Case 261

261-267 Santelli

contraceptives. Demographic surveys of contraceptive use in the United States typically have collected and reported data only on use of single methods; when more than one method is described by a respondent, the one reported by the investigator is usually the method that most effectively prevents pregnancy.4 Likewise, studies of HIV and STD risk often do not include data on contraceptive use fo...

261-266 Landry/Forrest

(800,000), syphilis (101,000)2 and trichomoniasis (three million).3 For viral STDs, however, there is no cure; these include human papilloma virus (between 500,000 and one million cases annually), genital herpes (200,000–500,000), sexually transmitted hepatitis B (53,000) and the human immunodeficiency virus, or HIV (which is responsible for 90,000 cases of AIDS annually).4 STDs other than HIV ...

Bez nazwy-261

Math 261 A - Fall 2017

In practice, there is no guarantee that the assumptions are satisfied for any given data set. From the summary statistics, such as SSR, SSRes, t-and F -test statistics or R it can be very hard (or impossible) to tell whether the assumptions are satisfied or violated. Thus we need other numerical or graphical methods to check the assumptions. The linearity is most often simply checked with scatt...

223 - 261 Deon V Canyon.pmd

Mosquitoes are serious biting pests and obligate vectors of many vertebrate pathogens. Their immature larval and pupal life stages are a common feature in most tropical and many temperate water bodies and often form a significant proportion of the biomass. Control strategies rely primarily on the use of larvicides and environmental modification to reduce recruitment and adulticides during perio...