What's the difference between whereby and whereupon?

Whereby


Definition:

  • (adv.) By which; -- used relatively.
  • (adv.) By what; how; -- used interrogatively.

Example Sentences:

  • (1) 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.
  • (2) The method described uses film DOT-I and DOT-II by Dupont, whereby the exposure of the step wedge takes place on a linear accelerator with a photo energy of 10 MeV.
  • (3) The present data support the hypothesis whereby weakly oncogenic B-ecotropic viruses similar to those activated by radiation might be involved in the development of TL.
  • (4) Indications of precautions to be taken are defined and suggestions are drawn up whereby residual laxity in extension may be limited.
  • (5) Mechanisms are suggested whereby rudimentary appetitive programs already encoded along facing dendrite membrane pairs within the specialized intrafascicular milieu, may trigger and control nipple search and suckling in the still blind and only primitively mobile neonate.
  • (6) Because the mechanism whereby Shigella dysenteriae I enterotoxin induces intestinal secretion is unclear, the effect of this toxin on adenylate cyclase activity in rabbit ileal mucosa was studied under various in vitro and in vivo conditions.
  • (7) Completely unknown is the mechanism whereby NADH oxidation and growth or growth control may be coupled.
  • (8) Possible mechanisms whereby proteolytic cleavage of VP2 may enhance the infectivity and HA activity of BTV 20 are discussed.
  • (9) A simplified procedure is described whereby tissue is removed via a posterior eyelid approach so that the eyelid may be tightened both horizontally and vertically, thus inverting the punctum and fixating it in the lacrimal lake.
  • (10) The authors describe several recent court cases in which judges have ignored or distorted acceptable clinical practices, conceivably creating a new liability standard whereby a tragic outcome is considered the result of failure to apply appropriate judgment.
  • (11) Since the temperature of the monkey was unchanged as long as the physiological ratio of sodium to calcium in the perfusion fluid remained constant, we conclude that the balance between these two essential cations within the brain stem could determine the neural mechanism whereby the set-point for body temperature of the primate is established.
  • (12) Physical disruption of the gut mucosal barrier appears to be the primary mechanism whereby endotoxin promotes bacterial translocation.
  • (13) That does not translate magically into a conflict of interest whereby the interests of these lawyers is suddenly contrary to those of the defendants,” Ryan argued to Pohl.
  • (14) Our aim was to determine the mechanism whereby oligohydroamnios causes reduced fetal lung expansion and eventual lung hypoplasia.
  • (15) This requires multiple insulin injections, whereby 60 to 70% of the total daily insulin amount are administered as preprandial boli of short or intermediate acting insulin.
  • (16) That would mark a controversial break from its existing policy, whereby the ECB offsets bond purchases by draining liquidity from the system in separate operations.
  • (17) Chilcot has now embarked on the “Maxwellisation process”, whereby those the inquiry intends to criticise will be sent draft passages of the report for comment.
  • (18) The mechanism whereby deferoxamine (DF) inhibits the growth of malaria parasites was studied in rats infected with Plasmodium berghei.
  • (19) K+ release from 2-10 min minus initial K+ uptake) increased from 0.1 to 2.2 mumol X g-1 liver, whereby simultaneously the alanine tissue level rose from 6.8 to 13.3 mumol X g-1 (corresponding to an increase of the intracellular alanine concentration from about 12 to 25 mM) in presence of aminooxyacetate.
  • (20) Ultrastructural investigations involved a novel method whereby thick sections of gluteraldehyde-fixed material were cut on a vibratome and then labelled using slight modifications of a standard unlabelled antibody-enzyme (PAP) technique, before further processing.

Whereupon


Definition:

  • (adv.) Upon which; in consequence of which; after which.

Example Sentences:

  • (1) The animals were killed after an abstinence of 4 weeks, whereupon the concentrations of noradrenaline (NA), dopamine (DA), serotonin (5-HT) and 5-hydroxyindole acetic acid (5-HIAA) were determined in the frontal cortex.
  • (2) Whereupon Madonna's PR guy Trevor Neilson (who doesn't seem to be too great at his job judging by the way in which a routine baby-hugging photo-op has descended into a hilarious international shitshow) hit back, giving quotes to The Globe and Mail reporter Geoffrey York.
  • (3) The hormone-receptor complexes are then translocated to the nucleus, in an "activated" form, whereupon they are bound to the target cell genome.
  • (4) Thresholds for the response are near 0.05 mA and the stimulus intensity curve is linear to 0.4 mA whereupon the pressure rise and tachycardia begin to approach a plateau value.
  • (5) In three patients, carbamazepine was withdrawn, whereupon the deposits disappeared in two and decreased in the third, who changed to another drug.
  • (6) The first of them came after 90 seconds, when, taking a free kick from the edge of the penalty box, his feint drew Johnston aside in the wall, whereupon Hidegkuti shot through the gap, to beat Gil Merrick, an erratic keeper that day.
  • (7) After observing a couple of weeks of bickering over who would get what time, we threatened to remove them again, whereupon the boys negotiated with each other and came up with an equitable time-sharing agreement.
  • (8) The scheme is as follows; phosphatidylcholine associated with high density lipoproteins exchanges with the erythrocyte membrane phospholipids, the neutral phospholipids undergo two dimensional translational and rotational motion and also flip between each layer of the bilayer thus becoming exposed to an intracellularly-located phospholipase-D, whereupon the choline is hydrolysed and released into the intracellular milieu.
  • (9) Nitrogen balances were not significantly different unless analysis of covariance was used to adjust for the nitrogen intakes, whereupon all treatment groups showed improved balance, especially the animals treated with the low IGF-I dose and des(1-3)IGF-I (both P less than 0.01).
  • (10) The ether phospholipid platelet-activating factor (PAF) has been generally assumed to be released into the extracellular environment by the cells of origin, whereupon it effects its well-known mediator functions.
  • (11) Whereupon Gore uttered the immortal phrase: "But what about the Dingle-Norwood bill?"
  • (12) Severe leucopenia was observed in 2 patients, whereupon therapy was definitely withdrawn.
  • (13) Whereupon Gove went back into his customary role of baiting Hunt for making up Labour's education policy on the hoof.
  • (14) We report a case of a 20-year-ol women whose pineal region tumour was irradiated, whereupon a unilateral low-frequency resting and intention tremor developed.
  • (15) In the disk, the region proximal to the RNA binding site is in a random coil until the RNA binds, whereupon the 24 residues involved build a well-defined structure, thereby encapsulating the RNA.
  • (16) The latter increased again rapidly to rates above normal until antigen expression reached normal level, whereupon the protein synthesis rate decreased to normal.
  • (17) The temperature of dispersions caused no increase in CF release until the gel-to-liquid crystalline transition temperature was exceeded (54.6 degrees C), whereupon a 20% increase in leakage was observed after 80 min of nebulization.
  • (18) The key step in the preparation of 15 was the epoxide-ring opening of methyl 2,3-anhydro-4-O-benzyl-6-deoxy-alpha-L-gulopyranoside with KHF2 in ethylene glycol, whereupon 2-fluoro-alpha-L-idopyranoside was obtained.
  • (19) It is concluded that inhibition of thrombin adsorbed on the heparin surface occurs as follows: Added AT adheres to high affinity heparin fragments on the surface whereupon adsorbed thrombin migrates in the hydrophilic heparin coating towards the reaction site of AT and becomes inhibited.
  • (20) They made the second round for the first time in 2002, whereupon a combined South Korea & Matchday Officials outfit breezed past Italy and Spain to make the semis.