What's the difference between cephalization and evolutionary?

Cephalization


Definition:

  • (n.) Domination of the head in animal life as expressed in the physical structure; localization of important organs or parts in or near the head, in animal development.

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) Survival and healing of "extremely severe" grade intoxication can only be obtained through a surgical intervention within the first hours; a laparotomy will indicate the depth of the lesions, which is not determined by endoscopy, and will consist of Celerier's stripping method and if necessary a gastrectomy, more seldom a cephalic duodeno-pancreatectomy.
  • (3) In embryos examined 2 days after CP administration, fetal weight and brain weight were less than controls, but cephalic AChE was higher (p less than 0.001).
  • (4) The use of this approach is associated with a lower reoperation rate than the cephalic vein way.
  • (5) This is a case controlled study of 385 women with breech presentation and 357 with cephalic presentation.
  • (6) Sympathetic activity was altered by temporarily lowering cephalic perfusion pressure (CPP) from 90 to 20 mmHg while aortic pressure was held constant.
  • (7) Seven peripheral vein sites were successfully venipunctured in unanaesthetized chinchillas: the femoral, cephalic, auricular, saphenous, dorsalis penis, lateral abdominal and tail veins.
  • (8) "Half-way", Secalon-Seldy, soft venous catheters, 40 cm long, were inserted by basilic (n = 90) and cephalic (n = 31) veins at the fossa cubiti in 121 patients (71 men and 50 women) aged between 19 and 88 years whose heights varied from 152-197 cm.
  • (9) is a benign disease of the pancreas, limited to its cephalic portion, without demonstrated pathogenesis.
  • (10) Three patients with unstable fractures got cranial perforation of the cephalic screw after mobilisation.
  • (11) Conventional Roentgenographic Cephalometric Methods (RCM) have certain conceptual and geometric constraints that ensure that their descriptions of cephalic growth and comparisons of cephalic form are reference-frame-dependent; and it is impossible to determine which, if any, RCM reference frame provides a biologically more correct description or comparison.
  • (12) To better understand the mechanism of cerebral blood flow during CPR in humans, we determined the aortic-carotid artery pressure difference, the cephalic perfusion pressure (the carotid artery-jugular vein pressure difference), and thoracic inlet venous "valving" (the central venous-jugular vein pressure difference), while administering standard doses of epinephrine.
  • (13) For cephalic lesions, if excision surgery seems difficult, it may be conceivable, using modern techniques of investigation, to adopt a conservative attitude when there are no features suggestive of potential malignant change.
  • (14) We have compared IOP elevations induced by water-loading and by increased cephalic venous pressure in normal and denervated pigmented rabbits.
  • (15) A technique of cephalic perforation and fetal bone screw application is described in 9 cases of severe abruptio placentae complicated by intra-uterine fetal death and uterine inertia.
  • (16) A diagnosis of benign cephalic histiocytosis was made on the basis of these clinical, histological, and ultrastructural findings.
  • (17) The following clinical factors tend to be associated with an increased number of respirator brains: A. Cerebral trauma B. Subnormal body timperature C. Low systolic blood pressure D. Dilated pupils E. Pupils unresponsive to light F. Absence of cephalic reflexes G. Electrocerebral Silence (ECS) 6.
  • (18) On the contrary, the SEPs obtained with a cephalic reference on stimulating the posterior tibial nerves were of small amplitude and disorganized.
  • (19) The cephalic signal can be superseded by juvenile hormone, whose presence is necessary for each follicle to become vitellogenic.
  • (20) The cells contained spherical granules with variable densities and diameters ranging between 40 and 280 nm in the rostral (=cephalic) lobe, and between 60 and 260 nm in the caudal lobe.

Evolutionary


Definition:

  • (a.) Relating to evolution; as, evolutionary discussions.

Example Sentences:

  • (1) Gradual evolutionary change by natural selection operates so slowly within established species that it cannot account for the major features of evolution.
  • (2) The paper develops a model as a framework for monitoring the course of the program through the policy cycle and recommends that the policy process be considered as dynamic, interactive, and evolutionary.
  • (3) Therefore, the evolutionary origins, and perhaps the functions, of the Ia gamma chains are distinct from those of the other two Ia subunits alpha and beta.
  • (4) The sequence data were used to infer phylogeny by using a maximum-parsimony method, an evolutionary-distance method, and the evolutionary-parsimony method.
  • (5) Since the four determining coefficients may change over evolutionary time-scales, the mathematical results together with a natural selection argument proves that virulence gamma 2 attenuates.
  • (6) For evolutionary biologists population variability per se has proven of interest.
  • (7) The results found with individual chromosomes in the different species also appear relevant, in the light of the evolutionary relationships between these nonhuman primates and man.
  • (8) Genetic distances were calculated to determine evolutionary relationships.
  • (9) Detailed information on the structure and regulation of MHC gene expression will be required to understand fully the biologic role of the MHC and the evolutionary relationships between species.
  • (10) In conclusion, DNA has been transferred sequentially from the chloroplast to the mitochondrion during crucifer evolution and there cpDNA sequences can persist in the mitochondrial genome over long periods of evolutionary time.
  • (11) In 1868, Thomas Huxley suggested that Archaeopteryx was an evolutionary link between dinosaurs and birds.
  • (12) Statistical analysis of 251 phylogenetically informative nucleotide positions rejects the "volvocine lineage" hypothesis, which postulates a monophyletic evolutionary progression from unicellular organisms (such as Chlamydomonas), through colonial organisms (e.g., Gonium, Pandorina, Eudorina, and Pleodorina) demonstrating increasing size, cell number, and tendency toward cellular differentiation, to multicellular organisms having fully differentiated somatic and reproductive cells (in the genus Volvox).
  • (13) This approach is correct for the period of the new evolutionary synthesis, too.
  • (14) Our findings demonstrate that the amino acid sequence of neuromedin U is markedly conserved in species which have diverged millions of years ago in evolutionary terms.
  • (15) Conventional dietary categories, particularly frugivory, are inadequate for organizing the behavioral and anatomical evidence pertinent to evolutionary adaptation.
  • (16) Maximum power output for the fast muscle fibres from the Antarctic species at -1 degree C is around 60% of that of the tropical fish at 20 degrees C. Evolutionary temperature compensation of muscle power output appears largely to involve differences in the ability of cross bridges to generate force.
  • (17) We propose that human influenza A is unique in that it is the only virus group in which antibody selection dominates evolutionary change.
  • (18) If other techniques of phylogenetic analysis confirm this evolutionary tree, we propose that the photocytes be given urkingdom status.
  • (19) Kimura's estimate of evolutionary distance, K, is 0.353, while those of Miyata and Yasunaga are KS = 0.708 and KA = 0.171.
  • (20) In order to understand the evolutionary history of the B sheep locus, we have sequenced the beta B gene from these sheep, and the beta C gene from A-haplotype sheep, and compared the sequences to those of the sheep beta A, goat beta C, and beta A, and cow adult beta genes.

Words possibly related to "cephalization"