Changes in heart period, heart period variability, and a spectral analysis estimate of respiratory sinus arrhythmias during aortic nerve stimulation in rabbits.
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Animals↗
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Results for “Periodicity”
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Changes in heart period, heart-period variability, and a spectral analysis estimate of respiratory sinus arrhythmia in response to pharmacological manipulations of the baroreceptor reflex in cats.
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Animals↗
Axial periodicity in periodontal collagens. Human periodontal ligament and gingival connective tissue collagen fibers possess a dermis-like D-period.
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Adult↗
Infection with chloroquine-resistant Plasmodium falciparum in man: prepatent periods, incubation periods, and relationships between parasitemia and the onset of fever in nonimmune persons.
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ABO Blood-Group System↗
The fetal dose limit for flight personnel should be 1 mSv over the gestation period, rather than 5 mSv as recommended by the NCRP: for the proposition.
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Aircraft↗
Refractory auto-inflammatory syndrome associated with digenic transmission of low-penetrance tumour necrosis factor receptor-associated periodic syndrome and cryopyrin-associated periodic syndrome mutations.
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Adult↗
Metabolism of nucleic acids and protein in the liver, brain, and kidney of female rats subjected to dietary restriction during the period of gestation as well as the period of growth, gestation, and lactation.
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Animals↗
Computerized prediction of complications' development possibility. In the late myocard infarction development periods, according to the characteristic data of acute period.
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Adult↗
Effect of undernutrition during the perinatal period on caries development in the rat. 11. Caries susceptibility in underfed rats supplemented with protein or caloric additions during the suckling period.
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Animal Feed↗
Dracunculus infection in a dog during the 'post-eradication' period: the need for a longer period of surveillance.
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Animals↗
Periodic hormonogenesis--a new phenomenon. Periodicity in function of a hormone-producing tumor in man.
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Adenoma↗
Highly polarization-dependent periodic coupling in mechanically induced long period grating over air-silica fibers.
A very flexible and versatile tunable mechanical grating platform is introduced, with which highly polarization-dependent mode coupling is observed for three types of air-silica microstructured fibers: hollow core fiber, hexagonal-boundary holey fiber (HHF), and circular-boundary holey fiber. The resonances of gratings showed highly polarization-dependent broadband coupling compared with conventional single-mode fibers due to their unique beat-length dispersions between the core and the cladding modes, which could find applications in wideband polarization-dependent loss compensation. We further present significance of the spatial symmetry of HHF in distinct mode coupling for different rotation angles around the fiber axis.
Journal Article↗
Sinoauricular block with Wenckebach periods, with concurrent second degree atrioventricular block with Wenckebach periods: their occurrence in a presumably healthy young adult.
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Adult↗
The period of human ovulation and a consideration of the fertile and infertile periods.
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Female↗
Relation of pre-incubation factors and post-hatching performance to length of incubation period. I. Effects of egg weight and storage time on length of incubation period.
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Animals↗
Relation of pre-incubation factors and post-hatching performance to length of incubation period. II. Relation of length of incubation period to post-hatching performance.
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Animals↗
[Mutagenic effect of radiation on mice, subjected to gamma-irradiation during the embryonic period. III. Frequency of coat color mosaics among mice, heterozygous for recessive mutations, subjected to irradiation during the early periods of embryogenesis].
The frequency of coat colour and coat length mosaics was investigated among heterozygous for 7 or 6 recessive mutations mice, that were gamma-irradiated at doses of 100 or 200 r at different stages of embryogenesis. Only 4 mosaics with gray coat spots were found among 1399 animals that developed from embryos irradiated at doses of 100--200 r within 4,5--13,5 days of embryogenesis. 3 of these mosaics were found among 756 animals irradiated at the dose of 100 r at the 10,5 day of embryogenesis (0,35%). This frequency is considerably lower that the frequency of coat colour mosaics obtained by other authors in similar experiments.
Animals↗
Medicare program; schedule of limits on home health agency costs per visit for cost reporting periods beginning on or after July 1, 1993--HCFA. Notice with comment period.
This notice sets forth a revised schedule of limits on home health agency costs that may be paid under the Medicare program. As required by section 1861(v)(1)(L)(iii) of the Social Security Act (the Act), these limits are based on the current hospital wage index.
Geography↗