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DEET is effective against a variety of invertebrates, including ticks, flies, mosquitos, and some parasitic worms. [3]A 2018 systematic review found no consistent performance difference between DEET and icaridin in field studies and concluded that they are equally preferred mosquito repellents, noting that 50% DEET offers longer protection but is not available in some countries.
DDT was formerly used throughout the world for large area mosquito control, but it is now banned in most developed countries. [ 36 ] Controversially, DDT remains in common use in many developing countries (14 countries were reported to be using it in 2009 [ 36 ] ), which claim that the public-health cost of switching to other control methods ...
A worldwide ban on agricultural use was formalized under the Stockholm Convention on Persistent Organic Pollutants, which has been in effect since 2004. Recognizing that total elimination in many malaria-prone countries is currently unfeasible in the absence of affordable/effective alternatives for disease control, the convention exempts public ...
In Texas, the process for challenging and removing books from schools differs from place to place. A state effort is scrutinizing nearly 850 titles.
Here are 50 books Texas parents have asked school districts to ban, nearly all of which deal with racism, sexuality
A federal appeals court on Wednesday blocked a Texas law that would require ratings from booksellers that deal with school libraries, agreeing with a lower court that found it unconstitutional.
Texas House Bill 3979 (HB 3979) is an act that relates to civics instruction and instruction policies in public schools in the state of Texas.A follow-up bill to HB 3079—TX Senate Bill 3 [1] —authored by Senator Bryan Hughes (R-Mineola) and others, which was filed on July 9, 2021, passed on July 16, 2021, and becomes law in December, limits the manner and extent to which students may learn ...
In Spain, primary school and secondary school are considered basic (obligatory) education. These are Primaria (6–12 years old), which is the Spanish equivalent of elementary school and the first year of middle school, and Secundaria (12–16 years old), which would be a mixture of the last two years of middle school and the first two years of ...