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https://www.readbyqxmd.com/read/29148734/unraveling-the-role-of-structural-order-in-the-transformation-of-electrical-conductivity-in-ca2fecoo6-%C3%AE-casrfecoo6-%C3%AE-and-sr2fecoo6-%C3%AE
#1
Ram Krishna Hona, Ashfia Huq, Farshid Ramezanipour
The ability to control the electrical conductivity of solid-state oxides using structural parameters has been demonstrated. A correlation has been established between the electrical conductivity and structural order in a series of oxygen-deficient perovskites using X-ray and neutron diffraction, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and electrical conductivity studies at a wide temperature range, 25-800 °C. The crystal structure of CaSrFeCoO6-δ has been determined, and its stark contrast to Ca2FeCoO6-δ and Sr2FeCoO6-δ has been demonstrated...
November 17, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29135625/impact-of-sex-on-long-term-clinical-outcomes-after-percutaneous-coronary-intervention
#2
Seyed-Mohammad Ghoreyshi-Hefzabad, Seyed-Ebrahim Kassaian, Shahrbanoo Kheirkhah-Sabetghadam, Arash Jalali, Hamidreza Poorhosseini, Mohammad Reza Movahed, Ebrahim Nematipour, Mojtaba Salarifar, Mohammad Alidoosti, Seyedeharezoo Ghoreyshi-Hefzabad, Farshid Alaeddini, Saeed Sadeghian, Masoumeh Lotfi-Tokaldany
AIMS: To evaluate the impact of sex on long-term clinical outcomes after percutaneous coronary intervention (PCI). METHODS: In a large prospective cohort, 5664 patients (1716 women and 3948 men) who underwent PCI in a tertiary cardiac center between March 2007 and March 2010 were enrolled. Patients were followed up for median of 74.3 months. We compared the occurrence of long-term mortality, myocardial infarction (MI), and repeated revascularization between 2 sexes...
December 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/29133441/universal-biology-and-the-statistical-mechanics-of-early-life
#3
Nigel Goldenfeld, Tommaso Biancalani, Farshid Jafarpour
All known life on the Earth exhibits at least two non-trivial common features: the canonical genetic code and biological homochirality, both of which emerged prior to the Last Universal Common Ancestor state. This article describes recent efforts to provide a narrative of this epoch using tools from statistical mechanics. During the emergence of self-replicating life far from equilibrium in a period of chemical evolution, minimal models of autocatalysis show that homochirality would have necessarily co-evolved along with the efficiency of early-life self-replicators...
December 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29124314/prophylactic-dna-vaccine-targeting-foxp3-regulatory-t-cells-depletes-myeloid-derived-suppressor-cells-and-improves-anti-melanoma-immune-responses-in-a-murine-model
#4
Afshin Namdar, Reza Mirzaei, Arash Memarnejadian, Roobina Boghosian, Morteza Samadi, Hamid Reza Mirzaei, Hamid Farajifard, Mehdi Zavar, Kayhan Azadmanesh, Shokrollah Elahi, Farshid Noorbakhsh, Abbas Rezaei, Jamshid Hadjati
Regulatory T cells (Treg) and myeloid-derived suppressor cells (MDSC) are the two important and interactive immunosuppressive components of the tumor microenvironment that hamper anti-tumor immune responses. Therefore, targeting these two populations together might be beneficial for overcoming immune suppression in the tumor microenvironment. We have recently shown that prophylactic Foxp3 DNA/recombinant protein vaccine (Foxp3 vaccine) promotes immunity against Treg in tumor-free conditions. In the present study, we investigated the immune modulatory effects of a prophylactic regimen of the redesigned Foxp3 vaccine in the B16F10 melanoma model...
November 9, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29117721/enhanced-sciatic-nerve-regeneration-by-human-endometrial-stem-cells-in-an-electrospun-poly-%C3%AE%C2%B5-caprolactone-collagen-nbg-nerve-conduit-in-rat
#5
Forouzan Mohamadi, Somayeh Ebrahimi-Barough, Mohammad Reza Nourani, Korosh Mansoori, Majid Salehi, Ali Akbar Alizadeh, Seyed Mohammad Tavangar, Farshid Sefat, Siavash Sharifi, Jafar Ai
In recent years, for neurodegenerative diseases therapy, research has focused on the stem cells therapy. Due to promising findings in stem cell therapy, there are various sources of stem cells for transplantation in human. The aim of this study was to evaluate sciatic nerve regeneration in the rat after nerve transaction followed by human endometrial stem cells (hEnSCs) treatment into poly (e-caprolactone)/collagen/nanobioglass (PCL/collagen/NBG) nanofibrous conduits. After treatment of animals, the performance in motor and sensory tests, showed significant improvement in rats treated with hEnSCs as an autograft...
November 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29112279/nutrients-intake-and-serum-calcium-and-phosphorus-levels-an%C3%A2-evidence-based-study
#6
Zahra Jafari Giv, Amir Avan, Farshid Hamidi, Maryam Tayefi, Sayyed Saeid Khayyatzadeh, Ali Javandoost, Mohsen Nematy, Gordon A Ferns, Majid Ghayour Mobarhan
INTRODUCTION: Dietary calcium and phosphorus appear to be important determinants of dyslipidemia and hypertension. We have investigated (1) the prevalence of hypocalcemia and hypophosphatemia in an Iranian population, and (2) the association between nutrient's intake and serum levels of calcium and phosphorus. METHODS: A total of 908 individuals were enrolled using a stratified-cluster sampling method from the Mashhad stroke and heart atherosclerosis disorder (MASHHAD) study...
November 7, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29099502/active-surveillance-of-women-diagnosed-with-atypical-ductal-hyperplasia-on-core-needle-biopsy-may-spare-many-women-potentially-unnecessary-surgery-but-at-the-risk-of-undertreatment-for-a-minority-10-year-surgical-outcomes-of-114-consecutive-cases-from-a-single
#7
Gelareh Farshid, Suzanne Edwards, James Kollias, Peter Grantley Gill
A needle core biopsy diagnosis of atypical ductal hyperplasia is an indication for open biopsy. The launch of randomized clinical trials of active surveillance for low-risk ductal carcinoma in situ leads to the paradoxical situation of women with low-grade ductal carcinoma in situ being observed, whereas those with atypical ductal hyperplasia have surgery. If the malignancies diagnosed after surgery for atypical ductal hyperplasia are dominated by low-risk ductal carcinoma in situ, women with atypical ductal hyperplasia may also be considered for surveillance...
November 3, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29098140/mpgn-and-mixed-cryoglobulinemia-in-a-patient-with-hepatitis-c-new-treatment-implications-and-renal-outcomes
#8
Shannon B Palombo, Eric C Wendel, Laura R Kidd, Farshid Yazdi, Mihran V Naljayan
. INTRODUCTION: The association of hepatitis C virus (HCV), cryoglobulinemia, and membranoproliferative glomerulonephritis (MPGN) is well known. Treatment of underlying HCV infection has greatly improved in recent years with the introduction of direct-acting antivirals (DAA), which have demonstrated curative sustained viral response (SVR) rates for select viral genotypes with the added benefit of less drug side effects. However, a mainstay of newer DAAs is sofosbuvir, which is contraindicated in patients with severe renal impairment...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29090690/tip-enhanced-raman-spectroscopy-of-amyloid-%C3%AE-at-neuronal-spines
#9
Mohammadali Tabatabaei, Fabiana A Caetano, Farshid Pashee, Stephen S G Ferguson, François Lagugné-Labarthet
The early stages of Alzheimer's disease pathogenesis are thought to occur at the synapse level, since synapse loss can be directly correlated with memory dysfunction. Considerable evidence has suggested that amyloid beta (Aβ), a secreted proteolytic derivative of amyloid precursor protein, appears to be a critical factor in the early 'synaptic failure' that is observed in Alzheimer's disease pathogenesis. The identification of Aβ at neuronal spines with high spatial resolution and high surface specificity would facilitate unraveling the intricate effect of Aβ on synapse loss and its effect on neighboring neuronal connections...
November 1, 2017: Analyst
https://www.readbyqxmd.com/read/29089106/development-of-carbotrap-b-packed-needle-trap-device-for-determination-of-volatile-organic-compounds-in-air
#10
Ali Poormohammadi, Abdulrahman Bahrami, Maryam Farhadian, Farshid Ghorbani Shahna, Alireza Ghiasvand
Carbotrap B as a highly pure surface sorbent with excellent adsorption/desorption properties was packed into a stainless steel needle to develop a new needle trap device (NTD). The performance of the prepared NTD was investigated for sampling, pre-concentration and injection of benzene, toluene, ethyl benzene, o-xylene, and p-xylene (BTEX) into the column of gas chromatography-mass spectrometry (GC-MS) device. Response surface methodology (RSM) with central composite design (CCD) was also employed in two separate consecutive steps to optimize the sampling and device parameters...
October 26, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29082608/ion-pair-based-hollow-fiber-liquid-phase-microextraction-combined-with-high-performance-liquid-chromatography-for-the-simultaneous-determination-of-urinary-benzene-toluene-and-styrene-metabolites
#11
Abdulrahman Bahrami, Farhad Ghamari, Yadollah Yamini, Farshid Ghorbani Shahna, Ali Koolivand
In the current study, a novel technique for extraction and determination of trans,trans-muconic acid, hippuric acid, and mandelic acid was developed by means of ion-pair-based hollow fiber liquid-phase microextraction in the three-phase mode. Important factors affecting the extraction efficiency of the method were investigated and optimized. These metabolites were extracted from 10 mL of the source phase into a supported liquid membrane containing 1-octanol and 10% w/v of Aliquat 336 as the ionic carrier followed by high-performance liquid chromatography analysis...
October 30, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29079483/urinary-carbohydrate-antigen-19-9-creatinine-ratio-a-non-invasive-marker-for-follow-up-of-unilateral-ureteropelvic-junction-obstruction-in-children
#12
Farshid Alizadeh, Ali Mohammad Taefnia, Saeid Haghdani
INTRODUCTION: Ureteropelvic junction obstruction (UPJO) is the most common cause of hydronephrosis in children. One major challenge in the management of UPJO is to select the patients that must be subjected to early obstruction relief. Currently, there is no gold standard for this assessment. Therefore, the aim of the present study was to evaluate the urinary levels of carbohydrate antigen (CA) 19-9 and normalized CA 19-9 (Ca 19-9/Cr ratio) in UPJO patients before and after surgery and compare them with a control group to assess their potential clinical application as an assisting tool in diagnosis of UPJO patients...
October 13, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29066011/socioeconomic-equity-in-the-receipt-of-in-hospital-care-and-outcomes-in-australian-acute-coronary-syndrome-patients-the-concordance-registry
#13
Karice Hyun, Julie Redfern, Mark Woodward, Mario D'Souza, Pratap Shetty, Derek Chew, Nadarajah Kangaharan, Ahmad Farshid, Kevin Alford, Tom Briffa, David Brieger
BACKGROUND: Socioeconomic status (SES) is a social determinant of both health and receipt of health care services, but its impact is under-studied in acute coronary syndrome (ACS). The aim of this study was to examine the influence of SES on in-hospital care, and clinical events for patients presenting with an ACS to public hospitals in Australia. METHODS: Data from 9064 ACS patient records were collected from 41 public hospitals nationwide from 2009 as part of the Cooperative National Registry of Acute Coronary Syndrome Care (CONCORDANCE) registry...
September 20, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29058003/modelling-of-dictyostelium-discoideum-movement-in-a-linear-gradient-of-chemoattractant
#14
Zahra Eidi, Farshid Mohammad-Rafiee, Mohammad Khorrami, Azam Gholami
Chemotaxis is a ubiquitous biological phenomenon in which cells detect a spatial gradient of chemoattractant, and then move towards the source. Here we present a position-dependent advection-diffusion model that quantitatively describes the statistical features of the chemotactic motion of the social amoeba Dictyostelium discoideum in a linear gradient of cAMP (cyclic adenosine monophosphate). We fit the model to experimental trajectories that are recorded in a microfluidic setup with stationary cAMP gradients and extract the diffusion and drift coefficients in the gradient direction...
November 15, 2017: Soft Matter
https://www.readbyqxmd.com/read/29038529/hybrid-structure-of-white-layer-in-high-carbon-steel-formation-mechanism-and-its-properties
#15
Rumana Hossain, Farshid Pahlevani, Evelien Witteveen, Amborish Banerjee, Bill Joe, B Gangadhara Prusty, Rian Dippenaar, Veena Sahajwalla
This study identifies for the first time, the hybrid structure of the white layer in high carbon steel and describes its formation mechanism and properties. The so-called 'white layer' in steel forms during high strain rate deformation and appears featureless under optical microscopy. While many researchers have investigated the formation of the white layer, there has been no definitive study, nor is there sufficient evidence to fully explain the formation, structure and properties of the layer. In this study, the formation, morphology and mechanical properties of the white layer was determined following impact testing, using a combination of optical and SE- microscopy, HR-EBSD, TKD and TEM as well as nano-indentation hardness measurements and FE modelling...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28991377/ebsd-investigation-of-al-al13-fe4-al2-o3-nanocomposites-fabricated-by-mechanical-milling-and-friction-stir-processing
#16
Ghasem Azimi-Roeen, Seyed Farshid Kashani-Bozorg, Martin Nosko, Lubomir Orovcik
The application of ball-milling for reactant powders (Fe2 O3 +Al) to form in situ nanosized reaction products in the stir zone of 1050 aluminium alloy was examined and the evolution of microstructure, grain boundaries and microtexture of the fabricated Al/(Al13 Fe4 +Al2 O3 ) nanocomposite was investigated. The mean matrix grain size of the fabricated nanocomposites by the combination of ball milling and friction stir processing were found to be ∼3.2, 3.1 and 2.1 μm for 1, 2 and 3 h milled powder mixtures, respectively...
October 9, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28990314/female-breast-cancer-management-and-survival-the-experience-of-major-public-hospitals-in-south-australia-over-3-decades-trends-by-age-and-in-the-elderly
#17
David Roder, Gelareh Farshid, Jim Kollias, Bogda Koczwara, Christos Karapetis, Jacqui Adams, Rohit Joshi, Dorothy Keefe, Caroline Miller, Kate Powell, Kellie Fusco, Marion Eckert, Elizabeth Buckley, Kerri Beckmann, Timothy Price
BACKGROUND: Clinical registry data from major South Australian public hospitals were used to investigate trends in invasive breast-cancer treatment and survival by age. METHODS: Disease-specific survival was calculated for the 1980 to 2013 diagnostic period using Kaplan-Meier product-limit estimates, with a censoring of live cases on December 31, 2014. Cox proportional hazards regression was used to examine differences in survival by age and tumour characteristic...
October 8, 2017: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/28986738/binding-studies-of-isoxsuprine-hydrochloride-to-calf-thymus-dna-using-multispectroscopic-and-molecular-docking-techniques
#18
Sadegh Salehzadeh, Farshid Hajibabaei, Neda Hosseinpour Moghadam, Samira Sharifinia, Sadegh Khazalpour, Reza Golbedaghi
In the present work, the interaction of Isoxsuprine (ISX) with Calf thymus DNA (ct-DNA) under physiological conditions (Tris-HCl buffer of pH 7.4) was investigated by using electronic absorption, circular dichroism, viscosity, electrochemical studies, fluorescence techniques, salt effect studies and computational studies. Competitive fluorimetric studies with Hoechst 33258 have shown that ISX exhibit the ability to displace the DNA-bound Hoechst 33258, indicating that it binds to ct-DNA in strong competition with Hoechst 33258 for the minor groove binding...
October 6, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/28985287/bariatric-surgery-and-hypertension
#19
Jonathan G Owen, Farshid Yazdi, Efrain Reisin
Obesity continues to increase in prevalence worldwide. Hypertension has long been associated with obesity, and weight loss continues to be a first-line therapy in the treatment of hypertension. Lifestyle modification and pharmacologic therapy, however, often meet with treatment failure. Bariatric surgery continues to be the most successful approach to sustained weight loss. This review focuses on the underlying physiologic mechanisms of obesity-hypertension, and the impact of bariatric surgery on the treatment of hypertension...
August 11, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28974981/docking-study-synthesis-and-antimicrobial-evaluation-of-some-novel-4-anilinoquinazoline-derivatives
#20
Rezvan Rezaee Nasab, Farshid Hassanzadeh, Ghadam Ali Khodarahmi, Mahboubeh Rostami, Mahmoud Mirzaei, Ali Jahanian-Najafabadi, Mahboubeh Mansourian
A series of novel 4-anilinoquinazoline derivatives were designed and synthesized from benzoic acid through ring closure, chlorination or nucleophilic substitution. The structures of compounds were characterized by IR, (1)H-NMR and mass spectroscopy. All synthesized derivatives were screened for their antimicrobial activities against Gram-positive (Staphylococcus aurous, Bacillus subtilis, Listeria monocitogenes) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa, Salmonella entritidis) bacteria and also for antifungal activities against Candida albicans using the conventional micro dilution method...
October 2017: Research in Pharmaceutical Sciences
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