What's the difference between formation and twinning?

Formation


Definition:

  • (n.) The act of giving form or shape to anything; a forming; a shaping.
  • (n.) The manner in which a thing is formed; structure; construction; conformation; form; as, the peculiar formation of the heart.
  • (n.) A substance formed or deposited.
  • (n.) Mineral deposits and rock masses designated with reference to their origin; as, the siliceous formation about geysers; alluvial formations; marine formations.
  • (n.) A group of beds of the same age or period; as, the Eocene formation.
  • (n.) The arrangement of a body of troops, as in a square, column, etc.

Example Sentences:

  • (1) Since fingernail creatinine (Ncr) reflects serum creatinine (Scr) at the time of nail formation, it has been suggested that Ncr level might represent that of Scr around 4 months previously.
  • (2) The influence of the various concepts for the induction of lateral structure formation in lipid membranes on integral functional units like ionophores is demonstrated by analysing the single channel current fluctuations of gramicidin in bimolecular lipid membranes.
  • (3) Because cystine in medium was converted rapidly to cysteine and cysteinyl-NAC in the presence of NAC and given that cysteine has a higher affinity for uptake by EC than cystine, we conclude that the enhanced uptake of radioactivity was in the form of cysteine and at least part of the stimulatory effect of NAC on EC glutathione was due to a formation of cysteine by a mixed disulfide reaction of NAC with cystine similar to that previously reported for Chinese hamster ovarian cells (R. D. Issels et al.
  • (4) The second amino acid residue influences not only the rate of reaction but also the extent of formation of the product of the Amadori rearrangement, the ketoamine.
  • (5) The purpose of these studies was to better understand the molecular basis of chromosome aberration formation after mitomycin C treatment.
  • (6) Together these observations suggest that cytotactin is an endogenous cell surface modulatory protein and provide a possible mechanism whereby cytotactin may contribute to pattern formation during development, regeneration, tumorigenesis, and wound healing.
  • (7) Past imaging techniques shown in the courtroom have made the conventional rules of evidence more difficult because of the different informational content and format required for presentation of these data.
  • (8) Electron spin resonance studies indicate the formation of two vanadyl complexes that are 1:1 in vanadyl and deferoxamine, but have two or three bound hydroxamate groups.
  • (9) When the eye was dissected into anterior uveal, scleral, and retinal complexes, prostaglandin D2 was formed in the highest degree in all the complexes, whereas prostaglandin E2 and F2 alpha formation was specific to given ocular regions.
  • (10) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
  • (11) The disassembly of the synthetase complex is consistent with the structural model of a heterotypic multienzyme complex and suggests that the complex formation is due to the specific intermolecular interactions among the synthetases.
  • (12) Chloroquine induced large cytoplasmic vacuoles, whereas the other drugs (quinacrine, 4,4'-diethylaminoethoxyhexestrol, chlorphentermine, iprindole, 1-chloro-amitriptyline, clomipramine) caused formation of lamellated or crystalloid inclusions as usually seen in drug-induced lipidosis.
  • (13) Immunohistochemical observation of myoepithelial cells with monoclonal antibody from human mammalian cancer suggested that these cells play an important role in the process of glandular ducts formation.
  • (14) This value is about 30 times higher than the association constant for guanine-cytosine base pair formation under the same experimental conditions.
  • (15) Anti-human factor V IgG decreased this enhanced thrombin formation in the presence of platelets, indicating that factor V from platelets was playing an important role in thrombin formation.
  • (16) Aside from these characteristic findings of HCC, it was important to reveal the following features for the diagnosis of well differentiated type of small HCC: variable thickening or distortion of trabecular structure in association with nuclear crowding, acinar formation, selective cytoplasmic accumulation of Mallory bodies, nuclear abnormalities consisting of thickening of nucleolus, hepatic cords in close contact with bile ducts or blood vessels, and hepatocytes growing in a fibrous environment.
  • (17) Natural tubulin polymerization leads to the formation of hooks on microtubular structures.
  • (18) The reducing equivalents could be donated by formate or NADH through some segment of the membrane respiratory chain.
  • (19) This method, which permits a more rapid formation of anastomoses, has been used to form Roux-en-Y jejunojejunostomies without extensive complications in six patients.
  • (20) It was concluded that the spheno-occipital complex has a close relationship to the skeletal facial pattern and contributes to the facial formation.

Twinning


Definition:

  • (p. pr. & vb. n.) of Twin
  • (n.) The assemblage of two or more crystals, or parts of crystals, in reversed position with reference to each other in accordance with some definite law; also, rarely, in artificial twinning (accomplished for example by pressure), the process by which this reversal is brought about.

Example Sentences:

  • (1) All the twins were born in years 1973-1987, the total number was 2,226 boys and 2,302 girls.
  • (2) Plasma renin activity (PRA) and aldosterone concentration were measured before and during submaximal exercise in 10 male monozygotic twin pairs who were discordant for smoking.
  • (3) Symmetrical cases (the so-called siamese twins) have an obvious predominance (92.3%).
  • (4) From the 32nd week on, the twins' mean weekly BPD increment decreased, this lesser growth rate being more marked than that of singletons.
  • (5) In the UK the twin threat of Ukip and the BNP tap into similar veins of discontent as their counterparts across the English channel.
  • (6) There it was found she was not carrying twins but her baby remained in hospital for some weeks with respiratory problems.
  • (7) Therefore, we conclude that monochorionic twins can be considered monozygotic.
  • (8) A planet with conditions that could support life orbits a twin neighbour of the sun visible to the naked eye, scientists have revealed.
  • (9) Presented is the case of a triplet pregnancy with conjoined twins diagnosed antenatally with sonography.
  • (10) This was either giant teratoma of placenta or malformed twin foetus.
  • (11) Blood samples were obtained from 18 twin pairs, and the major prostaglandin E2 (PGE2) plasma metabolite 15-keto-13,14-dihydro-PGE2 was measured by RIA after its conversion to 11-deoxy-15-keto-13,14-dihydro-11 beta,16 xi-cyclo-PGE2.
  • (12) Given his background, Boyle says, growing up in a council house near Bury, with his two sisters (one a twin) and his strict and hard-working parents (his mum worked as a dinner lady at his school), he should by rights have been a gritty social realist, but that tradition never appealed to him.
  • (13) The affected twin had classical loss of sc fat from her face, upper arms, and trunk as well as associated hypocomplementemia, microscopic hematuria, and a borderline oral glucose tolerance test without hyperinsulinism.
  • (14) Neuropsychological testing of the affected twin demonstrated marked deficits in all areas of cognitive function.
  • (15) Therefore, this study evaluates the validity of zygosity diagnosis based on examination of placental membranes, and at the same time evaluates Weinberg's differential rule in a Danish consecutive twin series.
  • (16) Having already seen off the Winklevoss twins who claimed he stole the idea for Facebook from them , Zuckerberg now faces a convicted fraudster who says he has a contract giving him 84% of the social network.
  • (17) These adjusted correlation coefficients in MZ twins are 0.5 for both K1 and K5 blood pressure.
  • (18) Significant intraclass coefficients were observed in MZ twins for the different expressions of RMR.
  • (19) However, after the exclusion of cases with congenital abnormality association of low birth weight newborn infants and with genital anomalies of the male, the twin birth rate was 1.8 per cent.
  • (20) The size of right and left middle phalanges in the II-V fingers and the III finger have been studied in 108 pairs of monozygotic and dizygotic twins at 8--19 years of age and in 60 paris (pedagogical experiment) of separated twins (from the same pair), schoolchildren of the 2d--5th forms trained according different programs of physical culture.