(n.) A fortification commanding the extremity of a bridge nearest the enemy, to insure the preservation and usefulness of the bridge, and prevent the enemy from crossing; a tete-de-pont.
Example Sentences:
(1) The findings suggest that a brief hospitalization, perhaps two to three days, might be regularly utilized as a bridgehead for further ambulatory care, particularly for stress category patients with a high appointment failure rate.
(2) It could also perhaps afford the premium that Setanta's backers would be looking for in return for a bridgehead into the UK market.
(3) Several bridgehead nitrogen heterocycles were synthesized to be screened as antimicrobial agents, modeled after nalidixic acid.
(4) The secretary of state and national security adviser, Henry Kissinger, was an admirer and anxious that no bridgehead for the left should be established in Latin America by President Allende.
(5) Results obtained with these assays indicate that all peptides with a disulfide bridgehead in position 11 are inactive and that a cycle between positions 5 and 6 already strongly reduces the biological activity.
(6) This addition may result in the saturation of the bridgehead double bond, thus allowing the two triple bonds to approach each other, causing cyclization of the diyn-ene to form a phenylene diradical.
(7) All bornanedione isomers caused induction, and those with substituents on each of the three consecutive carbon atoms, including the methyl group at the bridgehead carbon, showed induction without supporting growth.
(8) The principal conflict is between the Saudis and Iran, which has established powerful political bridgeheads in Syria, Lebanon, Iraq, and Gaza.
(9) We need a lot of backing and support to fight against terrorism.” Kadyrov said : “Dostum noted that Isis is trying to make Afghanistan into a bridgehead … In order to prevent this threat, Kabul needs Russia’s support, as in Syria.” Sergei Lavrov, Russia’s foreign minister, says Moscow has not received a formal request for intervention from Kabul similar to that made by Syria’s president, Bashar al-Assad.
(10) Additionally, there is a new bridgehead further to remove employment protection in the labour market, trading employment rights for shares in the company.
(11) delta RM0 values of functional groups (methyl, ethyl, n-propyl, methylene, phenyl, benzyl, saturation) of nitrogen bridgehead compounds [PP = pyrido(1,2-a)-pyrimidine, THPP = tetrahydropyrido(1,2-a)-pyrimidine, CTM-PP = 2,3-cyclotrimethylpyrido(1,2-a)-pyrimidine, CTM-THPP = 2,3-cyclotrimethylenetetrahydropyrido(1,2-a)-pyrimidine, CTRM-PP = 2,3-cyclotetramethylenepyrido(1,2-a)-pyrimidine, CTRM-THPP = 2,3-cyclotetramethylene-tetrahydropyrido(1,2-a)-pyrimidine, CTRM-THPP = 2,3-cyclotetramethylene-tetrahydropyrido(1,2-a)-pyrimidine, THPQ = tetrahydropyrroloquinazoline-, HHAQ = hexahydroazepinoquinazoline-derivates have been calculated from difference of retention values measured on RP-di-C1 stationary phase using methanol + water mobile phases of 6 (10 respectively) various compositions and of retention values (RM0) extrapolated to 0% organic phase.
(12) The bonds from the bridgehead atom of the tricyclic ring to other ring atoms appear to be elongated [av.
(13) The molecules exist as hydrogen-bonded dimers [O14-H14...O16 (related by -x, 1-y, 1-z), O14...O16 2.775 (2), H14...O16 1.93 (2) A, O14-H14...O16 175 (2) degrees] which stack in columns along b. Distortion at the bridgehead double bond is observed.
(14) N-Demethylation of the bridgehead nitrogen was observed only in rat and hamster incubates.
(15) Structure determination has identified UK-63,052, C56H68N10O14S2, UK-63,598, C53H62N10O14S2 and UK-65,662, C55H66N10O14S2 as quinaldic acid substituted quinomycins with unusual bridgehead sulfur substitution as shown in Fig.
(16) We have synthesized a series of imidazo[4,5-b]- and -[4,5-c]pyridine analogues having an imidazo nitrogen relocated at the bridgehead position.
(17) And it’s clear that Cruz is establishing a bridgehead for the lessons of Latin America to find new relevance across what was once an unbridgeable divide.
(18) Initially, the neuroepithelial tissue of the rhombencephalon consists of a pair of rostral and caudal bridgeheads: the former the primary neuroepithelium of the cerebellum and the latter the primary neuroepithelium of the octavo-precerebellar system.
(19) However, Richard Brasher, chief executive of Tesco's UK operation, admitted that it needed to gain a bridgehead into exploiting growing consumer demand for accessing VoD content online in multiple formats and on different devices.
(20) The bridgehead atom of the alkene group, C7, has one short [C7--C6 1.485 (6) A] and one long [C7--C11, 1.541 (6) A] Csp2--Csp3 bond.
Molecule
Definition:
(n.) One of the very small invisible particles of which all matter is supposed to consist.
(n.) The smallest part of any substance which possesses the characteristic properties and qualities of that substance, and which can exist alone in a free state.
(n.) A group of atoms so united and combined by chemical affinity that they form a complete, integrated whole, being the smallest portion of any particular compound that can exist in a free state; as, a molecule of water consists of two atoms of hydrogen and one of oxygen. Cf. Atom.
Example Sentences:
(1) A series of human cDNA clones of various sizes and relative localizations to the mRNA molecule were isolated by using the human p53-H14 (2.35-kilobase) cDNA probe which we previously cloned.
(2) Glucocorticoids have numerous effects some of which are permissive; steroids are thus important not only for what they do, but also for what they permit or enable other hormones and signal molecules to do.
(3) The results demonstrated that K2PtCl4 was bound to a greater degree than CDDP in this system with 3-5 and 1-2 platinum atoms respectively, bound per transferrin molecule.
(4) Complementarity determining regions (CDR) are conserved to different extents, with the first CDR region in all family members being among the most conserved segments of the molecule.
(5) Even with hepatic lipase, phospholipid hydrolysis could not deplete VLDL and IDL of sufficient phospholipid molecules to account for the loss of surface phospholipid that accompanies triacylglycerol hydrolysis and decreasing core volume as LDL is formed (or for conversion of HDL2 to HDL3).
(6) However, the presence of these two molecules was restored if testosterone was supplemented immediately after orchiectomy.
(7) In the second approach, attachment sites of DTPA groups were directed away from the active region of the molecule by having fragment E1,2 bound in complex, with its active sites protected during the derivatization.
(8) PMNs could be primed for PMA-triggered oxidative burst by muramyl peptide molecules (MDP) and two of its adjuvant active nonpyrogenic derivatives.
(9) These same molecules may be equally responsible for the pathologic characteristics of the immune response seen, for example, in inflammatory bowel diseases.
(10) A cDNA library prepared from human placenta has been screened for sequences coding for factor XIIIa, the enzymatically active subunit of the factor XIII complex that stabilizes blood clots through crosslinking of fibrin molecules.
(11) T cell costimulation by molecules on the antigen presenting cell (APC) is required for optimal T cell proliferation.
(12) The lipid A moiety was shown to be responsible for this novel biological activity of the LPS molecule.
(13) Both systems indicated that the Kupffer cell modified endotoxin by enriching the lipid content of the molecule and shortening the length of the O-antigen.
(14) Photoreactions induced in that proper sensitizer molecules absorb UV-light or visible light.
(15) At 100 microM-ACh the apparent open time became shorter probably due to channel blockade by ACh molecules.
(16) Flow cytofluorometric analysis of the strain distribution of the molecules defined by the mAb revealed that two of the antibodies (I-22 and III-5) were directed against nonpolymorphic determinants of Thy-1, whereas V-8 mAb reacted only with Thy-1.2+ lymphocytes.
(17) At a fixed concentration of nucleotide the effectiveness of elution was proportional to the charge on the eluting molecule.
(18) The relative rates of reduction of several spin-labeled molecules that partition differently across the hy-drophobic-interface of inner membranes from rat liver mitochondria were investigated.
(19) The seve polypeptide chains investigated had generalyy similar properties; all contained two residues per molecule of tryptophan and N-acetylserine was the common N-terminal amino acid residue.
(20) Much information has accumulated on the isolation and characterization of a heterogeneous group of molecules that inhibit one or more of the bioactivities of interleukin 1.