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https://www.readbyqxmd.com/read/29777814/effect-of-vinyl-montmorillonite-on-the-physical-responsive-and-antimicrobial-properties-of-the-optimized-polyacrylic-acid-chitosan-superabsorbent-via-box-behnken-model
#1
Mohamed S Abdel Aziz, Hend E Salama
This work aims to study the effect of a vinyl-modified montmorillonite (VMT) on the physical and antimicrobial properties of chitosan-graft-polyacrylic acid superabsorbent (Ch-g-PA). Ch-g-PA was first optimized using Box-Behnken Design to obtain the maximum equilibrium swelling, and the model was efficient to express the experimental swelling data (R2  = 0.999). VMT was further added to the optimized Ch-g-PA in different contents 0, 4, 7 and 10 wt%. FTIR confirmed the successful synthesis of the copolymers and their nanocomposites...
May 16, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29776653/accuracy-of-phase-contrast-velocity-mapping-proximal-and-distal-to-stent-artifact-during-cardiac-magnetic-resonance-imaging
#2
Catherine M Avitabile, Matthew A Harris, Ravi S Doddasomayajula, Steven G Chopski, Matthew J Gillespie, Yoav Dori, Andrew C Glatz, Mark A Fogel, Kevin K Whitehead
Little data are available on the accuracy of phase-contrast magnetic resonance imaging (PC-MRI) velocity mapping in the vicinity of intravascular metal stents other than nitinol stents. Therefore, we sought to determine this accuracy using in vitro experiments. An in vitro flow phantom was used with 3 stent types: (1) 316L stainless steel, (2) nitinol self-expanding, and (3) platinum-iridium. Steady and pulsatile flow was delivered with a magnetic resonance imaging-compatible pump (CardioFlow 5000, Shelley Medical, London, Ontario, Canada)...
April 20, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29776548/a-label-free-electrochemical-biosensor-for-direct-detection-of-rack-1-by-using-disposable-low-cost-and-reproducible-ito-based-electrode
#3
Hakan Törer, Elif Burcu Aydın, Mustafa Kemal Sezgintürk
In this study we designed an ultrasensitive electrochemical immunosensor for RACK 1 detection using 11-cyanoundecyltrimethoxysilane (11-CUTMS) as a immobilization matrix to immobilize biorecognition element. The used silane agent (11-CUTMS) provides a favorable platform for efficient loading of anti-RACK 1 antibody. The effective loading of the biorecognition element on the 11-CUTMS matrix was monitored by scanning electron microscopy (SEM), atomic force microscopy (AFM) images and fourier transform infrared spectroscopy (FTIR) spectra...
September 18, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29776008/factors-associated-with-self-reported-history-of-depression-diagnosis-among-cancer-survivors-aged-18-years-and-over-in-the-united-states
#4
Gemechu B Gerbi, Stranjae' Ivory, Elaine Archie Booker, Mechelle D Claridy, Stephanie Miles-Richardson
OBJECTIVE: According to the American Cancer Society, 25 percent of cancer survivors in the United States develop depression. The objective of this study is to assess factors associated with self-reported history of depression diagnosis among cancer survivors aged ≥18 years in the United States. METHODS: Data were analyzed from the 2014 Behavioral Risk Factor Surveillance System (BRFSS) (N=6,079). The BRFSS collects data about US residents regarding their health-related risk behaviors and events, chronic health conditions, and use of preventive services...
May 18, 2018: Psycho-oncology
https://www.readbyqxmd.com/read/29771783/hiv-1-drug-resistance-among-ugandan-adults-attending-an-urban-out-patient-clinic
#5
Amrei von Braun, Christine Sekaggya-Wiltshire, Nadine Bachmann, Deogratius Ssemwanga, Alexandra U Scherrer, Maria Nanyonjo, Anne Kapaata, Pontiano Kaleebu, Huldrych F Günthard, Barbara Castelnuovo, Jan Fehr, Andrew Kambugu
BACKGROUND: Little is known about prevalence of drug resistance among HIV-infected Ugandans, a setting with over 15 years of public-sector access to antiretroviral therapy (ART) and where virological monitoring was only recently introduced. SETTING: This study was conducted in the adults' out-patient clinic of the Infectious Diseases Institute, Kampala, Uganda. METHODS: HIV genotyping was performed in ART naïve patients and in treatment experienced patients on ART for ≥ six months with virological failure (≥1000 copies/mL)...
April 27, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29769832/validity-and-reliability-of-the-powertap-p1-pedals-power-meter
#6
Jesús G Pallarés, José Ramón Lillo-Bevia
To validate the new PowerTap P1® pedals power meter (PP1), thirty-three cyclists performed 12 randomized and counterbalanced graded exercise tests (100-500 W), at 70, 85 and 100 rev·min-1 cadences, in seated and standing positions. A scientific SRM system and a pair of PP1 pedals continuously recorded cadence and power output data. Significantly lower power output values were detected for the PP1 compared to the SRM for all workloads, cadences, and pedalling conditions (2-10 W, p < 0.05), except for the workloads ranged between 150 W to 350 W at 70 rev·min-1 in seated position (p > 0...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29768026/return-to-play-and-performance-outcomes-of-professional-athletes-in-north-america-after-hip-arthroscopy-from-1999-to-2016
#7
Michael S Schallmo, Thomas H Fitzpatrick, Hunter B Yancey, Alejandro Marquez-Lara, T David Luo, Allston J Stubbs
BACKGROUND: The effect of hip arthroscopy on athletic performance compared with preinjury levels for professional athletes in different sports remains unknown. In addition, while return rates have been reported for professional baseball, football, and hockey players, return rates have not been reported for professional basketball players. HYPOTHESIS: Professional athletes in 4 major North American sports would be able to return to their sport and preoperative level of performance at a high rate after arthroscopic hip surgery...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29768019/does-anterior-cruciate-ligament-reconstruction-affect-the-outcome-of-osteochondral-allograft-transplantation-a-matched-cohort-study-with-a-mean-follow-up-of-6-years
#8
Luís E P Tírico, Julie C McCauley, Pamela A Pulido, William D Bugbee
BACKGROUND: Few studies have evaluated the influence of anterior cruciate ligament (ACL) reconstruction on the outcome of cartilage repair. Hypothesis/Purpose: The purpose was to investigate the association between ACL reconstruction and functional outcomes after osteochondral allograft (OCA) transplantation. The hypothesis was that patients treated with OCA transplantation who had a history of ACL reconstruction would have inferior clinical outcomes and lower osteochondral graft survivorship when compared with a matched group of patients undergoing OCA transplantation without a history of ACL reconstruction...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29767481/supporting-care-home-staff-to-manage-residents-care-safely-and-avoid-admissions
#9
Susan Wills, Dena Ross
The community matron care homes team (CHT) was set up in Sandwell, West Midlands in 2011 to support care home staff to manage residents' care safely and reduce unplanned and/or avoidable use of acute health services. The service was reviewed in 2015 and attention focused on care homes with the highest levels of hospital use and emergency 999 services. Working with these care home staff and health professionals, a training and education opportunity to aid staff to manage residents in crisis was sourced, organised and implemented...
May 16, 2018: Nursing Older People
https://www.readbyqxmd.com/read/29766315/validation-and-determination-of-nine-pfcs-in-surface-water-and-sediment-samples-using-uplc-qtof-ms
#10
B O Fagbayigbo, B O Opeolu, O S Fatoki, O S Olatunji
In this study, an analytical method for the routine determination of nine perfluorinated compounds (PFCs), using ultra performance liquid chromatography coupled to a quadrupole time-of-flight mass spectrometer (UPLC-QTOF-MS), was developed, validated, and used for their assay in surface water and sediments. The method yielded good linearity with a correlation coefficient (R2 ) ranging between 0.991 and 0.999 for all the compounds investigated. Limits of detection (LOD) ranged between 0.02 and 0.08 ng/l, while the limit of quantification (LOQ) ranged from 0...
May 15, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29765944/uveal-melanoma-5-year-update-on-incidence-treatment-and-survival-seer-1973-2013
#11
Mary E Aronow, Allan K Topham, Arun D Singh
Purpose: To analyze trends in incidence, treatment, and survival of uveal melanoma in the United States from 1973 to 2013 using the Surveillance, Epidemiology, and End Results database. Materials and Methods: Patients were identified using International Classification of Disease for Oncology codes: C69.3 (choroid), C69.4 (ciliary body and iris), and C69.2 (retina). Trends in age-adjusted incidence, treatment (surgery or radiation), and 5-year relative survival were calculated...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29762450/three-dimensional-analysis-of-mandibular-angle-classification-and-aesthetic-evaluation-of-the-lower-face-in-chinese-female-adults
#12
Xiaoyan Mao, Xi Fu, Feng Niu, Ying Chen, Qi Jin, Jia Qiao, Lai Gui
BACKGROUND: Reduction gonioplasty is very popular in East Asia. However, there has been little quantitative criteria for mandibular angle classification or aesthetics. The aim of this study was to investigate the quantitative differences of mandibular angle types and determine the morphologic features of mandibular angle in attractive women. METHODS: We created a database of skull computed tomography and standardized frontal and lateral photographs of 96 Chinese female adults...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29759648/synthesis-of-magnetic-mesoporous-fe-3-o-4-pei-mof-5-for-the-effective-enrichment-of-malachite-green-and-crystal-violet-in-fish-samples
#13
Zhihui Zhou, Yanqing Fu, Qian Qin, Xin Lu, Xianzhe Shi, Chunxia Zhao, Guowang Xu
A novel, magnetic and mesoporous Fe3 O4 @PEI-MOF-5 material was synthesized for the effective enrichment of malachite green (MG) and crystal violet (CV) in fish samples. The Fe3 O4 @PEI-MOF-5 material was prepared by a facile two-step solvothermal approach in which Fe3 O4 @PEI and MOF-5 were connected through chemical bonds. Characterization of the newly synthesized Fe3 O4 @PEI-MOF-5 material was performed by Fourier transform infrared spectroscopy, X-ray diffractometry, vibrating sample magnetometry, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy...
May 9, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29756967/dual-energy-x-ray-absorptiometry-dxa-reliability-and-intraobserver-reproducibility-for-segmental-body-composition-measuring
#14
Osvaldo Costa Moreira, Claudia Eliza Patrocinio de Oliveira, José Antonio De Paz
BACKGROUND: the measurement precision of body composition can interfere on the diagnosis and prescription of diseases' treatment. Furthermore, with regard to dual energy X-rays absorptiometry (DXA), there may be important differences between the measures of regions of interest (ROI) automatically performed by DXA or manually by an evaluator, which can cause measurement error and influence the evaluation or diagnosis. AIM: thus, this study aimed to evaluate the measurement reliability of body composition by DXA and intraobserver reproducibility for the ROI measurement...
January 17, 2018: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29755150/biodegradation-of-ammonium-ions-and-formate-during-ammonium-formate-metabolism-by-yarrowia-lipolytica-and-pichia-guilliermondii-in-a-batch-reactor
#15
M N Nsoe, G P Kofa, K S Ndi, B Mohammadou, M Heran, G J Kayem
The use of microorganisms for the biodegradation of pollutants is increasingly being studied. But at high concentrations, these pollutants become rather inhibitors for the metabolism of microorganisms. In this study, the biodegradation of ammonium formate at various concentrations (1.59-7.94 mM) by Yarrowia Lipolytica and Pichia guilliermondii isolated from the rubber effluent is studied by following the variation of ammonium ions and formate. A fitting of eight models of substrate inhibition was performed and the parameters were determined by nonlinear regression using MATLAB 8...
2018: Water, Air, and Soil Pollution
https://www.readbyqxmd.com/read/29749130/effects-of-coronary-artery-revascularization-with-a-polymer-free-biolimus-a9-coated-biofreedom-stent-versus-bypass-surgery-before-noncardiac-surgery
#16
Kyu Kim, Choongki Kim, Byeong Keuk Kim, Ji Yong Jang, Ae Young Her, Seunghwan Kim, Sung Jin Hong, Chul Min Ahn, Jung Sun Kim, Young Guk Ko, Donghoon Choi, Myeong Ki Hong, Yangsoo Jang
PURPOSE: The present study aimed to evaluate the efficacy and safety of polymer-free drug-coated BioFreedom stent implantation in comparison to coronary artery bypass graft (CABG) before major noncardiac surgery. MATERIALS AND METHODS: In a multicenter registry, 55 patients required revascularization before major noncardiac surgery that should not be delayed >6 months. Of them, 27 underwent BioFreedom stent implantation and 28 underwent CABG. Primary outcomes included rate of noncardiac surgery, time from revascularization to noncardiac surgery, and occurrence of composite outcomes (all-cause death, myocardial infarction, stent thrombosis, stroke, repeat revascularization, or major bleeding)...
June 2018: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29749006/predictors-of-recurrence-in-remitted-late-life-depression
#17
Yi Deng, Douglas R McQuoid, Guy G Potter, David C Steffens, Kimberly Albert, Meghan Riddle, John L Beyer, Warren D Taylor
BACKGROUND: Late-life depression (LLD) is associated with a fragile antidepressant response and high recurrence risk. This study examined what measures predict recurrence in remitted LLD. METHODS: Individuals of age 60 years or older with a Diagnostic and Statistical Manual - IV (DSM-IV) diagnosis of major depressive disorder were enrolled in the neurocognitive outcomes of depression in the elderly study. Participants received manualized antidepressant treatment and were followed longitudinally for an average of 5 years...
May 10, 2018: Depression and Anxiety
https://www.readbyqxmd.com/read/29748964/is-augmented-liss-plating-biomechanically-advantageous-over-conventional-liss-plating-in-unstable-osteoporotic-distal-femoral-fractures
#18
Dimitar Todorov, Ivan Zderic, R Geoff Richards, Mark Lenz, Matthias Knobe, Dian Enchev, Asen Baltov, Boyko Gueorguiev, Karl Stoffel
Treatment of complex osteoporotic distal femur fractures with the Less Invasive Stabilization System (LISS) has been associated with high complication rates. The aim of this study was to investigate the biomechanical competence of two different techniques of augmented versus conventional LISS plating. Unstable distal femoral fracture AO/OTA 33-A3 was created via osteotomies in artificial femora simulating osteoporotic bone. Three study groups, consisting of 10 specimens each, were created for instrumentation with either LISS plate, LISS plate with additional polylactide intramedullary graft, or LISS plate plus medial locking plate (double plating)...
May 10, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29748724/decreased-re-operation-rate-for-recurrence-after-defect-closure-in-laparoscopic-ventral-hernia-repair-with-a-permanent-tack-fixated-mesh-a-nationwide-cohort-study
#19
J J Baker, S Öberg, K Andresen, J Rosenberg
PURPOSE: To investigate whether defect closure in laparoscopic ventral hernia repair reduces the re-operation rate for recurrence compared with no defect closure. METHODS: Data were extracted from the Danish Ventral Hernia Database. Adults with an elective laparoscopic ventral hernia repair with tacks used as mesh fixation were included, if their first repair was between the 1st of January 2007 and the 1st of January 2017. Patients with defect closure were compared with no defect closure...
May 10, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/29747085/study-on-feasibility-of-determination-of-glucosamine-content-of-fermentation-process-using-a-micro-nir-spectrometer
#20
Zhongyu Sun, Can Li, Lian Li, Lei Nie, Qin Dong, Danyang Li, Lingling Gao, Hengchang Zang
N-acetyl-d-glucosamine (GlcNAc) is a microbial fermentation product, and NIR spectroscopy is an effective process analytical technology (PAT) tool in detecting the key quality attribute: the GlcNAc content. Meanwhile, the design of NIR spectrometers is under the trend of miniaturization, portability and low-cost nowadays. The aim of this study was to explore a portable micro NIR spectrometer with the fermentation process. First, FT-NIR spectrometer and Micro-NIR 1700 spectrometer were compared with simulated fermentation process solutions...
May 2, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
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