Wiktionary Striations means a series of ridges , furrows or linear marks, and are used in several ways Glacial striation Striation geology , a striation as a result of a geological Fault geology fault Striation Valley , in Antarctica In medicine, striated muscle Striations can be found in certain Glass glasses . These have been caused by turbulent flow during teeming pouring of the glass. Striations can be observed in clouds . See Barber s pole . Ballistic fingerprinting dab ... more details
Image Striation fault.jpg thumb Striations observed in Peloponnese , Greece . Image PySlick.JPG thumb left Slickenside striations on a Pyrite coated fault surface In geology, a striation means linear furrows generated from Fault geology fault movement The striation s direction reveal the movement directions in the fault plane. Similar striations can occur with glaciation . Striations can also be a growth pattern shown on certain faces of certain minerals. Minerals that can include growth striations include Pyrite , Feldspar , Quartz , Tourmaline , and Sphalerite . See also Glacial striation DEFAULTSORT Striation Geology Category Geology geology stub ... more details
Orphan date December 2010 Striation Valley coor dm 70 53 S 68 23 W is a valley trending southeast to George VI Sound , north of Jupiter Glacier , Alexander Island . Surveyed by a field party from the Department of Geography, University of Aberdeen, Scotland, with British Antarctic Survey BAS support, 1978 79. The name derives from glacial striations found on rocks in the valley. usgs gazetteer Category Valleys of Antarctica Category Landforms of Alexander Island AlexanderIsland geo stub ... more details
File Glacial striation 21149.JPG thumb right Glacial striations at Mount Rainier National Park Image Glacial grooves.jpg thumb right 250px Glacial grooves stemming from the Wisconsin glaciation at Kelleys Island, Ohio Glacial striations are scratches or gouges cut into bedrock by glacial Abrasion geology abrasion . Glacial striations are usually multiple, straight, and parallel, representing the movement of the glacier using rock fragments and sand grains, embedded in the base of the glacier, as cutting tools. Large amounts of coarse gravel and boulders carried along underneath the glacier provide the abrasive power to cut trough like glacial grooves , and finer sediments also in the base of the moving glacier further scour and polish the bedrock surface, forming a glacial pavement . Most glacial striations were exposed by the retreat of glaciers since the Last Glacial Maximum or the more recent Little Ice Age . As well as indicating the direction of flow of the glacial ice, the depth and extent of weathering of the striations may be used to estimate the duration of post glacier exposure of the rock. An outstanding example of glacial grooves can be found at the Glacial Grooves at Kelleys Island, Ohio a National Natural Landmark , the most impressive of which is convert 400 ft m long, convert 35 ft m wide, and up to convert 10 ft m deep. These grooves cut into the Columbus Limestone . Striations cover the sides and bottoms of the grooves. External links Commons inline http www.ohiohistory.org places glacial Ohio Historical Society Glaciology stub geomorph stub Category Glaciology Category Erosion cs Souvek da Skurestribe de Kritzung es Estr a glacial fr Strie glaciaire is sr kir it Striatura glaciale ka nl Gletsjerkras no Skuringsstripe pt Estrias glaciais ru sv Isr fflor uk ... more details
File Skin Tumors P9071282.jpg thumb Acral nevus File Skin Tumors P9071281.jpg thumb Melanocytic acral nevus with intraepidermal ascent cells MANIAC An Acral nevus also known as a Melanocytic nevus of acral skin , ref name Bolognia cite book author Rapini, Ronald P. Bolognia, Jean L. Jorizzo, Joseph L. title Dermatology 2 Volume Set publisher Mosby location St. Louis year 2007 pages 1726 7 isbn 1 4160 2999 0 oclc doi accessdate ref and Melanocytic nevus with intraepidermal ascent of cells ref name Bolognia MANIACS is a cutaneous condition characterized by a skin lesion that is usually macular or only slightly elevated, and may display uniform brown or dark brown color, but often with linear wikt striation striation s. ref name Bolognia cite book author Rapini, Ronald P. Bolognia, Jean L. Jorizzo, Joseph L. title Dermatology 2 Volume Set publisher Mosby location St. Louis year 2007 pages isbn 1 4160 2999 0 oclc doi accessdate ref rp 1726 See also Acral lentiginous melanoma List of cutaneous conditions References reflist Category Melanocytic nevi and neoplasms Cutaneous condition stub Skin tumors, nevi and melanomas ... more details
Taxobox name Noetiidae image Striarca lactea 001.jpg image caption Three bivalve shell shells of Striarca lactea regnum Animal ia phylum Mollusca classis Bivalvia subclassis Pteriomorpha ordo Arcoida familia Noetiidae familia authority Stewart, 1930 subdivision ranks Genera subdivision See text Noetiidae is a Family biology family of saltwater clams, marine ocean marine bivalve mollusk s in the order Arcoida . They are related to the ark clam s. They are differentiated from the ark clams by the presence of wikt striation striation s on the hinge ligament . They usually grow to around 6 cm in length, with a maximum of 10 cm. Genera and species Genera and species within the family Noetidae include Arcopsis small Koenen, 1885 small Arcopsis adamsi Small Dall, 1886 small Arcopsis fossularca Arcopsis gabinarca Arcopsis mulinarca Arcopsis ribriarca Arcopsis scapularca Arcopsis solida small Sowerby, 1833 small Arcopsis spinearca Arcopsis verilarca Noetia small Gray, 1857 small Noetia alssoni Noetia bisulcata Noetia delgada small Lowe, 1935 small Noetia lindae Noetia ponderosa small Say, 1822 small Noetia reversa Small Sowerby, 1833 small Noetiella Noetiella congoensis Rectangularca Scapularca Scelidionarca Sheldonella Sheldonella barbatiella Sheldonella didimacar Sheldonella minutalis Sheldonella paranoetia Stenocista Stenocista gambiensis Striarca Striarca afra Striarca breviarca Striarca estellacar Striarca galactella Striarca lactea Striarca pectunculiformis Trigonodesma Trinacria bivalve Trinacria Verilarca Verilarca sinensis References Wikispecies Noetiidae Category Noetiidae bivalve stub fr Noetiidae pl Noetiidae ... more details
Wiktionary Pavement may refer to Road surface , the durable surfacing of roads and walkways Sidewalk , a walkway along the side of a road, in British English or Philadelphia Baltimore dialect Pavement architecture , a floor like stone or tile structure Portuguese pavement , the traditional paving used in most pedestrian areas in Portugal Cal ada Portuguesa in Portuguese Limestone pavement , a naturally occurring landform that resembles an artificial pavement Desert pavement , a desert ground surface covered with closely packed rock fragments of pebble and cobble size Tessellated pavement , a rare sedimentary rock formation that occurs on some ocean shores Glacial striation Glacial pavement , a rock surface scoured and polished by glacial action Popular culture Pavement band , an indie rock band from Stockton, California Pavement magazine , a youth culture magazine, published in New Zealand by Bernard McDonald and Glenn Hunt Pavement Music , a record label See also lookfrom intitle Pave disambiguation PAVE , a United States military electronic system program Disambiguation ... more details
Ventifacts are rock geology rocks that have been abraded, pitted, etched, grooved, or polished by wind driven sand or ice crystals. These geomorphic features are most typically found in arid environments where there is little vegetation to interfere with aeolian processes aeolian particle transport, where there are frequently strong winds, and where there is a steady but not overwhelming supply of sand. Ventifacts can be abraded to eye catching natural sculptures. In moderately tall, isolated rock outcrops, mushroom shaped pillars of rock may form as the outcrop is eroded by Saltation geology saltating sand grains. This occurs because, even in strong winds, sand grains can t be continuously held in the air. Instead, the particles bounce along the ground, rarely reaching higher than a few feet above the earth. Over time, the bouncing sand grains can erode the lower portions of a ventifact, while leaving a larger less eroded cap. The results can be fantastic stone mushrooms. Individual stones, such as those forming desert pavement , are often found with grooved, etched, or polished surfaces where these same wind driven processes have slowly worn away the rock. When ancient ventifacts are preserved without being moved or disturbed, they may serve as a paleo wind indicators. The wind direction at the time the ventifact formed will be parallel to grooves or wikt striation striation s cut in the rock. gallery widths 200px image Mendenhall 1905 USGS.jpg Schist boulder pitted by sand blast near Palm Springs Station, Colorado Desert. Riverside County, California Mendenhall, 1905 ref U.S. Geological Survey Photographic Library http libraryphoto.cr.usgs.gov ref Image VentifactMojaveDesert031511.jpg Ventifact from the Mojave Desert near Barstow, California. image Ventifact at Ventifact Ridge in Death Valley.jpg Ventifact at Ventifact Ridge in Death Valley Mayer, 2003 Image Bradley 1930 dreikanter.jpg Granite stone polished by windblown sand, Sweetwater County, Wyoming Bradley, ... more details
This article is about an ecozone . For the landform covering the same region, see Canadian Shield . The Boreal Shield Ecozone is the largest Ecozones of Canada ecozone in Canada . Formation Canadian Shield rock forms the nucleus of the North American continent. Other geology geological structures assumed positions around or on top of the Shield millions of years after it was formed. The Rocky Mountains are relative newcomers on the geological stage, having risen a mere 60 million years ago. Most Shield rocks were formed well over a billion years earlier, during the very first chapter of the planet s history known as the Precambrian era . What once may have been a towering mountain chain is today a great rolling plain of ancient bedrock . During the late Precambrian era, fierce convulsions in the Earth s crust geology crust resulted in a warped, collapsed Shield. The foundation of much of the ecozone is now metamorphic rocks metamorphic gneiss , a highly banded rock formed by intense pressure and heat. Many of the minerals that contribute to the Shield s economy may have formed during these geologically turbulent times. During the last ice age , which ended 10 000 years ago, the advance of glacier s continuously plucked and scoured the Boreal Shield, forming Glacial striation striation s in the bedrock and carrying large boulders many kilometers. In retreat, massive glaciers enveloped most of the landscape with great amounts of glacial deposits including gravel, sand, shale, and numerous sediments. The vast majority of inadequately drained depressions that were left behind, as well as natural faults in the bedrock, now form the millions of lakes, ponds and wetlands that give this ecozone its distinctive character. Changing conditions As for the boreal forest, fire suppression, insect control, clear cutting and single species tree farming are widespread. These practices may, over the long term, reduce the diversity of both plant and animal species and increase the for ... more details
no footnotes date December 2011 Infobox Korean name hangul hanja linktext rr Manjanggul mr Manjanggul The Manjanggul Lava tube Lava Tube is located in Gimnyeong ri, Gujwaeup, Jeju City and is 23 m in breadth and 30 m in height. As the lava tube stretches for as far as an approximate 7,400 m, its length ranks amongst the top 15 in the world. It is also the largest lava tube in Jeju island . It is regarded as having significant scientific and heritage value, owing to its excellent condition of preservation despite its age of formation about 300,000 to 200,000 years ago . Lavacicles Lava stalactites and lava stalagmite s, Basalt Columnar basalt lava columns , lava flowstone , lava helictite s, lava blisters, Cave popcorn cave coral , benches, lava rafts, lava bridges, lava shelves, grooved lava wikt striation striation s, and ropy lava are well preserved. Among them, a lava column of 7.6m the largest known in the world. There are three entrances and No. 2 heading southward is open to the public. Entrance No. 3 contains the most favorable habitats for cave life and between Entrances 1 and 2, there is a lower level main tube where most of the living creatures can be found. In the Geomunoreum Lava Tube System , the Manjanggul Lava Tube has the greatest number of living creatures, including the Jeju cave spider. In the upper part of Entrance 2, there are at least 30,000 Common Bent wing Bat common bent wing bats forming the largest colony of bats confirmed to be living in Korea so far. See also List of Korea related topics List of World Heritage Sites in Asia and Australasia South Korea .2810.29 World Heritage Sites in South Korea Jeju Volcanic Island and Lava Tubes Seongsan Ilchulbong Hallasan Jeju do the Geomunoreum Lava Tube System Gimnyeonggul References cite web url http www.koreaherald.com national Detail.jsp?newsMLId 20090715000101 title World Heritage sites South Korea publisher Korea Herald date 2010 03 30 cite web url http www.koreaherald.com national D ... more details
Infobox Anatomy Name Outer nuclear layer Latin stratum nucleare externum retinae GraySubject 225 GrayPage 1016 Image Gray881.png Caption Section of retina . Outer nuclear layer labeled at right, fourth from the bottom. Image2 Gray882.png Caption2 Plan of retinal neurons. Outer nuclear layer labeled at left, third from the bottom. System Precursor MeshName MeshNumber DorlandsPre l 05 DorlandsSuf 12480791 The outer nuclear layer or layer of outer granules or external nuclear layer , is one of the layers of the vertebrate retina , the light detecting portion of the eye. Like the inner nuclear layer , the outer nuclear layer contains several strata of oval nuclear bodies they are of two kinds, viz. rod and cone granules, so named on account of their being respectively connected with the rods and cones of the next layer. Rod granules The spherical rod granules are much the more numerous, and are placed at different levels throughout the layer. Their nuclei present a peculiar cross striped appearance, and prolonged from either extremity of each cell is a fine process the outer process is continuous with a single rod of the layer of rods and cones the inner ends in the outer plexiform layer in an enlarged extremity, and is imbedded in the tuft into which the outer processes of the rod bipolar cells break up. In its course it presents numerous varicosities. Cone granules The stem like cone granules, fewer in number than the rod granules, are placed close to the membrana limitans externa, through which they are continuous with the cones of the layer of rods and cones. They do not present any cross striation, but contain a pyriform nucleus, which almost completely fills the cell. From the inner extremity of the granule a thick process passes into the outer plexiform layer, and there expands into a pyramidal enlargement or foot plate, from which are given off numerous fine fibrils, that come in contact with the outer processes of the cone bipolars. External links BUHistology 0 ... more details
Unreferenced date November 2011 Image Glacial abrasion ss 2006.jpg thumb Glacier Glacially abraded rock geology rocks in western Norway near Jostedalsbreen glacier. Abrasion is the mechanical scraping of a rock surface by friction between rocks and moving particles during their transport by wind , glacier , wave s, gravity , running water or erosion. After friction, the moving particles dislodge loose and weak debris from the side of the rock. These particles can be dissolved in the water source. The intensity of abrasion depends on the hardness , concentration , velocity and mass of the moving particles. Abrasion platform Abrasion platforms are shore platforms where wave action abrasion is a prominent process. If it is currently being fashioned, it will be exposed only at low tide, but there is a possibility that the wave cut platform will be hidden sporadically by a mantle of beach shingle the abrading agent . If the platform is permanently exposed above the high water mark, it is probably a raised beach platform, which is not considered a product of abrasion. Abrasion is the kind of physical weathering... This could also be described as corrasion See also Erosion Glacial striation Sedimentary Marine terrace Weathering geomorph stub DEFAULTSORT Abrasion Geology Category Sedimentology Category Glaciology bn bg ca Abrasi geologia cs Abraze da Abrasion de Korrasion et Abrasioon geoloogia es Abrasi n eu Abrasio fa gl Abrasi n xeolox a hr Abrazija id Abrasi it Corrasione he ka kk ht Abrazyon jewoloji lt Abrazija geologija nl Abrasie no Abrasjon nn Abrasjon pl Korazja ro Abraziune geologie ru sah sk Abr zia geol gia sl Abrazija geologija sh Abrazija fi Abraasio geologia sv Abrasion tk Abrazi a uk zh ... more details
DISPLAYTITLE Abax genus Taxobox name Abax image Abax.parallelepipedus.jpg image width 240px image caption Abax parallelepipedus regnum Animal ia phylum Arthropod a classis Insect a ordo Beetle Coleoptera familia Carabidae genus Abax genus authority Bonelli, 1810 Abax is a genus of Carabidae carabid beetle s. ref http tolweb.org Abax 51655 2006.07.07 Abax Bot generated title ref ref cite web url http carabidae.pro carabidae abax bonelli 1810.html title Abax Bonelli, 1810 year 2011 work Carabidae of the World accessdate 27 Mar 2012 ref There are approximately 100 mostly holarctic species and subspecies in this genus. ref http zipcodezoo.com ZipcodeZoo Bot generated title ref These beetles are mostly glossy black with parallel striation on elytra . They are carnivorous . Species Image Abax.carinatus. .calwer.06.04.jpg thumb 250px right A. carinatus Abax arerae small Schauberger, 1927 small Abax baenningeri small Schauberger, 1927 small Abax beckenhauptii small Duftschmid, 1812 small Abax carinatus small Duftschmid, 1812 small Abax continuus small Ganglbauer, 1891 small Abax ecchelii small Bertalini, 1887 small Abax exaratus small Dejean, 1828 small Abax fiorii small Jakobson, 1907 small Abax oblongus small Dejean, 1831 small Abax ovalis small Duftschmid, 1812 small Abax parallelepipedus small Piller & Mitterpacher, 1783 small Abax parallelus small Duftschmid, 1812 small Abax pilleri small Csiki, 1916 small Abax pyrenaeus small Dejean, 1828 small Abax schueppeli small Palliardi, 1825 small Abax springeri small J. Muller, 1925 small Abax teriolensis small Schauberger, 1921 small References Reflist DEFAULTSORT Abax Genus Category Carabidae Carabidae stub de Abax es Abax fr Abax it Abax no Abax ru Abax vi Abax chi ng v t ... more details
infobox laboratory equipment name Static mixer image Chemineer Kenics Static Mixer.JPG alt caption A promotional sample of a helical static mixer enclosed in a clear tubular housing acronym other names uses Mixing related Magnetic stirrer , vortex mixer A static mixer is a device for mixing two fluid materials. Normally the fluids to be mixed are liquid, but static mixers can also be used to mix gas streams, disperse gas into liquid or blend immiscible liquids. The device consists of mixer elements contained in a cylindrical tube or squared housing. These can vary from about 6 mm to 6 meters diameter. Static mixer elements consist of a series of Baffle in vessel baffles made of metal or a variety of plastics . Similarly, the mixer housing can be made of metal or plastic. Typical construction materials for static mixer components included stainless steel , polypropylene , Teflon , PVDF and polyacetal . The overall system design incorporates a method for delivering two streams of fluids into the static mixer. As the streams move through the mixer, the non moving elements continuously blend the materials. Complete mixing depends on many variables including the fluids properties, tube inner diameter, number of elements and their design. Design file Static mixer flow diagram.png thumb Depiction of how flow division and radial mixing occur in a static mixer file Static Mixer Flow Division.png thumb Flow division in a static mixer is a function of the number of elements in the mixer A static mixer s fixed, typically helical elements can simultaneously produce patterns of flow division and radial mixing Flow division In laminar flow , a processed material divides at the leading edge of each element of the mixer and follows the channels created by the element shape. At each succeeding element, the two channels are further divided, resulting in an exponential increase in stratification. The number of wikt striation striation s produced is 2 sup n sup where n is the numbe ... more details
Taxobox name Glycymerididae image Tucetona laticostata 2.JPG image caption One valve of a bivalve shell shell of Tucetona laticostata regnum Animal ia phylum Mollusca classis Bivalvia subclassis Pteriomorpha ordo Arcoida familia Glycymerididae familia authority Newton, 1922 subdivision ranks Genera subdivision 4, see text Glycymerididae , previously known as Glycymeridae , common names dog cockles or bittersweets , is a worldwide Family biology family of salt water clams, Marine ocean marine bivalve mollusk s in the superfamily Arcoida . They are related to the ark clam s. This family contains 45 species in four genera. Description In this family the shell is generally round in outline and is slightly longer than it is wide. The external ligament lacks transverse wikt striation striation s. The shell in some genera is smooth and in others it is ribbed. History of the name The name of the family was originally Glycymeridae when it was established in 1916. The name comes from the Ancient Greek word glykymaris perhaps from Glykys sweet and Meris part , a word which is only recorded once in Greek literature. The family name was changed to the current name in 1957, following the International Code of Zoological Nomenclature ICZN rules of naming. This change remains somewhat controversial, however the present name has become more widely used since 1969. ref http findarticles.com p articles mi qa3790 is 200105 ai n8936756 pg 10 Shell morphology, shell texture and species discrimination of Caribbean Tucetona bivalvia, glycymeridae Journal of Paleontology Find Articles at BNET.com Bot generated title ref Genera and species Genera and species in the family Glycymerididae include Axinactis Axinactis inaequalis small Sowerby, 1833 small Glycymeris small da Costa, 1778 small Glycymeris albolineata small Lischke, 1872 small White lined bittersweet Glycymeris amboinensis Glycymeris americana small DeFrance, 1829 small Giant bittersweet Glycymeris arcodentiens Glycymeris bimaculata ... more details
and Striation Six Striators by scores of 2 0 and 3 0, respectfully. ref http www.playfloorball.com ... 3516&leagueID 10971&gameID 827379 , Canada Cup Floorball Championship Can Am United FC vs. Striation ... 1 center center 8 center bgcolor E6E6FA Flag icon Ontario Striation Six Striators Striation Six ... more details
italic title Taxobox name Microphysula cookei image Microphysula cookei shell.jpg image caption shell of Microphysula cookei from its original description regnum Animal ia phylum Mollusca classis Gastropoda subclassis superordo ordo Pulmonata subordo Eupulmonata infraordo Stylommatophora superfamilia Helicoidea familia Thysanophoridae subfamilia genus Microphysula species M. cookei binomial Microphysula cookei binomial authority Henry Augustus Pilsbry Pilsbry , 1922 ref name Pilsbry Pilsbry H. A. October 1922. Description of a new Zonitoides . http www.archive.org details nautilus36amer The Nautilus, Volume 35 , number 2, pages http www.us.archive.org GnuBook ?id nautilus36amer 51 38 39, figure 1. ref synonyms Zonitoides cookei Pilsbry, 1922 Microphysula cookei , common name the Vancouver snail , is a species of air breathing land snail , a terrestrial animal terrestrial pulmonate gastropod mollusk in the family Thysanophoridae . Original description The species Microphysula cookei was originally described as Zonitoides cookei by Henry Augustus Pilsbry in 1922. ref name Pilsbry Pilsbry s original text the type description reads as follows Cquote Zonitoides cookei n. sp. Fig. 1. The gastropod shell shell is discoidal, the spire mollusc spire very slightly convex, Umbilicus mollusc umbilicus regularly diminishing inward, very nearly one fourth the diameter of the shell whitish, glossy, smoothish, under the microscope showing faint growth lines and on the upper surface an excessively minute, close and shallow spiral striation on the last 2 or 3 whorl mollusc whorls . The whorls increase slowly and are rather convex, the suture gastropod suture rather deeply impressed, body whorl last whorl rounded peripherally. The aperture mollusc aperture is rather narrow, crescentic. Height 1.7, diam. 3.6 mm. 4 math begin matrix frac 1 2 end matrix math whorls. Cameron Lake British Columbia Cameron Lake , Vancouver Island . Type no. 130623 Academy of Natural Sciences A. N. S. P. Spe ... more details
Image Moss Island potholes.jpg thumb Moss Island hanging Giants kettle pothole Moss Island in Little Falls city , New York Little Falls, New York is an igneous intrusion of Syenite in the Mohawk Valley with the Little Falls at one end. It became an island when locks were built so boats could avoid the 40 ft falls. It is known for its extremely large 40 50 ft Giant s kettle potholes ref http epod.usra.edu archive epodviewer.php3?oid 385824 Earth Science Picture of the Day Hanging Pothole on Moss Island ref as well as being popular with local rock climbers. It was declared a National Natural Landmark in May 1976 ref http www.nature.nps.gov nnl Registry USA Map States NewYork NNL MI index.cfm NPS NNL Summary ref There are ongoing efforts by the local community to turn Moss Island into a New York State Park. ref name lft http www.littlefallstimes.com archive x1001335460 SUNY ESF professors tour Moss Island Little Falls Times article regarding Moss Island ref Description Moss Island is 1500 feet long and 625 feet wide. ref name lft It is bordered by the Mohawk River on the north and the New York State Canal System NYS Barge Canal to the south. It is covered in dwarf oak trees. Glacial striation , also known as glacial scrapes, are visible in some places. History The potholes were created by huge volumes of water falling over a prehistoric cataract once located here, much like modern day Niagara Falls. At that time, perhaps 20,000 80,000 years ago, the Great Lakes drained through the Mohawk Valley Hudson River because the St. Lawrence River was blocked by glaciers. The first locks around the waterfall were created in 1793 ref name albany http www.albanyweblog.com 2008 08 Aug 08 08 08.php Visit to site ref A dry 19th century Eire Canal lock Enlarged Erie Canal Lock 36 is located next to the southeastern service road. The current Lock 17 is one of the tallest locks of its type in the world and the largest in the NYS Barge Canal system. The lock uses a guillotine gate on its ... more details
This table gives an overview of the pathology seen in myocardial infarction by time after obstruction. For the first 30 minutes no change at all can be seen by gross examination or by light microscopy in histopathology . However, in electron microscopy relaxed myofibrils, as well as glycogen loss and mitochondrial swelling can be seen. class wikitable Time Gross examination Histopathology br light microscopy 0 0.5 hours None None 0.5 4 hours None Glycogen Depletion, as seen with a PAS Stain Possibly waviness of fibers at border 4 12 hours Sometimes dark Mottle mottling Initiation of coagulation necrosis Edema Hemorrhage 12 24 hours Dark mottling Ongoing coagulation necrosis Karyopyknosis Hypereosinophilia of myocytes Contraction band necrosis in margins Beginning of neutrophil infiltration 1 3 days Infarct center becomes yellow Tan color tan Continued coagulation necrosis Loss of nuclei and Cardiac muscle Striation striations Increased infiltration of neutrophils to Interstitial fluid interstitium 3 7 days Hyperemia at border Softening yellow tan center Beginning of disintegration of dead muscle fibers Necrosis of neutrophils Beginning of macrophage removal of dead cells at border 7 10 days Maximally soft and yellow tan Red tan margins Increased phagocytosis of dead cells at border Beginning of granulation tissue formation at margins 10 34 days Red gray and depressed borders Mature granulation tissue with type I collagen ref Bishop JE, Greenbaum R, Gibson DG, Yacoub M, Laurent GJ. Enhanced deposition of predominantly type I collagen in myocardial disease. J Mol Cell Cardiol. 1990 22 1157 1165 ref 2 8 weeks Gray white granulation tissue Increased collagen deposition Decreased cellularity More than 2 months Completed scarring Dense collagenous scar formed colspan 3 font size 1 If not else specified in boxes, then reference is nr ref name Kumar11 2 Table 11 2 in cite book author Mitchell, Richard Sheppard Kumar, Vinay Abbas, Abul K. Fausto, Nelson title Robbins Basic P ... more details
Carreg Cadno rock of the fox in English is a hill five miles northeast of Abercraf in the county of Powys , south Wales . It lies within the Brecon Beacons National Park and Fforest Fawr Geopark . Its summit at OS grid ref SN 874161 reaches a height of 538m 1763 ft above sea level. The hill is within the Ogof Ffynnon Ddu national nature reserve which is owned and managed by the Countryside Council for Wales . ref Ordnance Survey Explorer map OL12 Brecon Beacons National Park western area ref Geology The southern slopes of the hill are formed from the Marros Group Twrch Sandstone , a coarse quartzitic sandstone gritstone , formerly known as the Marros Group Basal Grit of the Millstone Grit Series, and laid down during the Namurian stage of the Carboniferous period . The northern slopes are formed from the underlying Carboniferous Limestone . The area displays various features typical of karst ic landscapes including hundreds of shakehole s in both the limestone and the gritstone areas. Substantial areas of gritstone country have foundered strata foundered as the underlying limestone has dissolved away and caverns have collapsed. There are also areas of both limestone pavement and gritstone pavement. The latter occasionally retain glacial striation striations on their polished upper surfaces due to scratching by stones embedded in the base of a moving icesheet during the last ice age some 18,000 years ago. There are also pockets of silica sand where the gritstone has been intensively weathered. An economically valuable deposit of silica sand was worked near Pwll Byfre for many years and transported by tramroad to make refractory brick s firebricks or silica bricks at the nearby Penwyllt Dinas Silica Brick Works. Ogof Ffynnon Ddu , Britain s deepest cave lies under the northern slopes of Carreg Cadno. The vertical interval between the sink of the Byfre Fechan stream at Pwll Byfre and its resurgence at Ffynnon Ddu is 300m 1000 ft. The national nature reserve h ... more details
Taxobox image image caption Oreohelix carinifera regnum Animal ia phylum Mollusca classis Gastropoda unranked superfamilia clade Heterobranchia clade Euthyneura br clade Panpulmonata br clade Eupulmonata br clade Stylommatophora br informal group Sigmurethra superfamilia Punctoidea familia Oreohelicidae subfamilia genus Oreohelix subgenus species O. carinifera binomial Oreohelix carinifera binomial authority Henry Augustus Pilsbry Pilsbry , 1912 ref name Pilsbry1912 Henry Augustus Pilsbry Pilsbry H. A. 1912. Two new American land shells collected by Mister Mr. Messr. Hebard and Rehn . The Nautilus, http www.archive.org details nautilus26amer volume 26 , http www.archive.org stream nautilus26amer page 88 mode 1up 88 90. ref synonyms Oreohelix carinifera , common name keeled mountainsnail , is a species of air breathing land snail , a terrestrial animal terrestrial pulmonate gastropod mollusk in the family Oreohelicidae . Original description Oreohelix carinifera was originally described by Henry Augustus Pilsbry in 1912. ref name Pilsbry1912 The type locality is Garrison, Montana , USA. Pilsbry s original text the type description reads as follows Cquote OREOHELIX CARINIFERA, n. sp. The gastropod shell shell is lenticular, carinate, umbilicate, the width of Umbilicus mollusc umbilicus between a fourth and a fifth that of the shell, whorl mollusc whorls 4 , slowly increasing, the first 2 strongly convex, obliquely striate, the striae finer on the protoconch embryonic portion . Subsequent whorls are strongly convex around the upper inner part, becoming concave near the outer edge the striation is rougher, and some weak traces of spiral striae appear in places. The body whorl last whorl is noticeably concave above and below the peripheral keel it descends very slightly or not at all in front, and on the base there are very inconspicuous, well spaced spirals composed of granules. The oblique alt. and the diameter of the aperture mollusc aperture are equal, and there is a ... more details
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