User profiles for John Stevens

John Stevens

- Verified email at mivf.com.au - Cited by 8091

John R. Stevens

- Verified email at usu.edu - Cited by 6039

Extinction risk and conservation of the world's sharks and rays

…, SR Livingstone, JC Sanciangco, JD Stevens… - elife, 2014 - elifesciences.org
10.7554/eLife.00590.001 The rapid expansion of human activities threatens ocean-wide
biodiversity. Numerous marine animal populations have declined, yet it remains unclear …

A prospective randomized trial of blastocyst culture and transfer in in-vitro fertilization.

…, L Wagley, T Schlenker, J Stevens… - Human reproduction …, 1998 - academic.oup.com
The effectiveness of blastocyst culture and transfer in human in-vitro fertilization (IVF) was
evaluated in a prospective randomized trial in patients having a moderate to good response to …

You can swim but you can't hide: the global status and conservation of oceanic pelagic sharks and rays

…, JA Musick, A Soldo, JD Stevens… - Aquatic conservation …, 2008 - Wiley Online Library
Fishing spans all oceans and the impact on ocean predators such as sharks and rays is
largely unknown. A lack of data and complicated jurisdictional issues present particular …

Random forests

A Cutler, DR Cutler, JR Stevens - Ensemble machine learning: Methods …, 2012 - Springer
Random Forests were introduced by Leo Breiman [6] who was inspired by earlier work by
Amit and Geman [2]. Although not obvious from the description in [6], Random Forests are an …

[HTML][HTML] Blastocyst score affects implantation and pregnancy outcome: towards a single blastocyst transfer

DK Gardner, M Lane, J Stevens, T Schlenker… - Fertility and sterility, 2000 - Elsevier
Objective: To determine the relationship between blastocyst score and pregnancy outcome.
Design: Retrospective review of blastocyst transfer in an IVF clinic. Setting: Private assisted …

Dendritic spines of CA 1 pyramidal cells in the rat hippocampus: serial electron microscopy with reference to their biophysical characteristics

KM Harris, JK Stevens - Journal of Neuroscience, 1989 - Soc Neuroscience
Serial electron microscopy and 3-D reconstructions of dendritic spines from hippocampal area
CA 1 dendrites were obtained to evaluate 2 questions about relationships between spine …

Assessing personal, role, and organizational predictors of managerial commitment

JM Stevens, JM Beyer, HM Trice - Academy of management …, 1978 - journals.aom.org
Using a role and exchange theory framework, this study examines the commitment to their
organization and to the federal service of 634 managers in 71 federal government …

Plant–soil feedbacks: a meta‐analytical review

A Kulmatiski, KH Beard, JR Stevens… - Ecology letters, 2008 - Wiley Online Library
Plants can change soil biology, chemistry and structure in ways that alter subsequent plant
growth. This process, referred to as plant–soil feedback (PSF), has been suggested to …

Patterns of temporal lobe atrophy in semantic dementia and Alzheimer's disease

…, G Leschziner, AM Rossor, JM Stevens… - Annals of …, 2001 - Wiley Online Library
Volumetric magnetic resonance imaging analyses of 30 subjects were undertaken to quantify
the global and temporal lobe atrophy in semantic dementia and Alzheimer's disease. …

Mapping the evolution of regional atrophy in Alzheimer's disease: unbiased analysis of fluid-registered serial MRI

RI Scahill, JM Schott, JM Stevens… - Proceedings of the …, 2002 - National Acad Sciences
Alzheimer's disease (AD) is characterized by progressive cerebral atrophy, which may be
assessed by using volumetric MRI. We describe a voxel-based analysis of nonlinear-…