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https://www.readbyqxmd.com/read/29778083/performance-of-single-pass-and-by-pass-multi-step-multi-soil-layering-systems-for-low-c-n-ratio-polluted-river-water-treatment
#1
Cai-Jie Wei, Wei-Zhong Wu
Two kinds of hybrid two-step multi-soil-layering (MSL) systems loaded with different filter medias (zeolite-ceramsite MSL-1 and ceramsite-red clay MSL-2) were set-up for the low-(C/N)-ratio polluted river water treatment. A long-term pollutant removal performance of these two kinds of MSL systems was evaluated for 214 days. By-pass was employed in MSL systems to evaluate its effect on nitrogen removal enhancement. Zeolite-ceramsite single-pass MSL-1 system owns outstanding ammonia removal capability (24 g NH4 + -Nm-2 d-1 ), 3 times higher than MSL-2 without zeolite under low aeration rate condition (0...
May 7, 2018: Chemosphere
https://www.readbyqxmd.com/read/29778048/pathogens-constancy-harbinger-of-nosocomial-infection-cum-identification-of-resistant-genes-and-drug-designing
#2
Sana Farooq Ahmad, Ibrar Khan, Abdul Wadood, Sadiq Azam, Noor Rehman, Muhammad Waqas, Kashif Bashir, Asaf Ali Khan
Hospitals are the most prominent places for the growth and spread of bacteria which are resistant to the available antibiotics. This antibiotic resistance is due to the over and misuse of antibiotic dosages of a high-density of patient population which are in frequent interaction with inanimate items of the hospitals and the consequent risk of cross infection. Out of 1010 samples of the current study, 510 (50.49%) were culture positive of which 329 (64.5%) were Gram-positive while 181 (35.49%) Gram negative...
April 22, 2018: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/29778029/late-onset-childhood-neuronal-ceroid-lipofuscinosis-early-clinical-and-electroencephalographic-markers
#3
Lucas Beltrán, Gabriela Reyes Valenzuela, Mariana Loos, Rodrigo Vargas, Rafael Lizama, Pablo Spinsanti, Roberto Caraballo
PURPOSE: The objective of the study was to describe the initial clinical and electroencephalographic findings in children with late-infantile neuronal ceroid lipofuscinosis (LINCL). METHOD: The clinical charts of 35 patients seen between 1990 and 2016 were reviewed. The patients were divided into two groups: Group 1 (G1) consisting of 12 patients with NCL type 2 (CLN2) disease confirmed by enzymatic activity in dried blood spots on filter paper and/or genetic studies, and Group 2 (G2) consisting of 23 patients with a diagnosis of LINCL based on pathology studies by muscle biopsy...
May 15, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29778028/functional-lignocellulosic-material-for-the-remediation-of-copper-ii-ions-from-water-towards-the-design-of-a-wood-filter
#4
Selin Vitas, Tobias Keplinger, Nico Reichholf, Renato Figi, Etienne Cabane
In this study, the chemical modification of bulk beech wood is described along with its utilization as biosorbent for the remediation of copper from water. The material was prepared by esterification using anhydrides, and reaction conditions were optimized to propose a greener process, in particular by reducing the amount of solvent. This modification yields a lignocellulosic material whose native structure is preserved, with an increased amount of carboxylic groups (up to 3 mmol/g). We demonstrate that the material can remove up to 95% of copper from low concentration solutions (100- 500 ppm)...
May 9, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29777822/effects-of-global-signal-regression-and-subtraction-methods-on-resting-state-functional-connectivity-using-arterial-spin-labeling-data
#5
João Paulo Santos Silva, Luciana da Mata Mônaco, André Monteiro Paschoal, Ícaro Agenor Ferreira de Oliveira, Renata Ferranti Leoni
BACKGROUND: Arterial spin labeling (ASL) is an established magnetic resonance imaging (MRI) technique that is finding broader applications in functional studies of the healthy and diseased brain. To promote improvement in cerebral blood flow (CBF) signal specificity, many algorithms and imaging procedures, such as subtraction methods, were proposed to eliminate or, at least, minimize noise sources. Therefore, this study addressed the main considerations of how CBF functional connectivity (FC) is changed, regarding resting brain network (RBN) identification and correlations between regions of interest (ROI), by different subtraction methods and removal of residual motion artifacts and global signal fluctuations (RMAGSF)...
May 16, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29777557/are-stable-isotope-ratios-and-oscillations-consistent-in-all-baleen-plates-along-the-filtering-apparatus-validation-of-an-increasingly-used-methodology
#6
Raquel García-Vernet, Pol Sant, Gísli Víkingsson, Asunción Borrell, Alex Aguilar
RATIONALE: Baleen plates are anatomical structures composed of inert tissue that hang from the upper jaw in mysticetes. Baleen plates may differ in size and in coloration between different segments of the filtering row or between sides of the mouth. Concern has been raised that variation in baleen plate characteristics may reflect dissimilar structural composition and growth rates liable of affecting the stable isotope ratios and their oscillation patterns. METHODS: We measured stable carbon (δ13 C values) and nitrogen (δ15 N values) isotope ratios at intervals of one centimeter along the longitudinal axis of six baleen plates collected from different positions along the mouth of a fin whale...
May 18, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/29777506/an-extended-kalman-filter-for-mouse-tracking
#7
Hongjun Choi, Mingi Kim, Onseok Lee
Animal tracking is an important tool for observing behavior, which is useful in various research areas. Animal specimens can be tracked using dynamic models and observation models that require several types of data. Tracking mouse has several barriers due to the physical characteristics of the mouse, their unpredictable movement, and cluttered environments. Therefore, we propose a reliable method that uses a detection stage and a tracking stage to successfully track mouse. The detection stage detects the surface area of the mouse skin, and the tracking stage implements an extended Kalman filter to estimate the state variables of a nonlinear model...
May 19, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29777183/harmless-sea-snail-parasite-causes-mass-mortalities-in-numerous-commercial-scallop-populations-in-the-northern-hemisphere
#8
Árni Kristmundsson, Mark Andrew Freeman
Apicomplexans comprise a group of unicellular, often highly pathogenic, obligate parasites exploiting either one or two hosts to complete a full reproductive cycle. For decades, various scallop populations have suffered cyclical mass mortality events, several of which shown to be caused by apicomplexan infections. We report the first dual mollusc life cycle for an apicomplexan: a species highly pathogenic in various pectinid bivalve species, but apathogenic when infecting the common whelk as Merocystis kathae...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29776986/the-characteristics-of-vessel-lining-cells-in-normal-spleens-and-their-role-in-the-pathobiology-of-myelofibrosis
#9
Jiajing Qiu, Mohamed E Salama, Cing Siang Hu, Yan Li, Xiaoli Wang, Ronald Hoffman
The CD34- CD8α+ , sinusoid lining, littoral cells (LCs), and CD34+ CD8α- , splenic vascular endothelial cells (SVECs) represent 2 distinct cellular types that line the vessels within normal spleens and those of patients with myelofibrosis (MF). To further understand the respective roles of LCs and SVECs, each was purified from normal and MF spleens, cultured, and characterized. Gene expression profiling indicated that LCs were a specialized type of SVEC. LCs possessed a distinct gene expression profile associated with cytoskeleton regulation, cellular interactions, endocytosis, and iron transport...
May 22, 2018: Blood Advances
https://www.readbyqxmd.com/read/29775912/an-accurate-sleep-stages-classification-system-using-a-new-class-of-optimally-time-frequency-localized-three-band-wavelet-filter-bank
#10
Manish Sharma, Deepanshu Goyal, P V Achuth, U Rajendra Acharya
Sleep related disorder causes diminished quality of lives in human beings. Sleep scoring or sleep staging is the process of classifying various sleep stages which helps to detect the quality of sleep. The identification of sleep-stages using electroencephalogram (EEG) signals is an arduous task. Just by looking at an EEG signal, one cannot determine the sleep stages precisely. Sleep specialists may make errors in identifying sleep stages by visual inspection. To mitigate the erroneous identification and to reduce the burden on doctors, a computer-aided EEG based system can be deployed in the hospitals, which can help identify the sleep stages, correctly...
May 10, 2018: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29775505/visualization-and-quantitative-detection-of-friction-force-by-self-organized-organic-layered-composites
#11
Hideto Terada, Hiroaki Imai, Yuya Oaki
Visualization and quantitative detection of external stimuli are significant challenges in materials science. Quantitative detection of friction force, a mechanical stress, is not easily achieved using conventional stimuli-responsive materials. Here, the quantitative detection of friction force is reported, such as the strength and accumulated ammount, from the visible color of organic layered composites consisting of polydiacetylene (PDA) and organic amines without an excitation light source. The composites of the layered diacetylene monomer crystal and interlayer organic amine are synthesized through self-organization from the precursor solution...
May 18, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29775363/charge-transfer-processes-in-warm-dense-matter-selective-spectral-filtering-for-laser-accelerated-ion-beams
#12
J Braenzel, M D Barriga-Carrasco, R Morales, M Schnürer
We investigate, both experimentally and theoretically, how the spectral distribution of laser accelerated carbon ions can be filtered by charge exchange processes in a double foil target setup. Carbon ions at multiple charge states with an initially wide kinetic energy spectrum, from 0.1 to 18 MeV, were detected with a remarkably narrow spectral bandwidth after they had passed through an ultrathin and partially ionized foil. With our theoretical calculations, we demonstrate that this process is a consequence of the evolution of the carbon ion charge states in the second foil...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29775172/septic-and-tumor-thrombosis-caught-by-inferior-vena-cava-filters-and-demonstrated-on-fdg-pet-ct
#13
Yiyan Liu
No abstract text is available yet for this article.
May 1, 2018: Vascular Medicine
https://www.readbyqxmd.com/read/29775140/estimation-of-the-characteristics-with-hydrothermal-carbonisation-temperature-on-poultry-slaughterhouse-wastes
#14
Ho Kim, Seong Kuk Han, Eunhye Song, Seyong Park
This study is an assessment of the hydrothermal carbonisation of poultry slaughterhouse wastes sludge for the solid recovered fuel. The effects of hydrothermal carbonisation were evaluated by varying the reaction temperatures in the range of 170 °C-220 °C. After hydrothermal carbonisation was completed, the capillary suction time, time to filter, and particle size decreased by ranges of 170.4 to 25.9 s, 40 to 7.0 s, and 220 to 98 um, respectively, with increasing hydrothermal carbonisation temperature...
May 1, 2018: Waste Management & Research
https://www.readbyqxmd.com/read/29774618/direct-laser-writing-of-graphene-made-from-chemical-vapor-deposition-for-flexible-integratable-micro-supercapacitors-with-ultrahigh-power-output
#15
Jianglin Ye, Huabing Tan, Shuilin Wu, Kun Ni, Fei Pan, Jie Liu, Zhuchen Tao, Yan Qu, Hengxing Ji, Patrice Simon, Yanwu Zhu
High-performance yet flexible micro-supercapacitors (MSCs) hold great promise as miniaturized power sources for increasing demand of integrated electronic devices. Herein, this study demonstrates a scalable fabrication of multilayered graphene-based MSCs (MG-MSCs), by direct laser writing (DLW) of stacked graphene films made from industry-scale chemical vapor deposition (CVD). Combining the dry transfer of multilayered CVD graphene films, DLW allows a highly efficient fabrication of large-areal MSCs with exceptional flexibility, diverse planar geometry, and capability of customer-designed integration...
May 17, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29774484/effect-of-post-filter-anticoagulation-on-mortality-in-patients-with-cancer-associated-pulmonary-embolism
#16
Jieun Kang, Seon Ok Kim, Yeon-Mok Oh, Sang-Do Lee, Jae Seung Lee
BACKGROUND: Malignancy is associated with an increased risk of venous thromboembolism. Inferior vena cava filters are a viable alternative when anticoagulation is infeasible because of the risk of bleeding. Although the current guidelines recommend that all patients with a vena cava filter be treated with anticoagulation treatment when the risk of bleeding is reduced, studies concerning the role of concomitant anticoagulation after vena cava filter insertion in high-risk patients are scarce...
May 17, 2018: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29774433/dynamic-and-thermodynamic-crossover-scenarios-in-the-kob-andersen-mixture-insights-from-multi-cpu-and-multi-gpu-simulations
#17
Daniele Coslovich, Misaki Ozawa, Walter Kob
The physical behavior of glass-forming liquids presents complex features of both dynamic and thermodynamic nature. Some studies indicate the presence of thermodynamic anomalies and of crossovers in the dynamic properties, but their origin and degree of universality is difficult to assess. Moreover, conventional simulations are barely able to cover the range of temperatures at which these crossovers usually occur. To address these issues, we simulate the Kob-Andersen Lennard-Jones mixture using efficient protocols based on multi-CPU and multi-GPU parallel tempering...
May 17, 2018: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/29774426/plant-physical-and-chemical-defence-variation-along-elevation-gradients-a-functional-trait-based-approach
#18
Alan Kergunteuil, Patrice Descombes, Gaetan Glauser, Loïc Pellissier, Sergio Rasmann
Predicting variation in plant functional traits related to anti-herbivore defences remains a major challenge in ecological research, considering that multiple traits have evolved in response to both abiotic and biotic conditions. Therefore, understanding variation in plant anti-herbivore defence traits requires studying their expression along steep environmental gradients, such as along elevation, where multiple biotic and abiotic factors co-vary. We expand on plant defence theory and propose a novel conceptual framework to address the sources of variations of plant resistance traits at the community level...
May 17, 2018: Oecologia
https://www.readbyqxmd.com/read/29774235/the-redox-filter-beneath-magmatic-orogens-and-the-formation-of-continental-crust
#19
Ming Tang, Monica Erdman, Graham Eldridge, Cin-Ty A Lee
The two most important magmatic differentiation series on Earth are the Fe-enriching tholeiitic series, which dominates the oceanic crust and island arcs, and the Fe-depleting calc-alkaline series, which dominates the continental crust and continental arcs. It is well known that calc-alkaline magmas are more oxidized when they erupt and are preferentially found in regions of thick crust, but why these quantities should be related remains unexplained. We use the redox-sensitive behavior of europium (Eu) in deep-seated, plagioclase-free arc cumulates to directly constrain the redox evolution of arc magmas at depth...
May 2018: Science Advances
https://www.readbyqxmd.com/read/29774020/high-diversity-of-myocyanophage-in-various-aquatic-environments-revealed-by-high-throughput-sequencing-of-major-capsid-protein-gene-with-a-new-set-of-primers
#20
Weiguo Hou, Shang Wang, Brandon R Briggs, Gaoyuan Li, Wei Xie, Hailiang Dong
Myocyanophages, a group of viruses infecting cyanobacteria, are abundant and play important roles in elemental cycling. Here we investigated the particle-associated viral communities retained on 0.2 μm filters and in sediment samples (representing ancient cyanophage communities) from four ocean and three lake locations, using high-throughput sequencing and a newly designed primer pair targeting a gene fragment (∼145-bp in length) encoding the cyanophage gp23 major capsid protein (MCP). Diverse viral communities were detected in all samples...
2018: Frontiers in Microbiology
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