Th e culprit in London’s killer fog wasn’t the fog itself. It was thousands of tons of tiny particles that clung to the stagnant fog and fi lled residents’ lungs. Th ick soot from the city’s coal-burning home hearths, diesel buses, and factories hung near the ground, trapped by a slow-moving temperature inversion. Black smoke concentrations measured during those fi ve days reached more than  ...

There are a large number of tools that can be utilized to forecast fog. Some of the tools were described in the paper “ Radiation Fog: UPS Airlines Conceptual Models and Forecast Methods” (Baker, et al., 2002). Several modules were also developed in the Distance Learning Aviation Course in 2004 which summarized a list of fog forecasting tools (UCAR, 2001). This paper will demonstrate the use of...

Fog is a kind of meteorological disaster, which has a serious impact on social economic activities and daily life of human beings. In this paper, the fog detection model based on the characteristics of HJ-1 satellite is put forward firstly. Then the model is tested by HJ-1B data and synchronous MODIS data in southern China at January 9, 2009. By comparing the experiment results of HJ data and M...

External cueing is a potentially effective strategy to reduce freezing of gait (FOG) in persons with Parkinson's disease (PD). Case reports suggest that three-dimensional (3D) cues might be more effective in reducing FOG than two-dimensional cues. We investigate the usability of 3D augmented reality visual cues delivered by smart glasses in comparison to conventional 3D transverse bars on the f...

This study investigated the risk factors for freezing of gait (FOG) in the early stage of Parkinson disease in China, using a sample of 248 patients who were followed for 3 years. Part III of the Unified Parkinson Disease Rating Scale and the modified Hoehn-Yahr grading scale were used to evaluate the severity of motor symptoms. Nonmotor symptoms were assessed using the Hamilton Anxiety Rating ...

Rapid changes in sexual traits are ubiquitous in evolution. To analyze this phenomenon, we are studying species of the genus Caenorhabditis. These animals use one of two different mating systems-male/hermaphroditic, like the model organism Caenorhabditis elegans, or male/female, like C. remanei. Since hermaphrodites are essentially females that produce sperm for self-fertilization, elucidating ...

INTRODUCTION Freezing of gait (FOG) is one of the most disabling and enigmatic symptoms in Parkinson's disease. Vascular lesions, observed in magnetic resonance imaging (MRI) scans, may produce or exacerbate this symptom. PATIENTS AND METHODS The study includes 22 patients with Parkinson's disease subjects, 12 with freezing of gait and 10 without. All patients underwent an MRI scan and any va...

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