Dean Fulgoni, Jordan Carpenter, Lyle Ungar, Daniel Preoţiuc-Pietro Computer and Information Science, 3330 Walnut St.,Philadelphia, PA 19104 Positive Psychology Center, 3701 Market St., Philadelphia, PA 19104 University of Pennsylvania [email protected], [email protected], [email protected], [email protected] Abstract News sources frame issues in different ways in order to appeal...

As slide shows go, it wasn't even in the same league as your aunt's vacation snapshots, but the audience was paying close attention: there was going to be a quiz. In one sequence a student sitting in a packed lecture hall topples onto the floor. In others, a hand retrieves oranges that have rolled all over a supermarket, and a woman picks up groceries scattered across a floor. Between 15 minute...

Until recently, growth stress studies have been made only on coniferous and dicotyledonous trees. Growth stress of trees is thought to be initiated in newly formed secondary xylem cells. This stress can accumulate for years and is distributed inside the trunk. Major characteristics of the trunk of monocotyledonous trees include numerous vascular bundles scattered inside the ground tissue and th...

[Purpose] This study was aimed at investigating the influence of seat height and body posture on the activity of the superior trapezius and longissimus muscles. [Subjects and Methods] Twenty two healthy subjects were instructed to perform a total of eight different body postures, varying according three main factors: seat height (low and high seat); trunk inclination (upright and leaning forwar...

OBJECTIVES/HYPOTHESIS Persistent direction-changing positional nystagmus (DCPN) during the supine head-roll test is a typical finding of cupulopathy. The aim of this study was to introduce a simple method of evaluating patients with cupulopathy (light cupula and heavy cupula), which is performed in a seated position, and investigate its diagnostic utility and use for lateralization. STUDY DES...

AIMS Assess and compare among Dutch cardiothoracic surgeons and cardiologists: opinion on (1) patient involvement, (2) conveying risk in aortic valve selection, and (3) aortic valve preferences. METHODS AND RESULTS A survey among 117 cardiothoracic surgeons and cardiologists was conducted. Group responses were compared using the Mann-Whitney U test. Most respondents agreed that patients shoul...

Maximal static inspiratory and expiratory pressures (Pimax and Pemax) were measured in six different positions in 40 patients with advanced chronic airflow limitation and in 140 normal subjects to determine whether posture influences respiratory muscle strength. Patients with chronic airflow limitation were studied on days 1 and 5 of an acute exacerbation. There was no postural effect on maxima...

The lumbar spines of 25 long-distance runners were examined using an upright magnetic resonance imaging scanner. All volunteer runners were scanned before and after running for 1 h. Scanning was performed with the runners seated upright (neutral), leaning forwards (flexion) and leaning backwards (extension). All measured discs showed a reduction in disc height after 1 h of running. A significan...

Activation of back musculature during work tasks leads to fatigue and potential injury. This is especially prevalent in dentists who perform much of their work from a seated position. We examined the use of an ergonomic dental stool with mid-sternum chest support for reducing lower back muscle activation. Electromyography of lower back extensors was assessed from 30 dental students for 20 s dur...