Let $R$ be a ring, $sigma$ be an endomorphism of $R$ and $M_R$ be a $sigma$-rigid module. A module $M_R$ is called quasi-Baer if the right annihilator of a principal submodule of $R$ is generated by an idempotent. It is shown that an $R$-module $M_R$ is a quasi-Baer module if and only if $M[[x]]$ is a quasi-Baer module over the skew power series ring $R[[x,sigma]]$.

For the last three years I have been treating intermittent fevers in Bengal and the Punjab with doses of liquor arsenicalis, and am now in a position to speak contidently on the subject of its beneficial action as an antiperiodic and nervertoner, and advocate its employment as a safe and successful remedy in large dispensary practice. I have used it with the happiest results in several cases of...

For eleven years I begged my obstinate elderly father to allow a caregiver to help him with my ailing mother, who needed full-time care after a massive heart attack. But he adamantly insisted on taking care of her himself. Every caregiver I hired lasted about three days and then I'd get the familiar call: "Jacqueline, I just can't work with your father. His temper is impossible to handle. He sc...

Sir,?I noticed in the " British Medical Journal" of the 28th September last, page 719, a communication from Mr. Oldacres, M.B.C.S., that by handling the plant named Primula obconica an obstinate rash is produced, attended with dyspeptic symptoms. 1 beg to bring to your notice that there are two plants in this part of the country, very common in shady places, known as the Tragia eannaMna and Tra...

In this paper, we introduce the notion of fuzzy n-fold integral filter in BL-algebras and we state and prove several properties of fuzzy n-fold integral filters. Using a level subset of a fuzzy set in a BL-algebra, we give a characterization of fuzzy n-fold integral filters. Also, we prove that the homomorphic image and preimage of fuzzy n-fold integral filters are also fuzzy n-fold integral fi...