keyword
MENU ▼
Read by QxMD icon Read
search

fluid critical

keyword
https://www.readbyqxmd.com/read/29453259/common-hydraulic-fracturing-fluid-additives-alter-the-structure-and-function-of-anaerobic-microbial-communities
#1
Adam C Mumford, Denise M Akob, J Grace Klinges, Isabelle M Cozzarelli
The development of unconventional oil and gas (UOG) resources results in production of large volumes of wastewater containing a complex mixture of hydraulic fracturing chemical additives and components from the formation. Release of these wastewaters into the environment poses potential risks that are poorly understood. Microbial communities in stream sediments form the base of the food chain, and may serve as sentinels for changes in stream health. Iron reducing organisms have been shown to play a role in the biodegradation of a wide range of organic compounds, and to evaluate their response to UOG wastewater, we enriched anaerobic microbial communities from sediments collected upstream (background) and downstream (impacted) of an UOG wastewater injection disposal facility in the presence of hydraulic fracturing fluid (HFF) additives: guar gum, ethylene glycol, and two biocides, DBNPA and Bronopol...
February 16, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29451509/-diagnosis-and-treatment-of-blood-volume-changes-in-acute-heart-failure-a-brief-practical-guide
#2
Paola Ciancetta, Salvatore M Maggiore, Flavia Petrini, Raffaele De Caterina
The correct management of acute heart failure continues to pose diagnostic and therapeutic challenges. In particular, administering the right type and dose of fluids and drugs, thus avoiding fluid overload while establishing organ perfusion, is of key importance in stabilizing critical patients and improving prognosis. A correct estimate of the fluid volume status, however, may be difficult, as the invasive evaluation of cardiac filling pressures by cardiac catheterization is limited in routine medical practice, and there is no universal consensus on the best tools for its non-invasive evaluation...
January 2018: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/29451421/bionanocomposite-scaffolds-based-on-chitosan-gelatin-and-nanodimensional-bioactive-glass-particles-in-vitro-properties-and-in-vivo-bone-regeneration
#3
Cristian Covarrubias, Monserrat Cádiz, Miguel Maureira, Isabel Celhay, Felipe Cuadra, Alfredo von Marttens
Bone repair bionanocomposite scaffolds were produced by incorporating dense bioactive glass nanoparticles or mesoporous bioactive glass nanospheres into a chitosan-gelatin polymer blend. The in vitro bioactivity of the scaffolds was assessed in simulated body fluid, and cell viability and osteogenic differentiation assays were performed with dental pulp stem cells. Bone regeneration properties of the scaffold materials were in vivo assessed by using a critical-sized femoral defect model in rat. The scaffold nanocomposites showed excellent cytocompatibility and ability to accelerate the crystallization of bone-like apatite in vitro...
January 1, 2018: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/29450609/effect-of-gantry-rotation-speed-and-scan-mode-on-peristalsis-motion-artifact-frequency-and-severity-at-abdominal-ct
#4
Rutwik Shah, Rhanna Khoram, Jack W Lambert, Yuxin Sun, Zhen J Wang, Emily M Webb, Benjamin M Yeh
PURPOSE: The purpose of the study was to understand the effect of CT gantry speed and axial vs. helical scan mode on the frequency and severity of bowel peristalsis artifacts. METHOD: We retrospectively identified 150 oncologic abdominopelvic CT scans obtained on a 256 slice CT scanner: 50 scans obtained with Axial mode and 0.5-s gantry rotation time (Slow-Axial); 50 with Axial mode and 0.28-s gantry rotation time (Fast-Axial); and 50 scans with Helical mode and 0...
February 15, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29448510/preparation-and-in-vivo-biodistribution-of-ultra-small-superparamagnetic-iron-oxide-nanoparticles-with-high-magnetic-targeting-response
#5
Xiaoyu Han, Pingping Yao, Chao Cheng, Hongmin Yuan, Yuxiang Yang, Chaoying Ni
The ultra-small superparamagnetic iron oxide (USPIO) particles with high saturation magnetization and good superparamagnetism were prepared by reverse micro-emulsions using novel C16E15 as surfactant, which can reduce magnetic dipole-dipole interaction, hence decreasing the critical blocking temperature (TB). Powder X-ray diffraction (XRD), Infrared spectrum (FT-IR), Transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), and Vibrating sample magnetometer (VSM) were used to characterize the magnetic particles...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29448330/structural-behavior-of-supercritical-fluids-under-confinement
#6
Kanka Ghosh, C V Krishnamurthy
The existence of the Frenkel line in the supercritical regime of a Lennard-Jones (LJ) fluid shown through molecular dynamics (MD) simulations initially and later corroborated by experiments on argon opens up possibilities of understanding the structure and dynamics of supercritical fluids in general and of the Frenkel line in particular. The location of the Frenkel line, which demarcates two distinct physical states, liquidlike and gaslike within the supercritical regime, has been established through MD simulations of the velocity autocorrelation (VACF) and radial distribution function (RDF)...
January 2018: Physical Review. E
https://www.readbyqxmd.com/read/29448125/a-critical-review-of-histopathological-findings-associated-with-endocrine-and-non-endocrine-hepatic-toxicity-in-fish-models
#7
REVIEW
Jeffrey C Wolf, James R Wheeler
Although frequently examined as a target organ for non-endocrine toxicity, histopathological evaluation of the liver is becoming a routine component of endocrine disruption studies that utilize various fish species as test subjects. However, the interpretation of microscopic liver findings can be challenging, especially when attempting to distinguish adverse changes associated with endocrine disrupting substances from those caused by systemic or direct hepatic toxicity. The purpose of this project was to conduct a critical assessment of the available peer-reviewed and grey literature concerning the histopathologic effects of reproductive endocrine active substances (EAS) and non-endocrine acting substances in the livers of fish models, and to determine if liver histopathology can be used to reliably distinguish endocrine from non-endocrine etiologies...
February 12, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29447908/primary-lymphedema-and-other-lymphatic-anomalies-are-associated-with-22q11-2-deletion-syndrome
#8
Marta Unolt, Jessica Barry, Maria Cristina Digilio, Bruno Marino, Anne Bassett, Erwin Oechslin, David W Low, Jean B Belasco, Staci Kallish, Kathleen Sullivan, Elaine H Zackai, Donna M McDonald-McGinn
BACKGROUND: Lymphedema is an abnormal accumulation of interstitial fluid within the tissues. Primary lymphedema is caused by aberrant lymphangiogenesis and it has been historically classified based on age at presentation. Although most cases are sporadic, primary lymphedema may be familial or present in association with chromosomal abnormalities and syndromic disorders. To the best of our knowledge, primary lymphedema has never been described in patients with 22q11.2 deletion syndrome...
February 12, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29447255/hydroxyethyl-starch-for-volume-expansion-after-subarachnoid-haemorrhage-and-renal-function-results-of-a-retrospective-analysis
#9
Sven Bercker, Tanja Winkelmann, Thilo Busch, Sven Laudi, Dirk Lindner, Jürgen Meixensberger
BACKGROUND: Hydroxyethyl starch (HES) was part of "triple-H" therapy for prophylaxis and therapy of vasospasm in patients with subarachnoid haemorrhage (SAH). The European Medicines Agency restricted the use of HES in 2013 due to an increase of renal failure in critically ill patients receiving HES compared to crystalloid fluids. The occurrence of renal insufficiency in patients with SAH due to HES is still uncertain. The purpose of our study was to evaluate whether there was an association with renal impairment in patients receiving HES after subarachnoid haemorrhage...
2018: PloS One
https://www.readbyqxmd.com/read/29447205/aggressive-fluid-accumulation-is-associated-with-acute-kidney-injury-and-mortality-in-a-cohort-of-patients-with-severe-pneumonia-caused-by-influenza-a-h1n1-virus
#10
Gustavo Alejandro Casas-Aparicio, Isabel León-Rodríguez, Rafael de Jesús Hernández-Zenteno, Manuel Castillejos-López, Claudia Alvarado-de la Barrera, Christopher E Ormsby, Gustavo Reyes-Terán
INTRODUCTION: Fluid accumulation is associated with adverse outcomes such as acute kidney injury (AKI) in critically ill patients. This study aimed to describe the factors associated with AKI in individuals with influenza A H1N1 severe pneumonia, and explore the relation of fluid accumulation with AKI and mortality. MATERIAL AND METHODS: We reviewed medical records of individuals with influenza A H1N1 severe pneumonia and no history of chronic kidney disease, attending a national referral center for respiratory diseases between November 2014 and May 2015...
2018: PloS One
https://www.readbyqxmd.com/read/29446991/fluid-structure-interaction-modeling-of-aneurysmal-arteries-under-steady-state-and-pulsatile-blood-flow-a-stability-analysis
#11
Mohammadali Sharzehee, Seyed Saeid Khalafvand, Hai-Chao Han
Tortuous aneurysmal arteries are often associated with a higher risk of rupture but the mechanism remains unclear. The goal of this study was to analyze the buckling and post-buckling behaviors of aneurysmal arteries under pulsatile flow. To accomplish this goal, we analyzed the buckling behavior of model carotid and abdominal aorta with aneurysms by utilizing fluid-structure interaction (FSI) method with realistic waveforms boundary conditions. FSI simulations were done under steady-state and pulsatile flow for normal (1...
February 15, 2018: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/29446655/micrornas-as-molecular-targets-of-quercetin-and-its-derivatives-underlying-their-biological-effects-a-preclinical-strategy
#12
Dan Wang, Dongxiao Sun-Waterhouse, Feng Li, Li Xin, Dapeng Li
Quercetin is a well-known flavonoid naturally occurring in most of the plant foods and is often found in the human diet. It can act as a potent antioxidant and anti-inflammatory agent, and plays significant roles in the prevention of various chronic diseases. Recent findings revealed that quercetin could affect metabolic traits by regulating certain transcription factors or key proteins involved in cellular signal pathways and influencing the expression of functional genes along with related regulatory pathway(s), and that microRNAs (miRNAs) circulate in body fluids and are involved in post-transcriptional gene silencing and regulation of gene expression in various biological processes including development, proliferation, metabolism and inflammation...
February 15, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29445366/the-effect-of-dna-extraction-methods-on-observed-microbial-communities-from-fibrous-and-liquid-rumen-fractions-of-dairy-cows
#13
Jueeli D Vaidya, Bartholomeus van den Bogert, Joan E Edwards, Jos Boekhorst, Sanne van Gastelen, Edoardo Saccenti, Caroline M Plugge, Hauke Smidt
DNA based methods have been widely used to study the complexity of the rumen microbiota, and it is well known that the method of DNA extraction is a critical step in enabling accurate assessment of this complexity. Rumen fluid (RF) and fibrous content (FC) fractions differ substantially in terms of their physical nature and associated microorganisms. The aim of this study was therefore to assess the effect of four DNA extraction methods (RBB, PBB, FDSS, PQIAmini) differing in cell lysis and/or DNA recovery methods on the observed microbial diversity in RF and FC fractions using samples from four rumen cannulated dairy cows fed 100% grass silage (GS100), 67% GS and 33% maize silage (GS67MS33), 33% GS and 67% MS (GS33MS67), or 100% MS (MS100)...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29443724/preoperative-fasting-guidelines-in-pediatric-anesthesia-are-we-ready-for-a-change
#14
Hanna Andersson, Achim Schmitz, Peter Frykholm
PURPOSE OF REVIEW: Study after study shows that prolonged fasting before anesthesia is common in children. Pediatric anesthesiologists around the world are concerned that the current guidelines may be part of the problem. This review focuses on what can be done about it. RECENT FINDINGS: We discuss new insights into the physiology of gastric emptying of different categories of food and drink. The evidence for negative effects of prolonged fasting occurring in spite of implementation of the current guidelines is examined...
February 12, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29443413/vascular-access-for-therapeutic-plasma-exchange
#15
REVIEW
Tina S Ipe, Marisa B Marques
Therapeutic plasma exchange is an apheresis modality in which plasma is separated from the blood cellular components ex vivo, discarded, and replaced with an isosmotic fluid (most commonly 5% albumin) to maintain appropriate oncotic pressure in the patient. Therapeutic plasma exchange is used in the treatment of many diseases and indications. The recent seventh edition of the American Society for Apheresis guidelines indicates approximately 72 diseases and 116 indications for which therapeutic plasma exchange may be effective...
February 2018: Transfusion
https://www.readbyqxmd.com/read/29442952/dipolar-interaction-and-magneto-viscoelasticity-in-nanomagnetic-fluid
#16
G A Basheed, Komal Jain, Saurabh Pathak, R P Pant
We investigate the effect of dilution on dipolar interaction with linear and non-linear rheological properties of kerosene based magnetic fluid. The steady-state behavior demonstrate a shear thinning behavior and corroborated with a power law, (η = c <mml:math display="block"> <mml:mover accent="true"> <mml:mi>γ</mml:mi> <mml:mo>˙</mml:mo> </mml:mover></mml:math>n + η∞) exponent, n ≤ 1. The shear-induced-breakup (separation) of nanoparticles and the yielding behavior has been explained by Bingham model...
April 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29441794/biophysical-properties-of-extracellular-vesicles-in-diagnostics
#17
Lucia Paolini, Andrea Zendrini, Annalisa Radeghieri
Extracellular vesicles (EVs) are cell-derived nanoparticles, involved in cell-to-cell communication, in both normal and pathological processes. Originating by the outward budding of the plasma membrane or released by exocytosis, they are natural cargoes for lipids, carbohydrates, proteins and nucleic acids. EV-based diagnostics promises unique advantages compared with conventional strategies involving whole body fluid analysis, including the reduction of biofluids complexity and more specific and sensitive detection of low abundance biomacromolecules...
February 14, 2018: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29438568/haemodynamic-assessment-and-support-in-sepsis-and-septic-shock-in-resource-limited-settings
#18
David Misango, Rajyabardhan Pattnaik, Tim Baker, Martin W Dünser, Arjen M Dondorp, Marcus J Schultz
Background: Recommendations for haemodynamic assessment and support in sepsis and septic shock in resource-limited settings are largely lacking. Methods: A task force of six international experts in critical care medicine, all of them members of the Global Intensive Care Working Group of the European Society of Intensive Care Medicine and with extensive bedside experience in resource-limited intensive care units, reviewed the literature and provided recommendations regarding haemodynamic assessment and support, keeping aspects of efficacy and effectiveness, availability and feasibility and affordability and safety in mind...
February 9, 2018: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29434324/the-utility-of-a-network-based-clustering-method-for-dimension-reduction-of-imaging-and-non-imaging-biomarkers-predictive-of-alzheimer-s-disease
#19
Hisako Yoshida, Atsushi Kawaguchi, Fumio Yamashita, Kazuhiko Tsuruya
While the identification of biomarkers for Alzheimer's disease (AD) is critical, emphasis must also be placed on defining the relationship between these and other indicators. To this end, we propose a network-based radial basis function-sparse partial least squares (RBF-sPLS) approach to analyze structural magnetic resonance imaging (sMRI) data of the brain. This intermediate phenotype for AD represents a more objective approach for exploring biomarkers in the blood and cerebrospinal fluid. The proposed method has two unique features for effective biomarker selection...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29434245/galectin-3-plays-an-important-role-in-preterm-birth-caused-by-dental-infection-of-porphyromonas-gingivalis
#20
Mutsumi Miyauchi, Min Ao, Hisako Furusho, Chanbora Chea, Atsuhiro Nagasaki, Shinnichi Sakamoto, Toshinori Ando, Toshihiro Inubushi, Katsuyuki Kozai, Takashi Takata
Dental infection is risk for preterm birth (PTB) through unclear mechanisms. We established a dental infection-induced PTB mouse model, in which Porphyromonas gingivalis (P.g.) induced PTB by 2 days. We analysed pathogenic factors contributing to PTB and their effects on trophoblasts in vitro. TNF-α, IL-8, and COX-2 were upregulated in P.g.-infected placenta. Galectin-3 (Gal-3), an immune regulator, was significantly upregulated in placenta, amniotic fluid, and serum. In vitro, P.g.-lipopolysaccharide (P.g...
February 12, 2018: Scientific Reports
keyword
keyword
106597
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"