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https://www.readbyqxmd.com/read/27906366/instantaneous-phase-shifting-deflectometry
#1
Isaac Trumper, Heejoo Choi, Dae Wook Kim
An instantaneous phase shifting deflectometry measurement method is presented and implemented by measuring a time varying deformable mirror with an iPhone <sup>®</sup> 6. The instantaneous method is based on multiplexing phase shifted fringe patterns with color, and decomposing them in x and y using Fourier techniques. Along with experimental data showing the capabilities of the instantaneous deflectometry system, a quantitative comparison with the Fourier transform profilometry method, which is a distinct phase measuring method from the phase shifting approach, is presented...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906362/2-sup-16-sup-shades-of-gray-high-bit-depth-projection-using-light-intensity-control
#2
Jen-Hao Rick Chang, B V K Vijaya Kumar, Aswin C Sankaranarayanan
Projectors create grayscale images by outputting a series of bitplanes or binary images within a short time period. While this technique works well for projecting low bit-depth (8-bit) images, it becomes infeasible for high bit-depth (say, 16-bit) projection - a capability that is increasingly desirable in many applications including cinemas and gaming. Existing designs for high bit-depth projection rely on multiple spatial light modulators and, as a consequence, their costs and complexities are usually far beyond the average consumer...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27905871/phyinformr-phylogenetic-experimental-design-and-phylogenomic-data-exploration-in-r
#3
Alex Dornburg, J Nick Fisk, Jules Tamagnan, Jeffrey P Townsend
BACKGROUND: Analyses of phylogenetic informativeness represent an important step in screening potential or existing datasets for their proclivity toward convergent or parallel evolution of molecular sites. However, while new theory has been developed from which to predict the utility of sequence data, adoption of these advances have been stymied by a lack of software enabling application of advances in theory, especially for large next-generation sequence data sets. Moreover, there are no theoretical barriers to application of the phylogenetic informativeness or the calculation of quartet internode resolution probabilities in a Bayesian setting that more robustly accounts for uncertainty, yet there is no software with which a computationally intensive Bayesian approach to experimental design could be implemented...
December 1, 2016: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/27904933/-metastatic-disease-in-long-bones-review-of-surgical-treatment-options
#4
Franz Liska, Philipp Schmitz, Norbert Harrasser, Peter Prodinger, Hans Rechl, Rüdiger von Eisenhart-Rothe
Surgery in metastatic bone disease is currently the most frequent type of surgery in orthopedic oncology. Improved survival rates and an increasing incidence of bone metastasis have led to an increase in complications caused by metastatic disease, such as pathological fractures or hardware failure after operative treatment. Although surgery of metastatic lesions remains a palliative therapy concept, because of sufficient therapy for the primary carcinomas, tumor-specific-oriented follow-up protocols and a variation in the prognosis for the individual entities, an individually adapted treatment strategy is necessary...
November 30, 2016: Der Unfallchirurg
https://www.readbyqxmd.com/read/27903929/a-comparison-of-outcomes-of-particulated-juvenile-articular-cartilage-and-bone-marrow-aspirate-concentrate-for-articular-cartilage-lesions-of-the-talus
#5
Nathan S Lanham, John J Carroll, Minton T Cooper, Venkat Perumal, Joseph S Park
Background Articular cartilage lesions of the talus remain a challenging clinical problem because of the lack of natural regeneration and limited treatment options. Microfracture is often the first-line therapy, however lesions larger than 1.5 cm(2) have been shown to not do as well with this treatment method. Methods The objective of this retrospective study was to evaluate the outcomes of iliac crest bone marrow aspirate concentrate/collagen scaffold (ICBMA) and particulated juvenile articular cartilage (PJAC) for larger articular cartilage lesions of the talus...
November 30, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27903810/subthalamic-nucleus-deep-brain-stimulation-in-isolated-dystonia-a-3-year-follow-up-study
#6
Jill L Ostrem, Marta San Luciano, Kristen A Dodenhoff, Nathan Ziman, Leslie C Markun, Caroline A Racine, Coralie de Hemptinne, Monica M Volz, Susan L Heath, Philip A Starr
OBJECTIVE: To report long-term safety and efficacy outcomes of a large cohort of patients with medically refractory isolated dystonia treated with subthalamic nucleus (STN) deep brain stimulation (DBS). METHODS: Twenty patients (12 male, 8 female; mean age 49 ± 16.3 years) with medically refractory isolated dystonia were studied (14 were followed for 36 months). The primary endpoints were change in Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS) motor score and Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) total score at 36 months compared to preoperative baseline...
November 30, 2016: Neurology
https://www.readbyqxmd.com/read/27900711/lacertus-fibrosus-augmentation-for-distal-biceps-brachii-rupture-repair-surgical-technique
#7
M Fontana, A Trimarchi, A Colozza
BACKGROUND: Repair of distal biceps tendon ruptures has become widely accepted. Unfortunately, care of retracted-degenerated injuries remains a challenge for orthopedic surgeons. Complication rates appear to increase when surgery is performed in chronic cases compared to those operated acutely. Multiple techniques for chronic reconstruction with the use of grafts have been described. Recently Morrey, from the Mayo Clinic, proposed a direct anatomic repair of retracted distal biceps tendon ruptures in extreme flexion (60°-90°) to avoid grafting...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27900268/management-of-syndesmotic-injuries-what-is-the-evidence
#8
REVIEW
Marc Schnetzke, Sven Y Vetter, Nils Beisemann, Benedict Swartman, Paul A Grützner, Jochen Franke
Ankle fractures are accompanied by a syndesmotic injury in about 10% of operatively treated ankle fractures. Usually, the total rupture of the syndesmotic ligaments with an external rotation force is associated with a Weber type B or C fracture or a Maisonneuve fracture. The clinical assessment should consist of a comprehensive history including mechanism of injury followed by a specific physical examination. Radiographs, and if in doubt magnetic resonance imaging, are needed to ascertain the syndesmotic injury...
November 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/27899609/enabling-the-democratization-of-the-genomics-revolution-with-a-fully-integrated-web-based-bioinformatics-platform
#9
Po-E Li, Chien-Chi Lo, Joseph J Anderson, Karen W Davenport, Kimberly A Bishop-Lilly, Yan Xu, Sanaa Ahmed, Shihai Feng, Vishwesh P Mokashi, Patrick S G Chain
Continued advancements in sequencing technologies have fueled the development of new sequencing applications and promise to flood current databases with raw data. A number of factors prevent the seamless and easy use of these data, including the breadth of project goals, the wide array of tools that individually perform fractions of any given analysis, the large number of associated software/hardware dependencies, and the detailed expertise required to perform these analyses. To address these issues, we have developed an intuitive web-based environment with a wide assortment of integrated and cutting-edge bioinformatics tools in pre-configured workflows...
November 28, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27898761/transplant-resources-for-triticeae-genomic-data
#10
Manuel Spannagl, Michael Alaux, Matthias Lange, Daniel M Bolser, Kai C Bader, Thomas Letellier, Erik Kimmel, Raphael Flores, Cyril Pommier, Arnaud Kerhornou, Brandon Walts, Thomas Nussbaumer, Christoph Grabmuller, Jinbo Chen, Christian Colmsee, Sebastian Beier, Martin Mascher, Thomas Schmutzer, Daniel Arend, Anil Thanki, Ricardo Ramirez-Gonzalez, Martin Ayling, Sarah Ayling, Mario Caccamo, Klaus F X Mayer, Uwe Scholz, Delphine Steinbach, Hadi Quesneville, Paul J Kersey
The genome sequences of many important Triticeae species, including bread wheat ( L.) and barley ( L.), remained uncharacterized for a long time because their high repeat content, large sizes, and polyploidy. As a result of improvements in sequencing technologies and novel analyses strategies, several of these have recently been deciphered. These efforts have generated new insights into Triticeae biology and genome organization and have important implications for downstream usage by breeders, experimental biologists, and comparative genomicists...
March 2016: Plant Genome
https://www.readbyqxmd.com/read/27898299/pfg-nmr-and-bayesian-analysis-to-characterise-non-newtonian-fluids
#11
Thomas W Blythe, Andrew J Sederman, E Hugh Stitt, Andrew P E York, Lynn F Gladden
Many industrial flow processes are sensitive to changes in the rheological behaviour of process fluids, and there therefore exists a need for methods that provide online, or inline, rheological characterisation necessary for process control and optimisation over timescales of minutes or less. Nuclear magnetic resonance (NMR) offers a non-invasive technique for this application, without limitation on optical opacity. We present a Bayesian analysis approach using pulsed field gradient (PFG) NMR to enable estimation of the rheological parameters of Herschel-Bulkley fluids in a pipe flow geometry, characterised by a flow behaviour index n, yield stress τ0, and consistency factor k, by analysis of the signal in q-space...
November 10, 2016: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/27898029/data-driven-multiresolution-camera-using-the-foveal-adaptive-pyramid
#12
Martin González, Antonio Sánchez-Pedraza, Rebeca Marfil, Juan A Rodríguez, Antonio Bandera
There exist image processing applications, such as tracking or pattern recognition, that are not necessarily precise enough to maintain the same resolution across the whole image sensor. In fact, they must only keep it as high as possible in a relatively small region, but covering a wide field of view. This is the aim of foveal vision systems. Briefly, they propose to sense a large field of view at a spatially-variant resolution: one relatively small region, the fovea, is mapped at a high resolution, while the rest of the image is captured at a lower resolution...
November 26, 2016: Sensors
https://www.readbyqxmd.com/read/27897042/state-of-the-art-pulmonary-ct-angiography-for-acute-pulmonary-embolism
#13
Moritz H Albrecht, Matthew W Bickford, John W Nance, Longjiang Zhang, Carlo N De Cecco, Julian L Wichmann, Thomas J Vogl, U Joseph Schoepf
OBJECTIVE: Pulmonary CT angiography (CTA) is the imaging modality of choice in suspected acute pulmonary embolism (PE). Current pulmonary CTA techniques involve ever lower doses of contrast medium and radiation along with advanced postprocessing applications to enhance image quality, diagnostic accuracy, and provide added value in patient management. The objective of this article is to summarize these current developments and discuss the appropriate use of state-of-the-art pulmonary CTA...
November 29, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27896816/altered-pharyngeal-structure-and-dynamics-among-patients-with-cervical-kyphosis
#14
Derrick R Randall, E Brandon Strong, Peter C Belafsky
OBJECTIVES/HYPOTHESIS: Deformities of the anterior cervical spine are an established cause of dysphagia. Whereas osteophytes and spinal fusion hardware have been reported to alter bolus flow and contribute to swallowing dysfunction, the relationship between abnormal spine curvature and swallowing dysfunction is not established. The purpose of this investigation was to evaluate the association between cervical kyphosis and objective measures of swallowing dysfunction on videofluoroscopy...
November 29, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27896779/multiplex-smartphone-diagnostics
#15
Juan L Martinez-Hurtado, Ali K Yetisen, Seok-Hyun Yun
Increasing computing power in smartphones allows for their transformation into point-of-care diagnostic devices. Mobile medical diagnostic applications enable utilization of the processing capabilities of smartphones through their cameras. Hardware attachments or stand-alone versions of smartphone diagnostics have the capability to revolutionize quantitative readouts. Here, we describe a protocol for quantifying commercial colorimetric diagnostic tests with a stand-alone smartphone application. This approach can be used in the multiplexed analyses of biomarker readouts...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27894176/complications-and-short-term-outcomes-of-medial-opening-wedge-high-tibial-osteotomy-using-a-locking-plate-for-medial-osteoarthritis-of-the-knee
#16
Seung-Suk Seo, Ok-Gul Kim, Jin-Hyeok Seo, Do-Hoon Kim, Youn-Gu Kim, In-Seung Lee
Purpose: The purpose of this study was to investigate complications and radiologic and clinical outcomes of medial opening wedge high tibial osteotomy (MOWHTO) using a locking plate. Materials and Methods: This study reviewed 167 patients who were treated with MOWHTO using a locking plate from May 2012 to June 2014. Patients without complications were classified into group 1 and those with complications into group 2. Medical records, operative notes, and radiographs were retrospectively reviewed to identify complications...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27893400/multivariate-cryptography-based-on-clipped-hopfield-neural-network
#17
Jia Wang, Lee-Ming Cheng, Tong Su
Designing secure and efficient multivariate public key cryptosystems [multivariate cryptography (MVC)] to strengthen the security of RSA and ECC in conventional and quantum computational environment continues to be a challenging research in recent years. In this paper, we will describe multivariate public key cryptosystems based on extended Clipped Hopfield Neural Network (CHNN) and implement it using the MVC (CHNN-MVC) framework operated in GF(p) space. The Diffie--Hellman key exchange algorithm is extended into the matrix field, which illustrates the feasibility of its new applications in both classic and postquantum cryptography...
November 23, 2016: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/27891293/high-kvp-assisted-metal-artifact-reduction-for-x-ray-computed-tomography
#18
Yan Xi, Yannan Jin, Bruno De Man, Ge Wang
In X-ray computed tomography (CT), the presence of metallic parts in patients causes serious artifacts and degrades image quality. Many algorithms were published for metal artifact reduction (MAR) over the past decades with various degrees of success but without a perfect solution. Some MAR algorithms are based on the assumption that metal artifacts are due only to strong beam hardening and may fail in the case of serious photon starvation. Iterative methods handle photon starvation by discarding or underweighting corrupted data, but the results are not always stable and they come with high computational cost...
2016: IEEE Access: Practical Innovations, Open Solutions
https://www.readbyqxmd.com/read/27890337/a-double-button-adjustable-loop-device-is-biomechanically-equivalent-to-tension-band-wire-in-the-fixation-of-transverse-patellar-fractures-a-cadaveric-study
#19
Fucai Han, Christopher Jon Pearce, David Q K Ng, Amit K Ramruttun, Desmond Y R Chong, Diarmuid Murphy, Chin Tat Lim, Bernard C S Lee
INTRODUCTION: Tension-band wire fixation of patellar fractures is associated with significant hardware-related complications and infection. Braided polyester suture fixation is an alternative option. However, these suture fixations have higher failure rates due to the difficulty in achieving rigid suture knot fixation. The Arthrex syndesmotic TightRope, which is a double-button adjustable loop fixation device utilizing a 4-point locking system using FibreWire, may not only offer stiff rigid fixation using a knotless system, but may also obviate the need for implant removal due to hardware related problems...
November 17, 2016: Injury
https://www.readbyqxmd.com/read/27888794/custom-fpga-processing-for-real-time-fetal-ecg-extraction-and-identification
#20
E Torti, D Koliopoulos, M Matraxia, G Danese, F Leporati
Monitoring the fetal cardiac activity during pregnancy is of crucial importance for evaluating fetus health. However, there is a lack of automatic and reliable methods for Fetal ECG (FECG) monitoring that can perform this elaboration in real-time. In this paper, we present a hardware architecture, implemented on the Altera Stratix V FPGA, capable of separating the FECG from the maternal ECG and to correctly identify it. We evaluated our system using both synthetic and real tracks acquired from patients beyond the 20th pregnancy week...
November 17, 2016: Computers in Biology and Medicine
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