(a.) Having a head like that of a bull. Fig.: Headstrong; obstinate; dogged.
Example Sentences:
(1) No brown bullheads of ages 6 or 7 were collected in the Black River, while these age groups composed 18% of the catch in Old Woman Creek.
(2) The endocrine pancreas of the bullhead catfish, Ictalurus nebulosus, and the channel catfish, I. punctatas was studied by light and electron microscopy.
(3) In bullhead hepatocytes, epinephrine induced a biphasic [Ca2+]i response, with an initial transient rise followed by a sustained component; this response was virtually abolished in the absence of extracellular Ca2+.
(4) Ultrastructural, functional, and cytochemical characteristics of resident sinusoidal macrophages (RSM) in brown bullhead (Ictalurus nebulosus) liver were examined.
(5) Control bullhead brains had higher concentrations of glycogen, ATP, creatine phosphate (CrP), and glucose than control trout.
(6) PaO2 and ventilation measurements in Salmo gairdnerii and Ictalurus melas (brown bullhead) were performed during progressive or step changes of PwO2.
(7) Fresh or ripened spores of M. cotti and M. cerebralis were not infectious for bullheads or rainbow trout, respectively.
(8) The cerebellar afferents in the bullhead catfish (Teleostei) were labeled by relying on the retrograde transport of horseradish peroxidase (HRP).
(9) Established cell lines from brown bullhead catfish (BB) and rainbow trout (RTG-2) and primary cultures of cells derived from gill, fin, and gonad tissues from brown bullhead catfish were evaluated for use as bioindicators in the neutral red cytotoxicity assay.
(10) Black bullheads were able to accumulate 60Co from water.
(11) Possible mechanisms for elimination of the superfluous axons observed in the white muscle of the developing brown bullhead are discussed.
(12) The in vitro metabolism of [3H]benzo[a]pyrene (BP) and [14C]benzo[a]pyrene-7,8-dihydrodiol (BP-7,8-diol) by liver of brown bullhead (Ictalurus nebulosus) was characterized, as was the formation and persistence of BP-DNA adducts in vivo.
(13) No conversion occurred in the control tissue with the temperature maintained at 12 degrees C. No qualitative difference in the incorporation of [(3)H]leucine into proinsulin and its conversion into insulin at 12 degrees and 22 degrees C could be demonstrated between islet tissue from fish acclimated to less than 12 degrees C or to 22 degrees C. The results suggest that the enzyme(s) responsible for converting proinsulin into insulin in the bullhead may be temperature sensitive with low activity at 12 degrees C.
(14) A 3-MC-type of cytochrome P-450 appears to be primarily responsible for the oxidation of B f Q by control brown bullhead liver microsomes, whereas a phenobarbital-inducible type of cytochrome P-450 seems to be involved in the metabolism of B f Q by control rat liver microsomes.
(15) n. is described from the warmouth, Lepomis gulosus (Cuvier); brown bullhead, Ictalurus nebulosus (Lesueur); yellow bullhead, I. natalis (Lesueur); redbreast sunfish, L. auritus (Linnaeus); bluegill, L. macrochirus Rafinesque; spotted sunfish, L. punctatus (Valenciennes); and redfin pickerel, Esox americanus (Gmelin), from the Alabama River Drainage, brown bullhead from the Mobile Bay Drainage in Alabama, and pirate perch, Aphredoderus sayanus Gilliams, from an Atlantic Coast drainage in Georgia.
(16) These age and length distributions are consistent with the hypothesis that brown bullheads in the Black River were subjected to an age-selective mortality associated with high prevalences of liver carcinoma.
(17) Using degeneration staining methods, central projections of the olfactory tracts in the bullhead catfish, Ictalurus nebulosus were studied.
(18) Liver microsomes from rats were considerably more active in metabolizing benzo[f]quinoline (B f Q) than those from brown bullheads (Ictalurus nebulosus).
(19) Insulin biosynthesis in the brown bullhead, Ictalurus nebulosus (Le Sueur), was studied by measuring the incorporation in vitro of [(3)H]leucine into proteins of the principal islet.
(20) The antiviral effect of acyclovir (ACV; 9-(2-hydroxyethoxymethyl)guanine) on the replication of channel catfish virus (CCV), a poikilothermic herpesvirus, in brown bullhead cells (BB) was studied in vitro.
Bullish
Definition:
(a.) Partaking of the nature of a bull, or a blunder.
Example Sentences:
(1) But now they have a bullish and vociferous spokesperson in Guatemala's president, Otto Pérez Molina.
(2) Bullish as ever, a press release reveals that the service should be available by 2015 – once the Federal Aviation Administration (FAA)'s rules on the safety of unmanned aerial vehicles are finalised.
(3) Despite his bullish defiance over the weekend following his re-election – blaming US investigators and the British media for trying to unseat him – Blatter cut a diminished figure following a day of speculation over the fate of his right-hand man Valcke.
(4) Uber chief executive Travis Kalanick has been bullish about his desire to automate the company’s cars and cut out the human element of the taxi service, which is its largest operating cost.
(5) She's been taking a bullish tone, declaring that they will "send a clear message to the market about the resilience of the financial system."
(6) But David Cameron, really from the off, understood that this was a question which would have to be answered.” Despite Salmond’s bullish confidence in public after his victory, he was far from confident in private.
(7) Gove and his team are more bullish, and Allen describes an unremittingly positive dossier of evidence that the coalition recently published as "deliberately selective".
(8) But if the referee doesn’t whistle for it, we can’t say anything about that.” Roberto Martínez offered a bullish take on the incident, seeming to suggest Sterling was hoping to deceive the referee into awarding the kick.
(9) Grainge was bullish that the enforced asset sale – which will include EMI operations in nine European countries and labels such as Chrysalis, Mute and Sanctuary, home to artists including Spandau Ballet, Depeche Mode and Iron Maiden respectively – will draw premium bids and that Universal will not lose out by offloading them.
(10) Others are even more bullish, predicting growth in the bio-based chemicals market from $78bn in 2012 to $198bn (pdf) by 2017, eventually accounting for 50% of the chemicals market by 2050.
(11) Moreover that bullishness irritated the Tottenham chairman, Daniel Levy.
(12) Despite the bullish mood from both chief executive and chairman, outside the conference centre some institutional investors were less than happy that the huge revolt has not been taken more seriously.
(13) In a note to investors, Bernstein's Todd Juenger was "bullish" about the near-term.
(14) Taylor Wimpey said it was fully sold for 2009 and was bullish on a recovery, albeit at a sluggish pace.
(15) Despite the downgrade, the Berlin government is still bullish – blaming the downgrade on the eurozone crisis and weakness in emerging markets.
(16) Had those bullish bankers overestimated the dividend-paying capabilities?
(17) CEO Henri Winand is bullish, saying “the hydrogen age has arrived” but it is not just automotive where the company is finding a home for hydrogen.
(18) It was with a mixture of wistfulness and his usual forthright bullishness that Sam Allardyce, briefly moving his attention away from the 21st-century football that West Ham United intend to confront Chelsea with on Friday afternoon, looked back eight years and contemplated what he might have achieved in his final season at Bolton Wanderers if he had received greater financial backing – or, to be precise, any financial backing – when his team were hovering around the Champions League places at Christmas.
(19) Chime is increasingly bullish about its prospects for the next few years, which are peppered with major sports events.
(20) Salmond appeared to be even more bullish about the prospect of a yes result by the time he reached Perth yesterday evening, predicting that there would be a "decisive yes vote" next week.