منابع مشابه
It was not known about simple cycles
A proper edge t-coloring of a graph is a coloring of its edges with colors 1, 2, ..., t such that all colors are used, and no two adjacent edges receive the same color. For any integer n ≥ 3, all possible values of t are found, for which there exists such a proper edge t-coloring of the simple cycle C(n), which uses for each pair of adjacent edges either consecutive colors or the first and the ...
متن کاملMultiple pulmonary nodules: and if it was not a cancer.
A 72-year-old woman was admitted in the Cardiology Department for respiratory insufficiency. ECG revealed atrial fibrillation, and echocardiography revealed heart failure with an estimated left ventricular ejection fraction of 25%. Chest roentgenogram revealed multiple nodules, and chest CT scan revealed multiple dense nodules surrounded by ground-glass attenuation (halo sign) with unilateral p...
متن کاملMultiple sclerosis: it's not the disease you thought it was.
Multiple sclerosis (MS), the most common disabling neurologic disease of young people, afflicts approximately a quarter of a million Americans. The symptoms of MS result from recurrent attacks of inflammation in the central nervous system, which probably occur through an autoimmune mechanism. The target of the immune attack is myelin, the lipoprotein sheath that surrounds the axons and insulate...
متن کاملIt was logical but was it the whole truth?
Calcific aortic stenosis (AS) was initially characterized as a degenerative process (disorder) because of a tendency to describe any disorder that was not well understood and often occurred in the ‘elderly’ as degenerative. In the last ‘15–20’ years, the observation of the presence of risk factors for arterial atherosclerosis in patients with calcific AS, the production of aortic valve calcific...
متن کاملMarine sediments tell it like it was.
W e live in a constantly changing environment. Although some changes are natural and therefore beyond our control, there is no question that many anthropogenic activities have dramatically altered our planet. The ‘‘human footprint’’ is now discernable around the globe, so much so that Crutzen (1) proposed a new geological epoch (the Anthropocene) to delineate the recent human-dominated era of E...
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: Journal of Anesthesia
سال: 2019
ISSN: 0913-8668,1438-8359
DOI: 10.1007/s00540-019-02716-3