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https://www.readbyqxmd.com/read/28943669/effect-of-low-concentration-rhamnolipid-biosurfactant-on-pseudomonas-aeruginosa-transport-in-natural-porous-media
#1
Guansheng Liu, Hua Zhong, Yongbing Jiang, Mark L Brusseau, Jiesheng Huang, Liangsheng Shi, Zhifeng Liu, Yang Liu, Guangming Zeng
The effect of low-concentrations of monorhamnolipid biosurfactant on transport of Pseudomonas aeruginosa ATCC 9027 in natural porous media (silica sand and a sandy soil) was studied with miscible-displacement experiments using artificial groundwater as the background solution. Transport of two types of cells was investigated, glucose- and hexadecane-grown cells with lower and higher cell surface hydrophobicity (CSH), respectively. The effect of hexadecane presence as a residual non-aqueous phase liquid (NAPLs) on transport was also examined...
January 2017: Water Resources Research
https://www.readbyqxmd.com/read/28932362/clinical-radiological-pathological-correlation-of-cavernous-sinus-hemangioma-incremental-value-of-diffusion-weighted-imaging
#2
Abhishek Mahajan, Vedula Rajni Kanth Rao, Gudipati Anantaram, Ashwin M Polnaya, Sandeep Desai, Paresh Desai, Rammohan Vadapalli, Manas Panigrahi
AIM: To elucidate the clinical, magnetic resonance imaging (MRI), pathological features of these lesions and asses the incremental value of diffusion-weighted imaging (DWI) in diagnosing them. METHODS: Fifteen consecutive patients (11 females and 4 males; mean age 40.93 years; age range 13-63 years) with cavernous sinus hemangiomas (CSH) who underwent examination between November 2008 and May 2016 were included for the analysis. MRI, clinical and surgical findings of each patient was retrospectively reviewed...
August 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28915937/ultra-high-performance-supercritical-fluid-chromatography-mass-spectrometry-procedure-for-analysis-of-monosaccharides-from-plant-gum-binders
#3
Volodymyr Pauk, Tomáš Pluháček, Vladimír Havlíček, Karel Lemr
The ultra-high performance supercritical fluid chromatography-mass spectrometry (UHPSFC/MS) procedure for analysis of native monosaccharides was developed. Chromatographic conditions were investigated to separate a mixture of four hexoses, three pentoses, two deoxyhexoses and two uronic acids. Increasing water content in methanol modifier to 5% and formic acid to 4% improved peak shapes of neutral monosaccharides and allowed complete elution of highly polar uronic acids in a single run. An Acquity HSS C18SB column outperformed other three tested stationary phases (BEH (silica), BEH 2-ethylpyridine, CSH Fluoro-Phenyl) in terms of separation of isomers and analysis time (4...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28902479/support-for-healthy-eating-at-schools-according-to-the-comprehensive-school-health-framework-evaluation-during-the-early-years-of-the-ontario-school-food-and-beverage-policy-implementation
#4
Taryn Orava, Steve Manske, Rhona Hanning
INTRODUCTION: Provincial, national and international public health agencies recognize the importance of school nutrition policies that help create healthful environments aligned with healthy eating recommendations for youth. School-wide support for healthy living within the pillars of the comprehensive school health (CSH) framework (social and physical environments; teaching and learning; healthy school policy; and partnerships and services) has been positively associated with fostering improvements to student health behaviours...
September 2017: Health Promotion and Chronic Disease Prevention in Canada
https://www.readbyqxmd.com/read/28893370/inhibitory-efficacy-of-geraniol-on-biofilm-formation-and-development-of-adaptive-resistance-in-staphylococcus-epidermidis-rp62a
#5
Arunachalam Kannappan, Murugesan Sivaranjani, Ramanathan Srinivasan, Janarthanam Rathna, Shunmugiah Karutha Pandian, Arumugam Veera Ravi
PURPOSE: The current study has been designed to delineate the efficacy of geraniol (GE) on biofilm formation in Staphylococcus epidermidis as well as the effect of subinhibitory concentrations of GE on the development of adaptive resistance. METHODOLOGY: Biofilm biomass quantification assay was performed to evaluate the antibiofilm activity of GE against S. epidermidis. Microscopic observation of biofilms and extracellular polymeric substance (EPS), slime and cell surface hydrophobicity (CSH) production were also studied to support the antibiofilm potential of GE...
September 12, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28882603/gamma-knife-surgery-for-a-hemangioma-of-the-cavernous-sinus-in-an-adult-case-report-and-short-review-of-the-literature
#6
L Schwyzer, C Tuleasca, F-X Borruat, I Radovanovic, M Levivier
Cavernous sinus hemangiomas (CSH) are rare benign extra-axial vascular lesions. Both radiological and clinical aspects are important, for deciding a therapeutic modality, including medical treatment, radiation therapy or microsurgery. In the particular case of CSH, a radical removal of the tumor often cannot be achieved and is associated with a considerable risk for intraoperative uncontrollable bleeding. An alternative treatment modality is radiosurgery. Here we report the case of a 45-year-old patient, who presented with diplopia due to left abducens nerve palsy...
September 4, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28876478/achieving-consensus-on-principles-of-good-practice-for-school-health-in-independent-schools-a-delphi-study
#7
Miguel G Marshall, John P Allegrante
BACKGROUND: Although the 8 components of the coordinated school health (CSH) framework have been implemented to various degrees in the nation's public schools, principles of good practice (PGPs) to guide health promotion efforts in independent schools do not exist. The purpose of this study was to generate PGPs and rate their feasibility of implementation. METHODS: A modified Delphi process was used to generate PGPs for school health in independent schools and develop consensus regarding their feasibility of implementation...
October 2017: Journal of School Health
https://www.readbyqxmd.com/read/28875118/multimodality-management-of-cavernous-sinus-hemangiomas-an-institutional-experience
#8
Dwarakanath Srinivas, Pragyan Sarma, Dhaval Shukla, Dhananjay Bhat, Paritosh Pandey, Sampath Somanna, Ananthakrishna Chandramouli
Objective  Cavernous sinus hemangiomas (CSHs) are benign lesions accounting for less than 2% of the cavernous sinus tumors. They provide a formidable surgical challenge because of their vascularity and their being surrounded by critical neurovascular structures. In this study, one of the largest in available literature, we analyze our experience in the management of these unusual tumors and review the available literature. Materials  This is a retrospective analysis of patients who were managed surgically (both microsurgical and Gamma knife radiosurgery [GKRS]) for CSH at our Institution from 2007 to 2015...
October 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28870324/photoelectrochemical-detection-of-copper-ions-by-modulating-the-growth-of-cds-quantum-dots
#9
Ruta Grinyte, Javier Barroso, Beatriz Díez-Buitrago, Laura Saa, Marco Möller, Valeri Pavlov
We discovered that copper ions (Cu(2+)) catalyze the oxidation of cysteine (CSH) by oxygen (O2) to modulate the growth of CSH-capped cadmium sulfide (CdS) nanoparticles (NPs). This new chemical process was applied to sensitive fluorogenic and photoelectrochemical (PEC) detection of Cu(2+) ions in real samples of mineral and tap water using the photocatalytic activity of the resulting NPs. Disposable screen-printed electrodes (SPCEs) modified with electroactive polyvinylpyridine bearing osmium complex (Os-PVP) by cyclic voltammetry (CV) were employed for PEC analytical system...
September 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28868204/impact-of-low-coagulation-factor-xiii-activity-in-patients-with-chronic-subdural-hematoma-associated-with-cerebrospinal-fluid-hypovolemia-a-retrospective-study
#10
Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Tomoaki Akiyama, Sei Haga, Toshiyuki Amano, Yoshihiko Furuta, Kei Murao, Shuji Arakawa, Iwao Takeshita
BACKGROUND: Cerebrospinal fluid hypovolemia (CSFH) is sometimes associated with chronic subdural hematomas (CSHs). Affected patients often develop enlargement and recurrence of the CSH, even if appropriate treatments such as epidural blood patch (EBP) and/or burr-hole surgery for the CSH are performed. This situation may lead to subclinical coagulopathy, including low coagulation factor XIII (CFXIII) activity. We retrospectively analyzed whether CFXIII activity was involved in the development of CSHs and post-treatment exacerbation of CSHs in patients with CSFH...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28859921/greater-hypertrophy-can-be-achieved-with-associating-liver-partition-with-portal-vein-ligation-for-staged-hepatectomy-compared-to-conventional-staged-hepatectomy-but-with-a-higher-price-to-pay
#11
Daryl K A Chia, Zachery Yeo, Stanley E K Loh, Shridhar Ganpathi Iyer, Glenn Kunnath Bonney, Krishnakumar Madhavan, Alfred W C Kow
BACKGROUND: Associating liver partition with portal vein ligation for staged hepatectomy (ALPPS) and conventional staged hepatectomy (CSH) are options for patients with unresectable liver tumors due to insufficient future liver remnant (FLR). METHODS: A retrospective comparison of clinical data, liver volumetry and surgical outcomes between 10 ALPPS and 29 CSH patients was performed. RESULTS: Patient demographics and disease characteristics were similar between both groups...
August 26, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28859575/variation-in-cell-surface-characteristics-and-extracellular-polymeric-substances-during-the-biodegradation-of-monocyclic-and-heterocyclic-aromatic-hydrocarbons-in-single-and-multi-substrate-systems
#12
Akashdeep Singh Oberoi, Ligy Philip
The variation in surface characteristics and the composition of extracellular polymeric substances (EPS) of bacterial cells during biodegradation of single and multi-aromatic hydrocarbons was investigated in the present study. The maximum cell surface hydrophobicity (CSH) of 80.1% was observed during the degradation of toluene. Bacterial cells acquired more negative surface charge with increase in CSH and vice-versa. Proteins constituted the major fraction of EPS during biodegradation of benzene and toluene with protein/carbohydrate ratio varying between 2...
September 1, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28859476/investigation-of-the-effects-of-sodium-dicarboxylates-on-the-crystal-habit-of-calcium-sulfate-%C3%AE-hemihydrate
#13
Yongbo Tang, Jianming Gao
The effects of disodium malonate, disodium succinate, disodium glutarate, and disodium adipate on the crystal habit of calcium sulfate α-hemihydrate (CaSO4·0.5H2O, α-CSH) were studied using experimental studies and molecular dynamics simulations. The calculation and experimental results provided insight into the mechanism of the interaction between the additives mentioned above and the different faces of α-CSH that dominate the morphology of α-CSH. The calculation results indicated that the formation of high-aspect-ratio α-CSH, namely, calcium sulfate α-hemihydrate whiskers (α-CSH whiskers), in aqueous solution was due to the interaction between liquid water and side faces of the α-CSH crystal, which inhibits the growth of α-CSH along the radial direction...
September 12, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28797942/high-calcium-fly-ash-geopolymer-stabilized-lateritic-soil-and-granulated-blast-furnace-slag-blends-as-a-pavement-base-material
#14
Itthikorn Phummiphan, Suksun Horpibulsuk, Runglawan Rachan, Arul Arulrajah, Shui-Long Shen, Prinya Chindaprasirt
Granulated Blast Furnace Slag (GBFS) was used as a replacement material in marginal lateritic soil (LS) while class C Fly Ash (FA) was used as a precursor for the geopolymerization process to develop a low-carbon pavement base material at ambient temperature. Unconfined Compression Strength (UCS) tests were performed to investigate the strength development of geopolymer stabilized LS/GBFS blends. Scanning Electron Microscopy and X-ray Diffraction analysis were undertaken to examine the role of the various influencing factors on UCS development...
July 31, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28773021/nanoscaled-mechanical-properties-of-cement-composites-reinforced-with-carbon-nanofibers
#15
Salim Barbhuiya, PengLoy Chow
This paper reports the effects of carbon nanofibers (CNFs) on nanoscaled mechanical properties of cement composites. CNFs were added to cement composites at the filler loading of 0.2 wt % (by wt. of cement). Micrographs based on scanning electron microscopy (SEM) show that CNFs are capable of forming strong interfacial bonding with cement matrices. Experimental results using nanoindentation reveal that the addition of CNFs in cement composites increases the proportions of high-density calcium-silicate-hydrate gel (HD-CSH) compared to low-density CSH gel...
June 16, 2017: Materials
https://www.readbyqxmd.com/read/28762523/prediction-accuracy-and-variable-selection-for-penalized-cause-specific-hazards-models
#16
Maral Saadati, Jan Beyersmann, Annette Kopp-Schneider, Axel Benner
We consider modeling competing risks data in high dimensions using a penalized cause-specific hazards (CSHs) approach. CSHs have conceptual advantages that are useful for analyzing molecular data. First, working on hazards level can further understanding of the underlying biological mechanisms that drive transition hazards. Second, CSH models can be used to extend the multistate framework for high-dimensional data. The CSH approach is implemented by fitting separate proportional hazards models for each event type (iCS)...
August 1, 2017: Biometrical Journal. Biometrische Zeitschrift
https://www.readbyqxmd.com/read/28760455/association-between-virulence-profile-biofilm-formation-and-phylogenetic-groups-of-escherichia-coli-causing-urinary-tract-infection-and-the-commensal-gut-microbiota-a-comparative-analysis
#17
Zahra Hashemizadeh, Davood Kalantar-Neyestanaki, Shahla Mansouri
Variety of virulence factors are involved in the pathogenicity of Escherichia coli, the common cause of the urinary tract infections (UTIs). The aim of this study was to determine some virulence factors involved in the pathogenicity and the phylogenetic grouping of E. coli from UTIs compared with the E. coli isolates from gut microbiota (fecal flora). The isolates were tested for biofilm formation, haemagglutination, cell surface hydrophobicity (CSH), hemolysin production, phylogenetic grouping and the distribution of 6 known virulence genes...
July 29, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28730269/emergence-of-candida-glabrata-in-vulvovaginal-candidiasis-should-be-attributed-to-selective-pressure-or-virulence-ability
#18
Sandra Sayuri Nakamura-Vasconcelos, Adriana Fiorini, Pamela Delvas Zanni, Patrícia de Souza Bonfim-Mendonça, Janine Ribeiro Godoy, Adriana Araújo Almeida-Apolonio, Marcia Edilaine Lopes Consolaro, Terezinha Inez Estivalet Svidzinski
PURPOSE: Vulvovaginal candidiasis (VVC) is one of the most frequent female genital disorders and Candida glabrata is the second most common agent. Current study was aimed to study the susceptibility to antifungal agents of C. glabrata isolated from vaginal samples and some virulence attributes in order to better understand why this species is emerging as the main VVC agents. METHODS: A total of 60 C. glabrata vaginal isolates were included in this study. Firstly they were screened by susceptibility tests to antifungal agents...
July 20, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28711452/hematopoietic-stem-cell-transplantation-in-algeria
#19
REVIEW
Mohamed Amine Bekadja, Mohamed Brahimi, Soufi Osmani, Nabil Yafour, Amina Krim, Faiza Serradj, Souad Talhi, Kamila Amani, Rachid Amar Bouhass
INTRODUCTION: Algeria is a country of 40,.4 million inhabitants and half of which is under 30years. In Algeria, Health-care insurance covered, 90% of the population. Health care is free and it is supported by the Ministry of Health. 16 university hospitals exist in Algeria and only two (Algiers and Oran) practicing bone marrow transplant. Adult hematologic malignancies account for 10% (about 4000 new cases/year) of the malignancy affecting in most cases young patients under 65years of age...
July 11, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28674772/detection-of-unexpected-emergency-diseases-using-fdg-pet-ct-in-oncology-patients
#20
Akira Toriihara, Emi Yamaga, Masashi Nakadate, Jun Oyama, Ukihide Tateishi
PURPOSE: To evaluate the frequency of emergency diseases that were detected unexpectedly using FDG-PET/CT. MATERIALS AND METHODS: Interpretation reports for 11,663 FDG-PET/CT studies in our hospital were retrospectively reviewed. Patients with major emergency diseases were extracted according to the following exclusion criteria: (1) relevant findings had been recognized prior to the PET/CT; (2) an intervention or operation that may have been relevant to the present findings was performed within 1 month prior to the PET/CT; and (3) the clinical course could not be investigated sufficiently (e...
July 3, 2017: Japanese Journal of Radiology
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