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https://www.readbyqxmd.com/read/28641885/remote-sensing-and-water-quality-indicators-in-the-korean-west-coast-spatio-temporal-structures-of-modis-derived-chlorophyll-a-and-total-suspended-solids
#1
Hae-Cheol Kim, Seunghyun Son, Yong Hoon Kim, Jong Seong Khim, Jungho Nam, Won Keun Chang, Jung-Ho Lee, Chang-Hee Lee, Jongseong Ryu
The Yellow Sea is a shallow marginal sea with a large tidal range. In this study, ten areas located along the western coast of the Korean Peninsula are investigated with respect to remotely sensed water quality indicators derived from NASA MODIS aboard of the satellite Aqua. We found that there was a strong seasonal trend with spatial heterogeneity. In specific, a strong six-month phase-lag was found between chlorophyll-a and total suspended solid owing to their inversed seasonality, which could be explained by different dynamics and environmental settings...
June 19, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28641680/ophthalmological-evaluation-of-integrated-resistance-and-aerobic-training-during-70-day-bed-rest
#2
Giovanni Taibbi, Ronita L Cromwell, Susana B Zanello, Patrice O Yarbough, Robert J Ploutz-Snyder, Bernard F Godley, Gianmarco Vizzeri
INTRODUCTION: We evaluated ophthalmic changes in healthy individuals who underwent integrated resistance and aerobic training (iRAT) during 70-d 6° head-down tilt (HDT) bed rest (BR). METHODS: Participants were selected using NASA standard screening procedures. Standardized NASA BR conditions were implemented. Subjects were randomly assigned to the iRAT protocol or no exercise during HDTBR. Weekly ophthalmic examinations were performed in the sitting (pre/post-BR only) and HDT (BR only) positions...
July 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28637602/perceived-task-complexity-of-trunk-stability-exercises
#3
Megan McPhee, Kylie J Tucker, Alan Wan, David A MacDonald
BACKGROUND: Perceived task complexity can impact participation in an exercise programme and the level of skill acquisition resulting from participation. Although trunk stability exercises are commonly included in the management of people with low back pain, potential differences in perceived task complexity between those exercises have not been investigated previously. OBJECTIVE: To investigate the perceived task complexity following first time instruction of two common stability exercises: the abdominal brace and abdominal hollow...
February 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28627727/development-of-hgf-binding-aptamers-with-the-combination-of-g4-promoter-derived-aptamer-selection-and-in-silico-maturation
#4
Tomomi Yokoyama, Kaori Tsukakoshi, Wataru Yoshida, Taiki Saito, Kentaro Teramoto, Nasa Savory, Koichi Abe, Kazunori Ikebukuro
We describe the selection of aptamers based on bioinformatics-based approaches without Systematic Evolution of Ligands by EXponential enrichment (SELEX). SELEX is a potent method; however, it is time intensive and the PCR-amplification step, which is essential step for SELEX, leads to the loss of good aptamers. We have developed an aptamer-screening method, G4 promoter-derived aptamer selection (G4PAS), and an aptamer-improving method, in silico maturation (ISM). They are based on in silico sequence selection and computer assisted directed evolution, respectively...
June 19, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28625820/the-effect-of-economic-downturn-on-the-volume-of-surgical-procedures-a-systematic-review
#5
REVIEW
Nasa Fujihara, Meghan E Lark, Yuki Fujihara, Kevin C Chung
BACKGROUND: Economic downturn can have a wide range of effects on medicine at both individual and national levels. We aim to describe these effects in relation to surgical volume to guide future planning for physician specialization, patient expectations in the face of economic crises, or estimating healthcare expenditure. We hypothesized that because of high out-of-pocket costs, cosmetic procedure volumes would be most affected by economic decline. METHODS: A systematic review was conducted using MEDLINE, Embase, and ABI/INFORMS...
June 15, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28624991/a-new-global-and-comprehensive-model-for-icu-ventilator-performances-evaluation
#6
Nicolas S Marjanovic, Agathe De Simone, Guillaume Jegou, Erwan L'Her
BACKGROUND: This study aimed to provide a new global and comprehensive evaluation of recent ICU ventilators taking into account both technical performances and ergonomics. METHODS: Six recent ICU ventilators were evaluated. Technical performances were assessed under two FIO2 levels (100%, 50%), three respiratory mechanics combinations (Normal: compliance [C] = 70 mL cmH2O(-1)/resistance [R] = 5 cmH2O L(-1) s(-1); Restrictive: C = 30/R = 10; Obstructive: C = 120/R = 20), four exponential levels of leaks (from 0 to 12...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28601115/modeling-change-in-project-duration-and-completion-scheduling-dynamics-of-nasa-s-exploration-flight-test-1-eft-1-activities
#7
Travis J Wiltshire, Jonathan E Butner, Zachary Pirtle
In complex work domains and organizations, understanding schedule-ing dynamics can ensure objectives are reached and delays are mitigated. In the current paper, we examine the scheduling dynamics for NASA's Exploration Flight Test 1 (EFT-1) activities. For this examination, we specifically modeled simultaneous change in percent complete and estimated duration for a given project as they were included in monthly reports over time. In short, we utilized latent change score mixture modeling to extract the attractor dynamics within the scheduling data...
July 2017: Nonlinear Dynamics, Psychology, and Life Sciences
https://www.readbyqxmd.com/read/28597476/safe-fluoroquinolones-prophylaxis-in-blood-cancer-patients-with-chemotherapy-induced-neutropenia-and-glucose-6-phosphate-dehydrogenase-deficiency
#8
M Sanna, G Caocci, F Orrù, A Ledda, A Vacca, E Piras, C Fozza, P Deias, G Tidore, F Dore, G La Nasa
WHAT IS KNOWN AND OBJECTIVE: Bacterial infections are the leading causes of morbidity and mortality in haematologic patients with chemotherapy-induced neutropenia. The only strategy shown to be effective in reducing febrile neutropenia incidence is fluoroquinolone prophylaxis, but the safety of this class of drugs in patients with glucose-6-phosphate dehydrogenase deficiency (G6PD-), the most common human enzyme defect, is still controversial because of the claimed association with acute haemolytic anaemia...
June 8, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28593984/nasa-s-dark-energy-probe-faces-cost-crisis
#9
Alexandra Witze
No abstract text is available yet for this article.
June 6, 2017: Nature
https://www.readbyqxmd.com/read/28579070/improving-teamwork-evaluating-workload-of-surgical-team-during-robot-assisted-surgery
#10
Lora A Cavuoto, Ahmed A Hussein, Vivek Vasan, Youssef Ahmed, Ayesha Durrani, Saira Khan, Adam Cole, Derek Wang, Justen Kozlowski, Basim Ahmad, Khurshid A Guru
OBJECTIVE: To investigate the cognitive and physical workload experienced by each operating room team member for different types of urological procedures. METHODS: Surgeons, anesthesiologists, surgical fellows, bedside assistants, circulating nurses and scrub nurses completed the NASA Task Load Index (NASA-TLX) questionnaire for various urological RAS procedures. A total of 338 questionnaires from 55 unique individuals were collected. Workload differences by role, type of procedure, and surgery duration were analyzed using analysis of variance (ANOVA) for each of the six domains of NASA-TLX...
June 1, 2017: Urology
https://www.readbyqxmd.com/read/28572336/redox-stratification-of-an-ancient-lake-in-gale-crater-mars
#11
J A Hurowitz, J P Grotzinger, W W Fischer, S M McLennan, R E Milliken, N Stein, A R Vasavada, D F Blake, E Dehouck, J L Eigenbrode, A G Fairén, J Frydenvang, R Gellert, J A Grant, S Gupta, K E Herkenhoff, D W Ming, E B Rampe, M E Schmidt, K L Siebach, K Stack-Morgan, D Y Sumner, R C Wiens
In 2012, NASA's Curiosity rover landed on Mars to assess its potential as a habitat for past life and investigate the paleoclimate record preserved by sedimentary rocks inside the ~150-kilometer-diameter Gale impact crater. Geological reconstructions from Curiosity rover data have revealed an ancient, habitable lake environment fed by rivers draining into the crater. We synthesize geochemical and mineralogical data from lake-bed mudstones collected during the first 1300 martian solar days of rover operations in Gale...
June 2, 2017: Science
https://www.readbyqxmd.com/read/28571871/case-study-of-dust-event-sources-from-the-gobi-and-taklamakan-deserts-an-investigation-of-the-horizontal-evolution-and-topographical-effect-using-numerical-modeling-and-remote-sensing
#12
Jin Fan, Xiaoying Yue, Qinghua Sun, Shigong Wang
A severe dust event occurred from April 23 to April 27, 2014, in East Asia. A state-of-the-art online atmospheric chemistry model, WRF/Chem, was combined with a dust model, GOCART, to better understand the entire process of this event. The natural color images and aerosol optical depth (AOD) over the dust source region are derived from datasets of moderate resolution imaging spectroradiometer (MODIS) loaded on a NASA Aqua satellite to trace the dust variation and to verify the model results. Several meteorological conditions, such as pressure, temperature, wind vectors and relative humidity, are used to analyze meteorological dynamic...
June 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28559227/human-centered-design-study-enhancing-the-usability-of-a-mobile-phone-app-in-an-integrated-falls-risk-detection-system-for-use-by-older-adult-users
#13
Richard Harte, Leo R Quinlan, Liam Glynn, Alejandro Rodríguez-Molinero, Paul Ma Baker, Thomas Scharf, Gearóid ÓLaighin
BACKGROUND: Design processes such as human-centered design (HCD), which involve the end user throughout the product development and testing process, can be crucial in ensuring that the product meets the needs and capabilities of the user, particularly in terms of safety and user experience. The structured and iterative nature of HCD can often conflict with the necessary rapid product development life-cycles associated with the competitive connected health industry. OBJECTIVE: The aim of this study was to apply a structured HCD methodology to the development of a smartphone app that was to be used within a connected health fall risk detection system...
May 30, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28554509/low-and-high-dose-rate-heavy-ion-radiation-induced-intestinal-and-colonic-tumorigenesis-in-apc-1638n-mice
#14
Shubhankar Suman, Santosh Kumar, Bo-Hyun Moon, Albert J Fornace, Kamal Datta
Ionizing radiation (IR) is a recognized risk factor for colorectal cancer (CRC) and astronauts undertaking long duration space missions are expected to receive IR doses in excess of permissible limits with implications for colorectal carcinogenesis. Exposure to IR in outer space occurs at low doses and dose rates, and energetic heavy ions due to their high linear energy transfer (high-LET) characteristics remain a major concern for CRC risk in astronauts. Previously, we have demonstrated that intestinal tumorigenesis in a mouse model (APC(1638N/+)) of human colorectal cancer was significantly higher after exposure to high dose rate energetic heavy ions relative to low-LET γ radiation...
May 2017: Life Sciences in Space Research
https://www.readbyqxmd.com/read/28554504/predictions-of-space-radiation-fatality-risk-for-exploration-missions
#15
Francis A Cucinotta, Khiet To, Eliedonna Cacao
In this paper we describe revisions to the NASA Space Cancer Risk (NSCR) model focusing on updates to probability distribution functions (PDF) representing the uncertainties in the radiation quality factor (QF) model parameters and the dose and dose-rate reduction effectiveness factor (DDREF). We integrate recent heavy ion data on liver, colorectal, intestinal, lung, and Harderian gland tumors with other data from fission neutron experiments into the model analysis. In an earlier work we introduced distinct QFs for leukemia and solid cancer risk predictions, and here we consider liver cancer risks separately because of the higher RBE's reported in mouse experiments compared to other tumors types, and distinct risk factors for liver cancer for astronauts compared to the U...
May 2017: Life Sciences in Space Research
https://www.readbyqxmd.com/read/28542224/is-spaceflight-induced-immune-dysfunction-linked-to-systemic-changes-in-metabolism
#16
Michael J Pecaut, Xiao Wen Mao, Denise L Bellinger, Karen R Jonscher, Louis S Stodieck, Virginia L Ferguson, Ted A Bateman, Robert P Mohney, Daila S Gridley
The Space Shuttle Atlantis launched on its final mission (STS-135) on July 8, 2011. After just under 13 days, the shuttle landed safely at Kennedy Space Center (KSC) for the last time. Female C57BL/6J mice flew as part of the Commercial Biomedical Testing Module-3 (CBTM-3) payload. Ground controls were maintained at the KSC facility. Subsets of these mice were made available to investigators as part of NASA's Bio-specimen Sharing Program (BSP). Our group characterized cell phenotype distributions and phagocytic function in the spleen, catecholamine and corticosterone levels in the adrenal glands, and transcriptomics/metabolomics in the liver...
2017: PloS One
https://www.readbyqxmd.com/read/28512561/bone-marrow-homing-and-engraftment-defects-of-human-hematopoietic-stem-and-progenitor-cells
#17
REVIEW
Giovanni Caocci, Marianna Greco, Giorgio La Nasa
Homing of hematopoietic stem cells (HSC) to their microenvironment niches in the bone marrow is a complex process with a critical role in repopulation of the bone marrow after transplantation. This active process allows for migration of HSC from peripheral blood and their successful anchoring in bone marrow before proliferation. The process of engraftment starts with the onset of proliferation and must, therefore, be functionally dissociated from the former process. In this overview, we analyze the characteristics of stem cells (SCs) with particular emphasis on their plasticity and ability to find their way home to the bone marrow...
2017: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/28473544/nasa-pushes-for-diversity-in-planetary-science
#18
Paul Voosen
No abstract text is available yet for this article.
May 5, 2017: Science
https://www.readbyqxmd.com/read/28467513/relationship-between-workload-and-mind-wandering-in-simulated-driving
#19
Yuyu Zhang, Takatsune Kumada
Mental workload and mind-wandering are highly related to driving safety. This study investigated the relationship between mental workload and mind-wandering while driving. Participants (N = 40) were asked to perform a car following task in driving simulator, and report whether they had experienced mind-wandering upon hearing a tone. After driving, participants reported their workload using the NASA-Task Load Index (TLX). Results revealed an interaction between workload and mind-wandering in two different perspectives...
2017: PloS One
https://www.readbyqxmd.com/read/28462896/improving-radiation-oncology-providers-workload-and-performance-can-simulation-based-training-help
#20
Lukasz M Mazur, Prithima R Mosaly, Gregg Tracton, Marjorie P Stiegler, Robert D Adams, Bhishamjit S Chera, Lawrence B Marks
PURPOSE: To help with ongoing safety challenges in radiation therapy (RT), the objective of this research was to develop and assess the impact of a simulation-based training intervention on radiation oncology providers' workload and performance during treatment planning and quality assurance (QA) tasks. METHODS AND MATERIALS: Eighteen radiation oncology professionals completed routine treatment planning and QA tasks on 2 clinical scenarios in a simulation laboratory as part of a prospective institutional review board-approved study...
February 17, 2017: Practical Radiation Oncology
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