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Temperature management

Megan K Creutzburg, Robert M Scheller, Melissa S Lucash, Stephen D LeDuc, Mark G Johnson
Balancing economic, ecological and social values has long been a challenge in the forests of the Pacific Northwest, where conflict over timber harvest and old-growth habitat on public lands has been contentious for the past several decades. The Northwest Forest Plan, adopted two decades ago to guide management on federal lands, is currently being revised as the region searches for a balance between sustainable timber yields and habitat for sensitive species. In addition, climate change imposes a high degree of uncertainty on future forest productivity, sustainability of timber harvest, wildfire risk, and species habitat...
October 21, 2016: Ecological Applications: a Publication of the Ecological Society of America
Visweshwar Regode, Sreeramulu Kuruba, Akbar S Mohammad, Hari C Sharma
Bacillus thuringiensis toxin proteins are deployed in transgenic plants for pest management. The present studies were aimed at characterization of gut bacterial proteases involved in activation of inactive Cry1Ac protoxin (pro-Cry1Ac) to active toxin in Helicoverpa armigera. Bacterial strains were isolated from H. armigera midgut and screened for their proteolytic activation toward pro-Cry1Ac. Among 12 gut bacterial isolates seven isolates showed proteolytic activity, and proteases from three isolates (IVS1, IVS2, and IVS3) were found to be involved in the proteolytic conversion of pro-Cry1Ac into active toxin...
2016: Frontiers in Microbiology
Markus Hoffmann, Asita Fazel, Kai-Gerrit Mews, Petra Ambrosch
OBJECTIVES: To underline the value of the microendoscopic CO2 -Laser assisted treatment (MEDCO2 ) of Zenker's diverticulum by investigating a large patient cohort treated in a single medical center. DESIGN: Retrospective Cohort Study of consecutive patients. SETTING: Dept. of Otorhinolaryngology, Head & Neck Surgery, Christian-Albrechts-University Kiel, Germany. PARTICIPANTS: 227 patients with Zenkers' diverticulum were treated by MEDCO2 and the results were compared with those reported in the literature for the open transcervical approach (OTA) and the endoscopic staple-assisted esophagodiverticulostomy (ESED)...
October 19, 2016: Clinical Otolaryngology
Daniel W Birch, Jerry T Dang, Noah J Switzer, Namdar Manouchehri, Xinzhe Shi, Ghassan Hadi, Shahzeer Karmali
BACKGROUND: Intraoperative hypothermia during both open and laparoscopic abdominal surgery may be associated with adverse events. For laparoscopic abdominal surgery, the use of heated insufflation systems for establishing pneumoperitoneum has been described to prevent hypothermia. Humidification of the insufflated gas is also possible. Past studies on heated insufflation have shown inconclusive results with regards to maintenance of core temperature and reduction of postoperative pain and recovery times...
October 19, 2016: Cochrane Database of Systematic Reviews
Jie Chen, Jens H Walther, Petros Koumoutsakos
The increasing power density and the decreasing dimensions of transistors present severe thermal challenges to the design of modern microprocessors. Furthermore, new technologies such as three-dimensional chip-stack architectures require novel cooling solutions for their thermal management. Here, we demonstrate, through transient heat-dissipation simulations, that a covalently bonded graphene-carbon nanotube (G-CNT) hybrid immersed in water is a promising solution for the ultrafast cooling of such high-temperature and high heat-flux surfaces...
October 19, 2016: Nanotechnology
Rebecca DeVries, David Kriebel, Susan Sama
BACKGROUND: Exacerbations of chronic obstructive pulmonary disease (COPD) contribute greatly to increased morbidity, mortality and diminished quality of life. Recent studies report moderately strong positive associations between exposures to several air pollutants and COPD-related emergency department (ED) visits and hospital admissions (HA). Studies that use clinically defined exacerbations rather than counting ED visits and HA may be more sensitive to environmental triggers like air pollution, but very few such studies exist...
October 18, 2016: Environmental Health: a Global Access Science Source
Andres Fuentes-Ramirez, Joseph W Veldman, Claus Holzapfel, Kirk A Moloney
Novel fire regimes are an important cause and consequence of global environmental change that involve interactions among biotic, climatic, and human components of ecosystems. Plant flammability is key to these interactions, yet few studies directly measure flammability or consider how multiple species with different flammabilities interact to produce novel fire regimes. Deserts of the southwestern United States are an ideal system for exploring how novel fire regimes can emerge when fire-promoting species invade ecosystems comprised of species that did not evolve with fire...
October 2016: Ecological Applications: a Publication of the Ecological Society of America
Jessica A Castillo, Clinton W Epps, Mackenzie R Jeffress, Chris Ray, Thomas J Rodhouse, Donelle Schwalm
Landscape connectivity is essential for maintaining viable populations, particularly for species restricted to fragmented habitats or naturally arrayed in metapopulations and facing rapid climate change. The importance of assessing both structural connectivity (physical distribution of favorable habitat patches) and functional connectivity (how species move among habitat patches) for managing such species is well understood. However, the degree to which functional connectivity for a species varies among landscapes, and the resulting implications for conservation, have rarely been assessed...
September 2016: Ecological Applications: a Publication of the Ecological Society of America
Fei Hu, Jiayan Zhang, Shupeng Shi, Zhang Zhou
BACKGROUND: Febrile illness in young children usually indicates an underlying infection and is a cause of concern for parents and carers. It is very important that healthcare professionals know how to recognize fever, assess children with fever, treat children with fever and role of nurses and parents. This paper outlines a best practice implementation project on the management of fever in children in an emergency department. OBJECTIVES: To audit current practice of fever management for children in an emergency department and to implement strategies to standardize pediatric fever management based on evidence-based practice guidelines...
September 2016: JBI Database of Systematic Reviews and Implementation Reports
Gyuho Song, Yeonho You, Wonjoon Jeong, Junwan Lee, Yongchul Cho, Seungwhan Lee, Seung Ryu, Jinwoong Lee, Seungwhan Kim, Insool Yoo
OBJECTIVE: We investigated whether patients with out-of-hospital cardiac arrest (OHCA) due to an acute myocardial infarction without cardiogenic shock required higher doses of vasopressors with low targeted temperature management (TTM) after return of spontaneous circulation. METHODS: We included consecutive comatose patients resuscitated from OHCA between January 2011 and December 2013. Patients with return of spontaneous circulation, regional wall motion abnormality on echocardiography, and coronary artery stenosis of ≥70% on percutaneous coronary artery angiography were enrolled...
March 2016: Clin Exp Emerg Med
Nikolaos Th Skoulikidis, Leonidas Vardakas, Yorgos Amaxidis, Panagiotis Michalopoulos
Desiccation and re-flooding processes play a key role on hydrological features of non-perennial rivers. This study addresses the effects of these processes on the aquatic quality and unravels underlying biogeochemical processes of an intermittent river reach in southern Greece containing a spring-fed pool. Combined spatio-temporal sampling for physicochemical parameters, major ions and nutrients and high frequency automatic monitoring during a hydrological year (2010-2011) indicate that during the dry period, solute variation was controlled by "concentration" processes (i...
October 13, 2016: Science of the Total Environment
Philippa Douglas, Sean F Tyrrel, Robert P Kinnersley, Michael Whelan, Philip J Longhurst, Anna L Hansell, Kerry Walsh, Simon J T Pollard, Gillian H Drew
Bioaerosols are released in elevated quantities from composting facilities and are associated with negative health effects, although dose-response relationships are unclear. Exposure levels are difficult to quantify as established sampling methods are costly, time-consuming and current data provide limited temporal and spatial information. Confidence in dispersion model outputs in this context would be advantageous to provide a more detailed exposure assessment. We present the calibration and validation of a recognised atmospheric dispersion model (ADMS) for bioaerosol exposure assessments...
September 26, 2016: International Journal of Hygiene and Environmental Health
Isabella Bertani, Cara E Steger, Daniel R Obenour, Gary L Fahnenstiel, Thomas B Bridgeman, Thomas H Johengen, Michael J Sayers, Robert A Shuchman, Donald Scavia
Cyanobacteria blooms are a major environmental issue worldwide. Our understanding of the biophysical processes driving cyanobacterial proliferation and the ability to develop predictive models that inform resource managers and policy makers rely upon the accurate characterization of bloom dynamics. Models quantifying relationships between bloom severity and environmental drivers are often calibrated to an individual set of bloom observations, and few studies have assessed whether differences among observing platforms could lead to contrasting results in terms of relevant bloom predictors and their estimated influence on bloom severity...
October 12, 2016: Science of the Total Environment
Yu Yang, Wendy Ballent, Brooke K Mayer
Phosphorus (P) is a critical, nonrenewable nutrient; yet excess discharges can lead to eutrophication and deterioration of water quality. Thus, P removal from water must be coupled with P recovery to achieve sustainable P management. P-specific proteins provide a novel, promising approach to recover P from water. Bacterial phosphate binding proteins (PBP) are able to effectively remove phosphate, achieving extremely low levels in water (i.e., 0.015 mg-P L(-1)). A prerequisite of using PBP for P recovery, however, is not only removal, but also controlled P release, which has not yet been reported...
October 14, 2016: FEMS Microbiology Letters
Tainã Rapp Py-Daniel, Anderson Kennedy Soares De-Lima, Fabiano Campos Lima, Aline Pic-Taylor, Osmindo Rodrigues Pires Junior, Antonio Sebben
The mouse, chicken, African clawed frog and zebrafish are considered "model organisms" due to their extensive embryological and genetic characterization. However they are far from representative of known diversity, impairing phylogenetic analyses of developmental patterns. Since squamates have historically received limited attention in developmental studies, we here describe the developmental sequence for Tropidurus torquatus, and provide the first post-ovipositional developmental series for the lizard family Tropiduridae...
October 14, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
Kathleen Meert, Russell Telford, Richard Holubkov, Beth S Slomine, James R Christensen, J Michael Dean, Frank W Moler
OBJECTIVE: To explore the safety and efficacy of targeted temperature management amongst infants with out-of-hospital cardiac arrest due to an apparent life threatening event (ALTE) recruited to the Therapeutic Hypothermia after Paediatric Cardiac Arrest Out-of-Hospital trial. METHODS: Fifty-four infants (48h to <1year of age) with ALTE who received chest compressions for ≥2min, were comatose, and required mechanical ventilation after return of circulation were included...
October 11, 2016: Resuscitation
Cornelia Genbrugge, Ward Eertmans, Ingrid Meex, Margaretha Van Kerrebroeck, Noami Daems, An Creemers, Frank Jans, Willem Boer, Jo Dens, Cathy De Deyne
BACKGROUND: The aim of this study was to elucidate the possible role of cerebral saturation monitoring in the post-cardiac arrest setting. METHODS: Cerebral tissue saturation (SctO2) was measured in 107 successfully resuscitated out-of-hospital cardiac arrest patients for 48 hours between 2011 and 2015. All patients were treated with targeted temperature management, 24 hours at 33 °C and rewarming at 0.3 °C per hour. A threshold analysis was performed as well as a linear mixed models analysis for continuous SctO2 data to compare the relation between SctO2 and favorable (cerebral performance category (CPC) 1-2) and unfavorable outcome (CPC 3-4-5) at 180 days post-cardiac arrest in OHCA patients...
October 13, 2016: Critical Care: the Official Journal of the Critical Care Forum
Jaime L Stephens, Eric C Dinger, John D Alexander, Sean R Mohren, C John Ralph, Daniel A Sarr
We examined avian community ecology in the Klamath Ecoregion and determined that individual bird species co-exist spatially to form 29 statistically distinguishable bird groups. We identified climate, geography, and vegetation metrics that are correlated with these 29 bird groups at three scales: Klamath Ecoregion, vegetation formation (agriculture, conifer, mixed conifer/hardwood, shrubland), and National Park Service unit. Two climate variables (breeding season mean temperature and temperature range) and one geography variable (elevation) were correlated at all scales, suggesting that for some vegetation formations and park units there is sufficient variation in climate and geography to be an important driver of bird communities, a level of variation we expected only at the broader scale...
2016: PloS One
Prasita Kshirsagar, Shaylika Chauhan, Dinesh Samel
BACKGROUND: The authors wished to develop a scoring system for evaluating patients presenting with febrile thrombocytopenia for risk stratification, predicting patient outcome and optimization of care especially in resource poor countries. OBJECTIVE: 1. To decide a protocol in the management of patients with fever and thrombocytopenia. 2. To develop screening or therapeutic guidelines (early warning score-EWS) in febrile thrombocytopenic patients and decide about therapeutic interventions...
February 2016: Journal of the Association of Physicians of India
Gabriel Macasiray Garcia, Butch de Castro
This study explored how unique environmental conditions in Alaska influenced occupational health and safety for Filipino fish processing workers, many of whom migrated from warm locations (e.g., the Philippines, California, and Nevada). In-depth interviews were conducted with 26 Filipino workers in one commercial fish processing company in Dutch Harbor. Results indicated that cold weather interferes with workers' job performance, increasing their risk for injury and illness, whereas the community's isolation and rural nature causes loneliness and boredom, resulting in more high-risk behaviors...
October 11, 2016: Workplace Health & Safety
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