Biomedical subjects

M C Hamilton

Publications and source records attributed to M C Hamilton.

14 recordsLinked to original sources

PubMed2003

Destruction of the World Trade Center and PCBs, PBDEs, PCDD/Fs, PBDD/Fs, and chlorinated biphenylenes in water, sediment, and sewage sludge.

Ash-laden runoff samples collected near Ground Zero soon after the September 11, 2001 attack on the World Trade Center (WTC) and subsequent fire demonstrate the release of polychlorinated biphenyls (PCBs), polybrominated dipheyl ethers (PBDEs), polybrominated dibenzo-p-dioxins and polybrominated dibenzofurans (PBDD/Fs), polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs), and tetra- and pentachlorinated biphenylenes (PCBPs) from the incident. Relative abundances of PCDD/F congeners in the runoff water and post-disaster lower Manhattan dust samples were different from those seen in pre-disaster NYC combined sewer outfall (CSO) samples. The WTC-related samples showed a greater relative abundance of 2,3,4,7,8-PeCDF than usually seen in CSOs, sludges, and treated wastewaters. This congener may be associated with certain types of incineration. Comparison of sediment and water samples collected in the lower Hudson River before and shortly after September 11, 2001 (9/11) showed no changes in PCB or PCDD/F concentrations or homologue profiles determined down to the parts per quadrillion range. Comparisons of ambient water samples collected post-9/11 with archived samples suggest that the WTC disaster did not significantly impact ambient concentrations of the target chemicals. Ambient concentrations of PBDD/Fs in New York Harbor are similar to those of PCDD/Fs, suggesting that these contaminants deserve increased scrutiny with respect to toxicity, sources, and fate in the environment.

Aircraft↗

PubMed1994

Persistent MAPI scale 6 elevations after inpatient treatment.

Of 81 adolescent inpatients with elevated (> 74) admission scores on scale 6 (forceful/antisocial) of the Millon Adolescent Personality Inventory (MAPI; Millon, Green, & Meagher, 1982), 44 (54.32%) continued to have elevated scale 6 scores on the discharge administration of the test. These 44 subjects (labeled High 6) did not differ significantly from the other 37 subjects (labeled Low 6) on several variables that have been associated with conduct disturbance. The two groups did differ significantly, however, on family size, parental (especially paternal) psychopathology, and prognosis. The High 6 group tended to come from larger families, had a higher frequency of parental pathology, and more often received negative prognoses than did the Low 6 group. A discriminant function analysis conducted on the MAPI expressed concerns scales on the admission administration of the test resulted in a 76.54% correct classification of subjects into the High 6 and Low 6 groups. In general, the High 6 subjects appeared less troubled and more trouble than those subjects in the Low 6 group. The findings of this study demonstrate the potential of the MAPI as a component in the assessment of the treatment amenability of adolescents with disruptive behavior disorders.

Adolescent↗

PubMed1971