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https://www.readbyqxmd.com/read/28214437/chempreview-an-augmented-reality-based-molecular-interface
#1
Min Zheng, Mark P Waller
Human computer interfaces make computational science more comprehensible and impactful. Complex 3D structures such as proteins or DNA are magnified by digital representations and displayed on two-dimensional monitors. Augmented reality has recently opened another door to access the virtual three-dimensional world. Herein, we present an augmented reality application called ChemPreview with the potential to manipulate bio-molecular structures at an atomistic level. ChemPreview is available at https://github.com/wallerlab/chem-preview/releases, and is built on top of the Meta 1 platform https://www...
January 31, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28212259/robotic-rectal-resection-with-a-single-docking-technique-thanks-to-the-rotation-of-the-r3-arm
#2
Benedetta Pesi, Mario Annecchiarico, Stefano Amore Bonapasta, Alessandro Nerini, Federico Perna, Lapo Bencini, Michele Di Marino, Andrea Coratti
BACKGROUND: Robotic surgery for rectal resection presents some advantages compared with the traditional technique; however, it also presents some limitations, especially due to the multiple changes of surgical fields. We describe a new technique to perform low-anterior resection using single docking with the rotation of the third arm and our perioperative results. MATERIALS AND METHODS: A total of 31 patients who underwent low-anterior rectal robotic resection with single-docking technique using robotic daVinci SI (Surgical Intuitive System) were included in the study...
February 16, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28212050/volume-controlled-ventilation-does-not-prevent-injurious-inflation-during-spontaneous-effort
#3
Takeshi Yoshida, Susumu Nakahashi, Maria Aparecida Miyuki Nakamura, Yukiko Koyama, Rollin Roldan, Vinicius Torsani, Roberta R De Santis, Susimeire Gomes, Akinori Uchiyama, Marcelo B P Amato, Brian P Kavanagh, Yuji Fujino
RATIONALE: Spontaneous breathing during mechanical ventilation increases transpulmonary pressure and tidal volume, and worsens lung injury. Intuitively, controlling tidal volume and transpulmonary pressure might limit injury from added spontaneous effort. OBJECTIVES: To test the hypothesis that during spontaneous effort in injured lungs, tidal volume and transpulmonary pressure limitation by volume-controlled ventilation results in less injurious patterns of inflation...
February 17, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28212010/assessing-generic-collective-variables-for-determining-reaction-rates-in-metadynamics-simulations
#4
Christopher D Fu, Luiz F L Oliveira, Jim Pfaendtner
A persistent challenge in using the metadynamics method is deciding which degrees of freedom, or collective variables, should be biased because these selections are not obvious and require intuition about the system being studied. There are, however, collective variables, which can be constructed with only basic knowledge about the system studied, that provide an opportunity to alleviate this issue. We simulated two different reacting systems where two types of such collective variables (SPRINT coordinates and the collective variable-driven hyperdynamics method) were biased following the infrequent metadynamics method in order to recover the rates of reactions...
February 17, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28211725/non-markovianity-hierarchy-of-gaussian-processes-and-quantum-amplification
#5
Pietro Liuzzo-Scorpo, Wojciech Roga, Leonardo A M Souza, Nadja K Bernardes, Gerardo Adesso
We investigate the dynamics of Gaussian states of continuous variable systems under Gaussianity-preserving channels. We introduce a hierarchy of such evolutions encompassing Markovian and weakly and strongly non-Markovian processes and provide simple criteria to distinguish between the classes, based on the degree of positivity of intermediate Gaussian maps. We present an intuitive classification of all one-mode Gaussian channels according to their non-Markovianity degree and show that weak non-Markovianity has an operational significance, as it leads to a temporary phase-insensitive amplification of Gaussian inputs beyond the fundamental quantum limit...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28211466/local-self-uniformity-in-photonic-networks
#6
Steven R Sellers, Weining Man, Shervin Sahba, Marian Florescu
The interaction of a material with light is intimately related to its wavelength-scale structure. Simple connections between structure and optical response empower us with essential intuition to engineer complex optical functionalities. Here we develop local self-uniformity (LSU) as a measure of a random network's internal structural similarity, ranking networks on a continuous scale from crystalline, through glassy intermediate states, to chaotic configurations. We demonstrate that complete photonic bandgap structures possess substantial LSU and validate LSU's importance in gap formation through design of amorphous gyroid structures...
February 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28208763/iterative-development-of-an-online-dietary-recall-tool-intake24
#7
Emma Simpson, Jennifer Bradley, Ivan Poliakov, Dan Jackson, Patrick Olivier, Ashley J Adamson, Emma Foster
Collecting large-scale population data on dietary intake is challenging, particularly when resources and funding are constrained. Technology offers the potential to develop novel ways of collecting large amounts of dietary information while making it easier, more convenient, intuitive, and engaging for users. INTAKE24 is an online multiple pass 24 h dietary recall tool developed for use in national food and nutrition surveys. The development of INTAKE24 was a four-stage iterative process of user interaction and evaluation with the intended end users, 11-24 years old...
February 9, 2017: Nutrients
https://www.readbyqxmd.com/read/28208398/driven-tracers-in-narrow-channels
#8
J Cividini, D Mukamel, H A Posch
Steady-state properties of a driven tracer moving in a narrow two-dimensional (2D) channel of quiescent medium are studied. The tracer drives the system out of equilibrium, perturbs the density and pressure fields, and gives the bath particles a nonzero average velocity, creating a current in the channel. Three models in which the confining effect of the channel is probed are analyzed and compared in this study: the first is the simple symmetric exclusion process (SSEP), for which the stationary density profile and the pressure on the walls in the frame of the tracer are computed...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28208092/microscopic-evidence-for-humic-acid-induced-changes-in-lead-immobilization-by-phosphate-in-a-counterdiffusion-system
#9
Mei Wang, Zhuo Zhang, Jie Ren, Chao Zhang, Chunping Li, Guanlin Guo, Fasheng Li
Abatement of lead (Pb) contamination in soil via chemical immobilization can reduce potential risks but is influenced by soil organic matter. The aim of this study was to observe and understand the influence of organic matter on Pb immobilization by phosphate. For this purpose, humic acid (HA) was introduced into a counterdiffusion system to mimic ionic reactions of the mineralization processes between the pollutant (Pb) and amendment agent (phosphate) in soil system, and were characterized jointly by in situ optical microscopy and ex situ XRD, SEM, TEM, and LSCM...
February 7, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28207786/hearing-flashes-and-seeing-beeps-timing-audiovisual-events
#10
Manuel Vidal
Many events from daily life are audiovisual (AV). Handclaps produce both visual and acoustic signals that are transmitted in air and processed by our sensory systems at different speeds, reaching the brain multisensory integration areas at different moments. Signals must somehow be associated in time to correctly perceive synchrony. This project aims at quantifying the mutual temporal attraction between senses and characterizing the different interaction modes depending on the offset. In every trial participants saw four beep-flash pairs regularly spaced in time, followed after a variable delay by a fifth event in the test modality (auditory or visual)...
2017: PloS One
https://www.readbyqxmd.com/read/28203636/i-want-to-media-multitask-and-i-want-to-do-it-now-individual-differences-in-media-multitasking-predict-delay-of-gratification-and-system-1-thinking
#11
Dan Schutten, Kirk A Stokes, Karen M Arnell
Media multitasking, the concurrent use of multiple media forms, has been shown to be related to greater self-reported impulsivity and less self-control. These measures are both hallmarks of the need for immediate gratification which has been associated with fast, intuitive 'system-1' decision making, as opposed to more deliberate and effortful 'system-2' decision making. In Study 1, we used the Cognitive Reflection Task (CRT) to examine whether individuals who engage heavily in media multitasking differ from those who are light media multitaskers in their degree of system-1 versus system-2 thinking...
2017: Cogn Res Princ Implic
https://www.readbyqxmd.com/read/28203536/clinical-outcomes-of-robotic-mitral-valve-repair-a-single-center-experience-in-korea
#12
Ho Jin Kim, Joon Bum Kim, Sung-Ho Jung, Jae Won Lee
BACKGROUND: Since the inception of robotic mitral valve repair (MV) in 2007 at our institution, it has become an acceptable surgical option with proven efficacy and safety. The objective of this study is to analyze the early and long-term clinical outcomes of patients undergoing robotic MV repair. METHODS: A total of 310 patients (aged 48.4±13.7 years, 201 males) undergoing robotic MV repair using the da Vinci system (Intuitive Surgical, Inc., Sunnyvale, CA) between August 2007 and December 2015 in our institution were evaluated...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28203535/the-state-of-robotic-cardiac-surgery-in-europe
#13
Matteo Pettinari, Emiliano Navarra, Philippe Noirhomme, Herbert Gutermann
BACKGROUND: In the past two decades, the introduction of robotic technology has facilitated minimally invasive cardiac surgery, allowing surgeons to operate endoscopically rather than through a median sternotomy. This approach has facilitated procedures for several structural heart conditions, including mitral valve repair, atrial septal defect closure and multivessel minimally invasive coronary artery bypass grafting. In this rapidly evolving field, we review the status of robotic cardiac surgery in Europe with a focus on mitral valve surgery and coronary revascularization...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28195030/extra-terra-incognita-martian-maps-in-the-digital-age
#14
Lisa Messeri
Science and technology studies (STS) and critical cartography are both asking questions about the ontological fixity of maps and other scientific objects. This paper examines how a group of NASA computer scientists who call themselves The Mapmakers conceptualizes and creates maps in service of different commitments. The maps under construction are those of alien Mars, produced through partnerships that NASA has established with Google and Microsoft. With the goal of bringing an experience of Mars to as many people as possible, these maps influence how we imagine our neighbouring planet...
February 2017: Social Studies of Science
https://www.readbyqxmd.com/read/28195028/academic-judgments-under-uncertainty-a-study-of-collective-anchoring-effects-in-swedish-research-council-panel-groups
#15
Lambros Roumbanis
This article focuses on anchoring effects in the process of peer reviewing research proposals. Anchoring effects are commonly seen as the result of flaws in human judgment, as cognitive biases that stem from specific heuristics that guide people when they involve their intuition in solving a problem. Here, the cognitive biases will be analyzed from a sociological point of view, as interactional and aggregated phenomena. The article is based on direct observations of ten panel groups evaluating research proposals in the natural and engineering sciences for the Swedish Research Council...
February 2017: Social Studies of Science
https://www.readbyqxmd.com/read/28194954/gecko-inspired-nanotentacle-surface-enhanced-raman-spectroscopy-substrate-for-sampling-and-reliable-detection-of-pesticide-residues-in-fruits-and-vegetables
#16
Pan Wang, Long Wu, Zhicheng Lu, Qin Li, Wenmin Yin, Fan Ding, Heyou Han
Rapid sampling and multicomponent detection are crucial for monitoring of pesticide residues analysis. Here, a gecko-inspired nanotentacle surface-enhanced Raman spectroscopy (G-SERS) platform is proposed for the first time for the simultaneous detection of three kinds of pesticides via a simple and intuitive "press and peeled-off" approach. The G-SERS platform obtained from seeding deposition of silver nanoparticles (Ag NPs) on 3D PDMS nanotentacle array is flexible and free-standing. Compared with other substrates, this G-SERS substrate can simultaneously provide outstanding SERS activity (enhancement factor = 1...
February 6, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28193077/partition-volume-variability-in-digital-polymerase-chain-reaction-methods-polydispersity-causes-bias-but-can-improve-precision
#17
Joel Tellinghuisen
The role of partition volume variability, or polydispersity, in digital polymerase chain reaction methods is examined through formal considerations and Monte Carlo simulations. Contrary to intuition, polydispersity causes little precision loss for low average copy number per partition μ and can actually improve precision when μ exceeds ∼4. It does this by negatively biasing the estimates of μ, thus increasing the number of negative (null) partitions N0. In keeping with binomial statistics, this increases the relative precision of N0 and hence of the biased estimate m of μ...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28192009/%C3%A3-tude-des-strat%C3%A3-gies-de-raisonnement-causal-dans-l-estimation-de-la-probabilit%C3%A3-diagnostique-%C3%A3-travers-un-paradigme-exp%C3%A3-rimental-de-production-de-r%C3%A3-gle
#18
Jean-Louis Stilgenbauer, Jean Baratgin
The objective of this research was to test for the existence of reasoning strategies in the estimation of the diagnostic probability: P(cause|effect). In two experiments, we show that estimation of this probability can be achieved by two paths that are formally distinct. The most intuitive approach (default strategy) consists in evaluating P(cause|effect) by means of retractable deduction type reasoning based on a retractable Modus Ponens (EFFECT; if EFFECT then CAUSE is probable; thus CAUSE is probable). The second strategy consists in estimating diagnostic probability using abductive reasoning corresponding to the affirmation of consequent argument (EFFECT; if CAUSE then EFFECT is probable; thus CAUSE is probable)...
February 13, 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
https://www.readbyqxmd.com/read/28191988/mock-juror-evaluations-of-traditional-and-ratings-based-eyewitness-identification-evidence
#19
James D Sauer, Matthew A Palmer, Neil Brewer
Compared to categorical identifications, culprit likelihood ratings (having the witness rate, for each lineup member, the likelihood that the individual is the culprit) provide a promising alternative for assessing a suspect's likely guilt. Four experiments addressed 2 broad questions about the use of culprit likelihood ratings evidence by mock-jurors. First, are mock-jurors receptive to noncategorical forms of identification evidence? Second, does the additional information provided by ratings (relating to discrimination) affect jurors' evaluations of the identification evidence? Experiments 1 and 1A manipulated confidence (90% vs...
February 13, 2017: Law and Human Behavior
https://www.readbyqxmd.com/read/28190429/the-scope-of-neurology-of-critical-illness
#20
E F M Wijdicks
Critical illness increases the probability of a neurologic complication. There are many reasons to consult a neurologist in a critically ill patient and most often it is altered alertness with no intuitive plausible explanation. Other common clinical neurologic problems facing the intensive care specialist and consulting neurologist in everyday decisions are coma following prolonged cardiovascular surgery, newly perceived motor asymmetry, seizures or other abnormal movements, and generalized muscle weakness...
2017: Handbook of Clinical Neurology
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