Light at night

Light at night creates a conflicting signal to the biological clock and disrupts circadian physiology. In rodents, light at night increases the risk to develop mood disorders, overweight, disrupted energy metabolism, immune dysfunction and cancer.

13p vimanama2711 30-07-2020 10 1   Download

The experiment was conducted to investigate the post-partum behavioral activities (up to 12 hour postpartum) of 6 multiparous and 6 primiparous Gir cows towards their calves using low light-intensity cameras and video recorder. To facilitate behavioural data recording at night the calving pen was illuminated with bulbs. As the animal was accustomed to the similar light during the night at the farm, such illumination during the experiment was not being likely to influence the behaviour of the animals.

6p nguaconbaynhay6 23-06-2020 6 1   Download

The electric consumption in the building shares the highest portion in all user sectors. Therefore, energy conservation in building is important to get higher energy standard in the country. Retail and wholesale building consume high electricity. Energy consumption ratio in this building type is 40% Air conditioning, 28% refrigeration, 12% lighting and 20% from the other. Those element need to be focused. This research is an optimization of air conditioning design and building envelope with operation schedule, refrigeration and lighting system.

15p partimesinhvien 13-05-2020 18 1   Download

Goal: On the basis of studying drivers’ visibility in the condition of using the front lights and the brake capacity of automotive, this paper aims to calculate the safety speed of automotive in that lighting condition and xperiments are needed to verify the results of theoretical calculation.

24p nganhanggddt2014 01-07-2014 44 3   Download

It starts with a paperback copy of Ayn Rand’s “The Fountainhead” that I found buried in the sand of a beach in Mazatlan, Mexico in the spring break of one of my college years. I started reading "The Fountainhead" that night and finished it before the trip was over. Back in college at the University of Texas in El Paso, I was able to read the rest of her works. After reading Ayn Rand I was elated by the possibilities of free economies. I continued to read anything that could find that would throw any light on the subject....

33p geometry1122 09-05-2013 49 4   Download

THERE was no hope for him this time: it was the third stroke. Night after night I had passed the house (it was vacation time) and studied the lighted square of window: and night after night I had found it lighted in the same way, faintly and evenly. If he was dead, I thought, I would see the reflection of candles on the darkened blind for I knew that two candles must be set at the head of a corpse. He had often said to me: ‘I am not long for this world,’ and I had thought his words...

257p subtraction1122 28-04-2013 38 2   Download

The palace glittered with light and splendor; the servants ran here and there, arranging the sofas and chairs; the court gardener cast a searching glance at the groups of flowers which he had placed in the saloons; and the major domo superintended the tables in the picture gallery. The guests of the queen will enjoy to-night a rich and costly feast. Every thing wore the gay and festive appearance which, in the good old times, the king's palace in Berlin had been wont to exhibit.

218p congacon88 26-04-2013 54 4   Download

rystal and Jen were roomates. Also best friends. Jen wanted to be a journalist and Crystal wanted to be a model. They were very different but that somehow that made them closer. There was a huge party over at the football players dorm, so of course Crystal was there. Jen knew there was a test so she stayed at the dorm and studied. Later that night Crystal came to the dorm to pack her stuff so she could stay at her boyfriends dorm for the night. She didnt see jen so she figured she was in the bathroom. While Crystal collected her...

1p hoagiay_123 22-04-2013 35 3   Download

I shall never forget the walk I took one night in Vienne, after having accomplished the examination of an unknown Druidical relic, the Pierre labie, at La Rondelle, near Champigni. I had learned of the existence of this cromlech only on my arrival at Champigni in the afternoon, and I had started to visit the curiosity without calculating the time it would take me to reach it and to return. Suffice it to say that I discovered the venerable pile of grey stones as the sun set, and that I expended the last lights of evening in planning and sketching. I then turned my face...

88p nhokheo2 15-04-2013 43 3   Download

who went to the same school, and was only a year older. Maria had made sure that he was there, by a glance, directly after she had entered, then she never glanced at him again, but she wove him into her dreams along with the sweetness of the midsummer night, and the 1 .

0p nunongnuna 05-04-2013 59 2   Download

War, war, war. For me the beginning of the war was a torchlight tattoo on Salisbury Plain. It was held on one of those breathless evenings in July when the peace of Europe was trembling in the balance, and when most of us had a heartache in case--in case England, at this time of internal crisis, did not rise to the supreme sacrifice. It was just the night for a tattoo--dark and warm and still. Away across the plain a sea of mist was rolling, cutting us off from the outside world, and only a few pale stars lighted our stage from above. The field...

54p hotmoingay9 02-02-2013 50 3   Download

The trap had closed at sundown. In the last red light, the rabbit had battered himself against its walls until fear and numbness ached home and he crouched shaken by the flutterings of his heart. Otherwise there was no movement in him as night and the stars came. But when the moon rose, its light was caught icily in his great eyes, and he looked through shadows to the forest.

72p hotmoingay8 28-01-2013 76 7   Download

They were, one and all, from the broadest and best to the narrowest and least frequented, very dark. The oil and cotton lamps, though regularly trimmed twice or thrice in the long winter nights, burnt feebly at the best; and at a late hour, when they were unassisted by the lamps and candles in the shops, cast but a narrow track of doubtful light upon the footway, leaving the projecting doors and house-fronts in the deepest gloom. Many of the courts and lanes were left in total darkness; those of the meaner sort, where one glimmering light twinkled for a...

76p saimatkhauroi 01-02-2013 52 4   Download

The 1994 Chevrolet Monte Carlo SS hurtles south down Cahuenga after midnight, jury-rigged engine exhaling the throaty rasp of an emphysemic Olympian. Urban interceptor, an abandoned rental reclaimed as instrument of revolution. Or at least that’s what 0z0 said the night before as he drilled holes in the muffler to amplify the effect. “We’re gonna free the monster,” he smiled, lighting the welding torch.

27p hotmoingay9 26-01-2013 37 1   Download

When it comes to picking locks and cracking safes I admit to no master. The door to Inskipp's private quarters had an old-fashioned tumbler drum that was easier to pick than my teeth. I must have gone through that door without breaking step. Quiet as I was though, Inskipp still heard me. The light came on and there he was sitting up in bed pointing a .75 caliber recoilless at my sternum. "You should have more brains than that, diGriz," he snarled. "Creeping into my room at night! You could have been shot." "No I couldn't," I told him, as he stowed the cannon back under his pillow. "A...

31p hotmoingay7 23-01-2013 55 3   Download

There is a very old saying that all cats look grey at night. Today, thanks partly to the growing trend to furnish private homes and gardens with sophisticated outdoor lighting, that saying is no longer as true as it once was. Facades subtly accentuated by light and encircled by greenery imbue such buildings with an inviting, homely atmosphere. Illuminated gardens extend the domestic living space outwards, illuminated boundaries enable the space to be experienced as a whole, even in winter.

40p macj55 22-01-2013 61 6   Download

There is a simple recipe for preventing accidents: see and be seen. But vision is a complex process. Road lighting needs to take account of that. Daylight illuminance ranges from 5,000 to 100,000 lux (lx). On a moonlit night, it reaches 0.25 lx at most. The fact that we can “see” over this vast brightness range is due to the eye’s ability to adapt.

44p macj55 22-01-2013 71 10   Download

From the primitive pine-torch to the paraffin candle, how wide an interval! between them how vast a contrast! The means adopted by man to illuminate his home at night, stamp at once his position in the scale of civilisation. The fluid bitumen of the far East, blazing in rude vessels of baked earth; the Etruscan lamp, exquisite in form, yet ill adapted to its office; the whale, seal, or bear fat, filling the hut of the Esquimaux .or Lap with odour rather than light; the huge wax candle on the glittering altar, the range of gas lamps in our streets,--all...

164p window1234 02-01-2013 58 6   Download

Mr. Jones, of the Manor Farm, had locked the hen-houses for the night, but was too drunk to remember to shut the popholes. With the ring of light from his lantern dancing from side to side, he lurched across the yard, kicked off his boots at the back door, drew himself a last glass of beer from the barrel in the scullery, and made his way up to bed, where Mrs. Jones was already snoring. As soon as the light in the bedroom went out there was a stirring and a fluttering all through the farm buildings. Word had...

55p jaychouiloveyou 11-01-2011 128 17   Download

Read then the following passage carefully , then answer the questions below: (1m) For many families in Kenya, the prospect of better energy services would make their life different. An improved solar stove for cooking would reduce the arduous work of firewood collection, and women and children would not be breathing thick smoke while the cooking was going on. Small solar systems in the village would also mean that the clinic could operate at night and urgent operations could be carried out. Very small solar lighting systems would allow children to study in the evening and the school to...

9p vertu1209 20-10-2010 273 31   Download