Comparative tests in vitro for antibacterial activity were carried out with ampicillin, tetracycline, and chloramphenicol using 673 clinical isolates of Gram-negative bacilli and Streptococcus faecalis. Further comparative tests were also carried out with ampicillin, chloramphenicol, colistin sulphate, colistin methane sulphonate, cycloserine, kanamycin, nitrofurantoin, polymyxin, streptomycin,...

BACKGROUND Ephedra is widely used in dietary supplements that are marketed to promote weight loss or increase energy; however, the safety of this product has been questioned because of numerous case reports of adverse events. OBJECTIVE To compare the risk for adverse events attributable to ephedra and other herbal products. DESIGN Comparative case series. SETTING American Association of P...

BACKGROUND There is a high incidence of low back pain (LBP) among nurses. However, few longitudinal studies have investigated musculoskeletal disorders (MSDs) at other anatomical sites in nurses. AIMS To describe the cumulative incidence and persistence/recurrence of MSDs of the low back, neck, shoulder, elbow, wrist/hand and knee among New Zealand nurses, to investigate the impact of MSDs on...

Two authors of this paper have shown that by using the frequency-response masking (FRM) technique for designing finite-impulse response (FIR) filters building a two-channel filterbank (FB) with rational sampling factors, the implementation complexity can be reduced compared with the use of direct-form filters for this purpose. In this paper, for designing FBs, a modified version of the FRM tech...

UNLABELLED Arterial line filters (ALFs) are arguably the most important component in the cardiopulmonary bypass circuit to protect the patient from gaseous macro- and micro-emboli (GME) originating in the perfusion circuit. The GME separating ability of 10 ALFs was ranked according to seven performance criteria. Ten ALFs rated between 20 and 43 microm were evaluated for flow resistance, the cou...