Search

Your search keyword '"Halberg F"' showing total 1,579 results
Start Over Author "Halberg F"
1,579 results on '"Halberg F"'

1. Theory of coupled electromagnetic circuits, the connection to quantum mechanical resonance interactions and relevance to chronobiology

Author

Ulmer, W., Cornelissen, G., Halberg, F., and Schwarzkopff, O.

Subjects
Physics - Medical Physics, Physics - Biological Physics
Abstract

The existence of specific biorhythms and the role of geomagnetic and/or solar magnetic activities are well-established by appropriate correlations in chronobiology. From a physical viewpoint, there are two different accesses to biorhythms to set up connections to molecular processes: 1. Diffusion of charged molecules in magnetic fields. 2. Quantum mechanical perturbation theoretical methods and their resonance dominators to characterize specific interactions between constituents. The methods of point 2 permit the treatment of molecular processes by circuits with characteristic resonances and 'beat-frequencies', which result from the primarily fast physical processes. As examples the tunneling processes between DNA base pairs (H bonds) and the ATP decomposition are considered., Comment: Reprint

Published
2011

32. Arterial stiffness independently predicts cardiovascular events in an elderly community — Longitudinal Investigation for the Longevity and Aging in Hokkaido County (LILAC) study

Author

Matsuoka, O., Otsuka, K., Murakami, S., Hotta, N., Yamanaka, G., Kubo, Y., Yamanaka, T., Shinagawa, M., Nunoda, S., Nishimura, Y., Shibata, K., Saitoh, H., Nishinaga, M., Ishine, M., Wada, T., Okumiya, K., Matsubayashi, K., Yano, S., Ichihara, K., Cornélissen, G., Halberg, F., and Ozawa, T.

Published
2005
Full Text
View/download PDF

35. Common carotid intima-media thickness is predictive of all-cause and cardiovascular mortality in elderly community-dwelling people: Longitudinal Investigation for the Longevity and Aging in Hokkaido County (LILAC) study

Author

Murakami, S., Otsuka, K., Hotta, N., Yamanaka, G., Kubo, Y., Matsuoka, O., Yamanaka, T., Shinagawa, M., Nunoda, S., Nishimura, Y., Shibata, K., Takasugi, E., Nishinaga, M., Ishine, M., Wada, T., Okumiya, K., Matsubayashi, K., Yano, S., Ichihara, K., Cornélissen, G., and Halberg, F.

Published
2005
Full Text
View/download PDF

37. Fractal analysis of heart rate variability and mortality in elderly community-dwelling people — Longitudinal Investigation for the Longevity and Aging in Hokkaido County (LILAC) study

Author

Hotta, N., Otsuka, K., Murakami, S., Yamanaka, G., Kubo, Y., Matsuoka, O., Yamanaka, T., Shinagawa, M., Nunoda, S., Nishimura, Y., Shibata, K., Saitoh, H., Nishinaga, M., Ishine, M., Wada, T., Okumiya, K., Matsubayashi, K., Yano, S., Ichihara, K., Cornélissen, G., and Halberg, F.

Published
2005
Full Text
View/download PDF

39. Chronomics, neuroendocrine feedsidewards and the recording and consulting of nowcasts—forecasts of geomagnetics

Author

Jozsa, R., Halberg, F., Cornélissen, G., Zeman, M., Kazsaki, J., Csernus, V., Katinas, G.S., Wendt, H.W., Schwartzkopff, O., Stebelova, K., Dulkova, K., Chibisov, S.M., Engebretson, M., Pan, W., Bubenik, G.A., Nagy, G., Herold, M., Hardeland, R., Hüther, G., Pöggeler, B., Tarquini, R., Perfetto, F., Salti, R., Olah, A., Csokas, N., Delmore, P., Otsuka, K., Bakken, E.E., Allen, J., and Amory-Mazaudin, C.

Published
2005
Full Text
View/download PDF

44. Circadian and ultradian variation in pancreatic secretion of meal-fed pigs after weaning

Author

Thaela, M.-J., Jensen, M.S., Cornelissen, G., Halberg, F., Noddegaard, F., Jakobsen, K., and Pierzynowski, S.G.

Subjects
Swine -- Physiological aspects, Pancreas -- Physiological aspects, Animal nutrition -- Research, Zoology and wildlife conservation
Abstract

We studied the time structure of pancreatic secretion in two experiments involving seven 6- to 7-wk-old intact male pigs, surgically fitted with a jugular vein catheter for blood sampling, pancreatic catheter, and a duodenal T-cannula for chronic pancreatic juice sampling for 72 h at 30- to 60-min intervals. Pigs were kept in metabolic cages in a regimen of 12 h of light alternating with 12 h of darkness and were fed at 0800, 1500, and 2200 daily a standard diet based on barley, soybean meal, and fish meal. Beginning 4 d after surgical recovery, three 24-h collections of pancreatic juice and blood sampling were begun either at 0700 or 0800 every 2nd d for 5 d. Pancreatic secretion exhibited a pattern characterized by distinct meal-related secretions of the first phase (postprandial), containing large amounts of protein and enzymes (trypsin and chymotrypsin), and by non-food-stimulated secretions of the second phase with less protein and enzymes. During the dark span, the first phase was practically absent; the response of the pancreatic secretion to the 2200 meal was not very pronounced. Apart from the anticipated circadian rhythm demonstrable by single cosinor analysis on a group basis, a prominent 8-h component was almost invariably statistically significant. Moreover, an approximately 3.43-h component was also prominent. These data indicate that pancreatic secretions are circadian periodic and that their response to a standard meal is also circadian-stage dependent. The circadian components may have been free-running because the pigs were adjusting themselves to the changing phase and that resulted in the period being different from exactly 24 h. Key Words: Pancreas, Circadian Rhythm, Protein, Trypsin, Pigs

Published
1998

Catalog

Books, media, physical & digital resources
See catalog results