A Curious Physiological Phenomenon

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ashman phenomenon: a physiological aberration.

To cite: Singla V, Singh B, Singh Y, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2013009660 DESCRIPTION A 24-year-old woman presented with palpitations. She had a history of rheumatic heart disease with mild mitral stenosis and moderate mitral regurgitation. ECG (figure 1) showed atrial fibrillation with aberrant conduction suggestive of ‘Ashman’s pheno...

متن کامل

A curious instability phenomenon for a rounded corner in presence of a negative material

We study a 2D scalar harmonic wave transmission problem between a classical dielectric and a medium with a real-valued negative permittivity/permeability which models a metal at optical frequency or an ideal negative metamaterial. We highlight an unusual instability phenomenon for this problem when the interface between the two media presents a rounded corner. To establish this result, we provi...

متن کامل

Quorum sensing: the explanation of a curious phenomenon reveals a common characteristic of bacteria.

In the 1960s bacterial bioluminescence attracted increasing interest among microbiologists and biochemists. Plating seawater samples taken from virtually any place on the globe revealed the presence of bioluminescent bacteria, but at a rather low level of abundance, not more than a few cells per milliliter. A question frequently raised was what function the light emission might have in such “fr...

متن کامل

Thrombocytosis in low birthweight infants: a physiological phenomenon in infancy.

Prematurity has traditionally been connected with thrombocytopenia, although this is unlikely to be associated with prematurity itself but rather with serious illnesses in such infants. Platelet counts were measured in 117 healthy preterm infants with birthweights less than 2000 g, who were followed up from 2 weeks to 6 months. In this series the platelet counts were high compared with those in...

متن کامل

Vitality among Swedish patients with post-polio: a physiological phenomenon.

OBJECTIVE To evaluate vitality and fatigue in post-polio patients, and the relative contributions of physiological and psychological parameters to the level of vitality. DESIGN Multi-centre study. SUBJECTS One hundred and forty-three patients with post-polio syndrome. METHODS Inventories of background, quality of life, fatigue and sleep quality were used. Pain was evaluated using a visual...

متن کامل

ذخیره 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: Nature

سال: 1922

ISSN: 0028-0836,1476-4687

DOI: 10.1038/109044d0