Study of accretion onto wormholes is rather rare compared to that black holes. In this paper, we consider flow cosmological dark energy modeled by barotropic fluid the celebrated Ellis–Bronnikov wormhole (EBWH) built Einstein minimally coupled scalar field ?, violating null condition. The accreting assumed be phantom, quintessence, dust and stiff matter. We begin first pointing out a mathematic...

OBJECTIVES This study evaluated the prevalence of dental trauma for patients attending the emergency dental clinic at the University of Alberta Hospital between 2006-2009. Patients' examination and treatment charts were reviewed. METHODS Total number of patients' charts was 1893.The prevalence of different types of trauma was 6.4 % of the total cases (117 patients). Trauma cases were identifi...

The static and spherically symmetric solutions in the $n(\ensuremath{\ge}4)$-dimensional Einstein-phantom-scalar system fall into three families: (i) Fisher solution, (ii) Ellis-Gibbons (iii) Ellis-Bronnikov solution. We exploit these as seed to generate a bunch of corresponding asymptotically (A)dS spacetimes, at price introducing potential scalar field. Despite that potentials are different f...

This book presents a collection of research articles brought together by the editors to illustrate how cultural-historical perspectives on learning and development can be used to analyze current problems with pre-service teacher education: incongruities between the university setting and school contexts, privileging of certain forms of learning over others in different sites (i.e., traditional ...

Histological grading is a good parameter to stratify tumors according to their biological aggressiveness. The Elston and Ellis grading method in humans, invasive ductal breast carcinomas and other invasive tumors are routinely used. The aims of this study were classification of mammary gland tumors and also application of a human grading method in canine mammary carcinoma. The samples included ...

BACKGROUND Coronary artery perforation (CAP) is a potentially lethal complication of percutaneous coronary intervention. We report on the incidence, clinical characteristics, and management of iatrogenic coronary perforations based on an 11-year single-center experience. METHODS AND RESULTS From February 9, 2005, through November 20, 2016, 150 CAP cases were identified from our percutaneous c...

In the Ellis wormhole metrics, we study characteristics of fluid dynamics and properties linear sound waves. By implying energy–momentum equation continuity in general relativistic manner, examine flow solve corresponding equations for a relatively simple case — radial flow. To waves, governing mentioned physical system are linearized solved interesting characteristic found.