptors?
		Continuous satellite tags send data about a tagged animal's position, direction and rate of travel, and sometimes other environmental data such as water temperature encoded in the form of pulsed radio waves; the data are sent to a geosynchronous satellite and beamed to a pre-determined, usually land-based, receiver.
		Because they transmit continuously, or at least continually, Continuous satellite tags require substantial power cells and their energy output (and resultant electrical field) is relatively strong.
		The question, "To what extent do satellite tags affect the behavior of the animal being tracked?" is a very important one and not easy to answer with any confidence.
	www.elasmo-research.org /education/topics/b_satellitetags.htm (891 words)

	The satellite cell as a companion in skeletal muscle plasticity: currency, conveyance, clue, connector and colander -- ...
		Two satellite cells are adherent to the fibre; two additional cells (not identifiable with this staining technique) lie on the surface of the culture dish and have also incorporated BrdU during culture.
		Cultures are plated satellite cells isolated from skeletal muscle, and may contain `contaminating' cells of the fibroblast, adipocyte and endothelial lineages that are only partly distinguishable from myogenic cells in unstained cultures using structural and behavioural phenotypes.
		Note that this technique does not identify the possible heterogeneity between satellite cells regarding the number of cell cycles that have passed, and that the `parent' satellite cell may not lie in the same segment as the central myonucleus that was generated by the previous cell cycle.
	jeb.biologists.org /cgi/content/full/209/12/2276 (7888 words)

	Biology Courses
		Principles and concepts of animal biology based on comparison of structures and functions of the principal invertebrate and vertebrate types.
		Prerequisites: (1) sequence of biology fundamental courses (BI 205/L, LL 185, BI 206/L, and either 207/L or 214/L and 215/L); (2) 1-2 semesters CH; and (3) 3 credits of MA/MC as required.
		Prerequisites: biology fundamental sequence; CH 106; MA 120.
	www.ursuline.edu /acadaff/catalog/biology.htm (1635 words)

	Myogenic satellite cells: physiology to molecular biology -- Hawke and Garry 91 (2): 534 -- Journal of Applied ...
		In the uninjured muscle fiber, the satellite cell is quiescent and rests in an indentation in the adult muscle fiber.
		Satellite cell number is dependent on the species, age, and muscle fiber type (Table 2; see Ref. 167 for review).
		Satellite cells will migrate to the damaged region and, depending on the severity of the injury, fuse to the existing myofiber or align and fuse to produce a new myofiber.
	jap.physiology.org /cgi/content/full/91/2/534 (6465 words)

	Cellular and Molecular Regulation of Muscle Regeneration -- CHARGÉ and RUDNICKI 84 (1): 209 -- Physiological ...
		The embryonic origin of satellite cells remains to be determined; however, Pax7 expression is essential for the specification/expansion of the satellite cell population.
		Muscle satellite cells are present on myofibers isolated by mild enzymatic digestion (D) and are characterized by their high levels of Pax7 expression as demonstrated by immunocytochemistry (white arrow) compared with myonuclei (fl arrow).
		Following damage to the myofiber (A), quiescent satellite cells are activated to enter the cell cycle and proliferate, allowing for expansion of the myogenic cell population (B).
	physrev.physiology.org /cgi/content/full/84/1/209 (8826 words)

	Genome Biology \| Full text \| The role of DNA sequence in centromere formation
		Arabidopsis centromeres include a 178 bp satellite repeat, which is organized in tandem arrays that range in size from 0.4 Mb to 1.4 Mb on different chromosomes and are located between regions enriched for various satellites and other repetitive elements [6,11].
		Centromeric satellites from mammals and plants are approximately the length required to wrap around a nucleosome, and even in Drosophila multiples of the 5 bp satellites could add up to a unit of nucleosomal length.
		The analysis of Arabidopsis and human centromeric satellites identified regions that were conserved among the various iterations, as well as regions that were more variable than average, implying that selection pressures act on the sequence of centromeric elements [7].
	genomebiology.com /2003/4/5/214 (2799 words)

	Do Satellite Tage Jam a Shark's Electroreceptors?
		Continuous satellite tags send data about a tagged animal's position, direction and rate of travel, and sometimes other environmental data such as water temperature encoded in the form of pulsed radio waves; the data are sent to a geosynchronous satellite and beamed to a pre-determined, usually land-based, receiver.
		Because they transmit continuously, or at least continually, Continuous satellite tags require substantial power cells and their energy output (and resultant electrical field) is relatively strong.
		The question, "To what extent do satellite tags affect the behavior of the animal being tracked?" is a very important one and not easy to answer with any confidence.
	elasmo-research.org /education/topics/b_satellitetags.htm (887 words)

	RECOMB Satellite Systems Biology 2006
		Held in conjunction with Algorithmic Biology 2006, Nov 30, 2006
		Clearly, the emerging disciplines of Systems Biology and Proteomics are intertwined, and the amount of research in both of these areas has exploded in recent years.
		The jointly held RECOMB Satellite Conferences on Systems Biology and Computational Proteomics provide a forum for new methods that broadly address either or both of these areas.
	chianti.ucsd.edu /recombsysbio06 (145 words)

	Biology News: Satellite set to survey Earth's poles
		The first satellite to accurately measure how fast the Earth's polar ice caps are shrinking will launch on 8 October.
		On 28 September, scientists using NASA's NIMBUS-7 satellite reported that Arctic sea ice was at its lowest extent since satellite monitoring began in 1978.
		Previous ice-monitoring satellites ERS-1 and ERS-2 have made more than ten years of measurements, but their radar equipment works best on the central, flat parts of these continents.
	www.bioedonline.org /news/news.cfm?art=2064 (697 words)

	Developmental Biology Web Page
		Post natal growth of muscle is thought to be carried out by specialized quiescent stem cells present in muscle tissue called muscle satellite cells, and activation of these is thought to be under the influence of many different factors, including the myogenic determination factors MyoD and Myf5, certain immune cells, and many different growth factors.
		Recent research has identified and purified pluripotent stem cells (muscle stem cells) present in muscle tissue that are distinct from satellite cells and are thought to play a role in muscle regeneration.
		This research article gave a lot of insight into the Wnt pathway and the related molecules and growth factors that activate and repress it, such as B-catenin (which was a subject of one of the experiments not discussed in the primary research paper).
	www.unr.nevada.edu /~jsutherl/Bio480.htm (2112 words)

	Satellite (biology) - Wikipedia, the free encyclopedia
		Satellites are subviral agents composed of nucleic acids ; they depend for their multiplication on coinfection of a host cell with a helper virus.
		When a satellite encodes the coat protein in which its nucleic acid is encapsidated it is referred to as a satellite virus.
		This page was last modified 10:30, 3 June 2005.
	en.wikipedia.org /wiki/Satellite_(biology) (72 words)

	david goldhamer (Site not responding. Last check: 2007-10-21)
		Skeletal muscleês enormous regenerative capacity is mediated by muscle satellite cells, normally quiescent stem cells that are —activated” in response to injury or disease.
		Despite their essential function, key aspects of satellite cell biology remain unresolved, including their developmental origin, potential and regulation of commitment to myogenesis.
		Characterization of this stem cell population and its relationship to muscle satellite cells is also being pursued.
	web.uconn.edu /crb/david.htm (624 words)

	Bio Majors: Undergraduate Majors
		The Biological Sciences Core is an 11-quarter series of courses ranging from diversity, ecology, genetics, biochemistry and molecular biology, to cell biology, physiology, and neurobiology.
		Satellite courses provide an opportunity to continue to diversify students' exposure to the biological sciences or to gain a much more in-depth study of a particular area of the biological sciences.
		These courses along with satellite courses in the area of molecular biology and biochemistry will provide majors a choice to either explore the breadth of the field or to follow a more in-depth study of any of its sub-disciplines.
	www.bio.uci.edu /students/Current/content_majors.html (1765 words)

	Satellite DNA - Wikipedia, the free encyclopedia
		Satellite DNA consists of highly repetative DNA, and is so-called because repetitive DNA sequences tend to be have a relatively high frequency of the nucleotides Adenine and Thymine, and thus have lower density - such that they form a second 'satellite' band when genomic DNA is separated along a density gradient.
		The repeated pattern can be between 1 basepair long (a mononucleotide repeat) several thousand base pairs long, and the total size of a satellite DNA block can several be megabases without interruption.
		This page was last modified 22:46, 19 April 2005.
	en.wikipedia.org /wiki/Satellite_DNA (109 words)

	A Role for Nitric Oxide in Muscle Repair: Nitric Oxide-mediated Activation of Muscle Satellite Cells -- Anderson 11 ...
		Because satellite cells are intimately contoured to fibers and often stay attached to the external lamina as the sarcolemma
		satellite cells are adjacent to an unstained fiber.
		Klein-Ogus, C., and Harris, J.B. Preliminary observations of satellite cells in undamaged fibers of the rat soleus muscle assaulted by a snake-venom toxin.
	www.molbiolcell.org /cgi/content/full/11/5/1859 (9278 words)

	satellite viruses - definition from Biology-Online.org
		Defective viruses which can multiply only by association with a helper virus which complements the defective gene.
		Satellite viruses may be associated with certain plant viruses, animal viruses, or bacteriophages.
		They differ from satellite RNA ( RNA, satellite) in that satellite viruses encode their own coat protein.
	www.biology-online.org /dictionary/satellite_viruses (47 words)

	DNA Hypomethylation and Ovarian Cancer Biology -- Widschwendter et al. 64 (13): 4472 -- Cancer Research
		in satellite DNA and in the gene regions.
		that hypomethylation of satellite DNA at 1qh and in the adjacent
		Jeanpierre M, Turleau C, Aurias A, et al An embryonic-like methylation pattern of classical satellite DNA is observed in ICF syndrome.
	cancerres.aacrjournals.org /cgi/content/full/64/13/4472 (5208 words)

	USATODAY.com - GeneSat-1: Small satellite tackles big biology questions (Site not responding. Last check: 2007-10-21)
		The concept of the GeneSat-1 was showcased at the 19th Annual Conference on Small Satellites, held here August 8-11 and sponsored by the American Institute of Aeronautics and Astronautics and Utah State University.
		But the small satellite is "temporarily on hold" pending launch availability and funding, explained John Hines, the project manager at California's NASA Ames Research Center.
		Also the tiny satellite totes secondary batteries that the solar cells charge for operation when it is being shadowed by an eclipse.
	www.usatoday.com /tech/science/space/2005-08-30-small-satellites-biology_x.htm (995 words)

	PFRP Biology Project - PSTAT tagging of Pacific blue marlin
		The issue of long term survival of released fish may be especially critical for Pacific blue marlin caught near the main Hawaiian Islands, as this area appears to be a significant spawning area (Hopper 1990).
		Assessing the biochemical and physiological disruption to the fish, and tracking the released fish will allow researchers to, 1) eliminate biochemical parameters that have no bearing on mortality, and 2) provide a subset of parameters found to be good predictors of long term survival.
		An evaluation of pop-up satellite tags for estimating postrelease survival of blue marlin ( Makaira nigricans) from a recreational fishery.
	www.soest.hawaii.edu /PFRP/biology/musyl_marlin.html (824 words)

	Plant Biology Research Profile: Dr. Marilyn J. Roossinck
		We demonstrated that genetic bottlenecks occur during systemic infection in plants and affect the population structure of viral quasispecies.
		Expression of anti-apoptotic genes bcl-xL and ced-9 in tomato enhances tolerance to infection by Cucumber mosaic virus D satellite RNA and low-temperature stress.
		Plant virus satellite and defective interfering RNAs: New paradigms for a new century.
	www.noble.org /plantbio/Roosnk/Index.htm (1087 words)

	NATO ASI & SUSSP 59: Soft Condensed Matter Physics in Molecular and Cell Biology (Site not responding. Last check: 2007-10-21)
		Biology is ‘living soft matter’ — biological surfactants (lipids) make up the membranes, while proteins and DNA are biological polymers.
		Brownian motion has a dominant role — diffusion on structures with reduced spatial dimensionality (2-dimensional on membranes and 1-dimensional on various filamentous structures such a microtubules) play a crucial role in transport and other processes, while diffusion in a very-high-dimensional free-energy landscape underlies protein folding.
		This ASI/SUSSP is an official satellite of the Isaac Newton Institute for Mathematical Sciences (Cambridge) programme: 'Statistical Physics of Biomolecules and Cells.' (19th Jan - 9 Jul 2004)
	www.ph.ed.ac.uk /SoftBioASI (387 words)

	Expression of CD34 and Myf5 Defines the Majority of Quiescent Adult Skeletal Muscle Satellite Cells -- Beauchamp et al. ...
		that satellite cells are not a homogenous population.
		Molnar, G., Ho, M.L., and Schroedl, N.A. Evidence for multiple satellite cell populations and a non-myogenic cell type that is regulated differently in regenerating and growing skeletal muscle.
		Schultz, E., Gibson, M.E., and Champion, T. Satellite cells are mitotically quiescent in mature mouse muscle: an EM and radioautographic study.
	www.jcb.org /cgi/content/full/151/6/1221 (7797 words)

	Student Satellite Almost Ready For Space
		University Of Colorado's Student-Built Satellite Begins Returning Science Data (March 11, 1998) -- Three science instruments launched Feb. 26 aboard a $5 million satellite designed and built by CU-Boulder students, faculty and engineers have been turned on and are returning data, said project...
		Student-Built Satellite Scheduled To Launch Today (May 18, 1999) -- The TERRIERS satellite, built by students at Boston University and scheduled for launch on May 18, could provide a much better understanding of how changes in the ionosphere -- the electrically...
		Despite the long working hours, he remains optimistic, "A satellite is the most complex object you can build as an engineer, a fantastic challenge." Help ESA is the main sponsor of SSETI Express, but it is the students themselves who have to make sure the satellite actually leaves the ground.
	www.sciencedaily.com /releases/2004/12/041206202334.htm (1326 words)

	satellite - OneLook Dictionary Search
		Satellite, satellite : UltraLingua English Dictionary [home, info]
		Phrases that include satellite: weather satellite, artificial satellite, satellite dish, shepherd satellite, astronomy satellite, more...
		Words similar to satellite: planet, artificial satellite, moon, more...
	www.onelook.com /?w=satellite&loc=wotd (389 words)

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