We establish a localization theorem of Borel–Atiyah-Segal type for the equivariant operational
K
-theory of Anderson and Payne (Doc Math 20:357–399,
2015
). Inspired by the work of Chang–Skjelbred ...and Goresky–Kottwitz–MacPherson, we establish a general form of GKM theory in this setting, applicable to singular schemes with torus action. Our results are deduced from those in the smooth case via Gillet–Kimura’s technique of cohomological descent for equivariant envelopes. As an application, we extend Uma’s description of the equivariant
K
-theory of smooth compactifications of reductive groups to the equivariant operational
K
-theory of all, possibly singular, projective group embeddings.
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Whole Blood Transfusion Cap, Andrew P; Beckett, Andrew; Benov, Avi ...
Military medicine,
09/2018, Volume:
183, Issue:
suppl_2
Journal Article
Peer reviewed
Open access
Whole blood is the preferred product for resuscitation of severe traumatic hemorrhage. It contains all the elements of blood that are necessary for oxygen delivery and hemostasis, in nearly ...physiologic ratios and concentrations. Group O whole blood that contains low titers of anti-A and anti-B antibodies (low titer group O whole blood) can be safely transfused as a universal blood product to patients of unknown blood group, facilitating rapid treatment of exsanguinating patients. Whole blood can be stored under refrigeration for up to 35 days, during which it retains acceptable hemostatic function, though supplementation with specific blood components, coagulation factors or other adjuncts may be necessary in some patients. Fresh whole blood can be collected from pre-screened donors in a walking blood bank to provide effective resuscitation when fully tested stored whole blood or blood components are unavailable and the need for transfusion is urgent. Available clinical data suggest that whole blood is at least equivalent if not superior to component therapy in the resuscitation of life-threatening hemorrhage. Low titer group O whole blood can be considered the standard of care in resuscitation of major hemorrhage.
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Heat stress occupational exposure limits (OELs) were developed in the 1970s to prevent heat-related illnesses (HRIs). The OELs define the maximum safe wet bulb globe temperature (WBGT) for a given ...physical activity level. This study's objectives were to compute the sensitivity of heat stress OELs and determine if Heat Index could be a surrogate for WBGT. We performed a retrospective analysis of 234 outdoor work-related HRIs reported to the Occupational Safety and Health Administration in 2016. Archived NOAA weather data were used to compute each day's maximum WBGT and Heat Index. We defined the OELs' sensitivity as the percentage of incidents with WBGT > OEL. Sensitivity of the OELs was between 88% and 97%, depending upon our assumption about acclimatization status. In fatal cases, the OELs' sensitivity was somewhat higher (92-100%). We also computed the sensitivity of each possible Heat Index discrimination threshold. A Heat Index threshold of 80 °F (26.7 °C) was exceeded in 100% of fatalities and 99% of non-fatal HRIs. In a separate analysis, we created simulated weather data to assess associations of WBGT with Heat Index over a range of realistic outdoor heat conditions. These simulations demonstrated that for a given Heat Index, when radiant heat was included, WBGT was often higher than previously reported. The imperfect correlation between WBGT and Heat Index precluded a direct translation of OELs from WBGT into Heat Index. We conclude that WBGT-based heat stress exposure limits are highly sensitive and should be used for workplace heat hazard assessment. When WBGT is unavailable, a Heat Index alert threshold of approximately 80 °F (26.7 °C) could identify potentially hazardous workplace environmental heat.
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Based on articles written for the Fort Worth Star-Telegram, author Richard J. Gonzales draws on his educational, inner-city and professional life experiences to weave eyewitness testimony into issues ...facing Chicanos, including economic, health, education, criminal justice, politics, immigration, and cultural issues. Raza Rising presents a personal recounting of a Chicano's struggle with and understanding of the socio-economic policies and historical actions that impact their ascendancy. Raza Rising offers first-hand observations, supported by well-documented scholarly research, of Chicanos' growth and subsequent struggles to participate fully in North Texas' political and economic life. Raza Rising takes the reader to the organization of a Fort Worth immigration reform march, to the actual march with 20,000 people on Main Street on Palm Sunday, to a protest demonstration of the City of Farmers Branch's attempt to prohibit renting to the undocumented immigrant, to the author's awakening in Chicago on the importance of learning, and to his poignant experience as a guest speaker in a Fort Worth public school classroom. Other observations offer insight on how Chicanos struggle with their ethnic identity and understanding of their history. In addition, the book highlights important historical and political events that illustrate Chicanos' attempts to overcome barriers to their rise. At a time when global economic competition threatens the United States' first world status, this country must nurture academic excellence for all its citizens. Raza Rising provides specific explanations for the Chicano educational lag and workable solutions to accelerate their political, economic and academic achievements. Prophetic state and national demographers have forecasted the steady increase in Chicano populations and decrease in white populations. Raza Rising offers students, instructors, policy makers, politicians and neighbors a deeper understanding of Chicanos, who in the near future will transition from minority to majority status in Texas.
Deglycerolized red blood cells have been used by the U.S. military for half a century, starting with the Vietnam War. Deglycerolized red blood cells have a frozen storage life of 10 years, but ...require special equipment to thaw and deglycerolize. The available data show no difference in either efficacy with complications when compared to standard product red blood cells.
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Fever and Rash Gonzales Y Tucker, Richard Diego; Addepalli, Aravind
Emergency medicine clinics of North America
42, Issue:
2
Journal Article
Peer reviewed
Infectious causes of fever and rash pose a diagnostic challenge for the emergency provider. It is often difficult to discern rashes associated with rapidly progressive and life-threatening infections ...from benign exanthems, which comprise the majority of rashes seen in the emergency department. Physicians must also consider serious noninfectious causes of fever and rash. A correct diagnosis depends on an exhaustive history and head-to-toe skin examination as most emergent causes of fever and rash remain clinical diagnoses. A provisional diagnosis and immediate treatment with antimicrobials and supportive care are usually required prior to the return of confirmatory laboratory testing.
Heat stress, an environmental and occupational hazard, is associated with a spectrum of heat-related illnesses, including heat stroke, which can lead to death. CDC's National Institute for ...Occupational Safety and Health (NIOSH) publishes recommended occupational exposure limits for heat stress (1). These limits, which are consistent with those of the American Conference of Governmental Industrial Hygienists (ACGIH) (2), specify the maximum combination of environmental heat (measured as wet bulb globe temperature WBGT) and metabolic heat (i.e., workload) to which workers should be exposed. Exposure limits are lower for workers who are unacclimatized to heat, who wear work clothing that inhibits heat dissipation, and who have predisposing personal risk factors (1,2). These limits have been validated in experimental settings but not at outdoor worksites. To determine whether the NIOSH and ACGIH exposure limits are protective of workers, CDC retrospectively reviewed 25 outdoor occupational heat-related illnesses (14 fatal and 11 nonfatal) investigated by the Occupational Safety and Health Administration (OSHA) from 2011 to 2016. For each incident, OSHA assessed personal risk factors and estimated WBGT, workload, and acclimatization status. Heat stress exceeded exposure limits in all 14 fatalities and in eight of 11 nonfatal illnesses. An analysis of Heat Index data for the same 25 cases suggests that when WBGT is unavailable, a Heat Index screening threshold of 85°F (29.4°C) could identify potentially hazardous levels of workplace environmental heat. Protective measures should be implemented whenever the exposure limits are exceeded. The comprehensive heat-related illness prevention program should include an acclimatization schedule for newly hired workers and unacclimatized long-term workers (e.g., during early-season heat waves), training for workers and supervisors about symptom recognition and first aid (e.g., aggressive cooling of presumed heat stroke victims before medical professionals arrive), engineering and administrative controls to reduce heat stress, medical surveillance, and provision of fluids and shady areas for rest breaks.
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This book examines the applications of language learning motivation research theories and models from WEIRD (Western, educated, industrialized, rich, developed) contexts to the EFL situation in Asian ...countries. Themes include the use of L2 selves as a theoretical model of motivation, teacher motivation and demotivation in Asian educational systems.
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