Air quality monitoring networks are challenging to implement due the bulkiness and high prices of standard instruments low accuracy most described low-cost approaches. This paper presents a low-cost, automated, self-powered analytical platform determine hourly levels O3 NO2 in urban atmospheres. Atmospheric air was sampled at constant airflow 100 mL min−1 directly into vials containing 800 µL i...

This work asks how the syllable as a unit is delimited in space and time. To do this we bring together two theoretical approaches to syllable: sonority-based approach which emphasizes spatial organization, coupled oscillator model (Nam, Goldstein & Saltzman 2009) temporal organization. Many languages present challenges these theories, here focus on Georgian, problematic for both approaches,...

A typical problem with the traditional Galerkin approach for the construction of finitemode models is to keep structural properties untouched in the process of discretization. We present two examples of finite-mode approximations that in some respect preserve the geometric attributes inherited from their continuous models: a three-component model of the barotropic vorticity equation known as Lo...

The bulk of our current knowledge about articulatory/acoustic sig that elicit discrete prosodic variation intentionally produced by through continuous variation in tempo and hypo–hyper articulatio prosodic boundaries as a means of resolving low-level tempo an of structural affordance for a prosodic boundary comes under d tion patterns of the gestures in the vicinity of this affordance comprehen...

[1] Methyl chloride (CH3Cl) is a naturally occurring ozone-depleting gas with a complex biogeochemical cycle involving tropical vegetation, soils, biomass burning and the oceans. This study presents CH3Cl measurements in air extracted from a 300 m ice core from South Pole, Antarctica, covering the time period from 160 BC to 1860 AD. The data exhibit an increasing trend of 3 ppt (parts per trill...

This study evaluates the effects of phrase boundaries on the intra- and intergestural kinematic characteristics of blended gestures, i.e., overlapping gestures produced with a single articulator. The sequences examined are the juncture geminate [d(#)d], the sequence [d(#)z], and, for comparison, the singleton tongue tip gesture in [d(#)b]. This allows the investigation of the process of gestura...

[1] Methyl chloride (CH3Cl) is a naturally occurring ozone-depleting substance and a significant component of the atmospheric chlorine burden. In this study CH3Cl was analyzed in air bubbles from the West Antarctic Siple Dome deep ice core with gas ages ranging from about 65 kyr BP to the Late Holocene. CH3Cl levels were below the modern Antarctic atmospheric level of 530 ppt in glacial ice (45...