| 词汇 | example_english_membrane |
| 释义 | Examples of membraneThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. In addition, it is commonly thought that endocytosis is a process leading to degradation, while fertilization occurs through the fusion of membranes. Throughout the length of the bar the two plasma membranes are closely apposed, separated by a translucent space. Major expenses are medical supplies and drugs (53 percent) with hemodialysis membranes as the major cost-driver. Laminated membranes (lm) are present in the thin cytoplasmic lining of the parental uterus. The tegument, lacking lateral membranes, is a syncytium surrounding the entire parasite. The system is predominantly located in the mitochondrial membranes, with very little activity detectable in the soluble fraction of the organelle. Since these vesicles are associated with the inner and the outer plasma membranes of syncytium, they are likely to be involved in endo- or exocytosis. Premature rupture of the membranes occurred at 30.6 weeks of gestation and an emergency cesarian section was performed. In general, the membranes of nurse cells and follicle cells were less densely decorated with precipitates than the oolemma. The separated proteins were transblotted onto nitrocellulose membranes and protein spots bound to streptavidin were detected as described above. A paradox arose from this obser vation because it was known that respiratory enzymes are immobilized in membranes. The deleterious effects of drying on membranes decreased during seed development. Therefore, the cells (organelles and membranes) are destroyed mechanically by ice crystals, leading to death through cell lysis. The lipid bilayer matrix of the membranes of normal cells is in a liquid crystalline (fluid) state. Lipid microdomains in model and biological membranes: how strong are the connections? Infection may lead to considerable morbidity, and has been associated with premature rupture of membranes, pre-term labour and low birth weight [3]. Following ingestion, oncospheres are liberated from egg membranes and, if in a suitable host, actively penetrate the gut of the copepod into the body cavity. Both the multilaminated cells and the embryonic membranes possessed features that indicated that they are involved in transport of nutrients. A prime cause of extraerythrocytic origin would be expected to act equally on the membranes of all red blood cells in the infected animal. However, some macrophages showed little or no deposit on phagosomal membranes around promastigotes and others showed scattered deposit over their free surface. A method has been developed to isolate the surface membranes to a high level of enrichment. The only contaminants present were red blood cells and, as determined by electron microscopy, some cell debris but no host vacuolar membranes. Diffusive processes take on special importance in the transport of ions across biological membranes. Thermal motions and function of bacteriorhodopsin in purple membranes : effects of temperature and hydration studied by neutron scattering. The strategy just described could potentially be applied to test for the presence of lipid microdomains in biological membranes. Ionic conductance changes in lobster axon membranes when lanthanum is substituted for calcium. Divalent ions and surface potential of charged phospholipid membranes. Interaction of adrenocorticotrophin-(11-24)-tetradecapeptide with neutral lipid membranes revealed by infrared attenuated total reflection spectroscopy. Doubly-lipidmodified protein sequence motifs exhibit long-lived anchorage to lipid bilayer membranes. Are the fusion processes involved in birth, life and death of the cell depending on tilted insertion of peptides into membranes ? The mucocutaneous and mucosal forms cause severe destructive lesions of mucous membranes of the oral, nasal and pharyngeal tract. The membranes used in a feeding device can therefore be prepared in advance, frozen and only thawed as needed. We find this to be the case also for trypanosome plasma membranes. The yield of plasma membranes (calculated from more than 10 experiments) varied between 0-2 and 0-4 % of total trypanosome protein. They consist of a nested membranes in which molecules react. The juxtaposition of astrocytic membranes with presynaptic and postsynaptic elements is important for regulating synaptic transmission and plasticity. In slightly more mature individuals the early embryonic membranes no longer appeared to be composed of individual cells. Evaluation of a rapid strip test for insulin-like growth factor binding protein-1 in the diagnosis of ruptured fetal membranes. Thrombin-enhanced matrix metalloproteinase-1 expression: a mechanism linking placental a br uption with premature r upture of the membranes. Increased incidence of apoptosis in non-labor affected cytotrophoblast cells in term fetal membranes overlying the cervix: implications for preterm birth. Defining the limits of survival: lethal pulmonary hypoplasia after midtrimester premature rupture of membranes. Factors that predispose to premature rupture of the fetal membranes. In the remaining 5-10% of term deliveries the membranes rupture prior to the onset of clinically apparent contractions. Abnormality of calcium channel inhibitor released from fetal membranes in preterm labor. A comparison of normal and premature ruptured membranes. Infection and premature rupture of the membranes signs of infection appear should be reappraised as a treatment option. Selected issues in premature rupture of the membranes: herpes, cerclage, twins, tocolysis, and hospitalization. Such organisms are known to produce enzymes such as proteases, mucinases, collagenases and elastases which would weaken the extraplacental membranes. He performed the procedure on detection of cervical dilatation with bulging membranes in the second trimester. Mucous membranes are involved in approximately 50% cases. On the other hand, sites of adhesion between extended surfaces such as cell membranes are generally held together by many bonds in parallel. The structure of cell membranes involved in intercellular communication. Effect of temperature and approach\\separation rates on binding and unbinding mechanisms of two adhering membranes exposing mobile ligand and receptor groups. In this case, individual proteins randomly dispersed over the membranes do not bind molecules on the opposing cell sufficiently strongly to aggregate the cells. Antimicrobial peptide pores in membranes detected by neutron in plane scattering. Either thalamic cell disfacilitation or overinhibition (central module) hyperpolarize thalamic cell membranes. The peri synaptic membranes were more deeply polarized when driven by clustered synapses, and least when driven by the unconfined distribution (second and third rows). All the results obtained are consistent with the concept that oligosaccharides may well be involved in the protection of membranes during dehydration. The cell walls were partially separated from the plasma membranes. The ability to withstand desiccation may also depend upon increased amounts (or a heightened capacity to synthesize) molecules which stabilize membranes. At water potentials near zero (high hydrations), both small (a1) and large (b1) solutes can enter between membranes. Crystals have a minimum stable size and are not found in regions where the membranes are very close together. They often contain swelling structures of the membranes, amorphous matter and dark osmophilic granules. Ultrastructural localisation of lectin binding sites of zonae pellucidae and plasma membranes of mammalian eggs. In general, cell adhesion induced by lectins is dependent on specific saccharide-containing binding sites on the cell membranes. A variety of methods has been developed to prevent formation of fertilisation membranes in sea urchin eggs. Ultrastructural localization of lectin binding sites of the zonae pellucidae and plasma membranes of mammalian eggs. Effects of various enzymes on the ability of hamster egg plasma membranes to fuse with spermatozoa. As a calmodulin inhibitor we used calmidazolium, which is particularly characterised both by its ability to cross membranes and by its calmodulin affinity. Embryos lost their blastocoelic cavity and showed vesiculation of trophectoderm cell membranes as above. Pupils were dilated with topical atropine sulfate (2%) and the nictitating membranes were retracted with phenylephrine hydrochloride (10%). In this specialized region, the two plasma membranes ran parallel to one another forming a uniform extracellular space. The yield of membranes was approximately 0-3% of the total cell protein. Indeed, they share a common terminal pathway composed of uterine contractility, cervical dilatation and rupture of membranes. The main causes of preterm birth remain premature rupture of membranes, pregnancy associated hypertension, multiple pregnancy and idiopathic preterm labour. If present, hence diamniotic, its appearance including site of origin, number of membranes within and thickness will help establish chorionicity. An aggressive interventional protocol for early midtrimester premature rupture of the membranes using gelatin sponge for cervical plugging. Ultrasound-indicated cervical cerclage: outcome depends on preoperative length and presence of visible membranes at time of cerclage. The mechanism involves carrier-type transporters in the microvillous and basal plasma membranes. Changes in prostaglandin transfer across human fetal membranes obtained after spontaneous labor. Ascending micro-organisms may gain access to the fetal membranes and decidua and activate macrophages to secrete metalloproteinases and cytokines. The relationship between prematurely ruptured membranes and fetal immunoglobulin production. The natural history of preterm ruptured membranes: what to expect of expectant management. Similar manipulation of intersibling interaction might be going on in the case of the parasitoid wasps that have polar body-derived membranes around their eggs. The resultant polycationic polyethylenimine-coated glass can retain cell membranes due to their negative charges. The resulting supernatant was called "cytoplasm" but actually contained cytoplasmic membranes as well. Only a small number of known bacterial species have intracellular membranes. Previous studies have shown that plasma-modified membranes revealed promising results in fouling reduction. Each embryo, with the exception of the controls, was exposed by creating a window in the shell followed by removal of the overlying membranes. The natural permeability of cellular membranes appears to be important for the survival of the arthropod under low oxygen or high carbon dioxide atmospheres. The bacteria were more uniformly contrasted and had ruffled outer membranes. Fifteen percent of the users of membranes will, occasionally, employ a bubble oxygenator for short procedures. Small membranes were less than the length of the atrial septum, and large membranes greater than this length. The viruses procure their membranes during this process and mature particles 'pinch off' from the cellular membranes. The collective rise in reactive oxygen and nitrogen species can aberrantly affect intracellular proteins, nucleic acids, lipids and cell membranes. Similar solutions trapped in asteroids during aqueous alteration, and in meteorites on aqueous planets, can form complex biomolecules, including vesicle-forming membranes. When used alone, the green stain generally labels all bacteria, including those with intact or damaged cell membranes. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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