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S E Abd Elhafez, H A Hamad, A A Zaatout, G F Malash
In the last decades, Egypt has been suffering from the phenomenon of black cloud resulting from burning rice husk and increasing the demand for water leading to the water crisis. An alternative, low-value and surplus agricultural byproduct (rice husk, RH) has an enormous potential for the removal of Cu(II) ions from water. The present study focuses on the chance of the use of rice husk as a bio-adsorbent without any chemical treatment instead of burning it and soiling the environment. The elemental, structural, morphological, surface functional, thermal, and textural characteristics of RH are determined by XRF, XRD, SEM, FT-IR, TGA, and BET surface area, respectively, and contributed to the understanding of the adsorption mechanism of Cu(II) ions in aqueous solution...
October 25, 2016: Environmental Science and Pollution Research International
Mingming Kong, Yang Zhang, Qida Li, Runan Dong, Haijun Gao
The use of peroxidase in the nitration of phenols is gaining interest as compared to traditional chemical reactions. We investigated the kinetic characteristics of phenol nitration catalyzed by horseradish peroxidase (HRP) in an aqueous-organic biphasic system using n-butanol as the organic solvent and NO₂⁻ and H₂O₂ as substrates. The reaction rate was mainly controlled by the reaction kinetics in the aqueous phase when appropriate agitation was used to enhance mass transfer in the biphasic system. The initial velocity of the reaction increased with increasing HRP concentration...
October 25, 2016: Journal of Microbiology and Biotechnology
Min-Ju Seo, Woo-Ri Kang, Kyung-Chul Shin, Deok-Kun Oh
The reaction conditions for the production of 7S,8S-dihydroxy-9,12(Z,Z)-octadecadienoic acid from linoleic acid by recombinant Escherichia coli expressing 7,8-linoleate diol synthase from Glomerella cingulata were optimized using response surface methodology. The optimal reaction conditions were pH 7.0, 18.6 °C, 10.8% (v/v) dimethyl sulfoxide, 44.9 g/L cells, and 14.3 g/L linoleic acid, with agitation at 256 rpm. Under these conditions, recombinant cells produced 7,8-dihydroxy unsaturated fatty acids in the range of 7...
October 25, 2016: Journal of Agricultural and Food Chemistry
Zhang Chao, Huang Gui Jin, Yu Cong
BACKGROUND: The incidence of early childhood caries shows a significant increasing trend. Often, children younger than 6 years need additional help to finish the dental treatment. Therefore, general anesthesia (GA) could help to provide a successful environment for pediatric dental treatment. OBJECTIVES: The aim of this study was to assess the effect of dental treatment under general anesthesia (DGA) on the patients' oral health in Chongqing, Southwest China using the P-CPQ and the FIS questionnaires...
October 25, 2016: Paediatric Anaesthesia
Ehteramolsadat Hosseini, Mehran Ghasemzadeh, Fatemeh Nassaji, Zeynab Pirmohammad Jamaat
Platelet storage is associated with deleterious changes leading to the loss of platelet reactivity and response. During storage, platelets experience increased expression and shedding of P-selectin and CD40L as specific markers of platelet activation, whereas GPIbα decreases due to ectodomain shedding. As an important adhesive receptor, GPVI contributes significantly to thrombus formation while its expression and shedding levels during storage of platelet products have not been well characterized yet. This study investigated the modulation of GPVI during platelet storage...
October 25, 2016: Platelets
Jim Junhui Huang, Gagarin Bunjamin, Edwin Sianguan Teo, Deric Boonhuat Ng, Yuan Kun Lee
BACKGROUND: The design of photobioreactor (PBR) for outdoor mass cultivation of microalgae determines the distribution of solar irradiance among cells in the culture, mode of agitation, mass transfer efficacy, and energy consumption, thus determines the productivity of the system and the cost of production. In this study, the concept of a floating photobioreactor with rotation function is proposed. Dunaliella tertiolecta, a model microalga, cultured in the attached vessels was evaluated...
2016: Biotechnology for Biofuels
Yingfang Ma, Wei Shen, Xianzhong Chen, Long Liu, Zhemin Zhou, Fei Xu, Haiquan Yang
BACKGROUND: Alkaline amylase has significant potential for applications in the textile, paper and detergent industries, however, low yield of which cannot meet the requirement of industrial application. In this work, a novel ARTP mutagenesis-screening method and fermentation optimization strategies were used to significantly improve the expression level of recombinant alkaline amylase in B. subtilis 168. RESULTS: The activity of alkaline amylase in mutant B. subtilis 168 mut-16# strain was 1...
2016: Journal of Biological Engineering
Elizabeth Galik, Barbara Resnick, Erin Vigne, Sarah Dee Holmes, Victoria Nalls
BACKGROUND: Resistiveness to care is behavior that prevents or interferes with caregivers' performing or assisting with activities of daily living and puts residents at risk for inappropriate use of antipsychotic drugs, other restraining interventions, social isolation, and physical abuse. The purpose of this study was to establish the psychometric properties of a previously developed Resistiveness to Care measure. PROCEDURES: This was a descriptive study using baseline data from an ongoing randomized controlled trial testing a Function and Behavior Focused Care (FBFC) intervention...
October 21, 2016: Journal of the American Medical Directors Association
Giorgio Cozzi, Sara Lega, Rita Giorgi, Egidio Barbi
We describe 2 patients with acute asthma exacerbation who were admitted to the emergency department (ED) with severe agitation and restlessness as a prominent finding, for which bedside asthma treatment sedation with intranasal dexmedetomidine was performed. In both cases, dexmedetomidine allowed the patients to rest and improved tolerance to treatment. Dexmedetomidine is a unique sedative with an excellent safety profile and minimal effect on respiratory function. These properties render it particularly promising for the management of severe agitation in children admitted to the ED with acute asthma exacerbation...
October 5, 2016: Annals of Emergency Medicine
Meltem Çobanoğulları Direk, Veli Yıldırım, Serkan Güneş, Gülçin Bozlu, Çetin Okuyaz
Serotonin syndrome (SS) is a potentially life-threatening condition associated with increased serotonergic activity in central nervous system and may occur during the use of serotonergic drugs. Although increasing frequency of serotonergic drug use in children, pediatricians, emergency medicine and pediatric intensive care specialists have not enough knowledge and experience about SS that is a potentially life-threatening condition. A 12-year-old girl patient was admitted to our emergency room with the history of involuntary contractions on her extremities and alteration of consciousness...
November 30, 2016: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
Jochen Meyburg, Mona-Lisa Dill, Chani Traube, Gabrielle Silver, Rebecca von Haken
OBJECTIVE: Intensive care delirium is a substantial problem in adults. Intensive care delirium is increasingly recognized in pediatrics in parallel with the development of specific scoring systems for children. However, little is known about the fluctuating course of intensive care delirium in children after surgery and possible implications on diagnostic and therapeutic strategies. DESIGN: Patients that needed treatment in the PICU following elective surgery were screened for intensive care delirium with the Cornell Assessment of Pediatric Delirium...
October 21, 2016: Pediatric Critical Care Medicine
Helen John Wilson, Kritis Dasgupta, Kathleen Michael
PURPOSE: The purpose of the study was to implement an Agitated Behavior Scale through an electronic health record and to evaluate the usability of the scale in a brain injury unit at a rehabilitation hospital. DESIGN: A quality improvement project was conducted in the brain injury unit at a large rehabilitation hospital with registered nurses as participants, using convenience sampling. METHODS: The project consisted of three phases and included education, implementation of the scale in the electronic health record, and administration of the survey questionnaire, which utilized the system usability scale...
October 24, 2016: Rehabilitation Nursing: the Official Journal of the Association of Rehabilitation Nurses
Helvécio C Menezes, Breno P Paulo, Maria José N Paiva, Zenilda L Cardeal
This paper describes a simple and quick method for sampling and also for carrying out the preconcentration of pesticides in environmental water matrices using two-phased hollow fiber liquid phase microextraction (HF-LPME). Factors such as extraction mode, time, solvents, agitation, and salt addition were investigated in order to validate the LPME method. The following conditions were selected: 6 cm of polypropylene hollow fiber, ethyl octanoate as an acceptor phase, and extraction during 30 min under stirring at 200 rpm...
2016: Journal of Analytical Methods in Chemistry
Stefanie Funke, Julia Matilainen, Heiko Nalenz, Karoline Bechtold-Peters, Hanns-Christian Mahler, Wolfgang Friess
A significant number of therapeutic proteins are marketed as pre-filled syringes or other drug/device combination products and have been safely used in these formats for years. Silicone oil, which is used as lubricant, can migrate into the drug product and may interact with therapeutic proteins. In this study, particles in the size range of 0.2-5 μm and ≥1 μm as determined by resonant mass measurement and micro-flow imaging/light obscuration, respectively, resulted from silicone sloughing off the container barrel after agitation...
October 20, 2016: Journal of Pharmaceutical Sciences
Mahboubeh Daryabor, Ali Ahmadi, Hamid Zilouei
This research was conducted to evaluate the potential of ultrasonic irradiation during the solvent extraction of metals, and comparing its efficiency with a mechanically stirred system (MSSX). The simultaneous extraction of zinc and cadmium from sulphate solutions was investigated by di-(2-ethylhexyl) phosphoric acid (D2EHPA) as an organic extractant which was diluted (20%) in kerosene at the organic: aqueous phase ratio of 1:1 and the temperature of 25°C. The influence of some critical parameters, including contact time, solution pH, ultrasonic power, and zinc/cadmium ratio were investigated on the extraction of the metals...
January 2017: Ultrasonics Sonochemistry
Ozlem Korkmaz Dilmen, Eren Fatma Akcil, Abdulvahap Oguz, Hayriye Vehid, Yusuf Tunali
Since awake craniotomy (AC) has become a standard of care for supratentorial tumour resection, especially in the motor and language cortex, determining the most appropriate anaesthetic protocol is very important. The aim of this retrospective study is to compare the effectiveness of conscious sedation (CS) to "awake-asleep-awake" (AAA) techniques for supratentorial tumour resection. Forty-two patients undergoing CS and 22 patients undergoing AAA were included in the study. The primary endpoint was to compare the CS and AAA techniques with respect to intraoperative pain and agitation in patients undergoing supratentorial tumour resection...
October 19, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Gabriel Lima-Oliveira, Dorothy M Adcock, Gian Luca Salvagno, Emmanuel J Favaloro, Giuseppe Lippi
OBJECTIVE: Thus study was aimed to investigate whether the mixing technique could influence the results of routine and specialized clotting tests on post-thawed specimens. METHODS: The sample population consisted of 13 healthy volunteers. Venous blood was collected by evacuated system into three 3.5mL tubes containing 0.109mmol/L buffered sodium citrate. The three blood tubes of each subject were pooled immediately after collection inside a Falcon 15mL tube, then mixed by 6 gentle end-over-end inversions, and centrifuged at 1500g for 15min...
October 18, 2016: Clinical Biochemistry
Richard J Hamilton, Vadim Keyfes, Sahil S Banka
BACKGROUND: Synthetic cannabinoids (SC) are recreational designer drugs intended to mimic delta-9-tetrahydrocannabinol while surreptitiously circumventing classification by the Drug Enforcement Administration. CASE REPORT: A 50-year-old black male arrived in the Emergency Department transported by Emergency Medical Services (EMS) for altered mental status after complaining of chest pain associated with smoking SCs. EMS found the patient with an empty foil pack labeled "Scooby Snax Limited Edition Blueberry Potpourri...
October 19, 2016: Journal of Emergency Medicine
Mariusz Ślachciński
The Flow Focusing Pneumatic Nebulizer (FFPN) working at low liquid flow rates was evaluated for the elemental analysis in slurried samples by argon-helium microwave induced plasma optical emission spectrometry (MIP-OES). The obtained results achieved were compared with commercially available V-groove Babington type nebulizer (VBPN). A univariate approach and the simplex optimization procedure were used to achieve optimized conditions and derive analytical figures of merit. Analytical performance of the micro nebulization system was characterized by a determination of the limits of detection (LODs), the precision (RSDs) and the wash-out times for Ba, Ca, Cd, Cu, Fe, Mg, Mn, Pb and Sr...
December 1, 2016: Talanta
Mehmet Ali Aslaner, Mustafa Boz, Ali Çelik, Asliddin Ahmedali, Sercan Eroğlu, Nalan Metin Aksu, Serkan Emre Eroğlu
OBJECTIVES: Altered mental status (AMS) is a challenging diagnosis in older patients and has a large range of etiologies. The aim of this study was to investigate the nature of such etiologies for physicians to be better aware of AMS backgrounds and hence improve outcomes and mortality rates. METHODS: This prospective observational study was conducted at 4 emergency departments. Patients 65 years and older who presented to the emergency department with acute AMS (≤1 week), with symptoms ranging from comas and combativeness, were eligible for inclusion in this study...
October 5, 2016: American Journal of Emergency Medicine
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