Does milk really helps strengthen bones?

Currently, the milk is synonymous with strong bones. Has long been a recommendation by most doctors to their patients. All above eight years of age shall include at least three glasses of milk in their daily diet. However, in recent years various experts began to question the true benefits of milk in the construction and maintenance of bone mass. Does milk really helps strengthen bones?

One of the main components of the milk is calcium. This mineral gives structural strength to bones and teeth and helps the human body to perform other functions such as blood clotting and the transmission of nerve impulses. Normally, the body absorbs calcium you need through diet but, if the diet is poor in this mineral, the body begins to remove calcium from the bones and teeth, making them weaker. Hence the recommendation of daily ingestion of milk or dairy products.

However, in recent years, many researchers have come to argue that milk can cause a loss of calcium in bones. The theory, known as "ashes of acid", argues that the digestion of milk produces acidic residues that make urine (and as such, the body) more acidic. To compensate for this acidification, the body will seek to alkaline mineral reserves-to neutralize the acidity â€" like calcium.

After this theory have been submitted, some scientists have tried to disprove and in 2011 argued that the hypothesis was across-the-Board and fallacious, referred to the Huffington Post. These researchers argue, for example, that the pH of urine is not indicative of body pH. Additionally, parallel studies argue that the consumption of milk makes the urine more alkaline and acid-free.

Although other parallel studies argue that the rate of bone fractures is greater in countries that consume more dairy products, research published in 2011 indicate that there are other factors influencing bone health beyond the type of diet practiced, such as physical activity, genetics and weight. In fact the higher rate of bone fractures in developed countries may be due to overweight and sedentary and not the consumption of milk.

The discussion on the ingestion of milk continues to be controversial in the scientific community. However, in General, the investigations indicate that the consumption of dairy products is beneficial to bone health, in part because of the other nutrients that make up milk beyond calcium.

Foto: Rob Ellis '/Creative Commons

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The best underwater photos of the world

Almost 8,000 photographers participated in the contest of undewaterphotography.com which, as its name indicates, the best underwater pictures in the world. The competition is divided into 17 categories â€" all to the same common denominator.

The photos that we share here were almost all worked meticulously, because the contest has a respected reputation â€" the site has a community of over 20 thousand active members, being the reference when it comes to underwater photography.

Founded by Benny Sutton in 1996, the site took off at a time when the internet was still in its infancy. Initially, it consisted mainly of images and articles of Sutton.

As the technologies and skills of Ben rose, the site has become more interactive and gained followers. The first competition of 1998 date photos â€" some of the greatest underwater photographers in the world started his career here.

Today, the underwaterphotography.com leads the information and photographs related to the underwater world. See some of the pictures, winners of this year's contest.

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Global warming can extinguish male turtles

A new study on common sea turtles of the Atlantic has been stressing the need to preserve the species, since the long-term global warming will end with one of the sexes of these animals to exist only female turtles.

We have long known that the reproduction of reptiles is rather sensitive to temperatures, leading to a variation in the ratio of males and females to hatch the eggs. For sea turtles are the key temperature 29 degrees Celsius. If the eggs develop at temperatures higher than this, the turtles that hatch will be mostly females. If temperatures exceed constantly the 30.5 degrees, one of the sexes of sea turtles can be convicted.

The short term, this higher ratio of female turtles may be beneficial, since the natural reproduction is enhanced. However, the long term may be harmful and lead to the extinction of the species.

According to Graeme Hays, professor at Deakin University and author of the study, the higher temperatures represent a "serious" threat to populations of turtles. "It will be the end of the story if there is no human intervention" indicates.

The decline in populations of turtles, powered by heating, is already being observed in the green turtles in the Caribbean and the study reveals that the number of specimens decreased by 1%.

Also the increase in the level of sea water caused by melting of ice caps, can have a negative impact on populations of sea turtles. "The increase in the level of the water results in loss of area of the beaches where the turtles lay their eggs, which can also put the species at risk," said Hays.

See a selection of photos of sea turtles.

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Foto: SNORKELINGDIVES.COM/MiguelVieira/mahinui/NathanF/jurvetson/SteFou! /Julie Lynn/Fuzzy Gerdes/todd.vision

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Overcrowding could lead to cannibalism, argues professor from Stanford

In 1968, professor Paul Ehrlich and his wife, Anne, published the book "the rising pump", a bestseller that warned for a period of great famine, in the world, in the 70 and 80, due to population growth.

The theories of Ehrlich, a professor at the respected Stanford University, eventually becoming true, especially in the poorest countries, despite all the controversy of the topic. Agoa, Ehrlich returned to the predictions, but this time more macabre.

According to the professor, the overcrowding will lead us to cannibalism and even to eat our dead.

"We will soon be asking us if we can eat the bodies of our dead, because we are all hungry," explained the charge at HuffPost. According to Ehrlich, the population growth will lead to a new food crisis, and this cannibalism.

According to Ehrlich, the scarcity of resources will be so critical that the humans will have to drastically change their eating habits and agricultural processes. "[Mankind 's] moving towards [the cannibalism] at a ridiculous speed," continued.

"In other words, between now and the next 45 years, 2.5 billion people will join the Planet. We are moving towards a resource war ", he concluded.

The issue of overcrowding was recently approached by author Dan Brown, in his book Hell, and by the Ehrlich, in his book Hope on Earth.

Photo: Vomitiva Poetry/Creative Commons

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Grândola: garbage collected by the sea will be valued

The trash collected by 200 Brigade volunteers from the sea, in the municipality of Grândola, Alentejo, is valued. This is the first time that the Association will these residues, despite the gathering takes place annually since 2009.

According to the Association, the schoolchildren, youth and senior of the parishes of Carvalhal and Melides is already proceeding with the separation of waste collected on beaches.

In the first year, the Brigade of the sea-beach cleaning project, held annually during 15 days between Troy and Melides-collected about 30 tonnes of waste. In 2010 about fifty volunteers gathered 15 tons of garbage. In the following years appeared even more volunteers, who joined enterprises, involving a total of about 500 people.

"The amount of garbage removed in the last five editions exceeds 80 tons, being notorious still result in recovery of the dunes and vegetation pioneer," explained Green Savers Cindy Santos, communication Division of the municipality of Grândola.

In recent years, the project has collected several tons of hazardous waste, of pills the corrosive liquids, oil drums, syringes or animal carcasses.

"Year after year, increase the logistical support, visibility, and the willingness to proceed with this project. The decrease in the quantity of waste collected is a sign that after all worth it believe that the difference in attitude is possible, "concluded the responsible.

Sea Brigade represents Portugal in this edition of let's Clean Europe and had already been distinguished, previously, with an honorable mention on Green Project Awards.

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Formula 1 for electric vehicles make great advertising campaign

The formula and ecological alternative to Formula 1, is looking for an advertising agency to promote the new sport worldwide, proof that the project is investing heavily to reach the masses.

According to Brand Republic, the formula and asked creative proposals to four agencies, which will have in finding an advertising strategy to make the new sport appealing to consumers and media.

Earlier this year, 10 cities will be stage of racing and formula: Beijing (China), Putrajava (Malaysia), Rio de Janeiro (Brazil), Punta del Este (Uruguay), Buenos Aires (Argentina), Los Angeles and Miami (United States), Monte Carlo (Monaco), Berlin (Germany) and London (United Kingdom).

The competition kicks off on 13 September in Beijing, and ends June 27, 2015, in London. "The formula and is a new brand of entertainment, which has the electric motor in the heart," explained Charles Davies, head of marketing of the project.

The formula and will be part of the FIA (International Automobile Federation) and was announced in 2012. The original version of the project included 10 teams and 20 pilots and was designed through a partnership with Formula and Holdings (FEH), based in London. Some of the drivers have experience of Formula 1, Jarno Trulli, Narain Karthikeyan or Nick Heidfeld.

One of the main objectives of the competition is to support the research and development of electric cars. Now, with the new campaign, the formula and expects to receive spectators and new supporters to the environmentally-friendly cars. Arrive at the formula 1 notoriety, at least in the short to medium term, it will be impossible, but the announcement of this global advertising campaign is confirmation that investors of FEH and FIA are truly betting the new sport.

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Carlos Mourao Parker recognized by architectural work for the blind

The Portuguese architect Carlos Mourao Pereira was this week awarded the Nossa Senhora da Esperança Foundation Prize of 2014, award that recognizes the "high scientific merit" from the set of his works in the area of innovative architecture for the blind and in recognition of his extensive resume as a researcher and University lecturer.

Second advanced the promoters of the initiative, quoted by the newspaper Building, for this distinction was also considered the doctoral thesis of this investigator, himself blind, about "the multi-sensory dimension of architecture â€" A qualitative approach to sea bathing space centered on invisibility".

It is, according to the jury, an investigation that globally contributes original mode for the deepening of knowledge about the problems of relationship between the sea bathing space and its use, whether for blind or low vision users, either by normovisuais users ".

Instituted in 2013, the FNSE Prize will be awarded every three years and aims to distinguish an individuality (natural or legal person) that for his thinking or action has contributed to the construction of a society that values especially respect for difference and diversity as a fundamental value of the human condition, through works, jobs and careers with cultural or scientific value of recognised merit in society.

The prize will be awarded formally in ceremony scheduled for July 20 in Castelo de Vide, where the institution has its seat and maintains its activity.

The decision was made by an independent jury, which includes such personalities as Rui Vieira Nery, Carlos Ferreira, Augusto Deodato Warrior, Francisco Sepúlveda Teixeira and José Luís Porfírio.

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