The Car Sharer\u27s Companion: An Owner\u27s Manual for Car Sharing in Portland, Oregon

So, you want to start a car sharing organization. The Car Sharer\u27s Companion, researched and written by the team members of CarShare Cascadia Mobility Consultants, is your handbook and resource guide for starting a car sharing organization in Portland, Oregon. After your operation mobilizes, the Companion can continue to serve as a reference. It comes in two parts. Part I: An Ignition Guide presents the steps to start up a car sharing operation. Its four chapters cover how to build and incorporate your organization, how to find and serve a market for car sharing, what decisions to make in investment and insurance, and a what strategies to use for managing the operation. The Ignition Guide encourages you with evidence that, once knowing how, where, with whom to start an car sharing\u27 organization, you can develop an economically feasible, convenient, and marketable enterprise in Portland. The handbook format includes information, advice, and italicized illustrative case studies. Part II: A Resource Guide is useful for when you seek more in-depth information about the subjects discussed in Part I. It provides a subject index and an annotated bibliography to the sources that inform this handbook. Moreover, it provides a list of potential car sharers--the beginnings ofa network in Portland. Section I ofthe Resource Guide presents the subject-by-subject resource directory. Its subjects match the four chapters in the Ignition Guide above. For instance, after reading about the best corporate structure in section 1-2 of Chapter 1: Mobilizing Your Organization in the handbook, you can turn to the section 1-2 of the resource directory to find an index of sources on corporate form. Section II of the Resource guide is not arranged by subject. It is an alphabetized, fully annotated source bibliography. Sources include a variety of interviews, meetings, correspondences, and also annotated literature entries that support our findings. Finally, we have provided a glossary ofthe key car sharing concepts that drive the mobility sharing movement. Read these on the following page to prime yourself for your journey into the wonderful world of car sharing. And believe us, it is truly a beautiful place. So turn that page and twist that ignition key. Let\u27s hit the road

Isoscalar dipole strength in ^{208}_{82}Pb_{126}: the spurious mode and the strength in the continuum

Isoscalar dipole (compression) mode is studied first using schematic harmonic-oscillator model and, then, the self-consistent Hartree-Fock (HF) and random phase approximation (RPA) solved in coordinate space. Taking ^{208}Pb and the SkM* interaction as a numerical example, the spurious component and the strength in the continuum are carefully examined using the sum rules. It is pointed out that in the continuum calculation one has to use an extremely fine radial mesh in HF and RPA in order to separate, with good accuracy, the spurious component from intrinsic excitations.Comment: 19 pages, 2 figure

Characteristics and outcomes of culture-negative prosthetic joint infections from the Prosthetic Joint Infection in Australia and New Zealand Observational (PIANO) cohort study

Introduction: Culture-negative (CN) prosthetic joint infections (PJIs) account for approximately 10 % of all PJIs and present significant challenges for clinicians. We aimed to explore the significance of CN PJIs within a large prospective cohort study, comparing their characteristics and outcomes with culture-positive (CP) cases. Methods: The Prosthetic joint Infection in Australia and New Zealand Observational (PIANO) study is a prospective, multicentre observational cohort study that was conducted at 27 hospitals between 2014 and 2017. We compared baseline characteristics and outcomes of all patients with CN PJI from the PIANO cohort with those of CP cases. We report on PJI diagnostic criteria in the CN cohort and apply internationally recognized PJI diagnostic guidelines to determine optimal CN PJI detection methods. Results: Of the 650 patients with 24-month outcome data available, 55 (8.5 %) were CN and 595 were CP. Compared with the CP cohort, CN patients were more likely to be female (32 (58.2 %) vs. 245 (41.2 %); p = 0.016), involve the shoulder joint (5 (9.1 %) vs. 16 (2.7 %); p = 0.026), and have a lower mean C-reactive protein (142 mg L−1 vs. 187 mg L−1; p = 0.016). Overall, outcomes were superior in CN patients, with culture negativity an independent predictor of treatment success at 24 months (adjusted odds ratio, aOR, of 3.78 and 95 %CI of 1.65–8.67). Suboptimal diagnostic sampling was common in both cohorts, with CN PJI case detection enhanced using the Infectious Diseases Society of America PJI diagnostic guidelines. Conclusions: Current PJI diagnostic guidelines vary substantially in their ability to detect CN PJI, with comprehensive diagnostic sampling necessary to achieve diagnostic certainty. Definitive surgical management strategies should be determined by careful assessment of infection type, rather than by culture status alone

Earthing the Anthropos? From ‘socializing the Anthropocene’ to geologizing the social

Responding to claims of Anthropocene geoscience that humans are now geological agents, social scientists are calling for renewed attention to the social, cultural, political and historical differentiation of the Anthropos. But does this leave critical social thought’s own key concepts and categories unperturbed by the Anthropocene provocation to think through dynamic earth processes? Can we ‘socialize the Anthropocene’ without also opening ‘the social’ to climate, geology and earth system change? Revisiting the earth science behind the Anthropocene thesis and drawing on social research that is using climatology and earth systems thinking to help understand socio-historical change, this article explores some of the possibilities for ‘geologizing’ social thought. While critical social thought’s attention to justice and exclusion remains vital, it suggests that responding to Anthropocene conditions also calls for a kind of ‘geo-social’ thinking that relates human diversity and social difference to the potentiality and multiplicity of the earth itself

Globally Anisotropic High Porosity Silica Aerogels

We discuss two methods by which high porosity silica aerogels can be engineered to exhibit global anisotropy. First, anisotropy can be introduced with axial strain. In addition, intrinsic anisotropy can result during growth and drying stages and, suitably controlled, it can be correlated with preferential radial shrinkage in cylindrical samples. We have performed small angle X-ray scattering (SAXS) to characterize these two types of anisotropy. We show that global anisotropy originating from either strain or shrinkage leads to optical birefringence and that optical cross-polarization studies are a useful characterization of the uniformity of the imposed global anisotropy.Comment: 18 pages, 14 figures, submitted to Journal of Non-Crystalline Solid

Stationkeeping, Orbit Determination, and Attitude Control for Spacecraft in Near Rectilinear Halo Orbits

Final document is attached. From a Near Rectilinear Halo Orbit (NRHO), NASA's Gateway at the Moon is planned to serve as a proving ground and a staging location for human missions beyond Earth. Stationkeeping, Orbit Determination (OD), and attitude control are examined for uncrewed and crewed Gateway configurations. Orbit maintenance costs are investigated using finite maneuvers, considering skipped maneuvers and perturbations. OD analysis assesses DSN tracking and identifies OD challenges associated with the NRHO and crewed operations. The Gateway attitude profile is simulated to determine an effective equilibrium attitude. Attitude control propellant use and sizing of the required passive attitude control system are assessed