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https://www.readbyqxmd.com/read/28822323/discriminative-clustering-on-manifold-for-adaptive-transductive-classification
#1
Zhao Zhang, Lei Jia, Min Zhang, Bing Li, Li Zhang, Fanzhang Li
In this paper, we mainly propose a novel adaptive transductive label propagation approach by joint discriminative clustering on manifolds for representing and classifying high-dimensional data. Our framework seamlessly combines the unsupervised manifold learning, discriminative clustering and adaptive classification into a unified model. Also, our method incorporates the adaptive graph weight construction with label propagation. Specifically, our method is capable of propagating label information using adaptive weights over low-dimensional manifold features, which is different from most existing studies that usually predict the labels and construct the weights in the original Euclidean space...
August 1, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28822316/improved-middle-ear-soft-tissue-visualization-using-synchrotron-radiation-phase-contrast-imaging
#2
Mai Elfarnawany, Seyed Alireza Rohani, Soroush Ghomashchi, Daniel G Allen, Ning Zhu, Sumit K Agrawal, Hanif M Ladak
High resolution images are used as a basis for finite-element modeling of the middle-ear structures to study their biomechanical function. Commonly used imaging techniques such as micro-computed tomography (CT) and optical microscopy require extensive sample preparation, processing or staining using contrast agents to achieve sufficient soft-tissue contrast. We compare imaging of middle-ear structures in unstained, non-decalcified human temporal bones using conventional absorption-contrast micro-CT and using synchrotron radiation phase-contrast imaging (SR-PCI)...
August 5, 2017: Hearing Research
https://www.readbyqxmd.com/read/28822296/developmental-changes-in-the-mental-transformation-of-spatial-arrays
#3
Christos S Michaelides, Marios N Avraamides
An experiment was conducted to investigate the spatial memory and transformation of spatial relations in a sample of 7-, 9-, and 11-year-olds and to compare their performance with that of adults. Four pictures of animals were presented at different locations on the outline of a circle. Participants were instructed to memorize the array of locations and then, in a direct retrieval task, to reconstruct it from memory on a piece of paper that included only the circle outline. Then, in the transformation task, participants were asked to randomly place one of the animals at a new position around the circle and then to place the remaining three animals so that object-to-object locations were preserved...
August 16, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28822095/validation-of-a-calibration-method-using-the-cross-calibration-factor-and-system-planar-sensitivity-in-quantitative-single-photon-emission-computed-tomography-imaging
#4
Norikazu Matsutomo, Saki Matsumoto, Tomoaki Yamamoto, Eisuke Sato
The present study aimed to validate the absolute quantitative accuracy of a calibration method for single-photon emission computed tomography (SPECT) using cross-calibration factor (CCF)- and system sensitivity-based calibration methods. The CCF obtained with different reconstruction parameters was evaluated using a cylindrical phantom (diameter 20 cm, height 20 cm). SPECT images were acquired with a positron emission tomography/computed tomography (CT) phantom. Subsequently, they were reconstructed by using ordered subset expectation maximization with resolution recovery, scatter, and CT-based attenuation correction...
August 18, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28822094/quantitative-knee-cartilage-measurement-at-mr-imaging-of-patients-with-anterior-cruciate-ligament-tear
#5
Kazuki Kato, Tamotsu Kamishima, Eiji Kondo, Tomohiro Onodera, Shota Ichikawa
In previous studies, numerous approaches were proposed that assess knee cartilage volume quantitatively using 3D magnetic resonance (MR) imaging. However, the clinical use of these approaches is limited because 3D MR is prone to metal artifacts in postoperative cases. Our purpose in this study was to validate a method for knee cartilage volume quantification using conventional MR imaging in patients who underwent anterior cruciate ligament (ACL) reconstruction surgery. The study included 16 patients who underwent MR imaging before and 1 year after ACL reconstruction surgery...
August 18, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28822060/corr-insights-%C3%A2-what-is-the-mid-term-failure-rate-of-revision-acl-reconstruction-a-systematic-review
#6
Romain Seil
No abstract text is available yet for this article.
August 18, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28822036/filling-the-gaps-in-the-classification-of-the-digenea-carus-1863-systematic-position-of-the-proterodiplostomidae-dubois-1936-within-the-superfamily-diplostomoidea-poirier-1886-inferred-from-nuclear-and-mitochondrial-dna-sequences
#7
David Iván Hernández-Mena, Martín García-Varela, Gerardo Pérez-Ponce de León
The Diplostomida Olson, Cribb, Tkach, Bray & Littlewood, 2003 is the less diverse order of the two orders within the subclass Digenea Carus, 1863 and is currently classified into three superfamilies, i.e. Brachylaimoidea Joyeux & Foley, 1930, Diplostomoidea Poirier, 1886, and Schistosomatoidea Stiles & Hassall, 1898. Although the suprageneric-level relationships have been elucidated with the use of molecular markers, the lack of representation of some groups obscure the phylogenetic relationships among families, rendering the classification unstable...
August 18, 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28821912/the-remnant-preservation-technique-reduces-the-amount-of-bone-tunnel-enlargement-following-anterior-cruciate-ligament-reconstruction
#8
Shinya Yanagisawa, Masashi Kimura, Keiichi Hagiwara, Atsuko Ogoshi, Tomoyuki Nakagawa, Hiroyuki Shiozawa, Takashi Ohsawa, Hirotaka Chikuda
PURPOSE: The aim of the present study was to investigate the correlation between postoperative tunnel enlargement after ACLR and remnant tissue preservation using the hamstring tendon. METHODS: One hundred and ninety-two subjects (male, n = 101; female, n = 91; mean age 27.1) who had undergone double-bundle ACL reconstruction were included in the present study. The patients were divided into two groups: the remnant tissue preservation group (Group R) and the non-remnant tissue preservation group (Group N)...
August 18, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28821847/overcoming-the-plasticity-of-plant-specialized-metabolism-for-selective-diterpene-production-in-yeast
#9
Codruta Ignea, Anastasia Athanasakoglou, Aggeliki Andreadelli, Maria Apostolaki, Minas Iakovides, Euripides G Stephanou, Antonios M Makris, Sotirios C Kampranis
Plants synthesize numerous specialized metabolites (also termed natural products) to mediate dynamic interactions with their surroundings. The complexity of plant specialized metabolism is the result of an inherent biosynthetic plasticity rooted in the substrate and product promiscuity of the enzymes involved. The pathway of carnosic acid-related diterpenes in rosemary and sage involves promiscuous cytochrome P450s whose combined activity results in a multitude of structurally related compounds. Some of these minor products, such as pisiferic acid and salviol, have established bioactivity, but their limited availability prevents further evaluation...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821797/detecting-hybridization-between-sister-species-of-terebratulina-brachiopoda-cancellothyridoidea-in-the-north-atlantic-morphology-versus-molecules
#10
Carsten Lüter, Nina A Ebeling, Martin Aberhan
Investigating samples of the cancellothyridid brachiopod Terebratulina collected during the IceAGE (Me85/3) expedition of RV METEOR at the continental shelf around Iceland with both morphometrical and molecular methods, we were for the first time able to detect a hybridization event between brachiopod sister species, which are thought to have separated 60 MYA. Terebratulina retusa and T. septentrionalis can clearly be distinguished on the basis of consistent species-specific molecular signatures in both mitochondrial and nuclear markers, whereas morphometrical analyses proved to be less reliable for species determination than previously thought...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821680/cortical-representations-of-speech-in-a-multi-talker-auditory-scene
#11
Krishna C Puvvada, Jonathan Z Simon
The ability to parse a complex auditory scene into perceptual objects is facilitated by a hierarchical auditory system. Successive stages in the hierarchy transform an auditory scene of multiple overlapping sources, from peripheral tonotopically-based representations in the auditory nerve, into perceptually distinct auditory-objects based representation in auditory cortex. Here, using magneto-encephalo-graphy (MEG) recordings from human subjects, both men and women, we investigate how a complex acoustic scene consisting of multiple speech sources is represented in distinct hierarchical stages of auditory cortex...
August 18, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28821464/multi-elemental-nanoparticle-exposure-after-tantalum-component-failure-in-hip-arthroplasty-in-depth-analysis-of-a-single-case
#12
Janosch Schoon, Sven Geißler, Juliane Traeger, Andreas Luch, Jutta Tentschert, Giorgio Perino, Frank Schulze, Georg N Duda, Carsten Perka, Anastasia Rakow
Porous tantalum components are widely used for complex acetabular reconstructions in revision hip arthroplasty. Multiple other metal alloys such as titanium-aluminum-vanadium or cobalt-chromium-molybdenum are principally used in artificial joint setups. We report a case of tantalum component failure being both cause and effect of a multiple metal exposure. Our aims were to assess and to characterize associated particle exposure and biological consequences. Metal level quantification revealed substantial in vivo exposure to particulate and dissociated tantalum, zirconium, chromium, cobalt, molybdenum, titanium, aluminum and vanadium in periprosthetic compartments...
August 16, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28820941/a-photoactivatable-probe-for-super-resolution-imaging-of-enzymatic-activity-in-live-cells
#13
Elias A Halabi, Zacharias Thiel, Nils Trapp, Dorothea Pinotsi, Pablo Rivera-Fuentes
A dual-activatable, fluorogenic probe was developed to sense esterase activity with single-molecule resolution. Without enzymatic pre-activation, the diazoindanone-based probe has an electron poor core and, upon irradiation, undergoes Wolff rearrangement to give a ring-expanded xanthene core that is non-emissive. If the probe is pre-activated by carboxylesterases, the tricyclic core becomes electron-rich and the photoinduced Wolff rearrangement produces a highly emissive rhodol dye. Live-cell and solution studies confirmed the selectivity of the probe and revealed that the photoactivated dye does not diffuse away from the original location of activation because the intermediate ketene forms a covalent bond with surrounding macromolecules...
August 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28820845/concomitant-panniculectomy-affects-wound-morbidity-but-not-hernia-recurrence-rates-in-abdominal-wall-reconstruction-a-propensity-score-analysis
#14
Salvatore Giordano, Patrick B Garvey, Donald P Baumann, Jun Liu, Charles E Butler
BACKGROUND: Panniculectomy (PAN) is often performed during abdominal wall reconstruction (AWR) to decrease wound healing complications and hernia recurrence rates. However, studies of AWR with concurrent panniculectomy (AWR+PAN) have reported contradictory results. We hypothesized that patients undergoing AWR+PAN experience more wound healing complications but similar rates of hernia recurrence compared to AWR alone. METHODS: In this retrospective study of 548 consecutive patients, 305 (52...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820844/a-new-method-for-reconstruction-of-vermilion-deficiency-in-cleft-lip-deformity-the-bi-winged-myomucosa-switch-flap
#15
KyungHoon Chung, Lun-Jou Lo
BACKGROUND: This study reviewed the method of using "Bi-winged myomucosa switch flap" for correction of secondary cleft lip deformity in patients with vermilion mucosa deficiency, lack of the central tubercle and disproportionate lip projection, obviating the conventional Abbé flap when the prolabium has acceptable philtrum and Cupid's bow definition. METHODS: The technique was applied to adult patients with secondary vermilion deficiency after primary bilateral cleft lip repair...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820842/-upper-extremity-innervation-patterns-and-clinical-implications-for-nerve-and-tendon-transfer
#16
Ellen Y Lee, Sandeep J Sebastin, Andre Cheah, V P Kumar, Aymeric Y T Lim
BACKGROUND: We previously studied the intramuscular innervation of 150 upper limb muscles and demonstrated that certain patterns of intramuscular innervation allowed muscles to be split into compartments with independent function. This study aims to determine the location, extra-muscular course, and number of motor nerve branches of upper limb peripheral nerves. We want to combine this information with our previous work to create a blueprint of upper limb neuromuscular anatomy that would be useful in reconstructive surgery...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820839/smaller-diameter-anastomotic-coupling-devices-have-higher-rates-of-venous-thrombosis-in-microvascular-free-tissue-transfer
#17
Summer E Hanson, Matthew B Mitchell, Nihanth Palivela, S Andrew Peng, Lei Feng, Rene D Largo, Charles E Butler, Patrick B Garvey
BACKGROUND: Smaller anastomotic coupling devices may increase the risk of complications in free flap reconstructions; however, the relationship between coupler size and venous thrombosis rates has not been adequately evaluated. We hypothesized that smaller-diameter coupling devices are associated with higher rates of venous thrombosis than larger diameter devices in free tissue transfer. METHODS: We retrospectively reviewed data prospectively entered into a central departmental database for all patients who underwent microsurgical free tissue transfer at our institution in 2001-2013...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820836/the-surgeon-s-fist-with-the-thumb-up-to-guide-the-design-and-inset-of-the-osteoseptocutaneous-fibula-flap-in-mandibular-reconstruction
#18
Nidal F Al Deek, Chung-Kan Tsao, Fu-Chan Wei
Successful reconstruction of the oromandibular defect with the osteoseptocutaneous fibula flap necessitates flawless design and inset, an experience-demanding endeavor. Laterality of the fibula flap has been thought to pose a certain challenge to the reconstruction. To address this concern and guide flap design and inset, the authors propsed using the surgeon's fist with the thumb up to replicate key anatomic land marks of the fibula flap: the peroneal vessels and proximal bone end, the posterior crural septum including the septal vessels, the skin, and the lateral surface of the fibula bone...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820835/simultaneous-stiles-bunnell-tendon-transfer-enhances-intrinsic-function-of-the-second-toe-transplantations
#19
Yu-Te Lin, Charles Yuen Yung Loh, Shwu-Huei Lien, Chih-Hung Lin, Fu-Chan Wei
Claw finger is sequelae of fingers without intrinsic function. Claw toe deformity is common after toe transfers as simultaneous intrinsic reconstruction has yet to be reported in the literature. We present our experience of simultaneous tendon transfers during the second toe transplantation. Seven 2nd toe transfers were performed in 5 metacarpal-like and metacarpal hands. The Stiles-Bunnell tendon transfer was incorporated into toe transfers. Toe lumbrical tendons were repaired to the Flexor Digitorum Sublimis of the same recipient digit...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820834/super-thin-scip-flap-for-reconstruction-of-subungual-melanoma-aesthetic-functional-surgery
#20
Kyeong-Tae Lee, Bo Young Park, Eun-Ji Kim, Jung-Han Kim, Kee-Taek Jang, Sang-Hee Choi, Dong-Youn Lee, Goo-Hyun Mun
BACKGROUND: This study aimed to use a super-thin, free superficial circumflex iliac artery perforator (SCIP) flap in the functional surgery for treating subungual melanoma and to evaluate its outcomes. METHODS: Forty-one patients with primary subungual melanoma of ≤ 2-mm thickness who were treated with functional surgery were prospectively enrolled. Following oncologic resection, a thin SCIP flap was harvested along the trans-superficial fat layer and transferred to the defect with further thinning by primary defatting...
August 8, 2017: Plastic and Reconstructive Surgery
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