November 22, 2016: Recycling and reusing have become very useful method for creating energy and electricity. They are not only environment-friendly but also easily available energies. We have seen cow dung being used as important energy resource for producing biogas. Recently a Mexican scientist Gabrial Luna-Sandoval has come up with a new invention whereby human urine can be used for generating electricity.
Humans pee about one and half liters a day. Gabrial’s new machine processes them and the urine gets turned into biogas which serves as a household heater to take a hot shower or can be used for cooking as well. The machine uses electrolysis and hydrogen in urine to produce biogas. This creates electricity or replaces natural gas.
According to Dr. Gabrial “15 ml urine is enough considering that we produce 1.4 liters of urine and if there are 3-4 members in family then the family can pay enough to cook”. This method of electricity generation can have far reaching consequences, it can be used for future calling use in Mars.
Even the water used for energy will not go waste, as the filtered water can be used for drinking purpose as well. These are the certain possibilities that it has.
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British researchers, on the other hand, have developed microbial fuel cells that use live bacteria that feed on to inter-generate electricity.
Argentina is not lagging behind in generating renewable energy volunteers from Sumando Inerhias are recycling the trash to create solar energy. This will help in running water power heaters. This will be a great source of relaxation for communities that lack electricity and water. Apart from creating solar energy, they are also teaching them about recycling. Thus it’s a two-fold benefit scheme for the community, as it can not only use the energy but can even actively take part in its generation.
A local resident Angel Guelari says that ‘these are things that we throw away and they contaminate the environment, we can use them for practical things like having water in the house it’s good to recycle.’ Sumando Inerhias saw an increase in its number of volunteers over the years and they hope to build solar panels for three thousand families per year now, as reported by VOA news from Washington DC.
Renewable energy is not only cleaner but also safer and less polluting technique in the generation of energy. The shortage of resources can be curbed by switching over to a renewable form of energy. Community participation plays an important role in these forms of energy. It helps in creating awareness and judicious use of resources.
London, USA, September 7, 2017: Treating young people who suffer from insomnia by using online cognitive behavioral therapy (CBT) could reduce debilitating mental health problems such as anxiety and depression, scientists said Wednesday.
In a large trial published in The Lancet Psychiatry journal, researchers at Oxford University’s Sleep and Circadian Neuroscience Institute also found that successfully treating sleep disruption eased psychotic symptoms such as hallucinations and paranoia.
“Sleep problems are very common in people with mental health disorders, but for too long insomnia has been trivialized as merely a symptom, rather than a cause, of psychological difficulties,” said Daniel Freeman, a professor of clinical psychology who led the work.
“This study turns that old idea on its head, showing that insomnia may actually be a contributory cause of mental health problems.”
The research involved 3,755 university students from across Britain who were randomized into two groups. One group had six sessions of online CBT, each lasting about 20 minutes, and delivered via a digital program called Sleepio. The others had access to standard treatments but no CBT.
Freeman’s team monitored participants’ mental health with a series of online questionnaires at zero, three, 10 and 22 weeks from the start of treatment.
The researchers found that those who had the CBT sleep treatment reduced their insomnia significantly as well as showing small but sustained reductions in paranoia and hallucinatory experiences.
The CBT also led to improvements in depression, anxiety, nightmares, psychological well-being, and daytime work and home functioning.
Andrew Welchman, head of neuroscience and mental health at the Wellcome Trust health charity, which helped fund the research, said the results suggested improving sleep may provide a promising route into early treatment to improve mental health.
Freeman added: “A good night’s sleep really can make a difference to people’s psychological health. Helping people get better sleep could be an important first step in tackling many psychological problems and emotional problems.” (VOA)
Old Mosul has been completely shattered in the battle to recapture the city from Islamic State militants
About 900,000 people have been displaced by the battle for Mosul, and many neighborhoods have been completely destroyed by war
Areas around the village are slowly being re-populated, but many places are entirely without services like trash collection, electricity, and running water
Mosul, September 5, 2017 : “All you can hear at night is the sound of broken doors flapping in the wind,” says Abd Elaam, a 50-year-old furniture maker. “Even soldiers stay indoors after dark.”
Elaam is currently one of the very few civilians living in Old Mosul, an ancient neighborhood shattered by the battle to recapture the city from Islamic State militants. Like many families that survived IS rule, he says, his resources are completely exhausted by the war and he has nowhere else to go.
Other families trickle in by day, looking to repair their broken homes or recover the bodies of their dead loved ones. But even during daylight hours, the neighborhood is dangerous, riddled with bombs and an unknown number of militants hiding out in the vast network of tunnels under the tightly-packed buildings and piles of rubble. The level of destruction has been compared to World War II Dresden.
“A IS militant came out of one those houses two weeks ago,” Elaam says, gesturing towards another dusty, broken street. “He blew himself up near two families. They were all injured and the bomber was cut in half.”
The militant’s body, like other fallen IS fighters in Old Mosul, was shoved under the rubble to reduce the smell of rot in the 45 degree-plus weather. When Iraq declared victory over IS in early July, the bodies of dead militants lay scattered in buildings and on the streets of nearly every block. Authorities searched through giant piles of concrete, once homes, for the remains of civilian families. But, they said, the only government department responsible for the IS bodies was garbage collection.
Old Mosul is far from re-establishing city services like trash pickup. There is no running water, electricity or businesses open. Yet other families are following Elaam’s lead, and plan to return to their homes as soon as possible.
“In a few days I will move back and bring my family,” says Ghanem Younis, 72, resting on a beige plastic chair in a sliver of shade. “If they provide electricity and water, everyone would come back.”
Younger men and children squat around Ghanem, recalling the isolation of the final months of the battle that began late last year. “We couldn’t go more than 50 meters from our front doors,” says Sufian, a 27-year-old unemployed construction worker. “We spent our time sitting right here with Uncle Ghanem.”
But it is not sentiment driving some families home despite the dangers, adds Elaam, as more neighbors join the conversation.
“People cannot stay with friends and relatives forever,” he says. Camps for those displaced are also crowded. “No one has anywhere else to go,” he adds.
A few blocks away, outside the checkpoints that cut off the Old City, the Zanjelli neighborhood is slowly being repopulated.
Construction workers build a market to replace one destroyed in airstrikes, while the owners of what was once a shoe store paint the shelves, hoping to re-open in the coming weeks. The wreckage from a few of the destroyed homes has been cleared away, and the bodies of many of the dead are now buried in graveyards.
In less than five minutes of conversation, at least three people tell us about family members, including toddlers, killed in airstrikes in the last months of battle.
“There was an IS sniper firing from next to my house and the airstrike hit us,” says Youseff Hussain, 35. “Fifteen members of my family were killed.”
Rebuilding the neighborhood, adds Hussain, is made doubly frustrating by the fact that it was Iraq’s allies, including the United States, who destroyed many of their homes as they battled IS from the air.
Many locals say the sacrifice of property and lives may have been necessary to prevent the city, then under siege, from total starvation. But after bearing the brunt of the war with IS, largely considered a global threat, residents say they thought the international community or the government would help them rebuild.
The only aid families here get right now, Zanjelli residents say, is Iraqi military rations, as soldiers share their food.
“There is nothing they can do to pay us back for what we have lost,” says Hussain. “But shouldn’t we at least get refunded for our property?” (VOA)
The availability of cheap natural gas and greater energy efficiency has reduced demand for nuclear energy in recent years
Nuclear power is clean, safe and better for the environment than some alternative energy sources
Industry experts say that women who work in nuclear power can be powerful advocates for nuclear
San Francisco, August 26, 2017: Kristin Zaitz is confident that her nuclear power plant is safe.
Zaitz, an engineering manager, was at Diablo Canyon Power Plant during both her pregnancies and has scuba dived to inspect the plant, which hugs the California coast. Zaitz wears a pendant with a tiny bit of uranium inside, an item that tends to invite questions.
“We all have our perceptions of nuclear,” Zaitz said.
In a few years, Diablo Canyon will close, part of a trend nationwide. The availability of cheap natural gas and greater energy efficiency has reduced demand for nuclear energy in recent years. Add to that ongoing concerns about public safety, such as those raised by memories of disasters at nuclear power plants in Fukushima, Japan, Chernobyl in Ukraine (then part of the Soviet Union) and Three Mile Island in the United States.
Nuclear is ‘cleaner’ than fossil fuels
Supporters of nuclear energy say that when a reactor-based generating station closes, not enough wind and solar power is available to make up the difference. They lament that energy companies tend to turn instead to fossil fuels — coal and natural gas — which produce environmentally harmful emissions.
Zaitz and her co-worker Heather Matteson, a reactor operator, started Mothers for Nuclear, their effort to get the word out that nuclear power is clean, safe and better for the environment than some alternative energy sources.
“I went into the plant very skeptical of nuclear and being scared of it,” said Matteson. “It took me six to seven years to really feel like this is something good for the environment. I don’t want people to take six to seven years to make that decision. We don’t have that long.”
Matteson, too, wears the uranium necklace as a conversation starter. “Nuclear is fun,” she said. Is there any radiation emitted by the pendant? “There’s slightly more than from a banana,” she conceded.
Industry experts say that women who work in nuclear power can be powerful advocates for nuclear. They can help change attitudes of other women who tend to be more skeptical than men about nuclear energy’s benefits.
At the recent U.S. Women in Nuclear conference in San Francisco, women working in the industry talked about how more should be done to make nuclear power’s case to the public, and how they may be the best suited to do it.
“As mothers, I think we also have an important role to play in letting the public know that we support nuclear for the future, for our children,” said Matteson. “And we don’t know other mothers supporting nuclear power in a vocal way. We thought there was a gap to fill.”
Young women say they look at careers in this industry because they are socially minded.
‘Do something good for the world’
“I went into this wanting to do something good for the world,” Lenka Kollar, business strategy director at NuScale, a firm in Oregon that designs and markets small modular reactors. “Wanting to bring power to people. There are still more than a billion people in the world who don’t have electricity.”
Critics of nuclear energy say it doesn’t matter who is promoting it.
“Using mothers’ voices to argue for a technology that is fundamentally dangerous and that has been demonstrated by disasters like Fukushima to be not safe for the communities that surround the power plants or even cities that are hundreds of miles away is disingenuous,” said Kendra Klein, a staff scientist with Friends of the Earth, an environmental group.
While the future of nuclear power in the United States may be uncertain, the women here say they have a positive story to tell. (VOA)