A new technique is described for visualizing the subvalvular chamber of discrete membraneous subaortic stenosis. A Lehman ventriculography catheter is positioned so that its side holes lie within the chamber while its tip passes through the stenotic orifice into the body of the ventricle. A small amount of contrast injected directly into the subvalvular chamber outlines the membrane clearly. Du...

OBJECTIVES The use of complementary and alternative medicine (CAM) has grown substantially in North America and has drawn the attention of conventional-medicine practitioners. Conventional-medicine practitioners have expressed concern about the potential for unregulated CAM therapies to cause harm, the sometimes-uncertain cost-benefit ratios associated with these therapies, and the possibility ...

EDITOR—Use of buccal smears for the detection of numerical sex chromosome abnormalities has long been known. The facultative heterochromatin of the inactive X chromosome in the normal female is visible in Giemsa stained interphase nuclei as a condensed body, the Barr body. The active X is not visible. The constitutive heterochromatin of the long arm of the human Y chromosome, which varies great...

Species monitoring can be strongly limited by terrain accessibility, impeding our understanding of species ecology and thus challenging their conservation. This is particularly true for living in the canopy, on cliffs or dense vegetation. Remote sensing imagery may fill this gap offering a cost-effective approach allowing to improve detection inaccessible areas. We investigated applicability dr...

Abstract Societal grand challenges have moved from a marginal concern to mainstream issue within organization and management theory. How diverse forms of organizing help tackle – or reinforce has become centrally important. In this introductory paper, we take stock the contributions volume on Organizing for Grand Challenges identify three characteristics that require further scholarly attention...

Physio-chemical analysis of 200 soil samples collected from contaminated foci was investigated in six communities of Abua, Niger Delta Nigeria. The Jackson’s method was used in the chemical analysis of contaminated soils while Cobb’s decanting and sieving method was used in the extraction of geohelminths. The data showed that temperature, pH, Calcium (Ca), magnesium (mg), potassium (k) ions and...