A Study of Information & Knowledge Generated During Engineering Design Meetings

During the design process, there is a wealth of information generated, and although it may not be obvious at the time, this information can be extremely useful at a later instance when it may be no longer available. Many information capture solutions utilise tools such as video and media capture, incorporating the idea that if you capture all information then you will not miss anything. However, this creates another problem. Not all the information captured will be useful, therefore how can you distinguish the information that is useful from information that is not? The challenge many organisations face is how to capture and store valuable informal information in a way that is both simple and efficient, whilst remaining unobtrusive to the designers involved and without inhibiting the design activities. Through the undertaking of a series of case studies and test scenarios, it is possible to observe, identify and evaluate the various degrees of information and knowledge being generated and passed amongst design engineering teams whilst performing design activities in meeting situations. Using multi-media recording equipment and observation techniques, insight can be gained into the decision making process design engineering teams encounter during the course of a design project, and thus it is possible to evaluate where improved techniques can be applied to enhance the recording of information for re-use

Particle Astrophysics in Space with an Antimatter Large Acceptance Detector in Orbit (ALADINO)

The note describes a proposal for a large acceptance magnetic spectrometer based on a novel superconducting magnet technology, equipped with a silicon tracker and a 3D isotropic calorimeter. ALADINO (Antimatter Large Acceptance Detector IN Orbit) is conceived to study antimatter components of the cosmic radiation in an unexplored energy window which can shed light on new phenomena related to the origin and evolution of the Universe, as well as on the origin and propagation of cosmic rays in our galaxy. The main science themes addressed by this mission are therefore the origin and composition of the Universe (by means of direct search for primordial anti-nuclei in the Cosmic Ray (CR) flux and indirect search for Dark Matter signals in the CR anti-particle fluxes) as well as the origin and propagation of CR in the Galaxy (by means of precise measurements of the energy spectra and chemical composition of the CR)

Neutron structure function and inclusive DIS from H-3 and He-3 at large Bjorken-x

A detailed study of inclusive deep inelastic scattering (DIS) from mirror A = 3 nuclei at large values of the Bjorken variable x is presented. The main purpose is to estimate the theoretical uncertainties on the extraction of the neutron DIS structure function from such nuclear measurements. On one hand, within models in which no modification of the bound nucleon structure functions is taken into account, we have investigated the possible uncertainties arising from: i) charge symmetry breaking terms in the nucleon-nucleon interaction, ii) finite Q**2 effects neglected in the Bjorken limit, iii) the role of different prescriptions for the nucleon Spectral Function normalization providing baryon number conservation, and iv) the differences between the virtual nucleon and light cone formalisms. Although these effects have been not yet considered in existing analyses, our conclusion is that all these effects cancel at the level of ~ 1% for x < 0.75 in overall agreement with previous findings. On the other hand we have considered several models in which the modification of the bound nucleon structure functions is accounted for to describe the EMC effect in DIS scattering from nuclei. It turns out that within these models the cancellation of nuclear effects is expected to occur only at a level of ~ 3%, leading to an accuracy of ~ 12 % in the extraction of the neutron to proton structure function ratio at x ~ 0.7 -0.8$. Another consequence of considering a broad range of models of the EMC effect is that the previously suggested iteration procedure does not improve the accuracy of the extraction of the neutron to proton structure function ratio.Comment: revised version to appear in Phys. Rev. C; main modifications in Section 4; no change in the conclusion

The health impact of remarriage behavior on chronic obstructive pulmonary disease: findings from the US longitudinal survey

<p>Abstract</p> <p>Background</p> <p>Chronic obstructive pulmonary disease (COPD) is a major disease among adults, and its deterioration was reported to be associated with psychological imbalance. Meanwhile, bereavement and divorce have proven harmful to the health status of a surviving spouse. But few studies have been conducted to evaluate the remedial effect on survivors' health outcome by remarriage after bereavement. The present study thus examined the associations between remarriage and the onset of COPD.</p> <p>Methods</p> <p>Our cohort was drawn from Health and Retirement Study participants in the United States, and consisted of 2676 subjects who were divorced or bereaved from 1992 to 2002. We then followed them for up to 11 years and assessed the incidence rate of COPD using a Cox proportional hazard model after adjusting for marital status, age, gender, education and the number of cigarettes smoked.</p> <p>Results</p> <p>Among all subjects, 224 who remarried after bereavement or divorce tended to be younger and more male dominated. Remarriage after bereavement/divorce was associated with significantly decreased risk of COPD onset for overall subjects [hazard ratio (HR): 0.51, 95% confidence interval (95% CI): 0.28-0.94], female subjects [HR: 0.36, 95% CI: 0.13-0.98], and for those under 70 years old [HR: 0.36, 95% CI: 0.17-0.79].</p> <p>Conclusion</p> <p>This study investigates the impact of remarriage on health outcome based on a large-scale population survey and indicates that remarriage significantly correlates with reduced risk of COPD incidence, even after adjusting smoking habit.</p

Public Pensions and Labor Supply Over the Life Cycle

Virtually all developed countries face projected budget shortfalls for their public pension programs. The shortfalls arise for two reasons. First, populations in developed countries are aging rapidly. Second, until recently older individuals in developed countries have been retiring earlier. These two developments have created serious strains on public pension programs. In order to remain fiscally solvent, many governments have reformed their public pension schemes to encourage labor supply at older ages. These reforms include reductions in the generosity of public pensions and reduced penalties for working past the normal retirement age. In this paper, we consider how reforms to public pension systems affect labor supply over the life cycle. We put the recent empirical evidence on the effect of government pensions on labor supply in a life cycle context, and we present evidence on the effectiveness of tax reforms for stimulating labor supply over the life cycle. Our main conclusion is that the labor supply of older workers is responsive to changes in retirement incentives. The labor supply of younger workers is less responsive. Thus the trend towards lower taxes on older workers in many developed countries is likely to continue to fuel the recent trend towards later retirement. This, in turn, is likely to reduce the financial strain on public pension schemes

Long-Term Trends in the Levy Institute Measure of Economic Well-Being (LIMEW), United States, 1959-2004

We use here a new measure of household economic well-being called LIMEW. LIMEW is different in scope from the official U.S. Census Bureau measure of gross money income (MI) in that it includes taxes, noncash transfers, public consumption, income from wealth, and household production. We analyze trends in LIMEW from 1959 to 2004, and find that median LIMEW grew by 0.7 percent per year while median MI increased by 0.6 percent per year. LIMEW grew much slower than MI from 1959 to 1982, and much faster than MI from 1982 to 2004. In 2004, measured inequality was lower in LIMEW than MI (a difference of 5.5 Gini points); similarly, the increase in inequality between 1959 and 2004 was higher in MI than LIMEW (6.2 versus 5.1 Gini points). Much of the difference in these measures can be traced to the role of net government expenditures. According to both measures, the racial gap narrowed from 1959 to 1989; it then widened somewhat from 1989 to 2004 according to LIMEW but continued to narrow according to MI. The difference in time trends can be traced mainly to the rising income from wealth of white households relative to nonwhite households. The gap in well-being between single females and married couples widened from 1959 to 1989 and then narrowed slightly between 1989 and 2004 according to LIMEW but increased rather steadily from 1959 to 2004 according to MI. The fortunes of the elderly relative to the nonelderly showed considerable improvement from 1959 to 2004 according to LIMEW, almost reaching parity in 2004. In contrast, according to MI, the relative position of the elderly was about the same in 2004 as in 1959. In this instance, the difference in time trends can be traced mainly to rising income from wealth and government transfers accruing to the elderly relative to the nonelderly