2,182 research outputs found
Freedom of Oceanic Research. Editied by Warren S. Wooster
My personal criticism of the book is primarily confined to its costs and its format
Forced Dedications As a Condition to Subdivision Approval--Associated Home Builders, Inc. v. City of Walnut Creek (Cal. 1971)
Associated Home Builders, Inc. v. City of Walnut Creek (Cal. 1971). In California, the Subdivision Map Act is the enabling statute for local supervision of subdivision development. Under the statute, the control of design and improvement of subdivisions is vested in the city or county with a limited right of judicial review to examine the reasonableness of the enacted ordinances. The act requires a subdivider to file a tentative map showing the design of the proposed subdivision for approval before the land can be legally sold
Endoscopic retrieval of a proximally migrated biliary stent using extracorporeal shockwave lithotripsy, electrohydraulic lithotripsy, and cholangioscopy with minisnare
Video 1ERCP was notable for a proximally migrated biliary stent. Cholangiogram demonstrated multiple filling defects consistent with choledocholithiasis surrounding the proximally migrated biliary stent. Retrieval of the stent was successful using cholangioscopy-directed electrohydraulic lithotripsy, extracorporeal shockwave lithotripsy, mechanical lithotripsy, and minisnare over the course of 2 ERCPs. Complete duct clearance of stones was accomplished with balloon sweeps
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A bulky glycocalyx fosters metastasis formation by promoting G1 cell cycle progression.
Metastasis depends upon cancer cell growth and survival within the metastatic niche. Tumors which remodel their glycocalyces, by overexpressing bulky glycoproteins like mucins, exhibit a higher predisposition to metastasize, but the role of mucins in oncogenesis remains poorly understood. Here we report that a bulky glycocalyx promotes the expansion of disseminated tumor cells in vivo by fostering integrin adhesion assembly to permit G1 cell cycle progression. We engineered tumor cells to display glycocalyces of various thicknesses by coating them with synthetic mucin-mimetic glycopolymers. Cells adorned with longer glycopolymers showed increased metastatic potential, enhanced cell cycle progression, and greater levels of integrin-FAK mechanosignaling and Akt signaling in a syngeneic mouse model of metastasis. These effects were mirrored by expression of the ectodomain of cancer-associated mucin MUC1. These findings functionally link mucinous proteins with tumor aggression, and offer a new view of the cancer glycocalyx as a major driver of disease progression
Velocity-resolved observations of water in Comet Halley
High resolution (lambda/delta lambda approx. = 3 x 10 to the 5th power) near-infrared observations of H2O emission from Comet Halley were acquired at the time of maximum post-perihelion geocentric Doppler shift. The observed widths and absolute positions of the H2O line profiles reveal characteristics of the molecular velocity field in the coma. These results support H2O outflow from a Sun-lit hemisphere or the entire nucleus, but not from a single, narrow jet emanating from the nucleus. The measured pre- and post-perihelion outflow velocities were 0.9 + or - 0.2 and 1.4 + or - 0.2 km/s, respectively. Temporal variations in the kinematic properties of the outflow were inferred from changes in the spectral line shapes. These results are consistent with the release of H2O into the coma from multiple jets
The Prevalence of Psychological Side Effects of Concussions in Division II and III Athletes in Ohio
Background: Concussions are becoming an epidemic as millions of athletes are diagnosed with concussions each year. Concussions are not homogenous injuries and should be managed uniquely. Often health care providers focus on the physical side effects of concussions and ignore the psychological side effects. Methods: In order to determine the prevalence of psychological side effects resulting from concussions and the frequency of ATCs or team physicians managing their psychological symptoms we sent out a survey. The survey included seventeen questions related to demographics and concussion symptoms that were sent to Division II and III athletes in Ohio over the age of 18. Results: Fifteen surveys were received from participants that had experienced at least one concussion. The most common psychological symptom reported was a decrease in energy (10), followed by lack of motivation (5), mood swings (4), anxiety (3), and fits of rage (2). Two respondents did not experience any emotional symptoms related to their concussion(s). With five of the fifteen respondents have been asked about emotional symptoms by their athletic trainer or team physician. Conclusion: Our survey was limited by time restraints and limited responses. Our survey did not bring statistically significant results. However, it did show that psychological effects are present in those with concussions. In addition, it showed that athletic trainers and team physicians need to be more holistic in their management of concussions
Multidimensional optimal droop control for DC microgrids in military applications
Reliability is a key consideration when microgrid technology is implemented in military applications. Droop control provides a simple option without requiring communication between microgrid components, increasing the control system reliability. However, traditional droop control does not allow the microgrid to utilize much of the power available from a solar resource. This paper applies an optimal multidimensional droop control strategy for a solar resource connected in a microgrid at a military patrol base. Simulation and hardware-in-the-loop experiments of a sample microgrid show that much more power from the solar resource can be utilized, while maintaining the system’s bus voltage around a nominal value, and still avoiding the need for communication between the various components
Managing the Tensions at the Intersection of the Triple Bottom Line: A Paradox Theory Approach to Sustainability Management
Corporate sustainability management encompasses multiple dimensions: environmental, social, and economic. Companies are increasingly evaluated within the public sphere, and within their own organizations, according to the degree to which they are perceived to simultaneously promote this nexus of virtues. This article seeks to explore the tensions frequently faced by organizations that strive to manage these dimensions and the role of public policy in that pursuit. A multiple–case study approach is utilized in which the authors selected case organizations according to whether they were attempting to manage the three dimensions of sustainability. The authors utilize paradox theory and a typology provided by previous research to understand the nature of the tensions that emerge in the selected case study organizations. They extend this previous work by examining the role of public policy in providing the situational conditions to make these paradoxical tensions salient, and they examine organizational responses to these conditions. Directions for firms, policy makers, and future researchers are provided on the basis of this study’s findings
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