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Apr 28, 2019

Solar Electric Propulsion (SEP)

Posted by in categories: robotics/AI, solar power, space travel

As NASA seeks cost-effective access to destinations across the inner solar system, including cislunar space and Mars, it also seeks to shorten the cycle of time to develop and infuse transformative technologies that increase the nation’s capabilities in space, enable NASA’s future missions and support a variety of commercial spaceflight activities.

NASA’s Solar Electric Propulsion (SEP) project is developing critical technologies to extend the length and capabilities of ambitious new science and exploration missions. Alternative propulsion technologies such as SEP may deliver the right mix of cost savings, safety and superior propulsive power to enrich a variety of next-generation journeys to worlds and destinations beyond Earth orbit.

Energized by the electric power from on-board solar arrays, the electrically propelled system will use 10 times less propellant than a comparable, conventional chemical propulsion system, such as those used to power the space shuttles to orbit. Yet that reduced fuel mass will deliver robust power capable of propelling robotic and crewed missions well beyond low-Earth orbit — sending exploration spacecraft to distant destinations or ferrying cargo to and from points of interest, laying the groundwork for new missions or resupplying those already underway. Mission needs for high-power SEP are driving the development of advanced technologies the project is developing and demonstrating including large, light-weight solar arrays, magnetically shielded ion propulsion thrusters, and high-voltage power processing units.

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Apr 28, 2019

Combating Osteoarthritis With Stem Cells

Posted by in categories: biotech/medical, life extension

An estimated 30 million Americans are affected by osteoarthritis according to the CDC, and it is predominantly a disease of older age affecting more than 1 in 10 people aged 60+; with the aging population this number is likely to continue to rise steadily.

When cartilage naturally cushioning joints breaks down, osteoarthritis of the knee occurs, without this buffer bones can come into contact with each other causing pain, stiffness, and loss of flexibility.

Medications and physical interventions can ease symptoms of osteoarthritis, but currently there is no sure as it is not possible to regrow cartilage, once progressed to end stages the only option is surgical replacement of the joint. Stem cells were recently used to ease osteoarthritis in a small scale preliminary trial with promising results that will pave the way for more larger studies.

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Apr 28, 2019

Human dental pulp stem cells: Applications in future regenerative medicine

Posted by in categories: biotech/medical, life extension, neuroscience

Stem cells are pluripotent cells, having a property of differentiating into various types of cells of human body. Several studies have developed mesenchymal stem cells (MSCs) from various human tissues, peripheral blood and body fluids. These cells are then characterized by cellular and molecular markers to understand their specific phenotypes. Dental pulp stem cells (DPSCs) are having a MSCs phenotype and they are differentiated into neuron, cardiomyocytes, chondrocytes, osteoblasts, liver cells and β cells of islet of pancreas. Thus, DPSCs have shown great potentiality to use in regenerative medicine for treatment of various human diseases including dental related problems. These cells can also be developed into induced pluripotent stem cells by incorporation of pluripotency markers and use for regenerative therapies of various diseases. The DPSCs are derived from various dental tissues such as human exfoliated deciduous teeth, apical papilla, periodontal ligament and dental follicle tissue. This review will overview the information about isolation, cellular and molecular characterization and differentiation of DPSCs into various types of human cells and thus these cells have important applications in regenerative therapies for various diseases. This review will be most useful for postgraduate dental students as well as scientists working in the field of oral pathology and oral medicine.

Keywords: Human dental pulp stem cells, Mesenchymal stem cells, Dentin, Pluripotency, Stem cell therapy, Molecular markers.

Core tip: Human dental pulp stem cells (DPSCs) have shown a potentiality for the treatment of various human diseases including dental related problems. The review will overview the information about DPSCs, their isolation, cellular and molecular characterization, differentiation into various types of cells and their applications in regenerative therapies for various diseases. This review will be most useful for postgraduate dental students as well as the scientists working in the field of oral pathology, oral medicine and regenerative medicine.

Continue reading “Human dental pulp stem cells: Applications in future regenerative medicine” »

Apr 28, 2019

Tesla Promises Full Level 5 Autonomy in 2019, Model 3 Robotaxis in ’20

Posted by in categories: Elon Musk, robotics/AI, transportation

Tesla and CEO Elon Musk say many Teslas will soon drive themselves, and that up to 1 million private Model 3s will form an autonomous taxi service.

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Apr 28, 2019

Tesla Roadster Battery Range To Eclipse 1000 Kilometer Mark: Elon Musk

Posted by in categories: Elon Musk, space travel, sustainability

The previous Tesla Roadster Battery range of 1000 km was a conservative estimate. It is the range which users will get if they drive like a maniac. Who can blame them, when the car does 0–100 km/h in under 2 seconds.

Furthermore, Tesla fans also remember that a founders edition with cold gas thrusters is also coming in very limited numbers for hardcore electric car enthusiasts.

It is 2019 and the numbers provided by electric cars have already begun to eclipse the likes of Lamborghini Aventador and Bugatti Veyron. Lamborghini Aventador currently gives 10 MPG (Miles per gallon) or 4.25 km/l in the city, while the Bugatti Veyron delivers an embarrassingly low 7 MPG or 2.97 km/l.

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Apr 28, 2019

Toyota unveils latest heavy-duty electric fuel-cell truck to haul cargo around LA

Posted by in categories: energy, transportation

The latest version of Toyota’s zero-emissions fuel-cell powered tractor truck was unveiled today in Los Angeles. Developed as part of a joint project with the Kenworth Truck Company, the Port of Los Angeles, and the California Air Resources Board (CARB), the Fuel Cell Electric heavy-duty Truck (FCET) that runs on hydrogen and produces only water as waste is intended to meet or exceed the performance of a conventional diesel truck.

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Apr 28, 2019

Stem Cell trial for osteoarthritis patients reduces pain, improves quality of life

Posted by in category: biotech/medical

In the first North American stem cell clinical trial for osteoarthritis of the knee patients, 12 patients were given injections of their own stem cells and followed for 12 months. The results show a significant improvement in pain levels and quality of life.

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Apr 28, 2019

Heavy metals like arsenic and lead found in 45 packaged fruit juices, report finds

Posted by in categories: biotech/medical, health

A new report out Wednesday says some popular fruit juices may contain heavy metal contaminants like lead, arsenic, and cadmium. Consumer Reports tested 45 packaged fruit juices and found measurable levels of heavy metal in every product. Long-term exposure to these metals could cause serious health risks, including kidney disease and certain types of cancer. Anna Werner reports.

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Apr 28, 2019

PROFESSOR DAVID SINCLAIR | Can Humans Live For 1000 Years? | Modern Wisdom Podcast #066

Posted by in categories: biotech/medical, genetics, life extension

David Sinclair is a Professor in the Department of Genetics at Harvard Medical School and co-Director of the Paul Glenn Centre for the Biological Mechanisms of Ageing.

Today we hear from a scientist at the cutting edge of longevity research as Professor Sinclair gives us a fascinating insight into the world of anti-ageing.

Continue reading “PROFESSOR DAVID SINCLAIR | Can Humans Live For 1000 Years? | Modern Wisdom Podcast #066” »

Apr 28, 2019

Scientists seek genetic answer to predatory nature of invasive lionfish

Posted by in category: genetics

The lionfish is an invasive species that is currently wreaking havoc in the warm waters of the Bahamas, the Caribbean, and the US southwestern Atlantic and Gulf of Mexico coasts. But where did they come from and what makes this normally docile hunter suddenly turn vicious in its new home? To answer these questions, North Carolina State University initiated a study of lionfish genetics to learn more about their origins and how to control them.

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