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https://www.readbyqxmd.com/read/28212636/experimental-hut-evaluation-of-a-novel-long-lasting-non-pyrethroid-durable-wall-lining-for-control-of-pyrethroid-resistant-anopheles-gambiae-and-anopheles-funestus-in-tanzania
#1
Robert Malima, Basiliana Emidi, Louisa A Messenger, Richard M Oxborough, Bernard Batengana, Wema Sudi, Sophie Weston, George Mtove, Joseph P Mugasa, Franklin W Mosha, Mark W Rowland, William Kisinza
BACKGROUND: A novel, insecticide-treated, durable wall lining (ITWL), which mimics indoor residual spraying (IRS), has been developed to provide prolonged vector control when fixed to the inner walls of houses. PermaNet(®) ITWL is a polypropylene material containing non-pyrethroids (abamectin and fenpyroximate) which migrate gradually to the surface. METHODS: An experimental hut trial was conducted in an area of pyrethroid-resistant Anopheles gambiae s.l. and Anopheles funestus s...
February 17, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28208417/terahertz-generation-from-laser-driven-ultrafast-current-propagation-along-a-wire-target
#2
H B Zhuo, S J Zhang, X H Li, H Y Zhou, X Z Li, D B Zou, M Y Yu, H C Wu, Z M Sheng, C T Zhou
Generation of intense coherent THz radiation by obliquely incidenting an intense laser pulse on a wire target is studied using particle-in-cell simulation. The laser-accelerated fast electrons are confined and guided along the surface of the wire, which then acts like a current-carrying line antenna and under appropriate conditions can emit electromagnetic radiation in the THz regime. For a driving laser intensity ∼3×10^{18}W/cm^{2} and pulse duration ∼10 fs, a transient current above 10 KA is produced on the wire surface...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28203004/-a-method-for-rapid-extracting-three-dimensional-root-model-of-vivo-tooth-from-cone-beam-computed-tomography-data-based-on-the-anatomical-characteristics-of-periodontal-ligament
#3
Y J Zhao, S W Wang, Y Liu, Y Wang
OBJECTIVE: To explore a new method for rapid extracting and rebuilding three-dimensional (3D) digital root model of vivo tooth from cone beam computed tomography (CBCT) data based on the anatomical characteristics of periodontal ligament, and to evaluate the extraction accuracy of the method. METHODS: In the study, 15 extracted teeth (11 with single root, 4 with double roots) were collected from oral clinic and 3D digital root models of each tooth were obtained by 3D dental scanner with a high accuracy 0...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28202024/who-cone-bio-assays-of-classical-and-new-generation-long-lasting-insecticidal-nets-call-for-innovative-insecticides-targeting-the-knock-down-resistance-mechanism-in-benin
#4
Marius Allossogbe, Virgile Gnanguenon, Boulais Yovogan, Bruno Akinro, Rodrigue Anagonou, Fiacre Agossa, André Houtoukpe, Germain Gil Padonou, Martin Akogbeto
BACKGROUND: To increase the effectiveness of insecticide-treated nets (ITN) in areas of high resistance, new long-lasting insecticidal nets (LLINs) called new-generation nets have been developed. These nets are treated with the piperonyl butoxide (PBO) synergist which inhibit the action of detoxification enzymes. The effectiveness of the new-generation nets has been proven in some studies, but their specific effect on mosquitoes carrying detoxification enzymes and those carrying both detoxification enzymes and the knock-down resistance gene in Benin is not well known...
February 15, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28197754/differences-in-ocular-findings-in-two-siblings-one-with-complete-and-other-with-incomplete-achromatopsia
#5
Shinji Ueno, Ayami Nakanishi, Akira Sayo, Taro Kominami, Yasuki Ito, Takaaki Hayashi, Kazushige Tsunoda, Takeshi Iwata, Hiroko Terasaki
PURPOSE: Patients with complete achromatopsia (ACHM) lack cone function, and patients with incomplete ACHM have relatively good visual acuity with residual color vision. The pathological mechanism(s) underlying incomplete ACHM has not been determined. The purpose of this study was to determine the pathophysiology of ACHM in two siblings: one with complete ACHM and the other with incomplete ACHM. METHODS: The medical charts of the two siblings were reviewed. RESULTS: The sibling with incomplete ACHM had decimal visual acuities that ranged from 0...
February 14, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/28193820/functional-preservation-and-variation-in-the-cone-opsin-genes-of-nocturnal-tarsiers
#6
Gillian L Moritz, Perry S Ong, George H Perry, Nathaniel J Dominy
The short-wavelength sensitive (S-) opsin gene OPN1SW is pseudogenized in some nocturnal primates and retained in others, enabling dichromatic colour vision. Debate on the functional significance of this variation has focused on dark conditions, yet many nocturnal species initiate activity under dim (mesopic) light levels that can support colour vision. Tarsiers are nocturnal, twilight-active primates and exemplary visual predators; they also express different colour vision phenotypes, raising the possibility of discrete adaptations to mesopic conditions...
April 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28190601/clinical-implementation-of-coverage-probability-planning-for-nodal-boosting-in-locally-advanced-cervical-cancer
#7
Anne Ramlov, Marianne S Assenholt, Maria F Jensen, Caroline Grønborg, Remi Nout, Markus Alber, Lars Fokdal, Kari Tanderup, Jacob Chr Lindegaard
PURPOSE: To implement coverage probability (CovP) for dose planning of simultaneous integrated boost (SIB) of pathologic lymph nodes in locally advanced cervical cancer (LACC). MATERIAL AND METHODS: CovP constraints for SIB of the pathological nodal target (PTV-N) with a central dose peak and a relaxed coverage at the perimeter were generated for use with the treatment planning system Eclipse: PTV-N D98 >90%, CTV-N D98 >100% and CTV-N D50 >101.5% of prescribed dose...
February 9, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28181521/determining-the-nature-of-the-gap-in-semiconducting-graphene
#8
J C Prestigiacomo, A Nath, M S Osofsky, S C Hernández, V D Wheeler, S G Walton, D K Gaskill
Since its discovery, graphene has held great promise as a two-dimensional (2D) metal with massless carriers and, thus, extremely high-mobility that is due to the character of the band structure that results in the so-called Dirac cone for the ideal, perfectly ordered crystal structure. This promise has led to only limited electronic device applications due to the lack of an energy gap which prevents the formation of conventional device geometries. Thus, several schemes for inducing a semiconductor band gap in graphene have been explored...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28174060/does-additional-cone-beam-computed-tomography-decrease-the-risk-of-inferior-alveolar-nerve-injury-in-high-risk-cases-undergoing-third-molar-surgery-does-cbct-decrease-the-risk-of-ian-injury
#9
Y T Korkmaz, S Kayıpmaz, F C Senel, K T Atasoy, Z Gumrukcu
The objectives of this study were to evaluate the efficacy of additional cone beam computed tomography (CBCT) imaging on decreasing the risk of inferior alveolar nerve (IAN) injury during third molar removal in patients at high risk and to assess the surgical outcomes. The study sample included patients considered at high risk for IAN injury based on panoramic radiography (PAN) evaluation. The primary predictor was the type of imaging method (PAN only or with additional CBCT). The other variables were demographic and anatomical/radiographic factors...
February 4, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28168617/an-anatomical-study-of-pneumatized-crista-galli
#10
Ranko Mladina, Romano Antunović, Cemal Cingi, Nuray Bayar Muluk, Neven Skitarelić, Mislav Malić
The literature data on the incidence of pneumatization of the crista galli based on patients' computed tomography (CT) scans ranges from 3 to 37.5%. This study investigated for the first time the incidence of crista galli pneumatization based on CT scans of human skulls. The study examined 102 randomly selected human skulls (≥20 years of age; 76 males, 26 females). Skulls were scanned in a fixed position using cone beam computed tomography (CBCT) with a field of view of 145 × 130 mm and an isotropic voxel size of 0...
February 6, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28168050/the-degeneration-and-apoptosis-patterns-of-cone-photoreceptors-in-rd11-mice
#11
Hua Zhang, Xia Li, Xufeng Dai, Juanjuan Han, Yangyang Zhang, Yan Qi, Ying He, Yan Liu, Bo Chang, Ji-Jing Pang
The retinal degeneration 11 (rd11) mouse is a new animal model with rapid photoreceptor degeneration. The long-term efficacy of gene therapy has a direct relationship with the onset of photoreceptor degeneration or apoptosis, whereas the degeneration or apoptosis patterns of photoreceptors are still unclear in rd11 mice. The distribution patterns of cone function-related L- and S-opsin were examined by immunofluorescence staining, and the apoptosis was performed by TUNEL assay in rd11 mice. The expression pattern of L-opsin or S-opsin in rd11 retina at postnatal day (P) 14 was similar to the pattern observed in wildtype retina...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28165108/predicting-a-graphene-like-wb4-nanosheet-with-a-double-dirac-cone-an-ultra-high-fermi-velocity-and-significant-gap-opening-by-spin-orbit-coupling
#12
Chunmei Zhang, Yalong Jiao, Fengxian Ma, Steven Bottle, Mingwen Zhao, Zhongfang Chen, Aijun Du
The zero-band gap nature of graphene prevents it from performing as a semi-conductor in modern electronics. Although various graphene modification strategies have been developed to address this limitation, the very small band gap of these materials and the suppressed charge carrier mobility of the devices developed still significantly hinder graphene's applications. In this work, a two dimensional (2D) WB4 monolayer, which exhibits a double Dirac cone, was conceived and assessed using density functional theory (DFT) methods, which would provide a sizable band gap while maintaining higher charge mobility with a Fermi velocity of 1...
February 6, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28162199/-relation-between-ultrasonographic-characteristics-of-pathologic-myopia-posterior-staphyloma-and-retinoschisis
#13
Q Liu, S Y Li, X Chen
Objective: To study the ultrasonographic characteristics of pathologic myopia posterior staphyloma and the relation with retinoschisis. Methods: Retrospective case series study. Eighty-seven eyes of 66 pathologic myopia patients with posterior staphyloma were included. Staphyloma morphology and anteroposterior axis of the eyeball were observed by B-scan ultrasonography. Optical coherence tomography was used to explore the retinoschisis. Results: Arc-shaped (10.35%), cone-shaped (22.99%), wedge-shaped (33.33%) and rectangle-shaped (33...
January 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28158482/pharmacokinetic-profile-of-oral-cannabis-in-humans-blood-and-oral-fluid-disposition-and-relation-to-pharmacodynamic-outcomes
#14
Ryan Vandrey, Evan S Herrmann, John M Mitchell, George E Bigelow, Ronald Flegel, Charles LoDico, Edward J Cone
No abstract text is available yet for this article.
February 3, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28157843/perifoveal-s-cone-and-rod-driven-temporal-contrast-sensitivities-at-different-retinal-illuminances
#15
Cord Huchzermeyer, Jan Kremers
We evaluated a technique for measuring temporal contrast sensitivities to sine-wave modulation driven by S-cones and rods in the perifovea using triple silent substitution. Isolating stimuli for S-cones and rods were created using an eight-channel, four-primary LED stimulator that has been validated before. Sensitivities were measured at 10 different temporal frequencies between 1 and 28 Hz in three normal observers at 14 different retinal illuminances between 0.07 and 587 photopic troland (phot Td) and at three different retinal illuminances over the same range in one S-cone monochromat...
February 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/28150380/three-dimensional-assessment-of-condylar-position-and-joint-spaces-after-maxillary-first-premolar-extraction-in-skeletal-class-ii-malocclusion
#16
M S Alhammadi, M S Fayed, A Labib
OBJECTIVES: This study sought to investigate the three-dimensional (3D) changes in anteroposterior, vertical and mediolateral positions and orientations of the mandibular condyle as well as joint space parameters following maxillary first premolar extraction and incisor retraction in skeletal Class II patients. SETTING AND SAMPLE POPULATION: Thirty patients were treated by orthodontic maxillary first premolar extraction at the Faculty of Oral and Dental Medicine, Cairo University, Egypt...
February 1, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28149463/a-cone-beam-computed-tomography-cbct-evaluation-of-mb2-canals-in-endodontically-treated-permanent-maxillary-molars-a-retrospective-study-in-indian-population
#17
Heeresh Shetty, Subodh Sontakke, Freny Karjodkar, Pankaj Gupta, Ashish Mandwe, K S Banga
BACKGROUND: Current technological advances have allowed application of different study designs and techniques for investigation of dental anatomy. Some clinical studies have provided evidence that Cone Beam computed tomography (CBCT) scanning is an important resource in assessment of root canal systems notably to identify MB2 canals in maxillary molars as CBCT scans allow in vivo dental investigation in axial, sagittal and coronal planes simultaneously. The current study was undertaken to detect and evaluate filled/unfilled MB2 canals in endodontically treated, asymptomatic maxillary molars utilizing cone beam computed tomography (CBCT)...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28145975/repeatability-and-longitudinal-assessment-of-foveal-cone-structure-in-cngb3-associated-achromatopsia
#18
Christopher S Langlo, Laura R Erker, Maria Parker, Emily J Patterson, Brian P Higgins, Phyllis Summerfelt, Moataz M Razeen, Frederick T Collison, Gerald A Fishman, Christine N Kay, Jing Zhang, Richard G Weleber, Paul Yang, Mark E Pennesi, Byron L Lam, Jeffrey D Chulay, Alfredo Dubra, William W Hauswirth, David J Wilson, Joseph Carroll
PURPOSE: Congenital achromatopsia is an autosomal recessive disease causing substantial reduction or complete absence of cone function. Although believed to be a relatively stationary disorder, questions remain regarding the stability of cone structure over time. In this study, the authors sought to assess the repeatability of and examine longitudinal changes in measurements of central cone structure in patients with achromatopsia. METHODS: Forty-one subjects with CNGB3-associated achromatopsia were imaged over a period of between 6 and 26 months using optical coherence tomography and adaptive optics scanning light ophthalmoscopy...
January 31, 2017: Retina
https://www.readbyqxmd.com/read/28142009/three-dimensional-analysis-of-long-term-stability-after-bilateral-sagittal-split-ramus-osteotomy-fixed-with-a-single-miniplate-with-4-monocortical-screws-and-1-bicortical-screw-a-retrospective-2-center-study
#19
F Hernández-Alfaro, M Raffaini, A Paredes-de-Sousa-Gil, A S Magri, R Guijarro-Martínez, A Valls-Ontañón
PURPOSE: This study evaluated the long-term stability of bilateral sagittal split ramus osteotomy fixed with a single miniplate with 4 monocortical screws and 1 bicortical screw (hybrid technique [HT]) using 3-dimensional (3D) analysis and an objective measuring tool, cone-beam computed tomography (CBCT). MATERIALS AND METHODS: Sixty-four patients who underwent bimaxillary surgery with mandibular advancement fixed with the HT were selected from 2 different institutions and enrolled in this retrospective study...
January 4, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28125838/the-pattern-of-retinal-ganglion-cell-loss-in-opa1-related-autosomal-dominant-optic-atrophy-inferred-from-temporal-spatial-and-chromatic-sensitivity-losses
#20
Anna Majander, Catarina João, Andrew T Rider, G Bruce Henning, Marcela Votruba, Anthony T Moore, Patrick Yu-Wai-Man, Andrew Stockman
Purpose: Progressive retinal ganglion cell (RGC) loss is the pathological hallmark of autosomal dominant optic atrophy (DOA) caused by pathogenic OPA1 mutations. The aim of this study was to conduct an in-depth psychophysical study of the visual losses in DOA and to infer any selective vulnerability of visual pathways subserved by different RGC subtypes. Methods: We recruited 25 patients carrying pathogenic OPA1 mutations and age-matched healthy individuals. Spatial contrast sensitivity functions (SCSFs) and chromatic contrast sensitivity were quantified, the latter using the Cambridge Colour Test...
January 1, 2017: Investigative Ophthalmology & Visual Science
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