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Summary  

We present new properties of the Besov--Hankel spaces introduced in [10]. We prove a Hankel version of a result of Bui, Paluszyński and Taibleson obtaining new norms that define the topology of the Besov--Hankel spaces. Also we get atomic representations for the distributions in the spaces under consideration.

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Acta Physiologica Hungarica
Authors:
R Bravo Santos
,
J Delgado
,
J Cubero
,
L Franco
,
S Ruiz-Moyano
,
M Mesa
,
AB Rodríguez
,
C Uguz
, and
C Barriga

The objective of the present study was to compare differences between elderly rats and young obesity-induced rats in their activity/inactivity circadian rhythm. The investigation was motivated by the differences reported previously for the circadian rhythms of both obese and elderly humans (and other animals), and those of healthy, young or mature individuals. Three groups of rats were formed: a young control group which was fed a standard chow for rodents; a young obesity-induced group which was fed a high-fat diet for four months; and an elderly control group with rats aged 2.5 years that was fed a standard chow for rodents. Activity/inactivity data were registered through actimetry using infrared actimeter systems in each cage to detect activity. Data were logged on a computer and chronobiological analysis were performed. The results showed diurnal activity (sleep time), nocturnal activity (awake time), amplitude, acrophase, and interdaily stability to be similar between the young obesity-induced group and the elderly control group, but different in the young control group. We have concluded that obesity leads to a chronodisruption status in the body similar to the circadian rhythm degradation observed in the elderly.

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Journal of Radioanalytical and Nuclear Chemistry
Authors:
J. D. T. Arruda-Neto
,
A. C. Cestari
,
C. B. Zamboni
,
M. Saiki
,
G. P. Nogueira
,
L. E. C. Fonseca
,
M. V. Manso-Guevara
,
A. Deppman
,
V. P. Likhachev
,
J. Mesa
,
O. A. M. Helene
,
S. A. C. Jorge
,
M. N. Martins
,
A. N. Gouveia
,
O. Rodriguez
,
F. Guzmán
, and
F. Garcia

Summary  

Neutron activation analysis has been used to study uranium incorporation in poultry bones as function of chow doped with: (a) uranium (20 ppm); (b) U-doped food (20 ppm) plus phytase (120 ppm) and (c) U-doped food (20 ppm) plus phytase (180 ppm). To investigate this situation experiments involving several groups of Cobb broilers was performed. Two animals per group were sacrificed weekly up to their adultness and uranium concentration in the tibia was measured. It was observed that the concentration of uranium (µg U/g bone) is decreasing all along the animal life spanning period of 14-42 days. This behavior suggests that the skeleton mass is growing faster than the corresponding accumulation of uranium. The administration of phytase seems not to alter this scenario.

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