As parents we want more than anything to shield our kids from painful situations. Sometimes these things are inevitable, and must be dealt with.
How do you deal with tough subjects in your house?
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In a breakthrough that could make fuel cells practical for such small machines as lawnmowers and chainsaws, researchers have developed a new mechanism to efficiently control hydrogen fuel cell power.
From Science DailyMany standard fuel cell designs use electronics to control power output, but such designs require complex systems to manage humidity and fuel recovery and recycling systems to achieve acceptable efficiency.
The new process controls the hydrogen feed to match the required power output, just as one controls the feed of gasoline into an internal combustion engine. The system functions as a closed system that uses the waste water to regulate the size of the reaction chamber, the site where the gasses combine to form water, heat and electricity.
There is no evidence that moderate levels of caffeine consumption during pregnancy lead to a greater risk of premature births and underweight babies despite warnings from some public health officials, finds a new study in the online edition of the British Medical Journal.From Science Daily
Previous research has puzzled public health authorities. While some studies have suggested that a high caffeine intake can lead to lower average birth weights of as much as 100 -- 200g and an increased chance of preterm babies, others have found no connection between caffeine and problems with foetal development.
READ MOREThe vaccine is meant to prevent diphtheria, tetanus, whooping cough,
polio and bacterial infection caused by Haemophilus influenzae type b,
or Hib. Hib disease can cause meningitis, pneumonia and arthritis.[...]If
approved, the vaccine could eliminate seven of the 23 federally
recommended injections children now must endure through age 18 months,
according to Sanofi Pasteur, the vaccines business of Paris-based
Sanofi-Aventis. The vaccine would be given in four doses, at 2 months,
4 months and 6 months and finally at 15 months to 18 months.