Imagine The Lightsabers From This

Types as Ya Boy Bill Nye quotes

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Types as Ya Boy Bill Nye quotes

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Tumour Markers

Chemical biomarkers that can be elevated by the presence of one or more types of cancer,  produced directly by the tumour or by non-tumour cells as a response to the presence of a tumour. Really great tests as can use just blood/urine, but aren’t the most specific and false positives do occur.

Alpha-fetoprotein (AFP) 

Glycoprotein synthesised in yolk sac, the foetal liver, and gut - will be high in a foetus and during pregnancy. 

<10 ng/mL is normal for adults

>500 ng/mL could indicate liver tumour

Normally:

Produced primarily by the liver in a developing foetus 

Thought to be a foetal form of albumin

suppress lymphocyte activation and antibody production in adults (immune suppressant)

Binds bilirubin, fatty acids, hormones and metals

In cancer:

Detects hepatocarcinoma (liver cancer)

Risk factors: haemochromotosis, hep B, alcoholism - cell repair and growth from this damage leads to cancers

Present in non-pathogenic liver proliferation, including the growth and repair response to the above. This makes it hard to differentiate - AFP levels can be raised in patients with liver cancer risk factors due to the factors themselves, not a cancer. Not very diagnostic!! Used in combination with other tests/factors. Sensitivity and specificity ~75%

Other hepatocellular carcinoma markers:

γGT (γ-glutamyltransferase) - biliary damage

AFP mRNA (not always together with AFP! Might not be activated)

γGT mRNA elevated

Raised cytokines (IL-8, VEGF, TGF-B1) 

ALT and AST elevated - liver disease

Carcinoembryonic antigen (CEA)

a set of highly related glycoproteins involved in cell adhesion. Potentially associated with innate immune system.

Normally:

produced in gastrointestinal tissue during foetal development 

production stops before birth

present only at very low levels in the blood of healthy adults. 

Cancer:

Elevated in almost all patients with colorectal cancer

Can monitor recurrence of cancer (when compared to previous test results for that patient) with a sensitivity of 80% and specificity of 70%

levels may also be raised in gastric, pancreatic, lung, breast and medullary thyroid carcinomas

also some non-neoplastic (not cancer) conditions like ulcerative colitis, liver disease, pancreatitis,  COPD, Crohn’s disease, hypothyroidism - again, high risk groups for colorectal cancer - not a diagnostic test

Levels elevated in smokers.

Carbohydrate antigens (CA)

Including:

CA 19-9 - Pancreas

CA 15-3 Breast

CA 50 - Colorectal

CA 125 - ovarian

Levels rise only in disease states and particularly cancer, but will not rise in all patients.

Part 2 coming soon!

(via MIT researchers turn water into ‘calm’ computer interfaces)

…The Tangible Media Group demonstrated a way to precisely transport droplets of liquid across a surface back in January, which it called “programmable droplets.” The system is essentially just a printed circuit board, coated with a low-friction material, with a grid of copper wiring on top. By programmatically controlling the electric field of the grid, the team is able to change the shape of polarizable liquid droplets and move them around the surface. The precise control is such that droplets can be both merged and split.

Moving on from the underlying technology, the team is now focused on showing how we might leverage the system to create, play and communicate through natural materials…

Hey ISS, I'm looking at you!

How to Identify that Light in the Sky [750 × 702] Visit http://spaceviewsandbeyond.blogspot.com/2017/09/how-to-identify-that-light-in-sky-750.html for more space pics

Panorama of Jupiter

Jupiter seen by NASA’s Voyager spacecraft

Animation taken from video: Jeff Quitney

A woman in Nevada dies from a bacterial infection that was resistant to 26 different antibiotics. A U.K. patient contracts a case of multidrug-resistant gonorrhea never seen before. A typhoid superbug kills hundreds in Pakistan. These stories from recent years — and many others — raise fears about the possibility of a post-antibiotic world.

The development of antibiotics in the early 20th century was one of the greatest leaps forward of modern medicine. Suddenly, common illnesses like pneumonia, strep throat and gonorrhea were no longer potential death sentences.

But even in the infancy of antibiotics, it was clear that their misuse and overuse could lead to antibiotic resistance and eventually create untreatable superbugs.

In this video, we explain how antibiotic resistance happens — and what we can do to avoid living in a post-antibiotic world.

Video: NPR

Cracking eggshell nanostructure: New discovery could have important implications for food safety

How is it that fertilized chicken eggs manage to resist fracture from the outside, while at the same time, are weak enough to break from the inside during chick hatching? It’s all in the eggshell’s nanostructure, according to a new study led by McGill University scientists.

The findings, reported today in Science Advances, could have important implications for food safety in the agro-industry.

Birds have benefited from millions of years of evolution to make the perfect eggshell, a thin, protective biomineralized chamber for embryonic growth that contains all the nutrients required for the growth of a baby chick. The shell, being not too strong, but also not too weak (being “just right” Goldilocks might say), is resistant to fracture until it’s time for hatching.

But what exactly gives bird eggshells these unique features?

To find out, Marc McKee’s research team in McGill’s Faculty of Dentistry, together with Richard Chromik’s group in Engineering and other colleagues, used new sample-preparation techniques to expose the interior of the eggshells to study their molecular nanostructure and mechanical properties.

Read more.

Re-generatively cooled RL10 Thrust Chamber Assembly test validates 3D printing process

West Palm Beach FL (SPX) Jun 18, 2018 Aerojet Rocketdyne recently achieved a significant milestone by successfully completing a series of hot-fire tests of an advanced, next-generation RL10 engine thrust chamber design that was built almost entirely using additive manufacturing; commonly known as 3-D printing. “This recent series of hot-fire tests conducted under our RL10C-X development program demonstrated the large-scale add Full article