Search Results - "Butler, P J"

The roller coaster flight strategy of bar-headed geese conserves energy during Himalayan migrations by Bishop, C. M., Spivey, R. J., Hawkes, L. A., Batbayar, N., Chua, B., Frappell, P. B., Milsom, W. K., Natsagdorj, T., Newman, S. H., Scott, G. R., Takekawa, J. Y., Wikelski, M., Butler, P. J.

“…The physiological and biomechanical requirements of flight at high altitude have been the subject of much interest. Here, we uncover a steep relation between…”
Get full text

Universal behavior of the osmotically compressed cell and its analogy to the colloidal glass transition by Zhou, E.H, Trepat, X, Park, C.Y, Lenormand, G, Oliver, M.N, Mijailovich, S.M, Hardin, C, Weitz, D.A, Butler, J.P, Fredberg, J.J

“…Mechanical robustness of the cell under different modes of stress and deformation is essential to its survival and function. Under tension, mechanical rigidity…”
Get full text

Measuring Metabolic Rate in the Field: The Pros and Cons of the Doubly Labelled Water and Heart Rate Methods by Butler, P. J., Green, J. A., Boyd, I. L., Speakman, J. R.

“…1. Measuring the metabolic rate of animals in the field (FMR) is central to the work of ecologists in many disciplines. In this article we discuss the pros and…”
Get full text

Computed tomographic measures of airway morphology in smokers and never-smoking normals by Washko, G R, Diaz, A A, Kim, V, Barr, R G, Dransfield, M T, Schroeder, J, Reilly, J J, Ramsdell, J W, McKenzie, A, Van Beek, E J R, Lynch, D A, Butler, J P, Han, M K

“…Bronchial wall area percent (WA% = 100 × wall area/total bronchial cross sectional area) is a standard computed tomographic (CT) measure of central airway…”
Get full text

Discovery of coesite-eclogite from the Nordøyane UHP domain, Western Gneiss Region, Norway: field relations, metamorphic history, and tectonic significance by BUTLER, J. P., JAMIESON, R. A., STEENKAMP, H. M., ROBINSON, P.

“…Ultrahigh‐pressure (UHP) rocks from the Western Gneiss Region (WGR) of Norway record subduction of Baltican continental crust during the Silurian to Devonian…”
Get full text

Insights into Puberty: The Relationship between Sleep Stages and Pulsatile LH Secretion by Shaw, N. D, Butler, J. P, McKinney, S. M, Nelson, S. A, Ellenbogen, J. M, Hall, J. E

“…Context: During the pubertal transition, LH secretion initially increases only during sleep; however, its relationship to sleep stage is unknown. Objectives:…”
Get full text

Accumulated Deep Sleep Is a Powerful Predictor of LH Pulse Onset in Pubertal Children by Shaw, N. D, Butler, J. P, Nemati, S, Kangarloo, T, Ghassemi, M, Malhotra, A, Hall, J. E

“…Context: During puberty, reactivation of the reproductive axis occurs during sleep, with LH pulses specifically tied to deep sleep. This association suggests…”
Get full text

Physiology of diving of birds and mammals by Butler, P J, Jones, D R

“…This review concentrates on the physiological responses, and their control, in freely diving birds and mammals that enable them to remain submerged and…”
Get more information

Are bio-telemetric devices a drag?: Effects of external tags on the diving behaviour of great cormorants by Vandenabeele, S. P., Shepard, E. L. C., Grémillet, D., Butler, P. J., Martin, G. R., Wilson, R. P.

“…Externally attached remote-sensing devices used to study animals in their environment are a possible source of disturbance, notably in terms of drag, for…”
Get full text

Changes in dive profiles as an indicator of feeding success in king and Adélie penguins by Bost, C.A., Handrich, Y., Butler, P.J., Fahlman, A., Halsey, L.G., Woakes, A.J., Ropert-Coudert, Y.

“…Determining when and how deep avian divers feed remains a challenge despite technical advances. Systems that record oesophageal temperature are able to…”
Get full text

Heart rate and the rate of oxygen consumption of flying and walking barnacle geese (Branta leucopsis) and bar-headed geese (Anser indicus) by Ward, S, Bishop, C M, Woakes, A J, Butler, P J

“…We tested the hypotheses that the relationship between heart rate (fH) and the rate of oxygen consumption ((O(2))) differs between walking and flying in geese…”
Get full text

Regional rheological differences in locomoting neutrophils by Yanai, M, Butler, J P, Suzuki, T, Sasaki, H, Higuchi, H

“…Intracellular rheology is a useful probe of the mechanisms underlying spontaneous or chemotactic locomotion and transcellular migration of leukocytes. We…”
Get more information

Heart rate and energetics of free-ranging king penguins (Aptenodytes patagonicus) by Froget, G, Butler, P J, Woakes, A J, Fahlman, A, Kuntz, G, Le Maho, Y, Handrich, Y

“…The main objective of this study was to determine heart rate (fh) and the energetic costs of specific behaviours of king penguins while ashore and while…”
Get full text

A Comparative Analysis of the Diving Behaviour of Birds and Mammals by Halsey, L. G., Blackburn, T. M., Butler, P. J.

“…1. We use a large interspecific data set on diving variables for birds and mammals, and statistical techniques to control for the effects of phylogenetic…”
Get full text

Kinematically irreversible acinar flow: a departure from classical dispersive aerosol transport theories by Henry, F. S, Butler, J. P, Tsuda, A

“…1  School of Engineering, City University, London EC1V 0HB, United Kingdom; and 2  Physiology Program, Harvard School of Public Health, Boston, Massachusetts…”
Get full text

Mechanotransduction Across the Cell Surface and Through the Cytoskeleton by Wang, Ning, Butler, James P., Ingber, Donald E.

“…Mechanical stresses were applied directly to cell surface receptors with a magnetic twisting device. The extracellular matrix receptor, integrin $\beta_1$,…”
Get full text

Effect of copper-impregnated composite bed linens and patient gowns on healthcare-associated infection rates in six hospitals by Butler, J.P.

“…Hospital linens and patient gowns are frequently touched and contaminated, and may contribute to endogenous, indirect-contact, and aerosol transmission of…”
Get full text

The effects of acclimation to reversed seasonal temperatures on the swimming performance of adult brown trout Salmo trutta by Day, N, Butler, P J

“…Adult brown trout (Salmo trutta) were acclimatised to and maintained at seasonal temperatures (5 degrees C in winter; 15 degrees C in summer) and acclimated to…”
Get full text

Geometric hysteresis of alveolated ductal architecture by Kojic, M, Butler, J P, Vlastelica, I, Stojanovic, B, Rankovic, V, Tsuda, A

“…Low Reynolds number airflow in the pulmonary acinus and aerosol particle kinetics therein are significantly conditioned by the nature of the tidal motion of…”
Get more information

Behavioural flexibility during year-round foraging in macaroni penguins by Green, J. A., Boyd, I. L., Woakes, A. J., Warren, N. L., Butler, P. J.

“…Penguins are major consumers in the marine environment. However, like many top predators, very little information exists on their foraging behaviour outside…”
Get full text