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Fengliang Wang, Yingfei Wang, Yanyan Li, Xuhui Cui, Qianxin Zhang, Zhijie Xie, Haijin Liu, Yiping Feng, Wenying Lv, Guoguang Liu
Enabling the optimal usage of solar energy is considered to be one of the most pressing challenges in the photocatalytic remediation of water resident contaminants. Herein, a single-atom dispersed Ag loaded ultrathin g-C3N4 hybrid (AgTCM/UCN) was prepared through a facile co-polymerization of dicyandiamide with silver tricyanomethanide (AgTCM) and NH4Cl, and used as a visible light driven photocatalyst for the degradation of sulfamethazine (SMT) in the presence of peroxymonosulfate (PMS). Under UV light, visible light and simulated sunlight irradiation, the AgTCM/UCN/PMS process showed higher efficiency for SMT degradation than AgTCM/UCN, UCN/PMS, and g-C3N4/PMS systems...
April 24, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
A Vargas, N Cornejo, A Camp
The Universitat Politecnica de Catalunya (UPC) and the Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) have evaluated methods based on stripping, conversion coefficients and Maximum Likelihood Estimation using Expectation Maximization (ML-EM) in calculating the H*(10) rates from photon pulse-height spectra acquired with a spectrometric LaBr3 (Ce)(1.5″ × 1.5″) detector. There is a good agreement between results of the different H*(10) rate calculation methods using the spectra measured at the UPC secondary standard calibration laboratory in Barcelona...
March 31, 2018: Applied Radiation and Isotopes
Jie Luo, Pei Xu, Peijian Cao, Hongjian Wan, Xiaonan Lv, Shengchun Xu, Gangjun Wang, Melloni N Cook, Byron C Jones, Lu Lu, Xusheng Wang
Although the link between stress and alcohol is well recognized, the underlying mechanisms of how they interplay at the molecular level remain unclear. The purpose of this study is to identify molecular networks underlying the effects of alcohol and stress responses, as well as their interaction on anxiety behaviors in the hippocampus of mice using a systems genetics approach. Here, we applied a gene co-expression network approach to transcriptomes of 41 BXD mouse strains under four conditions: stress, alcohol, stress-induced alcohol and control...
2018: Frontiers in Molecular Neuroscience
Slavisa Tomic, Marko Beko, Rui Dinis, Luís Bernardo
This work revises existing solutions for a problem of target localization in wireless sensor networks (WSNs), utilizing integrated measurements, namely received signal strength (RSS) and angle of arrival (AoA). The problem of RSS/AoA-based target localization became very popular in the research community recently, owing to its great applicability potential and relatively low implementation cost. Therefore, here, a comprehensive study of the state-of-the-art (SoA) solutions and their detailed analysis is presented...
April 19, 2018: Sensors
Nathan Bruce, Kelvin Tsun Wai Ng, Hoang Lan Vu
Temporal and spatial variations in landfill gas generations and emissions have been observed and reported by others. Real-time gas data between 2008 and 2014 from a municipal landfill located in a cold, semi-arid climate were consolidated to fit a linear-interpolated form of LandGEM. Seasonal variations in gas collection were observed in the landfill. LandGEM's default decay rate k was not applicable for this Canadian landfill due to significant overestimation (32.2% error). Optimal seasonal k and Lo collection parameters had 8...
April 18, 2018: Environmental Monitoring and Assessment
Dongsu Du, Sasa Mutic, H Harold Li, Yanle Hu
PURPOSE: To establish a mathematical model to guide prospective T2 weighted 4-dimensional magnetic resonance imaging (4DMRI) acquisition and to propose an efficient solution to expedite prospective T2 weighted 4DMRI acquisition. METHODS: Prospective T2 weighted 4DMRI acquisition was characterized by a mathematical model with 4DMRI acquisition time as the objective function and completeness of the image set, acquisition timing, image contrast, and image artifacts as the constraints...
April 16, 2018: Medical Physics
S Sruthi, Banashree Mandal, Manoj K Rohit, Goverdhan Datt Puri
Background: Moderate sedation is required for out-patient transesophageal echocardiography (TEE). Our objective was to compare the effect of Ketofol and dexmedetomidine for outpatient procedural sedation in diagnostic TEE with a hypothesis that Ketofol would be as effective as dexmedetomidine. Patients and. Methods: Fifty adult patients of age group 18-60 years with atrial septal defect, rheumatic valvular heart disease undergoing diagnostic TEE in the outpatient echocardiography laboratory were randomized into two groups, group D and group KF...
April 2018: Annals of Cardiac Anaesthesia
Min-Sung Kim, Watchalee Chuenchor, Xuemin Chen, Yanxiang Cui, Xing Zhang, Z Hong Zhou, Martin Gellert, Wei Yang
To initiate V(D)J recombination for generating the adaptive immune response of vertebrates, RAG1/2 recombinase cleaves DNA at a pair of recombination signal sequences, the 12- and 23-RSS. We have determined crystal and cryo-EM structures of RAG1/2 with DNA in the pre-reaction and hairpin-forming complexes up to 2.75 Å resolution. Both protein and DNA exhibit structural plasticity and undergo dramatic conformational changes. Coding-flank DNAs extensively rotate, shift, and deform for nicking and hairpin formation...
March 29, 2018: Molecular Cell
Piotr Sleczkowski, Ye Zhou, Supitchaya Iamsaard, Juan J de Pablo, Nathalie Katsonis, Emmanuelle Lacaze
Cholesteric liquid crystal (CLC) droplets exhibit nontrivial topological features, which are controlled by the ratio between the cholesteric pitch and the droplet radius. The radial spherical structure (RSS) is of particular interest, as it reveals an onion-like concentric organization of the cholesteric helices, leading to the expression of spherical Bragg microcavities. Using an overcrowded alkene-based unidirectional molecular motor as a dopant, we show that the topological defect structure in the droplet can be activated by illumination...
April 6, 2018: Proceedings of the National Academy of Sciences of the United States of America
Ming Xian, Jianming Kang, Shi Xu, Miles N Radford, Wenjia Zhang, Shane S Kelly, Jacob J Day
Reactive sulfur species (RSS) are biologically important molecules. Among them, hydrogen sulfide (H2S), hydrogen polysulfides (H2Sn, n>1), persulfides (RSSH), and S-nitroso hydrogen sulfide (HSNO) are believed to play regulatory roles in sulfur-related redox biology. However, these molecules are unstable and difficult to handle. Their instability is the major roadblock hindering their biological understanding. Having the access to their reliable and controllable precursors (or donors) is the prerequisite for the study of these sulfur species...
April 6, 2018: Angewandte Chemie
Pallavi Deol, Jobin Jose Kattoor, Shubhankar Sircar, Munish Batra, Kuldeep Dhama, Yashpal Singh Malik
Rotavirus D (RV-D) is gaining importance as a cause of gastroenteritis and runting and stunting syndrome (RSS) in poultry. To date, information is scarce on the molecular analysis of RV-D isolates worldwide. In this study, the VP7 gene, a major constituent of outer capsid structural protein, from a RV-D isolate (UKD48) obtained from Uttarakhand state was analyzed. Phylogenetically, the RV-D isolate was found to be closely related to a South Korean strain, and the nucleotide percent identity varied from 80.4–84...
April 4, 2018: Pathogens
Andrea Vianello, Giovanna Arcaro, Beatrice Molena, Silvia Iovino, Federico Gallan, Cristian Turato, Rosario Marchese-Ragona
Background: Amyotrophic lateral sclerosis (ALS) patients often require long-term tracheostomy ventilation (LT-TV) because of progressive ventilatory failure. Although widely used for non-invasive ventilation (NIV), passive exhalation port systems have not been gaining popularity for TV because of the possibility of carbon dioxide (CO2 ) rebreathing. The current study set out to investigate the effect of a Whisper Swivel connector in comparison to an active exhalation valve on gas exchange and symptoms in ALS patients requiring LT-TV...
February 2018: Journal of Thoracic Disease
Shulin Chen, Juan Chen, Fu Hou, Yigao Feng, Ruiqi Zhang
BACKGROUND: Spike architecture mutants in tetraploid wheat (Triticum turgidum L., 2n = 28, AABB) have a distinct morphology, with parts of the rachis node producing lateral meristems that develop into ramified spikelete (RSs) or four-rowed spikelete (FRSs). The genetic basis of RSs and FRSs has been analyzed, but little is known about the underlying developmental mechanisms of the lateral meristem. We used isobaric tags for relative and absolute quantitation (iTRAQ) to perform a quantitative proteomic analysis of immature spikes harvested from tetraploid near-isogenic lines of wheat with normal spikelete (NSs), FRSs, and RSs and investigated the molecular mechanisms of lateral meristem differentiation and development...
April 2, 2018: BMC Genomics
Jinsung Yoon, William R Zame, Amitava Banerjee, Martin Cadeiras, Ahmed M Alaa, Mihaela van der Schaar
BACKGROUND: Risk prediction is crucial in many areas of medical practice, such as cardiac transplantation, but existing clinical risk-scoring methods have suboptimal performance. We develop a novel risk prediction algorithm and test its performance on the database of all patients who were registered for cardiac transplantation in the United States during 1985-2015. METHODS AND FINDINGS: We develop a new, interpretable, methodology (ToPs: Trees of Predictors) built on the principle that specific predictive (survival) models should be used for specific clusters within the patient population...
2018: PloS One
Lorenzo Azzalini, Luciano Candilio, Soledad Ojeda, Joseph Dens, Alessio La Manna, Susanna Benincasa, Barbara Bellini, Francisco Hidalgo, Jorge Chavarría, Joren Maeremans, Giacomo Gravina, Eligio Miccichè, Guido D'Agosta, Giuseppe Venuti, Corrado Tamburino, Manuel Pan, Mauro Carlino, Antonio Colombo
We aimed to evaluate the impact of incomplete revascularization (ICR) on long-term outcomes of patients undergoing chronic total occlusion (CTO) percutaneous coronary intervention (PCI). Consecutive patients undergoing CTO PCI at 4 centers were included. Baseline SYNTAX score (bSS: low [≤ 22], intermediate [>22 and <33], high [≥33]), residual SYNTAX score (rSS: 0, >0 and ≤8, >8), and SYNTAX revascularization index (SRI: 100 × (bSS-rSS)/bSS: 100%, 50% to 99%, <50%) were calculated. The primary end point was major adverse cardiac events (MACEs; cardiac death, any myocardial infarction, any revascularization) on follow-up...
February 23, 2018: American Journal of Cardiology
Selcuk Kayir, Hulya Ulusoy, Guvenc Dogan
Background/aims Sedation is one of the most important components of intensive care unit (ICU) in patients who are mechanically ventilated at intensive care conditions. As a result of sedation and analgesia in the intensive care unit, the patient is to be awakened a comfortable and easy process. The aim of the study is to demonstrate the effects of day-time sedation interruptions in intensive care patients. Material and methods We made a retrospective review of 100 patients who were monitored, mechanically ventilated and treated at our intensive care unit between January 2008 and January 2013...
January 13, 2018: Curēus
Guofeng Gao, Lei Feng, Dong Zhang, Chenxi Song, Chenggang Zhu, Weihua Song, Yanyan Zhao, Bo Xu, Dong Yin, Kefei Dou
OBJECTIVES: The purpose of this study was to assess the prognostic significance of the residual SYNTAX score (rSS) in a large-scale cohort of consecutive percutaneous coronary intervention (PCI) patients and to analyze whether residual proximal left anterior descending coronary artery (pLAD) lesions affect the prognosis of patients with same or similar rSS levels. BACKGROUND: The rSS, measured after PCI, has been assessed as an independent predictor of long-term clinical outcome and a tool for quantification of incomplete revascularization, and still needs to be validated in various PCI populations...
February 15, 2018: Catheterization and Cardiovascular Interventions
Zorica Nikolić, Gordana Petrović, Dejana Panković, Maja Ignjatov, Dragana Marinković, Milan Stojanović, Vuk Đorđević
The aim of this study is to assess DNA degradation, DNA amplification, and GMO quantity during tofu production. Soybean seeds were spiked with Roundup Ready® soybeans (RRS) at 0.9, 2, 3 and 5% (by mass), to assess the level of RSS that would be of practical interest for threshold labelling. Real-time polymerase chain reaction (PCR) was more effective than conventional PCR in the analysis of raw soymilk, okara, boiled soymilk and tofu. The negative effect of grinding and mechanical manipulation was obvious in the okara sample prepared with 3 and 5% RRS, where GMO content was reduced to (2...
December 2017: Food Technology and Biotechnology
S Nadya J Kazzi, Sreenivas Karnati, Subhash Puthuraya, Ronald Thomas
BACKGROUND: Very low birth weight infants (VLBWI) have unexplained variation in respiratory morbidity, including respiratory distress syndrome (RDS) and bronchopulmonary dysplasia (BPD). We examined a potential association to serum 25-hydroxyvitamin D (s-25OHD) on day one. STUDY DESIGN: Prospective, observational study on 89 VLBWI (≤1250 g). S-25OHD (day one and 21) and respiratory severity score (RSS) (day one) were examined. Other respiratory morbidities including BPD were compared between infants with s-25OHD ≤ 10 ng/ml (deficient) versus >10 ng/ml (adequate)...
April 2018: Early Human Development
Azkario Rizky Pratama, Widyawan Widyawan, Alexander Lazovik, Marco Aiello
Smart spaces are those that are aware of their state and can act accordingly. Among the central elements of such a state is the presence of humans and their number. For a smart office building, such information can be used for saving energy and safety purposes. While acquiring presence information is crucial, using sensing techniques that are highly intrusive, such as cameras, is often not acceptable for the building occupants. In this paper, we illustrate a proposal for occupancy detection which is low intrusive; it is based on equipment typically available in modern offices such as room-level power-metering and an app running on workers' mobile phones...
March 6, 2018: Sensors
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