keyword
MENU ▼
Read by QxMD icon Read
search

POC

keyword
https://www.readbyqxmd.com/read/28212418/experimental-evidence-of-formation-of-transparent-exopolymer-particles-tep-and-poc-export-provoked-by-dust-addition-under-current-and-high-pco2-conditions
#1
Justine Louis, Maria Luiza Pedrotti, Frédéric Gazeau, Cécile Guieu
The evolution of organic carbon export to the deep ocean, under anthropogenic forcing such as ocean warming and acidification, needs to be investigated in order to evaluate potential positive or negative feedbacks on atmospheric CO2 concentrations, and therefore on climate. As such, modifications of aggregation processes driven by transparent exopolymer particles (TEP) formation have the potential to affect carbon export. The objectives of this study were to experimentally assess the dynamics of organic matter, after the simulation of a Saharan dust deposition event, through the measurement over one week of TEP abundance and size, and to evaluate the effects of ocean acidification on TEP formation and carbon export following a dust deposition event...
2017: PloS One
https://www.readbyqxmd.com/read/28211003/an-easy-to-build-low-budget-point-of-care-ultrasound-simulator-from-linux-to-a-web-based-solution
#2
Domagoj Damjanovic, Ulrich Goebel, Benedikt Fischer, Martin Huth, Hartmut Breger, Hartmut Buerkle, Axel Schmutz
BACKGROUND: Hands-on training in point-of-care ultrasound (POC-US) should ideally comprise bedside teaching, as well as simulated clinical scenarios. High-fidelity phantoms and portable ultrasound simulation systems are commercially available, however, at considerable costs. This limits their suitability for medical schools. A Linux-based software for Emergency Department Ultrasound Simulation (edus2TM) was developed by Kulyk and Olszynski in 2011. Its feasibility for POC-US education has been well-documented, and shows good acceptance...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28208837/projections-onto-convex-sets-super-resolution-reconstruction-based-on-point-spread-function-estimation-of-low-resolution-remote-sensing-images
#3
Chong Fan, Chaoyun Wu, Grand Li, Jun Ma
To solve the problem on inaccuracy when estimating the point spread function (PSF) of the ideal original image in traditional projection onto convex set (POCS) super-resolution (SR) reconstruction, this paper presents an improved POCS SR algorithm based on PSF estimation of low-resolution (LR) remote sensing images. The proposed algorithm can improve the spatial resolution of the image and benefit agricultural crop visual interpolation. The PSF of the highresolution (HR) image is unknown in reality. Therefore, analysis of the relationship between the PSF of the HR image and the PSF of the LR image is important to estimate the PSF of the HR image by using multiple LR images...
February 13, 2017: Sensors
https://www.readbyqxmd.com/read/28208248/development-of-a-sers-based-rapid-vertical-flow-assay-for-point-of-care-diagnostics
#4
O J R Clarke, B L Goodall, H P Hui, N Vats, C L Brosseau
Point-of-care (POC) diagnostic testing platforms are a growing sector of the healthcare industry as they offer the advantages of rapid provision of results, ease of use, reduced cost, and the ability to link patients to care. While many POC tests are based on chromatographic flow assay technology, this technology suffers from a lack of sensitivity along with limited capacity for multiplexing and quantitative analysis. Several recent reports have begun to investigate the feasibility of coupling chromatographic flow platforms to more advanced read-out technologies which in turn enable on-site acquisition, storage, and transmission of important healthcare metrics...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28207238/real-time-monitoring-of-post-surgical-and-post-traumatic-eye-injuries-using-multi-layered-electrical-biosensor-chip
#5
Muhammad Shuja Khan, Santosh K Misra, Aaron Schwartz-Duval, Enrique A Daza, Fatemeh Ostadhossein, Matthew Bowman, Akshay Jain, Gina Taylor, Deana McDonagh, Leanne T Labriola, Dipanjan Pan
Lack of current techniques for the early monitoring of bleb leaks and other post-traumatic or post-surgical ocular injury has posed an unmet clinical need for the development of new techniques. Present evaluation techniques use either subjective or non-quantitative approaches. At present, there are no FDA approved ocular devices that can directly measure ascorbic acid (AA) concentration levels for both tear film (TF) and aqueous humor (AH) at point-of-care (POC) level. Toward this aim, we present a novel point-of-care (POC) quantitative assay, called the Ocular Biosensor device, which can be used to evaluate the integrity of the anterior surface of the eye by measuring the concentration of AA in TF and AH...
February 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28203309/a-recurrent-case-of-pentalogy-of-cantrell-a-rare-case-with-sonological-findings-and-review-of-literature
#6
Srinivas M Naren Satya, Kamala Retnam Mayilvaganan, Ivvala Sai Prathyusha, Munnangi Satya Gautam, Deepthi Raidu, V N Amogh
BACKGROUND: Pentalogy of Cantrell (POC) is an extremely rare and complex congenital anomaly. Ultrasound is a valuable, safe, nonionizing, cost effective, widely available, and easily reproducible imaging tool and is indispensible in the diagnosis of POC. Despite the rarity of POC, it is imperative for a radiologist to be aware of its wide spectrum of presentation on ultrasound in first trimester of gestation. Most reported cases in literature till now have been sporadic. In this paper, we aimed to report for the first time in literature, a recurrent case of POC detected in the first trimester in a mother whose previous pregnancy also was terminated in the second trimester medically due to the ultrasound diagnosis of POC...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28197269/measuring-b-type-natriuretic-peptide-from-capillary-blood-or-venous-sample-is-it-the-same
#7
Renato De Vecchis, Carmelina Ariano
BACKGROUND: In recent years, several systems have been implemented to achieve quick and non-invasive measurements of B-type natriuretic peptide (BNP). Among them, Alere(TM) Heart Check (AHC) BNP test represents the most recent advancement. It is a rapid point-of-care (POC) immunoassay, projected for measuring BNP directly from a capillary whole blood sample. This study aimed at comparing the analytical and clinical performances of this new POC to our reference method (Abbott Architect System)...
April 2016: Cardiology Research
https://www.readbyqxmd.com/read/28194453/a-paper-based-platform-for-detection-of-viral-rna
#8
Daohong Zhang, David Broyles, Eric A Hunt, Emre Dikici, Sylvia Daunert, Sapna K Deo
Viral detection presents a host of challenges for even the most sensitive analytical techniques, and the complexity of common detection platforms typically preclude portability. With these considerations in mind, we designed a paper microzone plate-based virus detection system for the detection of viral genetic material that can be performed with simple instruments. The sensing system can detect viral cDNA reverse-transcribed from total RNA extraction by utilizing a biotinylated capture probe and an Alexa Fluor® 647-labeled reporter probe...
February 14, 2017: Analyst
https://www.readbyqxmd.com/read/28185665/-rapid-diagnosis-in-serology
#9
Isabel García-Bermejo, Fernando de Ory
Serological diagnosis of acute phase infections implies the detection of IgM specific response, an effective marker of primary infection, but with less clinical significance in reactivations or reinfections. The aim of this article is to provide an updated view of the rapid diagnosis in serology by detecting the IgM isotype and reviewing its applications and limitations. Point-of-care (PoC) tests are analyzed. PoC tests are used in geographical areas where traditional tests are not available, as well as in other circumstances where their use brings the diagnosis directly to the target population...
February 6, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/28181908/effects-of-endogenous-cardioprotective-mechanisms-on-ischemia-reperfusion-injury
#10
Marcin Kunecki, Wojciech Płazak, Piotr Podolec, Krzysztof S Gołba
Ischemic heart disease have been remarked as a leading cause of morbidity and mortality in adults. Early restoration of cardiac perfusion is necessary to restore perfusion of ischemic heart muscle. Effective revascularization reduce mortality by limiting myocardial necrosis at the acute phase of the cardiac infarction. However, reperfusion may induce a cascade of pathophysiological reactions causing the increase of the infarct area of the myocardium This phenomenon known as ischemia-reperfusion injury is responsible for up to 50% of the final infarct size...
January 10, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28181704/evaluation-of-the-safety-of-endoscopic-radiofrequency-ablation-for-malignant-biliary-stricture-using-a-digital-peroral-cholangioscope-with-videos
#11
Takeshi Ogura, Saori Onda, Tastsushi Sano, Wataru Takagi, Astushi Okuda, Akira Miyano, Nobu Nishioka, Miyuki Imanishi, Mio Amano, Daisuke Masuda, Kazuhide Higuchi
OBJECTIVES: The clinical impact of catheter based radiofrequency ablation (RFA) under ERCP guidance has been recently reported, however severe adverse events have also been noted. If tumor is not present in the biliary tract, severe adverse events such as perforation or bleeding due to vessel injury around the biliary tract may occur. In addition, the effectiveness of RFA may not be sufficient based solely on radiographic guidance. The aim of this study was to evaluate the actual feasibility of intraductal RFA by peroral cholangioscope (POCS) evaluation before/after RFA...
February 9, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28169116/utilization-and-effectiveness-of-desmopressin-acetate-after-cardiac-surgery-supplemented-with-point-of-care-hemostatic-testing-a-propensity-score-matched-analysis
#12
David Orlov, Stuart A McCluskey, Jeannie Callum, Vivek Rao, Jacobo Moreno, Keyvan Karkouti
OBJECTIVES: To explore the utilization pattern and hemostatic effectiveness of desmopressin acetate (DDAVP) supplemented with point-of-care (POC) hemostatic testing in contemporary cardiac surgery. DESIGN: Retrospective, observational study. SETTING: Single quaternary care university hospital. PARTICIPANTS: The study comprised 2,468 consecutive patients undergoing cardiac surgery-1,237 before and 1,231 after the introduction of POC testing...
November 17, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28168385/postoperative-complications-after-breast-cancer-surgery-are-not-related-to-age
#13
Britt Ten Wolde, Michelle Kuiper, Johannes H W de Wilt, Luc J A Strobbe
INTRODUCTION: Consensus about surgical treatment options for breast cancer in elderly patients remains elusive due to exclusion from clinical trials. Fear of complications due to increased age often is an important factor in the choice of treatment and might result in different treatment of the older patient. METHODS: A total of 1258 female patients who underwent breast cancer surgery for primary diagnosed breast cancer in 2010-2014 were included. Incidence of postoperative complications (POCs) was compared between the younger (18-70 years, N = 1008) and older (≥71 years, N = 250) patients...
February 6, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28167769/multifunctional-inexpensive-and-reusable-nanoparticle-printed-biochip-for-cell-manipulation-and-diagnosis
#14
Rahim Esfandyarpour, Matthew J DiDonato, Yuxin Yang, Naside Gozde Durmus, James S Harris, Ronald W Davis
Isolation and characterization of rare cells and molecules from a heterogeneous population is of critical importance in diagnosis of common lethal diseases such as malaria, tuberculosis, HIV, and cancer. For the developing world, point-of-care (POC) diagnostics design must account for limited funds, modest public health infrastructure, and low power availability. To address these challenges, here we integrate microfluidics, electronics, and inkjet printing to build an ultra-low-cost, rapid, and miniaturized lab-on-a-chip (LOC) platform...
February 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28161128/point-of-care-testing-improves-diabetes-management-in-a-primary-care-clinic-in-south-africa
#15
Lara A Motta, Mark D S Shephard, Julie Brink, Stefan Lawson, Paul Rheeder
INTRODUCTION: Diabetes is a major health problem in South Africa. DiabCare Africa found just 47% of diabetes patients had a hemoglobin A1c (HbA1c) test for their management in the previous year. METHODS: Patients attending an urban diabetes clinic near Johannesburg, run by Project HOPE, accessed HbA1c (and urine albumin:creatinine ratio) point-of-care testing (POCT) as part of a quality-assured international program called ACE (Analytical and Clinical Excellence)...
February 1, 2017: Primary Care Diabetes
https://www.readbyqxmd.com/read/28159916/impact-of-deploying-multiple-point-of-care-tests-with-a-sample-first-approach-on-a-sexual-health-clinical-care-pathway-a-service-evaluation
#16
Emma M Harding-Esch, Achyuta V Nori, Aseel Hegazi, Marcus J Pond, Olanike Okolo, Anthony Nardone, Catherine M Lowndes, Phillip Hay, S Tariq Sadiq
OBJECTIVES: To assess clinical service value of STI point-of-care test (POCT) use in a 'sample first' clinical pathway (patients providing samples on arrival at clinic, before clinician consultation). Specific outcomes were: patient acceptability; whether a rapid nucleic acid amplification test (NAAT) for Chlamydia trachomatis/Neisseria gonorrhoeae (CT/NG) could be used as a POCT in practice; feasibility of non-NAAT POCT implementation for Trichomonas vaginalis (TV) and bacterial vaginosis (BV); impact on patient diagnosis and treatment...
February 3, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28155933/nanomaterials-modified-cellulose-paper-as-a-platform-for-biosensing-applications
#17
Shenguang Ge, Lina Zhang, Yan Zhang, Feifei Lan, Mei Yan, Jinghua Yu
Recently, paper substrates have attracted tremendous interest from both academia and industry. Not only is paper highly abundant and portable, it is lightweight, disposable, easy-to-use, and can be rolled or folded into 3D configurations. More importantly, with a unique porous bulk structure and rough and absorptive surface properties, the construction of nanomaterials-functionalized cellulose has enabled cellulose paper to be applied for point-of-care (POC) paper devices with reasonably good performance at low cost...
February 3, 2017: Nanoscale
https://www.readbyqxmd.com/read/28153277/paper-based-capacitive-sensors-for-identification-and-quantification-of-chemicals-at-the-point-of-care
#18
Jie Hu, Chee-Hong Takahiro Yew, Xiaoshuang Chen, Shangsheng Feng, Qu Yang, Shuqi Wang, Wei-Hong Wee, Belinda Pingguan-Murphy, Tian Jian Lu, Feng Xu
The identification and quantification of chemicals play a vital role in evaluation and surveillance of environmental health and safety. However, current techniques usually depend on costly equipment, professional staff, and/or essential infrastructure, limiting their accessibility. In this work, we develop paper-based capacitive sensors (PCSs) that allow simple, rapid identification and quantification of various chemicals from microliter size samples with the aid of a handheld multimeter. PCSs are low-cost parallel-plate capacitors (~$0...
April 1, 2017: Talanta
https://www.readbyqxmd.com/read/28151484/berbamine-postconditioning-protects-the-heart-from-ischemia-reperfusion-injury-through-modulation-of-autophagy
#19
Yanjun Zheng, Shanshan Gu, Xuxia Li, Jiliang Tan, Shenyan Liu, Yukun Jiang, Caimei Zhang, Ling Gao, Huang-Tian Yang
Pretreatment of berbamine protects the heart from ischemia/reperfusion (I/R) injury. However it is unknown whether it has cardioprotection when given at the onset of reperfusion (postconditioning (PoC)), a protocol with more clinical impact. Autophagy is upregulated in I/R myocardium and exacerbates cardiomyocyte death during reperfusion. However, it is unknown whether the autophagy during reperfusion is regulated by berbamine. Here we investigated whether berbamine PoC (BMPoC) protects the heart through regulation of autophagy by analyzing the effects of BMPoC on infarct size and/or cell death, functional recovery and autophagy in perfused rat hearts and isolated cardiomyocytes subjected to I/R...
February 2, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28146012/identification-of-optic-nerve-swelling-using-point-of-care-ocular-ultrasound-in-children
#20
Ronald F Marchese, Rakesh D Mistry, Gil Binenbaum, Grant T Liu, Richard J Scarfone, Ashley L Woodford, Aaron E Chen
OBJECTIVE: The aim of this study was to determine the feasibility and accuracy of point-of-care (POC) ocular ultrasound (US) when performed by a pediatric emergency medicine (PEM) physician to detect optic nerve abnormalities concerning for swelling, as compared with the fundus examination performed by an ophthalmologist. METHODS: This was a single-center, prospective cohort pilot study of children aged 12 months to 18 years who required optic disc evaluation by an ophthalmologist...
January 31, 2017: Pediatric Emergency Care
keyword
keyword
88062
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"