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Messages - Esrat

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EEE / Re: Did We Go to the Moon?
« on: April 12, 2015, 04:55:50 PM »
As technology advances much more than twenty century, if men could go to moon in 1969, then why they cannot go even in 2015?  :)

EEE / Did We Go to the Moon?
« on: April 07, 2015, 06:01:25 PM »
Forty five years ago, two Americans touched down on the moon and walked upon its surface. Now, NASA is trying to do it again with Constellation, an ambitious project to return humans to the moon by 2020.

But if NASA could do it in the eight years between President John F. Kennedy's 1961 speech that led to the historic first lunar landing of Apollo 11 on July 20, 1969, some wonder why it is so difficult to go back? By 2020, 16 years will have passed since NASA launched its new moon-bound vision in 2004.
For one thing, the goal this time around is significantly expanded from last time.

10 reasons for the Apollo landings were 'faked'

1) When the astronauts are putting up the American flag it waves. There is no wind on the Moon.
2) No stars are visible in the pictures taken by the Apollo astronauts from the surface of the Moon.
3) No blast crater is visible in the pictures taken of the lunar landing module.
4) The landing module weighs 17 tons and yet sits on top of the sand making no impression. Next to it astronauts’ footprints can be seen in the sand.
5) The footprints in the fine lunar dust, with no moisture or atmosphere or strong gravity, are unexpectedly well preserved, as if made in wet sand.
6)When the landing module takes off from the Moon’s surface there is no visible flame from the rocket.
7) If you speed up the film of the astronauts walking on the Moon’s surface they look like they were filmed on Earth and slowed down.
8) The astronauts could not have survived the trip because of exposure to radiation from the Van Allen radiation belt.
9) The rocks brought back from the Moon are identical to rocks collected by scientific expeditions to Antarctica.
10) All six Moon landings happened during the Nixon administration. No other national leader has claimed to have landed astronauts on the Moon, despite 40 years of rapid technological development.

করেছি প্রায় ২ বছর হল, এখন ও কোন response পাই নি...  :-[

আমার তো ভোটার আইডি নাই, আমি কি করবো??

Faculty Forum / Re: Stop Using These Words In Your Emails!
« on: February 23, 2015, 05:45:42 PM »
glad to know..

Faculty Forum / Re: Features of an Effective Teacher
« on: February 23, 2015, 05:44:17 PM »
glad to know  :)

Departments / Flexible work hours improve overall health
« on: January 29, 2015, 02:29:11 PM »

Giving employees flexible work hours help curb sleep deficiency and improve overall health, researchers report.

"In the absence of sufficient sleep, we are not as attentive or alert, process information more slowly, miss or misinterpret social and emotional cues and decision making is impaired," said Orfeu M. Buxton, associate professor of biobehavioral health at Pennsylvania State University.

For example, we may misjudge risks by undervaluing negative consequences and overvaluing potential rewards, he added.

Buxton and colleagues looked to see if a workplace intervention, designed to increase family-supportive supervision and give employees more control over their work time, improved sleep quantity and quality.

The researchers followed 474 employees, with nearly half of the employees serving as the control while the other half experienced the study intervention.

The intervention was designed to reduce conflicts between work and personal life and focused on two main cultural shifts: allowing employees to decide on when and where they worked and training supervisors to support their employees' personal lives.

Those who were assigned to the intervention were encouraged to be completely flexible about when and where they would work - at the office, from home or elsewhere - while still working the same number of hours as the control group.

Six months after the program began, the researchers observed work-related variables that they hoped to change with the intervention.

A year after the intervention, Buxton and colleagues followed up to observe outcomes, including changes in the amount and quality of sleep employees were getting.

"We showed that an intervention focused on changing the workplace culture could increase the measured amount of sleep employees obtain, as well as their perception that their sleep was more sufficient," Buxton added.

At 12 months, the researchers found that employees who participated in the intervention experienced an average of eight minutes more sleep per night, which is nearly an hour more sleep per week.

"Work can be a calling and inspirational but it should not be detrimental to health," Buxton noted.

The results were published in the journal Sleep Health.

EEE / Zebra's stripes function like air coolers
« on: January 29, 2015, 02:27:11 PM »
The distinctive monochrome fur pattern in zebras keep the animals cool under the hot African sun, shows a recent study.

The differences in the way the dark and light fur absorb and give off heat create refreshing currents of air that regulate the animals' temperature, the Daily Mail reported.

Scientists from the University of California in the US compared the stripes of zebras from 16 different sites with their living conditions.

A clear link was revealed between temperature and coat pattern, with zebras from the hottest areas having bodies with most stripes.

Earlier, it was thought the stripes' main function is to create an optical illusion that dazzles lions.

"It was argued that the stripes act as camouflage by making the animals harder to spot in woodland light," the scientists said.

EEE / Scientists find protein in coffee with effect like morphine
« on: January 29, 2015, 02:24:36 PM »
Researchers at the University of Brasilia (UnB) and Brazil's state-owned agriculture and livestock research company Embrapa have discovered a protein in coffee with effects similar to morphine.

Embrapa's genetics and biotechnology resources division and the UnB successfully "identified previously unknown fragments of protein -- peptides -- in coffee that have an effect similar to morphine, in other words they have an analgesic and sedative activity," a statement from Embrapa said Saturday.

Those peptides, it said, "have a positive differential: their effects last longer in experiments with laboratory mice".

The two institutions applied for patents to Brazilian regulators for the seven "opioid peptides" identified in the study.

The discovery of the molecules came about through the doctorate research work of Felipe Vinecky of the molecular biology department at UnB, who with the consultation of Embrapa was looking to combine coffee genes to improve the quality of the grain.

The study was also supported by France's Centre for International Cooperation on Agricultural Research and Development, or CIRAD.

very useful for the blind.

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