What's the difference between complex and hard?

Complex


Definition:

  • (n.) Composed of two or more parts; composite; not simple; as, a complex being; a complex idea.
  • (n.) Involving many parts; complicated; intricate.
  • (n.) Assemblage of related things; collection; complication.

Example Sentences:

  • (1) All mutant proteins could associate with troponin I and troponin T to form a troponin complex.
  • (2) Cellulase regulation appears to depend upon a complex relationship involving catabolite repression, inhibition, and induction.
  • (3) In addition, intravenous injection of complexes into rabbits showed optimal myocardial images with agents of intermediate lipophilicity.
  • (4) The various evocational changes appear to form sets of interconnected systems and this complex network seems to embody some plasticity since it has been possible to suppress experimentally some of the most universal evocational events or alter their temporal order without impairing evocation itself.
  • (5) The half-life of 45Ca in the various calcium fractions of both types of bone was 72 hours in both the control and malnourished groups except the calcium complex portion of the long bone of the control group, which was about 100 hours.
  • (6) Lp(a) also complexes to plasmin-fibrinogen digests, and binding increases in proportion to the time of plasmin-induced fibrinogen degradation.
  • (7) It has recently been suggested that procaine penicillin existed in solution in vitro and in vivo as a "procaine - penicillin" complex rather than as dissociated ions.
  • (8) It involves creativity, understanding of art form and the ability to improvise in the highly complex environment of a care setting.” David Cameron has boosted dementia awareness but more needs to be done Read more She warns: “To effect a cultural change in dementia care requires a change of thinking … this approach is complex and intricate, and can change cultural attitudes by regarding the arts as central to everyday life of the care home.” Another participant, Mary*, a former teacher who had been bedridden for a year, read plays with the reminiscence arts practitioner.
  • (9) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
  • (10) The peak molecular weight never reached that of a complete 2:1 complex.
  • (11) Similar to intact crayfish, animals with an isolated protocerebrum-eyestalk complex, exhibit competent circadian rhythms in the electroretinogram (ERG).
  • (12) In the second approach, attachment sites of DTPA groups were directed away from the active region of the molecule by having fragment E1,2 bound in complex, with its active sites protected during the derivatization.
  • (13) An initial complex-soma inflection was observed on the rising phase of the action potential of some cells.
  • (14) Electron spin resonance studies indicate the formation of two vanadyl complexes that are 1:1 in vanadyl and deferoxamine, but have two or three bound hydroxamate groups.
  • (15) A complex linkage between the cytoskeleton and the extracellular matrix is illustrated both in the cord forming Sertoli and granulosa cells, and in the adjacent mesenchymal cells.
  • (16) When the eye was dissected into anterior uveal, scleral, and retinal complexes, prostaglandin D2 was formed in the highest degree in all the complexes, whereas prostaglandin E2 and F2 alpha formation was specific to given ocular regions.
  • (17) The possibility that both IL 2 production and IL 2R expression are autonomously activated early in T cell development, before acquisition of the CD3-TcR complex, led us to study the implication of alternative pathways of activation at this ontogenic stage.
  • (18) The disassembly of the synthetase complex is consistent with the structural model of a heterotypic multienzyme complex and suggests that the complex formation is due to the specific intermolecular interactions among the synthetases.
  • (19) The differential diagnosis is more complex in Hawaii due to the presence of granulomatous diseases such as tuberculosis and leprosy.
  • (20) Therapeutic possibilities for hepatogenous anaemia of complex genesis are discussed.

Hard


Definition:

  • (superl.) Not easily penetrated, cut, or separated into parts; not yielding to pressure; firm; solid; compact; -- applied to material bodies, and opposed to soft; as, hard wood; hard flesh; a hard apple.
  • (superl.) Difficult, mentally or judicially; not easily apprehended, decided, or resolved; as a hard problem.
  • (superl.) Difficult to accomplish; full of obstacles; laborious; fatiguing; arduous; as, a hard task; a disease hard to cure.
  • (superl.) Difficult to resist or control; powerful.
  • (superl.) Difficult to bear or endure; not easy to put up with or consent to; hence, severe; rigorous; oppressive; distressing; unjust; grasping; as, a hard lot; hard times; hard fare; a hard winter; hard conditions or terms.
  • (superl.) Difficult to please or influence; stern; unyielding; obdurate; unsympathetic; unfeeling; cruel; as, a hard master; a hard heart; hard words; a hard character.
  • (superl.) Not easy or agreeable to the taste; stiff; rigid; ungraceful; repelling; as, a hard style.
  • (superl.) Rough; acid; sour, as liquors; as, hard cider.
  • (superl.) Abrupt or explosive in utterance; not aspirated, sibilated, or pronounced with a gradual change of the organs from one position to another; -- said of certain consonants, as c in came, and g in go, as distinguished from the same letters in center, general, etc.
  • (superl.) Wanting softness or smoothness of utterance; harsh; as, a hard tone.
  • (superl.) Rigid in the drawing or distribution of the figures; formal; lacking grace of composition.
  • (superl.) Having disagreeable and abrupt contrasts in the coloring or light and shade.
  • (adv.) With pressure; with urgency; hence, diligently; earnestly.
  • (adv.) With difficulty; as, the vehicle moves hard.
  • (adv.) Uneasily; vexatiously; slowly.
  • (adv.) So as to raise difficulties.
  • (adv.) With tension or strain of the powers; violently; with force; tempestuously; vehemently; vigorously; energetically; as, to press, to blow, to rain hard; hence, rapidly; as, to run hard.
  • (adv.) Close or near.
  • (v. t.) To harden; to make hard.
  • (n.) A ford or passage across a river or swamp.

Example Sentences:

  • (1) Lucy and Ed will combine coverage of hard and breaking news with a commitment to investigative journalism, which their track record so clearly demonstrates”.
  • (2) Sierra Leone is one of the three West Africa nations hit hard by an Ebola epidemic this year.
  • (3) Topical and systemic antibiotic therapy is common in dermatology, yet it is hard to find a rationale for a particular route in some diseases.
  • (4) Given Australia’s number one position as the worst carbon emitter per capita among major western nations it seems hardly surprising that islanders from Fiji, Samoa, Vanuatu and other small island developing states have been turning to Australia with growing exasperation demanding the country demonstrate an appropriate response and responsibility.
  • (5) They had learned through hard experience what Frederick Douglass once taught -- that freedom is not given, it must be won, through struggle and discipline, persistence and faith.
  • (6) In 60 rhesus monkeys with experimental renovascular malignant arterial hypertension (25 one-kidney and 35 two-kidney model animals), we studied the so-called 'hard exudates' or white retinal deposits in detail (by ophthalmoscopy, and stereoscopic color fundus photography and fluorescein fundus angiography, on long-term follow-up).
  • (7) It is a moment to be grateful for what remains of Labour's hard left: an amendment to scrap the cap was at least tabled by John McDonnell and Jeremy Corbyn but stood no chance.
  • (8) She stopped working only when the pain made it hard for her to get to work.
  • (9) He was reclusive, I know that, and he was often given a hard time for it.
  • (10) This defeat, though, is hardly a good calling card for the main job.
  • (11) Since this test is easily performed and hardly stresses the patient, it should routinely be the initial one for the diagnosis of renal osteopathy.
  • (12) Never become so enamored of your own smarts that you stop signing up for life’s hard classes.
  • (13) But I don't wish to be too hard on the judge for not taking that view.
  • (14) Our campaign has been going for some time and each step in our progress has been hard won, by campaigners paid and volunteer alike.
  • (15) I am rooting hard for you.” Ronald Reagan simply told his former vice-president Bush: “Don’t let the turkeys get you down.” By 10.30am Michelle Obama and Melania Trump will join the outgoing and incoming presidents in a presidential limousine to drive to the Capitol.
  • (16) All the same, it's hard to approach the school, which charges nearly £28,000 for boarders and nearly £19,000 for day girls and is sometimes called "the girls' Eton", without a few prejudices.
  • (17) Governmental officials as well as medical scientists in Taiwan have worked hard in recent years to develop and to implement various measures, such as prenatal diagnosis and neonatal screening, to lower the incidence of hereditary diseases and mental retardation in the population.
  • (18) Cooper, who was briefly a social worker in Los Angeles, also suggests working hard to build a rapport with colleagues in hotdesking situations.
  • (19) Critics of wind power peddle the same old myths about investment in new energy sources adding to families' fuel bills , preferring to pick a fight with people concerned about the environment, than stand up to vested interests in the energy industry, for the hard-pressed families and pensioners being ripped off by the energy giants.
  • (20) The spirit is great here, the players work very hard, we kept the belief when we were in third place and now we are here.