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ALZHEIMER'S NOT A NORMAL PART OF AGING AND INEVITABLE

A study of the brains of people who have mental faculties intact from the 80 years brings into question previous research. The findings, made public in the 23 th national meeting of the Chemical Society American show changes linked to the decline of Alzheimer's brain and not a normal and inevitable part of aging.





A presentation of the 23 th national meeting of the American Chemical Society (ACS, for its acronym in English), the research team led by Changiz Geula, a scientist at Northwestern University in Chicago (USA) described the existence of elderly people with a very sharp memory and aging sunset, because they do not suffer from the so-called "knots" in the brain.

The nodes consist of an abnormal form of a protein called "tau" that damages and eventually kills the nerve cells. The knots, which are named by their twisted and gnarled appearance under the microscope, increase with age and peak concentration in people with Alzheimer's disease.

"This discovery is the pioneer and its implications are enormous. We have always assumed that the accumulation of knots is a progressive phenomenon that occurs during the normal aging process, "said Geula. "But now we have evidence that some people are immune to the formation of knots."

Healthy people develop a moderate amount of nodes, whereas in people with Alzheimer's found the highest concentrations. The evidence supports the presence of nodes that can influence cognitive performance, so that people with fewer nodes have higher yields, and people with a greater number appear to be normal for his age.

The findings are based on the study of nine brains of more than 80 years with exceptional aging that results obtained on memory tasks specific to those 50 years. Brains

immune to the deterioration
Scientists found that people with outstanding aging seem to be inserted into two categories: those that are almost immune to the formation of knots and with few knots. "Knots and other deposits called plaque build up more in the brains of people with Alzheimer's disease," says the researcher.
According to experts, "a group of people with outstanding aging seems to prevent the formation of knots. Your brain is virtually clean, which does not happen in people with normal aging. The other group seems to have knots in an amount equal to or less than the normal elderly, but for some reason seems to be protected from its effects. "

The next step, in the words of Geula, is to determine the reason for this immunity. The environment, lifestyle and genetics may be key factors. For example, people with exceptional aging may have a genetic predisposition for it, while others may retain their mental function through a healthy diet or to continue being physically or mentally active.

"The chemistry, ultimately, is one of the keys to understanding what causes them to form the knots. If we understand the anatomical, pathological and molecular studies of the brain with higher yields, we could protect normal brains against memory loss associated with age, "concludes Geula.

Source: SINC

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Reviewing

The page with the information necessary to perform the work from home is:


Noise and sound

If want to access from the center:

Webquest

A couple of illustrative videos

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BILL OF SCIENCE, TECHNOLOGY AND INNOVATION

Last May 7, the Council of Ministers approved the draft Law on Science, Technology and Innovation, which has been referred to the House of Representatives for its passage through Parliament as draft Law
can be downloaded here in pdf format .
Source: MICINN

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THE CLOSURE OF MEDIA FOR SCIENCE FORUM "


A week ago, which ended a wonderful and interesting conference. I can not resist
copy the last post of your blog.


The conference comes to an end and was expected to talk about conclusions, but Miguel Ángel Quintanilla, director of the Institute ECYT the University of Salamanca, has preferred to raise more "reflections" to be on the web for Internet users can be completed in the coming weeks. Quintanilla

raised that to someone like him, who is neither a journalist nor a scientist, in a conference like this. The solution came to him yesterday when Hanns-Joachim Neubert, president of the European Union of Science Journalists Associations (EUSJA), were also needed commented that "philosophers." He is.

The former Secretary of State for Universities and Research has reviewed the topics discussed during Media for Science, and stressed the need to "renew the great partnership between government, media and scientists." Has given 10 recommendations or facts that should be encouraged:

1. Public support of governments
2. Open Publishing
3. Communication technology (interactivity)
4. Science in mass media and new media
5. Local production of global science
6. Science journalism (honest and professional)
7. Training programs for journalists and scientists
8. Research in science communication
9. Effort in communicating the scientific community
10. Scientific institutions with trained personnel

This afternoon also intervened Predazzi Enrico, who recalled the three levels of communication of scientists to society: a scientist to scientist, scientific professional journalist, and scientists to the general public. At all three levels must continue improving the relationship and communication, according to the expert. As President of ESOF 2010, Predazzi has invited all participants to attend the European Forum of Science Open to be held in the Italian city of Turin between 2 and 7 July. Full details here .

For his part, José Manuel Silva Rodríguez, Director General of Research of the European Commission, stressed that science is not just for specialists, "but must be understood by all ", so we must strive to make society better understand scientific issues and be more involved. Perhaps we should change the way we communicate the achievements, but the fact is that "we must do more and be ambitious programs."

The Director pointed out that it is necessary to raise the status of science journalism. "That science and technology come to fruition, but they reach the people", society in general, not to mention the business. The initiatives of the Seventh Framework Programme of the European Union, the European Space Research and the European Strategy 2020 also are aimed in that direction, European company to get a more educated, more democratic and more sustainable.

Although it was planned closing ceremony by the Secretary of State for Research, Philippe Petriz, has replaced Juan Tomás Hernani, Secretary General of Innovation, Ministry of Science and Innovation (MICINN), a ministry "absolutely committed to science and communication. " Hernani has highlighted the role of FECYT, organizer of the congress in this regard.

also been compared to the same innovation that speaks of "bringing the client to the white coats from the beginning," just as we must "change league and encourage communication between journalism, scientific developments and the public from the first minute. " "Communicating science and innovation is a task that must be shared among everyone," concluded the Secretary General.

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CREATED THE FIRST CELL GENOME CONTROLLED BY A SYNTHETIC



Institute scientists J. Craig Venter in the U.S. have gotten a synthetic genome, created for themselves by chemical synthesis, controls the functions of a bacterial cell. Researchers have replaced the genome of the bacterium Mycoplasma capricolum by another synthetic sequence of Mycoplasma mycoides species, so that the former has begun to act self-replicating as the second. This development can help solve energy and environmental problems.

"We created a 'synthetic cell' as it is controlled by a genome assembly with chemically synthesized DNA fragments," he told SINC Daniel Gibson, J. Institute investigator Craig Venter of the U.S.. Scientists of the Foundation presented today in the journal Science to the bacterium Mycoplasma mycoides JCVI-syn1.0 ', the first cell controlled by a synthetic genome.

The team had already achieved on the one hand, and copy chemically synthesize a bacterial genome, and secondly, transplanted the genome of one bacterium to another. What they have achieved now is to bring the two approaches: first synthesized the genome of Mycoplasma mycoides and then transplanted to Mycoplasma capricolum, which is drawn from his own.
The new genome able to "extract" or activate the receptor cell to produce proteins and self-replicate and M. mycoides. Thus emerged JCVI-syn1.0 Mycoplasma mycoides, "which can not be considered a new species or subspecies because it is very similar to the natural," says Gibson. "As the DNA software builds its own hardware, we expect that the properties of the cells controlled by the synthetic genome are the same as it would if the entire cell been produced synthetically. "

The synthetic genome is a copy of the original except for 14 genes. The researcher explains that two is disrupted during the process, "but the other twelve were deleted or intentionally altered, ten of them to form four sequences that act as 'watermarks' to differentiate the synthetic genome from life, and replace the genes we knew we were not essential for viability. "

Scientists refer to the resulting cells as 'synthetic', but really is synthetic genome. Gilbson clear that, while the cytoplasm of the recipient cell is not synthetic "After transplanting and replicate it on a plate to form a colony, the progeny will not contain any proteins that were present in the original host cell."

energy and environmental applications
For now, scientists have modeled the genome of M. mycoides, but in future they would like to develop more original and create bacteria capable of performing specific tasks to help solve problems such as energy, with fuel production, or the environment, using microorganisms to clean up contaminated environments.
"We learned a lot with this proof of concept experiment and are now ready to build different bodies, "says Gibson. "For example, we would use the sequence information available and create cells that produce energy, pharmaceuticals, industrial compounds, or allowing sequester carbon dioxide."

Researchers also hope that the method developed ways to better understand the basic mechanisms that drive life. "We have already begun working with the ultimate goal of synthesizing a minimal cell, with only the machinery necessary for independent living," said the scientist.

"Now we are able to synthesize a cell of a synthetic genome, we can test its functionality. We must reduce the synthetic genome and repeat the experiments in transplantation until no more genes can be deleted, and the genome is as small as possible. This will help us understand the function of each gene in a cell and what DNA is required to sustain the more simple lifestyle, "he continues.

The study points out that if the methods described can be generalized, "the design, synthesis, assembly and synthetic chromosomes transplantation will no longer be an obstacle to the progress of synthetic biology, and is expected The costs of the procedures will become cheaper and automatic. MPLICATIONS

ethical I
The authors also refer to the publication of the ethical implications of this advance in biology: "The ethical arguments concerning the synthesis of life we \u200b\u200bhave them from the earliest stages of the study. As will extend the applications of synthetic genomics, we anticipate that this work will continue to raise philosophical issues with social and ethical implications. We encourage the ongoing dialogue. "

"Any new area of \u200b\u200bscience or technology can be used to positive ends (in the If synthetic genomics: new biofuels, new vaccines and medicines, drinking water ...) or can be used in a negative way, "Gibson raises.

"From the first day of the research program to create synthetic cell, for almost 15 years we have worked hard to establish a dialogue with experts in bioethics, the governments of the U.S. and other countries, members of Congress, educators students and the media. This area of \u200b\u200bscience has been analyzed in detail and we believe has great potential for the good of society if used wisely. We intend to be leaders in making this a reality " concludes.

Source: SINC

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To work on this subject can choose uses of radiation and / or problems.

Addresses that I propose are not mandatory, you can find others.

What you can not do this time is to use an encyclopedia without extending to any item.

work You'll have to add your personal opinion and sources of information used. I commented

each link in the title:

Using thallium stress tests for heart

to decontaminate food Ultraviolet

Tracking birds using isotopes

Study water isotope

Radioactivity, radiation and uses

radiation medicine

radiation hazards



choose what I call the attention and a chance to learn.

's no use copying without understanding, I would prefer more short and you understand.

I remember I read the papers, so when you read it acabéis before sending it to me.

And now some examples of uses of radiation:

In criminology, for the cause of death

In cartoons, as an energy source and sponsor of sports teams

Last Friday

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AGENDA CITIZEN OF SCIENCE AND INNOVATION

On April 22 began the process of participation in Agenda Citizen Science and Innovation, sponsored by the FECYT (English Foundation for Science and Technology) during the presidency English European Union during the first half of 2010.

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Radiation Chemistry Olympiad COMPETITION NAUTILUS

held the second contest of Science and Technology NAUTILUS.

As you know our school participated in various modalities, and how could it be otherwise for the work of students and teachers, get some prizes.

mode in Science and Technology for high school students we get a 2 nd prize, something discussed by our participants to the House tow.

no doubt that these girls had taken a picture if it had flown the helicopter



In the Multimedia section of the presentation on ESO INVERTEBRATES DID a worthy second prize, taking into account that are 1 º ESO students and compete with up to 4 º ESO



In this same category, after solving a small registration error was achieved FIRST PRIZE with FRUIT FLY


Soon we will be delighted with the award-winning multimedia documents

Finally in category SUSTAINABILITY AND RECYCLING got the first and second prize LIBRARY AND ORGANIC GREEN ROOF, respectively




Great work on carbon dioxide fixation by plants

Superb exposure of possibility for a green roof on the library

If you miss Miguel and "someone "asleep

addition, other groups came to the end without much luck but with effort, which is what counts.





PS: the photos are those that have happened to me if you have better let me go.

was missing, did the CEO and ran so much.

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Last weekend saw the national phase of the Chemistry Olympiad in Seville.

It had a representative of our center

Sanjuan Lucas Riera got an excellent score that led him to receive a silver medal. Here

classification

To come to this stage Luke had to be submitted to the local stage in Almeria, where the winner.

Congratulations Lucas

We also congratulate their coach Francisco Carmona and his teacher Marisa Sanchez, who have had something to do in this success.




For anyone would like to know the evidence (especially for those who are thinking: "If I go I leave the tests ...") resolved:

Problems Questions

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Pressing note note

The proposal to round up the rating of the item gives you a choice:

- Surface tension
that can relate to insects can float in the water (in this case is metal) or even bugs even heavier as the basilisk.

- meteorological phenomena of

child and girls.

Two weather events that affect the American continent.

will see that science can explain many things.

If you are interested in the theme look for the theory of new ice due to the weakening of the Gulf Stream. You can see an interesting documentary about

issued by TVE
Here is a simple explanation of the two kids on video.



In this case the work is more open, just give you a video, to seek vosotr info @ s.

Conditions:

• Two faces like waaaaay
• With photos and / or video and / or presentations
• pages indicating where you derive
• information including a personal opinion

Free Redhot Freeview 2010

Want more?

For those who always want more I suggest a couple of songs

work for what you can do up note on the carbon cycle and the greenhouse effect

If you choose the carbon cycle using the information in the book (page 89) and these links



cycle wikipedia

If you choose the greenhouse effect can take advantage of these pages:



Energy Climate Change

wikipedia

Lentiscal (click on A5 for explanation)

not forget:

- A face

per person - Compulsory

personal opinion - Best if you command as a comment and less and save paper and ink

- No escribáis without knowing what you put, shorter and better understanding it