In the last decade, developments in nanotechnology have provided a new field in medicine called “Nanomedicine”. Nanomedicine has provided new tools for photodynamic therapy. Quantum dots (QDs) are approximately spherical nanoparticles that have attracted broad attention and have been used in nanomedicine applications. QDs have high molar extinction coefficients and photoluminescence quantum yie...

The March issue of the London Royal College Physicians’ Commentary included an excellent essay by Derek Macallan, infectious diseases specialist, arguing that it was time to stop using term “front line” in a medical context. piece finished asking what, if anything, could replace it.1 Macallan made his case context pandemic medicine many us have practised for year or so. He concerned battle met...

I was born in 1927. That was the year Charles Lindbergh flew to Paris and Babe Ruth hit 60 home runs. These high points remain vivid in my memory. Later, however, I became aware of two other happenings that plunged hundreds of my human brothers and sisters into a terrible dark and dismal slough of despondance. In 1927, Hitler wrote Mein Kampf (My Struggle). In it he called for the cleansing of ...

The effects of depressed mothers' touching on their infants' behavior were investigated during the still-face situation. 48 depressed and nondepressed mothers and their 3-month-old infants were randomly assigned to control and experimental conditions. 4 successive 90-sec periods were implemented: (A) normal play, (B) still-face-no-touch, (C) still-face-with-touch, and (A) normal play. Depressed...

The classic moral stories have been used extensively to teach children about the consequences of lying and the virtue of honesty. Despite their widespread use, there is no evidence whether these stories actually promote honesty in children. This study compared the effectiveness of four classic moral stories in promoting honesty in 3- to 7-year-olds. Surprisingly, the stories of "Pinocchio" and ...

The concept of the sun protection factor was originally proposed by the Austrian scientist Franz Greiter and subsequently adopted by many regulatory authorities and the cosmetic and pharmaceutical industries. It is popularly interpreted as how much longer skin covered with sunscreen takes to burn compared with unprotected skin. This interpretation can encourage users to prolong their sun exposu...