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May 2, 2020

US invests hundreds of millions to produce Covid-19 vaccines

Posted by in categories: biotech/medical, genetics

Jordan says Moderna is able to scale up quicker than traditional manufacturers, as its vaccines are created by manipulating mRNA, the molecule that carries genetic instructions from DNA to a cell’s protein-making ribosome. Moderna manipulates mRNA so that it instructs human cells to produce certain viral proteins; the proteins themselves don’t cause infection, but they do invoke an immune response. “The RNA uses the human body as its bioreactor,” says Jordan, so Moderna itself doesn’t have to manufacture the proteins. “To create a different vaccine candidate [for Moderna] is to trigger a different RNA sequence. We don’t need to build a different cell processing plant,” says Jordan.

The central dogma of molecular biology deals with the detailed residue-by-residue transfer of sequential information. It states that such information cannot be transferred back from protein to either protein or nucleic acid.— Francis Crick.

The dogma is a framework for understanding the transfer of sequence information between information-carrying biopolymers, in the most common or general case, in living organisms. There are 3 major classes of such biopolymers: DNA and RNA (both nucleic acids), and protein. There are 3×3=9 conceivable direct transfers of information that can occur between these. The dogma classes these into 3 groups of 3: three general transfers (believed to occur normally in most cells), three special transfers (known to occur, but only under specific conditions in case of some viruses or in a laboratory), and three unknown transfers (believed never to occur). The general transfers describe the normal flow of biological information: DNA can be copied to DNA (DNA replication), DNA information can be copied into mRNA (transcription), and proteins can be synthesized using the information in mRNA as a template (translation). The special transfers describe: RNA being copied from RNA (RNA replication), DNA being synthesised using an RNA template (reverse transcription), and proteins being synthesised directly from a DNA template without the use of mRNA. The unknown transfers describe: a protein being copied from a protein, synthesis of RNA using the primary structure of a protein as a template, and DNA synthesis using the primary structure of a protein as a template — these are not thought to naturally occur. [6].

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May 2, 2020

From DNA to protein — 3D

Posted by in categories: biotech/medical, genetics, neuroscience

We can reprogram our DNA. The nucleus of a cell is not read only. It is actually read and write. Basically, the cell is a programmable device, in response to environmental information.

The templates for protein synthesis are RNA (ribonucleic acid) molecules. In particular, a class of RNA molecules called messenger RNA (mRNA) are the information-carrying intermediates in protein synthesis. Other RNA molecules, such as transfer RNA (tRNA) and ribosomal RNA (rRNA), are part of the protein-synthesizing machinery. All forms of cellular RNA are synthesized by RNA polymerases that take instructions from DNA templates. This process of transcription is followed by translation, the synthesis of proteins according to instructions given by mRNA templates.

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May 2, 2020

Scientists Detect Powerful Radio Burst Coming From Our Own Galaxy

Posted by in category: space

The call is coming from inside the galaxy.

May 2, 2020

New technology quickly turns food waste into fuel

Posted by in categories: energy, food

Circa 2017


The process is so efficient it extracts all of the potential energy from the food scraps.

May 2, 2020

Arthritis drug shows ‘significant’ promise in severe COVID-19 cases: study

Posted by in category: biotech/medical

The arthritis drug tocilizumab has shown early promise in preventing extreme inflammation in gravely ill COVID-19 patients, according to a French clinical study.

The treatment, which suppresses the body’s natural , was found to reduce “significantly” the number of deaths or life support interventions compared with a control group of patients.

The study, carried out by the Paris university hospital trust (AP-HP), looked at 129 people hospitalised with moderate or severe viral pneumonia, which occurs in 5–10 percent of COVID-19 patients.

May 2, 2020

Genetic Engineering Could Make a COVID-19 Vaccine in Months Rather Than Years

Posted by in categories: bioengineering, biotech/medical, genetics

Candidates are speeding toward human trials.

May 2, 2020

SpaceX aces final parachute test ahead of historic May 27 crew launch

Posted by in category: space travel

SpaceX wrapped up the 27th and final drop test of Crew Dragon’s upgraded parachute system today (May 1), apparently clearing the path for the Demo-2 mission later this month.

May 2, 2020

First direct look at how light excites electrons to kick off a chemical reaction

Posted by in categories: chemistry, energy

The first step in many light-driven chemical reactions, like the ones that power photosynthesis and human vision, is a shift in the arrangement of a molecule’s electrons as they absorb the light’s energy. This subtle rearrangement paves the way for everything that follows and determines how the reaction proceeds.

Now scientists have seen this first step directly for the first time, observing how the molecule’s electron cloud balloons out before any of the in the molecule respond.

While this response has been predicted theoretically and detected indirectly, this is the first time it’s been directly imaged with X-rays in a process known as molecular movie-making, whose ultimate goal is to observe how both electrons and nuclei act in real time when chemical bonds form or break.

May 2, 2020

A piece of moon once fell on Earth, and now you can buy the 13.5 kg rock at £2 mn

Posted by in categories: asteroid/comet impacts, existential risks

International auction house Christie’s is set to offer one of the largest lunar meteorites in existence for private sale. It is the fifth largest piece of the moon, larger than any moon rock returned by the Apollo programme.

Christie’s presents NWA 12691, a significant lunar rock, among the largest known in existence. Moon rock is among the rarest substances on Earth, with less than 650 kgs of lunar meteorites known to exist. This example is the fifth largest piece of the Moon on Earth, larger than any returned by the Apollo programme. Valued in the region of £2 million, the specimen is available for immediate purchase via Christie’s Private Sales.

Lunar meteorites arrived on Earth after having been blasted off the lunar surface by the collision with an asteroid or comet. All of the Moon’s large craters were created by such impacts. This particular meteorite was part of a large meteorite shower straddling the Western Saharan, Algerian and Mauritanian borders, responsible for nearly half of all known lunar meteorites. Approximately 30 different meteorites were collected, analysed, classified and assigned different NWA numbers in the belief they might be from different events and represent different lunar samples; but it has been determined that they all originate from the same lunar impact event as the current offering. NWA 12691 was found in the Sahara Desert two years ago.

May 2, 2020

Come join us for my talk on our broad spectrum anti-COVID antibodies

Posted by in category: biotech/medical

Sarah Ives’s talk on our broad spectrum vaccine technologies, and many others on Nextopic: nexverse.org/pandemics