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"Component separation"

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https://www.readbyqxmd.com/read/28237928/robust-multi-exposure-image-fusion-a-structural-patch-decomposition-approach
#1
Kede Ma, Hui Li, Hongwei Yong, Zhou Wang, Deyu Meng, Lei Zhang
We propose a simple yet effective structural patch decomposition (SPD) approach for multi-exposure image fusion (MEF) that is robust to ghosting effect. We decompose an image patch into three conceptually independent components: signal strength, signal structure, and mean intensity. Upon fusing these three components separately, we reconstruct a desired patch and place it back into the fused image. This novel patch decomposition approach benefits MEF in many aspects. First, as opposed to most pixel-wise MEF methods, the proposed algorithm does not require post-processing steps to improve visual quality or to reduce spatial artifacts...
February 20, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28202193/comprehensive-three-dimensional-gas-chromatography-mass-spectrometry-separation-of-diesel
#2
Frank Cheng-Yu Wang
Diesel, a complex hydrocarbon mixture, was examined using comprehensive two-dimensional gas chromatography (GC×GC) and a field ionization mass spectrometer (FIMS), which preferentially yields molecular ions, providing an extra dimension for component separation. Molecular ions collected at low mass resolution can be assigned an NM-class (Nominal Mass-class) value that does not completely express hydrogen deficiency. In contrast to formulae and Z-class assignments that are possible from ultrahigh mass resolution, NM-class assignments are not unambiguous; however, the separation provided by GC×GC can result in coelution of components that differ in NM-class...
March 17, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28187028/comparison-of-surgeon-specialty-in-open-ventral-hernia-repair
#3
Chris M Reid, Michael G Brandel, Amanda A Gosman
BACKGROUND: Ventral hernia repair is a common procedure and is undertaken by surgeons with varying training backgrounds. Outcomes after hernia repair depend on numerous factors, some being patient or surgeon specific. It remains unclear what the ideal roles are for general and plastic surgeons in open ventral hernia repair. We hypothesized that open ventral hernia repair by plastic surgeons is safe and comparable with general surgeons. METHODS: We performed a retrospective observational study using data from the National Surgical Quality Improvement Program database from 2007 to 2013...
February 10, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28157913/analysis-of-multi-wavelength-measurements-of-diffusive-properties-via-dispersion-dependence-of-optical-properties
#4
A Mialdun, V Shevtsova
We suggest a novel approach to analyze the diffusive properties of mixtures using their optical dispersion relations. Two diagnostics are required to determine the thermodiffusion coefficients in a ternary mixture, e.g., two different wavelengths. The literature results on thermodiffusion experiments indicate that the choice of a pair of wavelengths affects the result of the sought-after thermodiffusion (Soret) coefficients somewhat, because the numerical values of the refractive index variation with the concentration (optical contrast factor ∂n/∂C) depend on the wavelength...
January 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28153601/quantitative-assessment-of-tension-reduction-at-the-midline-closure-during-abdominal-components-separation
#5
Ahmed M Afifi, Emily Hartman, Ahmed Talaat, Ashraf Abo Alfotooh, Omar S Omar, Sayed Mareei, Ruston Sanchez, Steve J Kempton
BACKGROUND: Abdominal component separation is commonly utilized for the closure of midline abdominal wounds. The value of each step in reducing tension has not been studied. Our aim is to test if component separation decreases tension in the midline closure and quantify the value of each procedural step. STUDY DESIGN: Tension required to bring the rectus muscle to midline was measured using tensiometry after subcutaneous dissection (Step 1), external oblique muscle release (Step 2), separation of the internal and external oblique muscles (Step 3), and internal oblique muscle release (Step 4)...
January 31, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28151808/techniques-for-abdominal-wall-reconstruction-in-intestinal-transplantation
#6
Gabriel E Gondolesi, Nicolás F Aguirre
PURPOSE OF REVIEW: One of the most important challenges in the intestinal (ITx) and multivisceral transplant (MVTx) is to achieve a successful abdominal wall closure. RECENT FINDINGS: A tension-free primary closure should be our aim. In most of the cases, we need to perform a component separation technique, alone or combined, to the use of a synthetic mesh. If those options are not feasible, the abdominal wall composite vascularized allograft transplant (AW-CVA) utilizing direct orthotopic vascularization can be considered...
February 1, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28125536/wound-morbidity-in-minimally-invasive-anterior-component-separation-compared-to-transversus-abdominis-release
#7
Brodie Parent, Dara Horn, Lauren Jacobson, Rebecca P Petersen, Marcelo Hinojosa, Robert Yates, Andrew S Wright, Otway Louie
BACKGROUND: Transversus abdominis release is a novel approach for myofascial advancement in ventral hernia repair and has been hypothesized to have lower rates of wound complication than anterior component separation. METHODS: Patients who had a ventral hernia repair with either transversus abdominis release or minimally invasive anterior component separation from January of 2010 to January of 2016 were enrolled in this retrospective cohort study. Patient characteristics were collected through chart review...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28124988/three-dimensional-measurement-for-specular-reflection-surface-based-on-reflection-component-separation-and-priority-region-filling-theory
#8
Xiaoming Sun, Ye Liu, Xiaoyang Yu, Haibin Wu, Ning Zhang
Due to the strong reflection property of materials with smooth surfaces like ceramic and metal, it will cause saturation and the highlight phenomenon in the image when taking pictures of those materials. In order to solve this problem, a new algorithm which is based on reflection component separation (RCS) and priority region filling theory is designed. Firstly, the specular pixels in the image are found by comparing the pixel parameters. Then, the reflection components are separated and processed. However, for ceramic, metal and other objects with strong specular highlight, RCS theory will change color information of highlight pixels due to larger specular reflection component...
January 23, 2017: Sensors
https://www.readbyqxmd.com/read/28121891/discussion-wound-morbidity-in-minimally-invasive-anterior-component-separation-compared-to-transversus-abdominis-release
#9
Donald P Baumann, Charles E Butler
No abstract text is available yet for this article.
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28060188/prox1-gene-cc-genotype-as-a-major-determinant-of-early-onset-of-type-2-diabetes-in-slavic-study-participants-from-action-in-diabetes-and-vascular-disease-preterax-and-diamicron-mr-controlled-evaluation-study
#10
Pavel Hamet, Mounsif Haloui, François Harvey, François-Christophe Marois-Blanchet, Marie-Pierre Sylvestre, Muhammad-Ramzan Tahir, Paul H G Simon, Beatriz Sonja Kanzki, John Raelson, Carole Long, John Chalmers, Mark Woodward, Michel Marre, Stephen Harrap, Johanne Tremblay
BACKGROUND: The prevalence of diabetic nephropathy varies according to ethnicity. Environmental as well as genetic factors contribute to the heterogeneity in the presentation of diabetic nephropathy. Our objective was to evaluate this heterogeneity within the Caucasian population. METHODS: The geo-ethnic origin of the 3409 genotyped Caucasian type 2 diabetes (T2D) patients of Action in Diabetes and Vascular Disease: Preterax and Diamicron MR Controlled Evaluation was determined using principal component analysis...
January 5, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28044960/transversus-abdominis-muscle-release-tar-for-large-incisional-hernia-repair
#11
Valentin Oprea, Victor Gheorghe Radu, Doru Moga
: Background: complex ventral hernia repair is a frequent and challenging topic. Reconstructive techniques are numerous but most of them are unable to achieve the goals of hernioplasty. Posterior component separation with transverses abdominis muscle release (TAR) is a novel approach that offers a solution for complex ventral hernias. METHOD: The posterior rectus sheath is incised and the retrorectus plane is developed. In a modification of the Rives-Stoppa technique, the transversus abdominis is released medial to the linea semilunaris to expose a broad plane that extends from the central tendon of the diaphragm superiorly, to the space of Retzius inferiorly, and laterally to the retro-peritoneum...
November 2016: Chirurgia
https://www.readbyqxmd.com/read/28039655/the-effect-of-component-separation-technique-on-quality-of-life-qol-and-surgical-outcomes-in-complex-open-ventral-hernia-repair-ovhr
#12
Laurel J Blair, Tiffany C Cox, Ciara R Huntington, Steven A Groene, Tanushree Prasad, Amy E Lincourt, Kent W Kercher, B Todd Heniford, Vedra A Augenstein
INTRODUCTION: Outcomes following OVHR may be affected by type of component separation. In this study, outcomes including QOL of patients undergoing OVHR were evaluated based on the utilization of transversus abdominis release (TAR), posterior rectus sheath release (PRSR) alone or in combination with external oblique release (EOR + PRSR). METHODS: A prospective, single-institution study following open ventral hernia repair involving component separation was performed from May 2005 to April 2015...
December 30, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/28039640/hands-on-2-0-improving-transfer-of-training-via-the-society-of-american-gastrointestinal-and-endoscopic-surgeons-sages-acquisition-of-data-for-outcomes-and-procedure-transfer-adopt-program
#13
Jonathan Dort, Amber Trickey, John Paige, Erin Schwarz, Brian Dunkin
BACKGROUND: Practicing surgeons commonly learn new procedures and techniques by attending a "hands-on" course, though trainings are often ineffective at promoting subsequent procedure adoption in practice. We describe implementation of a new program with the SAGES All Things Hernia Hands-On Course, Acquisition of Data for Outcomes and Procedure Transfer (ADOPT), which employs standardized, proven teaching techniques, and 1-year mentorship. Attendee confidence and procedure adoption are compared between standard and ADOPT programs...
December 30, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/28009730/ventral-hernia-management-expert-consensus-guided-by-systematic-review
#14
Mike K Liang, Julie L Holihan, Kamal Itani, Zeinab M Alawadi, Juan R Flores Gonzalez, Erik P Askenasy, Conrad Ballecer, Hui Sen Chong, Matthew I Goldblatt, Jacob A Greenberg, John A Harvin, Jerrod N Keith, Robert G Martindale, Sean Orenstein, Bryan Richmond, John Scott Roth, Paul Szotek, Shirin Towfigh, Shawn Tsuda, Khashayar Vaziri, David H Berger
OBJECTIVE: To achieve consensus on the best practices in the management of ventral hernias (VH). BACKGROUND: Management patterns for VH are heterogeneous, often with little supporting evidence or correlation with existing evidence. METHODS: A systematic review identified the highest level of evidence available for each topic. A panel of expert hernia-surgeons was assembled. Email questionnaires, evidence review, panel discussion, and iterative voting was performed...
January 2017: Annals of Surgery
https://www.readbyqxmd.com/read/27998146/approximately-800-nm-thick-pinhole-free-perovskite-films-via-facile-solvent-retarding-process-for-efficient-planar-solar-cells
#15
Zhongcheng Yuan, Yingguo Yang, Zhongwei Wu, Sai Bai, Weidong Xu, Tao Song, Xingyu Gao, Feng Gao, Baoquan Sun
Device performance of organometal halide perovskite solar cells significantly depends on the quality and thickness of perovskite absorber films. However, conventional deposition methods often generate pinholes within ∼300 nm-thick perovskite films, which are detrimental to the large area device manufacture. Here we demonstrated a simple solvent retarding process to deposit uniform pinhole free perovskite films with thicknesses up to ∼800 nm. Solvent evaporation during the retarding process facilitated the components separation in the mixed halide perovskite precursors, and hence the final films exhibited pinhole free morphology and large grain sizes...
December 21, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27993696/long-term-outcomes-after-abdominal-wall-reconstruction-with-acellular-dermal-matrix
#16
Patrick B Garvey, Salvatore A Giordano, Donald P Baumann, Jun Liu, Charles E Butler
BACKGROUND: Long-term outcomes data for hernia recurrence rates after abdominal wall reconstruction (AWR) with acellular dermal matrix (ADM) are lacking. The aim of this study was to assess the long-term durability of AWR using ADM. STUDY DESIGN: We studied patients who underwent AWR with ADM at a single center in 2005 to 2015 with a minimum follow-up of 36 months. Hernia recurrence was the primary end point and surgical site occurrence (SSO) was a secondary end point...
March 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/27955703/first-microsatellite-markers-for-paspalum-plicatulum-poaceae-characterization-and-cross-amplification-in-different-paspalum-species-of-the-plicatula-group
#17
Fernanda A Oliveira, Fernanda W Cidade, Alessandra P Fávero, Bianca B Z Vigna, Anete P Souza
BACKGROUND: Paspalum plicatulum is a perennial rhizomatous grass with natural diploid and polyploid cytotypes. It is a member of Plicatula, which has historically been recognized as a highly complex group containing species of ecological, ornamental and forage importance. The complex nature of the P. plicatulum genome makes it a challenging species for genetic research. This study aimed to develop and characterize microsatellite molecular markers in P. plicatulum and to evaluate their transferability to other Plicatula group species...
December 13, 2016: BMC Research Notes
https://www.readbyqxmd.com/read/27915385/substantial-variation-among-hernia-experts-in-the-decision-for-treatment-of-patients-with-incisional-hernia-a-descriptive-study-on-agreement
#18
D Kokotovic, I Gögenur, F Helgstrand
PURPOSE: Benign elective procedures give rise to heterogeneity in indication for surgery and surgical technique among specialized surgeons in a variety of surgical fields. The objective was to analyze the extent of agreement in surgical management among expert hernia surgeons when evaluating the same patient in a standardized setting. METHODS: Five Danish hernia experts answered questions concerning indication for surgery and surgical technique for 25 video recorded real-life clinical cases...
December 3, 2016: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/27908507/usage-of-air-jigging-for-multi-component-separation-of-construction-and-demolition-waste
#19
Weslei Monteiro Ambrós, Carlos Hoffmann Sampaio, Bogdan Grigore Cazacliu, Gerson Luis Miltzarek, Leonardo R Miranda
The use of air jigging for performing multi-component separation in the treatment of mixed construction and demolition waste was studied. Sorting tests were carried out with mixtures of equal bulk volume of concrete and brick in which fixed quantities of unwanted materials - gypsum, wood and paper - were added. Experimental results have demonstrated the possibility to use air jigging to carry out both the removal of low-density contaminants and the concrete concentration in only one process step. In relation to the removal of contaminants only, the overall performance of jigging process can be comparable with that of commercial air classifiers and automatic sorting systems...
November 28, 2016: Waste Management
https://www.readbyqxmd.com/read/27855958/prospective-multi-institutional-surgical-and-quality-of-life-outcomes-comparison-of-heavyweight-midweight-and-lightweight-mesh-in-open-ventral-hernia-repair
#20
Steven A Groene, Tanushree Prasad, Amy E Lincourt, Vedra A Augenstein, Ronald Sing, Brant Todd Heniford
BACKGROUND: Mesh choice in open ventral hernia repair (OVHR) remains controversial. Our aim was to analyze prospective outcomes among heavyweight, midweight, and lightweight (LW) mesh. METHODS: A study of the International Hernia Mesh Registry was performed for OVHR. Operative details, complications, recurrence, and quality of life (QOL) at 1, 6, 12, 24, and 36 months were evaluated. RESULTS: There were 549 OVHRs, 99 using heavyweight, 262 midweight, and 188 LW mesh...
December 2016: American Journal of Surgery
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