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LA, United States

Anand A.G.,la
The Journal of the Louisiana State Medical Society : official organ of the Louisiana State Medical Society | Year: 2013

The total laryngectomy is a surgical procedure that requires technically sound reconstruction in order to preserve a patient's swallowing function. Traditionally, a handsewn technique has been utilized to accomplish this endeavor. Recent applications of surgical stapling devices have been noted in an attempt to circumvent the need for handsewn reconstruction. This paper documents the application of a surgical stapling device in reconstructing a total laryngectomy defect. A brief review of the literature is provided to compare the differences between handsewn techniques and stapling techniques. Source


Zapata U.,Texas A&M University | Zapata U.,EAFIT University | Metzger K.,Hofstra University | Wang Q.,Mercer University | And 3 more authors.
Bone | Year: 2010

This study reports the elastic material properties of cortical bone in the mandible of juvenile Alligator mississippiensis obtained by using an ultrasonic wave technique. The elastic modulus, the shear modulus, and Poisson's ratio were measured on 42 cylindrical Alligator bone specimens obtained from the lingual and facial surfaces of 4 fresh Alligator mandibles. The data suggest that the elastic properties of alligator mandibular cortical bone are similar to those found in mammals and are orthotropic. The properties most resemble those found in the cortex of mammalian postcranial long bones where the bone is most stiff in one direction and much less stiff in the two remaining orthogonal directions. This is different from cortical bone found in the mandibles of humans and some monkeys, where the bone has greatest stiffness in one direction, much less stiffness in another direction, and an intermediate amount in the third orthogonal direction. This difference suggests a relationship between levels of orthotropy and bending stress. The comparability of these elastic moduli to those of other vertebrates suggest that the high bone strain magnitudes recorded from the alligator mandible in vivo are not attributable to a lower stiffness of alligator mandibular bone. © 2009 Elsevier Inc. Source


Stauffer B.A.,la | Stauffer B.A.,Lamont Doherty Earth Observatory | Gellene A.G.,la | Schnetzer A.,la | And 5 more authors.
Marine Ecology Progress Series | Year: 2012

Mass mortality events are ephemeral phenomena in marine ecosystems resulting from anthropogenically enhanced and natural processes. A fish kill in King Harbor, Redondo Beach, California, USA, in March 2011 killed ̃1.54 × 105 kg of fish and garnered international attention as a marine system out of balance. Here, we present data collected prior to, during, and following the event that describe the oceanographic conditions preceding the event, spatial extent of hypoxia (dissolved oxygen < 1.4 ml l-1), and subsequent recovery of the harbor. In situ sensors within the harbor revealed rapid decreases in dissolved oxygen in surface waters from 7 to 9 March 2011, coincident with the mortality event on 8 March. Continuous observations provided evidence that respiration of a large population of fish within the harbor, potentially exacerbated by an incursion of upwelled low-oxygen water, resulted in significant oxygen reduction in the harbor and ultimately caused mortality of the fish population. The hydrodynamically constrained northern basin transitioned to nearly anoxic conditions, while spatially variable hypoxia was observed throughout the harbor and adjacent bay for <10 d following the event. Initial recovery of dissolved oxygen in the harbor was facilitated by storm-mediated mixing. No connection was apparent between increased algal biomass or phycotoxins within the harbor and the mortality event, although the fish showed evidence of prior exposure to the algal neurotoxin domoic acid. Our findings underscore the essential role of ocean observing and rapid response in the study of these events and the role that oceanographic processes play in hypoxia-driven fish mortalities. Alterations in upwelling regimes as a consequence of climate change are likely to further increase the frequency and magnitude of upwelling-driven hypoxia and mortality events. © Inter-Research 2012. Source


Aragon G.,la | Abaffy L.,la
ENR (Engineering News-Record) | Year: 2015

More than 1,000 women craftworkers convened in Los Angeles in May 2015 for a union sponsored conference to share best practices in everything from pre-apprenticeships to coping with a hostile workplace to long-term career creation. The goal of this conference is to increase the numbers of women coming into the building trades and to enable them to stay in the trades by giving them the skills to succeed and by supporting women's leadership on the job and in their unions. Debra Chaplan, the council's director of special programs and conference coordinator, said the focus on pre-apprenticeships was a new component of the gathering, which has grown substantially since it began. Kelly Jenkins Pultz, a regional U.S. Labor Dept. official, said the agency is focused on creating fair and equal wages for women through apprenticeships that can help them move into high growth areas of construction. Melina Harris, a union carpenter and president of Seattle-based Sisters in the Building Trades, said the event is a key support tool. Source

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