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Tag: "morning" at biology news

Travelers can avoid jet lag by resetting their body clocks

...s recommend using the 0.5 dose in combination with morning intermittent bright light to advance their sleep s... earlier each day while using the light box in the morning and taking melatonin in the evening. If they did this for the number of days equivalent to the numb...

A resetting signal keeps circadian rhythm on track in Drosophila fruit flies

...ruit flies). The two key groups of neurons control morning and evening activity and are maintained in synch e...time. This daily resetting signal flows from the morning to the evening cells and maintains a 12-hour difference between the timing of morning and evening ac...

Lactose intolerance linked to ancestral environment

... recently investigated why spices are used and why morning sickness occurs. "Both appear to serve an important function to protect the individual," Sherman said. "Spices contain antimicrobial compounds, and they may be used to destroy food-borne pathogens, especially in hot climates. Nausea and vomiting ear...

Vineyard weeds found to host Pierce's disease of grapes

...ouse tests. Sunflower, cocklebur, annual bur-sage, morning glory, horseweed, sacred datura, poison hemlock, and fava bean were most frequently infected. "Our study confirmed that plant species cannot be simply classified as either 'hosts' or 'nonhosts' of X. fastidiosa, but vary considerably among plant spec...

Envisat and ERS-2 reveal hidden side of Hurricane Rita

...cted to make landfall on the Gulf coast during the morning of 24 September. ERS-2 joins in Rita observations The same day Envisat acquired its ASAR image of Rita, its sister spacecraft ERS-2 also made complementary observations of the hurricane's underlying wind fields using its radar scatterometer. ...

A novel method to measure circadian cycles

Everyone knows morning people and late-night owls. The variation in individual circadian rhythms is an anecdotal as well as experimentally verified fact. But, until now, to systematically study circadian differences (and thereby hope to rout out the underlying genetic cau...

Frog peptides block HIV in lab study

...erience. Later in the night, and especially in the morning hours, subjects report vivid dreams, indicating that the later stages of sleep can be associated with conscious experience, Tononi says. But why does consciousness fade during deep sleep early in the night? "You cannot say that consciousness fades b...

Deep sleep short-circuits brain's grid of connectivity

...erience. Later in the night, and especially in the morning hours, subjects report vivid dreams, indicating that the later stages of sleep can be associated with conscious experience, Tononi says. But why does consciousness fade during deep sleep early in the night? "You cannot say that consciousness fades b...

Breakthrough: Scientists create world's tiniest organic particles

...y." A report on the findings appeared online this morning (June 21) in the Journal of the American Chemical Society. Other authors -- all in chemistry at UNC -- are Drs. Jason P. Rolland and Ginger M. Denison, recent Ph.D. recipients; Drs. Benjamin W. Maynor and Larkin E. Euliss, postdoctoral fellows; and g...

Disabling gene defuses rheumatoid arthritis in mice

...oms often occur in episodic bursts and may include morning stiffness, fatigue and joint and muscle pain. In severe cases, rheumatoid arthritis can damage cartilage, tendons, ligaments and bone, leading to joint deformity and instability. Rheumatoid arthritis has long been recognized as a condition that invo...

Compounds in plastic packaging act as environmental estrogens altering breast genes

...nvironment Research Center at Fox Chase. After the morning poster session, he will give an oral presentation on "Estrogens as Carcinogens in the Human Breast." "Development of breast cancer entails multiple events, in which estrogen appears to play an important role," explained Russo. "Our laboratory has pi...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...the vicinity," said Banuelos. He noted that every morning trained workers swept through the fields to literally nip any flowers in the bud, and that netting and buried chicken wire were used to keep wildlife away from the plants. "One of the challenges in developing transgenic plants for remediation is eng...

Effective Cancer Treatments Follow The Clock

...red ?as if the drug were administered early in the morning or late at night. In contrast, the Cryptochrome knockout mice showed more resistance to the drug at all times than did normal mice. The researchers then tested whether this effect might be due to differences in the metabolic activation of the anti-c...

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