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https://www.readbyqxmd.com/read/28545155/rapid-diagnostic-tests-for-typhoid-and-paratyphoid-enteric-fever
#1
REVIEW
Lalith Wijedoru, Sue Mallett, Christopher M Parry
BACKGROUND: Differentiating both typhoid (Salmonella Typhi) and paratyphoid (Salmonella Paratyphi A) infection from other causes of fever in endemic areas is a diagnostic challenge. Although commercial point-of-care rapid diagnostic tests (RDTs) for enteric fever are available as alternatives to the current reference standard test of blood or bone marrow culture, or to the widely used Widal Test, their diagnostic accuracy is unclear. If accurate, they could potentially replace blood culture as the World Health Organization (WHO)-recommended main diagnostic test for enteric fever...
May 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28544849/co-catalytic-effects-of-cos2-on-activity-of-mos2-catalyst-for-electrochemical-hydrogen-evolution
#2
Ranjith Bose, Zhenyu Jin, Seokhee Shin, Sungjoon Kim, Sun Young Lee, Yo-Sep Min
MoS2 is a promising material to replace Pt catalyst for electrochemical hydrogen evolution reaction (HER). It is well known that the activity of the MoS2 catalyst in the HER is significantly promoted by doping cobalt atoms. Recently, the Co-Mo-S phase, in which cobalt atoms decorate the edge positions of the MoS2 slabs, has been identified as a co-catalytic phase in the Co-doped MoS2 (Co-MoSx) with a low Co content. Here, we report the effect of the incorporation of cobalt atoms on the chemical state of Co-MoSx catalyst which gives rise to the co-catalytic effect...
May 25, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28544523/the-effect-of-allergen-immunotherapy-in-the-onset-of-new-sensitizations-a-meta-analysis
#3
REVIEW
Gabriele Di Lorenzo, Maria Stefania Leto-Barone, Simona La Piana, Antonella Plaia, Danilo Di Bona
BACKGROUND: Although the preventive efficacy of allergen immunotherapy (AIT) in the onset of new allergen sensitizations has been asserted by many reviews, position papers, and consensus conferences, the evidence available is from only 3 studies. The objective of this work was a systematic review to evaluate the preventive efficacy of AIT in the onset of new allergen sensitizations. The end-point was the risk difference (RD) in the onset of new allergen sensitizations between patients treated with AIT and pharmacotherapy...
May 23, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28544356/older-people-s-experiences-of-falling-and-perceived-risk-of-falls-in-the-community-a-narrative-synthesis-of-qualitative-research
#4
REVIEW
Siobhan Gardiner, Margaret Glogowska, Catherine Stoddart, Sarah Pendlebury, Daniel Lasserson, Debra Jackson
AIM: To examine qualitative research exploring older people's experiences of falling and the perceived risk of falling in the community. This will contribute new insights into how falling is perceived by the older community. BACKGROUND: Falls are a major problem for older people and healthcare services across the world. Accidental falls in the community are a persistent problem that is generally recognised as an intrinsic risk of ageing. This review provides a new synthesis of evidence that considers older people's perception of falls in the community as new insights are needed if the increasing problems of falls are to be addressed...
May 22, 2017: International Journal of Older People Nursing
https://www.readbyqxmd.com/read/28543660/challenges-working-with-presidential-bioethics-commissions
#5
Ruth Macklin
Presidential commissions come and go by design, and it is reasonable to wonder about the impact of their recommendations. I have been involved in the work of two presidential commissions: as a member of the Advisory Committee on Human Radiation Experiments (from 1994 to 1995) and as senior consultant to the National Bioethics Advisory Commission (from 1999 to 2000) for its report on multinational research. I continue to reflect on and look for the impact of both these commissions. ACHRE's charter included the review of experiments with ionizing radiation sponsored or conducted by the United States government since the 1940s...
May 2017: Hastings Center Report
https://www.readbyqxmd.com/read/28543627/dental-insurance-service-use-and-health-outcomes-in-australia-a-systematic-review
#6
REVIEW
Emmanuel Gnanamanickam, Dana Teusner, Peter Arrow, David S Brennan
Private Health Insurance plays a key role in financing dental care in Australia. Having private dental insurance has been associated with higher levels of access to dental care, visiting for a check-up, and receiving a favourable pattern of services. Associations with better oral health have also been reported. In the absence of any existing review, this paper aims to systematically review the relationship between dental insurance and dental service use and, or oral health outcomes in Australia. A systematic search of online databases and subsequent sifting resulted in 36 publications, 33 of which were cross-sectional and three cohort analyses...
May 25, 2017: Australian Dental Journal
https://www.readbyqxmd.com/read/28543091/intraoperative-localized-constrained-registration-in-navigated-bronchoscopy
#7
Erlend Fagertun Hofstad, Hanne Sorger, Janne Beate Lervik Bakeng, Lucian Gruionu, Håkon Olav Leira, Tore Amundsen, Thomas Langø
PURPOSE: One of the major challenges in electromagnetic navigated bronchoscopy is the navigation accuracy. An initial rigid image-to-patient registration may not be optimal for the entire lung volume, as the lung tissue anatomy is likely to have shifted since the time of computer tomography (CT) acquisition. The accuracy of the initial rigid registration will also be affected throughout the procedure by breathing, coughing, patient movement and tissue displacements due to pressure from bronchoscopy tools...
May 25, 2017: Medical Physics
https://www.readbyqxmd.com/read/28542574/combination-therapy-of-cancer-with-cancer-vaccine-and-immune-checkpoint-inhibitors-a-mathematical-model
#8
Xiulan Lai, Avner Friedman
In this paper we consider a combination therapy of cancer. One drug is a vaccine which activates dendritic cells so that they induce more T cells to infiltrate the tumor. The other drug is a checkpoint inhibitor, which enables the T cells to remain active against the cancer cells. The two drugs are positively correlated in the sense that an increase in the amount of each drug results in a reduction in the tumor volume. We consider the question whether a treatment with combination of the two drugs at certain levels is preferable to a treatment by one of the drugs alone at 'roughly' twice the dosage level; if that is the case, then we say that there is a positive 'synergy' for this combination of dosages...
2017: PloS One
https://www.readbyqxmd.com/read/28542520/an-efficient-semi-supervised-community-detection-framework-in-social-networks
#9
Zhen Li, Yong Gong, Zhisong Pan, Guyu Hu
Community detection is an important tasks across a number of research fields including social science, biology, and physics. In the real world, topology information alone is often inadequate to accurately find out community structure due to its sparsity and noise. The potential useful prior information such as pairwise constraints which contain must-link and cannot-link constraints can be obtained from domain knowledge in many applications. Thus, combining network topology with prior information to improve the community detection accuracy is promising...
2017: PloS One
https://www.readbyqxmd.com/read/28542365/delusion-proneness-displays-comorbidity-with-traits-of-autistic-spectrum-disorders-and-adhd
#10
Anaïs Louzolo, Petter Gustavsson, Lars Tigerström, Martin Ingvar, Andreas Olsson, Predrag Petrovic
There is an increasing body of evidence suggesting a significant comorbidity between psychotic disorders such as schizophrenia and attention-deficit/hyperactivity disorder (ADHD) or autism-spectrum disorders (ASD). Recently, research on psychosis-proneness in otherwise healthy individuals has been a promising way to better understand the mechanisms underlying psychosis. As both ADHD and ASD symptoms show a normal distribution in the general population, such trait comorbidity may confound studies on psychosis-proneness...
2017: PloS One
https://www.readbyqxmd.com/read/28542333/it-takes-biking-to-learn-physical-activity-improves-learning-a-second-language
#11
Fengqin Liu, Simone Sulpizio, Suchada Kornpetpanee, Remo Job
Recent studies have shown that concurrent physical activity enhances learning a completely unfamiliar L2 vocabulary as compared to learning it in a static condition. In this paper we report a study whose aim is twofold: to test for possible positive effects of physical activity when L2 learning has already reached some level of proficiency, and to test whether the assumed better performance when engaged in physical activity is limited to the linguistic level probed at training (i.e. L2 vocabulary tested by means of a Word-Picture Verification task), or whether it extends also to the sentence level (which was tested by means of a Sentence Semantic Judgment Task)...
2017: PloS One
https://www.readbyqxmd.com/read/28542266/underwater-sonar-image-detection-a-combination-of-non-local-spatial-information-and-quantum-inspired-shuffled-frog-leaping-algorithm
#12
Xingmei Wang, Shu Liu, Zhipeng Liu
This paper proposes a combination of non-local spatial information and quantum-inspired shuffled frog leaping algorithm to detect underwater objects in sonar images. Specifically, for the first time, the problem of inappropriate filtering degree parameter which commonly occurs in non-local spatial information and seriously affects the denoising performance in sonar images, was solved with the method utilizing a novel filtering degree parameter. Then, a quantum-inspired shuffled frog leaping algorithm based on new search mechanism (QSFLA-NSM) is proposed to precisely and quickly detect sonar images...
2017: PloS One
https://www.readbyqxmd.com/read/28541904/diffusion-based-model-for-synaptic-molecular-communication-channel
#13
Tooba Khan, Bilgesu A Bilgin, Ozgur B Akan
Computational methods have been extensively used to understand underlying dynamics of molecular communication methods employed by nature. One very effective and popular approach is to utilize a Monte Carlo simulation. Although it is very reliable, this method can have a very high computational cost, which in some cases renders the simulation impractical. Therefore, in this paper, for the special case of an excitatory synaptic molecular communication channel, we present a novel mathematical model for the diffusion and binding of neurotransmitters that takes into account the effects of synaptic geometry in three-dimensional space and re-absorption of neurotransmitters by the transmitting neuron...
May 23, 2017: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/28541529/statistical-algorithms-improve-accuracy-of-gene-fusion-detection
#14
Gillian Hsieh, Rob Bierman, Linda Szabo, Alex Gia Lee, Donald E Freeman, Nathaniel Watson, E Alejandro Sweet-Cordero, Julia Salzman
Gene fusions are known to play critical roles in tumor pathogenesis. Yet, sensitive and specific algorithms to detect gene fusions in cancer do not currently exist. In this paper, we present a new statistical algorithm, MACHETE (Mismatched Alignment CHimEra Tracking Engine), which achieves highly sensitive and specific detection of gene fusions from RNA-Seq data, including the highest Positive Predictive Value (PPV) compared to the current state-of-the-art, as assessed in simulated data. We show that the best performing published algorithms either find large numbers of fusions in negative control data or suffer from low sensitivity detecting known driving fusions in gold standard settings, such as EWSR1-FLI1...
May 24, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28541227/manifold-preserving-an-intrinsic-approach-for-semisupervised-distance-metric-learning
#15
Shihui Ying, Zhijie Wen, Jun Shi, Yaxin Peng, Jigen Peng, Hong Qiao
In this paper, we address the semisupervised distance metric learning problem and its applications in classification and image retrieval. First, we formulate a semisupervised distance metric learning model by considering the metric information of inner classes and interclasses. In this model, an adaptive parameter is designed to balance the inner metrics and intermetrics by using data structure. Second, we convert the model to a minimization problem whose variable is symmetric positive-definite matrix. Third, in implementation, we deduce an intrinsic steepest descent method, which assures that the metric matrix is strictly symmetric positive-definite at each iteration, with the manifold structure of the symmetric positive-definite matrix manifold...
May 18, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28540564/digital-breast-tomosynthesis-dbt-recommendations-from-the-italian-college-of-breast-radiologists-icbr-by-the-italian-society-of-medical-radiology-sirm-and-the-italian-group-for-mammography-screening-gisma
#16
Daniela Bernardi, Paolo Belli, Eva Benelli, Beniamino Brancato, Lauro Bucchi, Massimo Calabrese, Luca A Carbonaro, Francesca Caumo, Beatrice Cavallo-Marincola, Paola Clauser, Chiara Fedato, Alfonso Frigerio, Vania Galli, Livia Giordano, Paolo Giorgi Rossi, Paola Golinelli, Doralba Morrone, Giovanna Mariscotti, Laura Martincich, Stefania Montemezzi, Carlo Naldoni, Adriana Paduos, Pietro Panizza, Federica Pediconi, Fiammetta Querci, Antonio Rizzo, Gianni Saguatti, Alberto Tagliafico, Rubina M Trimboli, Marco Zappa, Chiara Zuiani, Francesco Sardanelli
This position paper, issued by ICBR/SIRM and GISMa, summarizes the evidence on DBT and provides recommendations for its use. In the screening setting, DBT in adjunct to digital mammography (DM) increased detection rate by 0.5-2.7‰ and decreased false positives by 0.8-3.6% compared to DM alone in observational and double-testing experimental studies. The reduction in recall rate could be less prominent in those screening programs which already have low recall rates with DM. The increase in radiation exposure associated with DM/DBT protocols has been solved by the introduction of synthetic mammograms (sDM) reconstructed from DBT datasets...
May 25, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28539915/the-possible-role-of-helicobacter-pylori-infection-in-non-alcoholic-fatty-liver-disease
#17
REVIEW
Dan-Dan Cheng, Cong He, Hong-Hui Ai, Ying Huang, Nong-Hua Lu
Helicobacter pylori (H. pylori) which colonizes the stomach can cause a wide array of gastric disorders, including chronic gastritis, peptic ulcer, and gastric cancer. Recently, accumulating evidence has implicated H. pylori infection in extragastrointestinal diseases such as cardiovascular diseases, neurological disorders, and metabolic diseases. At the same time, many scholars have noted the relationship between H. pylori infection and non-alcoholic fatty liver disease (NAFLD). Despite the positive association between H...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28539752/optimal-bounds-for-arithmetic-geometric-and-toader-means-in-terms-of-generalized-logarithmic-mean
#18
Qing Ding, Tiehong Zhao
In this paper, we find the greatest values [Formula: see text] and the smallest values [Formula: see text] such that the double inequalities [Formula: see text] and [Formula: see text] hold for all [Formula: see text] with [Formula: see text], where [Formula: see text], [Formula: see text] and [Formula: see text] are the arithmetic-geometric, Toader and generalized logarithmic means of two positive numbers a and b, respectively.
2017: Journal of Inequalities and Applications
https://www.readbyqxmd.com/read/28539674/nutrition-label-experience-and-consumption-of-transitional-foods-among-a-nationwide-cohort-of-42-750-thai-adults
#19
Wimalin Rimpeekool, Martyn Kirk, Vasoontara Yiengprugsawan, Cathy Banwell, Sam-Ang Seubsman, Adrian Sleigh
PURPOSE: The purpose of this paper is to assess the usefulness of nutrition labels in Thailand during nutrition transition from traditional to modern diets that increase salt, sugar, and calorie intake and to note socio-demographic interactions and associations with consumption of transitional processed foods. DESIGN/METHODOLOGY/APPROACH: The authors studied 42,750 distance learning Open University adults aged 23-96 years in 2013 residing nationwide and participating in an ongoing community-based prospective cohort study...
2017: Br Food J
https://www.readbyqxmd.com/read/28539481/inferring-stratified-parasitoid-dispersal-mechanisms-and-parameters-from-coarse-data-using-mathematical-and-bayesian-methods
#20
Christopher Strickland, Nadiah P Kristensen, Laura Miller
Biological invasions have movement at the core of their success. However, due to difficulties in collecting data, medium- and long-distance dispersal of small insects has long been poorly understood and likely to be underestimated. The agricultural release of parasitic hymenoptera, a group of wasps that are critical for biological pest control, represents a rare opportunity to study the spread of insects on multiple spatial scales. As these insects are typically less than 1 mm in size and are challenging to track individually, a first-time biocontrol release will provide a known spatial position and time of initial release for all individuals that are subsequently collected...
May 2017: Journal of the Royal Society, Interface
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