Surgical Treatment of Liver Trauma: Technical Considerations and Case Reports

The incidence of abdominal trauma, and thus that of liver trauma, has been increasing in the past few years. Improvements in the understanding of the anatomy of the liver and improvements in diagnostic techniques have resulted in shorter and better operations with less delay between injury and surgery. Improvements in transportation to adequate hospital facilities and vigorous resuscitative measures have also contributed to lowering the mortality rate for this type of injury. Suggestions are made for the surgical management of liver injuries, together with illustrative case reports

Blueprint for the Dissemination of Evidence-Based Practices in Health Care

Proposes strategies for better dissemination of best practices through quality improvement campaigns, including campaigns aligned with adopting organizations' goals, practical implementation tools and guides, and networks to foster learning opportunities

Carbon budget of a shallow, lagoonal estuary: Transformations and source-sink dynamics along the river-estuary-ocean continuum

A comprehensive carbon budget was constructed to quantify carbon flows through the freshwater-marine continuum of a temperate, microtidal estuary. We performed coordinated measurements of dissolved inorganic carbon and total organic carbon fluxes to resolve spatial variability between and along the channel and shoals and diel variability across the entire estuary for 2 yr. Net ecosystem metabolism (NEM) was the most significant control on carbon flow within estuary regions. However, metabolic rates were spatially coupled such that counteracting fluxes across the channel-shoal gradient or along the river-ocean gradient resulted in system-wide NEM that was closely in balance (-3.0 +/- 3.3 to 1.1 +/- 4.4 molC m(-2) yr(-1)). Similarly, large diel and seasonal variability in air-water CO2 fluxes were observed during 72 spatial surveys, but these short-term variations generally cancelled out when aggregated to annual budget terms. Although atmospheric exchanges were small (-0.2 +/- 0.1 to 2.0 +/- 0.4 molC m(-2) yr(-1)), they were subject to large errors (+/- 4 molC m(-2) yr(-1)) if diel variability was neglected. Internal mechanisms that maintained balanced carbon flows were strongly impacted by river discharge and were only apparent by separately quantifying channel and shoal fluxes. Notably, metabolic responses of the shoal to river forcing outweighed the responses of the channel, and the net impact was contrary to prior relationships derived from synthesis of lower-resolution carbon budgets. Our budget demonstrates that resolution of carbon fluxes at appropriate scales, including channel-shoal and diel variability, is critical to characterizing ecosystem function and the fate of carbon within the river-ocean continuum

2014 Ruby Yearbook

A digitized copy of the 2014 Ruby, the Ursinus College yearbook.https://digitalcommons.ursinus.edu/ruby/1117/thumbnail.jp

Portfolio Vol. I N 2

Wiley, Thomas R. In the Cathedral, Mexico City . Picture. 2. Whitehead, Richard Jr. Izzy was a Lady, After All . Prose. 3. Beckham, Adela. Rain on a March morning . Poem. 6. Beckham, Adela. Heaven . Poem. 6. Deane, Dorothy. Temptation . Poem. 6. Kellogg, Elizabeth. Gruess Dich Gott . Prose. 7. Nadel, Norman. The Duchess . Poem. 8. Dick, Pewilla. The Sligo Fisherman . Prose. 9. Deane, Dorothy. Against the Winter . Poem 12. Flory, Doris Jean. A problem . Poem 12. Travis, Paul Bough. My First View of the Congo Forest . Picture. 13. Bellows, George. Stag at Sharkey\u27s . Picture. 13. B.C.W. Aspiration . Poem. 14. Stewart, John. On Record . Prose 14. Sweitzer, Harry J. Playing Around . Prose. 15. Ellsberg, Edward. Book Parade: Hell on Ice . Prose. 15. B.C.W. End of Winter . Poem. 16. Wiley, Thomas R. End of Winter . Picture. 16. Deeter, Robert. Television, How, Where, and When . Prose. 17. Brush, Jane. Love A La Mode . Poem. 20. Brush, Jane. Radio! . Poem. 20. Brush, Jane. Backward Glance . Poem. 20. Brush, Jane. Homo Paradoxus . Poem. 20. Brush, Jane. The Sardonic Slant . Poem. 20. Brush, Jane. Baths . Prose. 20. Wilson, Gordon. Brushword . Cartoon. 20

Dislocation-Mediated Melting: The One-Component Plasma Limit

The melting parameter $\Gamma_m$ of a classical one-component plasma is estimated using a relation between melting temperature, density, shear modulus, and crystal coordination number that follows from our model of dislocation-mediated melting. We obtain $\Gamma_m=172\pm 35,$ in good agreement with the results of numerous Monte-Carlo calculations.Comment: 8 pages, LaTe

Nonextensive Thermostatistics and the H-Theorem

The kinetic foundations of Tsallis' nonextensive thermostatistics are investigated through Boltzmann's transport equation approach. Our analysis follows from a nonextensive generalization of the ``molecular chaos hypothesis". For $q>0$, the $q$-transport equation satisfies an $H$-theorem based on Tsallis entropy. It is also proved that the collisional equilibrium is given by Tsallis' $q$-nonextensive velocity distribution.Comment: 4 pages, no figures, corrected some typo

How do nutrient conditions and species identity influence the impact of mesograzers in eelgrass-epiphyte systems?

Coastal eutrophication is thought to cause excessive growth of epiphytes in eelgrass beds, threatening the health and survival of these ecologically and economically valuable ecosystems worldwide. Mesograzers, small crustacean and gastropod grazers, have the potential to prevent seagrass loss by grazing preferentially and efficiently on epiphytes. We tested the impact of three mesograzers on epiphyte biomass and eelgrass productivity under threefold enriched nutrient concentrations in experimental indoor mesocosm systems under summer conditions. We compared the results with earlier identical experiments that were performed under ambient nutrient supply. The isopod Idotea baltica, the periwinkle Littorina littorea, and the small gastropod Rissoa membranacea significantly reduced epiphyte load under high nutrient supply with Rissoa being the most efficient grazer, but only high densities of Littorina and Rissoa had a significant positive effect on eelgrass productivity. Although all mesograzers increased epiphyte ingestion with higher nutrient load, most likely as a functional response to the quantitatively and qualitatively better food supply, the promotion of eelgrass growth by Idotea and Rissoa was diminished compared to the study performed under ambient nutrient supply. Littorina maintained the level of its positive impact on eelgrass productivity regardless of nutrient concentrations