Several of the auction-driven exchanges that facilitate programmatic buying of internet display advertising have recently introduced “soft floors” in addition to standard reserve prices (called “hard floors” in the industry). A soft floor is a bid level below which a winning bidder in the auction pays his own bid instead of paying the second-highest bid as in a standard second-price auction the...

Hospital floors are frequently contaminated with pathogens, but it is not known whether floors are a potential source of transmission. We demonstrated that a nonpathogenic virus inoculated onto floors in hospital rooms disseminated rapidly to the hands of patients and to high-touch surfaces inside and outside the room. Infect Control Hosp Epidemiol 2016;1-4.

Fire fighters are at risk of falling through fire-damaged floors. Fire burning underneath floors can significantly degrade the floor system with little indication to fire fighters working above. Floors can fail within minutes of fire exposure, and new construction technology such as engineered wood floor joists may fail sooner than traditional construction methods. NIOSH recommends that fire fi...

Claw health, an important dairy cow welfare parameter, may be affected by early-life foot/leg stresses. To investigate this, groups of pregnant heifers were allocated to deep straw bedding (Soft) or cubicles (Hard), both with scraped concrete feeding alleys. After the grazing season, they were re-housed in cubicle systems, half on slatted concrete (Hard) and half on slatted rubber (Soft) alleys...

This paper presents an animation which simulates construction process by applying tower cranes to assemble shared steel forms in a site of six buildings. Only two sets of steel forms are provided. The animation is simulated based on the length of a cycle .and the number of cycles (a unit period of time) spent for sliding slabs down and moving cranes to next building's location. The first case s...

OBJECTIVE To evaluate an intervention to prevent falls at a hospital. DESIGN A quasi-experimental intervention with historical and contemporaneous control groups. SETTING AND PARTICIPANTS Nursing staff and patients in the medicine service (comprising 2 intervention floors and 2 control floors) at an academic hospital. INTERVENTION Nursing staff were educated regarding fall prevention duri...

This paper explores the accuracy of Saleh-Valenzuela (SV) statistical simulation model in time of arrival domain (ToA) applied on inter-floor wide band indoor radio channels. In order to extract the model parameters, an extensive measurement campaign was performed inside a modern building by applying vector network analyzer method at frequency of 1.8 GHz. The measurement results are presented i...

We introduce a computational technique that accurately predicts performance for a given LDPC code in the error floor region. We present some results obtained by applying the technique and describe certain aspects of it.