منابع مشابه
How strange a non-strange heavy baryon?
We give some general arguments in favor of the large magnitude of matrix elements of an operator associated with nonvalence quarks in heavy hadrons. We estimate matrix element 1 2mΛb 〈Λb|s̄s|Λb〉 ≃ 1 ÷ 2 for Λb baryon whose valence content is b, u, d quarks. This magnitude corresponds to a noticeable contribution of the strange quark into the heavy baryon mass 1 2mΛb 〈Λb|mss̄s|Λb〉 ≃ 200 ÷ 300MeV ....
متن کاملThe strange case of a sub - DLA with very little HI
We report a deep search for HI 21cm emission from the z = 0.00632 sub-DLA toward PG1216+069 with the Giant Metrewave Radio Telescope. No emission was detected and our 5σ upper limit on the mass of any associated galaxy is MHI . 107 M⊙, nearly 3 orders of magnitude less than M⋆HI. The z ∼ 0.006 absorber is thus the most extreme known deviation from the standard paradigm in which high column dens...
متن کاملIn a Strange Land
Ignorance of the culture and traditions of immigrants leads to misunderstanding and is a factor in mental illness among people whose new home seems intimidating as Dr. Farrukh Hashmi, a psychiatrist and a member of the Midlands Race Relations Board, explains. an immigrant was taken to a mental hospital because he was said to have been aggressive, had been shouting at his family, and he had thre...
متن کاملA strange gait.
A 5-year-old afebrile girl presented to the office with an antalgic limp and left foot pain that lasted 3 weeks. On physical examination, swelling and redness were present and the top of the midfoot was painful to touch. Weight-bearing radiographs of the 2 feet were obtained (Figures 1-3; Figures 1 and 2 available at www.jpeds.com). The left foot navicular bone appears “wafer like”—flattened wi...
متن کاملVery low HbA1C, is it a problem?
Dear Editor An important problem to manage diabetes mellitus is controlling the patients` blood glucose. Fluctuation of blood glucose results in molecular biochemistry change and can result in unwanted diabetic complications (1). In clinical practice, hemoglobin A1C (HbA1C) is a common useful laboratory test to follow-up patients with diabetes (2). Sometimes, an unexpecte...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Thorax
سال: 2014
ISSN: 0040-6376,1468-3296
DOI: 10.1136/thoraxjnl-2014-206033