BACKGROUND The purpose of this study was to investigate the lifting characteristics of elders with functional limitations using burden lifting smoothness, trunk angular momentum, and back and hip torque, and to correlate these characteristics with strength and functional measures. METHODS Thirty elders (65-89 years old) consented to biomechanical analysis of lifting, gait, and chair rise, and...

Laser direct-write (LDW) techniques based on laser-induced forward transfer (LIFT) of functional materials offer unique advantages and capabilities for the rapid prototyping of electronic, optical and sensor elements as opposed to other digital printing processes like inkjet. LIFT processes have been applied to the fabrication of a wide variety of microelectronic elements such as interconnects,...

We examined the effects of aerodynamic forces on the mechanical power output of running insects for which kinematic data were available. Drag and lift on the cockroaches Periplaneta americana (a small, rapidly running species) and Blaberus discoidalis (a larger, more slowly moving species) were measured in a wind tunnel. Although lift would be expected to affect power output by altering functio...

Nowadays software systems are essential to the environment of most organizations, and their maintenance is a key point to support business dynamics. Thus, reverse engineering legacy systems for knowledge reuse has become a major concern in software industry. This article, based on a survey about reverse engineering tools, discusses a set of functional and nonfunctional requirements for an effec...

terms of indications. The authors seem to have dealt with various conditions of infection, including abscesses, fistulas and fistulous conditions without an external opening. In my opinion, the technical similarity, the differences in indications, and the small number of patients may prevent readers of this article from taking the results as a convincing outcome. There may be few surgeons who w...

An earlobe that appears aged or malpositioned can sabotage the results of a well performed face lift. The most frequently noted sign of a naturally aged earlobe is increased length. Improper planning of face lift incisions may also result in disfigurement of the ear. The author suggests simple excisional techniques to correct the aged earlobe, as well as methods to avoid subsequent earlobe dist...

Patients with thick skin mainly exhibit the aging processes of sagging, whereas patients with thin skin develop wrinkles or volume loss. Asian skin is usually thicker than that of Westerners; and thus, the sagging of skin due to aging, rather than wrinkling, is the chief problem to be addressed in Asians. Asian skin is also relatively large in area and thick, implying that the weight of tissue ...

Using a unique data set with 168 ski resorts located in France, this paper investigates the relationship between lift ticket prices and supply-related characteristics of ski resorts. A nonparametric analysis combined with a principal component analysis is used to identify the set of efficient ski resorts, defined as those where the lift ticket price is the cheapest for a given level of quality....

Gas-lifted oil wells are susceptible to failure through malfunction of gas lift valves (GLV). One failure mode occurs when the GLV check valve fails and product passes into the well annulus, potentially reaching the wellhead. This is a growing concern as offshore wells are drilled thousands of meters below the ocean floor in extreme temperature and pressure conditions and repair and monitoring ...