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https://www.readbyqxmd.com/read/29036566/the-role-of-alternative-splicing-and-differential-gene-expression-in-cichlid-adaptive-radiation
#1
Pooja Singh, Christine Börger, Heather More, Christian Sturmbauer
Species diverge eco-morphologically through the continuous action of natural selection on functionally important structures, producing alternative adaptive morphologies. In cichlid fishes, the oral and pharyngeal jaws are such key structures. Adaptive variation in jaw morphology contributes to trophic specialisation, which is hypothesised to fuel their rapid speciation in the East African Great Lakes. Much is known about the genes involved in cichlid jaw and craniofacial development. However, it is still unclear what salient sources of variation gave rise to trophic-niche specialisation, facilitating adaptive radiation...
September 27, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29036123/computational-study-of-optical-force-between-two-nanodistant-plasmonic-submicrowires
#2
Masoud Rezvani Jalal, Saba Fathollahi
In this paper, the optical force between two circular plasmonic wires of submicrometer diameter (0.3 μm) with nanometer surface-to-surface distances (3-30 nm) interacting with radiation of a complex point source (λ≈0.2 μm) is numerically studied. Calculations (which are based on the Müller integral equations and the Maxwell stress tensor) show that an attractive optical force with a number of distinct peaks is created in distances 3-10 nm. However, for plasmonic-dielectric and plasmonic-reflector double-wires, the optical force has no such peaks...
July 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29035756/lymph-node-wire-localization-post-chemotherapy-towards-improving-the-false-negative-sentinel-lymph-node-biopsy-rate-in-breast-cancer-patients
#3
Brittany Z Dashevsky, Ashley Altman, Hiroyuki Abe, Nora Jaskowiak, Jean Bao, David V Schacht, Deepa Sheth, Kirti Kulkarni
PURPOSE: To evaluate whether the disease status of the pre-neoadjuvant chemotherapy (NAC) core biopsied lymph node (preNACBxLN) in patients with node positive breast cancer corresponds to nodal status of all surgically retrieved lymph nodes (LNs) post-NAC and whether wire localization of this LN is feasible. MATERIALS AND METHODS: HIPPA compliant IRB approved retrospective study including breast cancer patients (a.) with preNACBxLN confirmed metastases, (b.) who received NAC, and (c...
October 7, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29035275/polynomial-description-of-inhomogeneous-topological-superconducting-wires
#4
Marcos Pérez, Gerardo Martinez
We present universal features of the topological invariant for {\it p}-wave superconducting wires after the inclusion of spatial inhomogeneities. Three classes of distributed potentials are studied, a single-defect, a commensurate and an incommensurate model, using periodic site modulations. An analytic polynomial description is achieved by splitting the topological invariant into two parts, one part depends on the chemical potential and the other does not. For the homogeneous case, an elliptical region is found where the topological invariant oscillates...
October 16, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/29035274/dimension-and-shape-dependent-thermal-transport-in-nano-patterned-thin-films-investigated-by-scanning-thermal-microscopy
#5
Yunfei Ge, Yuan Zhang, Jonathan Weaver, Phillip Dobson
Scanning Thermal Microscopy (SThM) is a technique which is often used for the measurement of the thermal conductivity of materials at the nanometre scale. The impact of nano-scale feature size and shape on apparent thermal conductivity, as measured using scanning thermal microscopy, has been investigated. To achieve this, our recently developed topography-free samples with 200 nm and 400 nm wide gold wires (50 nm thick) of length of 400 - 2500 nm were fabricated and their thermal resistance measured and analyzed...
October 16, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29034487/the-role-of-spontaneous-neurotransmission-in-synapse-and-circuit-development
#6
REVIEW
Laura C Andreae, Juan Burrone
In the past, the spontaneous release of neurotransmitter from presynaptic terminals has been thought of as a side effect of evoked release, with little functional significance. As our understanding of the process of spontaneous release has increased over time, this notion has gradually changed. In this review, we focus on the importance of this form of release during neuronal development, a time of extreme levels of plasticity that includes the growth of dendrites and axons as well as the formation of new synaptic contacts...
October 16, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29034245/handshakes-and-fights-the-regulatory-interplay-of-rna-binding-proteins
#7
REVIEW
Erik Dassi
What drives the flow of signals controlling the outcome of post-transcriptional regulation of gene expression? This regulatory layer, presiding to processes ranging from splicing to mRNA stability and localization, is a key determinant of protein levels and thus cell phenotypes. RNA-binding proteins (RBPs) form a remarkable army of post-transcriptional regulators, strong of more than 1,500 genes implementing this expression fine-tuning plan and implicated in both cell physiology and pathology. RBPs can bind and control a wide array of RNA targets...
2017: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/29034168/quantitative-comparison-of-pzt-and-cmut-probes-for-photoacoustic-imaging-experimental-validation
#8
Maëva Vallet, François Varray, Jérôme Boutet, Jean-Marc Dinten, Giosuè Caliano, Alessandro Stuart Savoia, Didier Vray
Photoacoustic (PA) signals are short ultrasound (US) pulses typically characterized by a single-cycle shape, often referred to as N-shape. The spectral content of such wideband signals ranges from a few hundred kilohertz to several tens of megahertz. Typical reception frequency responses of classical piezoelectric US imaging transducers, based on PZT technology, are not sufficiently broadband to fully preserve the entire information contained in PA signals, which are then filtered, thus limiting PA imaging performance...
December 2017: Photoacoustics
https://www.readbyqxmd.com/read/29033518/a-rare-experience-of-infective-residual-sheath-in-the-wall-of-the-innominate-vein-after-extraction-of-implantable-defibrillators
#9
Yuan-Hao Liu, Wei-Shiang Lin, Yi-Chang Lin, Chih-Yuan Lin, Chien-Sung Tsai, Yi-Ting Tsai
BACKGROUND: Cardiac device-related infective endocarditis is an uncommon but potentially fatal complication. Therefore, cardiac devices should be removed as soon as a device-related infection is suspected. CASE REPORT: A 56-year-old male with a history of arrhythmogenic right ventricular dysplasia with implantable cardioverter-defibrillators (ICDs) 7 years earlier and re-implantation of ICDs due to dysfunction 18 months ago presented with erosion of the ICD pocket with Pseudomonas bacteremia...
July 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/29032901/bosworth-and-modified-phemister-techniques-revisited-a-comparison-of-intraarticular-vs-extraarticular-fixation-methods-in-the-treatment-of-acute-rockwood-type-iii-acromioclavicular-dislocations
#10
Engin Cetinkaya, Yavuz Arıkan, Kubilay Beng, Harun Mutlu, Merter Yalçınkaya, Onat Üzümcügil
OBJECTIVE: The aim of this study was to compare the long-term clinical and radiological results of Acromioclavicular (AC) fixation with K-wires (the modified Phemister procedure) and Coracoclavicular (CC) fixation with the Bosworth screw in the surgical treatment of Type 3 AC joint dislocations. METHODS: Thirty-two patients with complete set of medical records and who received surgical treatment between September 2005 and January 2009 due to acute Rockwood Type 3 AC joint dislocation and properly attended their follow-ups were retrospectively evaluated...
October 9, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29030173/a-novel-miniature-wireless-neurostimulator-in-the-management-of-chronic-craniofacial-pain-preliminary-results-from-a-prospective-pilot-study
#11
Richard L Weiner, Carlos Montes Garcia, Niek Vanquathem
OBJECTIVE: To report a novel wireless neuromodulation system for treatment of refractory craniofacial pain. BACKGROUND: Previous studies utilizing peripheral nerve stimulation (PNS) of the occipital and trigeminal nerves reported positive outcomes for alleviating neuropathic pain localized to the craniofacial and occipital areas. However several technological limitations and cosmetic concerns inhibited a more widespread acceptance and use of neuromodulation. Also, a relatively high incidence of adverse events like electrode erosions, dislocation, wire fracture and/or infection at the surgical site mandates a change in our approach to neuromodulation technology and implant techniques in the craniofacial region...
October 10, 2017: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/29029596/additional-visualization-via-smart-glasses-improves-accuracy-of-wire-insertion-in-fracture-surgery
#12
Masanori Tsubosaka, Takafumi Hiranaka, Kenjiro Okimura, Yuta Nakanishi, Yosaku Shibata, Yuichi Hida, Takaaki Fujishiro, Harunobu Uemoto
BACKGROUND: Smart glasses (SG) are a wearable device consisting of a small computer built into a head-mounted monitor (HMM) that can display various kinds of information. Lateral side visualization is displayed on the HMM of SG so the operator may also see it and the anteroposterior (AP) direction simultaneously. The present pilot study aimed to investigate the usefulness of SG in wire insertion for bone fracture. METHODS: We marked both the front and lateral sides of the shaft of an artificial femur bone...
October 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/29028637/hemorrhagic-shock-after-epicardial-pacing-wire-removal-a-case-report
#13
Paul A Warner, Lindsay L Warner, Alberto Pochettino, Tuhin K Roy
Epicardial pacing wires are routinely used to avoid hemodynamic instability due to perioperative arrhythmias after cardiac surgery. In rare cases, pacing wires themselves can be associated with potentially life-threatening complications. Herein, we present a novel case of hemorrhagic shock and hemoperitoneum after temporary epicardial pacing wire removal.
October 12, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/29028153/tailored-intraoperative-localization-of-non-palpable-pulmonary-lesions-for-thoracoscopic-wedge-resection-using-hybrid-room-technology
#14
Alessia Stanzi, Federico Mazza, Francesco Lucio, Donatella Ghirardo, Maurizio Grosso, Alessandro Locatelli, Giulio Melloni
INTRODUCTION: VATS wedge resection can require conversion to thoracotomy when pulmonary lesions cannot be identified. Hybrid operating rooms (HOR) provide real-time image acquisition capabilities allowing the intraoperative placement of markers, to facilitate the removal of non-palpable nodules during VATS. OBJECTIVES: To present our workflow based on the alternative use of two different markers according to the location of the lung lesion, and report our initial results...
October 13, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29027928/automated-epileptic-seizure-detection-based-on-wearable-ecg-and-ppg-in-a-hospital-environment
#15
Kaat Vandecasteele, Thomas De Cooman, Ying Gu, Evy Cleeren, Kasper Claes, Wim Van Paesschen, Sabine Van Huffel, Borbála Hunyadi
Electrocardiography has added value to automatically detect seizures in temporal lobe epilepsy (TLE) patients. The wired hospital system is not suited for a long-term seizure detection system at home. To address this need, the performance of two wearable devices, based on electrocardiography (ECG) and photoplethysmography (PPG), are compared with hospital ECG using an existing seizure detection algorithm. This algorithm classifies the seizures on the basis of heart rate features, extracted from the heart rate increase...
October 13, 2017: Sensors
https://www.readbyqxmd.com/read/29027317/exposure-to-omentum-adipose-tissue-conditioned-medium-from-obese-pregnant-women-promotes-myometrial-artery-dysfunction
#16
Christina E Hayward, Elizabeth J Cowley, Colin P Sibley, Jenny E Myers, Mark Wareing
AIM: Underlying mechanisms of poor pregnancy outcome in obese (OB) mothers (body mass index [BMI] ≥ 30 kg/m(2) ) are unknown. Our studies demonstrate that OB pregnant women have altered myometrial artery (MA) function related to the thromboxane and nitric oxide pathways. In obesity, increased central fat mass is associated with an altered endocrine milieu. We tested the hypothesis that in OB pregnant women the omentum, a central fat store, releases factors that promote dysfunction in normal MAs...
October 13, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29026823/ivy-loop-wiring-a-useful-form-of-endotracheal-tube-stabilization-in-burn-patients
#17
Matthew W T Curran, Edward E Tredget
The stabilization of endotracheal tubes in the burn population presents many problems. Access to the face for dressings, debridements, and the use of topical antimicrobials prevent adequate stabilization of the endotracheal tube with commonly used methods. Conventional methods have an increased risk of shifting, which can lead to injury to the friable burned tissue or unplanned extubation. To prevent these complications, alternative methods using the dentition to stabilize the endotracheal tube have been described...
August 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29026140/embroidered-copper-microwire-current-collector-for-improved-cycling-performance-of-silicon-anodes-in-lithium-ion-batteries
#18
Ben Breitung, Noemí Aguiló-Aguayo, Thomas Bechtold, Horst Hahn, Jürgen Janek, Torsten Brezesinski
Si holds great promise as an alloying anode material for Li-ion batteries with improved energy density because of its high theoretical specific capacity and favorable operation voltage range. However, the large volume expansion of Si during electrochemical reaction with Li and the associated adverse effects strongly limit its prospect for application. Here, we report on the use of three-dimensional instead of flat current collectors for high-capacity Si anodes in an attempt to mitigate the loss of electrical contact of active electrode regions as a result of structural disintegration with cycling...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29025614/outcome-of-distal-tibia-physeal-fractures-a-review-of-cases-as-related-to-risk-factors
#19
Fabio D'Angelo, Giuseppe Solarino, Davide Tanas, Alessia Zani, Paolo Cherubino, Biagio Moretti
INTRODUCTION: The physeal fractures represent the 20-30% of all fractures of the child. The distal tibial physis is the third most frequently injured. The most important complication is the premature physeal closure (PPC). Aim of this study is to evaluate risk factors that can influence the outcome like fracture pattern, fracture displacement, mechanism of injury and treatment method. MATERIAL AND METHODS: The records of 46 patients treated for distal tibia physeal fractures between 2003 and 2013 were reviewed...
October 2017: Injury
https://www.readbyqxmd.com/read/29024745/correlation-between-extension-block-k-wire-insertion-angle-and-postoperative-extension-loss-in-mallet-finger-fracture
#20
S K Lee, Y H Kim, K H Moon, W S Choy
INTRODUCTION: Extension-block pinning represents a simple and reliable surgical technique. Although this procedure is commonly performed successfully, some patients develop postoperative extension loss. To date, the relationship between extension-block Kirschner wire (K-wire) insertion angle and postoperative extension loss in mallet finger fracture remains unclear. HYPOTHESIS: We aimed to clarify this relationship and further evaluate how various operative and non-operative factors affect postoperative extension loss after extension-block pinning for mallet finger fracture...
October 9, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
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