(n.) A tree of several species, constituting the genus Betula; as, the white or common birch (B. alba) (also called silver birch and lady birch); the dwarf birch (B. glandulosa); the paper or canoe birch (B. papyracea); the yellow birch (B. lutea); the black or cherry birch (B. lenta).
(n.) The wood or timber of the birch.
(n.) A birch twig or birch twigs, used for flogging.
(n.) A birch-bark canoe.
(a.) Of or pertaining to the birch; birchen.
(v. t.) To whip with a birch rod or twig; to flog.
Example Sentences:
(1) Sixty patients with seasonal allergic rhinitis due to birch pollen were enrolled in an open, randomized parallel group study.
(2) If the majority of relevant tree pollens are to be included in a diagnostic or therapeutic programme in Western Sweden it should contain birch, alder, hazel, beech and bog-myrtle allergens.
(3) Bet v I, the major birch pollen allergen, could be extracted easily from pollen, and in low amounts from callus and leaves.
(4) In the case of initially negative tests with positive second and third SPTs the incidence ranged between 3.2% (cat dander) and 4.3% (birch pollen) per year.
(5) The sera that did not detect the 15 kD bands in celery failed to react with both the 15 kD mugwort component and the 14 and 16 kD birch components.
(6) In previous experiments it was found that birch, beech, alder, hazel and oak are pollens with importance in pathogenesis of early pollinosis in our region of Central Europe.
(7) We conclude that in children with birch pollinosis oral immunotherapy with high doses of a biologically potent preparation in enteric-coated capsules is effective, easy to perform, economic and safe.
(8) The patients selected for study were subjects with a combined inhalant allergy to birch pollen and an oral allergy to apple fruit.
(9) In the same area, the birch pollen load was 2.8 times higher, which caused specific IgE in 10.5% as against 3.5% of the other group (P less than 0.01) as well as positive skin prick test in 9.0% as against 3.5% (P less than 0.05).
(10) Moreover, a major pollen allergen in birch (BetvI) has a 44% identity with PvPR1 proteins.
(11) It appears that screening for an IgE-mediated allergy can be performed with a limited number of skin tests (rye grass, timothy, birch, house dust mite and cat).
(12) RAST investigations on the sera of 27 patients suffering from celery allergy showed specific IgE to mugwort and birch in 15 cases; sensitization to mugwort or birch alone only occurred in 5 and 7 cases, respectively.
(13) Nine patients with strictly seasonal allergic rhinitis caused by birch pollen and five healthy nonatopic control subjects participated in the present study, which started 1 wk before the birch pollen season and continued throughout the entire pollen season.
(14) Of all positive RAST reactions observed, 74% were against the following allergens: horse and cat epithelium, birch and timothy pollen, and house dust.
(15) Thus 98% of atopic patients with seasonal allergic rhinitis were detected by an allergen panel consisting of timothy, birch and mugwort.
(16) The sera selected were positive in the RAST for both birch pollen and fruits.
(17) Cross-incubations: birch pollen incubated with antibodies against hazel (Ab-CA), or alder (Ab-AI), showed various intensities of gold labelling for each of the three species.
(18) We have studied the influence of substance P (SP) on the proliferative response of concanavalin A (ConA)-activated peripheral blood lymphocytes from 16 birch pollen-allergic patients, sampled before and during the pollen season, and from 15 normal individuals.
(19) The beavers have felled most of the bankside birch, sycamore and other trees they like to eat and use for their dams.
(20) Nine asthmatic patients with an allergy to birch or timothy underwent bronchial allergen provocations on three different trial days, with intervals of 2 to 5 wk.
Birth
Definition:
(n.) The act or fact of coming into life, or of being born; -- generally applied to human beings; as, the birth of a son.
(n.) Lineage; extraction; descent; sometimes, high birth; noble extraction.
(n.) The condition to which a person is born; natural state or position; inherited disposition or tendency.
(n.) The act of bringing forth; as, she had two children at a birth.
(n.) That which is born; that which is produced, whether animal or vegetable.
(n.) Origin; beginning; as, the birth of an empire.
(n.) See Berth.
Example Sentences:
(1) These results indicated that the PG determination was the most accurate predictor of fetal lung well-being prior to birth among the clinical tests so far reported.
(2) within 12 h of birth followed by similar injections every day for 10 consecutive days and then every second day for a further 8 weeks, with mycoplasma broth medium (tolerogen), to induce immune tolerance.
(3) In this article we report the survival and morbidity rates for all live-born infants weighing 501 to 1000 gram at birth and born to residents of a defined geographic region from 1977 to 1980 (n = 255) compared with 1981 to 1984 (n = 266).
(4) Low birth weight, short stature, and mental retardation were common features in the four known patients with r(8).
(5) Oculomotor paresis with cyclic spasms is a rare syndrome, usually noticeable at birth or developing during the first year of life.
(6) The final number of fibers--140,000-165,000--is reached by the sixth week after birth.
(7) However, there was no correlation between the length of time PN was administered to onset of cholestasis and the gestational age or birth weight of the infants.
(8) Most thyroid hormone actions, however, appear in the perinatal period, and infants with thyroid agenesis appear normal at birth and develop normally with prompt neonatal diagnosis and treatment.
(9) These data, then, indicate that the ability to produce C3NeF autoantibody is present from the time of birth in normal individuals.
(10) Foetal serum TSH concentration declined significantly between 20 and 21 days of gestation, reached a low level at delivery, and remained low for several days after birth.
(11) The deep cerebellar nuclei were moderately labeled at birth and gradually decreased in density thereafter.
(12) As many girls as boys receive primary and secondary education, maternal mortality is lower and the birth rate is falling .
(13) The influence of blood and blood-product therapy was studied in two groups of children: 1) 90 children who had exchange transfusion after birth because of serologic incompatibility (aged 5 months to 5 years).
(14) Tables provide data for Denmark in reference to: 1) number of legal abortions and the abortion rates for 1940-1977; 2) distribution of abortions by season, 1972-1977; 3) abortion rates by maternal age, 1971-1977; 4) oral contraceptive and IUD sales for 1977-1978; and 5) number of births and estimated number of abortions and conceptions, 1960-1975.
(15) Women who make their first visit during their first pregnancy are more likely than those who are not pregnant to receive a pregnancy test or counseling on matters other than birth control.
(16) The sexual attitudes and beliefs of 20 children who have been present at the labor and delivery of sibs and have observed the birth process are compared with 20 children who have not been present at delivery.
(17) The last stems from trends such as declining birth rate, an increasingly mobile society, diminished importance of the nuclear family, and the diminishing attractiveness of professions involved with providing maintenance care.
(18) A multiple regression analysis between maxBIL and the significantly correlated parameters showed that only gestational age and birth weight remained significantly correlated with maxBIL.
(19) Ad-infected infants tended to have earlier gestations and lower birth weights.
(20) Galactosylsphingosine had already accumulated at birth and dramatically increased with age.