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https://www.readbyqxmd.com/read/28545231/atmospheric-sampling-on-ascension-island-using-multirotor-uavs
#1
Colin Greatwood, Thomas S Richardson, Jim Freer, Rick M Thomas, A Rob MacKenzie, Rebecca Brownlow, David Lowry, Rebecca E Fisher, Euan G Nisbet
As part of an NERC-funded project investigating the southern methane anomaly, a team drawn from the Universities of Bristol, Birmingham and Royal Holloway flew small unmanned multirotors from Ascension Island for the purposes of atmospheric sampling. The objective of these flights was to collect air samples from below, within and above a persistent atmospheric feature, the Trade Wind Inversion, in order to characterise methane concentrations and their isotopic composition. These parameters allow the methane in the different air masses to be tied to different source locations, which can be further analysed using back trajectory atmospheric computer modelling...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28542280/analysing-human-mobility-patterns-of-hiking-activities-through-complex-network-theory
#2
Isaac Lera, Toni Pérez, Carlos Guerrero, Víctor M Eguíluz, Carlos Juiz
The exploitation of high volume of geolocalized data from social sport tracking applications of outdoor activities can be useful for natural resource planning and to understand the human mobility patterns during leisure activities. This geolocalized data represents the selection of hike activities according to subjective and objective factors such as personal goals, personal abilities, trail conditions or weather conditions. In our approach, human mobility patterns are analysed from trajectories which are generated by hikers...
2017: PloS One
https://www.readbyqxmd.com/read/28540080/misalignment-of-career-and-educational-aspirations-in-middle-school-differences-across-race-ethnicity-and-socioeconomic-status
#3
Brea L Perry, Elizabeth Martinez, Edward Morris, Tanja C Link, Carl Leukefeld
Misalignment of educational and career goals (i.e., educational aspirations expressed are inadequate for attaining one's desired occupation) is associated with lower educational attainment and a lack of college readiness, and may contribute to persistent educational and employment disparities. Drawing on data from 249 sixth graders in low-income schools, this research examines misalignment between educational and career aspirations across racial and ethnic and socioeconomic groups. Findings indicate that students in low-income schools aspire to middle and upper middle class careers, but sometimes lack an understanding of the educational degrees required to achieve their goals...
September 2016: Social Sciences
https://www.readbyqxmd.com/read/28538525/trajectory-of-postoperative-wound-pain-within-the-first-2-weeks-following-posterior-spinal-fusion-surgery-in-adolescent-idiopathic-scoliosis-patients
#4
Mun Keong Kwan, Chee Kidd Chiu, Teik Seng Chan, Kok Ian Chong, Siti Mariam Mohamad, Mohd Shahnaz Hasan, Chris Yin Wei Chan
STUDY DESIGN: A prospective cohort study. OBJECTIVE: The aim of this study was to determine and evaluate the trajectory of surgical wound pain from day 1 to day 14 after posterior spinal fusion (PSF) surgery in patients with adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Information regarding how the postoperative pain improves with time offers invaluable information not only to the patients and parents but also to assist the clinician in managing postoperative pain...
June 1, 2017: Spine
https://www.readbyqxmd.com/read/28531270/utilization-of-quantitative-susceptibility-mapping-for-direct-targeting-of-the-subthalamic-nucleus-during-deep-brain-stimulation-surgery
#5
Jonathan Rasouli, Ritesh Ramdhani, Fedor E Panov, Alexey Dimov, Yan Zhang, Catherine Cho, Yi Wang, Brian Harris Kopell
BACKGROUND: Deep brain stimulation of the subthalamic nucleus (STN) has demonstrated efficacy in improving motor disability in Parkinson's disease. The recently developed quantitative susceptibility mapping (QSM) technique, which can accurately map iron deposits in deep brain nuclei, promises precise targeting of the STN. OBJECTIVE: To demonstrate the use of QSM to target STN effectively by correlating with classical physiological-based targeting measures in a prospective study...
May 21, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28529252/consideration-of-dose-error-in-dynamic-mlc-imrt-using-mlc-speed-control-with-dose-rate-change
#6
Hideki Kojima, Makoto Takigami, Tomohiro Asano, Yasuhiro Hatanaka, Kazuhiro Aizawa, Masayori Ishikawa
In dynamic multi-leaf collimator (MLC) intensity-modulated radiotherapy (IMRT), the accuracy of delivered dose is influenced by the positional accuracy of the moving MLC. In order to assess the accuracy of the delivered dose during dynamic MLC IMRT, the delivered dose error in dynamic MLC IMRT using the MLC speed control with dose rate change was investigated. Sweeping gap sequence irradiation was performed with constant MLC leaf speed at 0.6 to 5 cm/s or changed MLC speed (4 steps). The positional accuracy of the moving MLC was evaluated from the trajectory log file...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28529123/implementing-shared-decision-making-in-denmark-first-steps-and-future-focus-areas
#7
Karina Dahl Steffensen, Vibe Hjelholt Baker, Mette Marianne Vinter
What about the political climate? Although there is no explicit description of patient involvement in Danish legislation, patient-centred care is on the political agenda in Denmark. It is integrated as one of eight new national indicators of quality in health care, as well as in the most recent national plan for cancer treatment. What about tools for patient decision support? Development of evidence-based patient decision aids (PDAs) are still at an early stage in Denmark, but recent national and private funding has helped push the field forward...
May 18, 2017: Zeitschrift Für Evidenz, Fortbildung und Qualität Im Gesundheitswesen
https://www.readbyqxmd.com/read/28528800/an-innovative-method-of-planning-and-displaying-flap-volume-in-diep-flap-breast-reconstructions
#8
S Hummelink, Arico C Verhulst, Thomas J J Maal, Yvonne L Hoogeveen, Leo J Schultze Kool, Dietmar J O Ulrich
BACKGROUND: Determining the ideal volume of the harvested flap to achieve symmetry in deep inferior epigastric artery perforator (DIEP) flap breast reconstructions is complex. With preoperative imaging techniques such as 3D stereophotogrammetry and computed tomography angiography (CTA) available nowadays, we can combine information to preoperatively plan the optimal flap volume to be harvested. In this proof-of-concept, we investigated whether projection of a virtual flap planning onto the patient's abdomen using a projection method could result in harvesting the correct flap volume...
April 23, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28525479/outcome-of-bilateral-c1-laminar-hooks-combined-with-c2-pedicle-screw-fixation-for-the-treatment-of-c1-c2-instability-a-report-of-18-cases-from-a-single-chinese-center
#9
Lifeng Lao, Guibin Zhong, Qianyi Li, Xinfeng Li, Bin Chen, Lie Qian, Zude Liu
STUDY DESIGN: A retrospective technical report. OBJECTIVE: To assess the effect of bilateral C1 laminar hooks combined with C2 pedicle screw fixation for the treatment of C1-C2 instability. SUMMARY OF BACKGROUND DATA: Various posterior atlantoaxial fixations for C1-C2 instability have been developed. However, due to anatomic anomalies of the vertebral artery, the smallness of the pedicle, trajectories of broken screws, or a lack of surgical experience, a simple atlantoaxial fixation technique with good safety and effectiveness is urgently needed...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28524752/widening-of-the-safe-trajectory-range-during-subaxial-cervical-pedicle-screw-placement-advantages-of-a-curved-pedicle-probe-and-laterally-located-starting-point-without-creating-a-funnel-shaped-hole
#10
Subum Lee, Junghan Seo, Moon Kyu Lee, Sang Ryong Jeon, Sung Woo Roh, Seung Chul Rhim, Jin Hoon Park
OBJECTIVE The small diameter of cervical pedicles and a large transverse cervical pedicle angle are challenges that have led spinal surgeons to investigate how they could achieve a wider safety trajectory and reduce the insertion angle during cervical pedicle screw (CPS) placement. In this paper, the authors detail the advantages of using a curved pedicle probe and a laterally located entry point for overcoming these challenges. METHODS From March 2012 to May 2016, the authors performed posterior cervical fusions using CPSs on 119 consecutive patients...
May 19, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28520940/age-differences-in-self-continuity-converging-evidence-and-directions-for-future-research
#11
Corinna E Löckenhoff, Joshua L Rutt
Life-span development is inherently linked to the perception of time and associated temporal construals. Such concepts are multi-faceted in nature and have important practical implications in areas such as time management, financial planning, or medical choices. A large body of research has documented age-related limitations in global time horizons, but age differences in other aspects of temporal construal are comparatively poorly understood. The present article draws attention to developmental trajectories of self-continuity, defined as perceived associations of one's present self with past and future selves...
June 1, 2017: Gerontologist
https://www.readbyqxmd.com/read/28502685/transorbital-glue-embolization-of-a-recurrent-venous-varix-using-real-time-image-guidance-in-the-neuroangiography-suite
#12
Sophia F Shakur, Denise Brunozzi, Pete Setabutr, Ahmed E Hussein, Fady T Charbel, Ali Alaraj
Orbital lesions are challenging to access due to their location amidst critical anatomical structures. Here, we demonstrate direct transorbital cannulation of an orbital venous varix using image guidance. A 36-year-old male was diagnosed to have a left orbital venous varix approximately 5 years ago at an outside institution. He subsequently underwent surgery for direct intraoperative embolization of the venous varix followed by surgical resection. The patient recently presented to us with left eye pain, proptosis, double vision, and conjunctival hemorrhage precipitated by straining or lying flat...
May 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28501879/-implant-supported-3d-printed-bridge-in-the-edentulous-maxilla
#13
F A J Gols Linthorst, L Verhamme, T Maal, A Soehardi, G J Meijer
A healthy 72-year-old man presented with retention problems concerning the dentures in his maxilla. On account of extreme resorption, placement of implants without prior bone augmentation was not an option. The proposal was to use autologous bone harvested from the iliac crest. After a healing period of 4 months, a cone beam computed tomography scan was made, following which the virtual implant planning of 6 implants was carried out. With the help of a template supported by osteosynthesis screws, which had already been inserted during the augmentation procedure, the plan was applied to the patient...
May 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28499512/the-organ-transplant-imperative
#14
REVIEW
Wil L Santivasi, Jacob J Strand, Paul S Mueller, Thomas J Beckman
More than 120,000 US patients were listed for solid organ transplants in 2016. Although data are scarce, we suspect that many of these patients will die while awaiting transplant and without engaging in goals-of-care discussions with their physicians. The challenges of addressing goals of care in patients with malignancy, end-stage renal disease, and heart failure have been studied. However, there is sparse literature on addressing goals of care throughout the dynamic process of transplant assessment and listing...
May 10, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28494619/improving-quality-of-care-for-end-stage-respiratory-disease-changes-in-attitude-changes-in-service
#15
D Robin Taylor, Scott A Murray
The illness trajectory for many patients with severe respiratory disease is characterized by steady decline. Yet most healthcare resources are poured into managing acute exacerbations that are only temporarily effective. Further, 'bad deaths' can result from inappropriate medical interventions at times of crisis. In this article, we describe a range of changes in attitudes, behaviour and service provision that together focus on improving quality of care for respiratory patients with frequent crises. These changes include prognostic conversations, developing and implementing anticipatory care plans both in hospital and in the outpatient settings, and establishing a supportive care clinic devoted to complex disease and optimizing palliative care...
January 1, 2017: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/28490836/prior-knowledge-of-target-direction-and-intended-movement-selection-improves-indirect-reaching-movement-decoding
#16
Hongbao Li, Yaoyao Hao, Shaomin Zhang, Yiwen Wang, Weidong Chen, Xiaoxiang Zheng
Objective. Previous studies have demonstrated that target direction information presented by the dorsal premotor cortex (PMd) during movement planning could be incorporated into neural decoder for achieving better decoding performance. It is still unknown whether the neural decoder combined with only target direction could work in more complex tasks where obstacles impeded direct reaching paths. Methods. In this study, spike activities were collected from the PMd of two monkeys when performing a delayed obstacle-avoidance task...
2017: Behavioural Neurology
https://www.readbyqxmd.com/read/28486934/progression-of-the-epidemiological-transition-in-a-rural-south-african-setting-findings-from-population-surveillance-in-agincourt-1993-2013
#17
Chodziwadziwa W Kabudula, Brian Houle, Mark A Collinson, Kathleen Kahn, Francesc Xavier Gómez-Olivé, Samuel J Clark, Stephen Tollman
BACKGROUND: Virtually all low- and middle-income countries are undergoing an epidemiological transition whose progression is more varied than experienced in high-income countries. Observed changes in mortality and disease patterns reveal that the transition in most low- and middle-income countries is characterized by reversals, partial changes and the simultaneous occurrence of different types of diseases of varying magnitude. Localized characterization of this shifting burden, frequently lacking, is essential to guide decentralised health and social systems on the effective targeting of limited resources...
May 10, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28484641/optimal-strategies-for-throwing-accurately
#18
M Venkadesan, L Mahadevan
The accuracy of throwing in games and sports is governed by how errors in planning and initial conditions are propagated by the dynamics of the projectile. In the simplest setting, the projectile path is typically described by a deterministic parabolic trajectory which has the potential to amplify noisy launch conditions. By analysing how parabolic trajectories propagate errors, we show how to devise optimal strategies for a throwing task demanding accuracy. Our calculations explain observed speed-accuracy trade-offs, preferred throwing style of overarm versus underarm, and strategies for games such as dart throwing, despite having left out most biological complexities...
April 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28484413/career-preparedness-and-school-achievement-of-portuguese-children-longitudinal-trend-articulations
#19
Íris M Oliveira, Maria do Céu Taveira, Erik J Porfeli
Social Cognitive Career Theory suggests that students' preparedness for the school-to-work transition is a developmental process. Middle school children explore various careers, obtain feedback about their academic progress, and develop career self-efficacy and outcome expectations. These processes advance provisional educational/occupational goals. The literature has suggested articulations between career and academic development and how both vary across demographic characteristics, but longitudinal studies linking these processes are scarce...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28482180/the-development-of-multitasking-in-children-aged-7-12years-evidence-from-cross-sectional-and-longitudinal-data
#20
Tian-Xiao Yang, Weizhen Xie, Chu-Sheng Chen, Mareike Altgassen, Ya Wang, Eric F C Cheung, Raymond C K Chan
This study investigated the development of multitasking ability across childhood. A sample of 65 typically developing children aged 7, 9, and 11years completed two multitasking tests across three time points within a year. Cross-sectional and longitudinal data consistently indicated continuous linear growth in children's multitasking ability. By the age of 12years, children could effectively perform a simple multitasking scenario comprising six equally important tasks, although their ability to strategically organize assorted tasks with varied values and priorities in a complex multitasking setting had not reached proficiency yet...
May 5, 2017: Journal of Experimental Child Psychology
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