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https://www.readbyqxmd.com/read/28644815/landmark-image-retrieval-by-jointing-feature-refinement-and-multimodal-classifier-learning
#1
Xiaoming Zhang, Senzhang Wang, Zhoujun Li, Shuai Ma
Landmark retrieval is to return a set of images with their landmarks similar to those of the query images. Existing studies on landmark retrieval focus on exploiting the geometries of landmarks for visual similarity matches. However, the visual content of social images is of large diversity in many landmarks, and also some images share common patterns over different landmarks. On the other side, it has been observed that social images usually contain multimodal contents, i.e., visual content and text tags, and each landmark has the unique characteristic of both visual content and text content...
June 20, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28644782/how-should-resident-physicians-respond-to-patients-discomfort-and-students-moral-distress-when-learning-procedures-in-academic-medical-settings
#2
Bonnie M Miller
In this scenario, a medical student, Lauren, experiences moral distress because she feels that learning to perform a procedure on a patient who requested not to be used for "practice" puts her own interests above the patient's. Lauren might also worry that the resident physician is misrepresenting her abilities. The resident physician could help alleviate Lauren's distress and align her interests with the patient's by more clearly explaining the training situation to the patient and seeking the patient's approval...
June 1, 2017: AMA Journal of Ethics
https://www.readbyqxmd.com/read/28644491/mastering-high-resolution-tip-enhanced-raman-spectroscopy-towards-a-shift-of-perception
#3
REVIEW
Marie Richard-Lacroix, Yao Zhang, Zhenchao Dong, Volker Deckert
Recent years have seen tremendous improvement of our understanding of high resolution reachable in TERS experiments, forcing us to re-evaluate our understanding of the intrinsic limits of this field, but also exposing several inconsistencies. On the one hand, more and more recent experimental results have provided us with clear indications of spatial resolutions down to a few nanometres or even on the subnanometre scale. Moreover, lessons learned from recent theoretical investigations clearly support such high resolutions, and vice versa the obvious theoretical impossibility to evade high resolution from a purely plasmonic point of view...
June 23, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28644239/effect-of-the-learning-curve-on-visual-and-refractive-outcomes-of-small-incision-lenticule-extraction
#4
Tommy C Y Chan, Alex L K Ng, George P M Cheng, Victor C P Woo, Jiamei Zhang, Yan Wang, Vishal Jhanji
PURPOSE: To investigate the effect of the learning curve for small-incision lenticule extraction during the first 2 years of experience. METHODS: Small-incision lenticule extraction was performed using the 500-kHz VisuMax femtosecond laser (Carl Zeiss Meditec) by the same surgeon. The initial 100 patients since the surgeon started operating independently were considered as group 1; the recent 100 patients were considered as group 2. The same laser settings and technique were used...
June 21, 2017: Cornea
https://www.readbyqxmd.com/read/28643607/diabetes-self-management-training-in-a-virtual-environment
#5
Louise Reagan, Katherine Pereira, Vanessa Jefferson, Kathryn Evans Kreider, Susan Totten, Gail D'Eramo Melkus, Constance Johnson, Allison Vorderstrasse
Diabetes self-management training (DSMT) improves diabetes health outcomes. However, low numbers of patients receive DSMT. Using virtual environments (VEs) for DSMT is an innovative approach to removing barriers for patients. The purpose of this paper is to describe the experience of health professionals and diabetes educators establishing and teaching DSMT in a VE, Diabetes LIVE© (Learning in Virtual Environments), and the implications for future use of VEs in DSMT. It was found that providing DSMT in a VE preserves real-time interaction between patients and educators...
June 1, 2017: Diabetes Educator
https://www.readbyqxmd.com/read/28643605/novel-simulation-device-for-targeting-tumors-in-laparoscopic-ablation-a-learning-curve-study
#6
Zeljka Jutric, Jan Grendar, William L Brown, Maria A Cassera, Ronald F Wolf, Paul D Hansen, Chet W Hammill
INTRODUCTION: A novel 3-dimensional (3D) guidance system was developed to aid accurate needle placement during ablation. METHODS: Five novices and 5 experienced hepatobiliary surgeons were recruited. Using an agar block with analog tumor, participants targeted under 4 conditions: in-line with the ultrasound plane using ultrasound, in-line using 3D guidance, 45° off-axis using ultrasound, and off-axis using 3D guidance. Time to target the tumor, number of withdrawals, and the National Aeronautics and Space Administration Task Load Index were collected...
June 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28643302/-comparison-of-robotic-and-laparoscopic-total-mesorectal-excision
#7
Pan Chi, Zhifen Chen
Laparoscopic total mesorectal excision (TME) has been commonly applied in the operation of mid-low rectal cancer, but the conventional laparoscopic TME has the disadvantages of major operative difficulty and long learning-curve, due to its limitations of 2-dimension vision and common laparoscopic instruments. Robotic surgical system with high-qualified 3-dimenstion vision and flexible Endo Wrist instruments can overcome those limitations of conventional laparoscopy, and is useful for the TME that demands deep pelvic operation and flexible dissection in the space of distal rectum...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28643300/-advantages-and-disadvantages-of-minimally-invasive-surgery-in-colorectal-cancer-surgery
#8
Minhua Zheng, Junjun Ma
Since the emergence of minimally invasive technology twenty years ago, as a surgical concept and surgical technique for colorectal cancer surgery, its obvious advantages have been recognized. Laparoscopic technology, as one of the most important technology platform, has got a lot of evidence-based support for the oncological safety and effectiveness in colorectal cancer surgery Laparoscopic technique has advantages in terms of identification of anatomic plane and autonomic nerve, protection of pelvic structure, and fine dissection of vessels...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28642696/how-accumulated-real-life-stress-experience-and-cognitive-speed-interact-on-decision-making-processes
#9
Eva Friedel, Miriam Sebold, Sören Kuitunen-Paul, Stephan Nebe, Ilya M Veer, Ulrich S Zimmermann, Florian Schlagenhauf, Michael N Smolka, Michael Rapp, Henrik Walter, Andreas Heinz
Rationale: Advances in neurocomputational modeling suggest that valuation systems for goal-directed (deliberative) on one side, and habitual (automatic) decision-making on the other side may rely on distinct computational strategies for reinforcement learning, namely model-free vs. model-based learning. As a key theoretical difference, the model-based system strongly demands cognitive functions to plan actions prospectively based on an internal cognitive model of the environment, whereas valuation in the model-free system relies on rather simple learning rules from operant conditioning to retrospectively associate actions with their outcomes and is thus cognitively less demanding...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28642693/exposure-to-unsolvable-anagrams-impairs-performance-on-the-iowa-gambling-task
#10
Katrin Starcke, Janet D Agorku, Matthias Brand
Recent research indicates that external manipulations, such as stress or mood induction, can affect decision-making abilities. In the current study, we investigated whether the exposure to an unsolvable task affected subsequent performance on the Iowa Gambling Task. Participants were randomly assigned to a condition in which they were exposed to unsolvable anagrams (n = 20), or a condition in which they worked on solvable anagrams (n = 22). Afterwards, all participants played the Iowa Gambling Task, a prominent task that measures decision making under uncertain conditions with no explicit rules for gains and losses...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28642081/tetrahydrocannabinol-thc-impairs-encoding-but-not-retrieval-of-verbal-information
#11
Mohini Ranganathan, Rajiv Radhakrishnan, Peter H Addy, Ashley Schnakenberg, Ashley Williams, Michelle Carbuto, Jacqueline Elander, Brian Pittman, R Andrew Sewell, Patrick D Skosnik, Deepak Cyril D'Souza
INTRODUCTION: Cannabis and agonists of the brain cannabinoid receptor (CB1R) produce acute memory impairments in humans. However, the extent to which cannabinoids impair encoding and retrieval in humans has not been established. The objective of this analysis was to determine whether the administration of Δ(9)-Tetrahydrocannabinol (THC), the principal psychoactive constituent of cannabis, impairs encoding and/or retrieval of verbal information. MATERIALS AND METHODS: Healthy subjects were recruited from the community...
June 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28641809/re-emerging-infectious-diseases-from-the-past-hysteria-or-real-risk
#12
Charlier Philippe, Claverie Jean-Michel, Sansonetti Philippe, Coppens Yves, Augias Anaïs, Jacqueline Sophie, Rengot Fanny, Deo Saudamini
BACKGROUND: Work on human remains and old biological samples is a potential source of contamination by conventional or atypical infectious agents. Similarly, current and future environmental changes are a source of resurgence of ancient epidemic diseases. To what extent are anthropologists sorcerer apprentices (especially those working on ancient samples, i.e. paleo-anthropologists)? Are ancient skeletons, palaeosols and museum objects with a biological component at risk for current populations? Unless there are unfounded fears and undue risk… What can be learned from the recent scientific literature and the common sense of the researchers? METHODS: We have attempted to compile data from the literature and from our personal experience in the fields of anthropology, clinical medicine and epidemiology, in order to grasp the reality of the risk to the human population...
June 19, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28641274/an-efficient-multiple-variants-coordination-framework-for-differential-evolution
#13
Sheng Xin Zhang, Shao Yong Zheng, Li Ming Zheng
Differential evolution (DE) is recognized as a simple but powerful algorithm in the family of evolutionary algorithms. Over the past two decades, many advanced DE variants with significantly improved performance have been proposed. However, the variants may only achieve the best performance on a certain type of functions. Moreover, a specific optimizer may not always be suitable for the whole optimization process. To overcome these weaknesses, this paper proposes a multiple variants coordination (MVC) framework with two mechanisms, namely, the multiple variants adaptive selecting mechanism and the multiple variants adaptive solutions preserving mechanisms (MV-APM)...
June 19, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28641273/learning-and-recognition-of-clothing-genres-from-full-body-images
#14
Shintami C Hidayati, Chuang-Wen You, Wen-Huang Cheng, Kai-Lung Hua
According to the theory of clothing design, the genres of clothes can be recognized based on a set of visually differentiable style elements, which exhibit salient features of visual appearance and reflect high-level fashion styles for better describing clothing genres. Instead of using less-discriminative low-level features or ambiguous keywords to identify clothing genres, we proposed a novel approach for automatically classifying clothing genres based on the visually differentiable style elements. A set of style elements, that are crucial for recognizing specific visual styles of clothing genres, were identified based on the clothing design theory...
June 19, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28641271/joint-attributes-and-event-analysis-for-multimedia-event-detection
#15
Zhigang Ma, Xiaojun Chang, Zhongwen Xu, Nicu Sebe, Alexander G Hauptmann
Semantic attributes have been increasingly used the past few years for multimedia event detection (MED) with promising results. The motivation is that multimedia events generally consist of lower level components such as objects, scenes, and actions. By characterizing multimedia event videos with semantic attributes, one could exploit more informative cues for improved detection results. Much existing work obtains semantic attributes from images, which may be suboptimal for video analysis since these image-inferred attributes do not carry dynamic information that is essential for videos...
June 15, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28641261/robust-web-image-annotation-via-exploring-multi-facet-and-structural-knowledge
#16
Mengqiu Hu, Yang Yang, Fumin Shen, Luming Zhang, Heng Tao Shen, Xuelong Li
Driven by the rapid development of Internet and digital technologies, we have witnessed the explosive growth of Web images in recent years. Seeing that labels can reflect the semantic contents of the images, automatic image annotation, which can further facilitate the procedure of image semantic indexing, retrieval and other image management tasks, has become one of the most crucial research directions in multimedia. Most of the existing annotation methods heavily rely on well-labeled training data (expensive to collect) and/or single view of visual features (insufficient representative power)...
June 19, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28641208/an-associative-account-of-the-development-of-word-learning
#17
Vladimir M Sloutsky, Hyungwook Yim, Xin Yao, Simon Dennis
Word learning is a notoriously difficult induction problem because meaning is underdetermined by positive examples. How do children solve this problem? Some have argued that word learning is achieved by means of inference: young word learners rely on a number of assumptions that reduce the overall hypothesis space by favoring some meanings over others. However, these approaches have difficulty explaining how words are learned from conversations or text, without pointing or explicit instruction. In this research, we propose an associative mechanism that can account for such learning...
June 19, 2017: Cognitive Psychology
https://www.readbyqxmd.com/read/28641121/is-inhibitory-control-involved-in-discriminating-pseudowords-that-contain-the-reversible-letters-b-and-d
#18
Lorie-Marlène Brault Foisy, Emmanuel Ahr, Steve Masson, Olivier Houdé, Grégoire Borst
Children tend to confuse reversible letters such as b and d when they start learning to read. According to some authors, mirror errors are a consequence of the mirror generalization (MG) process that allows one to recognize objects independently of their left-right orientation. Although MG is advantageous for the visual recognition of objects, it is detrimental for the visual recognition of reversible letters. Previous studies comparing novice and expert readers demonstrated that MG must be inhibited to discriminate reversible single letters...
June 19, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28640883/an-artificial-emg-generation-model-based-on-signal-dependent-noise-and-related-application-to-motion-classification
#19
Akira Furui, Hideaki Hayashi, Go Nakamura, Takaaki Chin, Toshio Tsuji
This paper proposes an artificial electromyogram (EMG) signal generation model based on signal-dependent noise, which has been ignored in existing methods, by introducing the stochastic construction of the EMG signals. In the proposed model, an EMG signal variance value is first generated from a probability distribution with a shape determined by a commanded muscle force and signal-dependent noise. Artificial EMG signals are then generated from the associated Gaussian distribution with a zero mean and the generated variance...
2017: PloS One
https://www.readbyqxmd.com/read/28640478/usefulness-of-office-examination-with-narrow-band-imaging-for-the-diagnosis-of-head-and-neck-squamous-cell-carcinoma-and-follow-up-of-premalignant-lesions
#20
Isabel Vilaseca, Meritxell Valls-Mateus, Anna Nogués, Eduardo Lehrer, Mauricio López-Chacón, Francesc Xavier Avilés-Jurado, José Luis Blanch, Manuel Bernal-Sprekelsen
BACKGROUND: The purpose of this study was to evaluate the value of narrow band imaging (NBI) examination in the office for the diagnosis and follow-up of upper airway premalignant and malignant lesions. METHODS: Four hundred eighty lesions were evaluated with white light endoscopy (WLE) and NBI before a biopsy/excision. Additionally, 151 premalignant lesions were followed up without proven biopsy. Carcinoma-free survival was calculated. The learning curve was analyzed...
June 22, 2017: Head & Neck
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