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https://www.readbyqxmd.com/read/28934549/selective-electrodeposition-of-tantalum-v-oxide-electrodes
#1
Hamed Hajibabaei, Thomas W Hamann
Thin films of TaOxHy were cathodically electrodeposited from an aqueous solution containing Ta-IPA precursor and KNO3 as a sacrificial agent. It was shown that the deposition resulted from a precipitation reaction triggered by the local change of pH at the surface of working electrode. Combined structural and compositional analysis revealed that during the electrodeposition the oxidation state of tantalum remained constant, Ta(V). The as-deposited films are mesoporous amorphous tantalum oxide hydrate films, which can be converted to either pure Ta2O5 or Ta3N5 by high-temperature annealing in either air (or Ar) or ammonia, respectively...
September 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28932893/undifferentiated-pleomorphic-sarcoma-indolent-tail-like-recurrence-of-a-high-grade-tumor
#2
Justin S Alpert, Patrick Boland, Meera Hameed, David M Panicek
Recurrence of a soft tissue sarcoma typically manifests as a round or oval mass at imaging, and recurrent high-grade soft tissue sarcomas generally enlarge relatively rapidly. We present a case of high-grade undifferentiated pleomorphic sarcoma in the calf of a 48-year-old male that recurred as a thin, curvilinear "tail" of enhancing tissue at magnetic resonance imaging (MRI), with extremely indolent growth over a 7-year period. The unusual imaging finding of a slowly enlarging "tail" should not be dismissed as postoperative changes, even for a high-grade soft tissue sarcoma...
September 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28932152/human-salivary-protein-extraction-from-rnapro%C3%A2-sal%C3%A2-pure%C3%A2-sal%C3%A2-and-passive-drooling-method
#3
Zohaib Khurshid, Syed Faraz Moin, Rabia Sannam Khan, Muhammad Atif Saleem Agwan, Abdullah Hamed Alwadaani, Muhammad Sohail Zafar
OBJECTIVE: The aim of the current study was to carry out a preliminary validation of devices for standardized collection of whole mouth fluid (WMF) in comparison to the passive drooling method for protein analysis in healthy subjects. MATERIALS AND METHODS: A carefully designed sample collection/pretreatment protocol is crucial to the success of any saliva proteomics project. In this study, WMF was collected from healthy volunteers (n = 10, ages: 18-26 years). Individuals with any oral disease were excluded from the study group...
July 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28930046/canadian-benchmarks-for-acute-injury-care
#4
Lynne Moore, David Evans, Natalie L Yanchar, Jaimini Thakore, Henry Thomas Stelfox, Sayed Morad Hameed, Richard Simons, John Kortbeek, Julien Clément, François Lauzier, Alexis F Turgeon
BACKGROUND: Acute care injury outcomes vary substantially across Canadian provinces and trauma centres. Our aim was to develop Canadian benchmarks to monitor mortality and hospital length of stay (LOS) for injury admissions. METHODS: Benchmarks were derived using data from the Canadian National Trauma Registry on patients with major trauma admitted to any level I or II trauma centre in Canada and from the following patient subgroups: isolated traumatic brain injury (TBI), isolated thoracoabdominal injury, multisystem blunt injury, age 65 years or older...
October 1, 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28926182/water-dynamics-and-proton-transport-mechanisms-of-nafion%C3%A2-117-phosphotungstic-acid-composite-membrane-a-molecular-dynamics-study
#5
Saeed Akbari, Mohammad Taghi Hamed Mosavian, Ali Ahmadpour, Fatemeh Moosavi
Nafion®/phosphotungstic acid composite membrane and impact of varying concentration of heteropoly acid (HPA) on the well-known effective mechanisms of proton transport were investigated using classical and quantum hopping molecular dynamics simulation. Our simulations demonstrated that the HPA particles exhibited a favorable influence on Grotthuss mechanism in proton transportation at low hydration levels. From radial distribution function examinations, it was found that HPA particles were solvated with water and also exhibited stronger affinity toward hydronium ions...
September 19, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28923405/positive-mood-on-the-day-of-influenza-vaccination-predicts-vaccine-effectiveness-a-prospective-observational-cohort-study
#6
Kieran Ayling, Lucy Fairclough, Paddy Tighe, Ian Todd, Vanessa Halliday, Jon Garibaldi, Simon Royal, Aljali Hamed, Heather Buchanan, Kavita Vedhara
Influenza vaccination is estimated to only be effective in 17-53% of older adults. Multiple patient behaviors and psychological factors have been shown to act as 'immune modulators' sufficient to influence vaccination outcomes. However, the relative importance of such factors is unknown as they have typically been examined in isolation. The objective of the present study was to explore the effects of multiple behavioral (physical activity, nutrition, sleep) and psychological influences (stress, positive mood, negative mood) on the effectiveness of the immune response to influenza vaccination in the elderly...
September 15, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28922252/clinical-predictors-and-natural-history-of-disease-extension-in-patients-with-ulcerative-proctitis
#7
Emily Walsh, Young Wha Chah, Samantha M Chin, Paul Lochhead, Vijay Yajnik, Vera Denmark, John J Garber, Hamed Khalili
BACKGROUND: A proportion of patients with initial presentation of ulcerative proctitis (UP) progress to more extensive colitis. We sought to characterize the natural history and identify clinical predictors of extension in UP. METHODS: We performed a retrospective cohort study of participants with a new diagnosis of UP from January 2000 to December 2015. We used Cox proportional hazard modeling to identify predictors of disease extension. RESULTS: We identified 169 new cases of UP with a median age of diagnosis of 40 years (range: 16-91 yr) and a median follow-up of 4...
August 23, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28922114/cross-modal-scene-networks
#8
Yusuf Aytar, Lluis Castrejon, Carl Vondrick, Hamed Pirsiavash, Antonio Torralba
People can recognize scenes across many different modalities beyond natural images. In this paper, we investigate how to learn cross-modal scene representations that transfer across modalities. To study this problem, we introduce a new cross-modal scene dataset. While convolutional neural networks can categorize scenes well, they also learn an intermediate representation not aligned across modalities, which is undesirable for cross-modal transfer applications. We present methods to regularize cross-modal convolutional neural networks so that they have a shared representation that is agnostic of the modality...
September 18, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28922046/supraorbital-electrical-stimulation-in-management-of-chronic-type-tension-headache-a-randomized-controlled-study
#9
Nashwa S Hamed
BACKGROUND AND PURPOSE: Headache disorders are considered one of the ten most disabling conditions, for both males and females, according to the World Health Organization. Chronic type tension headache (CTTH) has a prevalence of 2-3% within the general population. The purpose of this research was to investigate the effect of stimulating noninvasively the trigeminal nerve in the supraorbital area (SOES) for treatment of CTTH. METHODS: In an 8-week period of intervention, 45 patients were divided equally into three groups...
September 18, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28920114/nano-and-micromotors-for-cleaning-polluted-waters-focused-review-on-pollutant-removal-mechanisms
#10
REVIEW
Hamed Eskandarloo, Arkaye Kierulf, Alireza Abbaspourrad
Nano- and micromotors are machines designed to self-propel and-in the process of propelling themselves-perform specialized tasks like cleaning polluted waters. These motors offer distinct advantages over conventionally static decontamination methods, owing to their ability to move around and self-mix-which heightens the interaction between their active sites and target pollutants-thus improving their speed and efficiency, which could potentially decrease treatment times and costs. In the last decade, considerable research efforts have been expended on exploring various mechanisms by which these motors can self-propel and remove pollutants, proving that the removal of oil droplets, heavy metals, and organic compounds using these synthetic motors is possible...
September 18, 2017: Nanoscale
https://www.readbyqxmd.com/read/28919917/anxiety-but-not-depression-is-associated-with-metabolic-syndrome-the-isfahan-healthy-heart-program
#11
Hamed Akbari, Nizal Sarrafzadegan, Hamid Aria, Alireza Gholami Garaei, Habib Zakeri
BACKGROUND: Only a few studies have carried out to evaluate the association of depression and anxiety with metabolic syndrome (MetS). The aim of this study was to investigate whether the depression and anxiety are associated with MetS and its different components. MATERIALS AND METHODS: This cross-sectional study forms part of the prospective Isfahan Cohort Study. A total of 470 participants were chosen. Anxiety and depression symptoms were measured using hospital anxiety and depression scale (HADS)...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28919672/preparation-and-evaluation-of-salmonella-enteritidis-antigen-conjugated-with-nanogold-for-screening-of-poultry-flocks
#12
Hazem Mohammed Ibrahim, Rafik Hamed Sayed, Wafaa Ragab Abdel-Aziz, Rafik Tawfik Soliman
AIM: The present work aimed to develop lateral flow immunochromatographic strip (ICS) test for detection of Salmonella Enteritidis (SE) specific antibodies in chicken sera. MATERIALS AND METHODS: A rapid lateral flow immunochromatographic test (LFIT) has been developed, in which SE Group D antigen labeled with the gold chloride molecules laid on the conjugate pad. Staphylococcus aureus protein A was used as capture antibody at the test line (T) of a nitrocellulose (NC) membrane and anti-SE antigen-specific rabbit antibodies were used as capture antibody at the control line (C) of the NC strip in the lateral flow layout device...
August 2017: Veterinary World
https://www.readbyqxmd.com/read/28919526/chemical-crosslinking-of-biopolymeric-scaffolds-current-knowledge-and-future-directions-of-crosslinked-engineered-bone-scaffolds
#13
REVIEW
Ahmad Oryan, Amir Kamali, Ali Moshiri, Hossien Baharvand, Hamed Daemi
Bone tissue scaffolds made from either natural or synthetic polymers are employed to promote bone healing. However, lack of sufficient or poor mechanical properties such as low integrity and stability reduces their medical applications. Crosslinking, defined as induction of chemical or physical links among polymer chains, is a simple method generally used to modify mechanical, biological and degradation properties of hydrogels. Although crosslinking through chemical reactions improves the mechanical properties of bone substitutes, most of the reagents used for this aim demonstrate undesirable effects and may exert toxic reactions...
September 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28919029/recent-advances-of-controlled-drug-delivery-using-microfluidic-platforms
#14
REVIEW
Sharma T Sanjay, Wan Zhou, Maowei Dou, Hamed Tavakoli, Lei Ma, Feng Xu, XiuJun Li
Conventional systematically-administered drugs distribute evenly throughout the body, get degraded and excreted rapidly while crossing many biological barriers, leaving minimum amounts of the drugs at pathological sites. Controlled drug delivery aims to deliver drugs to the target sites at desired rates and time, thus enhancing the drug efficacy, pharmacokinetics, and bioavailability while maintaining minimal side effects. Due to a number of unique advantages of the recent microfluidic lab-on-a-chip technology, microfluidic lab-on-a-chip has provided unprecedented opportunities for controlled drug delivery...
September 15, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28918345/meta-analysis-on-the-impact-of-the-acute-care-surgery-model-of-disease-specific-and-patient-outcomes-in-appendicitis-and-biliary-disease
#15
Patrick B Murphy, Kristin DeGirolamo, Theunis Jean Van Zyl, Laura Allen, Elliott Haut, W Robert Leeper, Ken Leslie, Neil Parry, Morad Hameed, Kelly N Vogt
BACKGROUND: The acute care surgery (ACS) model was developed to acknowledge the complexity of a traditionally fractured emergency general surgery patient population; however there are variations in the design of ACS service models. This meta-analysis analyzes the impact of implementation of different ACS models on the outcomes for appendicitis and biliary disease. STUDY DESIGN: A systematic, English-language search of major databases was conducted. From 1,827 papers, 2 independent reviewers identified 25 studies that reported on outcomes for patients with appendicitis (13) biliary disease (7) or both (5) before and after implementation of an ACS service...
September 13, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28918091/opposed-effects-of-dityrosine-formation-in-soluble-and-aggregated-%C3%AE-synuclein-on-fibril-growth
#16
Michael M Wördehoff, Hamed Shaykhalishahi, Luca Groß, Lothar Gremer, Matthias Stoldt, Alexander K Buell, Dieter Willbold, Wolfgang Hoyer
Parkinson's disease (PD) is the second most common neurodegenerative disease. It is characterized by aggregation of the protein α-synuclein (α-syn) in Lewy bodies, mitochondrial dysfunction, and increased oxidative stress in the substantia nigra. Oxidative stress leads to several modifications of biomolecules including dityrosine (DiY)-crosslinking in proteins, which has recently been detected in α-syn in Lewy bodies from PD patients. Here we report that α-syn is highly susceptible to UV-induced DiY formation...
September 13, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28917123/identification-of-new-potent-inhibitor-of-aldose-reductase-from-ocimum-basilicum
#17
Huma Aslam Bhatti, Yildiz Tehseen, Kiran Maryam, Maliha Uroos, Bina S Siddiqui, Abdul Hameed, Jamshed Iqbal
Recent efforts to develop cure for chronic diabetic complications have led to the discovery of potent inhibitors against aldose reductase (AKR1B1, EC 1.1.1.21) whose role in diabetes is well-evident. In the present work, two new natural products were isolated from the ariel part of Ocimum basilicum; 7-(3-hydroxypropyl)-3-methyl-8-β-O-d-glucoside-2H-chromen-2-one (1) and E-4-(6'-hydroxyhex-3'-en-1-yl)phenyl propionate (2) and confirmed their structures with different spectroscopic techniques including NMR spectroscopy etc...
September 5, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28917069/knowledge-attitude-and-practice-of-antibiotic-use-and-misuse-among-adults-in-riyadh-saudi-arabia
#18
Nouf Al-Shibani, Abdulaziz Hamed, Nawaf Labban, Reem Al-Kattan, Hanan Al-Otaibi, Sara Alfadda
To assess the knowledge, attitude, and practice of antibiotics (ABs) use and misuse among adults living in Riyadh, Saudi Arabia. Methods: In this cross-sectional study, a self-administered questionnaire was distributed to participants from  March 2016 to January 2017 in the outpatient department of King Khalid University Hospital and Dental Hospital, King Saud University, Riyadh, Saudi Arabia. The questionnaire was divided into 4 sections. The first and second section inquired regarding demographic details and knowledge of ABs...
October 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28916458/molecular-identification-of-waterborn-free-living-amoebae-acanthamoeba-naegleria-and-vermamoeba-isolated-from-municipal-drinking-water-and-environmental-sources-north-half-of-iran
#19
Ehsan Javanmard, Maryam Niyyati, Jacob Lorenzo-Morales, Zohreh Lasjerdi, Hamed Behniafar, Hamed Mirjalili
The present study tested 80 samples of municipal, geothermal and recreational water samples for the occurrence of waterborn free living amoebae (FLA) including Acanthamoeba, Balamuthia mandrillaris, Vahlkampfiids and Vermamoeba in Semnan province, North half of Iran. Four sets of primers including JDP1,2 primers, ITS1,2 primers (Vahlkampfiids), 16S rRNABal primers (Balamuthia mandrillaris) and NA1,2 primers (Vermamoeba) were used to confirm the morphological identification. From the 80 water samples tested in the present study, 16 (20%) were positive for the outgrowth of free living amoebae based on the morphological page key...
September 12, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28916158/pyrrolizines-design-synthesis-anticancer-evaluation-and-investigation-of-the-potential-mechanism-of-action
#20
Ahmed M Gouda, Ahmed H Abdelazeem, Hany A Omar, Ashraf N Abdalla, Mohammed A S Abourehab, Hamed I Ali
A novel set of pyrrolizine-5-carboxamides has been synthesized and evaluated for their anticancer potential against human breast MCF-7, lung carcinoma A549 and hepatoma Hep3B cancer cell lines. Compound 10c was the most active against MCF-7 with IC50 value of 4.72µM, while compound 12b was the most active against A549 and Hep3B cell lines. Moreover, kinases/COXs inhibition and apoptosis induction were suggested as potential molecular mechanisms for the anticancer activity of the novel pyrrolizines based on their structural features...
August 24, 2017: Bioorganic & Medicinal Chemistry
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