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The deterioration of the core structure not necessarily the cause of aging

Researchers from the Andalusian Centre for Developmental Biology (CABD), Joint Research Center of CSIC, the Pablo de Olavide University of Seville and the Andalusian in Spain, recently published an article in the journal Biogerontology in presenting the results of the work done in the nematode Caenorhabditis elegant, which states that although there is a correlation between the deterioration of the core structure and age of the individual, does not always happen this way, indicating that the deterioration of the core structure not necessarily the cause of aging, a widely accepted hypothesis among many scientists.

the deterioration of the core structure not necessarily the cause of aging

Understanding why and how organism’s age has been and remains one of the great challenges in biology and biomedicine. As we age our body’s many functions are altered and deteriorate, increasing the risk of diseases like diabetes, cancer or Alzheimer’s. Molecular mechanisms proposed to explain this process have been varied, including the accumulation of oxidative stress damage in various cell components, a decrease in the ability of our DNA repair or mitochondrial dysfunction that control cellular metabolism. Not much was found that a mutation in the LMNA gene, which is part of the nuclear membrane, causes a rare disease called progeria ago.

The possible detection of an exomoon

An analysis of data reveals the possible detection of an exomoon (a satellite orbiting a planet outside our solar system). The received signals are not yet clear enough to rule that detected the footprint of an interaction between a star and a planet close to her. The discovery was made by observing a fortuitous meeting (from the visual perspective of the Earth) between cosmic objects in our galaxy, which can only be provided once. Due to the unique nature of the event, will be very difficult to solve the enigma, as there will be another opportunity to observe the candidate exomoon from Earth in viewing conditions as favorable as those enjoyed on this occasion will.

the possible detection of an exomoon

Nevertheless, it is likely that more cases like this, fleeting detections moons orbiting planets outside our solar system are given. Research on which has made possible detection of this exomoon the work of a team of scientists from institutions in Japan, New Zealand and the United States, including, among others, David Bennett of the University Of Notre Dame in Indiana, United States, and has been funded by NASA. The observations were made mostly using telescopes in New Zealand and Tasmania. The technique, based on the effect of gravitational microlensing, fail casual alignments between stars.

Revolutionary cleaning oil spills and contaminant metals

Clean oil spills and contaminant metals without the cleaning treatment has toxic effects on marine life, further is a sustainable method and resulting cheap, is a challenge that has been proving insurmountable for businesses and governments worldwide. However, maybe this will change soon. A group of researchers from the University of Wisconsin-Madison in the United States is working on the development of alternative materials to conventional and greener to clean oil spills and other discharges. Goal is to find cheap materials that can also be modified so profitable, to enable them to absorb oil and other chemicals without absorbing water.

cleaning oil spills and contaminant metals

Already there have been some very good. If this line of research and development thrives as expected, and in principle there is no reason to assume that it will not, this revolutionary new technology could offer a much cheaper and sustainable way to absorb oil and other substances from the water and other areas. Aerogels, which are very porous materials and solids which are lighter, and are used for various applications, ranging from insulating functions until use as thickeners for paints, to use some components used in aerospace.

A mathematical model presents that the movement of tectonic plates is due to subduction

The operation of the interior of the Earth remains a mystery to geologists and physicists. One theory-to be confirmed although quite accepted, argues that the movement of tectonic plates is due to subduction, ie, the sinking of one plate under the other by differences in density. however, recent work led by Ana Maria Mancho, CSIC researcher and also a member of Jezebel ICMAT Curbelo, in Spain, shows examples of fluid convection indicate that the movement could occur spontaneously, the result only of the internal dynamics of the fluid and in the presence of symmetry.

a mathematical model presents an alternative to subduction to explain plate tectonics

The results suggest that the symmetry of the terrestrial sphere could be important for the formation of plaques in motion. “In our article we see that the spontaneous movement is a global solution of the system in which tremendously influences the symmetry, although in our study the symmetry is simpler than on Earth, “he said scientific. In an article published in the journal Physics of Fluids, the authors propose a model of the lithosphere on mantle convection, from analyzing the instabilities of the fluid. In these equations have found some solutions, related to the presence of symmetry, corresponding to spontaneous and fleeting movements of the plates. “Mantle to geological time scales is a fluid with properties that sometimes cannot be measured directly.

The Wiko Rainbow; a new Dual SIM Quad-Core

A new mid-range model or input reaches the Spanish market with an attractive price. We refer to Wiko Rainbow, a model that costs only 159 euros in its free version and we have as a striking feature, which goes on sale in case of different colors: black, white, blue, coral, fuchsia and yellow. As a good model of the segment that is positioned quality panel that comes into play is 720p, for a size of five inches. By the way, is the IPS panel type, so a good quality is more or less assured? Regarding the dimensions of this model, these are the ones that have: 148 x 74 x 9.3 mm, which is not bad (in terms of weight, these amounts to 167 grams).

wiko rainbow; a new dual sim quad-core

As for the fundamental components of this Wiko Rainbow, I must say that not stand out against other models on the market, but not clash. The processor is four cores running at a frequency of 1.3 GHz (it looks like it is from MediaTek and architecture Cortex-A7) and RAM is 1 GB. I mean, you need to avoid problems in day to day, but clearly cannot compete with more powerful (and expensive) devices. Other features to consider of this Wiko Rainbow to estimate its possible purchase are as follows (all of which reaffirm that belongs to the mid-range or entry):

Reached through the graphene and Samsung

Few such important advances as it could bring graphene have been carried out in the history of technology. The use of graphene not only would be a slight increase in what we now know, it would completely change the basis on which we have worked for so many years. Silicon, the material that gives its name to Silicon Valley, could become part of the past, all because of Samsung. The benefits of graphene as a material of construction are many. It is a material with a high resistance, is a material with high conductivity, and is a material that is very flexible.

reached through the graphene and samsung

It has everything you need to advance in the world of technology, except for one thing, so far was not easy or cheap to produce. We say so far because we have Samsung found a way to produce graphene on a large scale. In addition, although it is likely that this system is still more expensive to produce silicon would forever change the world of technology. The new graphene synthesis system was developed in collaboration Sungkyunkwan University. Samsung’s goal, as announced, is mass-producing graphene and market sooner.

The Samsung takes lead in the commercial manufacture of graphene

Much talk of this material as a panacea for consumer electronics and unable to see anything commercial … for now. In addition, who could have taken the lead when it comes to think of a marketing graphene? As the giant Samsung. The Koreans, through its Division Samsung Advanced Institute of Technology (SAIT) in collaboration with the Sungkyunkwan University, have succeeded in developing a system for the first time to achieve commercially viable synthesis of graphene.

the samsung takes lead in the commercial manufacture of graphene

The manufacture of this material qualities of lightness, flexibility, strength and conductivity unseen before in the world of electronics and the every day you discover something new but we could not see what he can in reality still presents the difficulty that large scale, part of the material lost its privileged qualities. When synthesized from the union of small crystals also conductivity, for electronics, declined. In addition, I had to do so the costs to levels that prevent their actual marketing.

How exactly testosterone promotes female fertility?

Testosterone has been observed popularly as the hormone of the males, the very essence of manhood. Of course, the role of testosterone is far more complex and varied than that, but also finding that has been able to promote fertility in women. Have circulated hesitates and, above all, an obvious conundrum arises; how exactly testosterone promotes female fertility? New research seems to have solved the mystery. Indeed that prevailed clarify the enigma, since several fertility clinics are starting to administer testosterone, either through a patch or gel on the skin to increase the amount of eggs produced by certain women undergoing IVF.

how exactly testosterone promotes female fertility

Also for sale without a prescription, a supplement whose consumption by the women you can increase your testosterone by the product essentially becomes testosterone within the body. All aimed at increasing the odds for these women to get pregnant by in vitro fertilization treatment. Few clinical trials support the use of testosterone administered through the skin, while others have shown that the said charge (also used to treat to slow aging and increase muscle mass) is not effective to increase pregnancy rates and birth rates in women who do not respond well to in vitro fertilization.

A levitated nanosphere with laser light temporarily violates the second law of thermodynamics

Watch a movie backwards often because grace because we know that the processes in nature are often not reversed. The physical law that explains this behavior is the second law of thermodynamics, which postulates that the entropy of a system, a measure of disorder, never decreases spontaneously. This favors the disorder-entropy-versus high-order low entropy. Yet when we move into the microscopic world of atoms and molecules, the law loses its absolute rigidity. In fact, scales nanosecond law can be violated temporarily in some rare occasions, such as heat transfer from a cold system to a warm.

a levitated nanosphere violates the second law of thermodynamics

Now a team of physicists from the Institute of Photonic Sciences (ICFO) in Barcelona (Spain), the Swiss Federal Institute of Technology Zurich (Switzerland) and the University of Vienna (Austria) has been able to accurately predict the likelihood of events that temporarily violate the second law of thermodynamics. Devised a mathematical theorem fluctuation and tested using a small glass sphere, less than 100 nm in diameter, and trapping and levitandola by laser light. In this way, it was possible to capture the nanosphere, keep levitating in place, and measure its position in three-dimensional space with extreme precision. Inside the trap, the nanosphere is kept in motion due to collisions with surrounding gas molecules.

Star complete an orbit around the pulsar in just 93 minutes

The extreme closeness of some chaotic star to a pulsar, an ultra compact stellar corpse with a density of more than a billion times that of lead, makes this star complete an orbit around the pulsar in just 93 minutes. The tug of gravitational pull between these two stars is huge, and it translates into more like a constant earthquake in much of the star. In addition, it receives “at close range”, so to speak, the high-powered pulsar radiation emissions. Only minor planets and stars do not always surround the stars. They may be close to another star, or even more dense and exotic cosmic objects, such as a pulsar. The respective gravitational fields influence the location of the center of gravity as a cosmic tug.

star complete an orbit around the pulsar in just 93 minutes

If there is a massive object and the rest are of much lower mass, as in the case of our solar system, the center of gravity is close to the center of mass of the object itself. If a star has, another of the same mass will tend to rotate around each other around a point located at an intermediate distance between them. In some cases, the stars are gravitationally attached remote from each other that hardly interact with each other. In other cases, however, are so close that its outer layers were rubbing, even at times to merge the two stars. The closer they are, it will be of greater magnitude effects caused by their mutual gravitational attraction.

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