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https://www.readbyqxmd.com/read/28346925/microbiota-and-necrotizing-enterocolitis
#1
Sanjay Patole
Necrotizing enterocolitis (NEC) is an acquired gastrointestinal inflammatory condition with significant mortality and morbidity in preterm very low birth weight infants. The interplay between toll-like receptors, bacterial endotoxins, developmentally regulated excessive proinflammatory responses of the immature innate immune system, hypoxia, ischemia, reperfusion, free radicals, and the presence of substrates and bacterial endotoxins is thought to play an important role in the pathogenesis of NEC. The association (cause?) of various microbes (bacteria, viruses, and fungi) with NEC has intrigued researchers for many years...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346862/communication-about-dying-death-and-bereavement-a-systematic-review-of-children-s-literature
#2
Marina N F Arruda-Colli, Meaghann S Weaver, Lori Wiener
BACKGROUND: Children's books have the potential to facilitate communication about death for children living with a serious illness and for children coping with the death of a loved one. OBJECTIVES: This study examines the content of children's literature relevant to the topic of dying and death and identifies books providers can share with children and their families. DESIGN: A search of children's literature was conducted using four electronic databases and one additional search engine using the word "Death" or "Dying...
March 27, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28346708/high-resolution-isotopic-monitoring-of-cave-air-co2
#3
Paul Töchterle, Yuri Dublyansky, Nils Stöbener, Magda Mandić, Christoph Spötl
RATIONALE: CO2 is the main driver of many chemical processes in cave environments. Understanding CO2 fluxes in a given cave system through monitoring campaigns has become a standard procedure in a wide variety of fields such as paleoclimatology or show cave management. However, conventional methods lack the resolution of isotopic data to capture many transient processes occurring in caves. METHODS: A novel approach using isotope ratio infrared spectrometry (IRIS) to monitor cave air pCO2 , δ(13) C and δ(18) O values in situ was tested and compared with conventional monitoring methods (handheld pCO2 meter and discrete cave air samples for conventional isotope ratio mass spectrometry)...
March 27, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28346603/residency-program-directors-interview-methods-and-satisfaction-with-resident-selection-across-multiple-specialties
#4
Tonya VanOrder, Wayne Robbins, Eric Zemper
CONTEXT: Competition for postdoctoral training positions is at an all-time high, and residency program directors continue to have little direction when it comes to structuring an effective interview process. OBJECTIVES: To examine whether a relationship existed between interview methods used and program director satisfaction with resident selection decisions and whether programs that used methods designed to assess candidate personal characteristics were more satisfied with their decisions...
April 1, 2017: Journal of the American Osteopathic Association
https://www.readbyqxmd.com/read/28346366/automatic-camera-calibration-using-active-displays-of-a-virtual-pattern
#5
Lei Tan, Yaonan Wang, Hongshan Yu, Jiang Zhu
Camera calibration plays a critical role in 3D computer vision tasks. The most commonly used calibration method utilizes a planar checkerboard and can be done nearly fully automatically. However, it requires the user to move either the camera or the checkerboard during the capture step. This manual operation is time consuming and makes the calibration results unstable. In order to solve the above problems caused by manual operation, this paper presents a full-automatic camera calibration method using a virtual pattern instead of a physical one...
March 27, 2017: Sensors
https://www.readbyqxmd.com/read/28346335/apparent-interfacial-tension-effects-in-protein-stabilized-emulsions-prepared-with-microstructured-systems
#6
Carme Güell, Montserrat Ferrando, Alexandre Trentin, Karin Schroën
Proteins are mostly used to stabilize food emulsions; however, production of protein containing emulsions is notoriously difficult to capture in scaling relations due to the complex behavior of proteins in interfaces, in combination with the dynamic nature of the emulsification process. Here, we investigate premix membrane emulsification and use the Ohnesorge number to derive a scaling relation for emulsions prepared with whey protein, bovine serum albumin (BSA), and a standard emulsifier Tween 20, at various concentrations (0...
March 25, 2017: Membranes
https://www.readbyqxmd.com/read/28345960/graft-utilization-in-the-bridging-reconstruction-of-irreparable-rotator-cuff-tears-a-systematic-review
#7
Matthew R Lewington, Devin P Ferguson, T Duncan Smith, Robert Burks, Catherine Coady, Ivan Ho-Bun Wong
BACKGROUND: Rotator cuff tears are one of the most common conditions affecting the shoulder. Because of the difficulty in managing massive rotator cuff tears and the inability of standard techniques to prevent arthropathy, surgeons have developed several novel techniques to improve outcomes and ideally alter the natural history. PURPOSE: To systematically review the existing literature and analyze reported outcomes to evaluate the effectiveness of using a bridging graft reconstruction technique to treat large to massive irreparable rotator cuff tears...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28345910/pycgtool-automated-generation-of-coarse-grained-molecular-dynamics-models-from-atomistic-trajectories
#8
James A Graham, Jonathan W Essex, Syma Khalid
Development of coarse-grained (CG) molecular dynamics models is often a laborious process which commonly relies upon approximations to similar models, rather than systematic parametrisation. PyCGTOOL automates much of the construction of CG models via calculation of both equilibrium values and force constants of internal coordinates directly from atomistic molecular dynamics simulation trajectories. The derivation of bespoke parameters from atomistic simulations improves the quality of the CG model compared to the use of generic parameters derived from other molecules, while automation greatly reduces the time required...
March 27, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28345746/an-analysis-of-errors-discrepancies-and-variation-in-opioid-prescriptions-for-adult-outpatients-at-a-teaching-hospital
#9
Mark C Bicket, Deepa Kattail, Myron Yaster, Christopher L Wu, Peter Pronovost
OBJECTIVE: To determine opioid-prescribing patterns and rate of three types of errors, discrepancies, and variation from ideal practice. DESIGN: Retrospective review of opioid prescriptions processed at an outpatient pharmacy. SETTING: Tertiary institutional medical center. PATIENTS: We examined 510 consecutive opioid medication prescriptions for adult patients processed at an institutional outpatient pharmacy in June 2016 for patient, provider, and prescription characteristics...
January 2017: Journal of Opioid Management
https://www.readbyqxmd.com/read/28345617/stimulation-of-adult-hippocampal-neurogenesis-by-physical-exercise-and-enriched-environment-is-disturbed-in-a-cadasil-mouse-model
#10
C Klein, S Schreyer, F E Kohrs, P Elhamoury, A Pfeffer, T Munder, B Steiner
In the course of CADASIL (Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy), a dysregulated adult hippocampal neurogenesis has been suggested as a potential mechanism for early cognitive decline. Previous work has shown that mice overexpressing wild type Notch3 and mice overexpressing Notch3 with a CADASIL mutation display impaired cell proliferation and survival of newly born hippocampal neurons prior to vascular abnormalities. Here, we aimed to elucidate how the long-term survival of these newly generated neurons is regulated by Notch3...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345599/location-location-size-defects-close-to-surfaces-dominate-fatigue-crack-initiation
#11
Itziar Serrano-Munoz, Jean-Yves Buffiere, Rajmund Mokso, Catherine Verdu, Yves Nadot
Metallic cast components inevitably contain defects such as shrinkage cavities which are inherent to the solidification process. Those defects are known to significantly alter the fatigue life of components. Yet very little is known, quantitatively, on the dangerosity of internal casting defects compared to surface ones. In this study, fatigue specimens containing controlled internal defects (shrinkage pores) are used to foster internal cracking. In situ fatigue tests monitored by X ray synchrotron tomography revealed that the internal nucleation and propagation of cracks was systematically overran by surface cracking initiated at castings defects up to ten times smaller than the internal ones...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345565/upgradation-and-modernization-of-eye-banking-services-integrating-tradition-with-innovative-policies-and-current-best-practices
#12
Radhika Tandon, Archita Singh, Noopur Gupta, M Vanathi, Vivek Gupta
PURPOSE: The purpose of this study is to review the history and evolution of the National Eye Bank (NEB) and analyze the impact over the years and report the outcome of the invested resources. METHODS: Review of archival material, records, project reports, policy and procedures' manuals, and publications was done. Descriptive and analytical processing of data obtained was undertaken. Parameters evaluated included total collection, transplantation, utilization rates of donor cornea, changing trends over time in terms of numbers and duration of recipients waiting, impactful research translated into changes in standard operating protocols, new facilities, and subsequent effects on numbers or quality assurance measures and overview of major achievements...
February 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28345534/electron-transfer-processes-occurring-on-platinum-neural-stimulating-electrodes-calculated-charge-storage-capacities-are-inaccessible-during-applied-stimulation
#13
Eric M Hudak, Doe Kumsa, Heidi Martin, J Mortimer
<i>Objective.</i> Neural prostheses employing platinum electrodes are often constrained by a charge/charge-density parameter known as the Shannon limit. In examining the relationship between charge injection and observed tissue damage, the electrochemistry at the electrode-tissue interface should be considered. The charge-storage capacity (CSC) is often used as a predictor of how much charge an electrode can inject during stimulation, but calculating charge from a steady-state i-E curve (cyclic voltammogram) over the water window misrepresents how electrodes operate during stimulation...
March 27, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28345452/l-glutamine-supplementation-promotes-an-improved-energetic-balance-in-walker-256-tumor-bearing-rats
#14
Heber Amilcar Martins, Roberto Barbosa Bazotte, Geraldo Emilio Vicentini, Mariana Machado Lima, Flavia Alessandra Guarnier, Catchia Hermes-Uliana, Flavia Cristina Vieira Frez, Gleison Daion Piovezana Bossolani, Luciane Fracaro, Larissa Dos Santos Fávaro, Mariana Inocêncio Manzano, Jacqueline Nelisis Zanoni
We evaluated the effects of supplementation with oral l-glutamine in Walker-256 tumor-bearing rats. A total of 32 male Wistar rats aged 54 days were randomly divided into four groups: rats without Walker-256 tumor, that is, control rats (C group); control rats supplemented with l-glutamine (CG group); Walker-256 tumor rats without l-glutamine supplementation (WT group); and WT rats supplemented with l-glutamine (WTG group). l-Glutamine was incorporated into standard food at a proportion of 2 g/100 g (2%). After 10 days of the experimental period, the jejunum and duodenum were removed and processed...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28345350/boron-enhanced-growth-of-micron-length-carbon-based-nanowalls-a-route-towards-high-rates-electrochemical-biosensing
#15
Katarzyna Siuzdak, Mateusz Ficek, Michal Sobaszek, Jacek Ryl, Marcin Gnyba, Paweł Niedziałkowski, Natalia Malinowska, Jakub Karczewski, Robert Bogdanowicz
In this study we have demonstrated the fabrication of novel material called boron-doped carbon nanowalls (B:CNW) which is characterized by remarkable electrochemical properties like high standard rate constant k°, low peak to peak separation value (ΔE) for oxidation and reduction processes of [Fe(CN)6]3-/4- redox system and low surface resistivity. The B:CNW samples were deposited by the microwave plasma assisted chemical vapor deposition (CVD) using a gas mixture of H2:CH4:B2H6 and N2. Growth results in sharp edge, flat and long carbon nanowalls rich in sp2 as well as sp3 hybridized phases...
March 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28345075/ultrasonographic-detection-of-airway-obstruction-in-a-model-of-obstructive-sleep-apnea
#16
Amal Isaiah, Reuben Mezrich, Jeffrey Wolf
Purpose Obstructive sleep apnea (OSA) is a common clinical disorder characterized by repetitive airway obstruction during sleep. The gold standard for diagnosis of OSA, polysomnogram (PSG), cannot anatomically localize obstruction. Precise identification of obstruction has potential to improve outcomes following surgery. Current diagnostic modalities that provide this information require anesthesia, involve ionizing radiation or disrupt sleep. To mitigate these problems, we conceived that ultrasound (US) technology may be adapted (i) to detect, quantify and localize airway obstruction and (ii) for translational application to home-based testing for OSA...
February 2017: Ultrasound International Open
https://www.readbyqxmd.com/read/28344786/united-european-gastroenterology-evidence-based-guidelines-for-the-diagnosis-and-therapy-of-chronic-pancreatitis-hapaneu
#17
REVIEW
J Matthias Löhr, Enrique Dominguez-Munoz, Jonas Rosendahl, Marc Besselink, Julia Mayerle, Markus M Lerch, Stephan Haas, Fatih Akisik, Nikolaos Kartalis, Julio Iglesias-Garcia, Jutta Keller, Marja Boermeester, Jens Werner, Jean-Marc Dumonceau, Paul Fockens, Asbjorn Drewes, Gürlap Ceyhan, Björn Lindkvist, Joost Drenth, Nils Ewald, Philip Hardt, Enrique de Madaria, Heiko Witt, Alexander Schneider, Riccardo Manfredi, Frøkjer J Brøndum, Sasa Rudolf, Thomas Bollen, Marco Bruno
BACKGROUND: There have been substantial improvements in the management of chronic pancreatitis, leading to the publication of several national guidelines during recent years. In collaboration with United European Gastroenterology, the working group on 'Harmonizing diagnosis and treatment of chronic pancreatitis across Europe' (HaPanEU) developed these European guidelines using an evidence-based approach. METHODS: Twelve multidisciplinary review groups performed systematic literature reviews to answer 101 predefined clinical questions...
March 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28344774/the-dockstore-enabling-modular-community-focused-sharing-of-docker-based-genomics-tools-and-workflows
#18
Brian D O'Connor, Denis Yuen, Vincent Chung, Andrew G Duncan, Xiang Kun Liu, Janice Patricia, Benedict Paten, Lincoln Stein, Vincent Ferretti
As genomic datasets continue to grow, the feasibility of downloading data to a local organization and running analysis on a traditional compute environment is becoming increasingly problematic. Current large-scale projects, such as the ICGC PanCancer Analysis of Whole Genomes (PCAWG), the Data Platform for the U.S. Precision Medicine Initiative, and the NIH Big Data to Knowledge Center for Translational Genomics, are using cloud-based infrastructure to both host and perform analysis across large data sets. In PCAWG, over 5,800 whole human genomes were aligned and variant called across 14 cloud and HPC environments; the processed data was then made available on the cloud for further analysis and sharing...
2017: F1000Research
https://www.readbyqxmd.com/read/28344744/automation-of-pacbio-smrtbell-ngs-library-preparation-for-bacterial-genome-sequencing
#19
Nguyet Kong, Whitney Ng, Kao Thao, Regina Agulto, Allison Weis, Kristi Spittle Kim, Jonas Korlach, Luke Hickey, Lenore Kelly, Stephen Lappin, Bart C Weimer
BACKGROUND: The PacBio RS II provides for single molecule, real-time DNA technology to sequence genomes and detect DNA modifications. The starting point for high-quality sequence production is high molecular weight genomic DNA. To automate the library preparation process, there must be high-throughput methods in place to assess the genomic DNA, to ensure the size and amounts of the sheared DNA fragments and final library. FINDINGS: The library construction automation was accomplished using the Agilent NGS workstation with Bravo accessories for heating, shaking, cooling, and magnetic bead manipulations for template purification...
2017: Standards in Genomic Sciences
https://www.readbyqxmd.com/read/28344703/key-challenges-for-implementing-a-canadian-based-objective-structured-clinical-examination-osce-in-a-middle-eastern-context
#20
Kyle John Wilby, Mohammad Diab
Globalization of medical education is occurring at a rapid pace and many regions of the world are adapting curricula, teaching methods, and assessment tools from established programs. In the Middle East, the use of Objective Structured Clinical Examinations (OSCEs) is rare. The College of Pharmacy at Qatar University recently partnered with the University of Toronto and the Supreme Council of Health in Qatar to adapt policies and procedures of a Canadian-based OSCE as an exit-from-degree assessment for pharmacy students in Qatar...
December 2016: Canadian Medical Education Journal
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