A Qualitative Exploration into Larry Wilson\u27s Transformational Leadership

Larry Wilson was considered by many to be a transformational leader. This paper explores the intersection of how people associated with Larry experienced him relative to the current research on transformational leadership through an interpretive method of gathering data from former employees, customers, and family. Data was gathered through a series of personal interviews, published text, and a questionnaire. The interviews and questionnaire yielded five main themes. The evidence suggests Larry’s style of leadership is consistent with the Full Range of Transformational Leadership, as posited by Bernard Bass and Bruce Avolio (1994)

Misregistration in Adaptive Optics Systems

An adaptive optics (AO) system is most effective when there is a known alignment between the wave front sensor (WFS) and the deformable mirror (DM). Misregistration is the term for the unknown alignment between the WFS and DM. Misregistration degrades system performance and can make the system unstable. An AO system uses a reconstruction matrix to transform WFS measurements into DM commands. A standard AO system uses a model reconstruction matrix that assumes perfect registration between the WFS and DM. The object of this research is to mitigate the negative effects of misregistration by using offline WFS measurements to create the reconstruction matrix. To build the reconstruction matrix, each actuator on the DM is poked to a fixed amount, and then the resulting measurement on the WFS is recorded. Analytic studies of the model and measured matrices show that the measured matrix yields a more stable AO system. Additional simulations indicate that applying the measured matrix improves the overall system performance compared to that of the model reconstruction matrix

Deep flaws in weldments of aluminum and titanium

Surface flawed specimens of 2219-T87 and 6Al-4V STA titanium weldments were tested to determine static failure modes, failure strength, and fatigue flaw growth characteristics. Thicknesses selected for this study were purposely set at values where, for most test conditions, abrupt instability of the flaw at fracture would not be expected. Static tests for the aluminum weldments were performed at room, LN2 and LH2 temperatures. Titanium static tests for tests were performed at room and LH2 temperatures. Results of the static tests were used to plot curves relating initial flaw size to leakage- or failure-stresses (i.e. "failure" locus curves). Cyclic tests, for both materials, were then performed at room temperature, using initial flaws only slightly below the previously established failure locus for typical proof stress levels. Cyclic testing was performed on pairs of specimens, one with and one without a simulated proof test cycle. Comparisons were made then to determine the value and effect of proof testing as affected by the various variables of proof and operating stress, flaw shape, material thickness, and alloy

Examining Antibody to Sin Nombre Virus in Rodents Associated with Peridomestic Habitats in North East Montana

Hantaviruses are rodent-borne pathogens that produce chronic persistent infections in their reservoir hosts.  Sin Nombre virus (SNV) is a type of hantavirus carried by deer mice (Peromyscus maniculatus).  Infected deer mice shed virus in urine, saliva, or feces, and human contact with the virus can lead to a serious illness called hantavirus cardiopulmonary syndrome. Most studies examining SNV in the rodent host have been conducted in natural settings where human contact with the virus is unlikely.  This study, performed in a peridomestic setting (in and around buildings), where contact with the virus is more likely, adds data to a previous study in west central Montana.  Mice were live trapped for 3 consecutive nights every two weeks from May to August 2014, at 2 sites in NE Montana.  Captured individuals were ear tagged,and species, body mass, sex, reproductive condition, presence of scars or wounds, and location of capture were recorded into a field journal.  Blood samples were collected from the retro-orbital sinus of each captured animal.  These blood samples were frozen until they could be analyzed.  Blood samples were analyzed for antibodies (IgM) to SNV.  Deer mice were the most common species captured at both study sites and antibody positive deer mice were detected at both study sites.  Antibody prevalence was found to be variable both spatially and temporally with highest prevalence in the middle of the summer

Noise-free high-efficiency photon-number-resolving detectors

High-efficiency optical detectors that can determine the number of photons in a pulse of monochromatic light have applications in a variety of physics studies, including post-selection-based entanglement protocols for linear optics quantum computing and experiments that simultaneously close the detection and communication loopholes of Bell's inequalities. Here we report on our demonstration of fiber-coupled, noise-free, photon-number-resolving transition-edge sensors with 88% efficiency at 1550 nm. The efficiency of these sensors could be made even higher at any wavelength in the visible and near-infrared spectrum without resulting in a higher dark-count rate or degraded photon-number resolution.Comment: 4 pages, 4 figures Published in Physical Review A, Rapid Communications, 17 June 200

Crack Growth of D6 Steel in Air and High Pressure Oxygen

Fracture and subcritical flaw growth characteristics were experimentally determined for electroless nickel plated D6 steel in dry air and high pressure oxygen environments as applicable to the Lunar Module/Environmental Control System (LM/ECS) descent gaseous oxygen (GOX) tank. The material tested included forgings, plate, and actual LM/ECS descent GOX tank material. Parent metal and TIG (tungsten inert gas) welds were tested. Tests indicate that proof testing the tanks at 4000 pounds per square inch or higher will insure safe operation at 3060 pounds per square inch. Although significant flaw growth can occur during proofing, subsequent growth of flaws during normal tank operation is negligible

Morphological Variation, Karyology, and Systematic Relationships of \u3ci\u3eHeteromys gaumeri\u3c/i\u3e (Rodentia: Heteromyidae)

Morphological variation was assessed within and among populations of Heteromys gaumeri using univariate and multivariate statistical analyses of external and cranial measurements. Although patterns and amount of nongeographic variation in H. gaumeri were similar to other heteromyines, geographic variation was relatively conservative. Mean values of most characters were statistically homogeneous among localities and spatially unpatterned. Consequently, no association was found between levels of within- and among-sample variation for individual characters (the Kluge-Kerfoot phenomenon ). Populations of H. gaumeri were chromosomally monomorphic. The lack of morphological and chromosomal variation in H. gaumeri contrasts sharply with patterns in other heteromyines. Heteromys gaumeri is morphologically and chromosomally distinct from the H. desmarestianus species group (to which it is currently assigned) and appears to share some primitive characters with Liomys (the sister group of Heteromys). We recommend that H. gaumeri be removed from the H. desmarestianus group. Spanish abstract: La variación morfológica intra e interpoblacional de Heteromys gaumeri fue evaluada usando análisis estadísticos univariados y multivariados de medidas externas y craneales. A pesar de que los patrones y cantidad de variación intrapoblacional en H. gaumeri fue similar a la de otros heterominos, la variación geográfica fue relativamente conservadora. Los valores promedio de la mayoría de los caracteres fueron estadisticamente homogeneos entre las localidades, sin mostrar ningún patrón de variación espacial. En conservencia, no se encontró asociación alguna entre los niveles de variación intra e interpoblacional para caracteres individuates ( fenómena Kluge-Kerfoot ), Las poblaciones de H. gaumeri fueron monomórficas cromosómicamente. La falta de variacion tanto morfológica como cronosómica en H. gaumeri contrasta marcadamente con los patrones encontrados anteriormente para otros heteróminos. Heteromys gaumeri es morfológica y cromosómicamente distinguible del grupo H. desmarestianus (al cual se asigna actualmente) y aparentemente comparte algunos caracteres primitives con Liomys (el grupo hermano de Heteromys). Nosotros recomendamos que se remueva a H. gaumeri del grupo H. desmarestianus. Portuguese abstract: Avalia-se a variação morfológica intra- e interpopulacional de Heteromys gaumeri, através de análises estatisticas uni- e multivariadas de medidas externas e craniais. Apesar dos padrões, e da quantidade de variação intrapopulacional em H. gaumeri serem similares aos de outros heteromídeos, a variação geográfica é relativamente conservadora. Os valores médios da maior parte dos caráteres examinados são estatìsticamente homogeneos entre as localidades, e não surgiu nenhum padrão de variações locais. Consequentemente, não foram encontradas assoçiacões entre os níveis de varaiações intra- e interpopulacionais para caráteres individuais (o “fenômeno Kluge-Kerfoot”). Populações de H. gaumeri mostraram-se cromossômicamente monomórficas. A falta de variação morfológica ou cromossômica em H. gaumeri é altamente contrastante aos padrões encontrados em outros heteromídeos. Heteromys gaumeri distinguese tanto morfológica quanto cromossômicamente do grupo H. desmarestianus, ao qual está atualmente designado, e aparentemente possue caráteres primitivos em comum com Liomys—grupo irmão de Heteromys. Recomendamos que H. gaumeri seja removido do grupo H. desmarestianus

Morphological Variation, Karyology, and Systematic Relationships of \u3ci\u3eHeteromys gaumeri\u3c/i\u3e (Rodentia: Heteromyidae)

Morphological variation was assessed within and among populations of Heteromys gaumeri using univariate and multivariate statistical analyses of external and cranial measurements. Although patterns and amount of nongeographic variation in H. gaumeri were similar to other heteromyines, geographic variation was relatively conservative. Mean values of most characters were statistically homogeneous among localities and spatially unpatterned. Consequently, no association was found between levels of within- and among-sample variation for individual characters (the Kluge-Kerfoot phenomenon ). Populations of H. gaumeri were chromosomally monomorphic. The lack of morphological and chromosomal variation in H. gaumeri contrasts sharply with patterns in other heteromyines. Heteromys gaumeri is morphologically and chromosomally distinct from the H. desmarestianus species group (to which it is currently assigned) and appears to share some primitive characters with Liomys (the sister group of Heteromys). We recommend that H. gaumeri be removed from the H. desmarestianus group. Spanish abstract: La variación morfológica intra e interpoblacional de Heteromys gaumeri fue evaluada usando análisis estadísticos univariados y multivariados de medidas externas y craneales. A pesar de que los patrones y cantidad de variación intrapoblacional en H. gaumeri fue similar a la de otros heterominos, la variación geográfica fue relativamente conservadora. Los valores promedio de la mayoría de los caracteres fueron estadisticamente homogeneos entre las localidades, sin mostrar ningún patrón de variación espacial. En conservencia, no se encontró asociación alguna entre los niveles de variación intra e interpoblacional para caracteres individuates ( fenómena Kluge-Kerfoot ), Las poblaciones de H. gaumeri fueron monomórficas cromosómicamente. La falta de variacion tanto morfológica como cronosómica en H. gaumeri contrasta marcadamente con los patrones encontrados anteriormente para otros heteróminos. Heteromys gaumeri es morfológica y cromosómicamente distinguible del grupo H. desmarestianus (al cual se asigna actualmente) y aparentemente comparte algunos caracteres primitives con Liomys (el grupo hermano de Heteromys). Nosotros recomendamos que se remueva a H. gaumeri del grupo H. desmarestianus. Portuguese abstract: Avalia-se a variação morfológica intra- e interpopulacional de Heteromys gaumeri, através de análises estatisticas uni- e multivariadas de medidas externas e craniais. Apesar dos padrões, e da quantidade de variação intrapopulacional em H. gaumeri serem similares aos de outros heteromídeos, a variação geográfica é relativamente conservadora. Os valores médios da maior parte dos caráteres examinados são estatìsticamente homogeneos entre as localidades, e não surgiu nenhum padrão de variações locais. Consequentemente, não foram encontradas assoçiacões entre os níveis de varaiações intra- e interpopulacionais para caráteres individuais (o “fenômeno Kluge-Kerfoot”). Populações de H. gaumeri mostraram-se cromossômicamente monomórficas. A falta de variação morfológica ou cromossômica em H. gaumeri é altamente contrastante aos padrões encontrados em outros heteromídeos. Heteromys gaumeri distinguese tanto morfológica quanto cromossômicamente do grupo H. desmarestianus, ao qual está atualmente designado, e aparentemente possue caráteres primitivos em comum com Liomys—grupo irmão de Heteromys. Recomendamos que H. gaumeri seja removido do grupo H. desmarestianus

Natural History and Karyology of the Yucatán Vesper Mouse, \u3ci\u3eOtonyctomys hatti\u3c/i\u3e

Seventeen specimens of the rare Yucatán vesper mouse, Otonyctomys hatti, are now known from Belize, Guatemala, and the Mexican states of Campeche, Quintana Roo, and Yucatán. We herein report a second specimen of O. hatti, from Belize, extending the known geographic range of the species 95 km to the southeast in the country. This is the first location at which O. hatti has been taken sympatrically with the Central American vesper mouse, Nyctomys sumichrasti. We also report data on three additional specimens of O. hatti from Campeche. Nyctomys and Otonyctomys share similar habits and habitat requirements, and might compete where they overlap. However, the distribution of O. hatti corresponds closely to that of other Yucatán endemic, and the distinct distributions of the two genera probably reflects biogeographic history and different habitat requirements, rather than result from direct competition. The karyotype of O. hatti is 2n=50, F=58. Although superficially similar, it differs in important respects with the karyotypes reported for N. sumichrasti