What's the difference between stem and stern?

Stem


Definition:

  • (v. i.) Alt. of Steem
  • (n.) Alt. of Steem
  • (n.) The principal body of a tree, shrub, or plant, of any kind; the main stock; the part which supports the branches or the head or top.
  • (n.) A little branch which connects a fruit, flower, or leaf with a main branch; a peduncle, pedicel, or petiole; as, the stem of an apple or a cherry.
  • (n.) The stock of a family; a race or generation of progenitors.
  • (n.) A branch of a family.
  • (n.) A curved piece of timber to which the two sides of a ship are united at the fore end. The lower end of it is scarfed to the keel, and the bowsprit rests upon its upper end. Hence, the forward part of a vessel; the bow.
  • (n.) Fig.: An advanced or leading position; the lookout.
  • (n.) Anything resembling a stem or stalk; as, the stem of a tobacco pipe; the stem of a watch case, or that part to which the ring, by which it is suspended, is attached.
  • (n.) That part of a plant which bears leaves, or rudiments of leaves, whether rising above ground or wholly subterranean.
  • (n.) The entire central axis of a feather.
  • (n.) The basal portion of the body of one of the Pennatulacea, or of a gorgonian.
  • (n.) The short perpendicular line added to the body of a note; the tail of a crotchet, quaver, semiquaver, etc.
  • (n.) The part of an inflected word which remains unchanged (except by euphonic variations) throughout a given inflection; theme; base.
  • (v. t.) To remove the stem or stems from; as, to stem cherries; to remove the stem and its appendages (ribs and veins) from; as, to stem tobacco leaves.
  • (v. t.) To ram, as clay, into a blasting hole.
  • (v. t.) To oppose or cut with, or as with, the stem of a vessel; to resist, or make progress against; to stop or check the flow of, as a current.
  • (v. i.) To move forward against an obstacle, as a vessel against a current.

Example Sentences:

  • (1) However, CT will be insensitive in the detection of the more cephalic proximal lesions, especially those in the brain stem, basal cisterns, and skull base.
  • (2) Based on our results, we propose the following hypotheses for the neurochemical mechanisms of motion sickness: (1) the histaminergic neuron system is involved in the signs and symptoms of motion sickness, including vomiting; (2) the acetylcholinergic neuron system is involved in the processes of habituation to motion sickness, including neural store mechanisms; and (3) the catecholaminergic neuron system in the brain stem is not related to the development of motion sickness.
  • (3) The examination of the standard waves' amplitude and latency of the brain stem auditory evoked response (BAEP) was performed in 20 guinea pigs (males and females, weighing 250 to 300 g).
  • (4) A previous trial into the safety and feasibility of using bone marrow stem cells to treat MS, led by Neil Scolding, a clinical neuroscientist at Bristol University, was deemed a success last year.
  • (5) Proliferation of quiescent hematopoietic stem cells, purified by cell sorting and evaluated by spleen colony assay (CFU-S), was investigated by measuring the total cell number and CFU-S content and the DNA histogram at 20 and 48 hours of liquid culture.
  • (6) The last stems from trends such as declining birth rate, an increasingly mobile society, diminished importance of the nuclear family, and the diminishing attractiveness of professions involved with providing maintenance care.
  • (7) Following BHT administration, the alveolar stem cells (type II pneumocytes) proliferate and differentiate according to a biphasic pattern, with proliferative peaks at d 3 and 7.
  • (8) In testing the contribution of the long, curved stem to the torsional stability of uncemented prostheses by comparing it with other stems, the long, curved stem was the most stable, followed by a shorter straight stem, and a short, proximally curved stem.
  • (9) For example, stem pairing with a sequence other than wild-type resulted in normal protein binding in vitro but derepression of protein synthesis in vivo.
  • (10) These results indicate that this population (approximately 0.1% of bone marrow) may contain the pluripotent hematopoietic stem cell.
  • (11) Brain-stem CBF varied the most but did not correlate with clinical signs of brain-stem dysfunction.
  • (12) We infer from these results that endotoxin ameliorates the cyclical changes in blood cell counts by regulating hematopoietic proliferative activity at the stem cell level.
  • (13) The effects of inhibitors of aldehyde dehydrogenase activity on the sensitivity of murine pluripotent hematopoietic stem cells to oxazaphosphorine anticancer agents, e.g.
  • (14) Three strains of fluorescent pseudomonads (IS-1, IS-2, and IS-3) isolated from potato underground stems with roots showed in vitro antibiosis against 30 strains of the ring rot bacterium Clavibacter michiganensis subsp.
  • (15) This has stemmed from an inadequate understanding of the mechanisms involved in the formation and propagation of this condition.
  • (16) We therefore think that the detailed examination of CALLA(-) non-T non-B ALL cells using myeloid specific antibodies is helpful in clarifying the characteristics of myeloid precursors and the common bipotential stem cell of lymphoid and myeloid progenitors.
  • (17) Imaging studies had shown no change in his brain stem lesion, which at autopsy was found to be a focal collection of fibrillary astrocytes.
  • (18) These cells were hypothesized to be the stem cells for the corneal epithelium.
  • (19) Auditory brain stem potentials (ABP) were recorded in 27 patients with Bell's palsy during the early phase of the disease and 1-3 months later.
  • (20) The results indicate that stimulation of trigeminal subnucleus caudalis, a brain stem region that processes nociceptor afferent information, evokes a prompt increase in plasma ACTH.

Stern


Definition:

  • (n.) The black tern.
  • (superl.) Having a certain hardness or severity of nature, manner, or aspect; hard; severe; rigid; rigorous; austere; fixed; unchanging; unrelenting; hence, serious; resolute; harsh; as, a sternresolve; a stern necessity; a stern heart; a stern gaze; a stern decree.
  • (v. t.) The helm or tiller of a vessel or boat; also, the rudder.
  • (v. t.) The after or rear end of a ship or other vessel, or of a boat; the part opposite to the stem, or prow.
  • (v. t.) Fig.: The post of management or direction.
  • (v. t.) The hinder part of anything.
  • (v. t.) The tail of an animal; -- now used only of the tail of a dog.
  • (a.) Being in the stern, or being astern; as, the stern davits.

Example Sentences:

  • (1) Tap the relevant details into Google, though, and the real names soon appear before your eyes: the boss in question, stern and yet oddly quixotic, is Phyllis Westberg of Harold Ober Associates.
  • (2) Biomass and crops for animals are as damaging as [burning] fossil fuels.” The recommendation follows advice last year that a vegetarian diet was better for the planet from Lord Nicholas Stern , former adviser to the Labour government on the economics of climate change.
  • (3) Quenching of intrinsic fluorescence of (Ca2+-Mg2+)-ATPase by acrylamide, performed in the presence of Ca2+, gave evidence for a single class of tryptophan residues with Stern-Volmer constant (KSV) of 10 M-1.
  • (4) The death of your battery is now one of the factors that will push you to upgrade.” As Joanna Stern put it in her review of the iPhone 6s in the Wall Street Journal: “The No 1 thing people want in a smartphone is better battery life.
  • (5) Before we meet, I have to have a stern talk with myself about not mentioning the game last August in which all Arsenal fans will contend that Barton got new signing Gervinho sent off on his debut; he's had similarly abrasive encounters since with fellow midfielders, Karl Henry from Wolves and Norwich's Bradley Johnson, the latter earning him a three-match ban.
  • (6) Heshel Melamed, a stern rabbinical paterfamilias, was his maternal grandfather.
  • (7) Professor Lord Stern of the London School of Economics, the author of the influential Stern Report into the economics of climate change for the Treasury in 2006, warned that if the pattern continued, the results would be dire.
  • (8) The influential economist, Lord Nicholas Stern, welcomed the proposal as "strong and reasonable" and "with the interests of developing countries at its heart".
  • (9) Tryptophanyl fluorescence of the lipoprotein assembly was quenched as indicated by a reduction in the effective Stern-Volmer constant.
  • (10) "There's funding that was agreed to as part of the Copenhagen accord, and as a general matter, the US is going to use its funds to go to countries that have indicated an interest to be part of the accord," the state department envoy, Todd Stern, told the Washington Post.
  • (11) 3.43am BST Spurs 57-56 Heat - 6:15 remaining, 3rd quarter And some thoughts via email from Daniel Vazquez-Paluch: I can't help wondering if LeBron is a victim of Stern's rule changes more than his own tendency to disappear.
  • (12) It "failed to recognise the significance" of damage to a gas fracking well in 2011 and did not report it to government officials for six months, leading to a stern reprimand by the energy minister, papers released under the Freedom of Information Act show.
  • (13) Treatment with chymotrypsin to block the E1 to E2 transition results in a new set of quenching parameters which are unchanged with Na or K. Even after detergent denaturation (1% sodium dodecyl sulfate for 30 min), Stern-Volmer plots are nonlinear, and a significant fraction of tryptophan residues remain inaccessible to quencher.
  • (14) (At the time, he told shockjock Howard Stern on the record that he approved of it.)
  • (15) The local undertakers were pleased to discover the great Henty to be the man they had always imagined - a full-bearded giant, stern and wise, dressed like a warrior hero or - much the same thing - a Victorian gentleman with the whiff of gunpowder and the clash of sabres about him.
  • (16) At low quencher concentrations, the quenching follows the classical Stern-Volmer law.
  • (17) A couple of times I’ve raised my voice, been stern and they’ve responded.
  • (18) Quenching of pyrene fluorescence emission of labeled ATPase by acrylamide and cesium chloride gave linear Stern-Volmer plots.
  • (19) In a wide-ranging news conference at the end of the G7 summit in the Wetterstein Mountains in Germany, Obama issued a stern warning against Russia, accepted praise for the work of US prosecutors at confronting corruption in world soccer, gave the US supreme court advice on how to rule in an upcoming healthcare case and defended his immigration policies.
  • (20) Orthodontic treatment in those days, like life in general, was simple and stern.