What's the difference between bottleneck and constriction?

Bottleneck


Definition:

Example Sentences:

  • (1) Getting them to safety is now vital.” While the EU’s hotspots approach improved the fingerprinting and security vetting of migrants, the auditors said that funding and relocation “bottlenecks” had extended the detention of migrants, with disastrous consequences for children.
  • (2) On the basis of this study the area of the right coronary ostium appears to be a bottleneck with regard to an adequate blood supply to a hypertrophic myocardium.
  • (3) We therefore postulate the presence of an as yet undefined Golgi or post-Golgi bottleneck representing a major obstacle in secretion of recombinant IGFI from S. cerevisiae cells.
  • (4) These results suggest that the use of spatial anatomic knowledge, when combined with good interactive tools, can help to alleviate the segmentation bottleneck in medical imaging.
  • (5) Muller's ratchet could have significant implications for variability of disease severity during virus outbreaks, since genetic bottlenecks must often occur during respiratory droplet transmissions and during spread of low-yield RNA viruses from one body site to another (as with human immunodeficiency virus).
  • (6) For the most part, their journeys pass unseen, until they hit a barrier – the English Channel; the lines of police at Ventimiglia on the Italy-France border; the forests of Macedonia – that creates a bottleneck and leads to scenes of destitution and chaos.
  • (7) The data are consistent with the fine-grained niche theory but difficult to reconcile with bottlenecks and genetic drift.
  • (8) Bottlenecks in service utilization were distance from PHC, and caste, education and income.
  • (9) To promote resilience, job creation and mitigate risks for development, we will prioritize action under the Seoul Consensus on addressing critical bottlenecks, including infrastructure deficits, food market volatility, and exclusion from financial services.
  • (10) Read more pieces like this: The great salty mess: pollution threatens US fresh water resources Climate change may ‘bottleneck’ the Panama Canal and disrupt world trade Advertisement Feature : The water, energy and food nexus - animation The water hub is funded by SABMiller.
  • (11) Experimental bottleneck lines were generated from a single outbred population of the housefly using one, four, or 16 pairs of flies.
  • (12) Indonesia is like a kind of bottleneck and asylum seekers there are trapped in limbo.
  • (13) The bottleneck of refugees in Greece escalated on Sunday as regional officials spoke of a humanitarian crisison the state’s northern border, where 14,000 men, women and children were estimated to be trapped as a result of Macedonia sealing the frontier.
  • (14) The new line would help unlock a bottleneck on the current rail network and a Crewe hub would bring HS2's benefits to places such as Liverpool and North Wales up to six years earlier than originally envisaged.
  • (15) Europe's migrant crisis will not slow and EU nations must share duties, says UN Read more Many of these migrants had spent several days in a bottleneck on the Greek-Macedonian border last week, when the latter country declared a state of emergency for several days before lifting the declaration on Sunday.
  • (16) Videodisc based expert systems help break the bottleneck in relevant medical knowledge representation.
  • (17) The bottleneck theory would propose that qO2 has a constant (maximum) value under these conditions.
  • (18) This restricted flux is also referred to as the respiratory bottleneck.
  • (19) No unique alleles and low heterozygosities were detected in Memphis, Evansville and Jacksonville suggesting that a population bottleneck may have accompanied the founding of these populations.
  • (20) There’s a lot of tension.” As well as a bottleneck on the islands, there is also a buildup of stranded migrants at Greece’s northern borders.

Constriction


Definition:

  • (n.) The act of constricting by means of some inherent power or by movement or change in the thing itself, as distinguished from compression.
  • (n.) The state of being constricted; the point where a thing is constricted; a narrowing or binding.

Example Sentences:

  • (1) There were two recurrent P. (1 Tbc, 1 viral) and no recurrent constriction.
  • (2) L660,711 had no significant effects on epinephrine- or vasopressin-induced arteriolar constriction.
  • (3) Myogenic constrictions and dilations was observed when IP was increased (greater than 60 cmH2O) and decreased (less than 60 cmH2O), respectively.
  • (4) Baroreflex function was studied in conscious early phase (less than 6 weeks) two-kidney, one-clip hypertensive rats before and 24 hours after surgical reversal of hypertension by removal of the constricting renal artery clip or after pharmacological reduction of blood pressure by an infusion of hydralazine or captopril.
  • (5) A series of hierarchical multiple regressions revealed the effects of Surgency, Agreeableness, Conscientiousness, Emotional Stability, and Intellect on evoking upset in spouses through condescension (e.g., treating spouse as stupid or inferior), possessiveness (demanding too much time and attention), abuse (slapping spouse), unfaithfulness (having sex with others), inconsiderateness (leaving toilet seat up), moodiness (crying a lot), alcohol abuse (drinking too much alcohol), emotional constriction (hiding emotions to act tough), and self-centeredness (acting selfishly).
  • (6) Neither the first- (A1) or second-order arterioles (A2) nor the first- (V1) or second-order venules (V2) constricted significantly to angiotensin II.
  • (7) When the same dose of ISO was administered to rats with aortic constriction the rise in labelled Ca uptake by the hypertrophied myocardium of the left ventricle was greatly reduced.
  • (8) We studied DNA (mtDNA) replication in adult female rat hearts undergoing hypertrophy secondary to constriction of the ascending aorta.
  • (9) 6 patients had thickened pericardium, and 3 had constrictive features.
  • (10) Clonidine and methysergide constrict the rabbit auricular artery by activating smooth muscle alpha-adrenoceptors.
  • (11) Electron microscopy in one case demonstrated typical intraneuronal accumulations of neurofilaments with regular constrictions.
  • (12) The rise in pressure approximated the sum of the rises caused by removal of the papilla alone and by renal artery constriction alone, consistent with the idea of two mechanisms being at work in this model.
  • (13) Transient peripheral vasomotor constriction and heart rate increases were initiated within an 8- to 12-sec period following target detection with the predictable schedule, with subjects evincing greater responsivity than their nonpredictable schedule counterparts.
  • (14) Data are constricted by the movement out of the area in the end stage of disease, which is only partially solved by tracking with community health workers.
  • (15) The in vivo synthesis rates of myosin isozyme heavy chains beta and alpha were measured in right ventricular (RV) muscle at 2 and 4 days following pulmonary artery constriction in rabbits, together with measurements of their relative mRNA levels.
  • (16) Aspiration is prevented by constriction of the thyroarytenoid muscle which provides a valved upper end of the tube.
  • (17) When tested in the guinea pig, 2a exhibited no effects on blood pressure and no broncho-constriction or dilation activity.
  • (18) However, certain other echocardiographic abnormalities of left ventricular posterior wall motion and interventricular septal motion and a high E-Fo slope were suggestive of constriction.
  • (19) The left anterior descending coronary artery of dogs and the right common carotid artery of rabbits were subjected to partial constriction with suture thread (40-60% reduction in transluminal diameter).
  • (20) A previously described laminectomy technique was modified by the addition of spinal plating to avoid the occurrence of constrictive fibrosis.