Response analyzers for sensors Patent

Response analyzing apparatus for liquid vapor interface sensor of sloshing rocket propellan

Physical Drivers of Phytoplankton Bloom Initiation in the Southern Ocean's Scotia Sea

Abstract: The Scotia Sea is the site of one of the largest spring phytoplankton blooms in the Southern Ocean. Past studies suggest that shelf‐iron inputs are responsible for the high productivity in this region, but the physical mechanisms that initiate and sustain the bloom are not well understood. Analysis of profiling float data from 2002 to 2017 shows that the Scotia Sea has an unusually shallow mixed‐layer depth during the transition from winter to spring, allowing the region to support a bloom earlier in the season than elsewhere in the Antarctic Circumpolar Current. We compare these results to the mixed‐layer depth in the 1/6° data‐assimilating Southern Ocean State Estimate and then use the model output to assess the physical balances governing mixed‐layer variability in the region. Results indicate the importance of lateral advection of Weddell Sea surface waters in setting the stratification. A Lagrangian particle release experiment run backward in time suggests that Weddell outflow constitutes 10% of the waters in the upper 200 m of the water column in the bloom region. This dense Weddell water subducts below the surface waters in the Scotia Sea, establishing a sharp subsurface density contrast that cannot be overcome by wintertime convection. Profiling float trajectories are consistent with the formation of Taylor columns over the region's complex bathymetry, which may also contribute to the unique stratification. Furthermore, biogeochemical measurements from 2016 and 2017 bloom events suggest that vertical exchange associated with this Taylor column enhances productivity by delivering nutrients to the euphotic zone

Beyond Unprecedented S3 Ep3: Boardroom Ballot Battles and the Universal Proxy

The U.S. Securities and Exchange Commission recently adopted rules mandating the use of universal proxy cards for electing directors to the boards of public companies. Broadridge Financial Solutions Chief Legal Officer Keir Gumbs discusses the new rules and the potential repercussions of universal proxy card voting for investors and corporations.https://scholarship.law.columbia.edu/beyond_unprecedented_3/1003/thumbnail.jp

Beyond Unprecedented S3 Ep4: Inflation: Not Dead Yet

Over the past 24 months, inflation has soared in the United States, the United Kingdom, and elsewhere. Huw Pill, Chief Economist and Executive Director for Monetary Analysis and research for the Bank of England, discusses the factors driving high inflation and efforts to curb rising prices. (This episode was recorded on April 18, 2023.)https://scholarship.law.columbia.edu/beyond_unprecedented_3/1004/thumbnail.jp

When Operating on Dead People Saves Lives: Benefits of Surgical Organ Donor Intensivists

Solid organ transplantation has emerged as a life-saving treatment for many patients suffering from end-stage organ failure. Organs have been successfully recovered after a variety of aggressive interventions. We propose that decompressive laparotomy, when clinically indicated, should be considered in the aggressive resuscitation of potential organ donors. A thorough literature review examining aggressive interventions on potential organ donors was conducted after experience with a unique case at this institution. Articles were reviewed for the types of interventions performed as well as the time frame in relation to organ donation. In our case, several ethical issues were raised when considering decompressive laparotomy in a patient pronounced dead by neurologic criteria. We propose that having a surgical intensivist involved in the management of potential donors will further increase the salvage rate, as more invasive resuscitation options are possible

When Operating on Dead People Saves Lives: Benefits of Surgical Organ Donor Intensivists

Solid organ transplantation has emerged as a life-saving treatment for many patients suffering from end-stage organ failure. Organs have been successfully recovered after a variety of aggressive interventions. We propose that decompressive laparotomy, when clinically indicated, should be considered in the aggressive resuscitation of potential organ donors. A thorough literature review examining aggressive interventions on potential organ donors was conducted after experience with a unique case at this institution. Articles were reviewed for the types of interventions performed as well as the time frame in relation to organ donation. In our case, several ethical issues were raised when considering decompressive laparotomy in a patient pronounced dead by neurologic criteria. We propose that having a surgical intensivist involved in the management of potential donors will further increase the salvage rate, as more invasive resuscitation options are possible

Beyond Unprecedented S3 Ep2 ESG: Losing Its Cool

The corporate environmental, social, and governance (ESG) movement has come under fire. After many large corporations began to adopt specific ESG measures in response to shareholder pressure, other shareholder groups are trying to undo them. Inclusive Capital Partners co-founders Lynn Forester de Rothschild ’79 and Jeff Ubben discuss the rise in “anti-woke” shareholder activism, the politicization of ESG, and what lies ahead.https://scholarship.law.columbia.edu/beyond_unprecedented_3/1002/thumbnail.jp