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Transverse patterning

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https://www.readbyqxmd.com/read/29140716/transversely-divergent-second-harmonic-generation-by-surface-plasmon-polaritons-on-single-metallic-nanowires
#1
Yang Li, Meng Kang, Junjun Shi, Ke Wu, Shunping Zhang, Hongxing Xu
Coherently adding up signal wave from different locations are a prerequisite for realizing efficient nonlinear optical processes in traditional optical configurations. While nonlinear optical processes in plasmonic waveguides with subwavelength light confinement are in principle desirable for enhancing nonlinear effects, so far it has been difficult to improve the efficiency due to the large momentum mismatch. Here we demonstrate, using remotely excited surface plasmon polaritons (SPPs), axial collimated but transversely divengent second harmonic (SH) generation in a single silver nanowire - monolayer molybdenum disulfide hybrid system...
November 15, 2017: Nano Letters
https://www.readbyqxmd.com/read/29133297/evaluating-the-triplet-hypothesis-during-rhythmic-mastication-in-primates
#2
Yashesvini Ram, Callum F Ross
Mammalian mastication involves precise jaw movements including transverse movement of the mandible during the power stroke. Jaw elevation and transverse movement are driven by asymmetrical jaw elevator muscle activity which is thought to include a phylogenetically primitive and conserved triplet motor pattern consisting of: triplet I-balancing side superficial masseter and medial pterygoid, working side posterior temporalis- which reaches onset, peak, and offset first; and triplet II-working side superficial masseter and medial pterygoid, balancing side posterior temporalis-which is active second...
November 13, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29119273/immunohistochemical-distribution-of-ki67-in-epidermis-of-thick-glabrous-skin-of-human-digits
#3
Aleksandar Petrovic, Vladimir Petrovic, Bobana Milojkovic, Ivan Nikolic, Dragan Jovanovic, Aleksandra Antovic, Miroslav Milic
The glabrous skin on the flexor sides of hands and feet, compared to other integument regions, has thicker epidermis and more complex pattern of epidermal ridges, wherefore in microscopy is denominated as thick skin. The epidermis of this skin type has individually unique and permanent superficial patterns, called dermatoglyphics, which are maintained by regenerative potential of deep epidermal rete ridges, that interdigitate with adjacent dermis. Using light microscopy, we analyzed cadaveric big toes thick skin samples, described histology of deep epidermal ridges (intermediate, limiting, and transverse), and quantitatively evidenced their pattern of proliferation by immunohistochemical assessment of Ki67...
November 8, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/29107714/nonspatial-sequence-coding-varies-along-the-ca1-transverse-axis
#4
Chi-Wing Ng, Gabriel A Elias, Judith S A Asem, Timothy A Allen, Norbert J Fortin
The hippocampus plays a critical role in the memory for sequences of events, a defining feature of episodic memory. To shed light on the fundamental mechanisms supporting this capacity, we recently recorded neural activity in CA1 as rats performed a nonspatial odor sequence memory task. Our main finding was that, while the animals' location and behavior remained constant, a proportion of CA1 neurons fired differentially to odors depending on whether they were presented in or out of sequence (sequence cells)...
October 28, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29106739/evaluation-of-tomotherapy-dose-calculations-with-intra-fractional-motion-and-motion-compensation
#5
Edward H Chao, Daniel Lucas, Eric Schnarr
PURPOSE: Anatomical motion, both cyclical and aperiodic, can impact the dose delivered during external beam radiation. In this work, we evaluate the use of a research version of the clinical TomoTherapy(®) dose calculator to calculate dose with intra-fraction rigid motion. We also evaluate the feasibility of a method of motion compensation for helical tomotherapy using the jaws and MLC. METHODS: Treatment plans were created using the TomoTherapy treatment planning system...
November 6, 2017: Medical Physics
https://www.readbyqxmd.com/read/29105381/early-gestational-hypoxia-and-adverse-developmental-outcomes
#6
REVIEW
Helen E Ritchie, Diana J Oakes, Debra Kennedy, Jaimie W Polson
Hypoxia is a normal and essential part of embryonic development. However, this state may leave the embryo vulnerable to damage when oxygen supply is disturbed. Embryofetal response to hypoxia is dependent on duration and depth of hypoxia, as well as developmental stage. Early postimplantation rat embryos were resilient to hypoxia, with many surviving up to 1.5 hr of uterine clamping, while most mid-gestation embryos were dead after 1 hour of clamping. Survivors were small and many had a range of defects, principally terminal transverse limb reduction defects...
October 16, 2017: Birth defects research
https://www.readbyqxmd.com/read/29105006/explicit-expressions-for-the-estimation-of-the-elastic-constants-of-lamellar-bone-as-a-function-of-the-volumetric-mineral-content-using-a-multi-scale-approach
#7
Ana Vercher-Martínez, Eugenio Giner, Ricardo Belda, Abdelmalik Aigoun, F Javier Fuenmayor
In this work, explicit expressions to estimate all the transversely isotropic elastic constants of lamellar bone as a function of the volumetric bone mineral density (BMD) are provided. The methodology presented is based on the direct homogenization procedure using the finite element method, the continuum approach based on the Hill bounds, the least-square method and the mean field technique. Firstly, a detailed description of the volumetric content of the different components of bone is provided. The parameters defined in this step are related to the volumetric BMD considering that bone mineralization process occurs at the smallest scale length of the bone tissue...
November 5, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29103600/upper-body-accelerations-during-planned-gait-termination-in-young-and-older-women
#8
Lorenzo Rum, Luca Laudani, Andrea Macaluso, Giuseppe Vannozzi
Transitory tasks, such as gait termination, involve interactions between neural and biomechanical factors that challenge postural stability and head stabilization patterns in older adults. The aim of the study was to compare upper body patterns of acceleration during planned gait termination at different speeds between young and older women. Ten young and 10 older women were asked to carry out three gait termination trials at slow, comfortable and fast speed. A stereophotogrammetric system and a 15-body segments model were used to calculate antero-posterior whole-body Center of Mass (AP CoM) speed and to reconstruct the centroids of head, trunk and pelvis segments...
October 25, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29099762/long-term-stability-of-polymer-coated-surface-transverse-wave-sensors-for-the-detection-of-organic-solvent-vapors
#9
Ullrich Stahl, Achim Voigt, Marian Dirschka, Nicole Barié, Christiane Richter, Ansgar Waldbaur, Friederike J Gruhl, Bastian E Rapp, Michael Rapp, Kerstin Länge
Arrays with polymer-coated acoustic sensors, such as surface acoustic wave (SAW) and surface transverse wave (STW) sensors, have successfully been applied for a variety of gas sensing applications. However, the stability of the sensors' polymer coatings over a longer period of use has hardly been investigated. We used an array of eight STW resonator sensors coated with different polymers. This sensor array was used at semi-annual intervals for a three-year period to detect organic solvent vapors of three different chemical classes: a halogenated hydrocarbon (chloroform), an aliphatic hydrocarbon (octane), and an aromatic hydrocarbon (xylene)...
November 3, 2017: Sensors
https://www.readbyqxmd.com/read/29097335/isolated-transverse-process-spinal-fractures-increase-the-likelihood-of-incurring-visceral-and-pelvic-injuries-a-retrospective-review-at-a-level-1-trauma-center
#10
Lucas R Philipp, Jason Boulter, Christopher Deibert, Faiz U Ahmad
BACKGROUND: Although isolated transverse process fractures (ITPF) do not confer any inherent risk of compromised spinal stability, there is growing interest in their overall prognostic significance. As a proxy for localized or directional forces in high energy traumatic mechanisms, ITPF may serve as an indicator for the presence of other coexisting traumatic injuries. Specific injuries may be predicted by the presence of ITPF at specific spinal levels, but few studies have examined this in depth and may not account for confounding variables...
October 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29097234/patterns-of-bowel-invisible-microscopic-endometriosis-reveal-the-goal-of-surgery-removal-of-visual-lesions-only
#11
Alexandra Badescu, Horace Roman, Iulia Barsan, Valentin Soldea, Serban Nastasia, Moutaz Aziz, Lucian Puscasiu, Simona Stolnicu
STUDY OBJECTIVE: To document the presence of bowel invisible microscopic endometriosis implants and their relationship with deep endometriosis macronodule infiltrating the bowel. DESIGN: A series of consecutive patients with deep endometriosis infiltrating the rectum and/or sigmoid colon. DESIGN CLASSIFICATION: Canadian Task Force classification II-2. SETTINGS: University referral center. PATIENTS: Ten patients managed by colorectal resection...
October 30, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29082657/segmental-branching-pattern-of-the-left-portal-vein-anatomical-characteristics-and-clinical-implications
#12
Haythem Najah, Houssem Ammar, Rahul Gupt, Moncef Hamdoun, Abdelwaheb Morjane, Mongi Mighri, Sadok Sassi
INTRODUCTION: The existing knowledge on anatomy of segmental branches of left portal vein (LPV) is limited. This study aims to describe the surgical anatomy and variations of LPV and its segmental branching pattern. MATERIALS AND METHODS: Forty fresh cadaveric liver dissections were performed. The dissection of LPV was carried out from its emergence at the level of the portal vein bifurcation to its segmental branches penetrating the left hemiliver. LPV characteristics, the number and situation of its segmental branches were recorded...
October 30, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29080466/improved-compensatory-postural-adjustments-of-the-deep-abdominals-following-exercise-in-people-with-chronic-low-back-pain
#13
Michael F Knox, Lucy S Chipchase, Siobhan M Schabrun, Paul W M Marshall
The purpose of this study was to determine if 8 weeks of exercise affects motor control in people with chronic low back pain (CLBP), measured by anticipatory (APAs) and compensatory postural adjustments (CPAs). APAs and CPAs were measured prior to and following 8 weeks in two groups of people with CLBP: an exercise group (n=12) who attended three exercise sessions per week for 8 weeks; and a non-exercise control group (n=12) who were advised to continue their usual activities for the duration of the study. APAs and CPAs were recorded during unilateral arm flexion, bilaterally from rectus abdominis (RA), transverse abdominis/internal oblique (TA/IO), and erector spinae (ES) via surface electromyography...
October 20, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29079432/peripheral-nerve-injury-induced-rearrangement-of-neural-circuit-in-the-spinal-dorsal-horn-revealed-by-cross-correlation-analysis
#14
Yu Takemura, Shunsaku Kobayashi, Eiko Kato, Shigeki Yamaguchi, Yuuichi Hori
Peripheral nerve injury often induces abnormal pain states, such as hyperalgesia and allodynia. In this study, we attempted to elucidate how neurons are synaptically integrated into the neuronal circuitry in the spinal dorsal horn and how synaptic connectivity patterns among dorsal horn neurons are altered by peripheral nerve injury. Experiments were performed on 6-8-week-old ICR mice. Partial sciatic nerve ligation was performed. Transverse slices of the lumbar spinal cord were prepared. Spike activities were simultaneously recorded from multiple neurons in the superficial dorsal horn (SDH) using a multi-electrode array system, and cross-correlograms between spike trains of neuron pairs were constructed...
October 24, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29077504/point-of-care-diagnosis-of-onychomycosis-by-dermoscopy
#15
Myron A Bodman
BACKGROUND: Onychomycosis is one of the most common diseases of the toenails. The costs of diagnosis and treatment are substantial, and as the population ages, the overall cost burden will continue to escalate. The purpose of this study was to correlate dermoscopic features with pathologic diagnosis to support the accuracy of point-of-care diagnosis by dermoscopic examination. METHODS: Nail unit pathology reports of 52 patients with abnormal great toenails were compared with the dermoscopic features detected by nail unit dermoscopy...
September 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29076325/a-shark-attack-treated-in-a-tertiary-care-centre-case-report-and-review-of-the-literature
#16
Melissa Roy, Mathew Plant, Laura Snell
Although uncommon, shark attacks can lead to devastating outcomes for victims. Surgeons also face unique challenges during operative management such as exsanguination, shock, specific injury patterns and infections. This case report presents the management of a 39-year-old previously healthy female attacked by a shark while on vacation in Mexico. The patient sustained severe injuries to her left arm and her left thigh. She was transferred to a Canadian institution after ambiguous operative management in Mexico and presented with no clear antibiotic coverage and a Volkman's contracture of the left upper extremity...
October 27, 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29070804/digital-reconstruction-of-the-ceprano-calvarium-italy-and-implications-for-its-interpretation
#17
Fabio Di Vincenzo, Antonio Profico, Federico Bernardini, Vittorio Cerroni, Diego Dreossi, Stefan Schlager, Paola Zaio, Stefano Benazzi, Italo Biddittu, Mauro Rubini, Claudio Tuniz, Giorgio Manzi
The Ceprano calvarium was discovered in fragments on March 1994 near the town of Ceprano in southern Latium (Italy), embedded in Middle Pleistocene layers. After reconstruction, its morphological features suggests that the specimen belongs to an archaic variant of H. heidelbergensis, representing a proxy for the last common ancestor of the diverging clades that respectively led to H. neanderthalensis and H. sapiens. Unfortunately, the calvarium was taphonomically damaged. The postero-lateral vault, in particular, appears deformed and this postmortem damage may have influenced previous interpretations...
October 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29064441/pattern-recognition-of-the-multiple-sclerosis-syndrome
#18
REVIEW
Rana K Zabad, Renee Stewart, Kathleen M Healey
During recent decades, the autoimmune disease neuromyelitis optica spectrum disorder (NMOSD), once broadly classified under the umbrella of multiple sclerosis (MS), has been extended to include autoimmune inflammatory conditions of the central nervous system (CNS), which are now diagnosable with serum serological tests. These antibody-mediated inflammatory diseases of the CNS share a clinical presentation to MS. A number of practical learning points emerge in this review, which is geared toward the pattern recognition of optic neuritis, transverse myelitis, brainstem/cerebellar and hemispheric tumefactive demyelinating lesion (TDL)-associated MS, aquaporin-4-antibody and myelin oligodendrocyte glycoprotein (MOG)-antibody NMOSD, overlap syndrome, and some yet-to-be-defined/classified demyelinating disease, all unspecifically labeled under MSsyndrome...
October 24, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29061480/the-use-of-mri-to-predict-oncological-control-among-candidates-for-focal-ablation-of-prostate-cancer
#19
Alexander P Kenigsberg, Elton Llukani, Fang-Ming Deng, Jonathan Melamed, Ming Zhou, Herbert Lepor
OBJECTIVE: To provide insights into the role of mpMRI for predicting oncological control following two focal ablation (FA) templates for selective cases of prostate cancer (PCa). MATERIALS AND METHODS: 59 radical prostatectomies were performed between 2012 and 2016 on cases that fulfilled criteria for FA. The Gleason score (GS), extent of Gleason pattern (GP) 4, maximum linear cross sectional length (MLCSL) and location of tumor foci were recorded and related to scale on corresponding 3mm transverse slice prostate maps...
October 20, 2017: Urology
https://www.readbyqxmd.com/read/29060264/analysis-of-gait-pattern-during-stair-walk-for-improvement-of-gait-training-robot
#20
Sang-Eun Park, Ye Ji Ho, Youngjin Moon, Jaesoon Choi
This paper seeks stair gait patterns which can improve effectiveness of gait training by applying to robotic locomotion therapy system. To get applicable data for stair walking function of the system, the stair walk of five subjects were measured by a motion capture system. From the acquired data, trajectories of each joint angle and relative change of the joints were calculated in the anatomical sagittal plane. Also, we were attempt to create more natural stair gait pattern by analyzing the movement of hip on the transverse plane...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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