A variety of ways in which parasites might affect their hosts, ranging from the impact of disease... more A variety of ways in which parasites might affect their hosts, ranging from the impact of disease on host social behaviour to altered taxes, are considered. An attempt is made to assist non-specialists with 2 appendices linking nomenclature with taxonomic affinity, life cycle information and ...
Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, 2006
Transducers incorporating single crystal piezoelectric Pb(Mg1/3Nb2/3)x-1TixO3 (PMN-PT) exhibit si... more Transducers incorporating single crystal piezoelectric Pb(Mg1/3Nb2/3)x-1TixO3 (PMN-PT) exhibit significant advantages over ceramic piezoelectrics such as PZT, including both high electromechanical coupling (k33 > 90%) and piezoelectric coefficients (d33 > 2000 pC/N). Conventional orientation gives inherently larger bandwidth and output power than PZT ceramics, however, the anisotropy of the crystal also allows for tailoring of the performance by orienting the crystal
National Srandards Institute (ANSI). [t is a US Ac-credited Organization (AO) form of a standards... more National Srandards Institute (ANSI). [t is a US Ac-credited Organization (AO) form of a standards-devel-oping organization. When the IEEE is referred to vis-a-vis standardization, it should be called the AO IEEE, in contrast to an Accredited Standards Committee (ASC). ...
2011 International Semiconductor Device Research Symposium (ISDRS), 2011
ABSTRACT Impedance spectroscopy has been extensively applied for the diagnosis and evaluation of ... more ABSTRACT Impedance spectroscopy has been extensively applied for the diagnosis and evaluation of various types of solar cells. The method applies a sinusoidal electrical stimulus and subsequently measures the impedance (conductance and capacitance) across the terminals of the device for a range of different frequencies and/or temperatures. Based on this measurement, it is possible to extract the energy resolved trap distribution using analytical formulas that make use of the derivative of capacitance vs frequency (Walter et al. [1]), or the derivative of capacitance vs temperature (Li and Levi [2]). Assuming Arrhenius trap activation, the two approaches become dual to each other [2]. It is unclear, however, how the extracted trap densities compare to the actual trap densities. It is also not clear how different bias conditions, trap distributions, temperatures, and device dimensions affect the measurements. In this paper, we use “exact” numerical simulations to benchmark two impedance spectroscopy methodologies against each other, and against actual trap densities input to the simulations. The results help clarify the limitations of existing impedance spectroscopy analysis methodologies.
Reproduced from Soil Science Society of America Journal. Published by Soil Science Society of Ame... more Reproduced from Soil Science Society of America Journal. Published by Soil Science Society of America. All copyrights reserved. ... Fate of Applied Sulfate in Volcanic Ash-Influenced Forest Soils ... Mark Kimsey, Jr.,* Paul McDaniel, Dan Strawn, and Jim Moore
Proceedings of the National Academy of Sciences, 2007
It has been hypothesized that plant underground storage organs (USOs) played key roles in the ini... more It has been hypothesized that plant underground storage organs (USOs) played key roles in the initial hominin colonization of savanna habitats, the development of the distinctive skull and tooth morphology of the genus Australopithecus, and the evolution of the genus Homo by serving as ''fallback foods'' exploited during periods of food shortage. These hypotheses have been tested mostly by morphological, isotopic, and microwear analyses of hominin bones and teeth. Archaeological evidence of USO digging technology is equivocal. Until now relevant data from studies of chimpanzees, useful in behavioral models of early hominins because of their phylogenetic proximity and anatomical similarities, have been lacking. Here we report on the first evidence of chimpanzees using tools to dig for USOs, suggesting that exploitation of such resources was within the cognitive and technological reach of the earliest hominins. Consistent with scenarios of hominin adaptation to savannas, these data come from Ugalla (Tanzania), one of the driest, most open and seasonal chimpanzee habitats. USOs are, however, exploited during the rainy season, well after the period of most likely food shortage, contradicting the specific prediction of fallback food hypotheses. The discovery that savanna chimpanzees use tools to obtain USOs contradicts yet another claim of human uniqueness and provides a model for the study of variables influencing USO use among early hominins.
A variety of ways in which parasites might affect their hosts, ranging from the impact of disease... more A variety of ways in which parasites might affect their hosts, ranging from the impact of disease on host social behaviour to altered taxes, are considered. An attempt is made to assist non-specialists with 2 appendices linking nomenclature with taxonomic affinity, life cycle information and ...
Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, 2006
Transducers incorporating single crystal piezoelectric Pb(Mg1/3Nb2/3)x-1TixO3 (PMN-PT) exhibit si... more Transducers incorporating single crystal piezoelectric Pb(Mg1/3Nb2/3)x-1TixO3 (PMN-PT) exhibit significant advantages over ceramic piezoelectrics such as PZT, including both high electromechanical coupling (k33 > 90%) and piezoelectric coefficients (d33 > 2000 pC/N). Conventional orientation gives inherently larger bandwidth and output power than PZT ceramics, however, the anisotropy of the crystal also allows for tailoring of the performance by orienting the crystal
National Srandards Institute (ANSI). [t is a US Ac-credited Organization (AO) form of a standards... more National Srandards Institute (ANSI). [t is a US Ac-credited Organization (AO) form of a standards-devel-oping organization. When the IEEE is referred to vis-a-vis standardization, it should be called the AO IEEE, in contrast to an Accredited Standards Committee (ASC). ...
2011 International Semiconductor Device Research Symposium (ISDRS), 2011
ABSTRACT Impedance spectroscopy has been extensively applied for the diagnosis and evaluation of ... more ABSTRACT Impedance spectroscopy has been extensively applied for the diagnosis and evaluation of various types of solar cells. The method applies a sinusoidal electrical stimulus and subsequently measures the impedance (conductance and capacitance) across the terminals of the device for a range of different frequencies and/or temperatures. Based on this measurement, it is possible to extract the energy resolved trap distribution using analytical formulas that make use of the derivative of capacitance vs frequency (Walter et al. [1]), or the derivative of capacitance vs temperature (Li and Levi [2]). Assuming Arrhenius trap activation, the two approaches become dual to each other [2]. It is unclear, however, how the extracted trap densities compare to the actual trap densities. It is also not clear how different bias conditions, trap distributions, temperatures, and device dimensions affect the measurements. In this paper, we use “exact” numerical simulations to benchmark two impedance spectroscopy methodologies against each other, and against actual trap densities input to the simulations. The results help clarify the limitations of existing impedance spectroscopy analysis methodologies.
Reproduced from Soil Science Society of America Journal. Published by Soil Science Society of Ame... more Reproduced from Soil Science Society of America Journal. Published by Soil Science Society of America. All copyrights reserved. ... Fate of Applied Sulfate in Volcanic Ash-Influenced Forest Soils ... Mark Kimsey, Jr.,* Paul McDaniel, Dan Strawn, and Jim Moore
Proceedings of the National Academy of Sciences, 2007
It has been hypothesized that plant underground storage organs (USOs) played key roles in the ini... more It has been hypothesized that plant underground storage organs (USOs) played key roles in the initial hominin colonization of savanna habitats, the development of the distinctive skull and tooth morphology of the genus Australopithecus, and the evolution of the genus Homo by serving as ''fallback foods'' exploited during periods of food shortage. These hypotheses have been tested mostly by morphological, isotopic, and microwear analyses of hominin bones and teeth. Archaeological evidence of USO digging technology is equivocal. Until now relevant data from studies of chimpanzees, useful in behavioral models of early hominins because of their phylogenetic proximity and anatomical similarities, have been lacking. Here we report on the first evidence of chimpanzees using tools to dig for USOs, suggesting that exploitation of such resources was within the cognitive and technological reach of the earliest hominins. Consistent with scenarios of hominin adaptation to savannas, these data come from Ugalla (Tanzania), one of the driest, most open and seasonal chimpanzee habitats. USOs are, however, exploited during the rainy season, well after the period of most likely food shortage, contradicting the specific prediction of fallback food hypotheses. The discovery that savanna chimpanzees use tools to obtain USOs contradicts yet another claim of human uniqueness and provides a model for the study of variables influencing USO use among early hominins.
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Papers by Jim Moore