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| | Horseshoe crab - Wikipedia, the free encyclopedia |
 | | Limulus has been extensively used in research into the physiology of vision. | | | More recently, behavioral experiments have investigated the functions of visual perception in Limulus. | | | Habituation and classical conditioning to light stimuli have been demonstrated, as has the use of brightness and shape information by male Limuli when recognizing potential mates. |
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http://en.wikipedia.org/wiki/Limulus_Polyphemus
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| | RAP - Online Information article about RAP |
| | But although in such lower Crustacea the nerve-ganglia of the third prosthomere have not fused with the anterior nerve-mass, there is no question as to the prae-oral position of two appendage-bearing somites in addition to the ocular prosthomere. | | | The first pair of foliaceous appendages in each animal is the genital operculum; beneath it are found the openings of the genital ducts. | | | The agreement of the grouping of the somites, of the form of the parapodia (appendages, limbs) in each region, of the position of the genital aperture and operculum, of the position and character of the eyes, and of the powerful post-anal spines not seen in other Arthropods, is very convincing as to the affinity |
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http://encyclopedia.jrank.org/PYR_RAY/RAP.html
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| | Limulus: the living xiphosuran |
| | The tail spine is used by Limulus as a self-righting mechanism if the animal is overturned accidently. | | | The movable spines which stick out from the sides of the main body are used as sensory structures to let the animal know water current strength and direction. | | | At the end of the body is a strong, articulated tail spine. |
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http://lyall.tripod.com/xipho/id1.html
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| | Untitled Document |
| | That Limulus are nocturnal is bolstered by a wealth of physiological data (Barlow, 2001). | | | While this aspect of their physiology is clearly organized temporally according to the time of day, field locomotor behavior appears to be strongly dependant on tidal rhythms. | | | While Limulus exhibit clear behavioral tidal rhythms during the summer it is unclear if these rhythms 1) persist in DD; 2) can occur in the lab or 3) can occur at other times of year. |
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http://oz.plymouth.edu/~chrisc/CrustaceanResTCRLimulus.htm
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| | Endotoxin and Limulus Tests |
| | This is thought to be due to the ß-D-glucan or substance(s), having a similar structure like glucan, which is derived from the therapeutic procedure or substances. | | | 4), however, the results by a conventional limulus test suggest that the endotoxemia is associated with the wide range of SIRS. | | | 4) Morita T, Tanaka S, et al, A new (1, 3)-ß-D-glucan-mediated coagulation pathway found in Limulus amebocytes. |
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http://www1.neweb.ne.jp/wa/kaind/endotoxinT.html
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| | Vision in Limulus |
| | Westerman, L.A., Barlow, R.B., Ultraviolet responses of the Limulus mediann ocellus, Biological Bulletin, 1981 161 352-353 | | | Barlow, R.B, Ireland, L.C., Cass, L., Viision in Limulus mating behavior, Biological Bulletin General Scientific Meetings. | | | Barlow, R.B., Ireland, C.I., Kass, L., Vision in Limulus mating behavior, Biological Bulletin, 1981 161 339-340 |
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http://www.mbl.edu/animals/Limulus/vision/hartline.html
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| | Living on Limulus - Underwater Naturalist: Vol. 24, Number 2: September 1998 |
| | The Limulus leech is not a true "blood-sucking" parasite in its behavior or classification, although you'd think so, judging from the name - bdelloura - that taxonomists borrowed from the Greeks. | | | Most of the other hitchhikers may settle out of their plankton stage randomly, and with luck, end up living on Limulus. | | | Understandably, those who were first to note Limulus polyphemus probably had little interest in taxonomy, but were more concerned with the practical value of their discoveries. |
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http://www.brookdale.cc.nj.us/staff/sandyhook/dgrant/field/limulus.htm
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| | The Whitney Laboratory for Marine Biology |
| | Although the functions of myoIII are not understood, we speculate that the modification of Limulus myoIII we see contributes to light-driven and clock-driven changes in the photoreceptor’s sensitivity to light. | | | These changes in sensitivity are critical for normal vision, allowing animals to see in both bright and dim light. | | | MyoIII is related to the major protein in muscles responsible for muscle movement, and it may contribute to the structure of the photoreceptor. |
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http://www.whitney.ufl.edu/research_programs/battelle.htm
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| | Limulu_polyph |
| | The extent of human harvest of Limulus polyphemus in Florida and in the IRL has not been stringently documented; however, observations indicate that overharvesting is a potential problem in the IRL. | | | Both embryos and the posthatch larval stages develop and molt in the shortest times when exposed to salinities in the range of about 20-30 ppt. | | | The movement of mature Limulus to spawning areas is most likely triggered by a sensory system which detects seasonal changes in light patterns (Shuster 1982). |
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http://www.sms.si.edu/IRLSpec/Limulu_polyph.htm
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| | Like Cures Like homeopathy |
| | By exploring Limulus' history and its astonishing conventional medical uses, many possibilities come to mind for the application of this remedy. | | | Hemocyanin is the copper-containing molecule in the blood, and is the same molecule found in most arthropods and molluscs, allowing them to receive oxygen. | | | Eighty-one rubrics exist in the Complete Repertory; only a little more information can be found in the proving notes. |
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http://www.likecureslike.org/limuluscyclops.htm
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| | Limules |
| | The telson : this "spine" allow the limulus to turn upside down to swim with it's gills. | | | Limulus body is terminated by a long "spine" called telson. | | | Finaly the food is masticate betwen appendage pairs by a part of the appendage quite similar to the coxa of trilobites (and which has the same function). |
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http://denis.audo.free.fr/VE/limules.html
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| | Limulus |
| | Oogenesis in Limulus polyphemus,: With especial reference to the behavior of the nucleolus, | | | Further studies on the brain of limulus polyphemus, with notes on its embryology (National Academy of Sciences) | | | Clinical Applications of the Limulus Amoebocyte Lysate Test |
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http://dictionaries.cc/Limulus
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| | Horseshoe Crab |
| | To breathe, the Limulus has "gill books." Turn one over and take a look at these structures which do much the same things as your lungs. | | | Limulus has one pair of feeding legs, four pairs of walking-feeding legs, and one longer pair of walking legs that shove the body forward. | | | However, it has fed this way for thousands of years and we still have clams. |
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http://seagrant.gso.uri.edu/factsheets/crab.html
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| | Palaeos Invertebrates: Arthropoda: Xiphosusura: Xiphosura |
| | The abdominal segments are usually fully fused, although the marginal spines are movable. | | | The compound eyes are small (and absent in some early forms), and there are six pairs of legs (in the living Limulus) but no antennae. | | | These creatures live in a shallow marine environment (although some Paleozoic forms may have been brackish water inhabitants). |
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http://www.palaeos.com/Invertebrates/Arthropods/Xiphosura/Xiphosura.htm
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| | AREAC |
| | Horseshoe crabs have been studied extensively in medical sciences for their applications in cancer research and retinal studies. | | | An enzyme isolated from the crab's blood called limulus amoebocyte lysate (LAL) is used to detect bacterial contamination in pharmaceutical products and by NASA as well as to diagnose bacterial diseases such as spinal meningitis. | | | The depletion of their populations has led to laws that protect the animal in many states along our northeast coast. |
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http://depthome.brooklyn.cuny.edu/areac/hscrab.html
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| | Publications: LISMAN - NEUROSCIENCE |
| | Light-induced changes of sensitivity in Limulus ventral photoreceptors. | | | Single Photon Transduction in Limulus Photoreceptors and the Borsellino-Fuortes model. | | | Richard, E.A. and Lisman, J.E. Rhodopsin deactivation is a modulated process in Limulus photoreceptors. |
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http://www.bio.brandeis.edu/lismanlab/pubs.html
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| | Del Sol Review |
| | After a night of spicy food, Charlie dreams he is a platform diver, his body fit and firm, his skin the color of a copper penny. | | | Limulus rousts food out of the sand, secures the morsel with its graspers, and grinds it up into bite-sized pieces that he sucks up into his orifice like a vacuum cleaner. | | | Despite his monstrous appearance, Limulus is quite harmless. |
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http://webdelsol.com/Del_Sol_Review/dsr12/jim.htm
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| | The Biological Bulletin: Antimicrobial activity of Limulus blood: role of C-reactive protein (CRP) and Limulus ... |
| | The immune defense against invading pathogens is mediated largely by effectors in the blood. | | | The Biological Bulletin: Antimicrobial activity of Limulus blood: role of C-reactive protein (CRP) and Limulus anti-lipopolysaccharide factor (LALF).@ HighBeam Research | | | The results revealed that CRP and LALF have bacteriostatic and bacteriolytic functions, respectively, in Limulus cells. |
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http://www.highbeam.com/library/doc0.asp?DOCID=1G1:18965753&refid=ip_encyclopedia_hf
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| | Limulus Laboratory Exercise |
| | The posterior edges of some of the book gills can be seen extending beyond the posterior edge of the operculum. | | | External anatomy can be studied using a living, dried, or preserved Limulus. | | | Owen R. On the anatomy of the American king-crab ( Limulus polyphemus, Latr.). |
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http://www.lander.edu/rsfox/310limulusLab.html
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| | Characterization of the Actin Cross-linking Properties of the Scruin-Calmodulin Complex from the Acrosomal Process of ... |
| | Contrary to these examples, extension of the acrosomal process in Limulus sperm may be a movement of an actin spring in which potential energy, stored as a coiled bundle at the base of sperm body, is unleashed at fertilization to uncoil and extrude the bundle through a channel in the nucleus( 2, 3). | | | In later experiments, Limulus sperm calmodulin was purified from sperm with a phenyl-Sepharose column on the FPLC using standard methods( 14). | | | During activation of the Limulus sperm acrosomal process, actin filaments undergo a change in twist that is linked with the conversion from a coiled to a straight scruin-actin bundle. |
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http://www.jbc.org/cgi/content/full/271/5/2651
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| | CUNY GC Science and the Arts: Limulus Polyphemus Exhibition & Discussion |
| | The Science and the Arts series is presented by the Science Center and is part of the Continuing Education and Public Programs at The Graduate Center. | | | Strongly influenced by the pre-Hispanic cultures of Mexico, where he has lived and worked extensively, he has lived and worked in New York since 1979. | | | The exhibition will consist of three overlapping areas: art, science and society. |
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http://web.gc.cuny.edu/ashp/nml/artsci/crab.html
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| | Gleumes, Heinz-Willi:¬Der Limulus-Test zur Hygienekontrolle von "frischer Mettwurst" |
| | Further studies should confirm the feasibility of the testunder conditions of practice of in plant control and official food control. | | | The Limulus test for monitoring the hygienic condition of German fresh "Mettwurst" | | | If the"Mettwurst" is produced under conditions of Good Manufacturing Practice the product should notcontain more than log 4,0 EU/g, higher values indicate an inacceptable level of contamination.The Limulus test could be used as a simple inexpensive and apid screening method to monitor thehygiene of the process of production. |
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http://library.vetmed.fu-berlin.de/diss-abstracts/92829.html
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| | MSN Encarta - Search Results - limulus |
| | Since 1964 a substance in their blood called limulus... | | | Horseshoe crabs have long been used as bait and have also been ground up for fertilizer. | | | Search Amazon.com for books about your topic, "limulus" |
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http://encarta.msn.com/limulus.html
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| | [No title] |
| | [The question concerning the origin of the lungs of the Arachnoidea from the gills of the Merostomata (Limulus theory).] | | | , E. Evidence in favour of the view that the coxal glands of Limulus and of other Arachnids is a modified Nephridium. | | | Translated title: The gills of Limulus and the lungs of the arachnids. |
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http://www.solpugid.com/solpugids/solyear.html
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| | [No title] |
| | This rather bizarre animal is called a living fossil as it is the oldest living animal known to us that has not changed its form in millions of years, and has long fascinated him. | | | Nissen’s most recent works are a series of bronzes and collages Limulus, based on forms of the Horse Shoe Crab. | | | Its simple exterior helmet shape encloses the baroque symmetry of the inside, and he was attracted to developing these contained forms with the idea of inside/outside as a sculptural space; the one invoking the other. |
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http://www.briannissen.com/limulus.html
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| | HexaFind.com - Business : Biotechnology and Pharmaceuticals |
| | Charles River Endotoxin Testing Services Manufactures Limulus Amebocyte Lysate (LAL), an in-vitro test used in the pharmaceutical, parenteral, medical devices, and veterinary medicine industries for the detection of bacterial endotoxins. |
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http://www.hexafind.com/directory/Business/Biotechnology_and_Pharmaceuticals
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| | Penn State Faculty Research Expertise Database (FRED) |
| | Sensitive method for detection of bacterial endotoxins and endotoxin-like substances that depends on the in vitro gelation of Limulus amebocyte lysate (LAL), prepared from the circulating blood (amebocytes) of the horseshoe crab, by the endotoxin or related compound. | | | U.S. National Library of Medicine is the creator, maintainer, and provider of all MeSH 2004 data | | | Used for detection of endotoxin in body fluids and parenteral pharmaceuticals. |
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http://fred.hmc.psu.edu/ds/retrieve/fred/meshdescriptor/D008033
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| | Specialists in Endotoxin and Glucan Detection and Glycobiology Reagents Associates of Cape Cod, Inc. |
| | ACC was the first manufacturer licensed by the FDA to manufacture LAL for use as a quality control test for endotoxin in the pharmaceutical and medical device markets. | | | For over 30 years, Associates of Cape Cod, Inc. (ACC) has been a leading global supplier of analyte detection products, including Limulus Amebocyte Lysate (LAL) for the detection and quantification of bacterial endotoxins. |
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http://www.acciusa.com
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| | Hatching controlled by the circatidal clock, and the roleof the medulla terminalis in the optic peduncle of the ... |
| | In Limulus polyphemus, the circadian pacemaker has also been suggested | | | crab Limulus polyphemus, many physiological events are modulated | | | Arikawa, K., Kawamata, K., Suzuki, T. and Eguchi, E. Daily changes of structure, function and rhodopsin content in the compound eye of the crab Hemigrapsus sanguineus. |
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http://jeb.biologists.org/cgi/content/full/205/22/3487
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| | Learn more about Fossil in the online encyclopedia. |
| | This may sometimes be a species known only from fossils until living representatives were discovered (the most famous example of this is the coelacanth fish ( Latimeria chalumnae)). | | | Additional information see Fossils and the geological timescale | | | Other "living fossils" are the nut clams ( Ennucula superba), Lingula anatina, an inarticulate brachiopod, and the horseshoe crab ( Limulus polyphemus). |
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http://www.onlineencyclopedia.org/f/fo/fossil.html
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| | Limulus polyphemus |
| | Each ToL branch page provides a synopsis of the characteristics of a group of organisms representing a branch of the Tree of Life. | | | Shultz, J. Gross muscular anatomy of Limulus polyphemus (Xiphosura, Chelicerata) and its bearing on evolution in the Arachnida. | | | Please visit the official version of this page, which is available here. |
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http://tolweb.org/tree?group=Limulus_polyphemus
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| | Department of Food Science - MICROBIAL FOOD SAFETY GROUP |
| | Validation of acid washes as critical control points in hazard analysis and critical control point systems. | | | Monitoring the microbial contamination of beef carcass tissue with a rapid chromogenic limulus amoebocyte lysate endpoint assay. |
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http://www.foodscience.psu.edu/Research/fdsafety.html
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| | Limulus Lysate Test - Medical Illustration - Graphic Pulse |
| | Limulus Lysate Test - Medical Illustration - Graphic Pulse | | | Title: The Limulus Lysate Test - A way of using the sensitive coagulation properties of blood cells from a horshoe crab (Limulus polyphemus) to detect endotoxins and impurities on instrumentation used by pharmaceutical companies. | | | Shark Shark Mag Cat Cat Mag Limulus Horseshoe Crab Feline Dog mouth CAB CAB Mag Kidney Kidney Mag Reduction Knee Nerves Anatomy Head HeadMag Nasal Axilla RBC Pancreas Embryo Embryo Mag Sleep Circadian Sleeping Caracature Restful Cell |
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http://www.graphicpulse.com/medill/wcrab.html
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