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“the vessel is wooden with copper sheathing covering the bottom of its hull. ” “initial observations also noted copper and iron artifacts at the site, but no diagnostic artifacts.
May 26, 2010 been observed to correspond with segments of ophthalmoscopically observed sheathing.
Branched venation, and does not form a sheathing leaf base at the insertion point on the node. By contrast, initiation of the sheathing monocot leaf coincides with knox down-regulation around the entire circumference of the maize sam (smith etal. 1992), such that the lateral domains of the monocot blade and sheathing leaf base are initiated during.
Blood vessels on the inner retinal layer may be white and sheathed, and white ' snowflakes' may be visible. Retinal fibrosis, white retinal flecks and vascular attenuation or sheathing.
Jan 15, 2017 qualitative and quantitative retinal observations can reveal unfolding, worsening the retinal vessels should be studied during clinical examination. Changes in the shape, color and caliber of vessels can represent.
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Although the first trials with copper sheathing had been made 50 years before the rapid sank in 1812, the use of copper sheathing and fastening by merchant vessels only dated from the 1780s. By 1810 copper sheathing was still restricted to vessels working in the slave trade, the east indies trade and other voyages into tropical seas.
Vessel modifications observed in long-standing jia-uveitis are not signs of vascular of vessel walls and flow; no sheathing or leakage of dye was observed.
Submarine, any naval vessel that is capable of propelling itself beneath the water as well as on the water’s surface. This is a unique capability among warships, and submarines are quite different in design and appearance from surface ships.
106 applies to atmospheric tanks as well as vessels (low pressure vessels and pressure vessels). In regard to pressure vessels, the standard references the asme boiler and vessel code of 1968 for their construction.
The perivascular sheathing and retinal whitening demonstrated stability on dilated ocular examination compared to the previous visit od (fig. There was improvement in optic disc hyperemia and preretinal and retinal hemorrhages along the inferior arcade.
The lumen of the vessel was extremely narrow but was preserved with healthy endothelial cells. It is suggested that increased and disarranged collagen fibrils in the vessel wall is related mainly to the ophthalmoscopic appearance of the pipestem sheathing.
The legs were cathodically protected which resulted in fouling of the cu-ni. Unexpectedly, divers have observed that the biofouling mass on the sheathing is reduced to about 30% compared to the adjacent steel in spite of the cathodic protection.
Copper sheathing reduced capital costs and increased ship speeds, which in the case of the slave trade reduced mortality on the middle passage and brought slaves to the americas in better.
Specialties external insulation to ducting systems, insulation and sheathing of chilled water, hot water, steam and condensate pipe work, acoustic pipe insulation, insulating and metal sheathing of vessels, tanks, chillers, headers, flues and silencers, insulating and sheathing of plenums and wall for soundproofing, and installing and certifying of fyrewrap to duct requiring fire treatment.
Feldmeier equipment offers a variety of tanks and vessels for all of your processing needs. Whether storing raw ingredients or mixing your final product, there are many options that we can provide. From small to large, atmospheric to pressure, cooling to heating, our team can design the equipment you require.
Detection of retinal vasculitis is made clinically, and is confirmed with the help of fundus fluorescein angiography. Active vascular disease is characterized by exudates around retinal vessels resulting in white sheathing or cuffing of the affected vessels. In this review, a practical approach to the diagnosis of retinal vasculitis is discussed based on ophthalmoscopic and fundus fluorescein angiographic findings.
Ocular ischemic syndrome (ois) is caused by decreased blood flow to the ocular blood vessels, which is due to stenosis or occlusion of the common or internal carotid arteries. 9 the decreased blood flow from the retinal arterioles to the capillaries causes a significant decrease in vascular pressure and secondary venous stasis.
Submarine, any naval vessel that is capable of propelling itself beneath the water the turtle was unable to force the screw through the copper sheathing on the fitted with a glass-covered porthole permitted observation from within.
Sheathing and widening of the vessel “light reflex” due to a deposition of hyaline and inflammatory cell debris within blood vessels walls. This is a body mechanism to keep lumens of arteries constricted (reducing blood flow) so that capillary beds don’t explode. If you’re body can’t hold this increased pressure anymore you will leak out of your arteries (exudation) or have an out-pouched vessel (aneurysm) but still.
Work was needed on the vessel, and the dockyard began sheathing and filling he had submitted the results of his observation of the solar eclipse in august.
Since on merchant vessels the upper pieces of sheathing overlapped the lower, and we know this was a merchant vessel, it allows us to properly rotate and orient the piece. With the overlap mark at the top), it puts the end with the other overlap mark on its right.
No clear bundle sheath evident around smaller veins, although a bundle sheath present on larger veins (fig. Laticifers present adjacent to phloem of veins; no fibers associated with veins.
The rupture of bridging vessels results in optic nerve sheath hemorrhage. Kubik cs: follow up report with clinical and anatomical notes on 280 patients with.
The retinal vessels should be studied during clinical examination. Changes in the shape, color and caliber of vessels can represent ocular manifestations of many systemic conditions. Examining the arteriolar-venular caliber ratio can assist in diagnosing vascular abnormalities and associated pathology.
The manuscript also briefly explores the use of metallic ship sheathing during the eighteenth and nineteenth centuries, focusing specifically on the pure copper sheathing found on the mica wreck. Sheathing from numerous contemporary vessels will be analyzed and compared to the mica shipwreck sheathing.
Retinal vessels resulting in white sheathing or cuffing of the affected vessels.
The use of copper for sheathing the bottoms of wooden ships was first introduced in the middle of the 18th century. The oak timbers of the old wooden sailing-ships were always liable to be attacked by the dreaded teredo or shipworm when in warm seas.
Nov 9, 2012 note the tapering of the blood columns as the vessels approach the lesion and also the white sheathing of the vessel walls. And they have all remained unchanged for more than 10 years of observation without treatment.
C846-16 - standard practice for application of cellulosic fiber insulating board for wall sheathing. C856/c856m-20 - standard practice for petrographic examination of hardened concrete. C857-19 - standard practice for minimum structural design loading for underground precast concrete utility.
A sheathing has a longitudinal direction and a transverse direction for restoring function of venous valves of varicose veins in the form of a planar, flexible piece of material, wherein the piece of material includes a nonwoven material.
A sailing ship is a sea-going vessel that uses sails mounted on masts to harness the power of wind and propel the vessel. There is a variety of sail plans that propel sailing ships, employing square-rigged or fore-and-aft sails.
Identifying observational requirements to build and sustain a global ocean observing system requires input from the user community.
None of the hull above the water line of the ship where the copper sheathing ended has survived. The upper edge of sheathing shows no sign of damage through collision, fire, or slow collapse of the upper works after sinking.
Perivascular sheathing the classic feature of retinal vasculitis is presence of sheathing around the vessel wall. The perivascular sheathing is a collection of exudation consisting of inflammatory cells around the affected vessels. This results in appearance of a white cuff around the blood vessels. Retinal vascular sheathing is a common manifestation described with clinical entities like multiple sclerosis and eale’s disease.
• vessel life span is generally short at less than 5 years for small vessels and less than 10 years for larger vessels. Considerable maintenance is required, mainly in the form of re-caulking or sheathing to stop leaks. • the majority of vessels on the east coast are small ( 8 m), un-decked and motorised.
Periarteriolar sheathing may be visible, indicating the earlier presence of a cholesterol embolus. 18 when sheathing occurs at an arteriolar bifurcation, it is referred to as “pants leg sheathing,” which is pathognomonic of prior embolism.
In the meantime the copper sheathing was removed from alarm, and several other test vessels until an effective solution to the corrosion problem could be developed. Later in her career she was commanded by a young john jervis, from 1769 onwards. He sailed for the mediterranean in may and arrived in genoa on 7 september.
Vessels, whereas gass plaques are found away from sites of bifurcation. “silver streaks,” “sheathing,” “gass plaques,” and “pearls” all represent chronic changes---changes that gradually develop over a long time, due to past active disease.
5 appendix table 1 investigates the connection between copper sheathing and crowding among british voyages; all else equal, copper sheathing was associated.
Additional experiments and observations on the appli-cation of electrical combinations to the preservation of the copper sheathing of ships, and to other purposes. 1 have already had the honour of communicating to the royal society the results of my first researches on the modes.
Vessel loading observation certificates are required for all commodities, excluding bagged whole grains, shipped under the pl 480 title ii, food for progress,.
In early stages, venous dilatation and tortuosity are seen in the periphery. 37 accumulation of exudate around peripheral retinal venules appears as thin white lines parallel to the blood column and can obscure the vessel. Areas of vascular sheathing frequently leak fluorescein dye; however, the sheathing does not always correspond to the staining, nor is the amount of leakage proportional to the activity of the inflammation.
The sheathing of a ship's hull with 90-10 copper-nickel foil has involved the application of adhesive-backed panels (approximately 210mm x 500mm) to the prepared hull, allowing about 15mm overlap. The panels are easily cut and manipulated even over the most difficult of contours.
Sep 17, 2015 observations, however, the inspector must not remain on the vessel to where deck sheathing exists, are records available regarding removal.
For example, in the november 1787 publication of federalist number 12, he wrote, “a few armed vessels, judiciously stationed at the entrances of our ports, might at small expense be made useful sentinels of the laws. ” in october 1789, secretary hamilton sent a circular to customs collectors making known his interest in employing federal.
Vasculitis involving the eye typically is a result of inflammation of the tiny blood vessels of the retina (retinal vasculitis). Damage to the blood vessels of the retina can cause partial or complete blindness.
Does the operator’s representative visit the vessel at least bi-annually? the ship manager vessel visit is twice a year and marine manager is once a year. 5 is a recent operator’s audit report available and is a close-out system in place for dealing with non-conformities?.
The disc often appears more yellowish and sheathing of the vessels in the disc area may be present.
Jan 15, 2010 the colour fundus (top left) of right eye shows obliterated vessels as white lines large vessels are commonly observed in the area of nonperfusion. Periphlebitis and sheathing of vessels in 84% of eyes, kinky tort.
The cholesterol embolus is the most common type of retinal embolus seen. 17 these emboli often appear slightly larger than the blood vessel they are within, and are usually clumped as multiple tiny yellow crystals at the bifurcation. 17 they often reflect brightly, depending on the angle of the light source.
Thesheathing affecting long segmentsofthe retinal blood vessels simulated sheathing seen in retinal ischaemia rather than the multifocal opacifications seen in retinal vasculitis or following embolism withoutprolongedischaemia. However,it is difficult to accept that there had been prolonged retinal.
In 1937, harden demonstrated a consistent finding of dilated and tortuous retinal vessels in patients with scd, and this finding was further substantiated by klinefelter in 1942. However, it was not until 1942 that the underlying mechanism of sickle cell retinopathy was proposed.
Copper sheathing is the practice of protecting the under-water hull of a ship or boat from the corrosive effects of salt water and biofouling through the use of copper plates affixed to the outside of the hull. It was pioneered and developed by the royal navy during the 18th century. In antiquity, ancient greeks used lead plates to protect the underwater hull.
Aug 25, 2020 vasculature: primarily, embolization, sheathing, and ghost vessels. Rare, although multiple emboli in the same eye are observed more.
Lateral wall pitting of vessels essentially scalariform (fig.
Findings included bilateral peripapillary arteriolar sheathing (30%), arteriolar narrowing (80%), and arteriovenous nicking arterial changes and cerebral small vessel disease lary region observed in 3 (30%) cadasil patients (figur.
The sheathing shows good impact resistance and adds integral strength to the vessel's hull. 7 the test programme experience gained during the five year evaluation period of the system confirms similar performance results published in the usa and europe during the past 27 years of trials and testing using 90-10 cu-ni alloy for the fabrication of ship hulls in marine service.
In the report 'observations on the inflammation of the internal coats of the veins' feature of retinal vasculitis is presence of sheathing around the vessel wall.
Foam sheathing contribution to siding failures: contributing to moisture damage in wood clapboards nailed over foam is the observation that because the foam provides no support for the nails passing through it, any movement in the wood (such as due to thermal or moisture changes) can cause the wood to loosen and drop out of alignment.
One vessel is a slow ferry (10 knots), constructed of fibreglass reinforced polymer, which was retro-fitted with copper-nickel sheathing in 1993. The other vessel is a fast catamaran ferry (22 knots) with a frp hull, which was sheathed during construction in 1994.
Eales disease; perivascular sheathing; vascular leakage; neovascularization vessel sheathing, peripheral non-perfusion and extensive neovascularization.
Dye leakage from sheathed vessels in the late phase of fluorescein angiogram and no signs of stasis or occlusion.
The cutters also piloted commercial vessels through especially treacherous harbor waters and marked hazards to navigation, as described in a 1793 newspaper notice for baltimore harbor: “we, the officers of the united states cutter active have fixed a long spar on the most dangerous spot, with a red flag at the top, on which is the word.
Physical examination — abnormalities in the retinal vessels may be observed upon physical examination. Funduscopic findings include visible accumulation of inflammatory cells along vessel walls (vascular sheathing) the peripheral vessels are often more involved than central arterioles and venules, and there are frequently skip areas.
Observations on functional wood histology of vines and vessel elements, helical sculpture in vessels, starch-rich parenchyma adjacent to vessels, and other sheathing of vessel groups with parenchyma.
[observations on the relationship between the sheathing of the retinal vessels, irregularity of the arteriolar caliber, increased arterial reflex of the retina and the brachial blood pressure or age].
Inconsistent measurement of ship tonnage, the denominator in the usual measures of crowded conditions on slave vessels, may confound estimated associations between crowding and slave mortality on the middle passage.
Both typical and more unusual merchant vessels of various nationalities. 3 helpful as the work is in looking at and determining vessel shapes, it provides little information on actual construction practices. Although treatises are useful to some degree, knowledge about eighteenth-century colonial american merchant ship construction has advanced.
Optic disc and white sheathing of the upper nasal retinal vessels were noted. Nearly 4years after concluding the treatment), the upper nasal retinal vessels showed marked radiation changes with extension ofthe sheathing out to the periphery (fig.
Retinal or vitreal hemorrhages are rarely observed, occurring in fewer than 3% of spontaneous regression with gliosis, sheathing and lack of feeder vessels.
Additional experiments and observations on the application of electrical combinations to the preservation of the copper sheathing of ships, and to other purposes.
All of these vessels were characterized by a marked increase and disarrangement of collagen fibrils in the media and adventitia. Cytoplasmic processes of glial cells had invaded the adventitia in sheathed vessels and even in unsheathed ones. Thickening and multilamination of the basal laminae were observed in both the sheathed and unsheathed vessels.
Reducing vessel sheathing the west coast ports were using more lumber for sheath- ing the interior of vessels than appeared to be required by coast guard regulations. We informed the commander, western area, military traffic management and terminal service (mtmts), of our observations.
In the fa images, staining of retinal vascular walls in arteries (yellow arrow) and veins (blue arrow) was observed.
Jun 30, 2018 the optic disc was pale and the retinal vessels were attenuated.
Nov 22, 2018 eales disease, perivascular sheathing, retinal vasculitis there is also observed dye extravasation at the peripheral infero-nasal vessels (blue.
If heavier sheets of copper were used for the sheathing this vessels owned by shepeard of london, and on the fortune, a vessel in the africa trade. See an account of several new inventions and improvements (london, printed for james astwood, i69i), which is bound with the jnew invention of mill'd lead for sheathing of ships against the worm (i69i).
The national data buoy center's ship observations report page. It lists the latest voluntary observing ship (vos) observation data.
- all six patients improved spontaneously, but were left with sheathing of retinal vessels and the formation of vessels on the optic disc - they called this condition retinal vasculitis and believed it to be due to a central retinal vein occlusion secondary to an inflammatory vasculitis of the venous system.
White cuff around retinal vessels that looks like frosting (vascular sheathing) made up of perivascular lymphocytes; caused by vascular inflammation (vasculitis) associated with sarcoidosis, behçet disease, and other autoimmune conditions.
The remains of the hull are more or less intact up to the water line, according to noaa, which notes that the copper sheathing has protected the ship’s timbers.
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