Adjustable mount for a trihedral mirror Patent

Adjustable rigid mount for trihedral mirror formed of alloy with small coefficient of thermal expansion supporting screws and spring-biased plate

The Food of the barn owl in the Serengeti National Park, Tanzania

Volume: 2

New Zealand and the military occupation of Japan 1945-48 : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Arts in History at Massey University

The impetus for an MA thesis on 'New Zealand and the Military Occupation of Japan 1945-48' came from discussions with individuals at Massey University, Internal Affairs Historical Branch, and the New Zealand J Force and BCOF Veterans Association. It became clear that this episode in New Zealand history had not previously been studied in depth, yet opportunities were diminishing for with the passing of time veterans' written and oral recollections and personnel papers were being lost. An ideal and somewhat urgent avenue for original historical research emerged. New Zealand's role in the military occupation of Japan had two inter-connecting sides, political and military. This thesis will examine both, and the relationship between the political and military parts, as well as the overall relevance of this slice of New Zealand history. A central question is 'was participation in the occupation of Japan important as a political or military event, or both'

An in-flight interaction of the X-29A canard and flight control system

Many of today's high performance airplanes use high gain, digital flight control systems. These sytems are liable to couple with the aircraft's structural dynamics and aerodynamics to cause an aeroservoelastic interaction. These interactions can be stable or unstable depending upon damping and phase relationships within the system. The details of an aeroservoelastic interaction experienced in flight by the X-29A forward-swept wing airplane. A 26.5-Hz canard pitch mode response was aliased by the digital sampling rate in the canard position feedback loop of the flight control system, resulting in a 13.5-Hz signal being commanded to the longitudinal control surfaces. The amplitude of this commanded signal increased as the wear of the canard seals increased, as the feedback path gains were increased, and as the canard aerodynamic loading decreased. The resultant control surface deflections were of sufficient amplitude to excite the structure. The flight data presented shows the effect of each component (structural dynamics, aerodynamics, and flight control system) for this aeroservoelastic interaction

Coarse-grained pressure dynamics in superfluid turbulence

Quantum mechanics places significant restrictions on the hydrodynamics of superfluid flows. Despite this it has been observed that turbulence in superfluids can, in a statistical sense, share many of the properties of its classical brethren; coherent bundles of superfluid vortices are often invoked as an important feature leading to this quasiclassical behavior. A recent experimental study [E. Rusaouen, B. Rousset, and P.-E. Roche, Europhys. Lett. 118, 14005, (2017)10.1209/0295-5075/118/14005] inferred the presence of these bundles through intermittency in the pressure field; however, direct visualization of the quantized vortices to corroborate this finding was not possible. In this work, we performed detailed numerical simulations of superfluid turbulence at the level of individual quantized vortices through the vortex filament model. Through course graining of the turbulent fields, we find compelling evidence supporting these conclusions at low temperature. Moreover, elementary simulations of an isolated bundle show that the number of vortices inside a bundle can be directly inferred from the magnitude of the pressure dip, with good theoretical agreement derived from the Hall-Vinen-Bekarevich-Khalatnikov (HVBK) equations. Full simulations of superfluid turbulence show strong spatial correlations between course-grained vorticity and low-pressure regions, with intermittent vortex bundles appearing as deviations from the underlying Maxwellian (vorticity) and Gaussian (pressure) distributions. Finally, simulations of a decaying random tangle in an ultraquantum regime show a unique fingerprint in the evolution of the pressure distribution, which we argue can be fully understood using the HVBK framework

TikTok and Civic Activity among Young Adults

TikTok is known for its lighthearted dance and lip-synch videos, yet videos with the hashtag #politics have garnered nearly 14 billion views. Does young adults’ politically oriented expression on TikTok lead to increased civic engagement offline? TikTok helps incorporate young adults into political social networks that may encourage additional civic activity. In addition, the playful, humorous nature of TikTok-based political expression encourages young adults to develop participatory, political selves. Using data from a 2020 survey of Americans between 18 and 25 years old, we find that posting political videos on TikTok connects with higher offline civic engagement. The results suggest that playful political expression is an important feature for promoting young adult civic engagement

Intravital Multiphoton Microscopy with Fluorescent Bile Salts in Rats as an In Vivo Biomarker for Hepatobiliary Transport Inhibition

The bile salt export pump (BSEP) is expressed at the canalicular domain of hepatocytes, where it mediates the elimination of monovalent bile salts into the bile. Inhibition of BSEP is considered a susceptibility factor for drug-induced liver injury that often goes undetected during nonclinical testing. Although in vitro assays exist for screening BSEP inhibition, a reliable and specific method for confirming Bsep inhibition in vivo would be a valuable follow up to a BSEP screening strategy, helping to put a translatable context around in vitro inhibition data, incorporating processes such as metabolism, protein binding, and other exposure properties that are lacking in most in vitro BSEP models. Here, we describe studies in which methods of quantitative intravital microscopy were used to identify dose-dependent effects of two known BSEP/Bsep inhibitors, 2-[4-[4-(butylcarbamoyl)-2-[(2,4-dichlorophenyl)sulfonylamino]phenoxy]-3-methoxyphenyl]acetic acid (AMG-009) and bosentan, on hepatocellular transport of the fluorescent bile salts cholylglycyl amidofluorescein and cholyl-lysyl-fluorescein in rats. Results of these studies demonstrate that the intravital microscopy approach is capable of detecting Bsep inhibition at drug doses well below those found to increase serum bile acid levels, and also indicate that basolateral efflux transporters play a significant role in preventing cytosolic accumulation of bile acids under conditions of Bsep inhibition in rats. Studies of this kind can both improve our understanding of exposures needed to inhibit Bsep in vivo and provide unique insights into drug effects in ways that can improve our ability interpret animal studies for the prediction of human drug hepatotoxicity

A Practical Method for Collecting Social Media Campaign Metrics

Today\u27s Extension professionals are tasked with more work and fewer resources. Integrating social media campaigns into outreach efforts can be an efficient way to meet work demands. If resources go toward social media, a practical method for collecting metrics is needed. Collecting metrics adds one more task to the workloads of Extension professionals and their partners. Can metrics be collected in an efficient and effective long-term manner even when partners are involved? We propose a practical method for collecting social media communication campaign metrics that is easy to implement and allows for measuring engagement of users over time

College Students and Online Political Expression During the 2016 Election

While college students traditionally exhibit low levels of political participation and interest in politics, they are more likely to engage in some forms of political expression than their elders. Their greater familiarity with online forms of political expression and engagement potentially lowers their barriers for political involvement. In turn, this potentially draws more young adults into the political process. We compare the precursors of expressive forms of online political engagement to those of talking to someone offline and trying to persuade them to vote for or against a candidate or party among college students. We find that both activities are positively connected with politically-oriented activity on social media, as well as, the frequency with which one reads blogs. We also discover that the mechanisms that explain online political expression are both similar to and different from those that explain offline attempts at persuasion in several key ways

Daddy, Read to Me : Fathers Helping Their Young Children Learn to Read

Parents\u27 involvement in their young children\u27s early reading development is reported to be an important prerequisite to school success. Much of the research on parents\u27 contribution to early literacy development has focused on mother-child interaction. Less is known about the role of fathers. Fathers, however, report that they want to be involved with their children\u27s literacy development when given opportunities to do things they feel are interesting and capable of doing. Studies indicate that fathers\u27 involvement with early literacy activities range from reading recreation-related materials to assisting their children with school assignments. This paper provides background information concerning research into fathers\u27 involvement in early literacy development and offers various suggestions on encouraging fathers to become involved with their children\u27s early literacy activities