What's the difference between alteration and modification?

Alteration


Definition:

  • (n.) The act of altering or making different.
  • (n.) The state of being altered; a change made in the form or nature of a thing; changed condition.

Example Sentences:

  • (1) Herpesviruses such as EBV, HSV, and human herpes virus-6 (HHV-6) have a marked tropism for cells of the immune system and therefore infection by these viruses may result in alterations of immune functions, leading at times to a state of immunosuppression.
  • (2) The process of sequence rearrangement appears to be a significant part of the evolution of the genome and may have a much greater effect on the evolution of the phenotype than sequence alteration by base substitution.
  • (3) 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.
  • (4) When chimeric animals were subjected to a lethal challenge of endotoxin, their response was markedly altered by the transferred lymphoid cells.
  • (5) Morphological alterations in the lungs of pheasants after prolonged high-dosage administration of bleomycin sulfate were studied by light and electron microscopy.
  • (6) Incubation with IFN alpha or IFN gamma for 24 h resulted in only modest cytokinetic alterations, and they did not modify the effects of FUra.
  • (7) We report a series of experiments designed to determine if agents and conditions that have been reported to alter sodium reabsorption, Na-K-ATPase activity or cellular structure in the rat distal nephron might also regulate the density or affinity of binding of 3H-metolazone to the putative thiazide receptor in the distal nephron.
  • (8) In dorsoventral (DV) reversed wings at both shoulder or flank level, the motor axons do not alter their course as they enter the graft.
  • (9) Neither spermidine nor spermine (0.5 mM) significantly altered [Ca2+]i.
  • (10) In addition to the changes associated with blood group A, we also found a decrease in sugar content, alterations in other antigens, and changes in the levels of several glycosyltransferases in cancerous tissues.
  • (11) When the concentration of thrombin or fibrinogen was altered systematically, mu T and mup were found to mirror each other except when the fibrinogen concentration was increased at low thrombin concentrations.
  • (12) Arteries treated with atrial natriuretic peptide showed no alterations in relaxation or cGMP content after incubation with pertussis toxin.
  • (13) These results could be explained by altered tissue blood flow and a decreased metabolic capacity of the liver in obese subjects.
  • (14) The sequential histopathologic alterations in femorotibial joints of partial meniscectomized male and female guinea pigs were evaluated at 1, 2, 3, 6, and 12 weeks post-surgery.
  • (15) However, survival was closely related to the severity of the illness at the time of randomization and was not altered by shunting.
  • (16) Brain damage may be followed by a number of dynamic events including reactive synaptogenesis, rerouting of axons to unusual locations and altered axon retraction processes.
  • (17) Since the advance and return of sperm inside the tubes could facilitate the interaction of sperm with secretions participating in its maturation, the persistent infertility after vasectomy could be related to the contractile alteration that follows the excessive tubal distention.
  • (18) Sixteen patients (27%) manifested anomalies of the urinary tract: 12 had markedly altered kidneys, 8 of which were unilateral and ipsilateral to the diaphragmatic defect.
  • (19) Corticosterone (4 x 10(-5) M) did not alter the stimulation-evoked 3H-overflow at 1-30 Hz.
  • (20) The results show that the presence of histones does not alter the bimodal DNA binding process.

Modification


Definition:

  • (n.) The act of modifying, or the state of being modified; a modified form or condition; state as modified; a change; as, the modification of an opinion, or of a machine; the various modifications of light.

Example Sentences:

  • (1) A modification of the manual glucose oxidase-gum guaiacum method of Shipton, B., Wood, P.J.
  • (2) The significance of minor increases in the serum creatinine level must be recognized, so that modifications of drug therapy can be made and correction of possibly life-threatening electrolyte imbalances can be undertaken.
  • (3) A modification of Mason's vertical banded gastroplasty for morbid obesity is presented, along with experience from 62 treated patients.
  • (4) Training in social skills specific to fostering intimacy is suggested as a therapeutic step, and modifications to the social support measure for future use discussed.
  • (5) While stereology is the principal technique, particularly in its application to the parenchyma, other compartments such as the airways and vasculature demand modifications or different methods altogether.
  • (6) The time-course and dose-response for this modification of pp60c-src paralleled PDGF-induced increases in phosphorylation of pp36, a major cellular substrate for several tyrosine-specific protein kinases.
  • (7) The defensive modifications of the functions of the ego itself seen in micropsia are closely allied to those seen in the dèjá vu experience and in depersonalization.
  • (8) In addition to the 89 cases of sudden and unexpected death before the age of 50 (preceded by some modification of the patient's life style in 29 cases), 11 cases were symptomatic and 5 were transplanted with a good result.
  • (9) These results suggest that photochemical modification of a single residue of aspartate (or asparagine) is largely, if not entirely, responsible for photoinactivation of the enzyme under these conditions.
  • (10) Modifications were made in the hydrophobic part (cinnamoyl moiety) and the hydrophilic part (anthranilate moiety) of 3a.
  • (11) However, a highly significant upward shift of the proliferating cell compartment was observed in the cancer group, resulting in a specific modification of the [3H]TDR labeling pattern in 6 of 17 specimens.
  • (12) We have used a modification of the rotating-frame imaging technique to measure PCr-to-ATP ratio non-invasively in human heart.
  • (13) It is proposed that in A. brasilense, the PII protein and glutamine synthetase are involved in a post-translational modification of NifA.
  • (14) Chemical modification of aldolase leads to formation of stable N epsilon (4-carboxybenzenesulfonyl-lysine (Cbs-Lys) and O-(4-carboxybenzenesulfonyl-tyrosine (Cbs-Tyr) derivatives.
  • (15) TK1 showed the most restricted substrate specificity but tolerated 3'-modifications of the sugar ring and some 5-substitutions of the pyrimidine ring.
  • (16) It now seems clear that greater precision can be achieved through modification of the original technique.
  • (17) This implies that these proteins are quantitatively absorbed from the peritoneum without undergoing modifications.
  • (18) Quality evaluations by usual human spermiogram methods were applicable with only minor modifications to the procedures.
  • (19) In all the three tRNA species examined, the cytosine residues that were susceptible to the modification were the same in the aminoacylated tRNA and the unacylated tRNA.
  • (20) These results would suggest that N-terminal acetylation and C-terminal proteolytic cleavage are important post-translational modifications of the forms of Amia beta-endorphin.