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https://www.readbyqxmd.com/read/29793185/production-of-biogas-methane-and-hydrogen-from-anaerobic-digestion-of-hemicellulosic-hydrolysate-generated-in-the-oxidative-pretreatment-of-coffee-husks
#1
Lívia Caroline Dos Santos, Oscar Fernando Herrera Adarme, Bruno Eduardo Lobo Baêta, Leandro Vinícius Alves Gurgel, Sérgio Francisco de Aquino
Ozone pretreatment of coffee husks (CH) was evaluated to generate hydrolysates for biogas production and to preserve cellulose of the solid phase for 2G ethanol production. Pretreatment variables included liquid-to-solid ratio (LSR), pH and specific applied ozone load (SAOL). Considering single-stage anaerobic digestion (AD), the highest methane production (36 NmL CH4 /g CH) was achieved with the hydrolysate generated in the experiment using LSR 10 mL/g, pH 11 and SAOL 18.5 mg O3 /g CH, leading to 0...
May 21, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29793172/on-the-autonomous-motion-of-active-drops-or-bubbles
#2
Yuri S Ryazantsev, Manuel G Velarde, Eduardo Guzman, Ramón G Rubio, Francisco Ortega, Juan-Jose Montoya
Thermo-capillary stresses on the surface of a drop can be the result of a non-isothermal surface chemical conversion of a reactant dissolved in the host fluid. The strength of heat production (with e.g. absorption) on the surface is ruled by the diffusion of the reactant and depends on the state of motion of the drop. Such thermo-capillary stresses can provoke the motion of the drop or its motionless state in the presence of an external body force. If in the balance of forces, including indeed viscous drag, the net resultant force vanishes there is the possibility of autonomous motion with constant velocity of the drop...
May 19, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29793046/validation-of-the-revised-pam-score-in-patients-with-aml-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#3
Jan M Middeke, Frederike Kollinger, Henning Baldauf, Friedrich Stölzel, Martin Wermke, Malte von Bonin, Katja Sockel, Cornelia S Link, Raphael Teipel, Christoph Röllig, Christian Thiede, Uwe Platzbecker, Gerhard Ehninger, Martin Bornhäuser, Johannes Schetelig
PURPOSE: Despite recent advances, allogeneic hematopoietic stem cell transplantation (alloHSCT) continues to be accompanied by a high rate of morbidity and mortality. Several scores have been developed to predict outcome after HSCT. The PAM score has been recently revised, and utilizes information on patient age, donor type, disease risk, cytomegalovirus (CMV) serostatus of patients and donors, and the forced expiratory volume in one second (FEV1). The aim of this study was to analyze the predictive power of the PAM score in an independent, large cohort of acute myeloid leukemia (AML) patients...
May 21, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29793030/sorption-of-perfluoroalkyl-substances-pfass-to-an-organic-soil-horizon-effect-of-cation-composition-and-ph
#4
Hugo Campos Pereira, Malin Ullberg, Dan Berggren Kleja, Jon Petter Gustafsson, Lutz Ahrens
Accurate prediction of the sorption of perfluoroalkyl substances (PFASs) in soils is essential for environmental risk assessment. We investigated the effect of solution pH and calculated soil organic matter (SOM) net charge on the sorption of 14 PFASs onto an organic soil as a function of pH and added concentrations of Al3+ , Ca2+ and Na+ . Often, the organic C-normalized partitioning coefficients (KOC ) showed a negative relationship to both pH (Δlog KOC /ΔpH = -0.32 ± 0.11 log units) and the SOM bulk net negative charge (Δlog KOC  = -1...
May 4, 2018: Chemosphere
https://www.readbyqxmd.com/read/29792740/colloid-adenocarcinoma-of-the-lung-ct-and-pet-ct-findings-in-seven-patients
#5
Han Kyul Kim, Joungho Han, Teri J Franks, Kyung Soo Lee, Tae Jung Kim, Joon Young Choi, Jaeil Zo
OBJECTIVE: We aimed to assess CT and 18 F-FDG PET/CT findings of colloid adenocarcinoma of the lung in seven patients. MATERIALS AND METHODS: From 2010 to 2017, seven patients with surgically proven colloid adenocarcinoma of the lung were identified. CT (both enhanced and unenhanced) and PET/CT findings were analyzed, and the imaging features were compared with histopathologic reports. Clinical and demographic features were also analyzed. RESULTS: In all cases except one, tumors showed low attenuation on unenhanced CT scans, ranging in attenuation from -16...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29792391/role-of-neutrophils-in-equine-asthma
#6
Benjamin Uberti, Gabriel Morán
Neutrophilic bronchiolitis is the primary lesion in asthma-affected horses. Neutrophils are key actors in host defense, migrating toward sites of inflammation and infection, where they act as early responder cells toward external insults. However, neutrophils can also mediate tissue damage in various non-infectious inflammatory processes. Within the airways, these cells likely contribute to bronchoconstriction, mucus hypersecretion, and pulmonary remodeling by releasing pro-inflammatory mediators, including the cytokines interleukin (IL)-8 and IL-17, neutrophil elastase, reactive oxygen species (ROS), and neutrophil extracellular traps (NETs)...
May 24, 2018: Animal Health Research Reviews
https://www.readbyqxmd.com/read/29792331/predictable-particle-engineering-programming-the-energy-level-carrier-generation-and-conductivity-of-core-shell-particles
#7
Conghui Yuan, Tong Wu, Jie Mao, Ting Chen, Yuntong Li, Min Li, Yiting Xu, Birong Zeng, Weiang Luo, Lingke Yu, Gaofeng Zheng, Lizong Dai
Core-shell structures are of particular interest in the development of advanced composite materials as they can efficiently bring different components together at nanoscale. The advantage of this structure greatly relies on the crucial design of both core and shell, thus achieving an inter-component synergistic effect. In this report, we show that decorating semiconductor nanocrystals with a boronate polymer shell can easily achieve programmable core-shell interactions. Taking ZnO and anatase TiO2 nanocrystals as inner core examples, the effective core-shell interactions can narrow the band gap of semiconductor nanocrystals, change the HOMO and LUMO levels of boronate polymer shell and significantly improve the carrier density of core-shell particles...
May 24, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29791833/maternal-and-postnatal-high-fat-diets-with-high-6-3-ratios-affect-the-reproductive-performance-of-male-offspring-in-the-mouse
#8
S Bianconi, G Stutz, M R Solís, A C Martini, L M Vincenti, M F Ponzio, E Luque, C Avendaño, P Quiroga, M E Santillán
High-fat diets (HFDs) are an acknowledged risk factor for male subfertility, but the underlying mechanisms remain unclear. In the present study we compared the effects of two HFDs with different ω6:ω3 ratios, one enriched with soy oil (SOD; ω6:ω3=9.62) and another enriched with sunflower oil (SFOD; ω6:ω3=51.55), with those of a commercial diet (CD; ω6:ω3=19.87), supplied from pregnancy to adulthood, on morphometric parameters and reproductive performance in adult male mice (recommended ω6:ω3 for rodents=1-6)...
May 24, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29791781/a-dual-role-of-mir-22-in-rhabdomyolysis-induced-acute-kidney-injury-aki
#9
Susanne Mathia, Lucas J Rudigier, Mumtaz Kasim, Karin M Kirschner, Pontus B Persson, Kai-Uwe Eckardt, Christian Rosenberger, Michael Fähling
AIM: In acute kidney injury (AKI) regions of the kidney are hypoxic. However, for reasons yet unknown, adaptation to hypoxia through hypoxia inducible factor (HIF) is limited. Here we studied miR-22, a potential HIF repressor, in normal kidneys, as well as in rhabdomyolysis-induced AKI, a condition where miR-22 is up-regulated. METHODS: AKI in mice was provoked by IM injection of glycerol. Tissue homogenates were processed to determine the levels of candidate RNAs and proteins, as well as global gene expression profiles...
May 23, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29791474/growth-differentiation-factor-15-levels-and-the-risk-of-contrast-induced-nephropathy-in-patients-with-acute-myocardial-infarction-undergoing-percutaneous-coronary-intervention-a-retrospective-observation-study
#10
Ling Sun, Xuejun Zhou, Jianguang Jiang, Xuan Zang, Xin Chen, Haiyan Li, Haitao Cao, Qingjie Wang
AIMS: To investigate the association between growth differentiation factor-15 (GDF-15) and contrast-induced nephropathy (CIN) in patients with acute myocardial infarction (AMI) undergoing percutaneous coronary intervention (PCI). METHODS: A total of 311 patients with AMI were studied retrospectively. All patients were divided into two groups according to the occurrence of CIN after PCI. Baseline clinical data were compared between two groups. Multivariate logistic regression analysis was used to identify the risk factors for CIN...
2018: PloS One
https://www.readbyqxmd.com/read/29791462/using-within-day-hive-weight-changes-to-measure-environmental-effects-on-honey-bee-colonies
#11
William G Meikle, Niels Holst, Théotime Colin, Milagra Weiss, Mark J Carroll, Quinn S McFrederick, Andrew B Barron
Patterns in within-day hive weight data from two independent datasets in Arizona and California were modeled using piecewise regression, and analyzed with respect to honey bee colony behavior and landscape effects. The regression analysis yielded information on the start and finish of a colony's daily activity cycle, hive weight change at night, hive weight loss due to departing foragers and weight gain due to returning foragers. Assumptions about the meaning of the timing and size of the morning weight changes were tested in a third study by delaying the forager departure times from one to three hours using screen entrance gates...
2018: PloS One
https://www.readbyqxmd.com/read/29791419/-endoscopic-treatment-of-rectal-neuroendocrine-tumors-multicentre-study-in-peru
#12
Fernando Palacios Salas, Edson Guzmán Calderón, Estefanía Liza Baca, Diana Lévano Félix, Luygy Zavaleta Jara, Harold Benites Goñi
INTRODUCTION: The incidental detection of rectal neuroendocrine tumors (NET) has increased but there is no proper consensus about treatment. OBJECTIVE: Evaluate the efficacy and safety of endoscopic treatment for rectal NET less than 20 mm, with emphasis in "standardized treatment". MATERIAL AND METHODS: From January 2012 to April 2016, we included patients with rectal NET less than 20 mm resected by conventional EMR, EMR-B and ESD...
January 2018: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/29791207/activation-of-trpv4-stimulates-transepithelial-ion-flux-in-a-porcine-choroid-plexus-cell-line
#13
Daniel Preston, Stefanie Simpson, Dan Halm, Alexandra Hochstetler, Christian Schwerk, Horst Schroten, Bonnie L Blazer-Yost
The choroid plexus (CP) epithelium plays a major role in the production of cerebrospinal fluid (CSF). A polarized cell line, the porcine choroid plexus - Riems (PCP-R) line, that exhibits many of the characteristics of the native epithelium, was used to study the effect of activation of the transient receptor potential vanilloid 4 (TRPV4) cation channel found in the PCP-R cells as well as in the native epithelium. Ussing-style electrophysiological experiments showed that activation of TRPV4 with a specific agonist, GSK 1016790A, resulted in an immediate increase in both transepithelial ion flux and conductance...
May 23, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29791137/the-chemistry-of-lyophilized-blood-products
#14
Joseph Fernandez-Moure, Nuzhat Maisha, Erin B Lavik, Jeremy Cannon
With the development of new biologics and bioconjugates, storage and preservation have become more critical than ever before. Lyophilization is a method of cell and protein preservation by removing a solvent such as water from a substance followed by freezing. This technique has been used in the past and still holds promise for overcoming logistic challenges in safety net hospitals with limited blood banking resources, austere environments such as combat, and in mass casualty situations where existing resources may be outstripped...
May 23, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29790951/internet-use-and-preventive-health-behaviors-among-couples-in-later-life-evidence-from-the-health-and-retirement-study
#15
Sangbo Nam, Sae Hwang Han, Megan Gilligan
Background and Objectives: The aim of this study was to examine the link between internet use and preventive health behaviors. We focused on couples to examine whether there were cross-partner associations between internet use and preventive health behaviors. Research Design and Methods: The data for this study came from the 2010 and 2012 waves of the Health and Retirement Study and the sample consisted of 5,143 pairs of coupled-individuals. Preventive health behaviors included cancer screenings (mammogram and prostate tests), cholesterol tests, and flu shots...
May 22, 2018: Gerontologist
https://www.readbyqxmd.com/read/29790911/panda-view-an-easy-to-use-tool-for-statistical-analysis-and-visualization-of-quantitative-proteomics-data
#16
Cheng Chang, Kaikun Xu, Chaoping Guo, Jinxia Wang, Qi Yan, Jian Zhang, Fuchu He, Yunping Zhu
Summary: Compared with the numerous software tools developed for identification and quantification of -omics data, there remains a lack of suitable tools for both downstream analysis and data visualization. To help researchers better understand the biological meanings in their -omics data, we present an easy-to-use tool, named PANDA-view, for both statistical analysis and visualization of quantitative proteomics data and other -omics data. PANDA-view contains various kinds of analysis methods such as normalization, missing value imputation, statistical tests, clustering and principal component analysis, as well as the most commonly-used data visualization methods including an interactive volcano plot...
May 22, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29790864/implementing-comprehensive-primary-care-referral-tracking-in-a-patient-centered-medical-home
#17
Jenny Spahr, Jennifer Coddington, Nancy Edwards, Sara McComb
The Patient-Centered Medical Home care model emphasizes efficient, coordinated care distributed among interdisciplinary team members. One key function to care coordination is referral/test tracking. This study evaluated the referral practices in a nurse-managed Patient-Centered Medical Home primary care clinic. The major findings corroborate the need for a well-organized referral-tracking system that is centralized and contains safety nets to reduce the number of delayed or missed referrals.
July 2018: Journal of Nursing Care Quality
https://www.readbyqxmd.com/read/29790857/attenuation-correction-for-brain-pet-imaging-using-deep-neural-network-based-on-dixon-and-zte-mr-images
#18
Kuang Gong, Jaewon Yang, Kyungsang Kim, Georges El Fakhri, Youngho Seo, Quanzheng Li
Positron Emission Tomography (PET) is a functional imaging modality widely used in neuroscience studies. To obtain meaningful quantitative results from PET images, attenuation correction is necessary during image reconstruction. For PET/MR hybrid systems, PET attenuation is challenging as Magnetic Resonance (MR) images do not reflect attenuation coefficients directly. To address this issue, we present deep neural network methods to derive the continuous attenuation coefficients for brain PET imaging from MR images...
May 23, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29790837/modulation-of-spinal-motor-networks-by-astrocyte-derived-adenosine-is-dependent-on-d1-like-dopamine-receptor-signalling
#19
David Acton, Matthew J Broadhead, Gareth Brian Miles
Astrocytes modulate many neuronal networks, including spinal networks responsible for the generation of locomotor behaviour. Astrocytic modulation of spinal motor circuits involves release of ATP from astrocytes, hydrolysation of ATP to adenosine, and subsequent activation of neuronal A1 adenosine receptors (A1Rs). The net effect of this pathway is a reduction in the frequency of locomotor-related activity. Recently, it was proposed that A1Rs modulate burst frequency by blocking the D1-like dopamine receptor (D1LR) signalling pathway; however, adenosine also modulates ventral horn circuits by dopamine-independent pathways...
May 23, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29790336/importance-of-dermal-absorption-of-polycyclic-aromatic-hydrocarbons-derived-from-barbecue-fumes
#20
Jia-Yong Lao, Shan-Yi Xie, Chen-Chou Wu, Lian-Jun Bao, Shu Tao, Eddy Y Zeng
Despite the ubiquity and carcinogenicity of polycyclic aromatic hydrocarbons (PAHs), their dermal absorption for the general population has not been adequately addressed. Aiming to verify the importance of dermal absorption of PAHs, barbecue (BBQ) in Guangzhou, China was chosen as a case study. Urine samples were collected and analyzed for nine hydroxyl (OH)-PAHs. Air, food, and cotton clothing samples were analyzed for 16 PAHs. Dietary exposure was the dominant exposure route with the greatest amounts of OH-PAH excretion and PAH intake...
May 23, 2018: Environmental Science & Technology
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