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https://www.readbyqxmd.com/read/28647985/-discriminatory-power-of-variable-number-on-tandem-repeats-loci-for-genotyping-mycobacterium-tuberculosis-strains-in-china
#1
H X Chen, C Cai, J Y Liu, Z G Zhang, M Yuan, J N Jia, Z G Sun, H R Huang, J M Gao, W M Li
Objective: Using the standard genotype method, variable number of tandem repeats (VNTR), we constructed a VNTR database to cover all provinces and proposed a set of optimized VNTR loci combinations for each province, in order to improve the preventive and control programs on tuberculosis, in China. Methods: A total of 15 loci VNTR was used to analyze 4 116 Mycobacterium tuberculosis strains, isolated from national survey of Drug Resistant Tuberculosis, in 2007. Hunter-Gaston Index (HGI) was also used to analyze the discriminatory power of each VNTR site...
June 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28647904/a-cost-precision-model-for-marine-environmental-monitoring-based-on-time-integrated-averages
#2
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/28647777/the-effect-of-low-and-high-power-microwave-irradiation-on-in-vitro-grown-sequoia-plants-and-their-recovery-after-cryostorage
#3
A Halmagyi, E Surducan, V Surducan
Two distinct microwave power levels and techniques have been studied in two cases: low-power microwave (LPM) irradiation on in vitro Sequoia plants and high-power microwave (HPM) exposure on recovery rates of cryostored (-196°C) Sequoia shoot apices. Experimental variants for LPM exposure included: (a) in vitro plants grown in regular conditions (at 24 ± 1°C during a 16-h light photoperiod with a light intensity of 39.06 μEm(-2) s(-1) photosynthetically active radiation), (b) in vitro plants grown in the anechoic chamber with controlled environment without microwave irradiation, and (c) in vitro plants grown in the anechoic chamber with LPM irradiation for various times (5, 15, 30, 40 days)...
June 24, 2017: Journal of Biological Physics
https://www.readbyqxmd.com/read/28647759/a-community-based-randomized-controlled-trial-of-mom-power-parenting-intervention-for-mothers-with-interpersonal-trauma-histories-and-their-young-children
#4
Katherine L Rosenblum, Maria Muzik, Diana M Morelen, Emily A Alfafara, Nicole M Miller, Rachel M Waddell, Melisa M Schuster, Julie Ribaudo
We conducted a study to evaluate the effectiveness of Mom Power, a multifamily parenting intervention to improve mental health and parenting among high-risk mothers with young children in a community-based randomized controlled trial (CB-RCT) design. Participants (N = 122) were high-risk mothers (e.g., interpersonal trauma histories, mental health problems, poverty) and their young children (age <6 years), randomized either to Mom Power, a parenting intervention (treatment condition), or weekly mailings of parenting information (control condition)...
June 25, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28647609/a-machine-learning-approach-for-automated-wide-range-frequency-tagging-analysis-in-embedded-neuromonitoring-systems
#5
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/28647570/young-children-s-attributions-of-causal-power-to-novel-invisible-entities
#6
Jonathan D Lane, Patrick Shafto
In two studies, we investigated the development of children's reasoning about potent invisible entities. In Study 1, children aged 2.2-5.5years (N=48) were briefly told about a novel invisible substance that could produce a novel outcome-make a novel box turn green. During this introduction, children watched as one container was inverted over a box and the box lit up green, and then another identical container was inverted over the box and the box did not light up. On test trials, the experimenter inserted a spoon in novel (actually empty) containers and inverted the spoon over the box, which turned green in one trial and did not light up in the other trial...
June 22, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28647561/identification-of-a-novel-splicing-mutation-within-slc17a8-in-a-korean-family-with-hearing-loss-by-whole-exome-sequencing
#7
Nari Ryu, Seokwon Lee, Hong-Joon Park, Byeonghyeon Lee, Tae-Jun Kwon, Jinwoong Bok, Chan Ik Park, Kyu-Yup Lee, Jeong-In Baek, Un-Kyung Kim
Hereditary hearing loss (HHL) is a common genetically heterogeneous disorder, which follows Mendelian inheritance in humans. Because of this heterogeneity, the identification of the causative gene of HHL by linkage analysis or Sanger sequencing have shown economic and temporal limitations. With recent advances in next-generation sequencing (NGS) techniques, rapid identification of a causative gene via massively parallel sequencing is now possible. We recruited a Korean family with three generations exhibiting autosomal dominant inheritance of HL, and the clinical information about this family revealed that there are no other symptoms accompanied with HL...
June 21, 2017: Gene
https://www.readbyqxmd.com/read/28647514/aqueous-cigarette-tar-extracts-disrupt-corticogenesis-from-human-embryonic-stem-cells-in-vitro
#8
Aynun N Begum, Jose S Aguilar, Yiling Hong
BACKGROUND: Cigarette butts are the most common form of litter in the world, and approximately 4.5 trillion smoked cigarettes are discarded every year worldwide. Cigarette butts contain over 4000 chemicals, many of which are known to have neurotoxic effects. Stem cell neuronal differentiation provides an excellent cellular model with which to examine the impact of aqueous cigarette tar extracts (ACTEs) on neurodevelopment. METHODS: We have developed a neurosphere-based stem cell neuronal differentiation protocol that can recapitulate corticogenesis and produce cell types that are similar to upper and lower layer cortical projection neurons found in the germinal zone of the developing human cortex...
June 22, 2017: Environmental Research
https://www.readbyqxmd.com/read/28647508/fingerprint-efficacy-study-of-the-quaternary-alkaloids-in-corydalis-yanhusuo
#9
Qiuyue Li, Huanyu Guan, Xiaoming Wang, Yang He, Hong Sun, Wenting Tan, Xiaomei Luo, Meifeng Su, Yue Shi
ETHNOPHARMACOLOGICAL RELEVANCE: Corydalis yanhusuo is a well-known Chinese herbal medicine that is commonly applied as an analgesic agent in clinic using for thousands of years. Resent research showed that the quaternary ammonium alkaloids from Corydalis yanhusuo have a significant effect on myocardial ischemia. However, the corresponding anti-myocardial ischemia components that represent the efficacy of the quaternary ammonium alkaloids have not been elucidated. AIM OF THE STUDY: Explore the anti-myocardial ischemia components of Corydalis yanhusuo and develop a method of quality control for Corydalis yanhusuo...
June 21, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28647480/phytochemical-profile-and-%C3%AE-glucosidase-inhibitory-activity-of-sardinian-hypericum-scruglii-and-hypericum-hircinum
#10
Manuela Mandrone, Monica Scognamiglio, Antonio Fiorentino, Cinzia Sanna, Luca Cornioli, Fabiana Antognoni, Francesca Bonvicini, Ferruccio Poli
The phytochemical profile, antioxidant activity and α-glucosidase inhibitory activity of Hypericum scruglii Bacchetta, Brullo et Salmeri and Hypericum hircinum L. were analyzed and compared to those of the best-known Hypericum perforatum L. Samples were prepared using three different extraction methods (maceration in 70% ethanol, extraction in MeOH/phosphate buffer and decoction), the influence of which on the metabolic profile and bioactivities are discussed. H. scruglii and H. hircinum extracted in 70% ethanol strongly inhibited α-glucosidase (IC50 7...
June 21, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28647438/attention-is-allocated-closely-ahead-of-the-target-during-smooth-pursuit-eye-movements-evidence-from-eeg-frequency-tagging
#11
Jing Chen, Matteo Valsecchi, Karl R Gegenfurtner
It is under debate whether attention during smooth pursuit is centered right on the pursuit target or allocated preferentially ahead of it. Attentional deployment was previously probed using a secondary task, which might have altered attention allocation and led to inconsistent findings. We measured frequency-tagged steady-state visual evoked potentials (SSVEP) to measure attention allocation in the absence of any secondary probing task. The observers pursued a moving dot while stimuli flickering at different frequencies were presented at various locations ahead or behind the pursuit target...
June 21, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28647433/targeted-release-of-transcription-factors-for-human-cell-reprogramming-by-zebra-cell-penetrating-peptide
#12
Benjamin Caulier, Lionel Berthoin, Helène Coradin, Frédéric Garban, Marie Claire Dagher, Benoît Polack, Bertrand Toussaint, Jean Luc Lenormand, David Laurin
Transcription factors (TFs) are key actors of the control of gene expression and consequently of every major process within cells, ranging from cell fate determination, cell cycle control and response to environment. Their ectopic expression has proven high potential in reprogramming cells for regenerative medicine; ontogenesis studies and cell based modelling. Direct delivery of proteins could represent an alternative to current reprogramming methods using gene transfer but still needs technological improvements...
June 21, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28647419/intracerebral-hemorrhagic-expansion-occurs-in-patients-using-non-vitamin-k-antagonist-oral-anticoagulants-comparable-with-patients-using-warfarin
#13
Kara R Melmed, Patrick Lyden, Norman Gellada, Asma Moheet
BACKGROUND: Non-vitamin K antagonist oral anticoagulant (NOAC) use has significantly reduced intracerebral hemorrhagic (ICH) risk compared with standard anticoagulant treatment. Hematoma expansion (HE) is a known predictor of mortality in warfarin-associated ICH. Little is known about HE in patients using NOACs. METHODS: We conducted a retrospective chart review of patients with ICH admitted to Cedars-Sinai Medical Center from October 2010 to June 2016. We identified patients with concomitant administration of an oral anticoagulant and collected data including evidence of HE on imaging and modified Rankin Scale (mRS) at discharge...
June 21, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28647418/comparison-of-stroke-prediction-accuracy-of-abcd2-and-abcd3-i-in-patients-with-transient-ischemic-attack-a-meta-analysis
#14
Meng Zhao, Shuo Wang, Dong Zhang, Yan Zhang, Xiaofeng Deng, Jizong Zhao
BACKGROUND: A direct comparison of the stroke prediction utility of the ABCD2 and ABCD3-I scores has not been performed. Thus, we conducted a diagnostic meta-analysis and applied the results to a hypothetical cohort of 1000 patients with transient ischemic attack (TIA) to assess the power of stroke prediction by ABCD2 and ABCD3-I scores. METHODS: Medline, PubMed, Embase, and manuscript references were searched to identify studies that directly compared the stroke predictive powers of ABCD2 and ABCD3-I scores...
June 21, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28647287/microwave-thermal-ablation-effects-of-tissue-properties-variations-on-predictive-models-for-treatment-planning
#15
Vanni Lopresto, Rosanna Pinto, Laura Farina, Marta Cavagnaro
Microwave thermal ablation (MTA) therapy for cancer treatments relies on the absorption of electromagnetic energy at microwave frequencies to induce a very high and localized temperature increase, which causes an irreversible thermal damage in the target zone. Treatment planning in MTA is based on experimental observations of ablation zones in ex vivo tissue, while predicting the treatment outcomes could be greatly improved by reliable numerical models. In this work, a fully dynamical simulation model is exploited to look at effects of temperature-dependent variations in the dielectric and thermal properties of the targeted tissue on the prediction of the temperature increase and the extension of the thermally coagulated zone...
June 21, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28647269/quantum-chemical-investigation-on-photodegradation-mechanisms-of-sulfamethoxypyridazine-with-dissolved-inorganic-matter-and-hydroxyl-radical
#16
Shaheen Shah, Ce Hao
Sulfamethoxypyridazine (SMP) is one of the commonly used sulfonamide antibiotics (SAs). SAs are mainly studied to undergo triplet-sensitized photodegradation in water under natural sunlight with other coexisting aquatic environmental organic pollutants. In this work, SMP was selected as a representative of SAs. We studied the mechanisms of triplet-sensitized photodegradation of SMP and the influence of selected dissolved inorganic matter, i.e., anions (Br(-), Cl(-), and NO3(-)) and cations ions (Ca(2+), Mg(2+), and Zn(2+)) on SMP photodegradation mechanism by quantum chemical methods...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28647262/development-of-a-hybrid-photo-bioreactor-and-nanoparticle-adsorbent-system-for-the-removal-of-co2-and-selected-organic-and-metal-co-pollutants
#17
Andrea A Rocha, Christian Wilde, Zhenzhong Hu, Oleg Nepotchatykh, Yevgen Nazarenko, Parisa A Ariya
Fossil fuel combustion and many industrial processes generate gaseous emissions that contain a number of toxic organic pollutants and carbon dioxide (CO2) which contribute to climate change and atmospheric pollution. There is a need for green and sustainable solutions to remove air pollutants, as opposed to conventional techniques which can be expensive, consume additional energy and generate further waste. We developed a novel integrated bioreactor combined with recyclable iron oxide nano/micro-particle adsorption interfaces, to remove CO2, and undesired organic air pollutants using natural particles, while generating oxygen...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28647259/effect-of-current-emission-abatement-strategies-on-air-quality-improvement-in-china-a-case-study-of-baotou-a-typical-industrial-city-in-inner-mongolia
#18
Xionghui Qiu, Lei Duan, Siyi Cai, Qian Yu, Shuxiao Wang, Fahe Chai, Jian Gao, Yanping Li, Zhaoming Xu
The national Air Pollution Prevention and Control Action Plan required significant decreases in PM2.5 levels over China. To explore more effective emission abatement strategies in industrial cities, a case study was conducted in Baotou to evaluate the current national control measures. The total emissions of SO2, NOX, PM2.5 and NMVOC (non-methane volatile organic compounds) in Baotou were 211.2Gg, 156.1Gg, 28.8Gg, and 48.5Gg, respectively in 2013, and they would experience a reduction of 30.4%, 26.6%, 15.1%, and 8...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28647244/on-board-measurement-of-particle-numbers-and-their-size-distribution-from-a-light-duty-diesel-vehicle-influences-of-vsp-and-altitude
#19
Jia Liu, Yunshan Ge, Xin Wang, Lijun Hao, Jianwei Tan, Zihang Peng, Chuanzhen Zhang, Huiming Gong, Ying Huang
In this study, the particle size-resolved distribution from a China-3 certificated light-duty diesel vehicle was measured by using a portable emission measurement system (PEMS). In order to examine the influences of vehicle specific power (VSP) and high-altitude operation, measurements were conducted at 8 constant speeds, which ranged from 10 to 80km/hr at 10km/hr intervals, and two different high altitudes, namely 2200 and 3200m. The results demonstrated that the numbers of particles in all size ranges decreased significantly as VSP increased when the test vehicle was running at lower speeds (<20km/hr), while at a moderate speed (between 30 and 60km/hr), the particle number was statistically insensitive to increase VSP...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28647048/-resident-as-teacher-in-pediatric-surgery-innovation-is-overdue-in-central-europe
#20
REVIEW
S Zundel, M Stocker, P Szavay
PURPOSE: We set out to evaluate how residents in pediatric surgery learn and how they teach. We hypnotized that European residents learn as much from their peers and teach as much as their fellows worldwide, but that they receive comparably less educational training. METHODS: An online questionnaire was distributed to the participants of the combined annual meeting for German, Swiss and Austrian residents in pediatric surgery. Participants were asked whom they learn from in different workplace environments (ward, operating room, emergency department), how, when and why they adopt the role of teacher and how they were prepared for this role...
June 15, 2017: Journal of Pediatric Surgery
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