For stricter drinking water regulations in the future, reducing the humic acid and disinfection byproducts in raw water, namely, trihalomethanes (THMs) and haloacetic acids (HAAs) is worthy for research. To investigate the removal of waterborne organic material using a lab-scale of bio-activated carbon filter under different EBCT, the concentrations of humic acid prepared were 0.01, 0.03, 0.06,...

Pseudomonas aeruginosa is known to produce surfactants that are involved in its swarming motility behavior, such as rhamnolipids and their precursors-3-(3-hydroxyalkanoyloxy)-alkanoic acids (HAAs). In P. aeruginosa PAO1, swarming motility is inhibited by some fatty acids, including branched-chain fatty acids and unsaturated fatty acids. In the present study, addition of 12-methyltetradecano...

We present the clear evidence that the new Fermi surface structure exists in the interconnecting necks of L&6, which have been found by the acoustic de Haas-van Alphen effect.

The associations between cigarette smoking history and later cognitive performance were examined among 3,429 Japanese-American participants of the Honolulu Heart Program (HHP) and its extension, the Honolulu-Asia Aging Study (HAAS). Cognitive performance was measured by the Cognitive Abilities Screening Instrument (CASI), administered as part of HAAS (mean age at HAAS exam (standard deviation (...

We study the implications of bank lending for the term structure. Specifically, we consider how resources are optimally allocated between a banking sector and a risky sector. To do so, we use a “two trees” framework with a risky and risk free sector, in which capital moves sluggishly between the two. We characterize equilibrium and illustrate how financial flexibility affects the term structure...

News New Team Member Jochen Furthmüller Figure 1 New team member Jochen Furth-müller Since January Jochen Furthmüller (Fig. 1) is a member of the Telematics Insitute. He is part of the KIT Young Investigator Group led by Dr. Oliver Waldhorst. His research deals with mobile Grid systems. As he is a former ITM student assistant and he also did his diploma thesis at the ITM he is already familiar ...

HE fact that a posttreatment can abolish the mutations induced by a mutaTgenic agent can furnish a tool for the study of the metabolic conditions that are necessary for the completion of processes that begin with the mutagenic treatment and lead finally to mutation (WITKIN 1956; DOUDNEY and HAAS 1958, 1960). Different agents can produce a decrease in the mutation frequency after UV treatment: v...

Carcinogenic heterocyclic aromatic amines (HAA) are formed in cooked meats, poultry, and fish and arise in tobacco smoke. We measured the concentrations of four prevalent HAAs in spot urine samples collected at baseline from 170 participants of the Shanghai Cohort study, a population-based cohort study of adult men recruited during 1986 to 1989 in Shanghai, China. Sixteen (18.6%) of 86 nonsmoke...

AIM This study examined the effects on disinfection by-product (DBP) concentrations of common household methods for processing drinking water. METHODS We investigated the effects of refrigerator storage, jug filtering, boiling in an electric kettle, and supply from an instant boiling water unit, with or without filtering, on four species of trihalomethanes (THMs) and nine species of haloaceti...

Toxicologic studies have demonstrated associations between growth-related birth outcomes and exposure to high concentrations of disinfection by-products (DBPs), including specific trihalomethane (THM) and haloacetic acid (HAA) chemical subspecies. Few prior investigations of DBPs have evaluated exposure during the third trimester of pregnancy, the time period of gestation when fetal growth may ...