Learning
Legislators and Community Leaders Debating Ways to Boost the Number of Children Who Are Up to Date on School-Mandated Vaccinations
Amid a surge in measles cases nationwide this year, legislators and community leaders are debating ways to boost the number of kids who are up to date on their school-mandated shots. Many have focused on restricting or eliminating vaccination exemptions based on religion or personal opinions, which are common and have been offered by school districts across the United States for decades. But three recent academic studies suggest this might not be the most effective way to improve childhood vaccination rates. Scholars studied student vaccination rates in California and discovered that when parents cannot get an exemption based on their personal beliefs, some seek other ways for their children to stay in school while skipping one or more vaccinations. more »
Revisiting Favorite Books: Kristin Lavransdatter, the Trilogy - The Wreath, The Mistress of Husaby and The Cross
Julia Sneden reviews: We find that it an interesting process, looking back at books we read in our twenties and thirties. The books themselves haven't changed, but thanks to the varied experiences that another twenty or thirty years have added to our lives, we read them from a different perspective. Herewith, the first review of an old, beloved book (actually, three books). "Her mother too had been marked in youth, body and soul, by the bearing and nourishing of children; and she had thought perchance no more than Kristin herself, when she sat with that sweet young life at her breast, that so long as they two lived, each single day would lead the child farther and farther from her arms." more »
National Hurricane Research Division: Why don't we try to destroy tropical cyclones by nuking them?
"During each hurricane season, there always appear suggestions that one should simply use nuclear weapons to try and destroy the storms. Apart from the fact that this might not even alter the storm, this approach neglects the problem that the released radioactive fallout would fairly quickly move with the tradewinds to affect land areas and cause devastating environmental problems. Needless to say, this is not a good idea ... A fully developed hurricane can release heat energy at a rate of 5 to 20x1013 watts and converts less than 10% of the heat into the mechanical energy of the wind. The heat release is equivalent to a 10-megaton nuclear bomb exploding every 20 minutes." more »
GAO** Reports: Electronic Cigarettes - US Imports and the Value of US E-cigarette Imports was $2.4 billion; CDC and FDA Campaigns
Over the last 15 years, use of electronic cigarettes in the United States has grown rapidly as use of traditional cigarettes declined. Most e-cigarettes sold here are thought to be imported. The government began collecting data on imported e-cigarette devices, parts, and liquid in 2016. The value of US e-cigarette imports was $2.4 billion and brought $120 million in tariff revenue over that period. China accounted for 97% of these e-cigarette imports by value, and more than 271 million e-cigarette devices were imported. more »