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https://www.readbyqxmd.com/read/28648295/detection-and-prevalence-of-protozoan-parasites-in-ready-to-eat-packaged-salads-on-sale-in-italy
#1
Tiziana Caradonna, Marianna Marangi, Federica Del Chierico, Nicola Ferrari, Sofia Reddel, Giorgia Bracaglia, Giovanni Normanno, Lorenza Putignani, Annunziata Giangaspero
To investigate the prevalence of protozoan contamination by Giardia duodenalis, Cryptosporidium spp., Toxoplasma gondii and Cyclospora cayetanensis, in 'ready to eat' (RTE) salads on sale in Italy, 648 packages were purchased from industrial and local brands. Nine individual packages from each brand were collected per month, pooled and subjected to microscopy and molecular analyses. Microscopic examination of 864 slides detected Cryptosporidium spp. but also Blastocystis hominis and Dientamoeba fragilis. Molecular tools identified G...
October 2017: Food Microbiology
https://www.readbyqxmd.com/read/28642456/predicting-conformational-ensembles-and-genome-wide-transcription-factor-binding-sites-from-dna-sequences
#2
Munazah Andrabi, Andrew Paul Hutchins, Diego Miranda-Saavedra, Hidetoshi Kono, Ruth Nussinov, Kenji Mizuguchi, Shandar Ahmad
DNA shape is emerging as an important determinant of transcription factor binding beyond just the DNA sequence. The only tool for large scale DNA shape estimates, DNAshape was derived from Monte-Carlo simulations and predicts four broad and static DNA shape features, Propeller twist, Helical twist, Minor groove width and Roll. The contributions of other shape features e.g. Shift, Slide and Opening cannot be evaluated using DNAshape. Here, we report a novel method DynaSeq, which predicts molecular dynamics-derived ensembles of a more exhaustive set of DNA shape features...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28635980/improving-self-efficacy-and-self-care-in-adult-patients-with-a-urinary-diversion-a-pilot-study
#3
Kyle Merandy, Meredith A Morgan, Richard Lee, Douglas S Scherr
PURPOSE/OBJECTIVES: To evaluate the feasibility and acceptability of a multimodality educational intervention for improving self-efficacy (SE) and self-care in patients with a new urinary diversion (UD).
. DESIGN: Two-arm randomized, controlled trial.
. SETTING: Academic medical center in New York.
. SAMPLE: 8 adults diagnosed with bladder cancer requiring UD.
. METHODS: A multimodality educational intervention consisting of video, Microsoft PowerPoint® slides, and medical illustrations was developed...
May 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28622581/assessment-of-atherosclerotic-luminal-narrowing-of-coronary-arteries-based-on-morphometrically-generated-visual-guides
#4
Rolf F Barth, David A Kellough, Patricia Allenby, Luke E Blower, Scott H Hammond, Greg M Allenby, L Maximilian Buja
BACKGROUND AND AIMS: Determination of the degree of stenosis of atherosclerotic coronary arteries is an important part of postmortem examination of the heart, but, unfortunately, estimation of the degree of luminal narrowing can be imprecise and tends to be approximations. Visual guides can be useful to assess this, but earlier attempts to develop such guides did not employ digital technology. Using this approach, we have developed two computer-generated morphometric guides to estimate the degree of luminal narrowing of atherosclerotic coronary arteries...
May 30, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28594167/toward-an-expanded-genome-structural-and-computational-characterization-of-an-artificially-expanded-genetic-information-system
#5
Nigel G J Richards, Millie M Georgiadis
Although the fundamental properties of DNA as first proposed by Watson and Crick in 1953 provided a basic understanding of how duplex DNA was organized and might be replicated, it was not until the first crystal structures of DNA (Z-DNA in 1979, B-DNA in 1980, and A-DNA in 1982) that the true complexity of the molecule began to be appreciated. Many crystal structures of oligonucleotides have since shed light on the helical forms that "Watson-Crick" DNA can adopt, their associated groove widths, and the properties of the nucleobase pairs and their interactions in all three helical forms...
June 8, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28589154/prolonged-ketosis-in-a-patient-with-euglycemic-diabetic-ketoacidosis-secondary-to-dapagliflozin
#6
Shreya Pujara, Adriana Ioachimescu
Since the approval of sodium-glucose cotransporter 2 (SGLT2) inhibitors by the US Food and Drug Administration for type 2 diabetes, there have been several reports of euglycemic diabetic ketoacidosis in patients using this class of medication. We present a case of euglycemic diabetic ketoacidosis where ketonemia and glucosuria persisted well beyond the expected effect of dapagliflozin. Our patient is a 50-year-old woman with type 2 diabetes since age 35 who was taking metformin and dapagliflozin. She presented with fatigue, constipation, and 3 days of reduced oral intake...
April 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28574343/exploring-context-with-deep-structured-models-for-semantic-segmentation
#7
Guosheng Lin, Chunhua Shen, Anton van den Hengel, Ian Reid
We propose an approach for exploiting contextual information in semantic image segmentation, and particularly investigate the use of patch-patch context and patch-background context in deep CNNs. We formulate deep structured models by combining CNNs and Conditional Random Fields (CRFs) for learning the patch-patch context between image regions. Specifically, we formulate CNN-based pairwise potential functions to capture semantic correlations between neighboring patches. Efficient piecewise training of the proposed deep structured model is then applied in order to avoid repeated expensive CRF inference during the course of back propagation...
May 26, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28573767/measuring-contact-area-in-a-sliding-human-finger-pad-contact
#8
X Liu, M J Carré, Q Zhang, Z Lu, S J Matcher, R Lewis
BACKGROUND/PURPOSE: The work outlined in this paper was aimed at achieving further understanding of skin frictional behaviour by investigating the contact area between human finger-pads and flat surfaces. METHODS: Both the static and the dynamic contact areas (in macro- and micro-scales) were measured using various techniques, including ink printing, optical coherence tomography (OCT) and Digital Image Correlation (DIC). RESULTS: In the studies of the static measurements using ink printing, the experimental results showed that the apparent and the real contact area increased with load following a piecewise linear correlation function for a finger-pad in contact with paper sheets...
June 1, 2017: Skin Research and Technology
https://www.readbyqxmd.com/read/28570560/qpcr-high-resolution-melt-analysis-for-drug-susceptibility-testing-of-mycobacterium-leprae-directly-from-clinical-specimens-of-leprosy-patients
#9
Sergio Araujo, Luiz Ricardo Goulart, Richard W Truman, Isabela Maria B Goulart, Varalakshmi Vissa, Wei Li, Masanori Matsuoka, Philip Suffys, Amanda B Fontes, Patricia S Rosa, David M Scollard, Diana L Williams
BACKGROUND: Real-Time PCR-High Resolution Melting (qPCR-HRM) analysis has been recently described for rapid drug susceptibility testing (DST) of Mycobacterium leprae. The purpose of the current study was to further evaluate the validity, reliability, and accuracy of this assay for M. leprae DST in clinical specimens. METHODOLOGY/PRINCIPAL FINDINGS: The specificity and sensitivity for determining the presence and susceptibility of M. leprae to dapsone based on the folP1 drug resistance determining region (DRDR), rifampin (rpoB DRDR) and ofloxacin (gyrA DRDR) was evaluated using 211 clinical specimens from leprosy patients, including 156 multibacillary (MB) and 55 paucibacillary (PB) cases...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28570557/classification-of-breast-cancer-histology-images-using-convolutional-neural-networks
#10
Teresa Araújo, Guilherme Aresta, Eduardo Castro, José Rouco, Paulo Aguiar, Catarina Eloy, António Polónia, Aurélio Campilho
Breast cancer is one of the main causes of cancer death worldwide. The diagnosis of biopsy tissue with hematoxylin and eosin stained images is non-trivial and specialists often disagree on the final diagnosis. Computer-aided Diagnosis systems contribute to reduce the cost and increase the efficiency of this process. Conventional classification approaches rely on feature extraction methods designed for a specific problem based on field-knowledge. To overcome the many difficulties of the feature-based approaches, deep learning methods are becoming important alternatives...
2017: PloS One
https://www.readbyqxmd.com/read/28570072/friction-between-van-der-waals-solids-during-lattice-directed-sliding
#11
Paul E Sheehan, Charles M Lieber
Nanometer-scale crystals of the two-dimensional oxide molybdenum trioxide (MoO3) were formed atop the transition metal dichalcogenides MoS2 and MoSe2. The MoO3 nanocrystals are partially commensurate with the dichalcogenide substrates, being aligned only along one of the substrate's crystallographic axes. These nanocrystals can be slid only along the aligned direction and maintain their alignment with the substrate during motion. Using an AFM probe to oscillate the nanocrystals, it was found that the lateral force required to move them increased linearly with nanocrystal area...
June 9, 2017: Nano Letters
https://www.readbyqxmd.com/read/28569662/sliding-scale-insulin-use-in-long-term-care-an-updated-perspective
#12
Joy Woods, Micki Nadelson
Diabetes affects approximately 26% of individuals oldeR THAN 65 years of age in the United States and up to 33% of patients in long-term care facilities. The most commonly prescribed insulin therapy for patients in long-term care is sliding-scale insulin (SSI): the use of finger-stick blood glucose testing to assess the need for insulin administration based on current blood glucose levels. SSI has been on the Beers Criteria of Potentially Inappropriate Medications since 2012. However, its sole use for long-term treatment is specifically not recommended by the American Diabetes Association and other stakeholders in diabetes management...
February 1, 2017: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
https://www.readbyqxmd.com/read/28555057/generalized-chirp-scaling-combined-with-baseband-azimuth-scaling-algorithm-for-large-bandwidth-sliding-spotlight-sar-imaging
#13
Tianzhu Yi, Zhihua He, Feng He, Zhen Dong, Mnaqing Wu
This paper presents an efficient and precise imaging algorithm for the large bandwidth sliding spotlight synthetic aperture radar (SAR). The existing sub-aperture processing method based on the baseband azimuth scaling (BAS) algorithm cannot cope with the high order phase coupling along the range and azimuth dimensions. This coupling problem causes defocusing along the range and azimuth dimensions. This paper proposes a generalized chirp scaling (GCS)-BAS processing algorithm, which is based on the GCS algorithm...
May 29, 2017: Sensors
https://www.readbyqxmd.com/read/28553208/childhood-trauma-and-functional-connectivity-between-amygdala-and-medial-prefrontal-cortex-a-dynamic-functional-connectivity-and-large-scale-network-perspective
#14
Josh M Cisler
Altered functional connectivity (FC) between the medial prefrontal cortex (mPFC) and amygdala is widely implicated as a neural mechanism explaining risk for psychopathology among those exposed to early life trauma. Nonetheless, contemporary neuroimaging research has shifted toward large-scale network models of brain function, and it is not clear how this common bi-nodal finding fits into larger-scale network models. Here, using dynamic functional connectivity (DFC) approaches combined with large-scale network analyses, the larger role of bi-nodal FC between mPFC and amygdala among a sample of adolescent girls is investigated...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28545579/evaluation-of-a-laboratory-quality-assurance-pilot-programme-for-malaria-diagnostics-in-low-transmission-areas-of-kenya-2013
#15
Elizabeth Wanja, Rachel Achilla, Peter Obare, Rose Adeny, Caroline Moseti, Victor Otieno, Collins Morang'a, Ephantus Murigi, John Nyamuni, Derek R Monthei, Bernhards Ogutu, Ann M Buff
BACKGROUND: One objective of the Kenya National Malaria Strategy 2009-2017 is scaling access to prompt diagnosis and effective treatment. In 2013, a quality assurance (QA) pilot was implemented to improve accuracy of malaria diagnostics at selected health facilities in low-transmission counties of Kenya. Trends in malaria diagnostic and QA indicator performance during the pilot are described. METHODS: From June to December 2013, 28 QA officers provided on-the-job training and mentoring for malaria microscopy, malaria rapid diagnostic tests and laboratory QA/quality control (QC) practices over four 1-day visits at 83 health facilities...
May 25, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28535133/impression-smear-agreement-with-acetate-tape-preparation-for-cytologic-sampling
#16
Elizabeth A Layne, Sonja Zabel
Cutaneous cytologic sampling techniques are used to detect bacteria, yeast, and inflammatory cells for diagnosis and therapeutic monitoring. Studies have examined slide evaluation techniques, ear swab cytology staining methods, and observer variations; few studies compare common clinical sampling techniques. The primary aim of this study was to measure detection of microorganisms and neutrophils by impression smear compared to acetate tape preparation; comparison of agreement between two acetate tape staining methods was a secondary aim...
May 23, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28527646/high-dose-amino-acid-administration-achieves-an-anabolic-response-in-type-2-diabetic-patients-that-is-independent-of-glycaemic-control-a-randomized-clinical-trial
#17
Chelsia Gillis, Patricia S Roque, Jürgen Bläss, Albert Urwyler, Harald Schepperle, Guido Kunz, Thomas Peters, Thomas Schricker, Linda Wykes, Andrea Kopp Lugli
BACKGROUND & AIMS: Surgical stress provokes protein catabolism and hyperglycaemia that is enhanced in patients with type 2 diabetes (T2DM), and increases perioperative morbidity. This study hypothesized that perioperative administration of high dose intravenous (IV) amino acids (AA) will augment protein balance in T2DM patients receiving tight plasma glucose control via continuous IV insulin compared to standard plasma glucose control via subcutaneous (SC) insulin sliding scale. METHODS: Eighteen patients with well-controlled T2DM (HbA1C% < 7...
May 3, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28508522/in-situ-observation-of-twin-boundary-sliding-in-single-crystalline-cu-nanowires
#18
Yonghai Yue, Qi Zhang, Xuejiao Zhang, Zhenyu Yang, Penggang Yin, Lin Guo
Using a homemade, novel, in situ transmission electron microscopy (TEM) double tilt tensile device, plastic behavior of single crystalline Cu nanowires of around 150 nm are studied. Deformation twins occur during the tests as predesigned before the experiments. In situ observation of twin boundary sliding (TBS) caused by full dislocation (extended dislocation) is first revealed at the atomic scale which is confirmed by molecular dynamics (MD) simulation results. Combined with twin boundary migration and multiple dislocations nucleated from surface, TBS causes a superlarge fracture strain which is over 166% and a severe necking which is over 93%, far beyond the typical values for most nanomaterials without twins...
May 16, 2017: Small
https://www.readbyqxmd.com/read/28504271/probing-nanofriction-and-aubry-type-signatures-in-a-finite-self-organized-system
#19
J Kiethe, R Nigmatullin, D Kalincev, T Schmirander, T E Mehlstäubler
Friction in ordered atomistic layers plays a central role in various nanoscale systems ranging from nanomachines to biological systems. It governs transport properties, wear and dissipation. Defects and incommensurate lattice constants markedly change these properties. Recently, experimental systems have become accessible to probe the dynamics of nanofriction. Here, we present a model system consisting of laser-cooled ions in which nanofriction and transport processes in self-organized systems with back action can be studied with atomic resolution...
May 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28501919/automated-cytological-detection-of-barrett-s-neoplasia-with-infrared-spectroscopy
#20
Oliver Old, Gavin Lloyd, Martin Isabelle, L Max Almond, Catherine Kendall, Karol Baxter, Neil Shepherd, Angela Shore, Nick Stone, Hugh Barr
BACKGROUND: Development of a nonendoscopic test for Barrett's esophagus would revolutionize population screening and surveillance for patients with Barrett's esophagus. Swallowed cell collection devices have recently been developed to obtain cytology brushings from the esophagus: automated detection of neoplasia in such samples would enable large-scale screening and surveillance. METHODS: Fourier transform infrared (FTIR) spectroscopy was used to develop an automated tool for detection of Barrett's esophagus and Barrett's neoplasia in esophageal cell samples...
May 13, 2017: Journal of Gastroenterology
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