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https://www.readbyqxmd.com/read/28324951/mentor-s-brain-functional-connectivity-network-during-robotic-assisted-surgery-mentorship
#1
Somayeh B Shafiei, Scott T Doyle, Khurshid A Guru
In many complicated cognitive-motor tasks mentoring is inevitable during the learning process. Although mentors are expert in doing the task, trainee's operation might be new for a mentor. This makes mentoring a very difficult task which demands not only the knowledge and experience of a mentor, but also his/her ability to follow trainee's movements and patiently advise him/her during the operation. We hypothesize that information binding throughout the mentor's brain areas, contributed to the task, changes as the expertise level of the trainee improves from novice to intermediate and expert...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323456/stratosphere-conditions-inactivate-bacterial-endospores-from-a-mars-spacecraft-assembly-facility
#2
Christina L Khodadad, Gregory M Wong, Leandro M James, Prital J Thakrar, Michael A Lane, John A Catechis, David J Smith
Every spacecraft sent to Mars is allowed to land viable microbial bioburden, including hardy endospore-forming bacteria resistant to environmental extremes. Earth's stratosphere is severely cold, dry, irradiated, and oligotrophic; it can be used as a stand-in location for predicting how stowaway microbes might respond to the martian surface. We launched E-MIST, a high-altitude NASA balloon payload on 10 October 2015 carrying known quantities of viable Bacillus pumilus SAFR-032 (4.07 × 10(7) spores per sample), a radiation-tolerant strain collected from a spacecraft assembly facility...
March 21, 2017: Astrobiology
https://www.readbyqxmd.com/read/28323114/physician-activity-during-outpatient-visits-and-subjective-workload
#3
Alan Calvitti, Harry Hochheiser, Shazia Ashfaq, Kristin Bell, Yunan Chen, Robert El Kareh, Mark T Gabuzda, Lin Liu, Sara Mortensen, Braj Pandey, Steven Rick, Richard L Street, Nadir Weibel, Charlene Weir, Zia Agha
We describe methods for capturing and analyzing EHR use and clinical workflow of physicians during outpatient encounters and relating activity to physicians' self-reported workload. We collected temporally-resolved activity data including audio, video, EHR activity, and eye-gaze along with post-visit assessments of workload. These data are then analyzed through a combination of manual content analysis and computational techniques to temporally align streams, providing a range of process measures of EHR usage, clinical workflow, and physician-patient communication...
March 17, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28302804/earth-science-a-no-brainer-for-nasa-s-science-chief
#4
Paul Voosen
No abstract text is available yet for this article.
March 17, 2017: Science
https://www.readbyqxmd.com/read/28300096/biofuel-blending-reduces-particle-emissions-from-aircraft-engines-at-cruise-conditions
#5
Richard H Moore, Kenneth L Thornhill, Bernadett Weinzierl, Daniel Sauer, Eugenio D'Ascoli, Jin Kim, Michael Lichtenstern, Monika Scheibe, Brian Beaton, Andreas J Beyersdorf, John Barrick, Dan Bulzan, Chelsea A Corr, Ewan Crosbie, Tina Jurkat, Robert Martin, Dean Riddick, Michael Shook, Gregory Slover, Christiane Voigt, Robert White, Edward Winstead, Richard Yasky, Luke D Ziemba, Anthony Brown, Hans Schlager, Bruce E Anderson
Aviation-related aerosol emissions contribute to the formation of contrail cirrus clouds that can alter upper tropospheric radiation and water budgets, and therefore climate. The magnitude of air-traffic-related aerosol-cloud interactions and the ways in which these interactions might change in the future remain uncertain. Modelling studies of the present and future effects of aviation on climate require detailed information about the number of aerosol particles emitted per kilogram of fuel burned and the microphysical properties of those aerosols that are relevant for cloud formation...
March 15, 2017: Nature
https://www.readbyqxmd.com/read/28296840/nasa-fights-flight-delays
#6
Jeremy Hsu
No abstract text is available yet for this article.
March 14, 2017: Scientific American
https://www.readbyqxmd.com/read/28296272/ergonomic-analysis-of-the-surgical-position-in-functional-endoscopic-sinus-surgery
#7
Vijay R Ramakrishnan, Benjamin M Milam
BACKGROUND: Ergonomics is the methodologic study of people's efficiency in their work environment and is based on anatomy, physiology, psychology, and engineering. Although highly studied in other work environments, little attention has been paid to surgeons until the landmark survey by Park et al in 2010. Many unique aspects of endoscopic surgery amplify task-related physical discomfort, and, because of these issues, we aimed to study the physical fatigue effects of functional endoscopic sinus surgery (FESS) performed in the standing and sitting positions...
March 15, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28291488/patient-litter-system-response-in-a-full-scale-ch-46-crash-test
#8
Charles A Weisenbach, Tyler Rooks, Troy Bowman, Vince Fralish, B Joseph McEntire
U.S. Military aeromedical patient litter systems are currently required to meet minimal static strength performance requirements at the component level. Operationally, these components must function as a system and are subjected to the dynamics of turbulent flight and potentially crash events. The first of two full-scale CH-46 crash tests was conducted at NASA's Langley Research Center and included an experiment to assess patient and litter system response during a severe but survivable crash event. A three-tiered strap and pole litter system was mounted into the airframe and occupied by three anthropomorphic test devices (ATDs)...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28282284/increasing-the-use-of-earth-science-data-and-models-in-air-quality-management
#9
Jana B Milford, Daniel Knight
In 2010, the U.S. National Aeronautics and Space Administration (NASA) initiated the Air Quality Applied Science Team (AQAST) as a 5-year, $17.5-million award with 19 principal investigators. AQAST aims to increase the use of Earth science products in air quality-related research and to help meet air quality managers' information needs. We conducted a Web-based survey and a limited number of follow-up interviews to investigate federal, state, tribal, and local air quality managers' perspectives on usefulness of Earth science data and models, and on the impact AQAST has had...
April 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28281125/the-impact-of-crosstalk-on-three-dimensional-laparoscopic-performance-and-workload
#10
Shinichiro Sakata, Philip M Grove, Marcus O Watson, Andrew R L Stevenson
This is the first study to explore the effects of crosstalk from 3D laparoscopic displays on technical performance and workload. We studied crosstalk at magnitudes that may have been tolerated during laparoscopic surgery. Participants were 36 voluntary doctors. To minimize floor effects, participants completed their surgery rotations, and a laparoscopic suturing course for surgical trainees. We used a counterbalanced, within-subjects design in which participants were randomly assigned to complete laparoscopic tasks in one of six unique testing sequences...
March 9, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28275238/a-decade-of-global-volcanic-so2-emissions-measured-from-space
#11
S A Carn, V E Fioletov, C A McLinden, C Li, N A Krotkov
The global flux of sulfur dioxide (SO2) emitted by passive volcanic degassing is a key parameter that constrains the fluxes of other volcanic gases (including carbon dioxide, CO2) and toxic trace metals (e.g., mercury). It is also a required input for atmospheric chemistry and climate models, since it impacts the tropospheric burden of sulfate aerosol, a major climate-forcing species. Despite its significance, an inventory of passive volcanic degassing is very difficult to produce, due largely to the patchy spatial and temporal coverage of ground-based SO2 measurements...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28270174/aerobic-capacity-and-future-cardiovascular-risk-in-indian-community-from-a-low-income-area-in-cauca-colombia
#12
Robinson Ramírez-Vélez, Jorge Enrique Correa-Bautista, Jeison Alexander Ramos-Sepúlveda, Carlos Andrés Piñeros-Álvarez, Lorena Isabel Giraldo, Mikel Izquierdo, Antonio García-Hermoso, Fernando Rodríguez-Rodríguez, Carlos Cristi-Montero
BACKGROUND: Several studies indicates that children's aerobic capacity levels are predictors of the future risk of non-communicable diseases. Therefore, the aim of this study was to establish the proportion of subjects whose aerobic capacity is indicative of future cardiovascular risk in Indian-Nasa community from a low-income area in Cauca, Colombia. METHODS: We performed a cross-sectional analysis of morphological component (height, weight, body mass index (BMI), waist circumference, triceps skinfold, subscapular skinfold, and body fat percent [BF%]), and the cardiorespiratory component (course-navette 20 m, shuttle run test and estimation of maximal oxygen consumption by indirect VO2max) from 576 participants (319 boys and 257 girls) aged 10 to 17...
March 7, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28251305/evolution-of-bidirectional-sex-change-and-gonochorism-in-fishes-of-the-gobiid-genera-trimma-priolepis-and-trimmatom
#13
Tomoki Sunobe, Tetsuya Sado, Kiyoshi Hagiwara, Hisaya Manabe, Toshiyuki Suzuki, Yasuhisa Kobayashi, Makoto Sakurai, Shin-Ichi Dewa, Midori Matsuoka, Akihiko Shinomiya, Kazuya Fukuda, Masaki Miya
Size-advantage and low-density models have been used to explain how mating systems favor hermaphroditism or gonochorism. However, these models do not indicate historical transitions in sexuality. Here, we investigate the evolution of bidirectional sex change and gonochorism by phylogenetic analysis using the mitochondrial gene of the gobiids Trimma (31 species), Priolepis (eight species), and Trimmatom (two species). Trimma and Priolepis formed a clade within the sister group Trimmatom. Gonadal histology and rearing experiments revealed that Trimma marinae, Trimma nasa, and Trimmatom spp...
April 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28231147/applying-least-absolute-shrinkage-selection-operator-and-akaike-information-criterion-analysis-to-find-the-best-multiple-linear-regression-models-between-climate-indices-and-components-of-cow-s-milk
#14
Mohammad Reza Marami Milani, Andreas Hense, Elham Rahmani, Angelika Ploeger
This study focuses on multiple linear regression models relating six climate indices (temperature humidity THI, environmental stress ESI, equivalent temperature index ETI, heat load HLI, modified HLI (HLI new), and respiratory rate predictor RRP) with three main components of cow's milk (yield, fat, and protein) for cows in Iran. The least absolute shrinkage selection operator (LASSO) and the Akaike information criterion (AIC) techniques are applied to select the best model for milk predictands with the smallest number of climate predictors...
July 23, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28229238/preclinical-endoscopic-training-using-a-part-task-simulator-learning-curve-assessment-and-determination-of-threshold-score-for-advancement-to-clinical-endoscopy
#15
Pichamol Jirapinyo, Wasif M Abidi, Hiroyuki Aihara, Theodore Zaki, Cynthia Tsay, Avlin B Imaeda, Christopher C Thompson
BACKGROUND: Preclinical simulator training has the potential to decrease endoscopic procedure time and patient discomfort. This study aims to characterize the learning curve of endoscopic novices in a part-task simulator and propose a threshold score for advancement to initial clinical cases. METHODS: Twenty novices with no prior endoscopic experience underwent repeated endoscopic simulator sessions using the part-task simulator. Simulator scores were collected; their inverse was averaged and fit to an exponential curve...
February 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28226841/mentor-s-brain-functional-connectivity-network-during-robotic-assisted-surgery-mentorship
#16
Somayeh B Shafiei, Scott T Doyle, Khurshid A Guru, Somayeh B Shafiei, Scott T Doyle, Khurshid A Guru, Somayeh B Shafiei, Khurshid A Guru, Scott T Doyle
In many complicated cognitive-motor tasks mentoring is inevitable during the learning process. Although mentors are expert in doing the task, trainee's operation might be new for a mentor. This makes mentoring a very difficult task which demands not only the knowledge and experience of a mentor, but also his/her ability to follow trainee's movements and patiently advise him/her during the operation. We hypothesize that information binding throughout the mentor's brain areas, contributed to the task, changes as the expertise level of the trainee improves from novice to intermediate and expert...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28208641/temporal-trends-in-satellite-derived-erythemal-uvb-and-implications-for-ambient-sun-exposure-assessment
#17
Marvin Langston, Leslie Dennis, Charles Lynch, Denise Roe, Heidi Brown
Ultraviolet radiation (UVR) has been associated with various health outcomes, including skin cancers, vitamin D insufficiency, and multiple sclerosis. Measurement of UVR has been difficult, traditionally relying on subject recall. We investigated trends in satellite-derived UVB from 1978 to 2014 within the continental United States (US) to inform UVR exposure assessment and determine the potential magnitude of misclassification bias created by ignoring these trends. Monthly UVB data remotely sensed from various NASA satellites were used to investigate changes over time in the United States using linear regression with a harmonic function...
February 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28202980/three-sites-where-nasa-might-retrieve-its-first-mars-rock
#18
Alexandra Witze
No abstract text is available yet for this article.
February 11, 2017: Nature
https://www.readbyqxmd.com/read/28199143/randomized-trial-comparing-r-chop-versus-high-dose-sequential-chemotherapy-in-high-risk-patients-with-diffuse-large-b-cell-lymphomas
#19
Sergio Cortelazzo, Corrado Tarella, Alessandro Massimo Gianni, Marco Ladetto, Anna Maria Barbui, Andrea Rossi, Giuseppe Gritti, Paolo Corradini, Massimo Di Nicola, Caterina Patti, Antonino Mulé, Manuela Zanni, Valerio Zoli, Atto Billio, Andrea Piccin, Giovanni Negri, Claudia Castellino, Francesco Di Raimondo, Andrés J M Ferreri, Fabio Benedetti, Giorgio La Nasa, Guido Gini, Livio Trentin, Maurizio Frezzato, Leonardo Flenghi, Simona Falorio, Marco Chilosi, Riccardo Bruna, Valentina Tabanelli, Stefano Pileri, Arianna Masciulli, Federica Delaini, Cristina Boschini, Alessandro Rambaldi
Purpose The benefit of high-dose chemotherapy with autologous stem-cell transplantation (ASCT) as first-line treatment in patients with diffuse large B-cell lymphomas is still a matter of debate. To address this point, we designed a randomized phase III trial to compare rituximab plus cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP)-14 (eight cycles) with rituximab plus high-dose sequential chemotherapy (R-HDS) with ASCT. Patients and Methods From June 2005 to June 2011, 246 high-risk patients with a high-intermediate (56%) or high (44%) International Prognostic Index score were randomly assigned to the R-CHOP or R-HDS arm, and 235 were analyzed by intent to treat...
November 20, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28195575/a-land-data-assimilation-system-for-sub-saharan-africa-food-and-water-security-applications
#20
Amy McNally, Kristi Arsenault, Sujay Kumar, Shraddhanand Shukla, Pete Peterson, Shugong Wang, Chris Funk, Christa D Peters-Lidard, James P Verdin
Seasonal agricultural drought monitoring systems, which rely on satellite remote sensing and land surface models (LSMs), are important for disaster risk reduction and famine early warning. These systems require the best available weather inputs, as well as a long-term historical record to contextualize current observations. This article introduces the Famine Early Warning Systems Network (FEWS NET) Land Data Assimilation System (FLDAS), a custom instance of the NASA Land Information System (LIS) framework. The FLDAS is routinely used to produce multi-model and multi-forcing estimates of hydro-climate states and fluxes over semi-arid, food insecure regions of Africa...
February 14, 2017: Scientific Data
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