The pitch-heave dynamics of transportation vehicles

The analysis and design of suspensions for vehicles of finite length using pitch-heave models is presented. Dynamic models for the finite length vehicle include the spatial distribution of the guideway input disturbance over the vehicle length, as well as both pitch and heave degrees-of-freedom. Analytical results relate the vehicle front and rear accelerations to the pitch and heave natural frequencies, which are functions of vehicle suspension geometry and mass distribution. The effects of vehicle asymmetry and suspension contact area are evaluated. Design guidelines are presented for the modification of vehicle and suspension parameters to meet alternative ride quality criteria

The Coverings of an Empire: An Examination of Ottoman Headgear from 1500 to 1829

This paper investigates the socio-economic and religious implications of hats worn in the Ottoman Empire from the mid-sixteenth century to 1829, when they were all replaced with the legendary fez. It acts as an initial compendium, drawing heavily from primary sources to explain who wore which style of headgear and why

Camels In North America: The Effects of Islam & Globalism on U.S. State Law

A paper detailing the introduction of camels to the U.S in the 1850s as part of an army experiment and their effect of Nevada\u27s state laws

Building Cross Cultural Competencies.

The Building Cross Cultural Competencies project was developed with the aim of equipping undergraduate students at the University of York with skills to work in the globalised world, while at the same time assisting with the induction and orientation of international students, new to the institution and to study in the UK. The inspiration for the programme dates back to 2006, when one of the authors visited three Universities in New Zealand and Australia. These Universities were perceived to be further down the route to internationalisation (as defined by Knight 2003) than was the norm in the UK at the time. Innovations observed at Massey and Waikato Universities in New Zealand and the University of Sydney, Australia, were redesigned and redeveloped for use at the University of York, with the agreement of the staff involved at those institutions. In particular, a cross cultural communication module and two distinctive peer mentor schemes provided the nucleus of the idea for a new initiative at York that would span the employability and internationalisation agendas This paper identifies how the project redesigned and developed ideas taken from Australian and New Zealand Universities for use in a UK context. It makes links to the literature on student adjustment and institutional adaptation; peer teaching and cross cultural communication skills. It will also consider the problems and difficulties experienced as the project progressed

The Photometry of Undersampled Point Spread Functions

An undersampled point spread function may interact with the microstructure of a solid-state detector such that the total flux detected can depend sensitively on where the PSF center falls within a pixel. Such intra-pixel sensitivity variations will not be corrected by flat field calibration and may limit the accuracy of stellar photometry conducted with undersampled images, as are typical for Hubble Space Telescope observations. The total flux in a stellar image can vary by up to 0.03 mag in F555W WFC images depending on how it is sampled, for example. For NIC3, these variations are especially strong, up to 0.39 mag, strongly limiting its use for stellar photometry. Intra-pixel sensitivity variations can be corrected for, however, by constructing a well-sampled PSF from a dithered data set. The reconstructed PSF is the convolution of the optical PSF with the pixel response. It can be evaluated at any desired fractional pixel location to generate a table of photometric corrections as a function of relative PSF centroid. A caveat is that the centroid of an undersampled PSF can also be affected by the pixel response function, thus sophisticated centroiding methods, such as cross-correlating the observed PSF with its fully-sampled counterpart, are required to derive the proper photometric correction.Comment: 20 pages, 14 postscript figures, submitted to the PAS

The Focal Account: Indirect Lie Detection Need Not Access Unconscious, Implicit Knowledge

People are poor lie detectors, but accuracy can be improved by making the judgment indirectly. In a typical demonstration, participants are not told that the experiment is about deception at all. Instead, they judge whether the speaker appears, say, tense or not. Surprisingly, these indirect judgments better reflect the speaker’s veracity. A common explanation is that participants have an implicit awareness of deceptive behavior, even when they cannot explicitly identify it. We propose an alternative explanation. Attending to a range of behaviors, as explicit raters do, can lead to conflict: A speaker may be thinking hard (indicating deception) but not tense (indicating honesty). In 2 experiments, we show that the judgment (and in turn the correct classification rate) is the result of attending to a single behavior, as indirect raters are instructed to do. Indirect lie detection does not access implicit knowledge, but simply focuses the perceiver on more useful cues

Are you hiding something from me? Uncertainty and judgments about the intentions of others

We are skilled at reading other’s intentions – until they try to hide them. We are biased towards taking at face value what others say, but it is not clear why. One possibility is that we are uncertain, and make the decision by relying on heuristics. Half of our participants judged whether speakers were lying or telling the truth. The other half did not have to commit to a judgment: they were allowed to say they were unsure. We expected these participants would no longer need to rely on simplified heuristics and so show a reduced bias compared to the forced choice condition. Surprisingly, those who could say they were unsure were more biased towards believing people. We consider two possible accounts, both highlighting the importance of examining raters’ uncertainty, which have so far been undocumented. Allowing raters to abstain from judgment gives new insights into the judgment-forming process

Fetal heterotaxy with tricuspid atresia, pulmonary atresia, and isomerism of the right atrial appendages at 22 weeks.

We report the accurate prenatal diagnosis at 22 weeks gestation of right atrial isomerism in association with tricuspid atresia. Several distinctive sonographic features of isomerism of the right atrial appendages were present in this fetus: complex cardiac abnormality, ventriculoarterial discordance, juxtaposition of the aorta and the inferior vena cava to the right side, pulmonary atresia, and anomalous pulmonary venous return to the morphological right atrium. Tricuspid atresia, which is an extremely rare lesion within heterotaxy spectrum disorders, was present. Postnatal investigations confirmed all prenatally diagnosed abnormalities, with additional findings of pulmonary atresia with discontinuous pulmonary arteries and bilateral arterial ducts, asplenia, and bilateral eparterial bronchi. To our knowledge, tricuspid atresia in the setting of isomerism of the right atrial appendages has not previously been diagnosed or reported prenatally. Because of the complexity of cardiac lesions that may be present in cases of atrial isomerism, these disorders should be considered even if sonographic findings are uncommon or atypical