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966 results on '"Mills, Kenneth"'

304. Single shear testing of various cable bolts used in Australian mines

Author

Aziz, Naj, Rink, Owen, Rasekh, Haleh, Hawkins, Ellie, Mirzaghorbanali, Ali, Yang, Guanyu, Khaleghparast, Saman, Mills, Kenneth, Nemcik, Jan, Li, Xuwei, Aziz, Naj, Rink, Owen, Rasekh, Haleh, Hawkins, Ellie, Mirzaghorbanali, Ali, Yang, Guanyu, Khaleghparast, Saman, Mills, Kenneth, Nemcik, Jan, and Li, Xuwei

Abstract

Sixteen single shear tests were carried out on eight geometric cable variations provided for testing from Australian suppliers – Jennmar, Megabolt and Minova. Each test was subjected to varying pre-tension values of zero and 15 tonnes, exploring the effect of plain, spiral, bulbed, indented and a combination of plain and indented wire strands. The results obtained demonstrated that the shear strength of plain strand cable was higher than the spiral and/or indented profiled cables with direct correlation to the strands ultimate tensile strength. All the plain profiled cables experienced an element of partial debonding suggesting that their application at embedment length less than 1.8 m each anchor side may not be adequate. The spiral and indented profile strands provided greater bond strength at the cable-grout interface due to the surface roughness of the wires imposing an interlocking effect, leading to reduced shear displacement. The data suggests that the spiral profile was superior to the indented profile due possibly to the compromised integrity of the strand from the impact of stress raisers when creating the indented profile. No study was carried on the button indented profile cable bolts. This report is the first validation that type of apparatus selected to test the shearing capacity of a cable strand will not affect results.

Published
2017

308. Data pooling in a chemical kinetics experiment: the aquation of a series of cobalt(III) complexes

Author

Herrick, Richard S., Mills, Kenneth V., and Nestor, Lisa P.

Subjects
Chemical reaction, Rate of -- Study and teaching, Cobalt alloys -- Chemical properties, Cobalt alloys -- Atomic properties, Science experiments, Chemistry, Education, Science and technology
Abstract

The four-course introductory chemistry sequence called discovery chemistry which introduces students to the concept of chemical kinetics by incorporating data pooling is described. The easy to set up experiment introduces students to the use of integrated rate laws in chemical kinetics and explores many important concepts in chemical kinetics.

Published
2008

309. Introducing undergraduate students to electrochemistry: a two-week discovery chemistry experiment

Author

Mills, Kenneth V., Herrick, Richard S., Guilmette, Louise W., Nestor, Lisa P., Shafer, Heather, and Ditzler, Mauri A.

Subjects
College students -- Education, Electrochemistry -- Study and teaching, Science experiments, Chemistry, Education, Science and technology
Abstract

A two-week laboratory exercise designed and implemented to introduce students to discovery chemistry, an approach based on guided-inquiry to teach chemical concept is described. The students learn to use data on the basis of discussion conducted in lecture and expand their knowledge on scientific method.

Published
2008

310. Direct estimation of early survival and movements in eastern wolf pups

Author

Mills, Kenneth J., Patterson, Brent R., and Murray, Dennis L.

Subjects
Wolves -- Behavior, Wilderness survival -- Research, Animals -- Dispersal, Animals -- Research, Birds -- Nestlings, Birds -- Behavior, Zoology and wildlife conservation
Abstract

Very high frequency transmitters are employed to measure the survival and dispersal rates and the movements observed in the eastern wolf pups. The pack or litter sizes are shown to have no effect on the survival or probability of dispersal of the pups.

Published
2008

311. Thermochemical analysis of neutralization reactions: An introductory discovery experiment

Author

Mills, Kenneth V. and Gullmette, Louise W.

Subjects
Citric acid -- Chemical properties, Neutralization (Chemistry) -- Analysis, Thermodynamics -- Analysis, Thermodynamics -- Study and teaching, Science experiments, Chemistry, Education, Science and technology
Abstract

The article describes a new discovery experiment that uses thermodynamical analysis to study neutralization reactions based on neutralization of citric acid. The experiment would be able to reinforce students' understanding of stoichiometry and allow for the discovery of basic concepts of thermochemistry.

Published
2007

322. Protein Splicing Activity of the Haloferax volcaniiPolB-c Intein Is Sensitive to Homing Endonuclease Domain Mutations

Author

Robinzon, Shachar, Cawood, Alexandra R., Ruiz, Mercedes A., Gophna, Uri, Altman-Price, Neta, and Mills, Kenneth V.

Abstract

Inteins are selfish genetic elements residing in open reading frames that can splice post-translationally, resulting in the ligation of an uninterrupted, functional protein. Like other inteins, the DNA polymerase B (PolB) intein of the halophilic archaeon Haloferax volcaniihas an active homing endonuclease (HEN) domain, facilitating its horizontal transmission. Previous work has shown that the presence of the PolB intein exerts a significant fitness cost on the organism compared to an intein-free isogenic H. volcanii. Here, we show that mutation of a conserved residue in the HEN domain not only reduces intein homing but also slows growth. Surprisingly, although this mutation is far from the protein splicing active site, it also significantly reduces in vitroprotein splicing. Moreover, two additional HEN domain mutations, which could not be introduced to H. volcanii, presumably due to lethality, also eliminate protein splicing activity in vitro. These results suggest an interplay between HEN residues and the protein splicing domain, despite an over 35 Å separation in a PolB intein homology model. The combination of in vivoand in vitroevidence strongly supports a model of codependence between the self-splicing domain and the HEN domain that has been alluded to by previous in vitrostudies of protein splicing with HEN domain-containing inteins.

Published
2020
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325. Does Predation Influence the Seasonal and Diel Timing of Moose Calving in Central Ontario, Canada?

Author

Patterson, Brent R., Mills, Kenneth J., Middel, Kevin R., Benson, John F., Obbard, Martyn E., Patterson, Brent R., Mills, Kenneth J., Middel, Kevin R., Benson, John F., and Obbard, Martyn E.

Abstract

Birth synchrony is well documented among ungulates and is hypothesised to maximize neonate survival, either by minimizing the risk of predation through predator swamping or by synchronising birthing with increased seasonal food availability. We used encapsulated vaginal implant transmitters to locate and capture neonatal moose calves and document the seasonal and diel timing of parturition in two adjacent study areas with different predation pressure in central Ontario, Canada. We tested the hypothesis that predation promotes earlier and more synchronous birth of moose calves. Across both areas, proportionately more births occurred during the afternoon and fewer than expected occurred overnight. Mean date of calving averaged 1.5 days earlier and calving was also more synchronous in the study area with heavier predation pressure, despite average green-up date and peak Normalized Difference Vegetation Index date occurring 2 days later in this study area than in the area receiving lighter predation pressure. We encourage analysis of data on timing of parturition from additional study areas experiencing varying degrees of predation pressure to better clarify the influence of predation in driving seasonal and diel timing of parturition in temperate ungulates

Published
2016

326. The Influence of Stimulants, Sedatives, and Fatigue on Tunnel Vision: Risk Factors for Driving and Piloting

Author

Mills, Kenneth C., Spruill, Susan E., Kanne, Roy W., Parkman, Katherine M., and Zhang, Ying

Subjects
Fatigue -- Physiological aspects, Attention -- Testing -- Physiological aspects, Hypnotics -- Physiological aspects, Stimulants -- Physiological aspects, Sedatives -- Physiological aspects, Visual perception -- Testing -- Physiological aspects
Abstract

A computerized task was used in two studies to examine the influence of stimulants, sedatives, and fatigue on single-target and divided-attention responses in different parts of the visual field. The […]

Published
2001

327. Pathways of Memory and Power: Ethnography and History Among an Andean People

Author

Mills, Kenneth

Subjects
Pathways of Memory and Power: Ethnography and History Among an Andean People (Book), Books -- Book reviews, History
Abstract

Pathways of Memory and Power: Ethnography and History Among an Andean People. By Thomas A. Abercrombie. (Madison: University of Wisconsin Press, 1998. Pp. xxviii, 603. $27.00.) This is a vast, [...]

Published
2000

329. Conversion in Late Antiquity and the Early Middle Ages: Seeing and Believing

Author

Mills, Kenneth, and Anthony Grafton, eds., Mills, Kenneth, and Anthony Grafton, eds., Mills, Kenneth, and Anthony Grafton, eds., and Mills, Kenneth, and Anthony Grafton, eds.

Abstract

The Medieval Review, (dlps) baj9928.0502.002, (tmr) 05.02.02, http://quod.lib.umich.edu/t/text/accesspolicy.html

Published
2003

344. Frakturen und Luxationen

Author

Mills, Kenneth, Morton, Richard, Page, Graham, Bier, Bert, Mills, Kenneth, Morton, Richard, Page, Graham, and Bier, Bert, editor

Published
1987
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345. WHAT YOU'RE SAYING.

Author

Barletto, Phil, Wrench, Edward, Jones, Drew, Byers, Lucy, Holroyd, Bryony, Mills, Kenneth, Howell, Josh, and Brabbins, Bob

Published
2023

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