Results 251 to 260 of about 158,369 (302)

Factors associated with selective fiberoptic bronchoscopy use after left double-lumen tube placement. [PDF]

BMC Anesthesiol
Küçük O, Zengin M, Sazak H, Kaybal O, Ülger G, Baldemir R, Tunç M, Yalçın FÖ, Alagöz A.   +8 more
europepmc   +1 more source

Artificial intelligence in breaking the learning curve for echocardiography: a secondary analysis of a multicentre trial. [PDF]

Eur Heart J Digit Health
Schissel C, Trotzky D, Avisar N, Amar T, Kezurer I, Spiegelstein D, Baugh CW, Duggan NM, Shah S, Ganatra S, Dani S, Goldsmith A.   +11 more
europepmc   +1 more source

Ultrasonographic whirlpool sign in ovarian torsion with dual mature teratomas: A case report and literature review. [PDF]

Med Int (Lond)
Varra FN, Fasoulopoulos A, Spathi E, Tzirou O, Varra VK, Varras M.   +5 more
europepmc   +1 more source

The Role and Feasibility of Automated Breast Ultrasound in the Evaluation of Male Breast Disease: Workflow Efficiency and Imaging Spectrum. [PDF]

Cureus
Eren A, Karatay E, Durur-Subasi I.
europepmc   +1 more source

A continued fraction representation of the mass operator

Canadian Journal of Physics, 1976
We explore some further possibilities of application of the projection operator method of Zwanzig to the theory of Green's functions of quantum statistical mechanics, initiated by lchiyanagi, and present a continued fraction representation of the mass operator involving a hierarchy of the random forces.
Dipak K. Saraswati
openaire   +2 more sources

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The mass operator in Riemannian spacetimes

Foundations of Physics, 1980
There is no unique way to generalize the mass operator 0 2 −p · p to curved spacetimes. The possible generalizations using either an analytic or an algebraic (group-theoretic) approach are discussed. We investigate in detail three possibilities: (i) the generalized D'Alembertian
S Malin, Malin S
exaly   +2 more sources