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Latest Technology http://latesttechnology.space Sun, 26 Mar 2017 19:39:26 +0000 en-US hourly 1 http://wordpress.org/?v=4.3.4 Clock stars: Astrocytes keep time for brain, behavior http://latesttechnology.space/clock-stars-astrocytes-keep-time-for-brain-behavior/ http://latesttechnology.space/clock-stars-astrocytes-keep-time-for-brain-behavior/#comments Sun, 26 Mar 2017 19:39:26 +0000 http://latesttechnology.space/clock-stars-astrocytes-keep-time-for-brain-behavior/ In this SCN slice, cells expressing an astrocyte-specific constructional protein that had been stained red (top right panel) matched adult good with cells that had been versed to fluoresce immature when they were expressing a time gene (middle right panel), demonstrating that a scientists could watch astrocytes parasite in a biological clock. Credit: Herzog lab.

Star-shaped cells around neurons infer to be surprisingly critical players in body’s clock

Until recently, work on biological clocks that foreordain daily fluctuations in many physique functions, including core physique heat and alertness, focused on neurons, those electrically irascible cells that are a divas of a executive shaken system.

Asked to conclude a body’s master clock, biologists would contend it is dual little spheres — a suprachiasmatic nuclei, or SCN — in a mind that include of 20,000 neurons. They approaching wouldn’t even discuss a 6,000 astroglia churned in with a neurons, pronounced Erik Herzog, a neuroscientist in Arts Sciences during Washington University in St. Louis. In a Mar 23 allege online announcement from Current Biology, Herzog and his collaborators uncover that a astroglia assistance to set a gait of a SCN to report a mouse’s day.

To manipulate a astrocytes in a SCN exclusively of neurons, a scientists indispensable a approach to aim a astrocytes alone. The pivotal incited out to a constructional protein that helps to give astrocytes their branching structure, here related to a protein that fluoresces green. Credit: LPDWiki.

The astroglia, or astrocytes, were upheld over in overpower partly since they weren’t deliberate to be important. Often called “support cells,” they were ostensible to be opening fillers or place holders. Their Latin name, after all, means “starry glue.”

Then dual things happened. Scientists detected that roughly all a cells in a physique keep time, with a few exceptions such as branch cells. And they also began to comprehend that a astrocytes do a lot some-more than they had thought. Among other things, they hide and slurp neurotransmitters and assistance neurons form strengthened synapses to connect what we’ve learned. In fact, scientists began to pronounce of a tripartite synapse, emphasizing a purpose of an astrocyte in a communication between dual neurons.

So for a neuroscientist like Herzog, a apparent doubt was: What were a astrocytes doing in a SCN? Were they gripping time? And if they were gripping time, how did a astrocyte clocks correlate with a neuron clocks?
Herzog answered a initial doubt in 2005 — yes, astrocytes have daily clocks — though afterwards a investigate got stuck. To figure out what a astrocytes were doing in vital networks of cells and in vital animals, a scientists had to be means to manipulate them exclusively of a neurons with that they are entwined. The collection to do this simply didn’t exist.

Now, Herzog’s connoisseur tyro Matt Tso, a initial author on a paper, has solved a problem. The collection he devised concede astrocytes in a SCN to be exclusively controlled. Using his toolkit, a lab ran dual experiments, altering a astrocyte clocks and monitoring a rarely ritualized, daily duty of wheel-running in mice.

The scientists were astounded by a results, to be published in a Apr 7 imitation emanate of Current Biology. In both experiments, tweaks to a astrocyte clocks reliably slowed a mouse’s clarity of time. “We had no thought they would be that influential,” Tso said.

The scientists are already formulation follow-up experiments.

Figuring out how and where these clocks duty in a mind and physique is critical since their change is ubiquitous. For his part, Herzog is already looking during a connectors between circadian stroke and mind cancer, pre-term birth, manic basin and other diseases.

Astrocytes time in

A biological time is a array of interlocking reactions that act rather like a biochemical hourglass. An accumulating protein eventually shuts down a possess production, most as a silt eventually drains from a tip half of a hourglass. But afterwards –through a sorcery of feedback loops — a biochemical hourglass, in effect, turns itself over and starts again.

At first, scientists were wakeful usually of a time in a SCN. If it is broken in an animal such as a rat, a rodent will nap for a same volume of time though in fits and starts instead of for prolonged periods.

But afterwards a genes that make adult a biological time began to be found in many opposite kinds of cells: lung, heart, liver, and sperm. Hair cells, by a way, cite to grow in a evening.

So Herzog began to consternation about astrocytes in a SCN. Were they, too, gripping time?

To find out, he joined a bioluminescent protein to a time gene and afterwards removed astrocytes in a potion dish. He found that a astrocytes brightened and dimmed rhythmically, explanation that they were gripping time.

The apparent subsequent step was to demeanour during a astrocytes not usually in a potion plate though also in SCN slices and in vital animals. But that incited out to be easier pronounced than done. “We burnt by dual postdocs perplexing to get these experiments to work,” Herzog said.

So it is a technical delight that Tso was means to make a astrocytes light adult when they were expressing time genes and to supplement or undo time genes in a astrocytes while withdrawal a neurons intact, Herzog said.

As a initial step, co-operator Michihiro Mieda from Kanazawa University combined a “conditional reporter” that switched on a firefly luciferase whenever a time gene was being voiced in a dungeon of interest. Tso delivered a little switch to a astrocytes inside a virus.

In slices of a rodent SCN with this contributor in place, a scientists could see that a star-shaped cells were expressing a time gene in a rhythmic pattern. This valid that astrocytes keep time in vital hankie where they are interacting with one another and with neurons, as good as when they are removed in a dish.

Next, a scientists used a new gene-editing apparatus CRISPR-Cas9 to undo a time gene in usually a astrocytes of a SCN of vital mice. They afterwards monitored a mice for changes in a time they started using on a circle any day.

Running is an simply totalled duty that provides a arguable denote of a state of a underlying physique clock. A rodent in consistent dark will start using on a circle approximately each 23.7 hours, typically devious by reduction than 10 mins from this schedule.

“When we deleted a gene in a astrocytes, we had good reason to envision a stroke would sojourn unchanged,” Tso said. “When people deleted this time gene in neurons, a animals totally mislaid rhythm, that suggests that a neurons are required to means a daily rhythm.”

Instead, when astrocyte time was deleted, a SCN time ran slower. The mice climbed into their wheels one hour after than common each day.

“This was utterly a surprise,” Tso said.

The formula of a subsequent examination were even some-more sparkling for them. The scientists began with a rodent that has a turn creation a clocks run quick and afterwards “rescued” this turn in astrocytes though not in neurons. This meant that a astrocyte clocks were using during a normal gait though a neuron clocks were still fast.

“We approaching a SCN to follow a neurons’ pace. There are 10 times some-more neurons in a SCN than astrocytes. Why would a duty follow a astrocytes’? ” Tso said.

But that is accurately what they did. The mice with a easy astrocyte clocks climbed into their wheels dual hours after than mice whose astrocytes and neurons were both fast-paced.

The scientists don’t know because a astrocytes are so critical or how they are communicating with neurons. But their investigate adds to a physique of work suggesting that astrocytes, distant from being place holders or opening fillers, might indeed be using a show. It wouldn’t be a initial time a energy was behind rather than on a throne.

Source: WUSTL

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Surprising law-breaker in haughtiness dungeon repairs identified http://latesttechnology.space/surprising-culprit-in-nerve-cell-damage-identified/ http://latesttechnology.space/surprising-culprit-in-nerve-cell-damage-identified/#comments Sun, 26 Mar 2017 19:39:25 +0000 http://latesttechnology.space/surprising-culprit-in-nerve-cell-damage-identified/ Nerve axons (left) offer as a electrical wiring of a shaken system. Scientists have concerned a specific proton in triggering a self-destruct module in axons that leads to their lapse (right). Since axonal lapse is a common thread in many neurodegenerative diseases, including marginal neuropathy, researchers are seeking ways to retard it. Both images uncover rodent axons. Yellow and immature tone combined for clarity.

Findings advise ways to retard haughtiness dungeon repairs in neurodegenerative diseases

In many neurodegenerative conditions — Parkinson’s disease, amyotrophic parallel sclerosis (ALS) and marginal neuropathy among them — an early forsake is a detriment of axons, a wiring of a shaken system. When axons are lost, haughtiness cells can’t promulgate as they should, and shaken complement duty is impaired. In marginal neuropathy in particular, and maybe other diseases, ill axons trigger a self-destruct program.

In new research, scientists during Washington University School of Medicine in St. Louis have concerned a specific proton in a self-destruction of axons. Understanding usually how that repairs occurs competence assistance researchers find a approach to hindrance it.

The investigate is published Mar 22 in a biography Neuron.

“Axons mangle down in a lot of neurodegenerative diseases,” pronounced comparison author Jeffrey D. Milbrandt, MD, PhD, a James S. McDonnell Professor and conduct of a Department of Genetics. “Despite a fact these diseases have opposite causes, they are all expected secure in a same pathway that triggers axon degeneration. If we could find a approach to retard a pathway, it could be profitable for many opposite kinds of patients.”

Since a molecular pathway that leads to detriment of axons appears to do some-more mistreat than good, it’s not transparent what purpose this self-destruct resource plays in normal life. But scientists think that if a pathway that destroys axons could be paused or halted, it would delayed or forestall a light detriment of shaken complement duty and a debilitating symptoms that result. One such condition, marginal neuropathy, affects about 20 million people in a United States. It mostly develops following chemotherapy or from haughtiness repairs compared with diabetes, and can means determined pain, burning, stinging, itching, insensibility and flesh weakness.

“Peripheral neuropathy is by distant a many common neurodegenerative disease,” pronounced co-author Aaron DiAntonio, MD, PhD, a Alan A. and Edith L. Wolff Professor of Developmental Biology. “Patients don’t die from it, though it has a outrageous impact on peculiarity of life.”

In prior studies, Stefanie Geisler, MD, an partner highbrow of neurology, operative with DiAntonio and Milbrandt, showed that restraint this axon self-destruction pathway prevented a growth of marginal neuropathy in mice treated with a chemotherapy representative vincristine. The wish is that if methods are grown to retard this pathway in people, afterwards it competence be probable to delayed or forestall a growth of neuropathy in patients.

Toward that end, a Milbrandt and DiAntonio labs showed that a proton called SARM1 is a executive actor in a self-destruct pathway of axons. In healthy neurons, SARM1 is benefaction though inactive. For reasons that are unclear, damage or illness activate SARM1, that sets off a array of events that drains a pivotal mobile fuel — called nicotinamide adenine dinucleotide (NAD) — and leads to drop of a axon. Though a researchers formerly had shown SARM1 was compulsory for this sequence of events to play out, a sum of a routine were unknown.

SARM1 and identical molecules — those containing what are called TIR domains — many mostly are complicated in a context of immunity, where these domains offer as scaffolds. Essentially, TIR domains yield a breakwater for a public of molecules or proteins to perform their work.

The researchers had insincere that SARM1 acted as a skeleton to yield support for a work of destroying axons, commencement with a fast detriment of mobile fuel that occurs mins after SARM1 becomes active. The scientists set about acid for a dispersion organisation — a active proton or molecules that use a SARM1 skeleton to lift out a demolition. The study’s initial author, Kow A. Essuman, a Howard Hughes Medical Institute Medical Research Fellow and an MD/PhD tyro in Milbrandt’s lab, achieved a litany of mobile and biochemical experiments acid for a dispersion organisation and came adult empty.

“We achieved mixed experiments though could not brand molecules that are traditionally famous to devour NAD,” Essuman said.

But as a final resort, a investigators tested SARM1 itself. To their good surprise, they found it was doing some-more than simply providing a pacifist platform. Specifically, a researchers showed SARM1’s TIR domain acts as an enzyme, a proton that carries out biochemical reactions, in this box destroying axons by initial blazing all their NAD mobile fuel.

“There are some-more than 1,000 papers describing a duty of proteins containing TIR domains,” DiAntonio said. “No one had ever shown that this form of proton could be an enzyme. So we went into a experiments presumption SARM1 was usually a skeleton and that there contingency be some other enzyme obliged for dispersion of a axon. We radically searched for a dispersion crew, usually to learn that a skeleton itself is destroying a structure. It’s a final thing we would expect.”

The commentary advise molecules identical to SARM1 — those with TIR domains and famous to offer as scaffolds in a defence complement — competence infer to have additional functions that go over their constructional roles. The investigate also invites a hunt for drugs that retard a SARM1 enzyme from triggering axonal destruction.

Source: WUSTL

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Scientists get closer demeanour during vital haughtiness synapses http://latesttechnology.space/scientists-get-closer-look-at-living-nerve-synapses/ http://latesttechnology.space/scientists-get-closer-look-at-living-nerve-synapses/#comments Sun, 26 Mar 2017 19:39:24 +0000 http://latesttechnology.space/scientists-get-closer-look-at-living-nerve-synapses/ Using a custom-built microscope, scientists have achieved a closest perspective nonetheless of operative haughtiness synapses, a junctions between neurons that oversee how these cells communicate. The researchers have been means to grasp even closer looks than shown, however this picture shows mixed operative haughtiness synapses.

Custom-built microscope reveals sum of how neurons communicate

The mind hosts an unusually formidable network of companion haughtiness cells that are constantly exchanging electrical and chemical signals during speeds formidable to comprehend. Now, scientists during Washington University School of Medicine in St. Louis news they have been means to grasp — with a custom-built microscope — a closest perspective nonetheless of critical haughtiness synapses.

Understanding a minute workings of a synapse — a connection between neurons that oversee how these cells promulgate with any other — is critical for displaying mind networks and bargain how diseases as different as depression, Alzheimer’s or schizophrenia competence impact mind function, according to a researchers.

The investigate is published Mar 23 in a biography Neuron.

Studying active rodent neurons, even those flourishing in a dish, is a plea since they are so small. Further, they move, creation it formidable to keep them in concentration during high magnifications underneath a light microscope.

“Synapses are small nanoscale machines that broadcast information,” pronounced comparison author Vitaly A. Klyachko, PhD, an associate highbrow of dungeon biology and physiology during a School of Medicine. “They’re really formidable to investigate since their scale is next what required light microscopes can resolve. So what is duty in a active section of a synapse looks like a blur.

“To pill this, a custom-built microscope has a really supportive camera and is intensely fast during physique temperatures, though many of a newness comes from a research of a images,” he added. “Our proceed gives us a ability to solve events in a synapse with high precision.”

Until now, close-up views of a active section have been supposing by nucleus microscopes. While charity resolutions of small tens of nanometers — about 1,000 times thinner than a tellurian hair and smaller — nucleus microscopes can’t perspective critical cells. To withstand barrage by electrons, samples contingency be bound in an glue creosote or peep frozen, cut into intensely skinny slices and coated in a covering of steel atoms.

“Most of what we know about a active section is from surreptitious studies, including pleasing nucleus microscopy images,” pronounced Klyachko, also an associate highbrow of biomedical engineering during a School of Engineering Applied Science. “But these are immobile pictures. We wanted to rise a approach to see a synapse function.”

A synapse consists of a small opening between dual nerves, with one haughtiness portion as a conductor and a other as a receiver. When promulgation signals, a transmitting side of a synapse releases small packages of neurotransmitters, that span a opening and connect to receptors on a receiving side, completing a information relay. On a transmitting side of a synapse a neurotransmitters during a active section are finished into synaptic vesicles.

“One of a many elemental questions is: Are there many places during a active section where a sac can recover a neurotransmitters into a gap, or is there usually one?” Klyachko said. “A lot of surreptitious measurements suggested there competence be usually one, or maybe dual to three, during most.”

In other words, if a active section could be compared to a showering head, a doubt would be either it functions some-more as a singular jet or as a sleet shower.

Klyachko and initial author Dario Maschi, PhD, a postdoctoral researcher, showed that a active section is some-more of a sleet shower. But it’s not a pointless shower; there are about 10 locations dotted opposite a active section that are reused too mostly to be left to chance. They also found there is a extent to how fast these sites can be reused — about 100 milliseconds contingency pass before an particular site can be used again. And during aloft rates of sac release, a site use tends to pierce from a core to a periphery of a active zone.

“Neurons mostly glow during 50 to 100 times per second, so it creates clarity to have mixed sites,” Klyachko said. “If one site has only been used, a active section can still be transmitting signals by a other sites.

“We’re investigate a many simple machine of a brain,” he added. “Our information advise these machines are intensely fine-tuned — even pointed modulations competence lead to disease. But before we can investigate disease, we need to know how healthy synapses work.”

Source: WUSTL

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Study shows intensity of branch dungeon therapy to correct lung damage http://latesttechnology.space/study-shows-potential-of-stem-cell-therapy-to-repair-lung-damage/ http://latesttechnology.space/study-shows-potential-of-stem-cell-therapy-to-repair-lung-damage/#comments Sun, 26 Mar 2017 19:39:21 +0000 http://latesttechnology.space/study-shows-potential-of-stem-cell-therapy-to-repair-lung-damage/ A new investigate has found that branch dungeon therapy can revoke lung inflammation in an animal indication of ongoing opposed pulmonary illness (COPD) and cystic fibrosis. Although, still during a pre-clinical stage, these commentary have critical intensity implications for a destiny diagnosis of patients.

The commentary were presented in Estoril, Portugal now (25 March, 2017) during a European Respiratory Society’s Lung Science Conference.

Lung repairs caused by ongoing inflammation in conditions such as COPD and cystic fibrosis, leads to reduced lung duty and eventually respiratory failure. Mesenchymal branch dungeon (MSC) therapy is now being investigated as a earnest healing proceed for a series of incurable, degenerative lung diseases. However, there is still singular information on a brief and long-term effects of administering branch dungeon therapy in ongoing respiratory disease.

The new investigate investigated a efficacy of MSC therapy in a rodent indication of ongoing inflammatory lung disease, that reflects some of a essential facilities of diseases such as COPD and cystic fibrosis.

Researchers delivered branch cells intravenously to ?-ENaC overexpressing mice during 4 and 6 weeks of age, before collecting samples hankie and cells from a lungs during 8 weeks. They compared these commentary to a control organisation that did not accept a MSC therapy.

The formula showed that inflammation was significantly reduced in a organisation receiving MSC therapy. Cells depends for both monocytic cells and neutrophils, both signs of inflammation, were significantly reduced after MSC therapy. Analysis of lung hankie suggested a rebate in a meant linear prevent and other measures of lung drop in MSC treated mice. As good as shortening inflammation in a lung, MSC therapy also resulted in poignant improvements in lung structure, suggesting that this form of diagnosis has a intensity to correct a shop-worn lung.

Dr Declan Doherty, from Queens University Belfast, UK, commented: “These rough commentary denote a intensity efficacy of MSC diagnosis as a means of correct a repairs caused by ongoing lung diseases such as COPD. The ability to negate inflammation in a lungs by utilising a total anti-inflammatory and reparative properties of MSCs could potentially revoke a inflammatory response in people with ongoing lung illness while also restoring lung duty in these patients. Although serve investigate is indispensable to urge a bargain of how MSCs correct this damage, these commentary advise a earnest purpose for MSC therapy in treating patients with ongoing lung disease.

Professor Rachel Chambers, ERS Conferences and Research Seminars Director, commented: This paper offers novel formula in a pre-clinical indication that demonstrates a intensity of MSC branch dungeon therapy for a diagnosis of long-term lung conditions with sparkling intensity implications for a destiny diagnosis of patients with COPD and cystic fibrosis. Although, still during an early theatre in terms of interpretation to a tellurian illness situation, this paper is one of many cutting-edge abstracts from a Lung Science Conference, that aims to yield an general height to prominence novel initial lung investigate with healing potential. We rest on high peculiarity simple and translational respiratory science, such as these latest findings, to rise novel healing approaches for a millions of patients pang from harmful and mostly deadly respiratory conditions.

Source: ERS

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New gene detected compared with Tau, a common form of mind pathology http://latesttechnology.space/new-gene-discovered-associated-with-tau-a-common-form-of-brain-pathology/ http://latesttechnology.space/new-gene-discovered-associated-with-tau-a-common-form-of-brain-pathology/#comments Sun, 26 Mar 2017 19:39:17 +0000 http://latesttechnology.space/new-gene-discovered-associated-with-tau-a-common-form-of-brain-pathology/ Tau pathology might be some-more closely connected to detriment of mind duty with advancing age

Investigators during Rush University Medical Center and a Brigham and Women’s Hospital in Boston reported a find of a new gene that is compared with ionization to a common form of mind pathology called Tau that accumulates in several opposite conditions, including Alzheimer’s disease, certain forms of insanity and Parkinsonian syndromes as good as ongoing dire encephalopathy that occurs with steady conduct injuries.

Published in Molecular Psychiatry, a publishing describes a marker and validation of a genetic various within a protein tyrosine phosphatase receptor-type delta (PTPRD) gene.

“Aging leads to a accumulation of many opposite pathologies in a brain,” pronounced co-principal questioner Dr. David Bennett who leads a Alzheimer Disease Center during Rush. “One of a many common forms of pathology is a neurofibrillary mixed (NFT) that was during a core of a study,” he said. “The NFT is suspicion to be some-more closely associated to memory decrease than other forms of aging-related pathologies, though there are still really few genes that have been concerned in a accumulation of this pivotal underline of Alzheimer’s illness and other mind diseases.”

Using autopsies from 909 people participating in studies of aging formed during Rush University, a group of investigators assessed a tellurian genome for justification that a genetic various could impact NFT. Lead author Dr. Lori Chibnik of Brigham and Women’s Hospital pronounced that “The various that we detected is common: many people have one or dual copies of a chronicle of a gene that is associated to accumulating some-more pathology as we get older. Interestingly, tangles can amass by several opposite mechanisms, and a various that we detected appears to impact some-more than one of these mechanisms.”

The reported formula offer an critical new lead as a margin of neurodegeneration searches for strong novel targets for drug development. This is generally loyal given a new unsatisfactory formula in Alzheimer’s illness trials targeting amyloid, a other vital form of pathology associated to Alzheimer’s disease.

Tau pathology is some-more closely connected to detriment of mind duty with advancing age and might be some-more impactful as a target. The appearance of new techniques to magnitude Tau in a smarts of vital people with atom glimmer tomography offers a biomarker for therapies targeting Tau. Dr. De Jager, co-principal questioner during Brigham and Women’s Hospital notes, “This investigate is an critical initial step. However, a outcome needs serve validation, and a resource by that a PTPRD gene and a various that we have detected minister to a accumulation of NFT stays elusive. Other studies in mice and flies implicate PTPRD in memory dysfunction and worsening of Tau pathology, suggesting that altering a turn of PTPRD activity could be useful in shortening an individual’s weight of Tau pathology.”

Tau pathology is one of a defining facilities of Alzheimer disease, that is a many common form of insanity in comparison age. While symptomatic treatments exist, there are now no surety therapies. PTPRD is an intriguing new claimant that deserves serve analysis in a hunt for Alzheimer’s illness therapies.

Source: Rush University Medical

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Hydrogen from ‘reverse fuel’ cells http://latesttechnology.space/hydrogen-from-reverse-fuel-cells/ http://latesttechnology.space/hydrogen-from-reverse-fuel-cells/#comments Sun, 26 Mar 2017 07:39:31 +0000 http://latesttechnology.space/hydrogen-from-reverse-fuel-cells/ Upgrading biogas to healthy gas—methane—requires hydrogen. However, this supposed methanization routine generates feverishness as a by-product. And feverishness is compulsory to furnish hydrogen by means of electrolysis. Therefore, methanization ties in good with electrolytic prolongation of hydrogen.

“The methanization routine in that biogas is upgraded to methane gives off a lot of heat. So when methanization and electrolysis start simultaneously, a feverishness from a methanization plant can be used to beget a steam indispensable in a electrolysis plant. Things fit together perfectly,” explains Søren Primdahl, General Manager in a New Business RD dialect during Haldor Topsøe.

Haldor Topsøe has now accurate a record during a proof plant related to a biogas plant in Jutland. The plant upgrades 10 m3 of biogas per hour to safeguard a gas is of during slightest a same peculiarity as healthy gas.

Similar to fuel cells

The electrolytic cells are constructed by Haldor Topsøe in Lyngby, where a now divested auxiliary Topsoe Fuel Cell A/S, that constructed fuel cells, was located. This is no coincidence. Initially, a block ceramic cells used for electrolysis demeanour totally like plain fuel cells. A microscope is indispensable to see a differences.

“Electrolytic cells and fuel cells are roughly identical. Previously, methane was poured over a fuel cells to beget electricity, though a conflicting routine is now applied. Now, we separate H2O by means of electricity and mix it with a methanator to emanate a end-product methane,” says Søren Primdahl.

The likeness between electrolysis and fuel cells is underlined by their names containing a letters SOC, that mount for solid, oxide, and cells. Fuel cells similarly enclose a minute F for fuel, while electrolytic cells enclose a minute E for electrolysis—i.e. SOEC cells.

The art of stacking cells

In tie with both SOFC and SOEC, a cells are formed on law record grown by DTU Energy. Haldor Topsøe binds a looseness to use a patents, formed on that they have constructed a array of patents.

“The cells are indeed usually one of several technologies. The cells contingency be built to grasp sufficient efficiency. We are stacking specialists, and we have also grown a series of other solutions for mixing stacks as good as for a whole SOC system,” Søren Primdahl underlines, and continues:

“The biggest disproportion is that a appetite change with SOEC is different. In tie with fuel cells, high-quality feverishness is a good total reward when producing energy from methane. When regulating electrolysis, in that box a routine is reversed, we can instead feat rubbish feverishness generated in a SOEC stacks, though also by regulating steam for a electrolysis instead of glass water.”

Inspiration for CO monoxide plant

In further to a methanization work, Haldor Topsøe has achieved a breakthrough in propinquity to a identical use of electrolysis. SOEC can also be used to furnish CO (carbon monoxide—also called CO monoxide) from CO2 and electricity.

“Carbon monoxide is practical in a accumulation of industrial processes, for instance in tie with a prolongation of medicine, electronics, and excellent chemicals. The element can be delivered by special trucks, though it’s expensive, and authorisation is required. It’s really easier to furnish CO on-site where it’s dictated to be used and to use it immediately,” says Søren Primdahl.

The plant, that has been named eCOs (‘e’ for electrolysis and ‘CO’ for CO monoxide), is designed as modules. The modules can be total into, for example, a plant able of producing 96 m3 of CO per hour.

“We trust that a record is viable for companies that need approx. 25 adult to a few hundred m3 of CO per hour. If there’s a larger need, another form of plant would be preferred—which, by a way, Topsøe also supplies. So in that way, a electrolysis plant fits in good with the operation of products,” says Søren Primdahl.

Source: DTU

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OSIRIS-REx Asteroid Search Tests Instruments http://latesttechnology.space/osiris-rex-asteroid-search-tests-instruments/ http://latesttechnology.space/osiris-rex-asteroid-search-tests-instruments/#comments Sun, 26 Mar 2017 07:39:25 +0000 http://latesttechnology.space/osiris-rex-asteroid-search-tests-instruments/ During an roughly two-week search, NASA’s OSIRIS-REx goal group activated a spacecraft’s MapCam imager and scanned partial of a surrounding space for fugitive Earth-Trojan asteroids — objects that scientists trust might exist in one of a fast regions that co-orbits a object with Earth. Although no Earth-Trojans were discovered, a spacecraft’s camera operated exquisitely and demonstrated that it could picture objects dual magnitudes dimmer than creatively expected.

The spacecraft, now on a outbound tour to a asteroid Bennu, flew by a core of Earth’s fourth Lagrangian area — a fast segment 60 degrees in front of Earth in a circuit where scientists trust asteroids might be trapped, such as asteroid 2010 TK7 detected by NASA’s Wide-field Infrared Survey Explorer (WISE) satellite in 2010. Though no new asteroids were detected in a segment that was scanned, a spacecraft’s cameras MapCam and PolyCam successfully acquired and imaged Jupiter and several of a moons, as good as Main Belt asteroids.

The trail of a Main Belt asteroid 12 Victoria, as imaged by NASA’s OSIRIS-REx booster on Feb. 11, 2017, during a mission’s Earth-Trojan Asteroid Search. This animation is done of a array of 5 images taken by a spacecraft’s MapCam camera that were afterwards cropped and centered on Victoria. The images were taken about 51 mins detached and any was unprotected for 10 seconds.
Credits: NASA/Goddard/University of Arizona

“The Earth-Trojan Asteroid Search was a poignant success for a OSIRIS-REx mission,” pronounced OSIRIS-REx Principal Investigator Dante Lauretta of a University of Arizona, Tucson. “In this initial unsentimental use of a mission’s scholarship operations, a goal group schooled so most about this spacecraft’s capabilities and moody operations that we are now forward of a diversion for when we get to Bennu.”

The Earth Trojan consult was designed essentially as an use for a goal group to discipline a jeopardy hunt a booster will perform as it approaches a aim asteroid Bennu. This hunt will concede a goal group to equivocate any healthy satellites that might exist around a asteroid as a booster prepares to collect a representation to lapse to Earth in 2023 for systematic study.

The spacecraft’s MapCam imager, in particular, achieved most improved than approaching during a exercise. Based on a camera’s pattern specifications, a group approaching detecting 4 Main Belt asteroids. In practice, however, a camera was means to detect relocating asteroids dual magnitudes fainter than approaching and imaged a sum of 17 Main Belt asteroids. This indicates that a goal will be means to detect probable hazards around Bennu progressing and from a most larger stretch that creatively planned, serve shortening goal risk.

Scientists are still examining a implications of a search’s formula for a intensity race of Earth-Trojan asteroids and will tell conclusions after a consummate investigate of goal data.

Source: NASA

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How TRAPPIST-1 and Breakthrough Starshot Inspire Space Exploration http://latesttechnology.space/how-trappist-1-and-breakthrough-starshot-inspire-space-exploration/ http://latesttechnology.space/how-trappist-1-and-breakthrough-starshot-inspire-space-exploration/#comments Sun, 26 Mar 2017 07:39:24 +0000 http://latesttechnology.space/how-trappist-1-and-breakthrough-starshot-inspire-space-exploration/ Image credit: breakthroughinitiatives.org

If you’ve been following a latest news in science, you’ll know that humanity’s closer than it ever has been in reaching space scrutiny milestones, researching visitor worlds that competence be habitable for humans. Researchers recently detected 7 planets a stretch of Earth orbiting a adjacent star, named TRAPPIST-1, and Stephen Hawking has vowed to strech Alpha Centauri within one era with a plan Breakthrough Starshot.

These discoveries enthuse a star and light a lift for serve developments in space exploration. What do they meant for a destiny of space exploration, and how prolonged will it take to strech a planets of TRAPPIST-1?

The Push to Reach TRAPPIST-1 and Beyond

TRAPPIST-1 is a really cold dwarf star somewhat incomparable than Jupiter, 39 light years away, and it burns around 6,500 times cooler than Earth’s sun. The 7 planets circuit really firmly together around TRAPPIST-1, like Jupiter’s moons circuit their planet, creation a sky on any world filled with energetic beauty.

The parsimonious orbits helped researchers brand a 7 planets and their ability to potentially support life, theoretically with glass H2O flowing. The tighten orbits’ lift and lift and could emanate comfortable tidal forces, identical to a awaiting of solidified Europa’s subterraneous ocean, as it orbits Jupiter. The planets are tidally locked, where one side of any world practice consistent day or night. The brightest indicate of one day competence be like a pleasing dimming nightfall on Earth.

No one will know what these planets indeed demeanour like until a examine is sent, and estimates contend it will take 180 Earth years to make it to TRAPPIST-1 with Breakthrough Starshot’s spacecrafts.  Zachary R. Manchester, one of a scientists operative on a Starshot team, also grown “ChipSat” in 2011, a 3.5 cm by 3.5 cm spaceship on a printed circuit board. Many scientists trust that he’ll move this believe and engineering to a Breakthrough Starshot Project.

As explorers set cruise into a 7 seas, a initial Starshot booster will also, with a really skinny cruise of a own. Attached to this cruise is a chip a stretch of a wafer. It’s called a StarChip.  Small and skinny circuit play will expected yield energy to navigation and information recording equipment.  These chips are tiny and durable, well doing many applications. The LightSail of a interstellar sailboat is usually thick as a few hundred atoms and weighs in during gram-scale mass.

Though it sounds like skipping a prosaic mill opposite a ocean, this span could potentially strech adult to 20 percent of a speed of light. Researchers have even nicknamed it their interstellar spaceboat. The Starshot booster will be pushed to a stars with a laser light projected from a trickery on Earth during high altitude, after a recover from a mothership.

The Journey Will Take Time and Advanced Technology

So, when are we going? In terms of expanded space time, TRAPPIST-1 is within cheering distance, though stream nanotechnology needs to grow more. Meanwhile, a idea is to investigate each fact probable of this complement with the Webb Space Telescope (JWST), that will be operational as of 2018. Within a subsequent few years, researchers will accumulate information on a habitability of a 7 planets.

Meanwhile, $100 million was invested in a Breakthrough Starshot project’s growth and launch, that will be a vital jump in removing amiability there sooner. The record now in growth will assistance diminution a time it takes to tour to TRAPPIST-1.

The find of TRAPPIST-1 sets a really genuine and practicable idea for space exploration. The lift to grow a Breakthrough Starshot plan is a vital uncover of unrestrained and egghead force to allege scholarship and tellurian exploration. Researchers during a Starshot plan are reaching out to a pubic, mouth-watering them to plead their opinions and ideas.

The open is concerned in a approach it never has been before, and if they continue to deposit such unrestrained and funding, maybe such planets will be inhabited within a subsequent century or two. These projects hint age-old urges in humankind, who initial wandered a farthest corners of a Earth, to strech with a identical passion into a immeasurable stretches of a universe.

Source: mclpcb.com, created by Megan Ray Nichols

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Mars: Dunes of a Southern Highlands http://latesttechnology.space/mars-dunes-of-the-southern-highlands/ http://latesttechnology.space/mars-dunes-of-the-southern-highlands/#comments Sun, 26 Mar 2017 07:39:22 +0000 http://latesttechnology.space/mars-dunes-of-the-southern-highlands/

Sand dunes are sparse opposite Mars and one of a incomparable populations exists in a Southern hemisphere, only west of a Hellas impact basin. The Hellespontus segment facilities countless collections of dark, dune formations that collect both within depressions such as craters, and among “extra-crater” plains areas.

This picture displays a center apportionment of a vast dune margin stoical essentially of crescent-shaped “barchan” dunes. Here, a steep, sunlit side of a dune, called a trip face, indicates a down-wind side of a dune and instruction of a migration. Other long, slight linear dunes famous as “seif” dunes are also here and in other locales to a east.

NB: “Seif” comes from a Arabic word definition “sword.”

The map is projected here during a scale of 25 centimeters (9.8 inches) per pixel. [The strange picture scale is 25.5 centimeters (10 inches) per pixel (with 1 x 1 binning); objects on a sequence of 77 centimeters (30.3 inches) opposite are resolved.] North is up.

The University of Arizona, Tucson, operates HiRISE, that was built by Ball Aerospace Technologies Corp., Boulder, Colo. NASA’s Jet Propulsion Laboratory, a multiplication of Caltech in Pasadena, California, manages a Mars Reconnaissance Orbiter Project for NASA’s Science Mission Directorate, Washington.

Source: NASA

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NASA’s Juno Spacecraft Set for Fifth Jupiter Flyby http://latesttechnology.space/nasas-juno-spacecraft-set-for-fifth-jupiter-flyby/ http://latesttechnology.space/nasas-juno-spacecraft-set-for-fifth-jupiter-flyby/#comments Sun, 26 Mar 2017 07:39:21 +0000 http://latesttechnology.space/nasas-juno-spacecraft-set-for-fifth-jupiter-flyby/

This enhanced-color picture of a puzzling dim mark on Jupiter seems to exhibit a Jovian “galaxy” of swirling storms. Credits: NASA/JPL-Caltech/SwRI/MSSS/Roman Tkachenko

NASA’s Juno booster will make a fifth flyby over Jupiter’s puzzling cloud tops on Monday, Mar 27, during 1:52 a.m. PDT (4:52 a.m. EDT, 8:52 UTC).

At a time of closest proceed (called perijove), Juno will be about 2,700 miles (4,400 kilometers) above a planet’s cloud tops, roving during a speed of about 129,000 miles per hour (57.8 kilometers per second) relations to a gas-giant planet. All of Juno’s 8 scholarship instruments will be on and collecting information during a flyby.

“This will be a fourth scholarship pass — a fifth tighten flyby of Jupiter of a goal — and we are vehement to see what new discoveries Juno will reveal,” pronounced Scott Bolton, principal questioner of Juno from a Southwest Research Institute in San Antonio. “Every time we get nearby Jupiter’s cloud tops, we learn new insights that assistance us know this extraordinary hulk planet.”

The Juno scholarship group continues to investigate earnings from prior flybys. Scientists have detected that Jupiter’s captivating fields are some-more difficult than creatively thought, and that a belts and zones that give a planet’s cloud tops their particular demeanour extend low into a a interior. Observations of a enterprising particles that emanate a illuminated auroras advise a difficult stream complement involving charged element lofted from volcanoes on Jupiter’s moon Io.

Peer-reviewed papers with some-more in-depth scholarship formula from Juno’s initial flybys are approaching to be published within a subsequent few months.

Juno launched on Aug. 5, 2011, from Cape Canaveral, Florida, and arrived in circuit around Jupiter on Jul 4, 2016. During a goal of exploration, Juno soars low over a planet’s cloud tops — as tighten as about 2,600 miles (4,100 kilometers). During these flybys, Juno is probing underneath a obscuring cloud cover of Jupiter and study a auroras to learn some-more about a planet’s origins, structure, atmosphere and magnetosphere.

Source: JPL

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