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https://www.readbyqxmd.com/read/28213258/p-aminothiophenol-coated-cdse-zns-quantum-dots-as-a-turn-on-fluorescent-probe-for-ph-detection-in-aqueous-media
#1
Dong Li, Hu Xu, Dan Li, Yuhong Wang
Since controlling hydrogen ion concentration (i.e. pH) is fairly important in various fields, developing a facile pH detection method is highly desired. Owing to the superior optical properties, semiconductor quantum dots (QDs) have been developed as a promising alternative for organic fluorophores in fluorescence analysis. In this study, a hydrophilic p-aminothiophenol (pATP) capped CdSe/ZnS QDs (denoted as pATP-QDs) as a selective "turn-on" fluorescence probe for pH in aqueous media is reported. The pATP-QDs probe easily obtained via ligand exchange are characterized by various analytic techniques including ultraviolet-visible, fourier transform infrared, fluorescence, time-resolved fluorescence spectroscopies, and transmission electron microscope etc...
May 1, 2017: Talanta
https://www.readbyqxmd.com/read/28210644/axial-plane-biomechanical-evaluation-of-2-suspensory-cortical-button-fixation-constructs-for-acromioclavicular-joint-reconstruction
#2
REVIEW
Steven Struhl, Theodore S Wolfson, Frederick Kummer
BACKGROUND: Although numerous suture-button fixation techniques for acromioclavicular (AC) joint reconstruction have been validated with biomechanical testing in the superior direction, clinical reports continue to demonstrate high rates of construct slippage and breakage. PURPOSE: To compare the stability of a novel closed-loop double Endobutton construct with a commercially available cortical button system in both the axial and superior directions. STUDY DESIGN: Controlled laboratory study...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28210634/potential-of-a-pharmacogenetic-guided-algorithm-to-predict-optimal-warfarin-dosing-in-a-high-risk-hispanic-patient-role-of-a-novel-nqo1-2-polymorphism
#3
Dagmar F Hernandez-Suarez, Karla Claudio-Campos, Javier E Mirabal-Arroyo, Bianca A Torres-Hernández, Angel López-Candales, Kyle Melin, Jorge Duconge
Deep abdominal vein thrombosis is extremely rare among thrombotic events secondary to the use of contraceptives. A case to illustrate the clinical utility of ethno-specific pharmacogenetic testing in warfarin management of a Hispanic patient is reported. A 37-year-old Hispanic Puerto Rican, non-gravid female with past medical history of abnormal uterine bleeding on hormonal contraceptive therapy was evaluated for abdominal pain. Physical exam was remarkable for unspecific diffuse abdominal tenderness, and general initial laboratory results-including coagulation parameters-were unremarkable...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28203364/tiotropium-formulations-and-safety-a-network-meta-analysis
#4
Mario Cazzola, Luigino Calzetta, Paola Rogliani, Maria Gabriella Matera
Tiotropium is now delivered via two different inhaler devices: the original Handihaler 18 μg once daily, which uses a powder formulation; and the newer Respimat Soft Mist Inhaler (SMI) 5 μg once daily. It has been questioned whether the two devices can be assumed to have the same safety profile, although the TIOSPIR trial showed that tiotropium when administered via Respimat SMI 5 μg is not less safe than Handihaler 18 μg. Therefore, we have carried out a safety evaluation of tiotropium Handihaler 18 µg versus tiotropium Respimat SMI 5 µg and 2...
January 2017: Therapeutic Advances in Drug Safety
https://www.readbyqxmd.com/read/28203183/cerebral-venous-thrombosis-in-the-superior-sagittal-sinus-as-a-rare-cause-of-a-paroxysmal-kinetic-tremor
#5
Kei Murao, Shuji Arakawa, Yoshihiko Furuta, Masahiro Shijo, Tetsuro Ago, Takanari Kitazono
Cerebral venous thrombosis (CVT) has a broad spectrum of clinical presentation compared to arterial etiology. Seizure is one of the common symptoms and is more frequent than in other stroke types. Hence, transient neurological symptoms in CVT patients are usually due to epileptic seizures, while transient repetitive movement disorder is extremely rare except as a complication of epilepsy. We report a case of CVT in the superior sagittal sinus with a 1-year history of paroxysmal kinetic tremor without evident epilepsy...
September 2016: Case Reports in Neurology
https://www.readbyqxmd.com/read/28203181/bilateral-superior-cerebellar-artery-embolic-occlusion-with-a-fetal-type-posterior-cerebral-artery-providing-collateral-circulation
#6
Taylor J Bergman, Rachael C Saporito, Thomas Hope
Bilateral infarction of the superior cerebellar arteries with sparing of the rest of the posterior circulation, particularly the posterior cerebral arteries, is an uncommon finding in neurological practice. Most commonly, the deficits of the superior cerebellar arteries and posterior cerebral arteries occur together due to the close proximity of their origins at the top of the basilar artery. A patient was transferred to the neurological intensive care unit with a history of recent-onset falls from standing, profound hypertension, dizziness, and headaches...
September 2016: Case Reports in Neurology
https://www.readbyqxmd.com/read/28197408/module-anchored-network-inference-a-sequential-module-based-approach-to-novel-gene-network-construction-from-genomic-expression-data-on-human-disease-mechanism
#7
Annamalai Muthiah, Susanna R Keller, Jae K Lee
Different computational approaches have been examined and compared for inferring network relationships from time-series genomic data on human disease mechanisms under the recent Dialogue on Reverse Engineering Assessment and Methods (DREAM) challenge. Many of these approaches infer all possible relationships among all candidate genes, often resulting in extremely crowded candidate network relationships with many more False Positives than True Positives. To overcome this limitation, we introduce a novel approach, Module Anchored Network Inference (MANI), that constructs networks by analyzing sequentially small adjacent building blocks (modules)...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28195609/anatomical-relationship-of-the-axillary-nerve-to-the-pectoralis-major-tendon-insertion
#8
Brian Shiu, Ehsan Jazini, Astor Robertson, R Frank Henn, S Ashfaq Hasan
Axillary nerve injury is a risk of the deltopectoral approach to the proximal humerus. The anterior motor branch is potentially vulnerable during subdeltoid dissection. Insertion of the pectoralis major tendon is an easily identifiable landmark on the humerus. This anatomical study explored whether the superior aspect of the pectoralis major tendon is a useful landmark for localizing the anterior motor branch of the axillary nerve as it travels under the lateral and anterior deltoid muscle. A total of 30 fresh-frozen human bilateral cadaveric upper extremities were examined...
February 13, 2017: Orthopedics
https://www.readbyqxmd.com/read/28195297/efficient-planar-n-i-p-type-heterojunction-flexible-perovskite-solar-cells-with-sputtered-tio2-electron-transporting-layers
#9
Sawanta S Mali, Chang Kook Hong, A I Inamdar, Hyunsik Im, Sang Eun Shim
The development of hybrid organo-lead trihalide perovskite solar cells (PSCs) comprising an electron transporting layer (ETL), a perovskite light absorber and a hole transporting layer (HTL) has received significant attention for their potential in efficient PSCs. However, the preparation of a compact and uniform ETL and the formation of a uniform light absorber layer suffer from a high temperature processing treatment and the formation of unwanted perovskite islands, respectively. A low temperature/room temperature processed ETL is one of the best options for the fabrication of flexible PSCs...
February 14, 2017: Nanoscale
https://www.readbyqxmd.com/read/28194643/ultra-efficient-amplification-of-abnormal-prion-protein-by-modified-protein-misfolding-cyclic-amplification-with-electric-current
#10
Jeong-Ho Park, Yeong-Gon Choi, Seok-Joo Park, Hong-Seok Choi, Eun-Kyoung Choi, Yong-Sun Kim
Prion diseases are clinically diagnosed and confirmed upon post-mortem histopathological examination of brain tissue. The only reliable molecular marker for prion diseases is abnormal prion protein (PrPSc), a pathologically conformed prion protein that primarily accumulates in the central nervous system and to a lesser extent in lymphoreticular tissues. However, the use of PrPSc as a marker for preclinical diagnoses is limited because the concentration of PrPSc in easily accessible body fluids is extremely low...
February 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28186917/nystr%C3%A3-m-approximated-temporally-constrained-multisimilarity-spectral-clustering-approach-for-movie-scene-detection
#11
Rameswar Panda, Sanjay K Kuanar, Ananda S Chowdhury
Movie scene detection has emerged as an important problem in present day multimedia applications. Since a movie typically consists of huge amount of video data with widespread content variations, detecting a movie scene has become extremely challenging. In this paper, we propose a fast yet accurate solution for movie scene detection using Nyström approximated multisimilarity spectral clustering with a temporal integrity constraint. We use multiple similarity matrices to model the wide content variations typically present in any movie dataset...
February 7, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28179969/composite-lymphoma-opposite-ends-of-spectrum-meet
#12
Uqba Khan, Tarik Hadid, Warda Ibrar, Dahlia Sano, Ayad Al-Katib
An 18-year-old African-American female presented with an episode of syncope. Initial investigations revealed large lung mass with invasion into right atrium along with lesions in kidneys and liver. Patient also developed superior vena cava syndrome due to lung mass. Biopsy of lung mass revealed diagnosis of composite lymphoma with involvement by primary mediastinal B-cell lymphoma (PMBCL) and classical Hodgkin lymphoma. Patient was started on dose-adjusted etoposide, prednisone, vincristine, cyclophosphamide, doxorubicin and rituximab (EPOCH-R) with complete response to treatment...
March 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28174437/the-effects-of-a-pelvic-belt-on-trunk-and-lower-extremity-muscles-in-the-bridge-position
#13
Hyun-Gyu Cha, Yan-Ting Wu, Myoung-Kwon Kim
[Purpose] The purpose of this study was to investigate the effects of a pelvic belt on the activities of trunk and lower extremity muscles in normal adults. [Subjects and Methods] The subjects were 20 normal individuals without a history of orthopedic problems. The pelvic compression belt (The Com-Pressor, OPTP, Minneapolis, MN, USA) was an adjustable body belt with four elastic compression bands that provide stabilizing pressure and was designed to adjust the amount of force applied and to alter sites of compression...
December 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28169343/improved-flexible-transparent-conductive-electrodes-based-on-silver-nanowire-networks-by-a-simple-sunlight-illumination-approach
#14
Pengfei Kou, Liu Yang, Cheng Chang, Sailing He
Silver nanowire (Ag NW) networks have attracted wide attention as transparent electrodes for emerging flexible optoelectronics. However, the sheet resistance is greatly limited by large wire-to-wire contact resistances. Here, we propose a simple sunlight illumination approach to remarkably improve their electrical conductivity without any significant degradation of the light transmittance. Because the power density is extremely low (0.1 W/cm(2), 1-Sun), only slight welding between Ag NWs has been observed...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28159420/efficacy-in-deep-vein-thrombosis-prevention-with-extended-mechanical-compression-device-therapy-and-prophylactic-aspirin-following-total-knee-arthroplasty-a-randomized-control-trial
#15
Mark A Snyder, Alexandra N Sympson, Christina M Scheuerman, Justin L Gregg, Lala R Hussain
BACKGROUND: Aspirin at 325 mg twice daily is now included as a nationally approved venous thromboembolism (VTE) prophylaxis protocol for low-risk total knee arthroplasty (TKA) patients. The purpose of this study is to examine whether there is a difference in deep vein thrombosis (DVT) occurrence after a limited tourniquet TKA using aspirin-based prophylaxis with or without extended use of mechanical compression device (MCD) therapy. METHODS: One hundred limited tourniquet TKA patients, whose DVT risk was managed with aspirin 325 mg twice daily for 3 weeks, were randomized to either using an MCD during hospitalization only or extended use at home up to 6 weeks postoperatively...
December 23, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28158122/high-resolution-wavelet-fractal-compressed-optical-coherence-tomography-images
#16
Mekhalfa Faiza, Saba Adabi, Berkani Daoud, Mohammad R N Avanaki
Three-dimensional (3D) optical coherence tomography (OCT) images could assist specialists in the diagnosis of a disease in a tissue by providing morphological information from it. Since the size of such images is usually extremely large, an appropriate image compression method can help in the storage and transmission of these images. Fractal image compression provides very high compression ratios, and discrete wavelet transform (DWT) retains frequency and spatial information in the signal. In order to combine these two techniques, fractal coding has to be performed in the wavelet domain...
February 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28157810/bayes-to-the-rescue-continuous-positive-airway-pressure-has-less-mortality-than-high-flow-oxygen
#17
Vicent Modesto I Alapont, Robinder G Khemani, Alberto Medina, Pablo Del Villar Guerra, Alfred Molina Cambra
OBJECTIVES: The merits of high-flow nasal cannula oxygen versus bubble continuous positive airway pressure are debated in children with pneumonia, with suggestions that randomized controlled trials are needed. In light of a previous randomized controlled trial showing a trend for lower mortality with bubble continuous positive airway pressure, we sought to determine the probability that a new randomized controlled trial would find high-flow nasal cannula oxygen superior to bubble continuous positive airway pressure through a "robust" Bayesian analysis...
February 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28152495/pancreatitis-panniculitis-and-polyarthritis-ppp-syndrome-caused-by-post-pancreatitis-pseudocyst-with-mesenteric-fistula-diagnosis-and-successful-surgical-treatment-case-report-and-review-of-literature
#18
Wulf Dieker, Johannes Derer, Thomas Henzler, Alexander Schneider, Felix Rückert, Torsten J Wilhelm, Bernd Krüger
INTRODUCTION: Pancreatitis, panniculitis and polyarthritis syndrome is a very rare extra-pancreatic complication of pancreatic diseases. PRESENTATION OF CASE: While in most cases this syndrome is caused by acute or chronic pancreatitis, we report a case of a 62-year-old man presenting with extensive intraosseous fat necrosis, polyarthritis and panniculitis caused by a post-pancreatitis pseudocyst with a fistula to the superior mesenteric vein and extremely high blood levels of lipase...
January 18, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28139107/-venous-aneurysms-associated-with-lymphatic-malformations
#19
V Núñez Cerezo, M I Romo Muñoz, J Jiménez Gómez, P Triana Junco, A Sánchez Galán, G Chocarro Amatriain, J C López Gutiérrez
OBJECTIVES: To analyze and describe the association between the development of venous aneurysms of the mayor vessels in patients with lymphatic malformations. MATERIAL AND METHODS: Retrospective review of patients diagnosed with both VA and LM from 1993 to 2014 and a descriptive analysis of clinical course was performed. RESULTS: We found 6 patients, 50% females, who had LM and VA confirmed with imaging techniques. All were diagnosed between 20 weeks- 12 years of age...
April 10, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/28138948/advances-in-production-and-applications-of-carbon-nanotubes
#20
REVIEW
Xilai Jia, Fei Wei
Recent decades have witnessed many breakthroughs in research on carbon nanotubes (CNTs), particularly regarding controllable synthesis, production scale-up, and application advances for this material. This sp (2)-bonded nanocarbon uniquely combines extreme mechanical strength, exceptionally high electrical conductivity, as well as many other superior properties, making it highly attractive for fundamental research and industrial applications. Synthesis and mass production form the solid basis for high-volume applications of CNTs...
February 2017: Topics in Current Chemistry (Journal)
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