Search Results - "Lucas, P.W."

Influence of indenter geometry on the frictional sliding resistance of tooth enamel by M.V. Swain, S. Michael, L.A. Thai, P.W. Lucas

“…Indentation force-displacement and sliding scratch resistance measurements have been conducted on orangutan tooth enamel. Tests were made with a corner-cube…”
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Fracture Modes in Human Teeth by Lee, J.J.-.W., Kwon, J.-Y., Chai, H., Lucas, P.W., Thompson, V.P., Lawn, B.R.

“…The structural integrity of teeth under stress is vital to functional longevity. We tested the hypothesis that this integrity is limited by fracture of the…”
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Damaged! A new overview of dental wear by Lucas, P.W, Omar, R

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FOOD TEXTURE AND ITS EFFECT ON INGESTION, MASTICATION AND SWALLOWING by LUCAS, P.W., PRINZ, J.F., AGRAWAL, K.R., BRUCE, I.C.

“…ABSTRACT The oral processing of most semisolid and solid foods can be summarized in terms of two opposing mechanical influences: forces that fracture food…”
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Comparison of Five Different Bone Resorption Markers in Osteosarcoma-Bearing Dogs, Normal Dogs, and Dogs with Orthopedic Diseases by Lucas, P.W, Fan, T.M, Garrett, L.D, Griffon, D.J, Wypij, J.M

“…Background: Various bone resorption markers in humans are useful for supporting the diagnosis of malignant skeletal pathology, with certain bone resorption…”
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Mechanical Defenses in Leaves Eaten by Costa Rican Howling Monkeys (Alouatta palliata) by Teaford, M.F., Lucas, P.W., Ungar, P.S., Glander, K.E.

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Field kit to characterize physical, chemical and spatial aspects of potential primate foods by Lucas, P W, Beta, T, Darvell, B W, Dominy, N J, Essackjee, H C, Lee, P K, Osorio, D, Ramsden, L, Yamashita, N, Yuen, T D

“…An outline is given for a field kit aiming to substantially increase the in situ knowledge gleaned from feeding studies of primates. Measurements are made of…”
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Mechanical properties of foods responsible for resisting food breakdown in the human mouth by Agrawal, K.R., Lucas, P.W., Prinz, J.F., Bruce, I.C.

“…The fragmentation of foods (breakage function) was measured in five humans on ‘bagged’ single particles of 28 foods from three food groups. The change in the…”
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The effects of food fragmentation index on mandibular closing angle in human mastication by Agrawal, K.R, Lucas, P.W, Bruce, I.C

“…Jaw movements were recorded using a three-dimensional magnetic sensing system (Sirognathograph, Siemens) in 10 human volunteers while chewing standardized…”
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Colour cues for leaf food selection by long-tailed macaques (Macaca fascicularis) with a new suggestion for the evolution of trichromatic colour vision by Lucas, P W, Darvell, B W, Lee, P K, Yuen, T D, Choong, M F

“…Leaf colour, size and toughness were investigated in five plant species important in the diet of Macaca fascicularis in Singapore. Leaf colour and size were…”
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Understanding sub-stellar populations using wide-field infrared surveys by Pinfield, D.J., Day-Jones, A.C., Burningham, B., Leggett, S.K., Beaumont, H., Tamura, M., Tinney, C.G., Liu, M.C., Homeier, D., Lodieu, N., Deacon, N.R., West, A.A., Huelamo, N., Dupuy, T., Mortlock, D.J., Warren, S.J., Jones, H.R.A., Lucas, P.W., Ishi, M., McMahon, R.G., Hewett, P.C., Zapatero-Osorio, M.R., Martin, E.L., Venemans, B.P., Barrado, D., Zhang, Z., Morales-Calderon, M.

“…This paper discusses benchmark brown dwarfs in various environments, and focuses on those in wide binary systems. We present a summary of the recently…”
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The toughness of secondary cell wall and woody tissue by Lucas, P.W., Tan, H. T. W., Cheng, P. Y.

“…tests on woods and is related to the propensity for crack deflection. The slope of the relationship between section thickness and toughness, describing the…”
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Infrared spectroscopy of substellar objects in Orion by Lucas, P. W., Roche, P. F., Allard, France, Hauschildt, P. H.

“…We present broad-band spectra of a sample of 21 low-luminosity sources in the Trapezium cluster, with masses in the range 0.008–0.10 M⊙ (assuming an age of 1…”
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Indentation as a potential mechanical test for textural noodle quality by Wu, K., Lucas, P.W., Gunaratne, A., Collado, L.S., Corke, H., Almusallam, A.S., Thai, L.A.

“…Little research has still been published on gel elasticity. To this end, noodle sheets were indented with spherical probes of differing tip radii. Loads were…”
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Effects of reactive hydrocarbons and hydrogen peroxide on antioxidant activity in cherry leaves by Terry, G.M., Stokes, N.J., Lucas, P.W., Hewitt, C.N.

“…One-year-old cherry trees were fumigated with propene and gas-phase hydrogen peroxide, singly and in combination, in controlled-environment chambers for an…”
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Food physics and oral physiology by LUCAS, P. W, PRINZ, J. F, AGRAWAL, K. R, BRUCE, I. C

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Relationship between jaw movement and food breakdown in human mastication by Lucas, P W, Ow, R K, Ritchie, G M, Chew, C L, Keng, S B

“…Different quantities and sizes of peanuts were offered to six human subjects for mastication at two or three experimental sessions during which jaw movements…”
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Mechanical Defenses in Leaves Eaten by Costa Rican Howling Monkeys (Alouatta palliata) by Teaford, M.F., Lucas, P.W., Ungar, P.S., Glander, K.E.

“…Primate species often eat foods of different physical properties. This may have implications for tooth structure and wear in those species. The purpose of this…”
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Association between surface electromyography of human jaw-closing muscle and quantified food breakdown by Diaz-Tay, J, Jayasinghe, N, Lucas, P W, McCallum, J C, Jones, J T

“…Simultaneous recordings of the activity of the masseter and anterior temporalis and of jaw movement were made on 10 healthy dentate volunteers while they…”
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Optimum mouthful for food comminution in human mastication by Lucas, P W, Luke, D A

“…The effect of varying the portion of food offered for chewing (termed the mouthful) on aspects of the oral comminution of salted peanuts was investigated on…”
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