OBJECTIVES To increase booster seat use among low income parents. DESIGN/METHODS A pre-test/post-test design conducted in nine daycare centers with post-test observations four to eight weeks after the intervention. INTERVENTION Parents who participated in an educational training received free seats, educational programs were provided to all daycare staff and children, and signs in parking l...

OBJECTIVE To assess the effectiveness of a national one week media campaign promoting booster seat use. DESIGN Pre-test, post-test design based on nationally representative random digit dialing telephone survey, with control for exposure to campaign. SETTING Canada. SUBJECTS Parents of children aged 4-9 years. INTERVENTIONS During a one week campaign in May 2004, information on booster ...

BACKGROUND Newborns who have received hepatitis B immunization in 1980s are now young adults joining healthcare disciplines. The need for booster, pre- and post-booster checks becomes a practical question. AIMS The aim of this study is to refine the HBV vaccination policy for newly admitted students in the future. METHODS A prospective study on medical and nursing school entrants to evaluat...

One alternative for management of brucellosis in Yellowstone National Park bison (Bison bison) is vaccination of calves and yearlings. Although Brucella abortus strain RB51 vaccination protects bison against experimental challenge, the effect of booster vaccinations was unknown. This study characterized immunologic responses after dart or booster vaccination of bison with Brucella abortus strai...

The World Health Organization recommends a booster dose of a pertussis-containing vaccine for children aged 1-6 years, preferably during the second year of life. This study assessed the immunogenicity and safety of a pentavalent combination vaccine containing diphtheria, tetanus, acellular pertussis, inactivated poliovirus, and conjugated-Hib polysaccharide antigens, [(DTaP-IPV//PRP-T (Pentaxim...

BACKGROUND Antibody levels wane rapidly after Meningococcal serogroup C conjugate (MenCC) vaccination in young children, rendering the need for an adolescent booster dose. It is not clear whether circulating memory B cells are associated with persistence of MenC-specific antibody levels. METHODS Measurement of MenC-specific IgG and IgA memory B cells and levels of serum and salivary MenC-spec...

Dual reflector antennas are considered as pencil beam antennas that can produce radiation identical to searchlight. Cassegrain Reflector Antenna Design consists of various effects caused by blockage by primary feed or by the subreflector and its effect on overall performance. The objective of the paper is to provide the overview of the designing approach that is used to design the axially symme...

we present a detailed analysis of the static tuning characteristics of three section tunable distributed bragg reflector (dbr) laser. the analysis is based on the transfer matrix method (tmm), transmission line and scattering theory. the key feature of the analysis is the use of modified oscillation condition. with the exact oscillation condition, the static tuning characteristics such as thres...

This paper is concerned with the design of a new type of multi-purpose deployable membrane reflector. The reflector structure consists of a central expandable hub, a number of thin-walled foldable ribs connected radially to the hub, and a precision-shaped membrane supported and tensioned by the ribs. This concept is known as a collapsible rib-tensioned surface reflector. A methodology for the d...