2,023 research outputs found
Cooperatives: A Competitive Yardstick for Health Care
�As the national debate over health care reform continues, consideration is increasingly being given to the use of consumer-focused health care cooperatives as a key strategy for providing access to affordable health care and insurance for the millions of consumers and small businesses not presently able to afford or obtain adequate health care. Historically in many other sectors, the cooperative form of business has been successfully adapted by farmers, consumers, businesses, and public bodies as an effective strategy for attaining scale, lowering costs, improving incomes, providing services, and creating a better functioning marketplace. Reasons for forming cooperatives and analysis of cooperative movements can typically be traced to presence of a market failure (Schrader). Thus, as this nation seeks to remedy the plight of millions of uninsured urban and rural residents, cooperative models are properly on the table,
Estimating Values Of Milk Components To A Dairy Manufacturer
Two methods of assigning values to milk components are presented. One method is developed for determining values per point of protein and fat in a cheddar cheese plant. In this method, the value per point of solids is computed from the effect of variation in solids test on the firm s profits. It can be extended to apply to solids not fat instead of protein, and to other manufactured products. The procedure is presented in worksheet form and applied to a cheese plant. In the plant studied, the maximum premium per point of protein per 100 kg of milk is .13 per point per 100 pounds of milk)
Prospective, multicenter study of P4HB (Phasix) mesh for hernia repair in cohort at risk for complications: 3-Year follow-up
Background: This study represents a prospective, multicenter, open-label study to assess the safety, performance, and outcomes of poly-4-hydroxybutyrate (P4HB, Phasix) mesh for primary ventral, primary incisional, or multiply-recurrent hernia in subjects at risk for complications. This study reports 3-year clinical outcomes.
Materials and methods: P4HB mesh was implanted in 121 patients via retrorectus or onlay technique. Physical exam and/or quality of life surveys were completed at 1, 3, 6,12, 18, 24, and 36 months, with 5-year (60-month) follow-up ongoing.
Results: A total of n = 121 patients were implanted with P4HB mesh (n = 75 (62%) female) with a mean age of 54.7 +/- 12.0 years and mean BMI of 32.2 +/- 4.5 kg/m(2) (+/-standard deviation). Comorbidities included: obesity (78.5%), active smokers (23.1%), COPD (28.1%), diabetes mellitus (33.1%), immunosuppression (8.3%), coronary artery disease (21.5%), chronic corticosteroid use (5.0%), hypo-albuminemia (2.5%), advanced age (5.0%), and renal insufficiency (0.8%). Hernias were repaired via retrorectus (n = 45, 37.2% with myofascial release (MR) or n = 43, 35.5% without MR), onlay (n = 8, 6.6% with MR or n = 24, 19.8% without MR), or not reported (n = 1, 0.8%). 82 patients (67.8%) completed 36-month follow-up. 17 patients (17.9% +/- 0.4%) experienced hernia recurrence at 3 years, with n = 9 in the retrorectus group and n = 8 in the onlay group. SSI (n = 11) occurred in 9.3% +/- 0.03% of patients.
Conclusions: Long-term outcomes following ventral hernia repair with P4HB mesh demonstrate low recurrence rates at 3-year (36-month) postoperative time frame with no patients developing late mesh complications or requiring mesh removal. 5-year (60-month) follow-up is ongoing
GTTC Future of Ground Testing Meta-Analysis of 20 Documents
National research, development, test, and evaluation ground testing capabilities in the United States are at risk. There is a lack of vision and consensus on what is and will be needed, contributing to a significant threat that ground test capabilities may not be able to meet the national security and industrial needs of the future. To support future decisions, the AIAA Ground Testing Technical Committees (GTTC) Future of Ground Test (FoGT) Working Group selected and reviewed 20 seminal documents related to the application and direction of ground testing. Each document was reviewed, with the content main points collected and organized into sections in the form of a gap analysis current state, future state, major challenges/gaps, and recommendations. This paper includes key findings and selected commentary by an editing team
Flambeau Forest Blowdown
On July 4,1977, the 160 acre Flambeau River Forest Scientific Area was struck by a downburst of hurricane proportions (Fujita 1977) which destroyed most of the preserve. This stand had been one of the few relatively untouched old growth northern hardwood forest stands in the Upper Great Lakes region. Hemlock, yellow birch, and sugar maple are the dominant canopy tree species. The vegetation of this stand had been studied in 1967 (Anderson 1968) and 1973 (Anderson unpublished). Thus, the Flambeau River Forest Scientific Area in northern Wisconsin provides a unique opportunity to examine the changes following large scale disturbance in a stand of known composition. The purpose of our work was to quantify the extent of destruction from the 1977 blowdown and examine the reestablishment of woody species in a naturally disturbed northern hardwood forest stand
Algorithms for the Numerical Solution of a Finite-Part Integral Equation
The authors investigate a hypersingular integral equation which arises in the study of acoustic wave scattering by moving objects. A Galerkin method and two collocation methods are presented for solving the problem numerically. These numerical techniques are compared and contrasted in three test problems
An Spectrometer for Investigating the Spectral Momentum Density of Thin Films
An (e, 2e) spectrometer has been constructed for detecting scattered and recoiling electrons from a thin solid film. The cross section for observing the two electrons in coincidence is proportional to the spectral momentum density of the target. In this spectrometer the energy of the incident electron beam is 25 keV and the beam current is approximately 40 μA. The energy resolution (FWHM) is ≤4 eV. The momentum resolution (FWHM) can be varied from 0.2 to 1.0 Å−1. Preliminary coincidence data from an amorphous carbon film are presented
Patents and Business Models for Software Firms
We analyze the relation between patents and the different business models available to firms in the software industry. The paper builds on Cusumano\u27s work defining the differences among firms that sell products, those that provide services, and the hybrid firms that fall between those polar categories. Combining data from five years of Software Magazine\u27s Software 500 with data about the patenting practices of those software firms, we analyze the relation between the share of revenues derived from product sales and the firm\u27s patenting practices. Accounting for size, R&D intensity, and sector-specific effects, the paper finds a robust positive correlation between product-based business models and patenting rates. We also present in this draft preliminary results suggesting that there is no significant relation between patenting practices and the extent to which the firm\u27s revenues are derived from software products and services, as opposed to hardware or other lines of business
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