نتایج جستجو برای: 209 mm
تعداد نتایج: 205297 فیلتر نتایج به سال:
BACKGROUND There is increasing interest in the potential effects of polybrominated diphenyl ethers (PBDEs) on children's neuropsychological development, but only a few small studies have evaluated such effects. OBJECTIVES Our goal was to examine the association between PBDE concentrations in colostrum and infant neuropsychological development and to assess the influence of other persistent or...
BACKGROUND Patients with T4 N0 M0 melanoma are considered at high risk for having occult metastases, and adjuvant therapy is usually recommended. HYPOTHESIS Long-term survival in patients with thick melanoma is not universally poor. DESIGN A retrospective study. SETTING University teaching hospital. PATIENTS We evaluated clinical node-negative thick (> or = l4.0 mm) melanoma in 151 pati...
Gabriele Grandi 1,*, Jelena Loncarski 2 and Milan Srndovic 1 1 Department of Electrical, Electronic, and Information Engineering, University of Bologna, Viale Risorgimento 2, Bologna 40136, Italy; [email protected] 2 Department of Engineering Sciences, Ångström Laboratory, Uppsala University, Lägerhyddsvägen 1, Box 534, Uppsala S-751 21, Sweden; [email protected] * Correspo...
Indoor dust has been widely used to monitor flame retardants (FRs) in indoor environment, but most studies only focused on floor dust. In the present study, FRs were examined in indoor dust from different locations. Dust from air conditioner (AC) filters, beddings, floor, and windows in bedrooms, and dust from AC filters, printer table surface, computer table surface, floor, and windows in offi...
Ultra-pure, carrier-free (209)Po solution standards have been prepared and standardized for their massic alpha-particle emission rate. The standards, which will be disseminated by the National Institute of Standards and Technology (NIST) as Standard Reference Material SRM 4326a, have a mean mass of (5.169 ± 0.003) g of a solution of polonium in nominal 2.0 mol▪L(-1) HCl (having a solution densi...
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