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Biomedical subjects

David Moskowitz

Publications and source records attributed to David Moskowitz.

6 recordsLinked to original sources
PubMed2006

Simple rules guide dragonfly migration.

Every year billions of butterflies, dragonflies, moths and other insects migrate across continents, and considerable progress has been made in understanding population-level migratory phenomena. However, little is known about destinations and strategies of individual insects. We attached miniaturized radio transmitters (ca 300 mg) to the thoraxes of 14 individual dragonflies (common green darners, Anax junius) and followed them during their autumn migration for up to 12 days, using receiver-equipped Cessna airplanes and ground teams. Green darners exhibited distinct stopover and migration days. On average, they migrated every 2.9+/-0.3 days, and their average net advance was 58+/-11 km in 6.1+/-0.9 days (11.9+/-2.8 km d-1) in a generally southward direction (186+/-52 degrees). They migrated exclusively during the daytime, when wind speeds were less than 25 km h-1, regardless of wind direction, but only after two nights of successively lower temperatures (decrease of 2.1+/-0.6 degrees C in minimum temperature). The migratory patterns and apparent decision rules of green darners are strikingly similar to those proposed for songbirds, and may represent a general migration strategy for long-distance migration of organisms with high self-propelled flight speeds.

Animal Migration↗
PubMed2006

Students in the community: an interprofessional student-run free clinic.

Students in the Community (SITC) is an interprofessional collaboration of health science students at the University of Washington. SITC runs a weekly free clinic at the Aloha Inn, a transitional housing facility for 70 homeless men and women in downtown Seattle. The focus of this clinic is on health education, chronic disease management, and re-integration of patients into the healthcare infrastructure. SITC serves as a valuable service learning opportunity for students. In addition to direct clinical services, students gain experience in planning health education strategies, community collaboration, and evaluating intervention outcomes. SITC also oversees a lecture and discussion-based elective course at the University of Washington focused on health issues of the homeless community and provides formal teaching which complements the service-learning component of the endeavor.

Ambulatory Care Facilities↗
PubMed2005

The safety and efficacy of "bloodless" cardiac surgery.

Nearly 20% of blood transfusions in the United States are associated with cardiac surgery. Despite the many blood conservation techniques that are available, safe, and efficacious for patients undergoing cardiac surgery, many of these operations continue to be associated with significant amounts of blood transfusion. Although surgical bleeding after cardiopulmonary bypass is a common problem as reflected by the substantial use of blood products, it is the individual physician and institutional behavior that have been identified as reasons for transfusion and not necessarily patient comorbidity or blood loss. Transfusion rates in cardiac surgery remain high despite major advances in perioperative blood conservation, with large variations among individual centers. The adoption of available blood conservation techniques, either alone or in combination in patients undergoing cardiac surgery, could result in an estimated 75% reduction of unnecessary transfusions. The success of previously reported blood conservations programs in cardiac surgery should call for a reevaluation of allogeneic transfusion practices in patients undergoing cardiac surgery. By applying the numerous reported blood conservation strategies for the management of patients presenting for cardiac surgery, we can preserve our dwindling blood resources and help alleviate some of the direct costs of blood as well as the indirect costs of treating noninfectious and infectious complications of transfusion.

Blood Preservation↗