When it is Not Logically Necessary for a Necessary Condition of Value to be Valuable

A necessary condition for a Shearlet system to be a frame via admissibility

    Necessary conditions for  shearlet  and cone-adapted shearlet systems to be frames are presented with respect to the admissibility condition of generators.

A Necessary Condition for Weyl-Heisenberg Frames

Is It Necessary to Restrict Forex Financial Trading? A Modified Model

The Central Bank of Iran banned online currency trading through Forex brokers in November 2016. However, some Iranian speculators still trade in the online Forex market. Is this prohibition on Forex trading reasonable? According to reports, the majority of Forex day traders fail and leave the market within six months to a year. Some scholars attribute this failure to the changeable characterist...

Endometrial Assessment: When is it Necessary?

BACKGROUND Endometrial cancer is the fourth most common cancer among women and the most common malignant neoplasm of the female genital tract in the USA. The onset is usually after the age of 50 and prognosis depends on the stage of disease at diagnosis. We aimed at determining the prevalence of high-risk endometrial lesions in women of different ages to establish a protocol for the indication ...

vaccination against hepatitis a for hemophilic patients: is it necessary?

conclusions more than 40% of the hemophilic patients under 20 years of age in the present study had no immunity against hepatitis a, and 23% of hepatitis c patients had not had a hepatitis a co-infection yet. since hepatitis a can show a fulminant course in hepatitis c patients, vaccination against hepatitis a seems necessary in hemophilic patients in the region. background hemophilic patients ...