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https://www.readbyqxmd.com/read/28087535/efficient-low-ph-iron-removal-by-a-microbial-iron-oxide-mound-ecosystem-at-scalp-level-run
#1
Christen L Grettenberger, Alexandra R Pearce, Kyle J Bibby, Daniel S Jones, William D Burgos, Jennifer L Macalady
: Acid mine drainage (AMD) is a major environmental problem affecting tens of thousands of km of waterways worldwide. Passive bioremediation of AMD relies on microbial communities to oxidize and remove iron from the system; however, iron-oxidation rates in AMD environments are highly variable across sites. At Scalp Level Run (Cambria County PA), first-order iron-oxidation rates are ten times faster than at other coal associated iron mounds in the Appalachians. We examined the bacterial community at Scalp Level Run to determine whether a unique community is responsible for the rapid iron oxidation rate...
January 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28080022/single-wall-carbon-nanotubes-doping-in-lead-acid-batteries-a-new-horizon
#2
Anjan Banerjee, Baruch Ziv, Yuliya Shilina, Elena Levi, Shalom Luski, Doron Aurbach
The addition of single-wall carbon nanotubes (SWCNT) to lead-acid battery electrodes is the most efficient suppresser of uncontrolled sulfation processes. Due to the cost of SWCNT, we studied the optimization loading of SWCNT in lead-acid batteries electrodes. We optimized the SWCNT loading concentrations in both the positive and negative plates, separately. Loadings of 0.01% and 0.001% in the positive and negative active masses were studied, respectively. Two volts of lead-acid laboratory cells with sulfuric acid, containing silica gel-type electrolytes, were cycled in a 25% and 50% depth-of-discharge (DOD) cycling with a charging rate of C and 2C, respectively, and discharge rates of C/2 and C, respectively...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28079591/point-of-care-diagnostics-extending-the-laboratory-network-to-reach-the-last-mile
#3
Paul K Drain, Christine Rousseau
PURPOSE OF REVIEW: More point-of-care (POC) diagnostic tests are becoming available for HIV diagnosis and treatment in resource-limited settings. These novel technologies have the potential to foster decentralized HIV care and treatment for the benefit of clinical laboratories, HIV clinics, and HIV-infected patients. There continue to be many business, technological, and operational challenges that limit product development and regulatory approval, which limits products available for the required operational and cost-effectiveness studies and delays policy adoption and implementation...
January 11, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/28078809/three-year-analysis-of-repeated-laboratory-tests-for-the-markers-total-cholesterol-ferritin-vitamin-d-vitamin-b12-and-folate-in-a-large-research-and-teaching-hospital-in-italy
#4
Monica Lanzoni, Marco Fornili, Irene Felicetta, Rita Maiavacca, Elia Biganzoli, Silvana Castaldi
RATIONALE, AIMS AND OBJECTIVES: The increasing number of diagnostic tests requests all over the world is a problem that can partially be explained by inappropriate testing. Impact on the total costs of health systems becomes relevant when tests are performed in a large amount. In this paper, retesting of total cholesterol, ferritin, vitamin B12 , vitamin D, and folate is assessed. METHODS: The Quality Unit of Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano (Fondazione) decided to perform a first assessment of the appropriate use of the laboratory tests cholesterol, ferritin, vitamin B12 , vitamin D, and folate focusing on the retesting interval for the same patient in the time period January 1, 2012, to December 31, 2014, in every care setting...
January 12, 2017: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/28077562/sensitive-and-inexpensive-digital-dna-analysis-by-microfluidic-enrichment-of-rolling-circle-amplified-single-molecules
#5
Malte Kühnemund, Iván Hernández-Neuta, Mohd Istiaq Sharif, Matteo Cornaglia, Martin A M Gijs, Mats Nilsson
Single molecule quantification assays provide the ultimate sensitivity and precision for molecular analysis. However, most digital analysis techniques, i.e. droplet PCR, require sophisticated and expensive instrumentation for molecule compartmentalization, amplification and analysis. Rolling circle amplification (RCA) provides a simpler means for digital analysis. Nevertheless, the sensitivity of RCA assays has until now been limited by inefficient detection methods. We have developed a simple microfluidic strategy for enrichment of RCA products into a single field of view of a low magnification fluorescent sensor, enabling ultra-sensitive digital quantification of nucleic acids over a dynamic range from 1...
January 10, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28076488/use-of-tranexamic-acid-in-trauma-patients-an-analysis-of-cost-effectiveness-for-use-in-brazil
#6
Marcelo A Pinto, Jair G da Silva, Aljamir D Chedid, Marcio F Chedid
Introduction: Use of tranexamic acid (TXA) in trauma has been the subject of growing interest by researchers and health professionals. However, there are still several open questions regarding its use. In some aspects medical literature is controversial. The points of disagreement among experts include questions such as: Which patients should receive TXA in trauma? Should treatment be performed in the pre-hospital environment? Is there any need for laboratory parameters before starting TXA treatment? What is the drug safety profile? The main issue on which there is still no basis in literature is: What is the indication for treatment within massive transfusion protocols? Objective: Answer the questions proposed based on critical evaluation of the evidence gathered so far and carry out a study of cost-effectiveness of TXA use in trauma adapted to the Brazilian reality...
November 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/28075425/management-of-fibromyalgia-practical-guides-from-recent-evidence-based-guidelines
#7
Winfried Häuser, Jacob Ablin, Serge Perrot, Mary-Ann Fitzcharles
Fibromyalgia (FM) is a prevalent and costly condition worldwide, affecting approximately 2% of the general population. Recent evidence- and consensus-based guidelines from Canada, Germany, Israel and the European League Against Rheumatism aim to support physicians in achieving a comprehensive diagnostic work-up of patients with chronic widespread pain (CWP) and to assist patients and physicians in shared decision making on treament options. Every patient with CWP requires at the first medical evaluation a complete history, medical examination and some laboratory tests (complete blood count, C-reactive protein, serum calcium, creatine phosphokinase, thyroid stimulating hormone, 25-OH vitamin D) to screen for metabolic or inflammatory causes of CWP...
January 4, 2017: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/28073572/routine-preoperative-laboratory-testing-in-elective-pediatric-cardiothoracic-surgery-is-largely-unnecessary
#8
R Michael Nieto, Luis E De León, Daniel Trujillo Diaz, Kimberly A Krauklis, Charles D Fraser
OBJECTIVE: Routine preoperative laboratory testing (RLT) is common practice in pediatric cardiothoracic surgery and is associated with significant cost burden to patients and families. We sought to examine the value of RLT in patients undergoing elective pediatric cardiothoracic surgery. METHODS: We conducted a retrospective study of all scheduled elective pediatric cardiothoracic surgery at our institution from 2012 to 2014. Inpatients were excluded. Patient charts were reviewed to obtain preoperative laboratory values and determine relationship to case cancellation...
November 16, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28071640/innovation-in-chemotherapy-administration-process
#9
A Aziz
INTRODUCTION: This project was started after patient's complaints of increased cost burden on patients with increase stay of patient in hospital for chemotherapy administration for 3-4 days, how to decrease this hospital stay and financial burden and how can we improve services to decrease hospital stay and expedite the process of chemotherapy administration. METHODS: A total of 100 patients' confidential files reviewed from February 12, 2013 to May 15, 2013, patients, who were admitted for chemotherapy administration only in inpatient area and all services timings, were reviewed and documented on sheet named as delays chemotherapy sheet, nine processes timings checked against their benchmarks...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28069196/research-on-ultrasonic-excitation-for-the-removal-of-drilling-fluid-plug-paraffin-deposition-plug-polymer-plug-and-inorganic-scale-plug-for-near-well-ultrasonic-processing-technology
#10
Zhenjun Wang, Jing Zeng, Hao Song, Feng Li
Near-well ultrasonic processing technology attracts more attention due to its simple operation, high adaptability, low cost and no pollution to the formation. Although this technology has been investigated in detail through laboratory experiments and field tests, systematic and intensive researches are absent for certain major aspects, such as whether ultrasonic excitation is better than chemical agent for any plugs removal; whether ultrasound-chemical combination plug removal technology has the best plugs removal effect...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28068279/identifying-predictors-of-central-sleep-apnea-cheyne-stokes-breathing-in-chronic-heart-failure-a-pathophysiological-approach
#11
Aneliya I Draganova, Kiril V Terziyski, Stefan S Kostianev
Chronic heart failure (CHF) is a major health problem associated with increased mortality, despite modern treatment options. Central sleep apnea (CSA)/Cheyne-Stokes breathing (CSB) is a common and yet largely under-diagnosed co-morbidity, adding significantly to the poor prognosis in CHF because of a number of acute and chronic effects, including intermittent hypoxia, sympathetic overactivation, disturbed sleep architecture and impaired physical tolerance. It is characterized by repetitive periods of crescendo-decrescendo ventilatory pattern, alternating with central apneas and hypopneas...
December 1, 2016: Folia Medica
https://www.readbyqxmd.com/read/28068213/utilization-of-size-polymorphism-in-its1-and-its2-regions-for-identification-of-pathogenic-yeast-species
#12
Hossein Khodadadi, Ladan Karimi, Niloufar Jalali-Zand, Hassan Adin, Hossein Mirhendi
Despite the existence of a variety of available yeast identification strategies, easier and more cost-effective methods are required for routine use in clinical laboratories. The internal transcribed spacer (ITS) regions of fungal rRNA genes exhibit variable sizes depending on the yeast species. In the present study, fragment size polymorphism (FSP) analysis of the ITS1 and ITS2 regions for identification of the clinically most important yeast species was assessed. The ITS1 and ITS2 regions of 190 strains, including isolates of 31 standard strains and 159 clinical isolates, were separately PCR-amplified with two primer sets: ITS1-ITS2 and ITS3-ITS4...
January 9, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28065921/plant-carnivory-beyond-bogs-reliance-on-prey-feeding-in-drosophyllum-lusitanicum-drosophyllaceae-in-dry-mediterranean-heathland-habitats
#13
M Paniw, E Gil-Cabeza, F Ojeda
BACKGROUND AND AIMS: In a cost-benefit framework, plant carnivory is hypothesized to be an adaptation to nutrient-poor soils in sunny, wetland habitats. However, apparent exceptions to this cost-benefit model exist, although they have been rarely studied. One of these exceptions is the carnivorous subshrub Drosophyllum lusitanicum, which thrives in Mediterranean heathlands on dry sandstone soils and has relatively well-developed, xeromorphic roots. Here, the roles of leaf (carnivory) and root (soil) nutrient uptake in growth promotion of this particular species were assessed...
January 8, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28063462/going-digital-a-narrative-overview-of-the-clinical-and-organisational-impacts-of-ehealth-technologies-in-hospital-practice
#14
Justin Keasberry, Ian A Scott, Clair Sullivan, Andrew Staib, Richard Ashby
Objective The aim of the present study was to determine the effects of hospital-based eHealth technologies on quality, safety and efficiency of care and clinical outcomes.Methods Systematic reviews and reviews of systematic reviews of eHealth technologies published in PubMed/Medline/Cochrane Library between January 2010 and October 2015 were evaluated. Reviews of implementation issues, non-hospital settings or remote care or patient-focused technologies were excluded from analysis. Methodological quality was assessed using a validated appraisal tool...
January 9, 2017: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/28063157/a-new-method-of-genotyping-mdx-4cv-mice-by-pcr-rflp-analysis
#15
Elisia D Tichy, Foteini Mourkioti
INTRODUCTION: The mdx(4cv) mouse is a common model to study Duchenne muscular dystrophy (DMD). The most utilized methodology to identify the genotype of these mice is Sanger DNA sequencing. METHODS: Here, we provide a simple, cost-effective alternative approach to identify the wildtype, heterozygous, or homozygous/hemizygous genotypes of these mice, using commonly available laboratory equipment and reagents. RESULTS: Our technique exploits a restriction fragment length polymorphism (RFLP) that is generated by the point mutation found in exon 53 of mdx(4cv) mice...
January 7, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28062619/beyond-natriuretic-peptides-for-diagnosis-and-management-of-heart-failure
#16
REVIEW
Nasrien E Ibrahim, James L Januzzi
BACKGROUND: Heart failure (HF) is a complex syndrome with an enormous societal burden in terms of cost and morbidity and mortality. Natriuretic peptide (NP) testing is now widely used to support diagnosis, prognostication, and management of patients with HF, but NPs come with limitations, including vulnerability to the presence of obesity, atrial fibrillation, and renal dysfunction, for example. Beyond the NPs, novel biomarkers may supplement traditional clinical and laboratory testing to improve understanding of the complex disease process of HF, and possibly to personalize care for those affected through better individual phenotyping...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28062078/-coexistence-of-acute-appendicitis-and-dengue-fever-a-case-report
#17
Juan Fidel Osuna-Ramos, Carlos Silva-Gracia, Gerardo Joel Maya-Vacio, Alejandra Romero-Utrilla, Efrén Rafael Ríos-Burgueño, Jesús Salvador Velarde-Félix
BACKGROUND: Dengue is the most important human viral disease transmitted by mosquitoes. It can be asymptomatic or it can present in any of its 3clinical forms: Dengue fever, dengue haemorrhagic fever and dengue shock syndrome. However, some atypical manifestations have been reported in surgical emergencies caused by acute appendicitis in patients with dengue fever. CLINICAL CASE: We report the case of an 18-year-old Mexican male who presented to the emergency department of the General Hospital of Culiacan, Sinaloa, with symptoms of dengue fever, accompanied by crampy abdominal pain with positive Rovsing and Dunphy signs...
January 3, 2017: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/28062017/non-invasive-prenatal-testing-and-the-unveiling-of-an-impaired-translation-process
#18
Blake Murdoch, Vardit Ravitsky, Ubaka Ogbogu, Sarah Ali-Khan, Gabrielle Bertier, Stanislav Birko, Tania Bubela, Jeremy De Beer, Charles Dupras, Meika Ellis, Palmira Granados Moreno, Yann Joly, Kalina Kamenova, Zubin Master, Alessandro Marcon, Mike Paulden, François Rousseau, Timothy Caulfield
Non-invasive prenatal testing (NIPT) is an exciting technology with the potential to provide a variety of clinical benefits, including a reduction in miscarriages, via a decline in invasive testing. However, there is also concern that the economic and near-future clinical benefits of NIPT have been overstated and the potential limitations and harms underplayed. NIPT, therefore, presents an opportunity to explore the ways in which a range of social pressures and policies can influence the translation, implementation, and use of a health care innovation...
January 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28060883/an-automated-experimenter-free-method-for-the-standardised-operant-cognitive-testing-of-rats
#19
Marion Rivalan, Humaira Munawar, Anna Fuchs, York Winter
Animal models of human pathology are essential for biomedical research. However, a recurring issue in the use of animal models is the poor reproducibility of behavioural and physiological findings within and between laboratories. The most critical factor influencing this issue remains the experimenter themselves. One solution is the use of procedures devoid of human intervention. We present a novel approach to experimenter-free testing cognitive abilities in rats, by combining undisturbed group housing with automated, standardized and individual operant testing...
2017: PloS One
https://www.readbyqxmd.com/read/28060518/in-use-emissions-and-estimated-impacts-of-traditional-natural-and-forced-draft-cookstoves-in-rural-malawi
#20
Roshan Wathore, Kevin Mortimer, Andrew P Grieshop
Emissions from traditional cooking practices in low- and middle-income countries have detrimental health and climate effects; cleaner-burning cookstoves may provide "co-benefits". Here we assess this potential via in-home measurements of fuel-use and emissions and real-time optical properties of pollutants from traditional and alternative cookstoves in rural Malawi. Alternative cookstove models were distributed by existing initiatives and include a low-cost ceramic model, two forced-draft cookstoves (FDCS; Philips™ HD4012LS and ACE-1), and several institutional cookstoves...
January 6, 2017: Environmental Science & Technology
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