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https://www.readbyqxmd.com/read/28454148/highly-efficient-graphene-on-gap-modulator-by-employing-the-hybrid-plasmonic-effect
#1
Xiliang Peng, Ran Hao, Ziwei Ye, Pengfei Qin, Wenchao Chen, Hongsheng Chen, Xiaofeng Jin, Dongxiao Yang, Erping Li
We propose a highly efficient graphene-on-gap modulator (GOGM) by employing the hybrid plasmonic effect, whose modulation efficiency (up to 1.23 dB/μm after optimization) is ∼12-fold larger than that of the present graphene-on-silicon modulator (∼0.1  dB/μm). The proposed modulator has the advantage of a short modulation length of ∼3.6  μm, a relatively low insertion loss of ∼0.32  dB, and a larger modulation bandwidth of ∼0.48  THz. The physical insight is investigated, showing that both the slow light effect and the overlap between graphene and the mode field contribute...
May 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28448274/top-down-fabricated-tapered-gaas-nanowires-with-sacrificial-etching-of-the-mask
#2
Navneet Dhindsa, Simarjeet Saini
A novel fabrication method using controlled sacrificial etching of the mask is utilized to fabricate tapered vertical GaAs nanowire arrays. Experimental measurements of the absorption characteristics show that the tapered nanowires absorb over a broadband range as compared to cylindrical ones. The broadband characterization is verified by using optical modeling and results from improved coupling of the nanowires due to distinct radial HE modes being excited separately in the taper and the cylindrical part. The absorption is found to be more broadband as compared to conical nanowires studied so far...
April 27, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28446212/doctors-preferences-in-de-escalating-dmards-in-rheumatoid-arthritis-a-discrete-choice-experiment
#3
T Martijn Kuijper, Riëtte Folmer, Elly A Stolk, Johanna M W Hazes, Jolanda J Luime
BACKGROUND: Current guidelines suggest reduction of DMARDs can be considered in RA patients in remission. Objectives were (1) to estimate the relative importance of patient characteristics rheumatologists consider in their decision to de-escalate (2) to assess whether heterogeneity exists among rheumatologists with respect to de-escalation and (3) to identify the preferred de-escalation strategy. METHODS: A discrete choice experiment (DCE) was conducted. All rheumatologists and trainees in The Netherlands were invited to participate...
April 26, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28442122/the-effect-of-temperature-on-cyclic-fatigue-of-nickel-titanium-rotary-endodontic-instruments
#4
Amandeep Dosanjh, Susan Paurazas, Mazin Askar
INTRODUCTION: This study examined the effect of different temperatures on the cyclic fatigue of nickel-titanium rotary files. METHODS: Three groups of nickel-titanium rotary files (EF group [EdgeFile; EdgeEndo, Albuquerque, NM], VB group [Vortex Blue; Dentsply Tulsa Dental Specialties, Tulsa, OK], and ESX group [ESX; Brasseler USA, Savannah, GA]) of size 25 with a .04 taper and 25-mm length were tested in a metal block that simulated a canal curvature of 60° and a 5-mm radius curvature...
May 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28441994/a-30-year-old-woman-with-chronic-hives-intermittent-fevers-and-joint-pain
#5
Kevin A Cook, Megan T Lynch, Peter J Weis, Andrew A White
Chronic urticaria with concomitant systemic symptoms may be seen in several rheumatologic and autoinflammatory conditions. Although most of these conditions tend to improve with corticosteroids, symptoms often recur with dose tapering. The appearance of the rash in addition to the symptom pattern and laboratory data must be considered to differentiate potential causes. We presented a unique case of chronic urticaria with fevers and arthralgias. A diagnosis was made, and the patient had rapid improvement with targeted therapy...
May 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28441273/case-report-of-physiologic-phenibut-dependence-treated-with-a-phenobarbital-taper-in-a-patient-being-treated-with-buprenorphine
#6
Emily Brunner, Robert Levy
: This case report describes the development of dependence to phenibut, a gamma-aminobutyric acid-receptor type B agonist, in a patient concurrently being treated with buprenorphine. The patient experienced withdrawal symptoms which were successfully treated with a phenobarbital taper based on a protocol to treat sedative use disorder. This case report provided an example of the development of a phenibut use disorder and also brought up a public health question of whether phenibut should therefore be officially classified and monitored...
April 24, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28440029/treatment-effects-of-reverse-twin-block-and-reverse-pull-face-mask-on-craniofacial-morphology-in-early-and-late-mixed-dentition-children
#7
N Fareen, M K Alam, M F Khamis, N Mokhtar
OBJECTIVE: Reverse Twin-Block (RTB) and Reverse Pull Face Mask (RPFM) appliances are used to correct Class III malocclusion in growing patients. Aim of this retrospective study was to compare and analyse craniofacial changes produced by RTB and RPFM in the early and late mixed dentition in Malay children with Class III malocclusion. METHODS: Data consisted of pre- and post-treatment lateral cephalograms of 95 children, 49 patients with RTB and 46 patients with RPFM, divided into an early (8-9 year) and late (10-11 year) group...
April 25, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28439997/therapeutic-effectiveness-of-calcineurin-inhibitors-in-canine-vesicular-cutaneous-lupus-erythematosus
#8
Frane Banovic, David Robson, Monika Linek, Thierry Olivry
BACKGROUND: Oral and topical calcineurin inhibitors (CIs) have been reported to lead to complete lesion remission in several dogs with vesicular cutaneous lupus erythematosus (VCLE). OBJECTIVES: To report retrospectively on the effectiveness and adverse effects of systemic (ciclosporin) and/or topical (tacrolimus/pimecrolimus) CIs in 11 dogs with VCLE. METHODS: Inclusion criteria were: (i) presence of characteristic annular, polycyclic or serpiginous ulcerations distributed over the groin, axillae and/or ventral abdomen; (ii) a histopathological diagnosis of VCLE (i...
April 24, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28438383/remitting-seronegative-symmetrical-synovitis-with-pitting-edema-rs3pe-syndrome-induced-by-nivolumab
#9
Marie-Léa Gauci, Barouyr Baroudjian, Pauline Laly, Isabelle Madelaine, Laetitia Da Meda, Laetitia Vercellino, Martine Bagot, Frédéric Lioté, Cécile Pages, Céleste Lebbé
INTRODUCTION: A new articular syndrome described as immunrelated side effect of immunotherapy: PD-1 inhibitors have revolutionized the treatment of advanced melanoma but are responsible for immune-related toxicity. We report a case of remitting seronegative symetrical synovitis with pitting edema (RS3PE) syndrome induced by nivolumab. CASE REPORT: A 80 year-old man with stage IV BRAF-wild type and NRAS exon 2-mutated melanoma was treated first line by nivolumab 3mg/kg every 2 weeks...
March 8, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28438294/a-model-using-concomitant-markers-for-predicting-outcome-in-human-papillomavirus-positive-oropharyngeal-cancer
#10
Cinzia Bersani, Michael Mints, Nikolaos Tertipis, Linnea Haeggblom, Lars Sivars, Andreas Ährlund-Richter, Andrea Vlastos, Cecilia Smedberg, Nathalie Grün, Eva Munck-Wikland, Anders Näsman, Torbjörn Ramqvist, Tina Dalianis
OBJECTIVE: Head-neck cancer therapy has become intensified. With radiotherapy alone, 3-year disease-free survival (DFS) is 80% for HPV-positive TSCC/BOTSCC and better for patients with favorable characteristics, suggesting therapy could be tapered for some, decreasing side-effects. Therefore, we built a model to predict progression-free survival for patients with HPV-positive TSCC and BOTSCC. MATERIAL AND METHODS: TSCC/BOTSCC patients treated curatively between 2000 and 2011, with HPV16 DNA/E7 mRNA positive tumors examined for CD8(+) TILs, HPV16 mRNA and HLA class I expression were included...
May 2017: Oral Oncology
https://www.readbyqxmd.com/read/28437976/excitation-of-bloch-surface-wave-on-tapered-fiber-coated-with-one-dimensional-photonic-crystal-for-refractive-index-sensing
#11
Tianyu Tu, Fufei Pang, Shan Zhu, Jiajing Cheng, Huanhuan Liu, Jianxiang Wen, Tingyun Wang
We have theoretically and experimentally demonstrated a novel approach to excite Bloch surface wave (BSW) on tapered optical fibers, which are coated with one-dimensional photonic crystal (1DPC) consisting of periodic TiO<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> by atomic layer deposition technology. Two resonant dips are found in transmission spectra that are originated from the excitation of BSW for p-polarized light and s-polarized light, respectively. For the first time, we have demonstrated the developed device for refractive index (RI) sensing...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437972/integration-of-bow-tie-plasmonic-nano-antennas-on-tapered-fibers
#12
Abdul Khaleque, Evgeny G Mironov, Jonas H Osório, Ziyuan Li, Cristiano M B Cordeiro, Liming Liu, Marcos A R Franco, Jong-Leng Liow, Haroldo T Hattori
In this article, a new and flexible approach to control the electric field enhancement of bow-tie nano-antennas by integrating them on the lateral of a tapered optical fiber is proposed. The device is driven by a Q-switched laser and the performance of a fabricated nano-antenna in a quartz slide is tested by a Surface Enhanced Raman Scattering (SERS) experiment. A refractive index sensing experiment is also performed and a sensitivity of (240 ± 30) nm/RIU is found in the 1.33-1.35 index range.
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28435274/hashimoto-encephalopathy-with-high-plasma-monoamine-metabolite-levels-a-case-report
#13
Sho Horikoshi, Itaru Miura, Yasuto Kunii, Satoko Asano, Keiko Kanno-Nozaki, Hirobumi Mashiko, Hirooki Yabe
Hashimoto encephalopathy (HE) is believed to be an immune-mediated disorder associated with Hashimoto's thyroiditis. It was suggested that neuropsychiatric symptoms, the presence of antithyroid antibody, and good response to steroids were important for the diagnosis of HE. It has been reported that homovanillic acid (HVA) and 3-methoxy-4-hydroxyphenylglycol (MHPG), which are monoamine metabolites of dopamine and noradrenaline, respectively, are the possible biomarkers of neuropsychiatric diseases. We report a case of Hashimoto encephalopathy, in which we longitudinally measured the plasma levels of monoamine metabolites...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28434547/stress-dose-corticosteroid-versus-placebo-in-neonatal-cardiac-operations-a-randomized-controlled-trial
#14
Pertti K Suominen, Juho Keski-Nisula, Tiina Ojala, Paula Rautiainen, Timo Jahnukainen, Johanna Hästbacka, Pertti J Neuvonen, Olli Pitkänen, Jussi Niemelä, Anu Kaskinen, Jukka Salminen, Risto Lapatto
BACKGROUND: Corticosteroids can improve the hemodynamic status of neonates with postoperative low cardiac output syndrome after cardiac operations. This study compared a prophylactically administered stress-dose corticosteroid (SDC) regimen against placebo on inflammation, adrenocortical function, and hemodynamic outcome. METHODS: Forty neonates undergoing elective open heart operations were randomized into two groups. The SDC group received perioperatively 2 mg/kg methylprednisolone, and 6 hours after the operation, a hydrocortisone infusion (0...
April 20, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28432167/a-tale-of-two-vasculitides-biopsy-proven-giant-cell-arteritis-followed-by-the-independent-development-of-renal-limited-microscopic-polyangiitis
#15
Roman Zuckerman, Mayur Patel, Deborah R Alpert
We describe an 80-year-old woman who presented with headaches, bilateral jaw claudication and visual symptoms. She was diagnosed with giant cell arteritis, which was confirmed by temporal artery biopsy. She was treated with high-dose prednisone followed by a slow taper, with complete resolution of symptoms. Approximately 4 years later, she developed progressively worsening renal function associated with haematuria. Serological workup revealed a high-titre perinuclear antinuclear cytoplasmic antibody and antibodies to myeloperoxidase...
April 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28431211/oxyuricassis-coronatus-n-gen-n-sp-and-o-hexaspinatus-n-sp-oxyurida-pharyngodonidae-parasites-of-lasiancistrus-saetiger-siluriformes-loricariidae-in-freshwater-rivers-of-the-brazilian-amazon
#16
Allan Rodrigo Oliveira Rodrigues, Jeannie Nascimentodos Santos, Adriano Penha Furtado, Francisco Tiago Vasconcelos Melo
A new nematode genus is described from intestines of Lasiancistrus saetiger Ambruster from freshwater rivers in the Brazilian Amazon. Oxyuricassis n. gen. is characterized by, a cephalic hood, buccal cavity small , long oesophagus with a well-developed isthmus and a conical tail with spines. Two new species are described: O. coronatus n. sp. is characterized by the absence of lateral alae, a conical tail with truncated extremity with sclerotized projections spine-like around the tail tip, male of O. coronatus has a caudal alae sucker-like...
April 21, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28426849/effect-of-adalimumab-on-visual-functioning-in-patients-with-noninfectious-intermediate-uveitis-posterior-uveitis-and-panuveitis-in-the-visual-1-and-visual-2-trials
#17
John Sheppard, Avani Joshi, Keith A Betts, Stacie Hudgens, Samir Tari, Naijun Chen, Martha Skup, Andrew D Dick
Importance: Adalimumab was recently approved for the treatment of noninfectious intermediate uveitis, posterior uveitis, and panuveitis. Objective: To assess the effect of adalimumab on the visual functioning and quality of life in patients with corticosteroid-dependent noninfectious intermediate uveitis, posterior uveitis, and panuveitis. Design: A post hoc analysis of clinical trials of adults with active (VISUAL-1) and inactive (VISUAL-2) noninfectious intermediate uveitis, posterior uveitis, and panuveitis was conducted in the United States, Canada, Europe, Israel, Australia, Latin America, and Japan...
April 20, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28426336/effect-of-laser-energy-and-tip-insertion-depth-on-the-pressure-generated-outside-the-apical-foramen-during-er-yag-laser-activated-root-canal-irrigation
#18
Kanako Yao, Kazuhisa Satake, Satoshi Watanabe, Arata Ebihara, Chihiro Kobayashi, Takashi Okiji
OBJECTIVE: The risk of extrusion of irritative irrigants into the extraradicular tissue should be minimized during root canal irrigation. This study aimed to examine the pressure generated outside the apex during Er:YAG laser-activated irrigation (LAI) in comparison with passive ultrasonic irrigation (PUI) and conventional syringe irrigation (SI). BACKGROUND DATA: LAI is reported to be efficient for root canal debridement, whereas the apical pressure generated during LAI has not been investigated in detail...
April 20, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28425772/prediction-of-successful-dose-reduction-or-discontinuation-of-adalimumab-etanercept-or-infliximab-in-rheumatoid-arthritis-patients-using-serum-drug-levels-and-antidrug-antibody-measurement
#19
Cam Bouman, N van Herwaarden, Fhj van den Hoogen, A van der Maas, Bjf van den Bemt, A A den Broeder
BACKGROUND: To evaluate if TNF inhibitor serum drug levels (DL) or anti-drug antibodies (ADAb) can predict successful dose reduction (in patients with high DL) or discontinuation (in patients with no/low DL or ADAb) in rheumatoid arthritis (RA) patients. RESEARCH DESIGN AND METHODS: RA patients that were using adalimumab (n = 42), etanercept (n = 76) or infliximab (n = 51) and were doing well, were tapered until discontinuation or flare (1-1.5 year follow up)...
April 24, 2017: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/28422003/efficacy-and-safety-of-leflunomide-as-an-adjuvant-drug-in-refractory-dermatomyositis-with-primarily-cutaneous-activity
#20
Renata C de Souza, Fernando H C de Souza, Renata Miossi, Samuel K Shinjo
OBJECTIVES: To evaluate leflunomide as an adjuvant drug in refractory dermatomyositis (DM) with primarily cutaneous activity. METHODS: A retrospective, single-centre, cohort study including 18 adult patients with DM (classical or clinically amyopathic DM) and cutaneous activity from 2001 to 2016 was conducted. Patients were dependent on glucocorticoid and refractory to at least two full-dose immunosuppressants/immunomodulators or presented previous adverse events with immunobiological drugs...
April 18, 2017: Clinical and Experimental Rheumatology
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