keyword
MENU ▼
Read by QxMD icon Read
search

New

keyword
https://www.readbyqxmd.com/read/28549379/dynamically-tunable-plasmon-induced-transparency-in-on-chip-graphene-based-asymmetrical-nanocavity-coupled-waveguide-system
#1
Pingping Qiu, Weibin Qiu, Zhili Lin, Houbo Chen, Junbo Ren, Jia-Xian Wang, Qiang Kan, Jiao-Qing Pan
A graphene-based on-chip plasmonic nanostructure composed of a plasmonic bus waveguide side-coupled with a U-shaped and a rectangular nanocavities has been proposed and modeled by using the finite element method in this paper. The dynamic tunability of the plasmon-induced transparency (PIT) windows has been investigated. The results reveal that the PIT effects can be tuned via modifying the chemical potential of the nanocavities and plasmonic bus waveguide or by varying the geometrical parameters including the location and width of the rectangular nanocavity...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28549358/-complication-analysis-in-lisfranc-fracture-dislocation
#2
R J García-Renedo, A Carranza-Bencano, R Leal-Gómez, F Cámara-Arrigunaga
OBJECTIVE: To value the complications and sequels for patients with Lisfrancs fracture-luxation (FLL). MATERIAL AND METHODS: A transverse ambispective study of cohorts was realized of 83 patients by diagnosis of Lisfrancs fracture-luxation. There was in use a protocol of withdrawal of information with variables related to the injury, clinical, therapeutic parameters, complications and scales of clinical valuation. RESULTS: 66 patients (79...
November 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28549357/-hip-osteosynthesis-with-im-nail-lateral-decubitus-without-fracture-table
#3
V H Aguirre-Rodríguez, G Inzunza-Enríquez, O Bibiano-Escalante, F J Martínez-Ruiz, F S Valero-González
BACKGROUND: Hip fractures have increased in the last decades, mainly in elderly patients with osteoporosis. The incidence becomes in some countries up to 250 thousand new cases per year, generating millions for health systems costs, so it should be considered a public health problem. They are treated in supine position, with a fracture table, through a lateral approach. However, it is important to know that there are other techniques, which can dispense a table of fractures and in a different position...
November 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28549356/-a-cmo-achievement-new-legislature-about-developmental-dysplasia-of-the-hip
#4
R Frias-Austria, G García-Pinto
No Abstract available.
November 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28549354/the-facespan-the-perceptual-span-for-face-recognition
#5
Michael Papinutto, Junpeng Lao, Meike Ramon, Roberto Caldara, Sébastien Miellet
In reading, the perceptual span is a well-established concept that refers to the amount of information that can be read in a single fixation. Surprisingly, despite extensive empirical interest in determining the perceptual strategies deployed to process faces and an ongoing debate regarding the factors or mechanism(s) underlying efficient face processing, the perceptual span for faces-the Facespan-remains undetermined. To address this issue, we applied the gaze-contingent Spotlight technique implemented in an old-new face recognition paradigm...
May 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28549345/a-novel-synthetic-derivative-of-quercetin-8-trifluoromethyl-3-5-7-3-4-o-pentamethyl-quercetin-inhibits-bladder-cancer-growth-by-targeting-the-ampk-mtor-signaling-pathway
#6
Ting Tao, Caimei He, Jun Deng, Yanjun Huang, Qiongli Su, Mei Peng, Meiling Yi, Kwame Oteng Darko, Hui Zou, Xiaoping Yang
Quercetin is a naturally existing compound and shows attractive anticancer properties for a variety of solid tumors including glioma, bladder cancer, hepatocellular carcinoma, breast cancer, hematological malignancies and prostate carcinoma. However, these anticancer properties have not been clinically approved due to unclear mechanistic information and its low bioactivity. In our previous study, we elucidated that quercetin activates AMPK pathway which is the major mechanism for its unique anticancer effect in bladder cancer...
May 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28549336/evaluation-of-a-new-random-access-hbv-dna-molecular-assay-the-veris-hbv-assay
#7
Slim Fourati, Dominique Challine, Jean-Dominique Poveda, Syria Laperche, Sandrine Rallier, Jean-Michel Pawlotsky, Stéphane Chevaliez
BACKGROUND: Detection and quantification of HBV DNA are essential to diagnose chronic HBV infection, monitor the virological response to treatment and the possible selection of resistant viruses in order to tailor therapy. The VERIS/MDx System HBV Assay is a random-access system that quantifies HBV DNA in clinical samples using unique single sample and reagent access during the workflow process without the need to reload other tests and delivers results within 1.2h following sampling...
May 17, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28549333/endoplasmic-reticulum-er-stress-and-camp-pka-pathway-mediated-zn-induced-hepatic-lipolysis
#8
Yu-Feng Song, Christer Hogstrand, Chuan-Chuan Wei, Kun Wu, Ya-Xiong Pan, Zhi Luo
The present study was performed to determine the effect of Zn exposure influencing endoplasmic reticulum (ER) stress, explore the underlying molecular mechanism of Zn-induced hepatic lipolysis in a fish species of significance for aquaculture, yellow catfish Pelteobagrus fulvidraco. We found that waterborne Zn exposure evoked ER stress and unfolded protein response (UPR), and activated cAMP/PKA pathway, and up-regulated hepatic lipolysis. The increase in ER stress and lipolysis were associated with activation of cAMP/PKA signaling pathway...
May 23, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28549325/graphene-oxide-in-the-water-environment-could-affect-tetracycline-antibiotic-resistance
#9
Mei-Ting Guo, Guo-Sheng Zhang
In recent years, the influence of new materials like nanoparticles in the water environment on biological substances has been widely studied. Antibiotic resistance genes (ARGs) represent a new type of pollutant in the environment. Graphene oxide (GO), as a nano material, because of its unique structure, may have an impact on antibiotic resistance bacteria (ARB) and ARGs; however the research in this area is rarely reported. Therefore, this study mainly investigated the effects of GO on bacterial antibiotic resistance...
May 3, 2017: Chemosphere
https://www.readbyqxmd.com/read/28549321/studies-on-free-radical-scavenging-cancer-cell-antiproliferation-and-calf-thymus-dna-interaction-of-schiff-bases
#10
Cleiton M da Silva, Marina M Silva, Fabiano S Reis, Ana Lúcia T G Ruiz, João E de Carvalho, Josué C C Santos, Isis M Figueiredo, Rosemeire B Alves, Luzia V Modolo, Ângelo de Fátima
Thirty-nine Schiff bases were synthesized by performing microwave-assisted condensation of the corresponding aldehydes and aromatic amines. Their reactive nitrogen species (RNS) scavenging activity and inhibitory effects against cancer cell growth were then subsequently investigated. Additionally, the interaction between the calf thymus DNA (ctDNA) and selected Schiff bases was evaluated using fluorescence spectroscopy, and their binding parameters were determined. The yields of the various compounds ranged from moderate to excellent (43-99%) after only a 2-min reaction...
May 17, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28549320/light-emission-miracle-in-the-sea-and-preeminent-applications-of-bioluminescence-in-recent-new-biotechnology
#11
Sana Sharifian, Ahmad Homaei, Roohullah Hemmati, Khosro Khajeh
Bioluminescence is referred to the light emission by a living organism due to a specific biochemical reaction. This interesting feature of the organisms could highly influences behavioral and ecosystem dynamics. Luminescence, mostly observed in marine species, is generally higher in deep-living genera than in benthic or shallow organisms. However, among creatures living in land, fireflies, beetles, springtails and fungi have shown some bioluminescent activities. Classically, the emission of light is catalyzed by luciferase from a substrate...
May 17, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28549313/the-persistent-shadow-of-suicide-ideation-and-attempts-in-a-high-risk-group-of-psychiatric-patients-a-focus-for-intervention
#12
Jane G Tillman, A Jill Clemence, Robyn Cree, Katie C Lewis, Jennifer L Stevens, David Reiss
OBJECTIVE: Patients with a history of suicidal ideation or attempts, especially if they have serious psychopathology with repeated hospitalizations, are burdened by ongoing risk for suicide. We studied this high-risk group to assess their psychological status following their most recent suicide attempt, in contrast to equally ill patients without a suicide history. Further, among suicidal patients, we compared those with only ideation, with a non-medically serious suicide attempt and with medically serious suicide attempts...
May 18, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28549309/switching-between-intravenous-and-subcutaneous-trastuzumab-safety-results-from-the-prefher-trial
#13
Joseph Gligorov, Giuseppe Curigliano, Volkmar Müller, Ann Knoop, Valerie Jenkins, Sunil Verma, Stuart Osborne, Sabine Lauer, Zuzana Machackova, Lesley Fallowfield, Xavier Pivot
AIM: To assess the safety and tolerability of switching between subcutaneous (SC) and intravenous (IV) trastuzumab in the PrefHer study (NCT01401166). PATIENTS AND METHODS: Patients with HER2-positive early breast cancer completed (neo)adjuvant chemotherapy and were randomised to receive four cycles of SC trastuzumab, via single-use injection device (SID; Cohort 1) or hand-held syringe (Cohort 2), followed by four cycles of IV, or vice versa (the crossover period presented here) as part of their 18 standard cycles of adjuvant trastuzumab treatment...
May 23, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28549306/pretreatment-of-corn-stover-by-solid-acid-for-d-lactic-acid-fermentation
#14
Xiqing Wang, Gang Wang, Xiaoxiao Yu, Huan Chen, Yang Sun, Guang Chen
Solid acid is a new acid that is safe and green, which has been widely used in the fields of acid pickling. In this study, we adopted solid acid to pretreat corn stover and used the pretreated corn stover in the fermentation of d-lactic acid. Finally, we obtained optimal conditions for the pretreatment of corn stover by solid acid: digestion temperature of 120°C, digestion time of 80min, and solid acid concentration of 1.5%. Then adding cellulase of 30FPU/g, the conversion rate of glucose reached 71.06% after enzymatic hydrolysis for 72h...
April 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28549301/ecotoxicological-effect-of-ketamine-evidence-of-acute-chronic-and-photolysis-toxicity-to-daphnia-magna
#15
Shih-Wei Li, Yu-Hsiang Wang, Angela Yu-Chen Lin
Ketamine has been increasingly used in medicine and has the potential for abuse or illicit use around the world. Ketamine cannot be removed by conventional wastewater treatment plants. Although ketamine and its metabolite norketamine have been detected to a significant degree in effluents and aquatic environments, their ecotoxicity effects in aquatic organisms remain undefined. In this study, we investigated the acute toxicity of ketamine and its metabolite, along with the chronic reproductive toxicity of ketamine (5-100μg/L) to Daphnia magna...
May 23, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28549292/globally-supported-radial-basis-function-based-collocation-method-for-evolution-of-level-set-in-mass-segmentation-using-mammograms
#16
Kanchan Lata Kashyap, Manish Kumar Bajpai, Pritee Khanna
Computer-aided detection systems play an important role for the detection of breast abnormalities using mammograms. Global segmentation of mass in mammograms is a complex process due to low contrast mammogram images, irregular shape of mass, speculated margins, and the presence of intensity variations of pixels. This work presents a new approach for mass detection in mammograms, which is based on the variational level set function. Mesh-free based radial basis function (RBF) collocation approach is employed for the evolution of level set function for segmentation of breast as well as suspicious mass region...
May 15, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28549274/mechanisms-and-risk-of-cumulative-impacts-to-coastal-ecosystem-services-an-expert-elicitation-approach
#17
Gerald G Singh, Jim Sinner, Joanne Ellis, Milind Kandlikar, Benjamin S Halpern, Terre Satterfield, Kai M A Chan
Coastal environments are some of the most populated on Earth, with greater pressures projected in the future. Managing coastal systems requires the consideration of multiple uses, which both benefit from and threaten multiple ecosystem services. Thus understanding the cumulative impacts of human activities on coastal ecosystem services would seem fundamental to management, yet there is no widely accepted approach for assessing these. This study trials an approach for understanding the cumulative impacts of anthropogenic change, focusing on Tasman and Golden Bays, New Zealand...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549267/the-construction-of-a-novel-nucleic-acids-detection-microplatform-based-on-the-nset-for-one-step-detecting-tk1-dna-and-microrna-21
#18
Jian Zhang, Qian Zhao, Yudong Wu, Bo Zhang, Weipan Peng, Jiafang Piao, Yurui Zhou, Weichen Gao, Xiaoqun Gong, Jin Chang
Microbeads-based microchip technology has become the potential for a new generation of nucleic acids detection in a high-throughput and sensitive manner. However the specificity and operational complexity limit the microchip applied in nucleic acids detection. Herein, in this work, we designed a kind of gold-nanoparticles coated polystyrene microbeads as microplatform conjugating with the molecular beacons as probes. Due to the nanoparticle surface energy transfer of gold-nanoparticles, the fluorescence of dye on one end of molecular beacons was effectively quenched...
May 23, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28549266/self-cascade-reaction-catalyzed-by-cuo-nanoparticle-based-dual-functional-enzyme-mimics
#19
Ai-Ling Hu, Hao-Hua Deng, Xiao-Qing Zheng, Yan-Yu Wu, Xiu-Ling Lin, Ai-Lin Liu, Xing-Hua Xia, Hua-Ping Peng, Wei Chen, Guo-Lin Hong
It is desirable but challenging to assemble various biomimetic properties into a functional catalytic cascade system. In this work, cupric oxide nanoparticles were investigated as oxidase mimics for the aerobic oxidation of cysteine to cystine with the generation of hydrogen peroxide. Coupling this property with the peroxidase-like activity of CuO nanoparticles, we constructed a self-organized cascade reaction system based on a single-component nanozyme, which includes the oxidation of cysteine to yield cystine and hydrogen peroxide and the hydrogen peroxide-mediated oxidation of terephthalic acid to produce a fluorescence change...
May 19, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28549265/facile-screening-of-potential-xenoestrogens-by-an-estrogen-receptor-based-reusable-optical-biosensor
#20
Lanhua Liu, Xiaohong Zhou, Yun Lu, Didi Shan, Bi Xu, Miao He, Hanchang Shi, Yi Qian
The apparent increase in hormone-induced cancers and disorders of the reproductive tract has led to a growing demand for new technologies capable of screening xenoestrogens. We reported an estrogen receptor (ER)-based reusable fiber biosensor for facile screening estrogenic compounds in environment. The bioassay is based on the competition of xenoestrogens with 17β-estradiol (E2) for binding to the recombinant receptor of human estrogen receptor α (hERα) protein, leaving E2 free to bind to fluorophore-labeled anti-E2 monoclonal antibody...
May 18, 2017: Biosensors & Bioelectronics
keyword
keyword
4310
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"