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https://www.readbyqxmd.com/read/28928590/arteriovenous-malformation-of-face-a-challenge-to-anesthesiologists
#1
S Neeta, Rammoorthi Rao, Madhusudan Upadya, P Keerthi
Arteriovenous (AV) malformations of the face are rare presentations. Endovascular coiling is one of the treatment modalities. We report a case of a 65-year-old lady who presented with a large AV malformation of the face located around the nasal bride and alae nasae posted for coiling under general anesthesia. Anesthetic management of the case was a challenge as it was an anticipated difficult airway situation. Furthermore, any pressure on the swelling can lead to rupture and hemorrhage as the skin above swelling was unhealthy...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28925730/impact-of-frequent-interruption-on-nurses-patient-controlled-analgesia-programming-performance
#2
Kristi R Campoe, Karen K Giuliano
OBJECTIVE: The purpose was to add to the body of knowledge regarding the impact of interruption on acute care nurses' cognitive workload, total task completion times, nurse frustration, and medication administration error while programming a patient-controlled analgesia (PCA) pump. BACKGROUND: Data support that the severity of medication administration error increases with the number of interruptions, which is especially critical during the administration of high-risk medications...
September 1, 2017: Human Factors
https://www.readbyqxmd.com/read/28923137/carbon-dioxide-physiological-training-at-nasa
#3
Jennifer Law, Millennia Young, David Alexander, Sara S Mason, Mary L Wear, Claudia M Méndez, David Stanley, Valerie Meyers Ryder, Mary Van Baalen
INTRODUCTION: Astronauts undergo CO2 exposure training to recognize their symptoms that can arise acutely both on the ground and in spaceflight. This article describes acute CO2 exposure training at NASA and examines the symptoms reported by astronauts during training. METHODS: In a controlled training environment, astronauts are exposed to up to 8% CO2 (60 mmHg) by a rebreathing apparatus. Symptoms are reported using a standard form. RESULTS: Symptom documentation forms between April 1994 and February 2012 were obtained for 130 astronauts...
October 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28915461/forecasting-wheat-and-barley-crop-production-in-arid-and-semi-arid-regions-using-remotely-sensed-primary-productivity-and-crop-phenology-a-case-study-in-iraq
#4
Sarchil Hama Qader, Jadunandan Dash, Peter M Atkinson
Crop production and yield estimation using remotely sensed data have been studied widely, but such information is generally scarce in arid and semi-arid regions. In these regions, inter-annual variation in climatic factors (such as rainfall) combined with anthropogenic factors (such as civil war) pose major risks to food security. Thus, an operational crop production estimation and forecasting system is required to help decision-makers to make early estimates of potential food availability. Data from NASA's MODIS with official crop statistics were combined to develop an empirical regression-based model to forecast winter wheat and barley production in Iraq...
September 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28894556/how-we-manage-invasive-fungal-disease-in-acute-myeloid-leukemia-patients-with-glucose-6-dehydrogenase-deficiency
#5
Marco Sanna, Giovanni Caocci, Giorgio La Nasa
Glucose-6-phosphate dehydrogenase (G6PD) represents a common human enzyme defect, particularly prevalent in the Mediterranean, African e Asian area, where malaria was or is still endemic. Recently, we identified G6PD deficiency as a risk factor for developing invasive fungal disease (IFD) and particularly Candida Sepsis in patients undergoing intensive chemotherapy for acute myeloid leukemia (AML), suggesting that there is an urgent need for strategies to properly manage this kind of patients at high risk of invasive mycoses...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28890459/james-e-webb-technocracy-and-the-new-deal-roots-of-space-age-management
#6
Allan A Needell
abstract James E. Webb, NASA's Administrator during the hectic years preparing to send American astronauts to the Moon, has come to represent the pinnacle of postwar American optimism and support for large-scale, technically complex national undertakings. Success in 1969 lent credence to Webb's faith in "space age management." By the 1980s such "technocratic optimism" had precipitously declined. Since 1985, with the publication of Walter A. McDougall's Pulitzer Prize winning. . . The Heavens and the Earth, the rise and decline of such optimism has often been framed in the context of Cold War ideology and competition...
2017: Technology and Culture
https://www.readbyqxmd.com/read/28887946/comparing-hzetrn-shield-fluka-and-geant-transport-codes
#7
John W Norbury, Tony C Slaba, Nikolai Sobolevsky, Brandon Reddell
For the first time, the American (NASA) and Russian (ROSCOSMOS) space radiation transport codes, HZETRN and SHIELD respectively, are directly compared to each other. Calculations are presented for Galactic Cosmic Ray (GCR) minimum Hydrogen, Oxygen and Iron projectiles incident on a uniform Aluminum cylinder of varying thickness. Comparisons are made for the flux spectra of neutrons, light ions (Z≤ 2), heavy ions (Z> 2) and pions emitted from the back of the Aluminum cylinder. In order to provide more benchmark comparisons, some calculations with the GEANT and FLUKA transport codes are also shown...
August 2017: Life Sciences in Space Research
https://www.readbyqxmd.com/read/28883465/the-oceanic-biological-pump-rapid-carbon-transfer-to-depth-at-continental-margins-during-winter
#8
Laurenz Thomsen, Jacopo Aguzzi, Corrado Costa, Fabio De Leo, Andrea Ogston, Autun Purser
The oceanic biological pump is responsible for the important transfer of CO2-C as POC "Particulate Organic Carbon" to the deep sea. It plays a decisive role in the Earth's carbon cycle and significant effort is spent to quantify its strength. In this study we used synchronized daily time-series data of surface chlorophyll-a concentrations from the NASA's MODIS satellite in combination with hourly to daily observations from sea surface buoys and from an Internet Operated Vehicle (IOV) on the seafloor within Barkley Canyon (Northeast Pacific) to investigate the importance of winter processes in the export of fresh phytodetritus...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28883054/oklahoma-politician-picked-to-lead-nasa-back-to-the-moon
#9
Paul Voosen
No abstract text is available yet for this article.
September 8, 2017: Science
https://www.readbyqxmd.com/read/28877184/microgravity-validation-of-a-novel-system-for-rna-isolation-and-multiplex-quantitative-real-time-pcr-analysis-of-gene-expression-on-the-international-space-station
#10
Macarena Parra, Jimmy Jung, Travis D Boone, Luan Tran, Elizabeth A Blaber, Mark Brown, Matthew Chin, Tori Chinn, Jacob Cohen, Robert Doebler, Dzung Hoang, Elizabeth Hyde, Matthew Lera, Louie T Luzod, Mark Mallinson, Oana Marcu, Youssef Mohamedaly, Antonio J Ricco, Kathleen Rubins, Gregory D Sgarlato, Rafael O Talavera, Peter Tong, Eddie Uribe, Jeffrey Williams, Diana Wu, Rukhsana Yousuf, Charles S Richey, Julie Schonfeld, Eduardo A C Almeida
The International Space Station (ISS) National Laboratory is dedicated to studying the effects of space on life and physical systems, and to developing new science and technologies for space exploration. A key aspect of achieving these goals is to operate the ISS National Lab more like an Earth-based laboratory, conducting complex end-to-end experimentation, not limited to simple microgravity exposure. Towards that end NASA developed a novel suite of molecular biology laboratory tools, reagents, and methods, named WetLab-2, uniquely designed to operate in microgravity, and to process biological samples for real-time gene expression analysis on-orbit...
2017: PloS One
https://www.readbyqxmd.com/read/28875158/thirty-days-of-spaceflight-does-not-alter-murine-calvariae-structure-despite-increased-sost-expression
#11
Timothy R Macaulay, Jamila H Siamwala, Alan R Hargens, Brandon R Macias
Previously our laboratory documented increases in calvaria bone volume and thickness in mice exposed to 15 days of spaceflight aboard the NASA Shuttle mission STS-131. However, the tissues were not processed for gene expression studies to determine what bone formation pathways might contribute to these structural adaptations. Therefore, this study was designed to investigate both the structural and molecular changes in mice calvariae after a longer duration of spaceflight. The primary purpose was to determine the calvaria bone volume and thickness of mice exposed to 30 days of spaceflight using micro-computed tomography for comparison with our previous findings...
December 2017: Bone Reports
https://www.readbyqxmd.com/read/28867834/estimation-of-leaf-area-index-and-its-sunlit-portion-from-dscovr-epic-data-theoretical-basis
#12
Bin Yang, Yuri Knyazikhin, Matti Mõttus, Miina Rautiainen, Pauline Stenberg, Lei Yan, Chi Chen, Kai Yan, Sungho Choi, Taejin Park, Ranga B Myneni
This paper presents the theoretical basis of the algorithm designed for the generation of leaf area index and diurnal course of its sunlit portion from NASA's Earth Polychromatic Imaging Camera (EPIC) onboard NOAA's Deep Space Climate Observatory (DSCOVR). The Look-up-Table (LUT) approach implemented in the MODIS operational LAI/FPAR algorithm is adopted. The LUT, which is the heart of the approach, has been significantly modified. First, its parameterization incorporates the canopy hot spot phenomenon and recent advances in the theory of canopy spectral invariants...
September 1, 2017: Remote Sensing of Environment
https://www.readbyqxmd.com/read/28844156/performance-of-single-use-flexor%C3%A2-vue%C3%A2-vs-reusable-boavision%C3%A2-ureteroscope-for-visualization-of-calyces-and-stone-extraction-in-an-artificial-kidney-model
#13
Daniel Schlager, Simon Hein, Moaaz Abdulghani Obaid, Konrad Wilhelm, Arkadiusz Miernik, Martin Schoenthaler
PURPOSE: To evaluate and compare Flexor®Vue™, an semi-disposable endoscopic deflection system with disposable ureteral sheath and reusable visualization source, and a nondisposable fiber optic ureteroscope in a standard in vitro setting. MATERIAL & METHODS: Flexor®Vue™ and a reusable fiber optic flexible ureteroscope were each tested in an artificial kidney model. The experimental setup included the visualization of colored pearls and the extraction of calculi with 2 different extraction devices (NCircle®, NGage®)...
August 26, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28841578/psychiatric-presentations-during-all-4-phases-of-the-lunar-cycle
#14
Omar J Francis, Bryan J Kopke, Anthony J Affatato, Robert W Jarski
Context • Anecdotal evidence concerning a relationship between human illnesses and a full moon is frequently claimed by as many as 81% of mental health workers. Previous scientific investigations have studied only the full-moon phase and its possible effect on psychiatric presentations. However, information is limited about all 4 phases of the lunar cycle and their effects on different types of psychiatric disorders. Objective • This study primarily intended to evaluate the number of psychiatric presentations to a hospital's emergency department across all 4 phases of the lunar cycle...
July 2017: Advances in Mind-body Medicine
https://www.readbyqxmd.com/read/28841441/hla-g-molecules-and-clinical-outcome-in-chronic-myeloid-leukemia
#15
Giovanni Caocci, Marianna Greco, Marcella Arras, Roberto Cusano, Sandro Orrù, Bruno Martino, Elisabetta Abruzzese, Sara Galimberti, Olga Mulas, Marcello Trucas, Roberto Littera, Sara Lai, Carlo Carcassi, Giorgio La Nasa
The human leukocyte antigen-G (HLA-G) gene encodes a tolerogenic protein known to promote tumor immune-escape. We investigated HLA-G polymorphisms and soluble molecules (sHLA-G) in 68 chronic myeloid leukemia (CML) patients. Patients with G*01:01:01 or G*01:01:02 allele had higher value of sHLA-G compared to G*01:01:03 (109.2±39.5 vs 39.9±8.8 units/ml; p=0.03), and showed lower event free survival (EFS) (62.3% vs 90.0%; p=0.02). The G*01:01:03 allele was associated with higher rates and earlier achievement of deep molecular response (MR)(4...
August 18, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28840853/characterization-of-seal-whisker-morphology-implications-for-whisker-inspired-flow-control-applications
#16
Aidan Rinehart, Vikram Shyam, Wei Zhang
Seals with beaded whiskers, that is the majority of true seals (Phocids), are able to trace even minute disturbance caused by prey fish in the ambient flow using only sensory input from their whiskers. The unique three-dimensional undulating morphology of seal whiskers has been associated with their capability of suppressing vortex-induced vibration and reducing drag. The exceptional hydrodynamic traits of seal whiskers are of great interest in renovating the design of aero-propulsion flow components and high-sensitivity flow sensors...
August 25, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28828144/assessment-of-radiometer-calibration-with-gps-radio-occultation-for-the-mirata-cubesat-mission
#17
Anne D Marinan, Kerri L Cahoy, Rebecca L Bishop, Susan S Lui, James R Bardeen, Tamitha Mulligan, William J Blackwell, R Vincent Leslie, Idahosa Osaretin, Michael Shields
The Microwave Radiometer Technology Acceleration (MiRaTA) is a 3U CubeSat mission sponsored by the NASA Earth Science Technology Office (ESTO). The science payload on MiRaTA consists of a tri-band microwave radiometer and Global Positioning System (GPS) radio occultation (GPSRO) sensor. The microwave radiometer takes measurements of all-weather temperature (V-band, 50-57 GHz), water vapor (G-band, 175-191 GHz), and cloud ice (G-band, 205 GHz) to provide observations used to improve weather forecasting. The Aerospace Corporation's GPSRO experiment, called the Compact TEC (Total Electron Content) and Atmospheric GPS Sensor (CTAGS), measures profiles of temperature and pressure in the upper troposphere/lower stratosphere (∼20 km) and electron density in the ionosphere (over 100 km)...
December 2016: IEEE J Sel Top Appl Earth Obs Remote Sens
https://www.readbyqxmd.com/read/28827155/effects-of-mental-workload-on-involuntary-attention-a-somatosensory-erp-study
#18
Sungchul Mun, Mincheol Whang, Sangin Park, Min-Chul Park
Previous psychophysiological assessments of mental workload have relied on the addition of visual or auditory stimuli. This study investigated the tactile ERP and EEG spectral power correlates of mental workload by relating limited-capacity involuntary attention allocation to changes in late positive potential (LPP) amplitude, alpha, and theta powers. We examined whether mental workload (high-level cognitive control) can be evaluated using somatosensory stimuli. Sixteen participants all performed three tasks of varying difficulty...
August 18, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28820660/driver-s-mental-workload-prediction-model-based-on-physiological-indices
#19
Shengyuan Yan, Cong Chi Tran, Yingying Wei, Jean Luc Habiyaremye
Developing an early warning model to predict the driver's mental workload (MWL) is critical and helpful, especially for new or less experienced drivers. The present study aims to investigate the correlation between new driver's MWL and their work performance, regarding the number of errors. Additionally, the Group method of data handling (GMDH) is used to establish the driver's MWL predictive model based on subjective rating (NASA task load index (NASA-TLX)) and six physiological indices. The results indicate that NASA-TLX and the number of errors are positively correlated, and the predictive model shows the validity of the proposed model with an R(2) value of 0...
August 18, 2017: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/28818923/astrophysics-missions-vie-for-nasa-money
#20
Daniel Clery
No abstract text is available yet for this article.
August 18, 2017: Science
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