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https://www.readbyqxmd.com/read/28431357/soil-organic-carbon-and-nitrogen-pools-drive-soil-c-co2-emissions-from-selected-soils-in-maritime-antarctica
#1
C V Pires, C E R G Schaefer, A K Hashigushi, A Thomazini, E I F Filho, E S Mendonça
The ongoing trend of increasing air temperatures will potentially affect soil organic matter (SOM) turnover and soil C-CO2 emissions in terrestrial ecosystems of Maritime Antarctica. The effects of SOM quality on this process remain little explored. We evaluated (i) the quantity and quality of soil organic matter and (ii) the potential of C release through CO2 emissions in lab conditions in different soil types from Maritime Antarctica. Soil samples (0-10 and 10-20cm) were collected in Keller Peninsula and the vicinity of Arctowski station, to determine the quantity and quality of organic matter and the potential to emit CO2 under different temperature scenarios (2, 5, 8 and 11°C) in lab...
April 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28427532/nanotechnology-for-food-packaging-and-food-quality-assessment
#2
Marco Rossi, Daniele Passeri, Alberto Sinibaldi, Mariglen Angjellari, Emanuela Tamburri, Angela Sorbo, Elisabetta Carata, Luciana Dini
Nanotechnology has paved the way to innovative food packaging materials and analytical methods to provide the consumers with healthier food and to reduce the ecological footprint of the whole food chain. Combining antimicrobial and antifouling properties, thermal and mechanical protection, oxygen and moisture barrier, as well as to verify the actual quality of food, e.g., sensors to detect spoilage, bacterial growth, and to monitor incorrect storage conditions, or anticounterfeiting devices in food packages may extend the products shelf life and ensure higher quality of foods...
2017: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/28427428/quality-issues-with-malaria-rapid-diagnostic-test-accessories-and-buffer-packaging-findings-from-a-5-country-private-sector-project-in-africa
#3
Steven A Harvey, Sandra Incardona, Nina Martin, Cristina Lussiana, Elizabeth Streat, Stephanie Dolan, Nora Champouillon, Daniel J Kyabayinze, Robert Mugerwa, Grace Nakanwagi, Nancy Njoki, Ratsimandisa Rova, Jane Cunningham
BACKGROUND: Use of antigen-detecting malaria rapid diagnostic tests (RDTs) has increased exponentially over the last decade. WHO's Global Malaria Programme, FIND, and other collaborators have established a quality assurance scheme to guide product selection, lot verification, transport, storage, and training procedures. Recent concerns over the quality of buffer packaging and test accessories suggest a need to include these items in product assessments. This paper describes quality problems with buffer and accessories encountered in a project promoting private sector RDT use in five African countries and suggests steps to avoid or more rapidly identify and resolve such problems...
April 20, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28424600/systems-subjects-sessions-to-what-extent-do-these-factors-influence-eeg-data
#4
Andrew Melnik, Petr Legkov, Krzysztof Izdebski, Silke M Kärcher, W David Hairston, Daniel P Ferris, Peter König
Lab-based electroencephalography (EEG) techniques have matured over decades of research and can produce high-quality scientific data. It is often assumed that the specific choice of EEG system has limited impact on the data and does not add variance to the results. However, many low cost and mobile EEG systems are now available, and there is some doubt as to the how EEG data vary across these newer systems. We sought to determine how variance across systems compares to variance across subjects or repeated sessions...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28423881/effects-of-calcium-propionate-on-the-fermentation-quality-and-aerobic-stability-of-alfalfa-silage
#5
Zhi Hao Dong, Xian Jun Yuan, Ai You Wen, Seare T Desta, Tao Shao
Objective: To assess the potency of calcium propionate used as silage additive, an experiment was carried out to evaluate the effect of calcium propionate on the nitrogen transformation, fermentation quality and aerobic stability of alfalfa silages. Methods: Alfalfa was ensiled with four levels of calcium propionate (CAP; 5, 10, 15 and 20 g kg-1 of fresh weigh) in laboratory silos for 30 days. After opening, the silages were analyzed for the chemical and microbiological characteristics, and subjected to an aerobic stability test...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28422699/hemorrhage-prediction-models-in-surgical-intensive-care-bedside-monitoring-data-adds-information-to-lab-values
#6
Marco De Pasquale, Travis Moss, Sergio Cerutti, James Calland, Douglas Lake, Randall Moorman, Manuela Ferrario
Hemorrhage is a frequent complication in surgery patients; its identification and management have received increasing attention as a target for quality improvement in patient care in the Intensive Care Unit (ICU). The purposes of this work were i) to find an early detection model for hemorrhage by exploring the range of data mining methods that are currently available, and ii) to compare prediction models utilizing continuously measured physiological data from bedside monitors to those using commonly obtained laboratory tests...
April 12, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28419896/the-use-of-diatoms-in-ecotoxicology-and-bioassessment-insights-advances-and-challenges
#7
REVIEW
Lalit K Pandey, Elizabeth A Bergey, Jie Lyu, Jihae Park, Soyeon Choi, Hojun Lee, Stephen Depuydt, Young-Tae Oh, Sung-Mo Lee, Taejun Han
Diatoms are regularly used for bioassessment and ecotoxicological studies in relation to environmental and anthropogenic disturbances. Traditional taxonomical diatom parameters (cell counts, biovolume estimates, species richness, diversity indices and metrics using sensitive and tolerant diatom species) are regularly used for these studies. In the same context, very less focus was given on new endpoints of diatoms (life-forms, nuclear anomalies, alteration in photosynthetic apparatus shape, motility, lipid bodies, size reduction and deformities), in spite of their numerous merits, such as, their easiness, quickness, cheapness, global acceptation and no especial training in diatom taxonomy...
February 2, 2017: Water Research
https://www.readbyqxmd.com/read/28407781/early-identification-of-patients-requiring-massive-transfusion-embolization-or-hemostatic-surgery-for-traumatic-hemorrhage-a-systematic-review-protocol
#8
Alexandre Tran, Maher Matar, Ewout W Steyerberg, Jacinthe Lampron, Monica Taljaard, Christian Vaillancourt
BACKGROUND: Hemorrhage is a major cause of early mortality following a traumatic injury. The progression and consequences of significant blood loss occur quickly as death from hemorrhagic shock or exsanguination often occurs within the first few hours. The mainstay of treatment therefore involves early identification of patients at risk for hemorrhagic shock in order to provide blood products and control of the bleeding source if necessary. The intended scope of this review is to identify and assess combinations of predictors informing therapeutic decision-making for clinicians during the initial trauma assessment...
April 13, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28404320/influence-of-extrinsic-operational-parameters-on-salt-diffusion-during-ultrasound-assisted-meat-curing
#9
Elena S Inguglia, Zhihang Zhang, Catherine Burgess, Joseph P Kerry, Brijesh K Tiwari
The present study investigated the effect of geometric parameters of the ultrasound instrument during meat salting in order to enhance salt diffusion and salt distribution in pork meat on a lab scale. The effects of probe size (∅2.5 and 1.3cm) and of different distances between the transducer and the meat sample (0.3, 0.5, and 0.8cm) on NaCl diffusion were investigated. Changes in the moisture content and NaCl gain were used to evaluate salt distribution and diffusion in the samples, parallel and perpendicular to ultrasound propagation direction...
March 27, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28402051/silage-fermentation-and-ruminal-degradation-of-stylo-prepared-with-lactic-acid-bacteria-and-cellulase
#10
Mao Li, Hanlin Zhou, Xuejuan Zi, Yimin Cai
In order to improve the silage fermentation of stylo (Stylosanthes guianensis) in tropical areas, stylo silages were prepared with commercial additives Lactobacillus plantarum Chikuso-1 (CH1), L. rhamnasus Snow Lact L (SN), Acremonium cellulase (CE) and their combination as SN+CE or CH1 + CE, and the fermentation quality, chemical composition and ruminal degradation of these silages were studied. Stylo silages treated with lactic acid bacteria (LAB) or cellulase, the pH value and NH3 -N ⁄ total-N were significantly (P < 0...
April 12, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28401174/estimating-scatter-from-sparsely-measured-primary-signal
#11
Gongting Wu, Christina R Inscoe, Jabari Calliste, Jing Shan, Yueh Z Lee, Otto Zhou, Jianping Lu
Scatter radiation severely degrades the image quality. Measurement-based scatter correction methods sample the scatter signal at sparsely distributed points, from which the scatter profile is estimated and deterministically removed from the projection image. The estimation of the scatter profile is generally done through a spline interpolation and the resulting scatter profile is quite smooth. Consequently, the noise is intact and the signal-to-noise ratio is reduced in the projection image after scatter correction, leading to image artifacts and increased noise in the reconstruction images...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28399998/bacterial-ecology-of-artisanal-minas-cheeses-assessed-by-culture-dependent-and-independent-methods
#12
Luana Martins Perin, Maria Luisa Savo Sardaro, Luís Augusto Nero, Erasmo Neviani, Monica Gatti
Artisanal Minas cheese is produced in Minas Gerais state, Brazil and its varieties are named according to their geographical origin (Serro, Canastra, Serra do Salitre, Araxá and Campo das Vertentes). The cheese is produced with raw cow's milk and the whey from the previous cheese production ("pingo"). The high economic and cultural importance of artisanal cheese in Brazil justifies the efforts to ensure its safety, quality and provenance. This study aimed to characterize the microbial diversity composition, and geographical distribution of artisanal Minas cheese, focusing on the characterization of its autochthonous lactic acid bacteria (LAB) microbiota...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/28398525/a-longitudinal-analysis-of-data-quality-in-a-large-pediatric-data-research-network
#13
Ritu Khare, Levon Utidjian, Byron J Ruth, Michael G Kahn, Evanette Burrows, Keith Marsolo, Nandan Patibandla, Hanieh Razzaghi, Ryan Colvin, Daksha Ranade, Melody Kitzmiller, Daniel Eckrich, L Charles Bailey
Objective: PEDSnet is a clinical data research network (CDRN) that aggregates electronic health record data from multiple children's hospitals to enable large-scale research. Assessing data quality to ensure suitability for conducting research is a key requirement in PEDSnet. This study presents a range of data quality issues identified over a period of 18 months and interprets them to evaluate the research capacity of PEDSnet. Materials and Methods: Results were generated by a semiautomated data quality assessment workflow...
April 8, 2017: Journal of the American Medical Informatics Association: JAMIA
https://www.readbyqxmd.com/read/28397461/analytical-and-clinical-validation-of-a-point-of-care-cardiac-troponin-t-test-with-an-improved-detection-limit
#14
Carsten Jungbauer, Julian Hupf, Evangelos Giannitsis, Johann Frick, Anna Slagman, Christoph Ehret, Nicolas Herbert, Christine Jung, Rainer Zerback, Thomas Bertsch, Michael Christ
BACKGROUND: The point-of-care test Roche CARDIAC POC Troponin T (PoC TnT) is an improved assay which has been developed for the Roche cobas h 232 system. METHODS: We performed a multicentre evaluation (four sites) to assess the analytical performance of the PoC TnT assay and to compare it with the central laboratory Elecsys® troponin T high sensitive (lab cTnT-hs) assay. RESULTS: The relative mean differences found in method comparisons of PoC TnT vs...
April 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28390497/social-anxiety-and-social-support-in-romantic-relationships
#15
Eliora Porter, Dianne L Chambless
Little is known about the quality of socially anxious individuals' romantic relationships. In the present study, we examine associations between social anxiety and social support in such relationships. In Study 1, we collected self-report data on social anxiety symptoms and received, provided, and perceived social support from 343 undergraduates and their romantic partners. One year later couples were contacted to determine whether they were still in this relationship. Results indicated that men's social anxiety at Time 1 predicted higher rates of breakup at Time 2...
May 2017: Behavior Therapy
https://www.readbyqxmd.com/read/28390398/challenges-in-the-delivery-of-public-hiv-testing-and-counselling-htc-in-douala-cameroon-providers-perspectives-and-implications-on-quality-of-htc-services
#16
Patrice Ngangue, Marie-Pierre Gagnon, Emmanuelle Bedard
BACKGROUND: The Cameroon government has made HIV testing and counselling (HTC) a priority in its HIV/AIDS strategic plan. However, there is a dearth of literature on the perspectives of providers on the quality of HTC services. The aim of this study was to explore challenges in the provision of HTC services and their implications on quality of HTC services in Douala's district hospitals. METHODS: Two primary data collection methods supported by the Donabedian's model of healthcare were used to explain the challenges in the provision of HTC services and their implications on quality of HTC services...
April 8, 2017: BMC International Health and Human Rights
https://www.readbyqxmd.com/read/28386300/your-next-clinical-cancer-research-project-preparation-in-a-multidisciplinary-environment-is-key
#17
EDITORIAL
Mieke Van Hemelrijck, Cecilia Bosco
For clinical cancer research to have an impact, careful planning in a multidisciplinary translational setting is required. Once your multidisciplinary research team is established, the first step is to define an answerable research question, followed by planning the study design and identifying the study population-allowing for appropriate statistical analyses of high-quality data, whether patient or lab-based. Finally, interpretation of the results also requires multidisciplinary discussions and academic writing in a clear and concise way...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28376399/whey-protein-isolate-cellulose-nanofibre-tio2-nanoparticle-rosemary-essential-oil-nanocomposite-film-its-effect-on-microbial-and-sensory-quality-of-lamb-meat-and-growth-of-common-foodborne-pathogenic-bacteria-during-refrigeration
#18
Mahmood Alizadeh Sani, Ali Ehsani, Mohammad Hashemi
The use of biodegradable nanocomposite films in active packaging is of great importance since they can have a controlled release of antimicrobial compounds. This study was conducted to evaluate the efficacy of whey protein isolate (WPI)/cellulose nanofibre (CNF) nanocomposite films containing 1.0% (w/w) titanium dioxide (TiO2) and 2.0% (w/v) rosemary essential oil (REO) in preserving the microbial and sensory quality of lamb meat during the storage at 4±1°C. Initially, the best concentration of each compound to be added to the film was determined by micro-dilution and disc diffusion methods...
March 28, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28373643/the-role-of-three-dimensional-printed-models-of-skull-in-anatomy-education-a-randomized-controlled-trail
#19
Shi Chen, Zhouxian Pan, Yanyan Wu, Zhaoqi Gu, Man Li, Ze Liang, Huijuan Zhu, Yong Yao, Wuyang Shui, Zhen Shen, Jun Zhao, Hui Pan
Three-dimensional (3D) printed models represent educational tools of high quality compared with traditional teaching aids. Colored skull models were produced by 3D printing technology. A randomized controlled trial (RCT) was conducted to compare the learning efficiency of 3D printed skulls with that of cadaveric skulls and atlas. Seventy-nine medical students, who never studied anatomy, were randomized into three groups by drawing lots, using 3D printed skulls, cadaveric skulls, and atlas, respectively, to study the anatomical structures in skull through an introductory lecture and small group discussions...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28371242/oxytocin-treatment-in-children-with-prader-willi-syndrome-a-double-blind-placebo-controlled-crossover-study
#20
Jennifer L Miller, Roy Tamura, Merlin G Butler, Virginia Kimonis, Carlos Sulsona, June-Anne Gold, Daniel J Driscoll
Prader-Willi syndrome (PWS) is a rare, complex multisystem genetic disorder which includes hypothalamic dysfunction, hyperphagia, cognitive and behavioral problems, increased anxiety, and compulsive behaviors. Individuals with PWS have a deficit of oxytocin producing neurons in the paraventricular nucleus of the hypothalamus. Oxytocin plays a role in regulation of feeding behaviors, social interactions, and emotional reactivity, which are all issues that significantly affect the quality of life for individuals with this syndrome...
March 30, 2017: American Journal of Medical Genetics. Part A
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