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https://www.readbyqxmd.com/read/29452313/does-the-iliac-wing-influence-l5-pedicle-screw-fixation
#1
Hai-Ming Jin, Xue-Qin Bai, Xiang-Xiang Pan, Jianwei Wu, Cong-Cong Wu, Ying-Zhao Yan, Ke Wang, Ai-Ming Wu, Xiang-Yang Wang
OBJECTIVE: To explore whether the iliac wing influenced L5 PS fixation and to propose methods to reduce such influence. METHODS: A total of 100 computed tomography scans (from 50 males and 50 females) of the lower lumbar region and pelvis were obtained and three-dimensionally reconstructed. Cylinders with 6.5-mm diameters were drawn to simulate the different trajectories of L5 PSs. The maximum lengths and lateral angles of trajectories, and the vertical distances from the inner edge of the iliac wing to these trajectories, were measured...
February 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29452203/morphology-of-the-elytral-base-sclerites
#2
Miwa Sugimoto, Naoki Ogawa, Kazunori Yoshizawa
The elytral base sclerites (= sclerites located at the articular region between the forewing and thorax in Coleoptera) of selected taxa were examined and homologized. Although the elytral base sclerites are highly modified compared to the wing base sclerites of the other neopterans, they can be homologized by using the conservative wing flapping and folding lines as landmarks. A reduction of the first axillary sclerite was identified as a general trend of the elytral base sclerites, although the sclerite usually has a very important function to mediate flight power from the notum to the wing...
February 13, 2018: Arthropod Structure & Development
https://www.readbyqxmd.com/read/29451395/determining-the-consistency-of-resolved-triplets-and-fan-triplets
#3
Jesper Jansson, Andrzej Lingas, Ramesh Rajaby, Wing-Kin Sung
The [Formula: see text] Consistency problem takes as input two sets [Formula: see text] and [Formula: see text] of resolved triplets and two sets [Formula: see text] and [Formula: see text] of fan triplets, and asks for a distinctly leaf-labeled tree that contains all elements in [Formula: see text] and no elements in [Formula: see text] as embedded subtrees, if such a tree exists. This article presents a detailed characterization of how the computational complexity of the problem changes under various restrictions...
February 16, 2018: Journal of Computational Biology: a Journal of Computational Molecular Cell Biology
https://www.readbyqxmd.com/read/29451360/defining-optimal-surgical-treatment-for-recurrent-hepatocellular-carcinoma-a-propensity-score-matched-analysis
#4
Ka Wing Ma, Kenneth S H Chok, Brian Wong Hoi She, Albert Chi Yan Chan, Tan To Cheung, Jeff Wing Chiu Dai, James Yan Yue Fung, Chung Mau Lo
No abstract text is available yet for this article.
February 16, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29451170/eus-fna-using-22g-nitinol-or-procore-needles-without-on-site-cytopathology
#5
Charing Ching Ning Chong, Anthony Yuen Bun Teoh, Raymond Shing Yan Tang, Anthony Wing Hung Chan, Enders Kwok Wai Ng, Paul Bo San Lai
Objectives: The project is aimed to compare the tissue sampling rate and the diagnostic accuracy rate of EUS-FNA using 22G nitinol and reverse bevel-tipped needles. Subjects and Methods: This was a prospective, randomized, crossover study in a tertiary academic hospital. All consecutive adult patients undergoing EUS-guided FNA for lesions > 2 cm were recruited. Patients fulfilling the inclusion and exclusion criteria underwent EUS-guided FNA using both needles in sequence...
January 2018: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/29450902/identification-and-expression-profiles-of-novel-odorant-binding-proteins-and-functional-analysis-of-obp99a-in-bactrocera-dorsalis
#6
Jing Zhang, Deye Luo, Peng Wu, Haozhe Li, Hongyu Zhang, Weiwei Zheng
Odorant-binding proteins (OBPs) in insects are essential for mating and oviposition host selection. How these OBPs respond to different hosts at the mRNA level and their effects on behavior remain poorly characterized. The oriental fruit fly Bactrocera dorsalis is a highly invasive agricultural pest with an extremely broad host range and high fecundity. Based on our previously constructed B. dorsalis transcriptome, six OBPs that were differentially expressed during three different physiological adult stages were identified...
February 16, 2018: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/29450868/hepatocholangiocarcinoma-intrahepatic-cholangiocarcinoma-are-they-contraindication-or-indication-for-liver-transplantation-a-propensity-score-matched-analysis
#7
Ka Wing Ma, Kenneth Siu Ho Chok, Wong Hoi She, Tan To Cheung, Albert Chi Yan Chan, Wing Chiu Dai, James Yan Yue Fung, Chung Mau Lo
BACKGROUND: Uncommon primary hepatic malignancies such as intrahepatic cholangiocarcinoma (ICC) and hepatocholangiocarcinoma (HCC-CC) were generally considered contraindications for liver transplantation(LT), and studies comparing the efficacy of LT and resection (LR) for ICC/HCC-CC were scarce. OBJECTIVE: To compare the survival outcomes of ICC/HCC-CC patients treated by LT and LR in a propensity score-matched population. METHOD: This is a retrospective study from 1995 to 2015...
February 15, 2018: Hepatology International
https://www.readbyqxmd.com/read/29450618/influence-of-membrane-fatty-acid-composition-and-fluidity-on-airborne-survival-of-escherichia-coli
#8
Tsz Wai Ng, Wing Lam Chan, Ka Man Lai
Finding ways to predict and control the survival of bacterial aerosols can contribute to the development of ways to alleviate a number of crucial microbiological problems. Significant damage in the membrane integrity of Escherichia coli during aerosolization and airborne suspension has been revealed which has prompted the question of how the membrane fatty acid composition and fluidity influence the survival of airborne bacteria. Two approaches of using isogenic mutants and different growth temperatures were selected to manipulate the membrane fatty acid composition of E...
February 15, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29449754/behavioural-and-physiological-responses-of-laying-hens-to-automated-monitoring-equipment
#9
Stephanie Buijs, Francesca Booth, Gemma Richards, Laura McGaughey, Christine J Nicol, Joanne Edgar, John F Tarlton
Automated monitoring of behaviour can offer a wealth of information in circumstances where observing behaviour is difficult or time consuming. However, this often requires attaching monitoring devices to the animal which can alter behaviour, potentially invalidating any data collected. Birds often show increased preening and energy expenditure when wearing devices and, especially in laying hens, there is a risk that individuals wearing devices will attract aggression from conspecifics. We studied the behavioural and physiological response of 20 laying hens to backpacks containing monitoring devices fastened with elastic loops around the wing base...
February 2018: Applied Animal Behaviour Science
https://www.readbyqxmd.com/read/29449682/anatomic-and-terminological-description-and-processing-of-breast-pathologic-specimens-from-oncoplastic-large-volume-displacement-surgeries
#10
REVIEW
Yuanxin Liang, Stephen P Naber, Abhishek Chatterjee
Oncoplastic surgery provides breast cancer patients with greater aesthetic satisfaction without compromising disease-free survival or overall survival rate. Large volume displacement oncoplastic surgical techniques have become increasingly popular as a strategy for improving aesthetic outcomes and extending the option of breast conservation therapy. They often involve breast reduction or mastopexy reconstructive techniques to facilitate resection of large breast volumes on the side of the breast cancer and accompanied with symmetry contralateral breast reductions or mastopexies...
February 15, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29447826/impact-of-age-on-the-anatomy-of-the-pediatric-pterygopalatine-fossa-and-its-relationship-to-the-suprazygomatic-maxillary-nerve-block
#11
Alexander P Marston, Glenn Merritt, Jonathan M Morris, Shelagh A Cofer
OBJECTIVES: The suprazygomatic maxillary nerve block is associated with improved post-operative pain management after select craniofacial surgical procedures. This study's objective is to better define the impact of pediatric facial skeletal growth on techniques for accessing the pterygopalatine fossa (PPF). METHODS: Pediatric patients with prior thin-slice maxillofacial computed tomography imaging were identified in an institutional radiology database. Aquarius image-processing software (Ver...
February 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29447394/human-la-binds-mrnas-through-contacts-to-the-poly-a-tail
#12
Jyotsna Vinayak, Stefano A Marrella, Rawaa H Hussain, Leonid Rozenfeld, Karine Solomon, Mark A Bayfield
In addition to a role in the processing of nascent RNA polymerase III transcripts, La proteins are also associated with promoting cap-independent translation from the internal ribosome entry sites of numerous cellular and viral coding RNAs. La binding to RNA polymerase III transcripts via their common UUU-3'OH motif is well characterized, but the mechanism of La binding to coding RNAs is poorly understood. Using electromobility shift assays and cross-linking immunoprecipitation, we show that in addition to a sequence specific UUU-3'OH binding mode, human La exhibits a sequence specific and length dependent poly(A) binding mode...
February 13, 2018: Nucleic Acids Research
https://www.readbyqxmd.com/read/29447117/on-the-high-lift-characteristics-of-a-bio-inspired-slotted-delta-wing
#13
Kaley Ann Sheppard, David Emory Rival
A bio-inspired, slotted delta wing was abstracted from a multi-vane propulsor geometry ubiquitous in nature, and analysed to investigate aerodynamic performance during acceleratory and steady-state motions. Evolutionary convergence of slotted geometries in nature suggests an aerodynamic benefit in manoeuvrability, as exemplified in the fins and wings of a broad range of extant and extinct swimmers and flyers, respectively. Through direct force measurements and stereoscopic particle image velocimetry, it was found that the abstracted, slotted geometry exhibited a region of steady-state lift and drag enhancement at angles of attack greater than 25° when compared to a reference profile based on a delta-wing plate...
February 15, 2018: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/29445354/effects-of-acupuncture-on-the-recovery-outcomes-of-stroke-survivors-with-shoulder-pain-a-systematic-review
#14
Janita Pak Chun Chau, Suzanne Hoi Shan Lo, Xingfeng Yu, Kai Chow Choi, Alexander Yuk Lun Lau, Justin Che Yuen Wu, Vivian Wing Yan Lee, William Hoi Ngai Cheung, Jessica Yuet Ling Ching, David R Thompson
Background: Poststroke shoulder pain limits stroke survivors' physical functioning, impairs their ability to perform daily activities, and compromises their quality of life. The use of acupuncture to manage shoulder pain after a stroke is believed to free the blockage of energy flow and produce analgesic effects, but the evidence is unclear. We therefore conducted a systematic review to summarize the current evidence on the effects of acupuncture on the recovery outcomes of stroke survivors with shoulder pain...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29445043/vestigial-singing-behaviour-persists-after-the-evolutionary-loss-of-song-in-crickets
#15
Will T Schneider, Christian Rutz, Berthold Hedwig, Nathan W Bailey
The evolutionary loss of sexual traits is widely predicted. Because sexual signals can arise from the coupling of specialized motor activity with morphological structures, disruption to a single component could lead to overall loss of function. Opportunities to observe this process and characterize any remaining signal components are rare, but could provide insight into the mechanisms, indirect costs and evolutionary consequences of signal loss. We investigated the recent evolutionary loss of a long-range acoustic sexual signal in the Hawaiian field cricket Teleogryllus oceanicus Flatwing males carry mutations that remove sound-producing wing structures, eliminating all acoustic signalling and affording protection against an acoustically-orientating parasitoid fly...
February 2018: Biology Letters
https://www.readbyqxmd.com/read/29445037/on-the-diverse-roles-of-fluid-dynamic-drag-in-animal-swimming-and-flying
#16
REVIEW
R Godoy-Diana, B Thiria
Questions of energy dissipation or friction appear immediately when addressing the problem of a body moving in a fluid. For the most simple problems, involving a constant steady propulsive force on the body, a straightforward relation can be established balancing this driving force with a skin friction or form drag, depending on the Reynolds number and body geometry. This elementary relation closes the full dynamical problem and sets, for instance, average cruising velocity or energy cost. In the case of finite-sized and time-deformable bodies though, such as flapping flyers or undulatory swimmers, the comprehension of driving/dissipation interactions is not straightforward...
February 2018: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29444377/a-biomechanical-analysis-of-prognathous-and-orthognathous-insect-head-capsules-evidence-for-a-many-to-one-mapping-of-ridge-strain-to-head-strain
#17
Alexander Blanke, Manuel Pinheiro, Peter J Watson, Michael J Fagan
Insect head shapes are remarkably variable but the influences of these changes on biomechanical performance are unclear. Among "basal" winged insects, such as dragonflies, mayflies, earwigs, and stoneflies, some of the most prominent anatomical changes are the general mouthpart orientation, eye size and the connection of the endoskeleton to the head. Here, we assess these variations as well as differing ridge and sclerite configurations using modern engineering methods including multibody dynamics modelling and finite element analysis in order to quantify and compare the influence of anatomical changes on strain in particular head regions and the whole head...
February 14, 2018: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/29444167/rotavirus-vaccine-coverage-and-factors-associated-with-uptake-using-linked-data-ontario-canada
#18
Sarah E Wilson, Hannah Chung, Kevin L Schwartz, Astrid Guttmann, Shelley L Deeks, Jeffrey C Kwong, Natasha S Crowcroft, Laura Wing, Karen Tu
BACKGROUND: In August 2011, Ontario, Canada introduced a rotavirus immunization program using Rotarix™ vaccine. No assessments of rotavirus vaccine coverage have been previously conducted in Ontario. METHODS: We assessed vaccine coverage (series initiation and completion) and factors associated with uptake using the Electronic Medical Record Administrative data Linked Database (EMRALD), a collection of family physician electronic medical records (EMR) linked to health administrative data...
2018: PloS One
https://www.readbyqxmd.com/read/29443920/gradient-type-magnetoelectric-current-sensor-with-strong-multisource-noise-suppression
#19
Mingji Zhang, Siu Wing Or
A novel gradient-type magnetoelectric (ME) current sensor operating in magnetic field gradient (MFG) detection and conversion mode is developed based on a pair of ME composites that have a back-to-back capacitor configuration under a baseline separation and a magnetic biasing in an electrically-shielded and mechanically-enclosed housing. The physics behind the current sensing process is the product effect of the current-induced MFG effect associated with vortex magnetic fields of current-carrying cables (i...
February 14, 2018: Sensors
https://www.readbyqxmd.com/read/29443109/methods-for-staging-pupal-periods-and-measurement-of-wing-pigmentation-of-drosophila-guttifera
#20
Yuichi Fukutomi, Keiji Matsumoto, Noriko Funayama, Shigeyuki Koshikawa
Diversified species of Drosophila (fruit fly) provide opportunities to study mechanisms of development and genetic changes responsible for evolutionary changes. In particular, the adult stage is a rich source of morphological traits for interspecific comparison, including wing pigmentation comparison. To study developmental differences among species, detailed observation and appropriate staging are required for precise comparison. Here we describe protocols for staging of pupal periods and quantification of wing pigmentation in a polka-dotted fruit fly, Drosophila guttifera...
January 24, 2018: Journal of Visualized Experiments: JoVE
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