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https://www.readbyqxmd.com/read/28647989/-accuracy-of-ct-colonography-for-the-detection-of-colorectal-neoplasm-a-subgroup-meta-analysis
#1
H H Yu, H Y Huang, Y S Jiang, C Zhu, C G Guo, M Dai, X J Xing, J F Shi
Objective: To assess the accuracy of computed tomographic colonography (CTC) for detection of colorectal neoplasm. Methods: Publications prior to January 2016 from the Medline, Embase, CNKI, WANFANG, and VIP literature databases were systematically reviewed. A QUADAS checklist was used to assess the quality of the studies. According to the sizes of tumor (≥6 mm or ≥10 mm), diagnostic test accuracy indexes (area under the curve, sensitivity and specific) were pooled and stratified. Spearman correlation and curve of summary receiver operating characteristic (SROC) were applied to comprehensively assess the threshold effect...
June 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28647986/-studies-on-the-serum-types-and-identification-efficiency-on-diarrheagenic-escherichia-coli-isolated-from-diarrhea-patients-in-zhejiang-province
#2
F Yu, R N Wang, X Chen, S F Zheng, Y Y Wang, Y Chen
Objective: To investigate the serotypes of Diarrheagenic Escherichia coli (DEC) isolated from diarrheal patients in Zhejiang province and to explore the identification efficiency of serological screening methods. Methods: Serological agglutination tests were carried out in 696 strains of DEC (through the identification of virulence genes) which were selected from the Infectious Diarrhea Pathogen Monitoring Network Strain Bank of Zhejiang province, from July 2009 to June 2013. Results of virulence genes, serological identification and classification were compared...
June 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28647916/impact-of-site-selection-and-study-conduct-on-outcomes-in-global-clinical-trials
#3
REVIEW
Chaudhry M S Sarwar, Muthiah Vaduganathan, Javed Butler
PURPOSE OF REVIEW: There are over 25 million patients living with heart failure globally. Overall, and especially post-discharge, clinical outcomes have remained poor in heart failure despite multiple trials, with both successes and failures over the last two decades. Matching therapies to the right patient population, identifying high-quality sites, and ensuring optimal trial design and execution represent important considerations in the development of novel therapeutics in this space...
June 24, 2017: Current Heart Failure Reports
https://www.readbyqxmd.com/read/28647904/a-cost-precision-model-for-marine-environmental-monitoring-based-on-time-integrated-averages
#4
Ulf Båmstedt, Sonia Brugel
Ongoing marine monitoring programs are seldom designed to detect changes in the environment between different years, mainly due to the high number of samples required for a sufficient statistical precision. We here show that pooling over time (time integration) of seasonal measurements provides an efficient method of reducing variability, thereby improving the precision and power in detecting inter-annual differences. Such data from weekly environmental sensor profiles at 21 stations in the northern Bothnian Sea was used in a cost-precision spatio-temporal allocation model...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28647896/omics-based-hybrid-prediction-in-maize
#5
Matthias Westhues, Tobias A Schrag, Claas Heuer, Georg Thaller, H Friedrich Utz, Wolfgang Schipprack, Alexander Thiemann, Felix Seifert, Anita Ehret, Armin Schlereth, Mark Stitt, Zoran Nikoloski, Lothar Willmitzer, Chris C Schön, Stefan Scholten, Albrecht E Melchinger
Complementing genomic data with other "omics" predictors can increase the probability of success for predicting the best hybrid combinations using complex agronomic traits. Accurate prediction of traits with complex genetic architecture is crucial for selecting superior candidates in animal and plant breeding and for guiding decisions in personalized medicine. Whole-genome prediction has revolutionized these areas but has inherent limitations in incorporating intricate epistatic interactions. Downstream "omics" data are expected to integrate interactions within and between different biological strata and provide the opportunity to improve trait prediction...
June 24, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28647877/volatile-organic-compounds-vocs-during-non-haze-and-haze-days-in-shanghai-characterization-and-secondary-organic-aerosol-soa-formation
#6
Deming Han, Zhen Wang, Jinping Cheng, Qian Wang, Xiaojia Chen, Heling Wang
To better understand the characterization and secondary organic aerosol (SOA) formation of volatile organic compounds (VOCs) during non-haze and haze days, ambient VOCs were continuously measured by a vehicle-mounted online thermal desorption system coupled with a gas chromatography-mass spectrometry (TD-GC/MS) system in Shanghai, China. The average concentrations of VOCs in haze episodes (193.2 μg m(-3)) were almost 50% higher than in non-haze periods (130.8 μg m(-3)). VOC concentrations exhibited a bi-modal pattern in the morning and evening rush hour periods on both non-haze and haze days...
June 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28647875/evaluating-the-efficiency-of-nuclear-energy-policies-an-empirical-examination-for-26-countries
#7
Giray Gozgor, Ender Demir
The decarbonization of the global economy is an urgent concern. As a potential solution, it can be important to understand the efficiency of nuclear energy policies. For this purpose, the paper analyzes whether there is a unit root in nuclear energy consumption in 26 countries and it uses the unit root tests with two endogenous (unknown) structural breaks. The paper finds that nuclear energy consumption is stationary around a level and the time trend in 25 of 26 countries and nuclear energy consumption contains a unit root only in France...
June 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28647873/degradation-of-3-4-dichlorobenzotrifluoride-by-the-fenton-like-process-using-zirconia-coated-magnetite-magnetic-nanoparticles-as-an-effective-heterogeneous-catalyst
#8
Hai Chen, Zhengnan Sun, Zhilin Yang, Zhonglei Zhang, Jianlong Wang, Mingbao Feng, Qi Yang
In this study, zirconia-coated magnetite magnetic nanoparticles (ZrO2/Fe3O4 MNPs) were prepared, characterized, and used as an effective and reusable heterogeneous catalyst for 3,4-dichlorobenzotrifluoride (3,4-DCBTE) degradation. The catalytic potential of the Fe3O4/ZrO2-H2O2 system for the removal of 3,4-DCBTE was tested in comparison with several other systems, and the effects of various operating parameters, including initial solution pH, catalyst addition, H2O2 concentrations, and reaction temperature, were also evaluated with respect to the degradation efficiency of 3,4-DCBTE...
June 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28647854/the-influence-of-head-of-bed-elevation-in-patients-with-obstructive-sleep-apnea
#9
Fábio José Fabrício de Barros Souza, Pedro Rodrigues Genta, Albino José de Souza Filho, Andrew Wellman, Geraldo Lorenzi-Filho
PURPOSE: The purpose of this study is to test the effects of a mild degree of head-of-bed elevation (HOBE) (7.5°) on obstructive sleep apnea (OSA) severity and sleep quality. METHODS: OSA patients were recruited from a single sleep clinic (Criciúma, Santa Catarina, Brazil). Following a baseline polysomnography (PSG), all patients underwent a PSG with HOBE (within 2 weeks). In addition, a subset of patients performed a third PSG without HOBE. RESULTS: Fifty-two patients were included in the study (age 53...
June 24, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28647825/contribution-characteristics-of-the-in-situ-extracellular-polymeric-substances-eps-in-phanerochaete-chrysosporium-to-pb-immobilization
#10
Ningjie Li, Xuehong Zhang, Dunqiu Wang, Yan Cheng, Lei Wu, Linbo Fu
White rot fungi have been extensively reported to have strong adsorption capacity to heavy metal ions, whereas the knowledge of extracellular polymeric substances (EPS) from the fungus has been rarely involved. In this study, the contribution characteristics of 'the in situ EPS in Phanerochaete chrysosporium to Pb immobilization were investigated. First of all, the component and amount of EPS were investigated. It was found that the main component of EPS was carbohydrates, and highest EPS amount was produced at 5 days...
June 24, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28647795/investigation-of-chlorella-vulgaris-utex-265-cultivation-under-light-and-low-temperature-stressed-conditions-for-lutein-production-in-flasks-and-the-coiled-tree-photo-bioreactor-ctpbr
#11
Mengyue Gong, Amarjeet Bassi
Lutein has an increasing share in the pharmaceutical and nutraceutical market due to its benefits to eye health. Microalgae may be a potential source for lutein production while the expense limits the commercialization. In this study, a coiled tubular tree photobioreactor (CTPBR) design was investigated for cultivating the cold tolerant microalgae Chlorella vulgaris UTEX 265 under various conditions for lutein production. The influence and interaction of light irradiance strength, lighting cycle, and temperature on microalgae and lutein production efficiency at low temperature range were also studied in flasks via response surface method (RSM)...
June 24, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28647757/arbuscular-mycorrhiza-effects-on-plant-performance-under-osmotic-stress
#12
REVIEW
Christian Santander, Ricardo Aroca, Juan Manuel Ruiz-Lozano, Jorge Olave, Paula Cartes, Fernando Borie, Pablo Cornejo
At present, drought and soil salinity are among the most severe environmental stresses that affect the growth of plants through marked reduction of water uptake which lowers water potential, leading to osmotic stress. In general, osmotic stress causes a series of morphological, physiological, biochemical, and molecular changes that affect plant performance. Several studies have found that diverse types of soil microorganisms improve plant growth, especially when plants are under stressful conditions. Most important are the arbuscular mycorrhizal fungi (AMF) which form arbuscular mycorrhizas (AM) with approximately 80% of plant species and are present in almost all terrestrial ecosystems...
June 25, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28647747/comparing-the-effects-of-mindfulness-based-cognitive-therapy-and-sleep-psycho-education-with-exercise-on-chronic-insomnia-a-randomised-controlled-trial
#13
Samuel Yeung-Shan Wong, De-Xing Zhang, Carole Chi-Kwan Li, Benjamin Hon-Kei Yip, Dicken Cheong-Chun Chan, Yuet-Man Ling, Cola Siu-Lin Lo, Doris Mei-Sum Woo, Yu-Ying Sun, Helen Ma, Winnie Wing-Sze Mak, Ting Gao, Tatia Mei-Chun Lee, Yun-Kwok Wing
BACKGROUND: Mindfulness-based cognitive therapy (MBCT) is a potential treatment for chronic insomnia. We evaluated the efficacy of MBCT for insomnia (MBCT-I) by comparing it with a sleep psycho-education with exercise control (PEEC) group. METHODS: Adults with chronic primary insomnia (n = 216) were randomly allocated to the MBCT-I or PEEC group. The MBCT-I included mindfulness and psycho-education with cognitive and behavioural components under cognitive behavioural therapy for insomnia...
June 24, 2017: Psychotherapy and Psychosomatics
https://www.readbyqxmd.com/read/28647662/microsurgical-bypass-training-rat-model-part-1-technical-nuances-of-exposure-of-the-aorta-and-iliac-arteries
#14
Ali Tayebi Meybodi, Michael T Lawton, Pooneh Mokhtari, Sonia Yousef, Sirin Gandhi, Arnau Benet
BACKGROUND AND OBJECTIVE: Animal models using rodents are frequently used for the purpose of practicing microvascular anastomosis - an essential technique in cerebrovascular surgery. However, safely and efficiently exposing rat's target vessels is technically difficult. Such difficulty may lead to excessive hemorrhage and shorten animal survival. This limits the ability to perform multiple anastomoses on a single animal and may increase the overall training time and costs. We report our model for microsurgical bypass training in rodents in two consecutive articles...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28647609/a-machine-learning-approach-for-automated-wide-range-frequency-tagging-analysis-in-embedded-neuromonitoring-systems
#15
Fabio Montagna, Marco Buiatti, Simone Benatti, Davide Rossi, Elisabetta Farella, Luca Benini
EEG is a standard non-invasive technique used in neural disease diagnostics and neurosciences. Frequency-tagging is an increasingly popular experimental paradigm that efficiently tests brain function by measuring EEG responses to periodic stimulation. Recently, frequency-tagging paradigms have proven successful with low stimulation frequencies (0.5 - 6 Hz), but the EEG signal is intrinsically noisy in this frequency range, requiring heavy signal processing and significant human intervention for response estimation...
June 21, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28647589/mannose-conjugated-layered-double-hydroxide-nanocomposite-for-targeted-sirna-delivery-to-enhanced-cancer-therapy
#16
Li Li, Run Zhang, Wenyi Gu, Zhi Ping Xu
Sheet-like layered double hydroxide nanoparticles (LDH NPs) have showed great potentials in biomedical applications such as nanocarriers for drug and gene delivery, biosensors and imaging agents. However, target delivery of drugs and genes using LDH NPs to the desired tumor sites is a major challenge in cancer therapy. The aim of this study is to develop a functional LDH-based nanocomposite for target delivery of siRNA to cancer cells. Mannose as a targeting moiety was firstly conjugated onto SiO2-coated LDH nanocomposite...
June 21, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28647576/robotic-assisted-excision-of-a-urachal-diverticulum
#17
Pamela Frazzini Padilla, Soo Kwon
OBJECTIVE: To demonstrate a combined robotic assisted laparoscopic technique with concomitant cystoscopy use for excision of a urachal diverticulum, to ensure complete resection of diverticulum and bladder cuff. DESIGN: Step-by-step demonstration and explanation of the procedure using video illustration. IRB/Ethics Committee ruled that approval was not required for this case report, however patient consent was obtained. SETTING: Vesicourachal diverticula account for approximately 3-5% of congenital urachal anomalies...
June 21, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28647572/adsorption-of-solophenyl-red-3bl-polyazo-dye-onto-amine-functionalized-mesoporous-carbons
#18
Joanna Goscianska, Nady A Fathy, Reham M M Aboelenin
Mesoporous carbon of cubic structure was functionalized with ethylamine, ethylenediamine, diethylenetriamine and triethylenetetramine at 40°C for 8h. The mesostructure and textural parameters of the new materials were determined by X-ray diffraction and low-temperature nitrogen sorption techniques. The functional groups present on the surface of the samples were identified by FT-IR and thermogravimetric studies. Functionalization of the mesoporous carbon led to reduction of the surface area and pore volume as well as to an increase in the mean pore diameter...
June 19, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28647571/adsorption-of-p-chlorophenol-on-three-amino-modified-hyper-cross-linked-resins
#19
Xiaomei Wang, Hebing Li, Jianhan Huang
Three amino-modified hyper-cross-linked resins (HCP-M, HCP-E, and HCP-D) were synthesized, and they were evaluated for adsorption of p-chlorophenol from aqueous solution. The results indicated that the uploading amounts of the amino groups on the three resins followed an order of HCP-M<HCP-E<HCP-D, while their Brunauer-Emmett-Teller surface area had an opposite order. The three resins were efficient for adsorption of p-chlorophenol from aqueous solution and hydrogen bonding was the main driving force for the adsorption...
June 19, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28647524/preparation-and-evaluation-of-bsa-based-hydrosol-nanoparticles-cross-linked-with-genipin-for-oral-administration-of-poorly-water-soluble-curcumin
#20
Narges Shahgholian, Ghadir Rajabzadeh, Bizhan Malaekeh-Nikouei
One of the most interesting functions of albumin is the ability to interact with bioactive compounds. This study describes preparation of protein-based nanoparticles (NPs) for the preparation of solid dispersion of curcumin (CN). Fabrication of hydrosol system of dispersed CN in bovine serum albumin (BSA) was approached, followed by cross-linking with glutaraldehyde (Gta). Response surface methodology (RSM) was used to investigate the influence of input factors (pH, CN content and organic phase ratio (r)), on the particle size and CN entrapment efficiency (EE)...
June 21, 2017: International Journal of Biological Macromolecules
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