keyword
MENU ▼
Read by QxMD icon Read
search

Coincidence detection

keyword
https://www.readbyqxmd.com/read/28074368/evaluation-of-2d-resistivity-imaging-technique-for-delineating-subsurface-seepage-of-hydrocarbon-contaminated-water-southeast-of-karbala-city-iraq
#1
Firas H Al-Menshed, Jassim M Thabit
2D imaging technique was applied in (8) transects near a pit of contaminated water near contaminated well southeast of Karbala city, Iraq. Each transect was 30 m long with 1 m electrode spacing. Data acquisition was fulfilled by using Wenner electrode array. The resistivity of water-contaminated zone is found less than 3Ω.m and the top dry zone recorded relatively high resistivity (more than 170Ω.m). It is found that the greatest amount of seepage was found moving towards northeast direction coincided with groundwater movement direction, whereas there was no movement towards northwest and southeast directions and restricted on the closest areas to the pit location...
January 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28073532/toxigenic-algae-and-associated-phycotoxins-in-two-coastal-embayments-in-the-ebro-delta-nw-mediterranean
#2
Julia A Busch, Karl B Andree, Jorge Diogène, Margarita Fernández-Tejedor, Kerstin Toebe, Uwe John, Bernd Krock, Urban Tillmann, Allan D Cembella
Harmful Algal Bloom (HAB) surveillance is complicated by high diversity of species and associated phycotoxins. Such species-level information on taxonomic affiliations and on cell abundance and toxin content is, however, crucial for effective monitoring, especially of aquaculture and fisheries areas. The aim addressed in this study was to determine putative HAB taxa and related phycotoxins in plankton from aquaculture sites in the Ebro Delta, NW Mediterranean. The comparative geographical distribution of potentially harmful plankton taxa was established by weekly field sampling throughout the water column during late spring-early summer over two years at key stations in Alfacs and Fangar embayments within the Ebro Delta...
May 2016: Harmful Algae
https://www.readbyqxmd.com/read/28069010/nanoparticle-exposure-reactivates-latent-herpesvirus-and-restores-a-signature-of-acute-infection
#3
Christine Sattler, Franco Moritz, Shanze Chen, Beatrix Steer, David Kutschke, Martin Irmler, Johannes Beckers, Oliver Eickelberg, Philippe Schmitt-Kopplin, Heiko Adler, Tobias Stoeger
BACKGROUND: Inhalation of environmental (nano) particles (NP) as well as persistent herpesvirus-infection are potentially associated with chronic lung disease and as both are omnipresent in human society a coincidence of these two factors is highly likely. We hypothesized that NP-exposure of persistently herpesvirus-infected cells as a second hit might disrupt immune control of viral latency, provoke reactivation of latent virus and eventually lead to an inflammatory response and tissue damage...
January 10, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28062492/poliovirus-receptor-related-2-a-cholesterol-responsive-gene-affecting-atherosclerosis-development-by-modulating-leukocyte-migration
#4
Aránzazu Rossignoli, Ming-Mei Shang, Hanna Gladh, Christine Moessinger, Hassan Foroughi Asl, Husain Ahammad Talukdar, Oscar Franzén, Steffen Mueller, Johan L M Björkegren, Erika Folestad, Josefin Skogsberg
OBJECTIVE: Recently, poliovirus receptor-related 2 (Pvrl2) emerged as a top gene in a global gene expression study aiming to detect plasma cholesterol-responsive genes causally related to atherosclerosis regression in hypercholesterolemic mice. PVRL2 is an adherens junction protein implied to play a role in transendothelial migration of leukocytes, a key feature in atherosclerosis development. In this study, we investigated the effect of Pvrl2 deficiency on atherosclerosis development and transendothelial migration of leukocytes activity...
January 5, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28061500/collision-tumor-composed-of-meningioma-and-cavernoma
#5
Jens Weigel, Markus Neher, Michael Schrey, Peter H Wünsch, Hans-Herbert Steiner
A true collision tumor is a rare entity composed of two histologically distinct neoplasms coinciding in the same organ. This paper reports a unique case of cerebral collision tumor consisting of two benign components. On the first hand, meningioma which is usually a benign lesion arising from the meningothelial cell in the arachnoidal membrane. On the other, cerebral cavernoma which is a well-circumscribed, benign vascular hamartoma within the brain. To our knowledge, there is no previously documented case of cerebral collision tumor consisting of two benign components...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28056961/rope-based-oral-fluid-sampling-for-early-detection-of-classical-swine-fever-in-domestic-pigs-at-group-level
#6
Klaas Dietze, Anna Tucakov, Tatjana Engel, Sabine Wirtz, Klaus Depner, Anja Globig, Robert Kammerer, Susan Mouchantat
BACKGROUND: Non-invasive sampling techniques based on the analysis of oral fluid specimen have gained substantial importance in the field of swine herd management. Methodological advances have a focus on endemic viral diseases in commercial pig production. More recently, these approaches have been adapted to non-invasive sampling of wild boar for transboundary animal disease detection for which these effective population level sampling methods have not been available. In this study, a rope-in-a-bait based oral fluid sampling technique was tested to detect classical swine fever virus nucleic acid shedding from experimentally infected domestic pigs...
January 5, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28052456/frontoparietal-activation-during-visual-conjunction-search-effects-of-bottom-up-guidance-and-adult-age
#7
David J Madden, Emily L Parks, Catherine W Tallman, Maria A Boylan, David A Hoagey, Sally B Cocjin, Micah A Johnson, Ying-Hui Chou, Guy G Potter, Nan-Kuei Chen, Lauren E Packard, Rachel E Siciliano, Zachary A Monge, Michele T Diaz
We conducted functional magnetic resonance imaging (fMRI) with a visual search paradigm to test the hypothesis that aging is associated with increased frontoparietal involvement in both target detection and bottom-up attentional guidance (featural salience). Participants were 68 healthy adults, distributed continuously across 19 to 78 years of age. Frontoparietal regions of interest (ROIs) were defined from resting-state scans obtained prior to task-related fMRI. The search target was defined by a conjunction of color and orientation...
January 4, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28052129/imaging-radiation-induced-gastrointestinal-bone-marrow-injury-and-recovery-kinetics-using-18f-fdg-pet
#8
Tien T Tang, David A Rendon, Janice A Zawaski, Solmaz F Afshar, Caterina K Kaffes, Omaima M Sabek, M Waleed Gaber
Positron emission tomography using 18F-Fluro-deoxy-glucose (18F-FDG) is a useful tool to detect regions of inflammation in patients. We utilized this imaging technique to investigate the kinetics of gastrointestinal recovery after radiation exposure and the role of bone marrow in the recovery process. Male Sprague-Dawley rats were either sham irradiated, irradiated with their upper half body shielded (UHBS) at a dose of 7.5 Gy, or whole body irradiated (WBI) with 4 or 7.5 Gy. Animals were imaged using 18F-FDG PET/CT at 5, 10 and 35 days post-radiation exposure...
2017: PloS One
https://www.readbyqxmd.com/read/28050431/asymptomatic-traumatic-hepatothorax-symptomatic-gall-stone-disease-a-rare-coincidence
#9
Somak Das, Dinesh Zirpe, Chandrasekharn Valiathan Gopakumar, Sudeepta Kumar Swain, Rajagopal Surendran
Traumatic diaphragmatic hernia rarely affects right side due to protective effect of liver. In adult it is mainly caused by blunt abdominal trauma. Acute presentations are often life threatening and usually clinch the diagnosis early. It may remain asymptomatic for many years unless being detected incidentally during investigations for some unrelated reason or getting complicated by some pathology of herniated viscera. High degree of suspicion is required to detect this delayed presentation particularly in a post-trauma patient as this condition may require modifications in management...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28048377/su-g-iep4-14-prostate-brachytherapy-activity-measurement-and-source-localization-by-using-a-dual-photon-emission-computed-tomography-system-a-feasibility-study
#10
C Lin, Y Tsai, H Lin, K Chuang, C Chiang
PURPOSE: To monitor the activity distribution and needle position during and after implantation in operating rooms. METHODS: Simulation studies were conducted to assess the feasibility of measurement activity distribution and seed localization using the DuPECT system. The system consists of a LaBr3-based probe and planar detection heads, a collimation system, and a coincidence circuit. The two heads can be manipulated independently. Simplified Yb-169 brachytherapy seeds were used...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047905/su-f-t-493-an-investigation-into-the-feasibility-of-using-pipspro-software-with-film-for-linac-qa
#11
R Underwood
PURPOSE: To determine the feasibility of using radiochromic and radiographic film with Pipspro software for quality assurance of linear accelerators with no on-board imaging. METHODS: The linear accelerator being used is a Varian Clinac 21EX. All IGRT is performed using the BrainLab ExacTrac system. Because of the lack of on board imaging, certain monthly and annual TG-142 quality assurance tests are more difficult to perform and analyze to a high degree of accuracy...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046753/su-f-j-196-a-prototype-system-for-portal-imaging-for-intensity-modulated-neutron-therapy
#12
S St James, G Moffitt, D Argento, D DeWitt, R Miyaoka, R Stewart
PURPOSE: Fast neutron therapy is offered at the University of Washington Medical Center for treatment of selected cancers. The hardware and control systems of the UW Clinical Neutron Therapy System are undergoing upgrades to enable delivery of IMNT. To clinically implement IMNT, dose verification tools need to be developed. We propose a portal imaging system that relies on the creation of positron emitting isotopes ((11) C and (15) O) through (n, 2n) reactions with a PMMA plate placed below the patient...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28040045/compressive-spherical-beamforming-for-localization-of-incipient-tip-vortex-cavitation
#13
Youngmin Choo, Woojae Seong
Noises by incipient propeller tip vortex cavitation (TVC) are generally generated at regions near the propeller tip. Localization of these sparse noises is performed using compressive sensing (CS) with measurement data from cavitation tunnel experiments. Since initial TVC sound radiates in all directions as a monopole source, a sensing matrix for CS is formulated by adopting spherical beamforming. CS localization is examined with known source acoustic measurements, where the CS estimated source position coincides with the known source position...
December 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28038704/gata3-expression-in-clinically-useful-groups-of-breast-carcinoma-a-comparison-with-gcdfp15-and-mammaglobin-for-identifying-paired-primary-and-metastatic-tumors
#14
Yuqiong Yang, Shanming Lu, Wenqin Zeng, Shoucheng Xie, Shengjun Xiao
GATA3 has been recognized as the novel marker for identifying primary and metastatic breast carcinomas, consistently showing that GATA3 was significantly more sensitive than traditional markers gross cystic disease fluid protein 15 (GCDFP15) and mammaglobin (MGB). However, clinically useful groups of breast carcinomas status were not identified, which were determining appropriate treatment strategy, affecting the prognosis. In this study, we undertook a comparative study of the marker GATA3 and GCDFP15 and MGB in clinically useful groups of paired primary and metastatic breast cancer...
February 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28029793/entangled-photon-excited-fluorescence-in-organic-materials-an-ultrafast-coincidence-detector
#15
Oleg P Varnavski, Brian Pinsky, Theodore Goodson Iii
We report the fluorescence emission from organic systems selectively excited by entangled pairs of photons. We have demonstrated a linear dependence of this two-photon excited fluorescence on the excitation intensity which is a unique non-classical feature of two-photon interactions induced by entangled photons. The entangled photon induced fluorescence has been detected in several organic molecules possessing a high entangled photon absorption cross-section. By introducing a delay between signal and idler beams generated by spontaneous down conversion process in a nonlinear crystal we were able to follow the intensity of the entangled photon induced fluorescence as a function of the delay...
December 28, 2016: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28028178/c-flipl-modulated-wnt-beta-catenin-activation-via-association-with-tip49-protein
#16
Jing Zhang, Heng-Yi Jiang, Lin-Kai Zhang, Wen-Ling Xu, Yi-Ting Qiao, Xu-Guo Zhu, Wan Liu, Qian-Qian Zheng, Zi-Chun Hua
Cellular FLICE-like inhibitory protein (c-FLIPL) is a key inhibitory protein in the extrinsic apoptotic pathway. Recent studies showed that c-FLIPL could translocate into the nucleus and might be involved in the Wnt signaling pathway. The nuclear function of c-FLIPL was still unclear. Here we found a novel c-FLIPL-associated protein TIP49, which is a nuclear protein identified as a cofactor in the transcriptional regulation of β-catenin. They had co-localization in the nucleus and the DED domain of c-FLIPL was required for the association with TIP49...
December 27, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28025116/perceived-timing-of-a-postural-perturbation
#17
Julian Lupo, Michael Barnett-Cowan
Falling down is a common event that threatens the survival of an organism. Simple, yet sophisticated neural mechanisms allow for rapid detection of a fall as well as the generation of compensatory reflexes designed to prevent a fall. Fall awareness and preventative alerting devices could potentially mitigate the likelihood of a fall, however, relatively little is known about the perceived timing of a fall. Common anecdotal reports suggest that humans often describe distortions in their perception of time with very little recollection of what occurred during the fall...
December 24, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/28010888/dose-dependent-effects-of-morphine-on-lipopolysaccharide-lps-induced-inflammation-and-involvement-of-multixenobiotic-resistance-mxr-transporters-in-lps-efflux-in-teleost-fish
#18
Hélène Mottaz, Rene Schönenberger, Stephan Fischer, Rik I L Eggen, Kristin Schirmer, Ksenia J Groh
Opioid drugs, such as morphine (MO), detected in aquatic environments worldwide, may harm fish due to their semi-persistence and ability to potently interact with molecular targets conserved across vertebrates. Here, we established a waterborne bacterial lipopolysaccharide (LPS) challenge assay with zebrafish embryos as a model to investigate chemically-induced disruption of the innate immune system, and used it to study the effects of MO exposure. Exposure to 1 mg/L MO resulted in pronounced immunosuppression, reflected in downregulation of several inflammation-related genes, including myd88, trif, traf6, p38, nfκb2, il-1β, il-8 and ccl34a...
February 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28004837/the-de-and-fg-loops-of-the-hpv-major-capsid-protein-contribute-to-the-epitopes-of-vaccine-induced-cross-neutralising-antibodies
#19
Sara L Bissett, Anna Godi, Simon Beddows
The human papillomavirus (HPV) vaccines consist of major capsid protein (L1) virus-like particles (VLP) and are highly efficacious against the development of cervical cancer precursors attributable to oncogenic genotypes, HPV16 and HPV18. A degree of vaccine-induced cross-protection has also been demonstrated against genetically-related genotypes in the Alpha-7 (HPV18-like) and Alpha-9 (HPV16-like) species groups which is coincident with the detection of L1 cross-neutralising antibodies. In this study the L1 domains recognised by inter-genotype cross-neutralising antibodies were delineated...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28004392/a-critical-period-of-corticomuscular-and-emg-emg-coherence-detection-in-9-25-week-old-healthy-infants
#20
Anina Ritterband-Rosenbaum, Anna Herskind, Xi Li, Maria Willerslev-Olsen, Mikkel Damgaard Olsen, Simon Francis Farmer, Jens Bo Nielsen
The early postnatal development of functional corticospinal connections in human infants is not fully clarified. We used EEG and EMG to investigate the development of corticomuscular and intramuscular coherence as indicators of functional corticospinal connectivity in healthy infants aged 1-66 weeks. EEG was recorded over leg and hand area of motor cortex. EMG recordings were made from right ankle dorsiflexor and right wrist extensor muscles. Quantification of the amount of corticomuscular coherence in the 20-40 Hz frequency band showed a significantly larger coherence for infants aged 9-25 weeks compared to younger and older infants...
December 22, 2016: Journal of Physiology
keyword
keyword
58288
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"