Monthly Archives: December 2023

Protons and hydroxide ions in the aqueous layer influence this surface charge

To a first approximation, the rate at which soiling occurs via partitioning is independent of surface orientation. Vertical surfaces soil at rates similar to horizontal surfaces. The surface accumulation resulting from partitioning is commonly referred to as a “film.” We … Continue reading

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Reactions with ozone or hydroxyl radicals form secondary organic aerosols

Given the presence of amines in outdoor air that ventilates buildings, amines are also common constituents of indoor air, including airborne particles, and in indoor surface films. Indoor sources of amines, in addition to outdoor-to-indoor transport, include smoking; cooking; anticorrosive … Continue reading

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Nicolaides319 reported that fatty acids comprise about 25% of skin surface lipids

Mean outdoor values for palmitic and stearic acids were each in the approximate range 40-80 ng/m3. The mean I/O ratio for palmitic acid was 2.1 during cooler weather and 5.8 for warmer periods. The mean I/O ratio for stearic acid … Continue reading

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The concentrations of NO2 and NO were not affected by humans in the chamber

The lower average values for HONO in AC homes may partially reflect HONO loss to the air conditioner condensate. Dividing these same 58 homes between those with gas stoves and those without, average HONO concentrations were 0.8 ± 0.8 ppb … Continue reading

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Dermal emission rates were found to be substantially larger than breath emission rates

Although most of the experiments measured whole-body emission rates, a subset of experiments measured dermal and breath emissions separately. Over the range of conditions studied, the measured NH3 emission rates ranged from 0.4 to 5.4 mg h-1 person-1 . These values … Continue reading

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Humidity may play a role in sensory perception of indoor environmental quality

Novel medications and novel biological targets call for careful assessment of mechanisms beyond the “usual suspects”, such as changes in mean levels of subjective response and alcohol craving. Ultimately, the combination of multiple scientific approaches, including human laboratory, DDAs, neuroimaging, … Continue reading

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There was no significant difference in the detection frequencies between mothers and children

The ELISA was performed using 96-well high binding micro titer plates coated with coating antigen cAg06 , washed with 10mM phosphate buffered saline + 0.05% Tween 20 , blocked with 0.5% bovine serum albumin in PBS. All standards, quality control … Continue reading

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Hepatitis C virus infection status was categorized as HCV negative if HCV antibody testing was negative

To the best of our knowledge, there has not been a published report that has followed HIV+ individuals and MSM longitudinally over an extended period to characterize the natural history of their marijuana use. Past studies on substance use patterns … Continue reading

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Prospective studies have also demonstrated an increased risk of ARDS among smokers

In 2014, PM less than 10 mm in diameter and less than 2.5 mm in diameter accounted for at least 3 million deaths and 85 disability-adjusted life years, primarily because of impacts on chronic cardiovascular and pulmonary conditions.Recently, air pollution in the … Continue reading

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Counts and rates were not reported when n < 16 to protect the identity of individuals in the dataset

Specific to being a sexual minority, GBM who were not out about their gay identity were less likely to report having any other mental health condition at the univariable level than those who were open about being gay. We posit that this … Continue reading

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