The widespread deployment of Rapiscan’s body scanners in major airports around the US has raised concerns about the ionizing radiation doses to traveling public. Rapiscan doesn’t publicly provide dose calculations, but the company does claim that the X-ray screening machines are in compliance with the 2002 ANSI standard (American National Standards Institute), they also says […]

“Pine Mouth” Revisited

While doing my “random” searches in Google Scholar I stumbled upon this article by Marc-David Munk – “Pine mouth” syndrome: cacogeusia following ingestion of pine nuts (genus: pinus). An emerging problem? “[1].  Incidentally, last year I did experience “pine mouth” syndrome and wrote about it in “Cursed Pine Nuts or Triglycerides?“. Dr. Munk  from Department of Emergency […]

“Although vendor-determined doses are small and not associated with adverse health effects, dose accuracy is in question because of inherent difficulties in measuring X-ray exposures from rapidly moving X-ray beams.”

Cursed Pine Nuts or Triglycerides?

A few days ago I noticed that my taste was disturbed: no matter what I eat or drink I feel the bitter taste in my mouth. This bitter, metallic taste appears within seconds of chewing and it affects everything I eat even sweets! Initially I thought I was having a very serious health problem until […]

Heat Flow through Hydrocarbon Chains

Researchers understand heat transfer on the scales of individual molecules and in solids, but there is still much to learn about the physics of heat transfer in just a few molecules that will be used in nanometer-scale electronics. Zhaohui Wang and coauthors used a laser pulse to heat a gold substrate onto which a self-assembled monolayer of long-chain hydrocarbon molecules had been formed.

Unanswered Questions

Today I studied my blog’s statistics to see what keywords people use to search in Google and Yahoo! to get to the pages of my site. Here is what I found based on the last 60 days of statistics: People used 1966 various search terms The top 20 keywords are: Then I looked at the […]

Polymer Solar Cells Build for Two

Researchers have developed a new method for producing tandem solar cells, in which two solar cells working together to use a wider range of the solar spectrum. The physical properties of the semiconductor materials in each cell allow one to absorb light at longer wavelengths and the other to absorb light at shorter wavelengths. Researchers […]

Nanogenerators Powered By Heartbeat

Scientists from Georgian Institute of Technology created a prototype nanogenerator that can generate electricity inside a human body. Tiny little devices traveling in our bloodstream while performing complete blood analysis and monitoring our well-being is the future of implantable biosensors. However, these nanorobots will need to be self-powered and there are two ways for achieving […]

Carbon Nanoscrolls to Store Hydrogen

As our planet is running out of petroleum resources, a new energy source must be found. Hydrogen is regarded as an ideal alternative to fossil fuel because of its abundance in environment, renewability, and zero emission. However, the most challenging and important aspect for the successful transition to a hydrogen economy is the problem of […]

Chinese Meds are Safe

…well, the prescription ones at least. With Chinese manufacturers considering to increase exports of drug ingredients and perhaps even begin shipping finished drug products to the United States, an article “Trusting medicine from China: Close FDA scrutiny of Chinese pharmaceutical ingredients extends only to those for prescription drugs” in Chemical & Engineering News (C&EN) questions […]

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