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https://www.readbyqxmd.com/read/28343931/coronal-and-intraradicular-appearances-affect-radiographic-perception-of-the-periapical-region
#1
Julie W Strong, Karl F Woodmansey, John A Khademi, John F Hatton
INTRODUCTION: The influence of the radiographic appearances of the coronal and intraradicular areas on periapical radiographic interpretation has been minimally evaluated in dentistry and endodontics. The purpose of this study was to evaluate the effects that the coronal and intraradicular radiographic appearance has on endodontists' radiographic interpretations of periapical areas. METHODS: In a split-group study design using an online survey format, 2 pairs of digital periapical radiographic images were evaluated by 2 groups (A and B) of endodontist readers for the presence of a periapical finding...
March 23, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28343096/sd-sem-sparse-dense-correspondence-for-3d-reconstruction-of-microscopic-samples
#2
Ahmadreza Baghaie, Ahmad P Tafti, Heather A Owen, Roshan M D'Souza, Zeyun Yu
Scanning electron microscopy (SEM) imaging has been a principal component of many studies in biomedical, mechanical, and materials sciences since its emergence. Despite the high resolution of captured images, they remain two-dimensional (2D). In this work, a novel framework using sparse-dense correspondence is introduced and investigated for 3D reconstruction of stereo SEM images. SEM micrographs from microscopic samples are captured by tilting the specimen stage by a known angle. The pair of SEM micrographs is then rectified using sparse scale invariant feature transform (SIFT) features/descriptors and a contrario RANSAC for matching outlier removal to ensure a gross horizontal displacement between corresponding points...
March 20, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28342382/words-cluster-phonetically-beyond-phonotactic-regularities
#3
Isabelle Dautriche, Kyle Mahowald, Edward Gibson, Anne Christophe, Steven T Piantadosi
Recent evidence suggests that cognitive pressures associated with language acquisition and use could affect the organization of the lexicon. On one hand, consistent with noisy channel models of language (e.g., Levy, 2008), the phonological distance between wordforms should be maximized to avoid perceptual confusability (a pressure for dispersion). On the other hand, a lexicon with high phonological regularity would be simpler to learn, remember and produce (e.g., Monaghan et al., 2011) (a pressure for clumpiness)...
March 22, 2017: Cognition
https://www.readbyqxmd.com/read/28341950/frontal-changes-in-the-lower-face-after-clockwise-rotation-of-the-maxillomandibular-complex-without-perisurgical-orthodontic-treatment-in-angle-class-i-and-skeletal-class-iii-women
#4
Sang Woo Lee, Jeongmok Cho, Kikap Kim, Seung Hyun Ahn
BACKGROUND: Orthognathic surgery has become more popular to slenderize a wide lower face and to improve facial esthetics in Asian patients with normal occlusion. Clockwise rotation (CR) of the maxillomandibular complex (MMC) steepens the mandibular plane. This study performed a quantitative analysis on the influence of CR on slenderness of the lower face from the frontal view. PATIENTS AND METHODS: This retrospective study included 36 female patients with Angle Class I occlusion and skeletal Class III pattern...
March 24, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28340429/simple-index-of-functional-connectivity-at-rest-in-multiple-sclerosis-fatigue
#5
Korhan Buyukturkoglu, Camillo Porcaro, Carlo Cottone, Andrea Cancelli, Matilde Inglese, Franca Tecchio
OBJECTIVE: To investigate the EEG-derived functional connectivity at rest (FCR) patterns of fatigued Multiple Sclerosis (MS) patients in order to find good parameters for a future EEG-Neurofeedback intervention to reduce their fatigue symptoms. METHODS: We evaluated FCR between hemispheric homologous areas, via spectral coherence between pairs of corresponding left and right bipolar derivations, in the Theta, Alpha and Beta bands. We estimated FCR in 18MS patients with different levels of fatigue and minimal clinical severity and in 11 age and gender matched healthy controls...
February 28, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28333921/bioenergetics-based-modeling-of-plasmodium-falciparum-metabolism-reveals-its-essential-genes-nutritional-requirements-and-thermodynamic-bottlenecks
#6
Anush Chiappino-Pepe, Stepan Tymoshenko, Meriç Ataman, Dominique Soldati-Favre, Vassily Hatzimanikatis
Novel antimalarial therapies are urgently needed for the fight against drug-resistant parasites. The metabolism of malaria parasites in infected cells is an attractive source of drug targets but is rather complex. Computational methods can handle this complexity and allow integrative analyses of cell metabolism. In this study, we present a genome-scale metabolic model (iPfa) of the deadliest malaria parasite, Plasmodium falciparum, and its thermodynamics-based flux analysis (TFA). Using previous absolute concentration data of the intraerythrocytic parasite, we applied TFA to iPfa and predicted up to 63 essential genes and 26 essential pairs of genes...
March 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28329213/postoperative-pulmonary-complications-and-rehabilitation-requirements-following-lobectomy-a-propensity-score-matched-study-of-patients-undergoing-video-assisted-thoracoscopic-surgery-versus-thoracotomy%C3%A2
#7
Paula Agostini, Sebastian T Lugg, Kerry Adams, Nelia Vartsaba, Maninder S Kalkat, Pala B Rajesh, Richard S Steyn, Babu Naidu, Alison Rushton, Ehab Bishay
OBJECTIVES: : Video-assisted thoracoscopic surgical (VATS) lobectomy is increasingly used for curative intent lung cancer surgery compared to open thoracotomy due to its minimally invasive approach and associated benefits. However, the effects of the VATS approach on postoperative pulmonary complications (PPC), rehabilitation and physiotherapy requirements are unclear; our study aimed to use propensity score matching to investigate this. METHODS: Between January 2012 and January 2016 all consecutive patients undergoing lobectomy via thoracotomy or VATS were prospectively observed...
March 8, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329198/long-term-serial-non-invasive-multislice-computed-tomography-angiography-with-functional-evaluation-after-coronary-implantation-of-a-bioresorbable-everolimus-eluting-scaffold-the-absorb-cohort-b-msct-substudy
#8
Yoshinobu Onuma, Carlos Collet, Robert-Jan van Geuns, Bernard de Bruyne, Evald Christiansen, Jacques Koolen, Pieter Smits, Bernard Chevalier, Dougal McClean, Dariusz Dudek, Stephan Windecker, Ian Meredith, Koen Nieman, Susan Veldhof, John Ormiston, Patrick W Serruys
Aims: Multimodality invasive imaging of the first-in-man cohort demonstrated at 5 years stable lumen dimensions and a low rate of major adverse cardiac events (MACE). However, the long-term non-invasive assessment of this device remains to be documented. The objective was to describe the 72-month multislice computed tomography (MSCT) angiographic and functional findings after the implantation of the second iteration of the fully resorbable everolimus-eluting polymeric scaffold. Methods and results: In the ABSORB Cohort B trial patients with non-complex de novo lesions were treated with second iteration bioresobable vascular scaffold (BVS)...
March 16, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28328039/reduction-of-metal-adducts-in-oligonucleotide-mass-spectra-in-ion-pair-reversed-phase-chromatography-mass-spectrometry-analysis
#9
Robert E Birdsall, Martin Gilar, Henry Shion, Ying Qing Yu, Weibin Chen
RATIONALE: Electrospray ionization mass spectrometry (ESI-MS)-based techniques commonly used in oligonucleotide analyses are known to be sensitive to alkali metal adduct formation. Adducts directly impact the sensitivity of MS-based analyses as the available charge is distributed across the parent peak and adduct(s). The current study systematically evaluated common liquid chromatography (LC) components in LC/ESI-MS configurations used in oligonucleotide analysis to identify metal adduct contributions from LC instrumentation...
July 30, 2016: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28327909/clinical-outcomes-following-surgical-management-of-coexisting-parkinson-disease-and-cervical-spondylotic-myelopathy
#10
Roy Xiao, Jacob A Miller, Daniel Lubelski, Thomas E Mroz, Edward C Benzel, Ajit A Krishnaney, Andre Machado
BACKGROUND: Distinguishing the causes of weakness and gait instability in patients with Parkinson disease (PD) and cervical spondylotic myelopathy (CSM) is a diagnostic and therapeutic challenge due to symptomatic similarities. No study has reported outcomes following decompression in patients with PD and CSM. OBJECTIVE: To report outcomes following cervical decompression for patients with coexisting PD and CSM. METHODS: A retrospective matched cohort study of all patients with PD and CSM undergoing cervical decompression at a tertiary-care center between January 1996 and December 2014 was conducted...
February 2, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28327443/correcting-delayed-circadian-phase-with-bright-light-therapy-predicts-improvement-in-adhd-symptoms-a-pilot-study
#11
Rachel E Fargason, Aaron D Fobian, Lauren M Hablitz, Jodi R Paul, Brittny A White, Karen L Cropsey, Karen L Gamble
Attention-deficit/hyperactivity disorder (ADHD) is a common condition with comorbid insomnia reported in >70% of children and adults. These patients demonstrate delays in sleep-wake rhythms, nocturnal rise in melatonin, and early morning rise in cortisol. Given that standard psychopharmacologic treatments for ADHD often do not completely control symptoms in participants with circadian rhythm delay, we sought to test whether bright light therapy (BLT) advances circadian rhythms and further reduces ADHD symptoms over standard treatments...
March 6, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28327121/bap1-and-pbrm1-in-metastatic-clear-cell-renal-cell-carcinoma-tumor-heterogeneity-and-concordance-with-paired-primary-tumor
#12
Jeanette E Eckel-Passow, Daniel J Serie, John C Cheville, Thai H Ho, Payal Kapur, James Brugarolas, R Houston Thompson, Bradley C Leibovich, Eugene D Kwon, Richard W Joseph, Alexander S Parker
BACKGROUND: BAP1 and PBRM1 are frequently mutated in primary clear cell renal cell carcinoma (ccRCC) tumors; however, the frequency and clinical relevance of these mutations in metastatic ccRCC tumors is unknown. Additionally, while intra-tumor heterogeneity has been shown to be common in primary ccRCC, little is known regarding heterogeneity in metastatic ccRCC tumors. MATERIALS AND METHODS: We analyzed BAP1 and PBRM1 loss of protein expression in patient-matched primary and metastatic tumors from 97 patients...
March 21, 2017: BMC Urology
https://www.readbyqxmd.com/read/28326994/effects-of-lexical-competition-and-dialect-exposure-on-phonological-priming
#13
Cynthia G Clopper, Abby Walker
A cross-modal lexical decision task was used to explore the effects of lexical competition and dialect exposure on phonological form priming. Relative to unrelated auditory primes, matching real word primes facilitated lexical decision for visual real word targets, whereas competing minimal pair primes inhibited lexical decision. These effects were robust across two English vowel pairs (mid-front and low-front) and for two listener groups (mono-dialectal and multi-dialectal). However, both the most robust facilitation and the most robust inhibition were observed for the mid-front vowel words with few phonological competitors for the mono-dialectal listener group...
March 2017: Language and Speech
https://www.readbyqxmd.com/read/28323148/results-of-combined-resection-recession-on-a-single-rectus-muscle-for-incomitant-deviations-an-alternative-to-the-faden-technique
#14
Gill Roper-Hall, Oscar A Cruz
PURPOSE: To compare outcomes of combined resection and recession on previously unoperated single horizontal or vertical rectus muscles in consecutive adult patients with acquired incomitant deviations minimal in primary gaze and maximal in an eccentric gaze position. METHODS: The surgical goal was to decrease the incomitance by 50%, expand the field of binocular single vision, and relieve diplopia. Recessions for the maximal deviations were combined with smaller resections using hang-back, nonadjustable sutures...
March 16, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28321984/reciprocity-to-increase-participation-of-compatible-living-donor-and-recipient-pairs-in-kidney-paired-donation
#15
John S Gill, Kathryn Tinckam, Marie Chantal Fortin, Caren Rose, Kara Shick-Makaroff, Kimberly Young, Julie Lesage, Edward H Cole, Maeghan Toews, David N Landsberg, Jagbir Gill
Inclusion of compatible living donor and recipient pairs (CPs) in kidney paired donation (KPD) programs could increase living donor transplantation. We introduce the concept of a reciprocity based strategy in which the recipient of a CP that participates in KPD receives priority for a repeat deceased donor transplant in the event their primary living donor KPD transplant fails, and review the practical and ethical considerations of this strategy. The strategy limits prioritization to CPs already committed to living donation, minimizing the risk of unduly influencing donor behavior...
March 21, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28320724/piperacillin-tazobactam-versus-other-antibacterial-agents-for-treatment-of-bloodstream-infections-due-to-ampc-beta-lactamase-producing-enterobacteriaceae
#16
Lucy Cheng, Brian C Nelson, Monica Mehta, Nikhil Seval, Sarah Park, Marla J Giddins, Qiuhu Shi, Susan Whittier, Angela Gomez-Simmonds, Anne-Catrin Uhlemann
In vivo induction of AmpC beta-lactamases produces high-level resistance to many beta-lactam antibiotics in Enterobacteriaceae, often resulting in the use of carbapenems or cefepime (FEP). The clinical effectiveness of piperacillin-tazobactam (TZP), a weak inducer of AmpC beta-lactamases, is poorly understood. Here we conducted a case-control study of adult inpatients with bloodstream infections (BSIs) due to Enterobacter, Serratia, or Citrobacter spp. from 2009 to 2015 to assess outcomes following treatment with TZP compared to FEP or meropenem (MEM)...
March 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28320653/robust-timing-calibration-for-pet-using-l1-norm-minimization
#17
David Freese, David Hsu, Derek Innes, Craig Levin
Positron Emission Tomography (PET) relies on accurate timing information to pair two 511 keV photons into a coincidence event. Calibration of time delays between detectors becomes increasingly important as the timing resolution of detector technology improves, as calibration error can quickly become a dominant source of error. Previous work has shown the maximum likelihood estimate of these delays can be calculated by least squares estimation, but that approach is not tractable for complex systems and degrades in the presence of randoms...
March 13, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28303848/triazole-resistance-in-aspergillus-fumigatus-clinical-isolates-obtained-in-nanjing-china
#18
Ming Zhang, Chun-Lai Feng, Fei Chen, Qian He, Xin Su, Yi Shi
BACKGROUND: During the past decades, the incidence of invasive aspergillosis (IA) caused by Aspergillus fumigatus has increased dramatically. The aims of this study were to investigate the susceptibility of clinical isolates of A. fumigatus to triazole and the underlying cyp51A mutations in triazole-resistant A. fumigatus. METHODS: A total of 126 A. fumigatus clinical isolates from 126 patients with proven or probable IA were obtained from four large tertiary hospitals in Nanjing, China, between August 2012 and July 2015...
March 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28303293/is-it-time-for-a-specific-undergraduate-interventional-radiology-curriculum
#19
Zaid Alsafi, Vamsee Bhrugubanda, Sanjeev Ramachandran, Ali Alsafi, Mohamad Hamady
PURPOSE: Interventional radiology (IR) is traditionally underrepresented in undergraduate medical curricula. Final-year medical students ought to be familiar with some common IR procedures in order to make adequate referrals and work-up patients appropriately. We evaluated the knowledge of final-year medical students on common IR procedures and compared it with their knowledge of other specialties. MATERIALS AND METHODS: A fourteen-question, single-best-answer questionnaire assessing the knowledge of IR procedures and other minimally invasive non-IR procedures was administered to a group of final-year medical students...
March 16, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28302426/proximity-of-lateral-critical-structures-to-the-all-epiphyseal-outside-in-femoral-tunnels-in-pediatric-anterior-cruciate-ligament-reconstruction
#20
Mark K Lane, Jennifer Mutch, Kaitlyn Ratkowiak, Stephen E Lemos, Kunal Kalra
PURPOSE: To describe the proximity of the lateral critical structures (peroneal nerve [PN], popliteus tendon [PT], lateral collateral ligament [LCL], and articular cartilage [AC]) to the femoral tunnel for outside-in all-epiphyseal anterior cruciate ligament (ACL) reconstruction in reference to knee flexion angle. METHODS: All-epiphyseal ACL reconstructions were performed in 12 human cadaveric knees using arthroscopy and outside-in drilling for anatomic femoral tunnel placement that was ensured by identifying the center of the total ACL footprint...
March 13, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
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