What's the difference between addition and superfetation?
Addition
Definition:
(n.) The act of adding two or more things together; -- opposed to subtraction or diminution.
(n.) Anything added; increase; augmentation; as, a piazza is an addition to a building.
(n.) That part of arithmetic which treats of adding numbers.
(n.) A dot at the right side of a note as an indication that its sound is to be lengthened one half.
(n.) A title annexed to a man's name, to identify him more precisely; as, John Doe, Esq.; Richard Roe, Gent.; Robert Dale, Mason; Thomas Way, of New York; a mark of distinction; a title.
(n.) Something added to a coat of arms, as a mark of honor; -- opposed to abatement.
Example Sentences:
(1) Synthesis of choline esterase on the medium with acetylcholine at a concentration of 1% was increased more than twofold upon addition of glucose at a concentration of 0.1%.
(2) Apparently, the irradiation with visible light of a low intensity creates an additional proton gradient and thus stimulates a new replication and division cycle in the population of cells whose membranes do not have delta pH necessary for the initiation of these processes.
(3) In addition, this pretreatment protocol did not modify the recipient immune response against B-lymphocyte alloantigens which developed in unsuccessful transplants.
(4) In addition, intravenous injection of complexes into rabbits showed optimal myocardial images with agents of intermediate lipophilicity.
(5) The pattern of the stressor that causes a change in the pitch can be often identified only tentatively, if there is no additional information.
(6) In addition, DDT blocked succinate dehydrogenase and the cytochrome b-c span of the electron transport chain, which also secondarily reduced ATP synthesis.
(7) Addition of phospholipase A2 from Vipera russelli venom led to a significant increase in the activity of guanylate cyclase in various rat organs.
(8) As the percentage of rabbit feed is very small compared to the bulk of animal feeds, there is a fair chance that rabbit feed will be contaminated with constituents (additives) of batches previously prepared for other animals.
(9) Insensitive variants die more slowly than wild type cells, with 10-20% cell death observed within 24 h after addition of dexamethasone.
(10) 5-Azacytidine (I) stability was increased approximately 10-fold over its stability in water or lactated Ringer injection by the addition of excess sodium bisulfite and the maintenance of pH approximately 2.5.
(11) In addition to oncogenes, the transferred DNA contains genes that direct the synthesis and exudation of opines, which are used as nutrients by the bacteria.
(12) We sought additional evidence for an inverse relationship between functional CTL-target cell affinity on the one hand, and susceptibility of the CTL-mediated killing to inhibition by alpha LFA-1 and alpha Lyt-2,3 monoclonal antibodies on the other hand.
(13) These studies, in addition to demonstrating that the placenta contains TRH deamidase activity, suggest that losses of fetal TRH through the placenta are not large.
(14) In addition autoradiography was performed to localize labelled cells in the inner ear.
(15) of PLA2 caused marked degranulation of mast cells in the rat mesentery which was facilitated by addition of calcium ion (10 mM) but antagonized by pretreating with three antiinflammatory agents.
(16) M NET is currently installed in referring physician office sites across the state, with additional physician sites identified and program enhancements under development.
(17) Here we show that this induction of AP-2 mRNA is at the level of transcription and is transient, reaching a peak 48-72 hr after the addition of RA and declining thereafter, even in the continuous presence of RA.
(18) In addition to their involvement in thrombosis, activated platelets release growth factors, most notably a platelet-derived growth factor (PDGF) which may be the principal mediator of smooth muscle cell migration from the media into the intima and of smooth muscle cell proliferation in the intima as well as of vasoconstriction.
(19) Subtypes of HBs Ag are already of great use in the epidemiology of hepatitis B virus infections; yet they may have additional significance.
(20) When subjects centered themselves actively, or additionally, contracted trunk flexor or extensor muscles to predetermined levels of activity, no increase in trunk positioning accuracy was found.
Superfetation
Definition:
(n.) The formation of a fetus at the result of an impregnation occurring after another impregnation but before the birth of the offspring produced by it. This is possible only when there is a double uterus, or where menstruation persists up to the time of the second impregnation.
Example Sentences:
(1) Combined pregnancies rarely occur without treatment with ovulation inducing agents by superfecundation and superfetation.
(2) Suspected superfetation was investigated in a Glasgow hybrid stock of mice.
(3) Intervals between successive deliveries that are shorter than the normal duration of gestation do not necessarily indicate superfetation and this phenomenon may be rare among hares in captivity as well as in the wild.
(4) A frequent explanation was that twins were the result of superfetation, a divine impregnation occurring along with that by the lawful husband.
(5) Those phases reviewed include ovulation, fertilization and tubal passage of sperm and fertilized ova, capacitation of spermatozoa, the spacing of ova along the uterus, preimplantation stages of the uterus and uterus-blastocyst interaction, decidualization, the zona pellucida, normal and delayed nidation, superfetation, and the parthogenetic activation of eggs.
(6) This observation reports a case of human superfetation.
(7) The possibility of inducing superfetation in hares by artificial insemination (AI) was investigated.
(8) Ovulation during pregnancy is hypothesized to be the cause of superfetation found in mares.
(9) The second gestation was of normal length and superfetation was not therefore considered to be the cause of the anomalous litters.
(10) In humans, superfetation has been recorded secondary to ovulation induced by clomiphene citrate.
(11) This case report should support earlier evidence that superfetation in the bovine can and does occur.