10/9/2013· Dental - Dentistry
Cone Beam Computed Tomography for Evaluation of Impacted Teeth: Case Report
Supernumerary teeth in the absence of syndromes such as cleidocranial dysplasia or Gardner's is a rare event1-3. The most common supernumerary tooth is the mesiodens which appears in the maxillary midline.3 The exact etiology of supernumerary teeth is unclear but many theories exist in an attempt to explain why extra teeth are present in some individuals.
9/27/2013· Warnings & Labels
Do Football Helmet Warnings Prevent Injury?
Anyone who bas seen a football helmet in recent days may be swprised at the bluntness of the warnings advising players that the very product they are wearing to prevent injury may not do that at all. For example, the warning that appears inside helmets manufactured by both Schutt Sports and Rawlings contain Oris conclusion:
9/27/2013· Construction
Discrete Damages/Cost Variance Analysis Method for Quantifying Damages in Construction Claims
The "discrete damages/cost variance analysis method" for quantifying construction claim damages involves the specific distribution of all costs incurred on the project rather than quantifying only certain parts of the cost or damage analysis as may be used in the other methods.
9/26/2013· Failure Analysis
Forensic Clues: Seat Belt Failure
In 2007, an estimated 15,147 lives were saved from seat belt use. Seat belts save five times more lives than airbags, according to statistics released by NHTSA. Seat belt use has increased over the years, due to cultural trends, and possibly due to the enactment of seat belt use laws. Seat belt systems do not always function as predicted. Seat belt systems can fail during a collision, often resulting in serious injury or death to the vehicle occupant.
9/24/2013· Transportation
Buses and Motorcoaches: The Steel Wave
By: Ned Einstein
There are plenty of things obvious to almost any adult, motorist or pedestrian about large vehicles. The most obvious is their size and mass. But at the other end of the spectrum lie nuances rarely understood by anyone who has not driven a vehicle with a long wheelbase: The way such a vehicle turns, and the way its tires "track" compared to those of a typical automobile, van or pickup truck.
9/23/2013· Elevators - Escalator - Automatic Doors
The Ins and Outs of Automatic Door Operation
By: Michael Panish
A basic primer in how they work, what to look for, and how to analyze defects vs. deferred maintenance. Expert door contractor, Michael Panish, takes you through the basics for your case. A basic primer about Automatic Door functions.
9/19/2013· Psychiatry
Peritraumatic Reactions and Posttraumatic Stress Disorder in Psychiatrically Impaired Youth
We examine the consumer-welfare implications of Google's project to scan a large proportion of the world's books into digital form and to make these works accessible to consumers through Google Book Search (GBS). In response to a class action alleging copyright infringement, Google has agreed to a settlement with the plaintiffs, which include the Authors Guild and the Association of American Publishers.
9/10/2013· Oil & Gas
Creating World Certainty Via Petroleum Price Stability
The certainty created by a set price for petroleum should tend to create stability in many other sectors of the economy. Certainty in petroleum pricing should lead to certainty in the industrial sector and to a degree of certainty in the world’s financial sectors, namely less volatility for interest rates and other debt instruments. A higher level of certainty in the financial markets and the petrochemical markets should foster an arena for world growth and stability.
9/4/2013· Construction
Developing Subcontract Pricing As Applied to Building Construction
ABSTRACT - This paper provides guidelines to commercial construction cost engineers for the development of a plan for obtaining and utilizing subcontractor cost information for use in bidding, procurement, scheduling, change order management, and claim management. The paper is based upon personal field experience gained in cost engineering, scheduling, bidding, planning, contracting, and claim analyses.
8/26/2013· Accident Investigation & Reconstruction
Forensic Clues: Tractor Accidents and Rollover Protective Structures
Farming is a dangerous occupation. Tractor rollover accidents have been killing people since the 1920's. In 1990, the National Safety Council estimated 460 people were killed while operating tractors. Tractor rollover caused 239 of these fatalities. Another estimate suggests a more conservative number of annual fatalities - 132, that are the result of tractor rollover accidents. In a four-year period in Pennsylvania alone, 72 people died as a result of tractor rollover accidents.
