BACKGROUND Children are a high-risk group vulnerable to the effects of chronic aircraft noise exposure. This study examines the effects of aircraft noise exposure on children's health and cognition around London Heathrow airport and tests sustained attention as an underlying mechanism of effects of noise on reading and examines the way children adapt to continued exposure to aircraft noise. M...

Noise, as the most common physical agent in workplace, not only causes hearing loss but also leads to various diseases, such as hypertension and cardiovascular disease. Sound is likely to stimulate and increase the secretion of adrenal catecholamines, and may have an indirect role in the pathogenesis of diseases caused by stress. This study was performed to investigate the effect of noise on ur...

OBJECTIVE To investigate whether drivers of convertible cars are exposed to excessive noise levels. STUDY DESIGN Prospective. SETTING Data were collected along a main United Kingdom highway. SUBJECTS AND METHODS Seven cars were included within the study, encompassing a range in cost, power, and comfort. A calibrated, integrating noise meter was used to measure average noise levels (Leq dB...

Soundscape is a sound environment that emphasizes the awareness of auditory perception and social or cultural understandings. The case of spatial perception is significant to soundscape. However, previous studies on the auditory spatial perception of the soundscape environment have been limited. Based on 21 native binaural-recorded soundscape samples and a set of auditory experiments for subjec...

Trends in precipitation chemistry and hydrologic and climatic data were examined as drivers of long-term changes in the chemical composition of high-elevation lakes in three wilderness areas in Colorado during 1985–2008. Sulfate concentrations in precipitation decreased at a rate of -0.15 to -0.55 leq/l/year at 10 high-elevation National Atmospheric Deposition Program stations in the state duri...

OBJECTIVES This study investigated the actual situation of noise and low-frequency sounds in firework events and their impact on pyrotechnicians. METHODS Data on firework noise and low-frequency sounds were obtained at a point located approximately 100 m away from the launch site of a firework display held in "A" City in 2013. We obtained the data by continuously measuring and analyzing the e...

Using the auroral boundary index derived from DMSP electron precipitation data and the Dst index, changes in the size of the auroral belt during magnetic storms are studied. It is found that the equatorward boundary of the belt at midnight expands equatorward, reaching its lowest latitude about one hour before Dst peaks. This time lag depends very little on storm intensity. It is also shown tha...

Given three nonnegative integers $p,q,r$ and a finite field $F$, how many Hankel matrices $\left( x_{i+j}\right) _{0\leq i\leq p,\ 0\leq j\leq q}$ over $F$ have rank $\leq r$ ? This question is classical, the answer ($q^{2r}$ when $r\leq\min\left\{ p,q\right\} $) has been obtained independently by various authors using different tools (Daykin, Elkies, Garcia Armas, Ghorpade Ram). In this note, ...

We obtain an improved Fourier restriction estimate for a truncated cone using the method of polynomial partitioning in dimension $n\\geq 3$, which particular solves conjecture $n=5$, and recovers sharp range $3\\leq n\\leq 4$. The main ingredient proof is $k$-broad extension operator, weak version $k$-linear $2\\leq k\\leq n$.