keyword
MENU ▼
Read by QxMD icon Read
search

systematic analysis

keyword
https://www.readbyqxmd.com/read/29778057/dynamic-study-of-cr-vi-removal-performance-and-mechanism-from-water-using-multilayer-material-coated-nanoscale-zerovalent-iron
#1
Bin Wu, Dinghua Peng, Siyu Hou, Bicong Tang, Can Wang, Heng Xu
In this study, the dynamic Cr(VI) removal process from water by the synthesized multilayer material coated nanoscale zerovalent iron (SBC-nZVI) was systematically discussed at different treatment conditions. The results showed that initial pH, contact time, Cr(VI) concentration and the dosage of SBC-nZVI were important parameters that influenced the Cr(VI) removal efficiency. The major Cr(VI) removal occurred within 60 min and gradually tend to equilibrium with consistent treatment. The removal efficiency was highly depended on pH values and the adsorption kinetics agreed well with the pseduo-second-order model (PSO)...
May 16, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29778055/new-insights-into-the-effects-of-support-matrix-on-the-removal-of-organic-micro-pollutants-and-the-microbial-community-in-constructed-wetlands
#2
Liang Zhang, Tao Lyu, Carlos Andrés Ramírez Vargas, Carlos A Arias, Pedro N Carvalho, Hans Brix
Constructed wetlands (CWs) are an eco-friendly and cost-effective technology to remove organic micro-pollutants (OMPs) from wastewater. The support matrix is an important component in CWs as it has a primary role in the growth and development of plants and microbes. However, the roles of the support matrix in CWs in removing OMPs have not been systematically studied. Therefore, in this study, six common materials (sand, zeolite, blast iron slag, petcoke, polonite and crushed autoclaved aerated concrete (CAAC)) as support matrixes were firstly investigated by batch tests to explore their adsorption capacities to selected OMPs (ibuprofen, iohexol, tebuconazole and imazalil)...
May 16, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29778041/the-efficacy-of-vitamin-d-in-multiple-sclerosis-a-meta-analysis
#3
REVIEW
Chao Zheng, Liang He, Lingling Liu, Jie Zhu, Tao Jin
BACKGROUND: Multiple sclerosis (MS) is a chronic inflammatory demyelination disorder in the central nervous system (CNS) leading to a high level of neurological disability. The pathogenesis of MS remains largely unknown, which explains the lack of significant efficacy of therapy in MS. Vitamin D deficiency is widely considered to be an environmental risk factor for MS. Many studies investigating the therapeutic effects of vitamin D on MS have been applied. The objective of this systematic review and meta-analysis was to evaluate the effectiveness of vitamin D in MS patients...
May 12, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29777941/characterization-of-the-binding-of-a-novel-antitumor-drug-ibrutinib-with-human-serum-albumin-insights-from-spectroscopic-calorimetric-and-docking-studies
#4
Bin Tang, Peixiao Tang, Jiawei He, Hongqin Yang, Hui Li
Ibrutinib (IBR) is a novel Bruton's tyrosine kinase inhibitor and shows good efficacy for several B-cell malignancies. In the current study, the molecular mechanism of the interaction between IBR and the transport protein human serum albumin (HSA) was ascertained by spectroscopic, calorimetric, and docking studies. Detailed investigations on affinity parameter, binding model, conformational change, and site selectivity were implemented by receptor-based and ligand-based analysis. An unusual fluorescence co-quenching (mutual quenching) was observed in the binding of IBR to HSA, followed by a static mechanism...
May 16, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29777909/lncrnas-as-potential-molecular-biomarkers-for-the-clinicopathology-and-prognosis-of-glioma-a-systematic-review-and-meta-analysis
#5
REVIEW
Qian Zhou, Jing Liu, Jing Quan, Wenlan Liu, Hui Tan, Weiping Li
BACKGROUND: An increasing number of studies have shown that long noncoding RNAs (lncRNAs) play important roles in the development of glioma. However, a systematic review and meta-analysis to evaluate the clinical value of lncRNA expression in glioma patients is lacking. We performed this study to assess the relationship between the expression of various lncRNAs and the clinicopathological features, diagnosis and prognosis of glioma. MATERIALS AND METHODS: Eligible studies were identified through a comprehensive literature search...
May 16, 2018: Gene
https://www.readbyqxmd.com/read/29777881/single-incision-laparoscopic-versus-conventional-laparoscopic-right-colectomy-a-systematic-review-and-meta-analysis
#6
REVIEW
Boye Dong, Zuyang Luo, Jiabao Lu, Yang Yang, Yixian Song, Jie Cao, Wanglin Li
BACKGROUND: Single-incision laparoscopic surgery has gained widespread attention because of its potential benefits such as less skin incision and faster recovery. Up to now, only one meta-analysis (performed in 2013; including 9 studies, a total of 585 cases) compared single-incision laparoscopic right colectomy (SILRC) with conventional laparoscopic right colectomy (CLRC). An updated meta-analysis was undertaken to explore more convinced comparative findings between SILRC and CLRC. MATERIALS AND METHODS: The search for studies that compared SILRC with CLRC was done on PubMed, Embase, Web of Science, and the Cochrane Library...
May 16, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29777868/comparative-efficacy-and-safety-of-different-antiviral-agents-for-cytomegalovirus-prophylaxis-in-allogeneic-hematopoietic-cell-transplantation-a-systematic-review-and-meta-analysis
#7
Nico Gagelmann, Per Ljungman, Jan Styczynski, Nicolaus Kröger
Over the past 25 years, several randomized controlled trials have investigated the efficacy of different antiviral agents for cytomegalovirus (CMV) prophylaxis in allogeneic hematopoietic-cell transplantation. We performed a systematic literature review, conventional meta-analysis and network meta-analysis using a random-effects model and risk ratios (RR) with corresponding 95% confidence intervals (CI) as effect estimates. Fifteen randomized controlled trials were identified, including seven different antiviral agents: acyclovir, ganciclovir, maribavir, brincidofovir, letermovir, valacyclovir, and vaccine...
May 16, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29777857/study-of-the-influence-of-substrate-and-spectrophotometer-characteristics-on-the-in-vitro-measurement-of-sunscreens-efficiency
#8
C Couteau, A Philippe, M-A Vibet, E Paparis, L Coiffard
All the methods used for the in vitro measurement of the SPF, the universal indicator of sunscreens efficiency, rely on a spectrophotometric analysis. What can vary about the experimental protocol used is mainly the substrate and the type of spectrophotometer chosen. We decided to work with polymethylmetacrylate plates that we analyzed using two spectrophotometers equipped with integrating spheres, the UV1000S and the UV2000 apparatus. Two marketed products were such tested, after spreading 2 mg/cm2 on the plates, using one apparatus after another...
May 16, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29777821/regional-cardiac-function-analysis-from-tagged-mri-images-comparison-of-techniques-harmonic-phase-harp-versus-sinusoidal-modeling-sinmod-analysis
#9
El-Sayed H Ibrahim, Jadranka Stojanovska, Azza Hassanein, Claire Duvernoy, Pierre Croisille, Rodica Pop-Busui, Scott D Swanson
Cardiac MRI tagging is a valuable technique for evaluating regional heart function. Currently, there are a number of different techniques for analyzing the tagged images. Specifically, k-space-based analysis techniques showed to be much faster than image-based techniques, where harmonic-phase (HARP) and sine-wave modeling (SinMod) stand as two famous techniques of the former group, which are frequently used in clinical studies. In this study, we compared HARP and SinMod and studied inter-observer variability between the two techniques for evaluating myocardial strain and apical-to-base torsion in numerical phantom, nine healthy controls, and thirty diabetic patients...
May 16, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29777809/systematic-fractionation-and-immunoenhancement-of-water-soluble-polysaccharides-isolated-from-fruit-of-morus-alba-l
#10
DongXue Wang, Hui Li, Bo Li, Rui Ma, Ning Zhang, Xiaoyu Zhang, Lili Jiao, Wei Wu
In this study, we obtained and fractionated systematically the polysaccharides of Fructus mori fruit by the sequential use of water extraction, ethanol precipitation and ion-exchange chromatography. The sugar contents of FPA-1, FPA-2, FPA-4 and FPA-5 were estimated to be 75.70%, 67.15%, 87.78% and 91.63%, respectively. Monosaccharide composition analysis revealed that all the polysaccharides primarily contained Man, GlcA, GalA, Glc, Gal, Xyl, Ara and Fuc. Moreover, a small amount of Rha was detected in FPA-1, FPA-4 and FPA-5...
May 16, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29777806/the-formation-of-zein-chitosan-complex-coacervated-particles-relationship-to-encapsulation-and-controlled-release-properties
#11
Meng-Fan Li, Lang Chen, Ming-Ze Xu, Jing-Lin Zhang, Qin Wang, Qing-Zhu Zeng, Xing-Chuan Wei, Yang Yuan
The complex coacervation between zein and chitosan (CS) as well as the relationship with the controlled release properties of their complex nanoparticles were studied. The factors influencing the nanoparticle formation between zein and CS, including solid to liquid ratio, zein to CS ratio and pH, were systematically investigated. The structural analysis by FT-IR revealed that the electrostatic interaction was the driving force to form zein-CS nanoparticles (ZCNPs). The mean particle sizes of ZCNPs were increased by enhanced integration degree between zein and CS (from 90...
May 16, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29777671/surgical-management-and-outcomes-of-ebstein-anomaly-in-neonates-and-infants-a-society-of-thoracic-surgeons-congenital-heart-surgery-database-analysis
#12
Kimberly A Holst, Joseph A Dearani, Sameh M Said, Ryan R Davies, Christian Pizarro, Christopher Knott-Craig, T K Susheel Kumar, Vaughn Starnes, S Ram Kumar, Sara K Pasquali, Dylan P Thibault, James M Meza, Kevin D Hill, Karen Chiswell, Jeffrey P Jacobs, Marshall L Jacobs
BACKGROUND: Ebstein anomaly (EA) encompasses a broad spectrum of morphology and clinical presentation. Those who are symptomatic early in infancy are generally at highest risk, but there are limited data regarding multi-centric practice patterns and outcomes. We analyzed multi-institutional data concerning operations and outcomes in neonates and infants with EA. METHODS: Index operations reported in the STS Congenital Heart Surgery Database (2010-2016) were potentially eligible for inclusion...
May 16, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29777531/the-directional-and-non-directional-associations-of-periodontitis-with-chronic-kidney-disease-a-systematic-review-and-meta-analysis-of-observational-studies
#13
REVIEW
D Zhao, A T Khawaja, L Jin, K-Y Li, M Tonetti, G Pelekos
This systematic review aimed to assess the current evidence on the directional and non-directional associations of periodontitis with chronic kidney disease (CKD). Electronic search for observational studies on the association of periodontitis with CKD was performed in MEDLINE, EMBASE, PubMed, Open GREY and Cochrane library up to June 5, 2017. Two reviewers conducted study selection, data collection and assessment of methodological quality using the original and modified Newcastle-Ottawa Scale. Cohort, case-control and cross-sectional studies were included, which clearly defined periodontitis and CKD or reported acceptable clinical parameters of these 2 diseases in adults...
May 18, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29777471/the-association-between-emotional-and-behavioral-problems-in-children-with-autism-spectrum-disorder-and-psychological-distress-in-their-parents-a-systematic-review-and-meta-analysis
#14
Isabel Yorke, Pippa White, Amelia Weston, Monica Rafla, Tony Charman, Emily Simonoff
This review (Prospero Registration Number: CRD42017057915) aimed to systematically identify and summarize existing research on the relationship between additional emotional and behavioral problems (EBP) in children with autism, and parenting stress (PS) and mental health problems (MHP) in their parents. Sixty-seven studies met criteria for inclusion in the review, 61 of which were included in the meta-analysis. Pooled correlation coefficients were in the low to moderate range ([Formula: see text]). Some evidence for moderation by measurement characteristics was found...
May 18, 2018: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29777452/revision-of-surgical-margin-under-frozen-section-to-achieve-r0-status-on-survival-in-patients-with-pancreatic-cancer
#15
Zi Yin, Yu Zhou, Baohua Hou, Tingting Ma, Min Yu, Chuanzhao Zhang, Xin Lu, Zhixiang Jian
OBJECTIVE: The aim is to investigate whether additional resection based on intraoperative frozen section (FS) to a secondary R0(s) status are associated with different long-term survivals in pancreatic cancer patients, comparing to those with R1 or primary R0(p) status. METHODS: A systematic literature search (PubMed, Embase, Science Citation Index, Springer-Link, and Cochrane Central Register of Controlled Trials) was performed to identify all studies published up to June 2017...
May 18, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29777352/forward-viewing-endoscope-for-ercp-in-patients-with-billroth-ii-gastrectomy-a-systematic-review-and-meta-analysis
#16
Tae Young Park, Chang Seok Bang, Sang Hyeon Choi, Young Joo Yang, Suk Pyo Shin, Ki Tae Suk, Gwang Ho Baik, Dong Joon Kim, Jai Hoon Yoon
BACKGROUND: The forward-viewing endoscope has been increasingly used to perform endoscopic retrograde cholangiopancreatography (ERCP) in patients who underwent Billroth II gastrectomy. This study intended to assess efficacy and safety of the forward-viewing endoscope for ERCP in Billroth II gastrectomy patients compared with conventional side-viewing endoscope using a systematic review and meta-analysis. METHODS: A systematic review was conducted for studies that evaluated the outcomes of ERCP for patients with Billroth II gastrectomy...
May 17, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29777351/development-of-a-patient-reported-outcome-measure-of-recovery-after-abdominal-surgery-a-hypothesized-conceptual-framework
#17
Roshni Alam, Sabrina M Figueiredo, Saba Balvardi, Bénédicte Nauche, Tara Landry, Lawrence Lee, Nancy E Mayo, Liane S Feldman, Julio F Fiore
BACKGROUND: We initiated a research program to develop a novel patient-reported outcome measure (PROM) to assess postoperative recovery from the perspective of abdominal surgery patients. In light of FDA recommendations, the first stage of our program aimed to, based on previous literature and expert input, develop a hypothesized conceptual framework portraying the health domains that are potentially relevant to the process of recovery after abdominal surgery. METHODS: This study was conducted in three phases: (1) systematic review to identify PROMs with measurement properties appraised in the context of recovery after abdominal surgery, (2) content analysis to categorize the health domains covered by the PROMs according to the ICF, and (3) two-round Delphi study to gain expert input regarding which of these health domains are relevant to the process of recovery...
May 17, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29777347/intrauterine-hpv-transmission-a-systematic-review-of-the-literature
#18
REVIEW
Andreas Zouridis, Theodoros Kalampokas, Konstantinos Panoulis, Nicolaos Salakos, Efthimios Deligeoroglou
PURPOSE: To evaluate the percentage of intrauterine vertical human papillomavirus (HPV) transmission among HPV-positive mothers and the relative risk of intrauterine vertical HPV transmission between cesarean and vaginal delivery among HPV-positive women. METHODS: This systematic review was made according to the PRISMA statement. We searched PubMed and Scopus and the final articles were selected by two reviewers. Data from the selected articles were plotted, and the pooled percentage of antenatal vertical HPV transmission among HPV-positive mothers as well as the pooled relative risk of antenatal vertical HPV transmission between cesarean and vaginal delivery among HPV-positive women were calculated...
May 18, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29777322/sensitivity-analysis-of-ultrasonic-guided-waves-propagating-in-trilayered-bone-models-a-numerical-study
#19
Tho N H T Tran, Lawrence H Le, Mauricio D Sacchi, Vu-Hieu Nguyen
The fundamental ultrasonic guided modes are consistently observed in long bones ex vivo and in vivo. However, the responses of ultrasonic guided waves to the changes of cortical thickness, cortical elastic parameters, and thickness of the overlying soft tissues are not comprehensively understood. This paper systematically presents a sensitivity analysis of leaky Lamb modes to the geometry and material characteristics of layered bone model by means of semi-analytical finite element modeling. The stratified bone model is consisted of a transversely isotropic cortex with an overlying soft tissue and underlying marrow...
May 18, 2018: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/29777290/two-dimensional-grid-optimization-for-sedimentation-velocity-analysis-in-the-analytical-ultracentrifuge
#20
Haram Kim, Emre Brookes, Weiming Cao, Borries Demeler
Sedimentation velocity experiments performed in the analytical ultracentrifuge are modeled using finite-element solutions of the Lamm equation. During modeling, three fundamental parameters are optimized: the sedimentation coefficients, the diffusion coefficients, and the partial concentrations of all solutes present in a mixture. A general modeling approach consists of fitting the partial concentrations of solutes defined in a two-dimensional grid of sedimentation and diffusion coefficient combinations that cover the range of possible solutes for a given mixture...
May 17, 2018: European Biophysics Journal: EBJ
keyword
keyword
54449
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"