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https://www.readbyqxmd.com/read/28231656/-acute-effect-of-ambient-air-pollution-on-small-airway-lung-functions-among-school-children-in-shanghai
#1
L J Zhang, C Y Guo, H H Xu, D Xu, X B Shen, X Y Du, M H Zhang, J G Tan, J H Zhang, C Y Dong, H L Qian, Y W Shi, M Z Pan, X D Zhou
Objective: To study the acute effects of compound ambient air pollution on small airway lung functions among school children in Shanghai. Method: A longitudinal survey on lung functions was conducted among 233 school-children from three schools (A, B and C, located in innerring, mid-ring and outer-ring areas). Lung function test was performed once a week for 3 times respectively, among children in school A and B in Dec. 2013 and in school C in Dec. 2014. The fourth lung function test was tested in Jun. 2014 and May 2015 in the respective schools...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28231540/organic-amine-catalytic-organosolv-pretreatment-of-corn-stover-for-enzymatic-saccharification-and-high-quality-lignin
#2
Chenglun Tang, Junqiang Shan, Yanjun Chen, Lingxia Zhong, Tao Shen, Chenjie Zhu, Hanjie Ying
A novel and efficient organic amine and organosolv synergetic pretreatment method was developed to overcome the recalcitrance of lignocellulose to produce fermentable sugars and high-quality salt-free lignin. After optimization of the process parameters, a delignification of 81.7% and total sugar yield of 83.2% (87.1% glucose, 75.4% xylose) could be obtained using n-propylamine (10mmol/g, biomass) as a catalyst and aqueous ethanol (60%, v/v) as a solvent. The susceptibility of the substrates to enzymatic digestibility was explained by their physical and chemical characteristics...
February 13, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28231445/principles-of-systems-biology-no-14
#3
(no author information available yet)
This month: sage advice from phage to their offspring; systematic analyses of protein quality control, mitochondrial respiration, and woody biomass; a continental-scale experiment; and engineered protein tools galore.
February 22, 2017: Cell Systems
https://www.readbyqxmd.com/read/28231390/intraoperative-assessment-of-laryngeal-pathologies-with-optical-coherence-tomography-integrated-into-a-surgical-microscope
#4
Anna S Englhard, Tom Betz, Veronika Volgger, Eva Lankenau, Georg J Ledderose, Herbert Stepp, Christian Homann, Christian S Betz
OBJECTIVE: Endoscopic examination followed by tissue biopsy is the gold standard in the evaluation of lesions of the upper aerodigestive tract. However, it can be difficult to distinguish between healthy mucosa, dysplasia, and invasive carcinoma. Optical coherence tomography (OCT) is a non-invasive technique which acquires high-resolution, cross-sectional images of tissue in vivo. Integrated into a surgical microscope, it allows the intraoperative evaluation of lesions simultaneously with microscopic visualization...
February 23, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28231143/modified-atmosphere-systems-and-shelf-life-extension-of-fish-and-fishery-products
#5
REVIEW
Christina A Mireles DeWitt, Alexandra C M Oliveira
This review aims at summarizing the findings of studies published over the past 15 years on the application of modified atmosphere (MA) systems for shelf life extension of fish and fishery products. This review highlights the importance of CO₂ in the preservation of seafood products, and underscores the benefits of combining MA technology with product storage in the superchilled temperature range. It is generally accepted that MA technology cannot improve product quality and should not be utilized as a substitute for good sanitation and strict temperature control...
June 28, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231142/a-rapid-colorimetric-method-reveals-fraudulent-substitutions-in-sea-urchin-roe-marketed-in-sardinia-italy
#6
Domenico Meloni, Antonio Spina, Gianluca Satta, Vittorio Chessa
In recent years, besides the consumption of fresh sea urchin specimens, the demand of minimally-processed roe has grown considerably. This product has made frequent consumption in restaurants possible and frauds are becoming widespread with the partial replacement of sea urchin roe with surrogates that are similar in colour. One of the main factors that determines the quality of the roe is its colour and small differences in colour scale cannot be easily discerned by the consumers. In this study we have applied a rapid colorimetric method for reveal the fraudulent partial substitution of semi-solid sea urchin roe with liquid egg yolk...
June 25, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231125/fundamental-study-on-the-impact-of-gluten-free-starches-on-the-quality-of-gluten-free-model-breads
#7
Stefan W Horstmann, Markus C E Belz, Mareile Heitmann, Emanuele Zannini, Elke K Arendt
Starch is widely used as an ingredient and significantly contributes to texture, appearance, and overall acceptability of cereal based foods, playing an important role due to its ability to form a matrix, entrapping air bubbles. A detailed characterisation of five gluten-free starches (corn, wheat, rice, tapioca, potato) was performed in this study. In addition, the influence of these starches, with different compositional and morphological properties, was evaluated on a simple gluten-free model bread system...
April 21, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231118/consumer-choice-between-food-safety-and-food-quality-the-case-of-farm-raised-atlantic-salmon
#8
Morteza Haghiri
Since the food incidence of polychlorinated biphenyls in farm-raised Atlantic salmon, its market demand has drastically changed as a result of consumers mistrust in both the quality and safety of the product. Policymakers have been trying to find ways to ensure consumers that farm-raised Atlantic salmon is safe. One of the suggested policies is the implementation of integrated traceability methods and quality control systems. This article examines consumer choice between food safety and food quality to purchase certified farm-raised Atlantic salmon, defined as a product that has passed through various stages of traceability systems in the province of Newfoundland and Labrador, Canada...
March 25, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231095/optimization-of-fat-reduced-puff-pastry-using-response-surface-methodology
#9
Christoph Silow, Emanuele Zannini, Claudia Axel, Markus C E Belz, Elke K Arendt
Puff pastry is a high-fat bakery product with fat playing a key role, both during the production process and in the final pastry. In this study, response surface methodology (RSM) was successfully used to evaluate puff pastry quality for the development of a fat-reduced version. The technological parameters modified included the level of roll-in fat, the number of fat layers (50-200) and the final thickness (1.0-3.5 mm) of the laminated dough. Quality characteristics of puff pastry were measured using the Texture Analyzer with an attached Extended Craft Knife (ECK) and Multiple Puncture Probe (MPP), the VolScan and the C-Cell imaging system...
February 22, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231081/improving-bread-quality-with-the-application-of-a-newly-purified-thermostable-%C3%AE-amylase-from-rhizopus-oryzae-fsis4
#10
Amel Ait Kaki El-Hadef El-Okki, Mohammed Gagaoua, Hayat Bourekoua, Kahina Hafid, Leila Bennamoun, Shahrazed Djekrif-Dakhmouche, Mohamed El-Hadef El-Okki, Zahia Meraihi
A new thermostable α-amylase from Rhizopus oryzae FSIS4 was purified for first time and recovered in a single step using a three-phase partitioning (TPP) system. The fungal α-amylase, at a concentration of 1.936 U per kg of flour, was used in bread-making and compared to the commercial enzyme. The results showed a significant effect of the recovered α-amylase in the prepared bread and allowed us to improve the quality of the bread. The study indicated clearly that the recovered α-amylase is a potential candidate for future applications in the bread-making industry and in other food biotechnology applications...
January 1, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231011/ultrahigh-responsivity-photodetectors-from-perovskite-nanowire-arrays-for-sequentially-tunable-spectral-measurement
#11
Wei Deng, Liming Huang, Xiuzhen Xu, Xiujuan Zhang, Xiangcheng Jin, Shuit-Tong Lee, Jiansheng Jie
Compared with polycrystalline films, single-crystalline methylammonium lead halide (MAPbX3, X = halogen) perovskite nanowires (NWs) with well-defined structure possess superior optoelectronic properties for optoelectronic applications. However, most of the prepared perovskite NWs exhibit properties below expectations due to poor crystalline quality and rough surfaces. It also remains a challenge to achieve aligned growth of single-crystalline perovskite NWs for integrated device applications. Here, we report a facile fluid-guided anti-solvent vapor-assisted crystallization (FGAVC) method for large-scale fabrication of high-quality single-crystalline MAPb(I1-xBrx)3 (X = 0, 0...
February 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28230899/shared-care-across-the-interface-between-primary-and-specialty-care-in-management-of-long-term-conditions
#12
REVIEW
Susan M Smith, Gráinne Cousins, Barbara Clyne, Shane Allwright, Tom O'Dowd
BACKGROUND: Shared care has been used in the management of many chronic conditions with the assumption that it delivers better care than primary or specialty care alone; however, little is known about the effectiveness of shared care. OBJECTIVES: To determine the effectiveness of shared care health service interventions designed to improve the management of chronic disease across the primary/specialty care interface. This is an update of a previously published review...
February 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28230788/the-adverse-effects-of-triptolide-on-the-reproductive-system-of-caenorhabditis-elegans-oogenesis-impairment-and-decreased-oocyte-quality
#13
Qinli Ruan, Yun Xu, Rui Xu, Jiaying Wang, Yongqing Hua, Meng Wang, Jinao Duan
Previous studies have revealed that Triptolide damages female reproductive capacity, but the mechanism is unclear. In this study, we used Caenorhabditis elegans to investigate the effects of Triptolide on the germline and explore its possible mechanisms. Our data show that exposure for 4 h to 50 and 100 mg/L Triptolide reduced C. elegans fertility, led to depletion and inactivation of spermatids with the changes in the expression levels of related genes, and increased the number of unfertilized oocytes through damaging chromosomes and DNA damage repair mechanisms...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230751/the-feasibility-of-embedding-data-collection-into-the-routine-service-delivery-of-a-multi-component-program-for-high-risk-young-people
#14
Alice Knight, Alys Havard, Anthony Shakeshaft, Myfanwy Maple, Mieke Snijder, Bernie Shakeshaft
BACKGROUND: There is little evidence about how to improve outcomes for high-risk young people, of whom Indigenous young people are disproportionately represented, due to few evaluation studies of interventions. One way to increase the evidence is to have researchers and service providers collaborate to embed evaluation into the routine delivery of services, so program delivery and evaluation occur simultaneously. This study aims to demonstrate the feasibility of integrating best-evidence measures into the routine data collection processes of a service for high-risk young people, and identify the number and nature of risk factors experienced by participants...
February 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28230717/imaging-performance-of-a-handheld-ultrasound-system-with-real-time-computer-aided-detection-of-lumbar-spine-anatomy-a-feasibility-study
#15
Mohamed Tiouririne, Adam J Dixon, F William Mauldin, David Scalzo, Arun Krishnaraj
OBJECTIVES: The aim of this study was to evaluate the imaging performance of a handheld ultrasound system and the accuracy of an automated lumbar spine computer-aided detection (CAD) algorithm in the spines of human subjects. MATERIALS AND METHODS: This study was approved by the institutional review board of the University of Virginia. The authors designed a handheld ultrasound system with enhanced bone image quality and fully automated CAD of lumbar spine anatomy...
February 22, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28230650/acr-appropriateness-criteria%C3%A2-resectable-pancreatic-cancer
#16
William E Jones, W Waren Suh, May Abdel-Wahab, Ross A Abrams, Nilofer Azad, Prajnan Das, Jadranka Dragovic, Karyn A Goodman, Salma K Jabbour, Andre A Konski, Albert C Koong, Rachit Kumar, Percy Lee, Timothy M Pawlik, William Small, Joseph M Herman
Management of resectable pancreatic adenocarcinoma continues to present a challenge due to a paucity of high-quality randomized studies. Administration of adjuvant chemotherapy is widely accepted due to the high risk of systemic spread associated with pancreatic adenocarcinoma, but the role of radiation therapy is less clear. This paper reviews literature associated with resectable pancreatic cancer to include prognostic factors to aid in the selection of patients appropriate for adjuvant therapies. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel...
February 22, 2017: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28230572/automated-bone-screw-tightening-to-adaptive-levels-of-stripping-torque
#17
Karen J Reynolds, Aaron A Mohtar, Tammy M Cleek, Melissa K Ryan, Trevor C Hearn
OBJECTIVE: To use relationships between tightening parameters, related to bone quality, to develop an automated system that determines and controls the level of screw tightening. METHODS: An algorithm relating current at head contact (IHC) to current at construct failure (Imax) was developed. The algorithm was used to trigger cessation of screw insertion at a pre-defined tightening level, in real time, between head contact and maximum current. The ability of the device to stop at the pre-defined level was assessed...
February 20, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28230539/polyenergetic-known-component-ct-reconstruction-with-unknown-material-compositions-and-unknown-x-ray-spectra
#18
Shiyu Xu, Ali Uneri, Akhil Khanna, Jeffrey Siewerdsen, Joseph Webster Stayman
Metal artifacts can cause substantial image quality issues in computed tomography. This is particularly true in interventional imaging where surgical tools or metal implants are in the field-of-view. Moreover, the region-of-interest is often near such devices which is exactly where image quality degradations are largest. Previous work on known-component reconstruction (KCR) has shown the incorporation of a physical model (e.g. shape, material composition, etc.) of the metal component into the reconstruction algorithm can significantly reduce artifacts even near the edge of a metal component...
February 23, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28230459/estimated-cost-effectiveness-cost-benefit-and-risk-reduction-associated-with-an-endocrinologist-pharmacist-diabetes-intense-medical-management-tune-up-clinic
#19
Jan D Hirsch, Mark Bounthavong, Anisa Arjmand, David R Ha, Christine L Cadiz, Andrew Zimmerman, Heather Ourth, Anthony P Morreale, Steven V Edelman, Candis M Morello
BACKGROUND: In 2012 U.S. diabetes costs were estimated to be $245 billion, with $176 billion related to direct diabetes treatment and associated complications. Although a few studies have reported positive glycemic and economic benefits for diabetes patients treated under primary care physician (PCP)-pharmacist collaborative practice models, no studies have evaluated the cost-effectiveness of an endocrinologist-pharmacist collaborative practice model treating complex diabetes patients versus usual PCP care for similar patients...
March 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28230267/the-economic-impact-of-space-weather-where-do-we-stand
#20
J P Eastwood, E Biffis, M A Hapgood, L Green, M M Bisi, R D Bentley, R Wicks, L-A McKinnell, M Gibbs, C Burnett
Space weather describes the way in which the Sun, and conditions in space more generally, impact human activity and technology both in space and on the ground. It is now well understood that space weather represents a significant threat to infrastructure resilience, and is a source of risk that is wide-ranging in its impact and the pathways by which this impact may occur. Although space weather is growing rapidly as a field, work rigorously assessing the overall economic cost of space weather appears to be in its infancy...
February 23, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
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