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Night and Day: Night First Book1 When spring comes, the work begins.2 —Folk saying 1 Every year the coming of spring joy tickles hearts. Warm blood rushes to nature’s trembling bodies once again. The ever-so-green sochpopuks of the willows begin to quiver like a young woman’s intricate braids. Under the ice the somber cheeks of the murky running waters begin to smile; the water, though tired and limping, like a freed slave, begins to gnaw its way forward towards the satisfaction of liberty. Birds begin to appear one by one at the ends of branches. The first

, 607–608 : 1073–1084. M aeda K., M ori Y., S awasaki T. & K ano Y., 1984: Diurnal changes in peripheral melatonin concentration in goats and effects of light or dark interruption. Nihon Juigaku Zasshi , 46 : 837–842. M arseglia L., D’A ngelo G., M anti S., S alpietro C., A rrigo T., B arberi I., R eiter R. J. & G itto E., 2014: Melatonin and atopy: role in atopic dermatitis and asthma. International Journal of Molecular Sciences , 15 : 13482–13493. M artinez -N icolas A., M adrid J. A. & R ol M. A., 2014: Day-night contrast as source of health for

Kinetic of Lipoquinone and Pigment Synthesis in Green Hordeum Seedlings during an Artificial Day-Night Rhythm with a Prolonged Dark Phase Hartmut K. Lichtenthaler und Karl H. Grumbach Botanisches Institut, Universität Karlsruhe (Z. Naturforsch. 29 c, 532 — 540 [1974] ; received May 9/24, 1974) Chloroplast Prenyllipid Synthesis, Light-Dark Change, Thylakoid Turnover The effect of a prolonged darkness (48 h) with a following re-illumination on the prenyllipid metabolism of chloroplasts is tested in green Hordeum seedlings. Continuous darkness induces thylakoid

their performance. Gaining a correct understanding of the effect of batting during the evening is therefore of interest for both strategic and administrative reasons. From a strategic perspective, a correct quantification of the effect of batting during the evening may allow for improved decision making by team captains and coaches. Batting during the evening has been a strategic issue since the introduction of day-night matches to the ODI style of the game in 1977. Teams have generally perceived that it is a disadvantage to bat during the evening and, in the data

Introduction As we complete this contribution, we experience the solstice of the 2014 year cycle. Based on current knowledge, there is no consistent association of planetary and/or moon cycles unequivocally linked to human physiology and behavior. Nonetheless, cyclic illumination originating from circadian day/night (light/dark; L/D) cycles are increasingly recognized to affect the course of our daily health. The clock-work timing mechanisms coordinate biochemical, physiological and behavioral conduct to maintain synchrony with the environmental cycles of L

youngest leaves of winter (cv. “Górczański”) and spring (cv. “Młochowski”) rape. Both genotypes were cultured under the same growth conditions (17/15 ∞C day/night, 16 h photo- period), but winter rape was additionally vernalized (5/2 ∞C day/night, 56 days) in order to induce the generative development. The cyclic voltammetric method was used to measure the redox potential of samples in the presence of Fe3+ ions. Changes in the redox activity were compared with changes in riboflavin content and activities of antioxidative enzymes: superoxide dismutase (SOD) and catalase

. ) (Z. Naturforsch. 27 a, 812—815 [1972] ; received 17 January 1972) Under normal conditions the carbon cycle is a stationary process. A varying C 0 2 partial pres- sure would cause deviations from the steady state. This process is analysed using a differen- tiated flow scheme of the carbon through the biosphere. For this purpose the biomass on land is divided into three reservoirs with average fixation times of 1 day (day-night-cycle), 2 years (annual period) , and 100 years (timber, humus), respectively. The kinetic analysis shows that about 70% of the global

fixes within the three predefined human-use areas as dependent (response) binary variables, using generalised linear mixed models (GLMM) with binomial logistic regression link function. Since we restricted data to nine tigers (30% of the population), we treated individual tigers as a random effect. That is, we treated the effects of this random variable as a random sample of the effects of all the tigers in the PTR. In the mixed-effects model (GLMM), sex, age group (generation), season, day/night, year (continuous), zone and 5 km buffer were treated as main effects

values of VO2 showed a signif- icant pattern (P-0.0001) of circadian rhythm with a peak in the afternoon and a nadir during the night with signif- icantly differences between the mean VO2 values. A cir- cadian variation of VO2 was found in more than 80% of preterm infants and was unrelated to gestational age, physical activity or environmental stress. The infants spent 90.4% of their time sleeping. Conclusions: These findings indicate the possible exis- tence of an endogenous circadian rhythm of VO2 in pre- term infants beginning shortly after birth. Day-night