What's the difference between evolvent and involute?

Evolvent


Definition:

  • (n.) The involute of a curve. See Involute, and Evolute.

Example Sentences:

  • (1) The origins of aging of higher forms of life, particularly humans, is presented as the consequence of an evolved balance between 4 specific kinds of dysfunction-producing events and 4 kinds of evolved counteracting effects in long-lived forms.
  • (2) There is no doubt that new techniques in molecular biology will continue to evolve so that the goal of gene therapy for many disorders may be possible in the future.
  • (3) An analysis of recent health-policy initiatives and evolving market factors helps to explain some of these observations.
  • (4) One or more of the followin factors were present in the "high-risk" group: ventricular dysfunction--ejection fraction less than 0.4, preinfarction angina, evolving infarction, recent infarction (less than 2 weeks), and refractory ventricular tachyarrhythmia.
  • (5) The final tests that evolved from this study are simple to perform, require only 6 mul of the sample per test, and are capable of detecting microgram and, in some cases, nanogram quantities of the product.
  • (6) The designs of mechanical prostheses have evolved since the early caged-ball prostheses.
  • (7) An analysis of 54 protein sequences from humans and rodents (mice or rats), with the chicken as an outgroup, indicates that, from the common ancestor of primates and rodents, 35 of the proteins have evolved faster in the lineage to mouse or rat (rodent lineage) whereas only 12 proteins have evolved faster in the lineage to humans (human lineage).
  • (8) As AIDS developed, the majority of viruses evolved an extended sequence in V1 that was rich in serine and threonine residues and shared similarity with proteins modified by O-linked glycosylation.
  • (9) The second evolved gradually; many people contributed to its success, including Foulkes, Main and Bridger.
  • (10) A 24-year-old man from rural Mississippi had a case of California encephalitis (CE) that evolved as a subacute encephalomyelitis.
  • (11) The immune system has evolved to protect an organism from the pathogens that invade it but the effector mechanisms involved in mediating this protection are potentially lethal to the host itself.
  • (12) The effect of deferring immediate coronary artery bypass was evaluated in two groups of similar patients having successful direct coronary artery thrombolysis with streptokinase in the treatment of evolving myocardial infarction.
  • (13) Generally its evolution is slow, but some times they evolve as acute inflammatory processes.
  • (14) Comparison with similar studies involving B. glabrata seems to indicate that a process of adaptation between S. mansoni and B. tenagophila is evolving, the 2 organisms having reached a high degree of compatibility in a few areas.
  • (15) We conclude that a single, toxin-activated sodium channel population with low affinity for TTX exists at early stages, whereas a second, high-affinity population evolves with time in primary rat muscle cultures.
  • (16) This study includes nine patients with a megakaryoblastic crisis in chronic myeloid leukemia (CML), four with acute megakaryoblastic leukemia (AM) and three with myeloid dysplasia later evolving into overt acute leukemia.
  • (17) Screening studies by sonography, eventually completed by CT, are essential to discover patients with ACKD, to follow them up and propose bilateral nephrectomy if ACKD evolves towards malignancy.
  • (18) To address the evolving trends in the choice of transabdominal or transcervical chorionic villus sampling (CVS) at a teaching hospital and to evaluate the influence of gestational age on the approach chosen.
  • (19) Canadian cancer care has evolved under systems of provincial and federal fiscal control and aims to optimize the management of patients within each province.
  • (20) Yet, in spite of this restriction, the 2-mu plasmid of yeast has evolved an elegant mechanism which can allow it to rapidly amplify its copy number without initiating multiple rounds of replication.

Involute


Definition:

  • (a.) Alt. of Involuted
  • (n.) A curve traced by the end of a string wound upon another curve, or unwound from it; -- called also evolvent. See Evolute.

Example Sentences:

  • (1) Here we report direct measurements of protein kinase C (PKC) activity in uninduced ectoderm, and in neuroectoderm shortly after induction by the involuting mesoderm, in Xenopus laevis embryos.
  • (2) The most common type of osteoporosis is involutional, and two subtypes are recognized: type 1 and type 2.
  • (3) The involution of crown odontoblasts after primary dentinogenesis in teeth of limited eruption is discussed.
  • (4) The treatment of hemangiomas with X-rays has been sharply criticized because of their tendency to involute spontaneously.
  • (5) Glands with only slight involution and containing numerous germinal centres were more commonly seen in young female patients.
  • (6) In conclusion, the association of T4 and iodide seems to be the best way to obtain a rapid and complete involution of thyroid hyperplasia.
  • (7) Less amount of parenchyma and growth of the stroma in baboons and a greater mitotic complex in rhesus monkeys show more pronounced involution processes in baboons.
  • (8) Further, CPA is unable to stimulate proliferation or restore the function of the involuted rat prostate.
  • (9) The MI response was however depressed in both age groups, and the thymus and bursa were involuted.
  • (10) It is concluded that the acute involution of the thymus in children with non-infectious and acute infectious diseases results in the progressive decrease of the production by the thymus of the immunomodulating polypeptides (thymic hormones) which is restored in the period of recovery.
  • (11) The involution progress of the tonsil is a shift from immature B- and T cell forms to matured differentiation stages.
  • (12) The interpretation of aspiration cytologic smears that contain a predominance of follicular components often presents a dilemma to the clinician who is treating a patient who has a dominant thyroid nodule, especially when thyroid-stimulating hormone suppression does not produce any significant involution of the dominant nodule.
  • (13) The time-courses of the biochemical and histopathological responses suggest that the lipid peroxidation may be an end-result, rather than a cause, of thymic involution and injury to thymic lymphocytes in nickel-treated rats.
  • (14) We conjecture that postmenopausal and involutional osteoporosis were far advanced before the development of acromegaly, explaining the coexistence of the two conditions.
  • (15) The myoepithelium of developing, lactating, and involuting mammary gland of the mouse exhibits a high alkaline phosphatase activity.
  • (16) Both the post-partum involution of the rat uterus and the rapid breakdown of collagen that accompanies it are extensively inhibited by oestrogenic hormones.
  • (17) These preparations revealed a failure of head involution and the loss or disruption of several head structures, including the salivary glands and the H-piece and ventral arm of the cephalopharyngeal apparatus.
  • (18) Thereafter, involution still continued and equal diameters for the horns were not found until 5 weeks after parturition.
  • (19) The enzymes glucose 6-phosphate dehydrogenase, 6-phosphogluconate dehydrogenase, phosphoglucomutase, UDP-glucose pyrophosphorylase, phosphofructokinase, ATP-citrate lyase and acetyl-CoA carboxylase have been assayed in rat mammary glands in various stages of involution after hypophysectomy and weaning.
  • (20) A total of 101 patients suffering from slowly progressive schizophrenia with hypochondriac symptomatology and a manifestation or a relapse of the disease in the involutional age have been studied.

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