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Amar S Katkar, Shobhnath P Gupta, Md Motin Seikh, Lih-Juann Chen, Pravin S Walke
The Cr doped tunable thickness core-shell Ge/GeOx nanowires were synthesized and characterized using X-ray diffraction, FESEM, TEM, EDS, XPS and magnetization studies. The shell thickness increases with the increase in synthesis temperature. The presence of metallic Cr and Cr3+ in core-shell structure was confirmed from XPS study. The magnetic property is highly sensitive to the core-shell thickness and intriguing room temperature ferromagnetism is realized only in core-shell nanowires. The magnetization decreases with increase in shell thickness and practically ceases to exist when there is no core...
March 19, 2018: Nanotechnology
Yanqin Lu, Yanzhou Wang, Frank Rauch, Hu Li, Yao Zhang, Naixiang Zhai, Jian Zhang, Xiuzhi Ren, Jinxiang Han
Osteogenesis imperfecta (OI) and Ehlers-Danlos syndrome (EDS) are rare genetic disorders that are typically inherited in an autosomal dominant manner. Few cases of OI/EDS overlap syndrome have been documented. Described here is a 30-year-old Chinese male with OI type III and EDS. Sequencing of genomic DNA revealed a heterozygous COL1A1 mutation (c.671G>A, p.Gly224Asp) that affected the N-anchor domain of the alpha 1 chain of collagen type I. Ultrastructural analysis of a skin biopsy specimen revealed thin collagen fibers with irregular alignment of collagen fibers...
February 2018: Intractable & Rare Diseases Research
Douglas Steenblock
A 77-year-old woman who had been previously diagnosed with a major neurocognitive disorder became highly agitated and aggressive in a long-term care facility. She did not respond to intramuscular (IM) haloperidol plus lorazepam and had to be transported to the local emergency department (ED). In the ambulance, she remained highly agitated and was given 200 mg IM ketamine. Within minutes of receiving this, she de-escalated dramatically with no apparent adverse effects and remained stable for several days. Although ketamine has been used recently in pre-hospital settings and EDs to reduce agitated behavior, there has been little if any investigation of its potential for reducing behavior disturbances in patients who suffer from major neurocognitive disorders...
February 26, 2018: American Journal of Geriatric Psychiatry
Lau Kia Kian, Mohammad Jawaid, Hidayah Ariffin, Zoheb Karim
Roselle fiber is a renewable and sustainable agricultural waste enriched with cellulose polysaccharides. The isolation of Nanocrystalline cellulose (NCC) from roselle-derived microcrystalline cellulose (MCC) is an alternative approach to recover the agricultural roselle plant residue. In the present study, acid hydrolysis with different reaction time was carried out to degrade the roselle-derived MCC to form NCC. The characterizations of isolated NCC were conducted through Fourier Transform Infrared Ray (FTIR), Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy (FESEM), Atomic Force Microscopy (AFM), Dynamic Light Scattering (DLS), Energy Dispersive Spectroscopy (EDS), X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC)...
March 15, 2018: International Journal of Biological Macromolecules
Tony Zitek, Ignasia Tanone, Alexzza Ramos, Karina Fama, Ahmed S Ali
BACKGROUND: Urgent care centers (UCCs) can offer a cheap alternative to emergency departments (EDs) for some patients with acute complaints. However, if patients who initially present to a UCC are unnecessarily transferred to an ED, those patients may suffer undue financial harm. The group of patients transferred from UCCs to EDs have never previously been studied. OBJECTIVES: The primary objective of this study was to determine the fraction of transfers from a UCC to an ED that were unnecessary...
March 15, 2018: Journal of Emergency Medicine
Karl A Hujsak, Eric W Roth, William Kellogg, Yue Li, Vinayak P Dravid
Technological advances in electron microscopy, particularly improved detectors and aberration correctors, have led to higher throughput and less invasive imaging of materials and biological structures by enhancing signal-to-noise ratios at lower electron exposures. Analytical methods, such as electron energy loss spectroscopy (EELS) and energy dispersive x-ray spectrometry (EDS), have also benefitted and offer a rich set of local elemental and bonding information with nano-or atomic resolution. However, spatially resolved spectrum imaging with EELS and EDS continue to be difficult to scale due to limited detector collection angles or high signal background, requiring hours or even days for full maps...
March 10, 2018: Micron: the International Research and Review Journal for Microscopy
Kuo-Chen Huang, Yan-Ren Lin, Yuan-Jhen Syue, Chia-Te Kung, I-Min Chiu, Chao-Jui Li
BACKGROUND: There are fewer female emergency physicians (EPs) than male ones. This study attempted to analyze the differences in clinical practice between female and male EPs in the emergency department (ED). MATERIALS AND METHODS: A retrospective, 1-year cohort study was conducted across 4 EDs in the largest healthcare system in Taiwan. A total of 199,757 adult patients without trauma treated by 76 EPs (9 females and 67 males) were included in the study. The clinical practice of female and male EPs was compared...
March 2018: American Journal of the Medical Sciences
Taras R Reshetukha, Nazanin Alavi, Eric Prost, Ryan H Kirkpatrick, Saad Sajid, Charmy Patel, Dianne L Groll
OBJECTIVE: To determine the efficacy of two interventions on suicide risk assessment within emergency departments (EDs) on improving the documentation of suicide risk factors by emergency medicine and psychiatric physicians during suicide risk assessment. METHOD: An educational intervention on suicide was provided to all emergency medicine and psychiatry physicians and was followed by the placement of a suicide risk assessment prompt within local EDs. The medical charts of all ED patients presenting with suicidal ideation or behaviours were reviewed immediately and six months after the interventions and compared to pre-intervention...
March 2, 2018: General Hospital Psychiatry
Mohammed Dalwai, Katie Tayler-Smith, Michèle Twomey, Masood Nasim, Abdul Qayum Popal, Waliul Haq Haqdost, Olivia Gayraud, Sophia Cheréstal, Lee Wallis, Pola Valles
OBJECTIVE: The South African Triage Scale (SATS) has demonstrated good validity in the EDs of Médecins Sans Frontières (MSF)-supported sites in Afghanistan and Haiti; however, corresponding reliability in these settings has not yet been reported on. This study set out to assess the inter-rater and intrarater reliability of the SATS in four MSF-supported EDs in Afghanistan and Haiti (two trauma-only EDs and two mixed (including both medical and trauma cases) EDs). METHODS: Under classroom conditions between December 2013 and February 2014, ED nurses at each site assigned triage ratings to a set of context-specific vignettes (written case reports of ED patients)...
March 16, 2018: Emergency Medicine Journal: EMJ
Song Cheng, Libo Zhang, Aiyuan Ma, Hongying Xia, Jinhui Peng, Chunyang Li, Jianhua Shu
The methylene blue (MB) removal abilities of raw activated carbon and iron/cerium modified raw activated carbon (Fe-Ce-AC) by adsorption were researched and compared. The characteristics of Fe-Ce-AC were examined by N2 adsorption, zeta potential measurement, FTIR, Raman, XRD, XPS, SEM and EDS. After modification, the following phenomena occurred: The BET surface area, average pore diameter and total pore volume decreased; the degree of graphitization also decreased. Moreover, the presence of Fe3 O4 led to Fe-Ce-AC having magnetic properties, which makes it easy to separate from dye wastewater in an external magnetic field and subsequently recycle...
March 2018: Journal of Environmental Sciences (China)
Yan Wu, Yun Kang, Liqiu Zhang, Dan Qu, Xiang Cheng, Li Feng
In this study, direct contact membrane distillation (DCMD) was used for treating fermentation wastewater with high organic concentrations. DCMD performance characteristics including permeate flux, permeate water quality as well as membrane fouling were investigated systematically. Experimental results showed that, after 12hr DCMD, the feed wastewater was concentrated by about a factor of 3.7 on a volumetric basis, with the permeate flux decreasing from the initial 8.7L/m2 /hr to the final 4.3L/m2 /hr due to membrane fouling; the protein concentration in the feed wastewater was increased by about 3...
March 2018: Journal of Environmental Sciences (China)
Pedro Ruymán Brito-Brito, Esther García-Tesouro, Domingo Ángel Fernández-Gutiérrez, Alfonso Miguel García-Hernández, Raquel Fernández-Gutiérrez, Guillermo Burillo-Putze
OBJECTIVES: To validate a Spanish adaptation of the Mishel Uncertainty of Illness Scale for use with emergency-department (ED) patients and their accompanying relatives or friends (the UIS-ED). MATERIAL AND METHODS: We first developed a version of the questionnaire for Spanish ED situations. Next we assessed the content validity index for each of its items, revised it, and reassessed its face validity to produce a second version, which we then piloted in 20 hospital ED patients...
2018: Emergencias: Revista de la Sociedad Española de Medicina de Emergencias
Damien Arrigan
No abstract text is available yet for this article.
March 15, 2018: Analytical and Bioanalytical Chemistry
James L Januzzi, Annabel A Chen-Tournoux, Robert H Christenson, Gheorghe Doros, Judd E Hollander, Phillip D Levy, John T Nagurney, Richard M Nowak, Peter S Pang, Darshita Patel, W Franklin Peacock, E Joy Rivers, Elizabeth L Walters, Hanna K Gaggin
BACKGROUND: Contemporary reconsideration of diagnostic N-terminal pro-B-type natriuretic peptide (NT-proBNP) cutoffs for diagnosis of heart failure (HF) is needed. OBJECTIVES: This study sought to evaluate the diagnostic performance of NT-proBNP for acute HF in patients with dyspnea in the emergency department (ED) setting. METHODS: Dyspneic patients presenting to 19 EDs in North America were enrolled and had blood drawn for subsequent NT-proBNP measurement...
March 20, 2018: Journal of the American College of Cardiology
Sophia Y Wang, Mariam S Hamid, David C Musch, Maria A Woodward
Importance: Nearly 2 million patients visit emergency departments (EDs) because of eye concerns annually in the United States. How hospitals currently assign these patients to treatment is important for designing systems that equitably allocate resources for eye care in urgent settings. Objective: To investigate factors associated with ophthalmology consultation for eye-related adult ED encounters to assess possible disparities by sex, race/ethnicity, language preference, or residential distance from the medical center...
March 15, 2018: JAMA Ophthalmology
Respati W Ranakusuma, Yupitri Pitoyo, Eka D Safitri, Sarah Thorning, Elaine M Beller, Sudigdo Sastroasmoro, Chris B Del Mar
BACKGROUND: Acute otitis media (AOM) is a common acute infection in children. Pain is its most prominent and distressing symptom. Antibiotics are commonly prescribed for AOM, although they have only a modest effect in reducing pain at two to three days. There is insufficient evidence for benefits of other treatment options, including systemic corticosteroids. However, systemic corticosteroids are potent anti-inflammatory drugs, and so theoretically could be effective, either alone or as an addition to antibiotics...
March 15, 2018: Cochrane Database of Systematic Reviews
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