This paper uses a finite mixture model to uncover heterogeneous income tax rate perceptions, establishing four new results. First, almost half of respondents do not distinguish between marginal and average tax rates. Second, roughly 30 percent of respondents know the statutory marginal tax rates schedule (and answer questions accordingly). Third, among respondents who think all income is taxed ...

THOMAS F. TOMB, PAULS. PAROBECK, and ANDREW J. GERO Pittsburgh Health Technology Center, Mine Safety and Health Administration was greater than five percent. Such a formula was developed and is included in Parts 70.101, 71.101, and 90.101 of Title 30, Code of Federal Regulations (CFR). These regulations state that: "When the respirable dust in the mine atmosphere of the active workings contains...

RESULTS: Four hundred patients were referred with a diagnosis of “lymphedema”; 70% were female and 30% were children. Lymphedema was confirmed in 73% of the cohort: primary (56%) and secondary (44%). Twenty-seven percent of patients labeled with “lymphedema” had another condition. Before referral, only 4% of the cohort underwent lymphoscintigraphy (the gold standard diagnostic test for lymphede...

Hepatocellular carcinoma is one of the most common malignancies world wide. We present data on 76 patients admitted to the Shaikh Zayed Hospital. Mean age was 52.2 +/- 11.3 years. Eighty six percent were males and 14% females. Eighty-six percent patients had underlying cirrhosis documented on ultrasound examination. Seventy-five percent were positive for anti HCV, 10% for HBsAg positive, 10% fo...

introduction:  on  the  basis  of  percent  depth  dose  (pdd)  calculation,  the  application  of  dosimetry  in  radiotherapy  has  an  important  role  to  play  in  reducing  the  chance  of  tumor  recurrence. the aim of this study is to introduce a new formula for calculating the centeral axis  percent depth doses of cobalt-60 beam.   materials and methods: in the present study, based on ...

background around 30% of suicides are committed by burning. the problem of self-immolation remains a crisis even after population based interventions and still a considerable proportion of admissions of burn ward is belonged to suicide cases. objectives this study was designed to present the epidemiologic profile of these patients and compare completed self-immolation and attempted ones. patien...

This paper describes a simple means for embedding a checksum within a FITS header, providing a mechanism for later verifying the integrity of the FITS le. The method uses ASCII coded 32-bit 1's complement arithmetic to force the checksum of each FITS HDU to zero. This technique requires no extension of the FITS standard to be used by any given project, in fact the technique may be used to zero ...

The second author’s ω, ∆, χ conjecture proposes that every graph satisties χ ≤ d 1 2 (∆ + 1 + ω)e. In this paper we prove that the conjecture holds for all claw-free graphs. Our approach uses the structure theorem of Chudnovsky and Seymour. Along the way we discuss a stronger local conjecture, and prove that it holds for claw-free graphs with a three-colourable complement. To prove our results ...

botnet infections every month, 60,000 new pieces of malware per day, and 60 percent of top Google search terms returning links to malicious sites within the first 100 results (www. mca fee.com/us/about/news/ 2010/q4/20101117-01.aspx). In fact, Cisco has reported that 10 percent of all Web malware is encountered through search engine traffic, with Google being the largest search engine provider ...

Facial rhytides are a common problem that often presents for treatment. Because of the tendency for rhytides to involve delicate tissue areas, traditional treatment modalities have been limited by complications of scarring or pigmentary alterations. With the advent of the new-generation high-energy pulsed carbon dioxide lasers, skin requiring resurfacing can now be treated successfully with min...