(n.) An ornamental finish on the top of a wall or ridge of a roof.
Example Sentences:
(1) Hence, the absence of NGF receptors on premigratory neural crest and early migratory neural crest cultures was not due to enzymatic alterations of the receptor.
(2) Predominantly observed defects included neural crest cells in ectopic locations, both within and external to the neural tube, and mildly deformed neural tubes containing some dissociating cells.
(3) Our results suggest that cAMP may be an important regulator of phenotypic expression in at least some neural crest cell lineages.
(4) Neural crest cells give rise to various essential tissues in vertebrates.
(5) In the present study, we have compared the phosphorylation state of the fibronectin receptor in motile neural crest and somitic cells, in stationary somitic cells, and in Rous-sarcoma virus transformed-chick embryo fibroblasts, using immunoprecipitation following metabolic labeling.
(6) The staining method consisted of sequential treatment of slides with crest serum, fluorosceinated goat-antihuman and swine-antigoat antibodies, and propidium iodide.
(7) The participation of neural crest cells in development of the dermal skeleton is discussed by way of the repartition of the odontods within the pectoral fin.
(8) The talus was revascularized with a vascularized corticocancellous iliac crest bone graft.
(9) When the method proposed by Trela (1975) is applied, thin layers of the petrous crest are chiselled out until the common crus of the superior and posterior semi-circular becomes apparent.
(10) The center of resistance was located at 0.24 times the root length measured apical to the level of alveolar crest.
(11) By means of immunoreactivity for spot 35 protein, a novel cerebellar Purkinje cell-specific protein, the regional heterogeneity among non-pigmented ciliary epithelial cells of rats was demonstrated with reference to the antero-posterior and crest-valley directions of individual ciliary epithelial folds in immature and mature eyes.
(12) This is done by scoring the septal cartilage in its basal attachment to the maxillary crest, providing a "swinging door" which can be sutured finally as desired.
(13) The type II, III, IV, and V boutons appear mature at all ages examined but crest synapses formed by the type III terminals are observed in the later stages of the study.
(14) The use of the pectoralis major muscle only flap in conjunction with a free iliac crest bone graft for reconstruction of the mandible is described.
(15) The outer coat turned to be extremely sculptured, presenting as interlaced crests of various height.
(16) The effects of AAGTP are different in nervous tissue from other tissues, and experiments with that nucleotide have led to the discovery of a new, 32 kDa GTP-binding protein which appears only in neural crest cells.
(17) The neural crest has been suggested as the origin of the ectomesenchymomas.
(18) He had huge eyes, a wide, deep brow, an angel's mouth, with the upper lip crested.
(19) We have examined the distribution and function of the defined cell adhesion molecules, N-cadherin and N-CAM, in the emigration of cranial neural crest cells from the neural tube in vivo.
(20) On E7, a slender neuropil was present in the migrating cell clusters, but all the crest derived cells were uniform.
Roof
Definition:
(n.) The cover of any building, including the roofing (see Roofing) and all the materials and construction necessary to carry and maintain the same upon the walls or other uprights. In the case of a building with vaulted ceilings protected by an outer roof, some writers call the vault the roof, and the outer protection the roof mask. It is better, however, to consider the vault as the ceiling only, in cases where it has farther covering.
(n.) That which resembles, or corresponds to, the covering or the ceiling of a house; as, the roof of a cavern; the roof of the mouth.
(n.) The surface or bed of rock immediately overlying a bed of coal or a flat vein.
(v. t.) To cover with a roof.
(v. t.) To inclose in a house; figuratively, to shelter.
Example Sentences:
(1) The M&S Current Account, which has no monthly fee, is available from 15 May and is offering people the chance to bank and shop under one roof.
(2) The horizontal portion of the intracavernous ICA as well as the whole aspect of the aneurysm could be exposed as a result of the extended opening of the cavernous roof anterior to the posterior clinoid process.
(3) In 1986, Bill Heine erected a 25ft sculpture of a shark falling through the roof of his terraced house in Oxford .
(4) Nango's dwellings are built on skis so can be pulled around the beach, and have a glass roof to view the northern lights.
(5) A grassed roof, solar panels to provide hot water, a small lake to catch rainwater which is then recycled, timber cladding for insulation ... even the pitch and floodlights are "deliberately positioned below the level of the surrounding terrain in order to reduce noise and light pollution for the neighbouring population".
(6) For the roof, different odorants produced different activity patterns, which had profiles not simply described as regions of maximal and minimal responsiveness.
(7) The scheme is available to those who have one or more of the following technologies: solar PV panels (roof-mounted or stand alone), wind turbines (building mounted or free standing), hydroelectricity, anaerobic digestion (generating electricity from food waste), and micro combined heat and power (through the use of new types of boilers , for example).
(8) They were about to put the roof on it,” Hickman said.
(9) Just one problem (apart from the old roof falling off): it's 60 miles from my desk.
(10) On it rests the small village of Dholera – a cluster of houses with thatched roofs, muddy roads, and acres of flat, fertile land surrounding them.
(11) I have to put a roof over my son’s head.” Junior doctors will be balloted to decide whether to strike over a radical new contract imposed on them by the Department of Health, which redefines their normal working week to include Saturday and removes overtime rates for work between 7pm and 10pm every day except Sunday.
(12) Hydrogen sulfide poisoning from inhalation of roofing asphalt fumes is a rare but devastating injury.
(13) The keratinocytes of the blister roof showed aggregation of the tonofibrils at the periphery, and vacuolization of mitochondria and endoplasmic reticulum.
(14) The commemoration began when the clock on the neo-gothic Town Hall struck 12, and a maroon was fired from the roof.
(15) Glasgow Central station was also closed to the public after flying debris shattered part of the building's glass roof.
(16) Berkeley has launched a new design called the Urban House, a three-storey house with a private roof garden instead of a back garden.
(17) Now the fabric of the school is visibly crumbling: roofs leak and skylights are broken; the estimated cost of repairs is £1m.
(18) I went inside, and the sound of the rain on the roof and the darkness inside made me very afraid.
(19) The risk of getting malaria was greater for inhabitants of the poorest type of house construction (incomplete, mud, or cadjan (palm) walls, and cadjan thatched roofs) compared to houses with complete brick and plaster walls and tiled roofs.
(20) The operative method involves removal of portions of the orbital rim, orbital roof, and sphenoid bone.