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https://www.readbyqxmd.com/read/28636794/differences-and-similarities-between-bronchopulmonary-dysplasia-and-asthma-in-schoolchildren
#1
Björn Nordlund, Anna James, Christina Ebersjö, Gunilla Hedlin, Eva B Broström
BACKGROUND: The long-term respiratory characteristics of ex-preterm children with bronchopulmonary dysplasia (BPD) are not established. The objective of this study was to describe hallmarks of BPD at school age in comparison to children with atopic asthma. METHODS: This study was a cross-sectional descriptive comparative study in a hospital-based setting. Thirty schoolchildren diagnosed with BPD (10.4 years/born at 26.6 weeks' gestation) and 30 age- and sex-matched children with asthma and sensitized to airborne allergens (IgE >0...
June 21, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28634368/preparation-and-properties-of-a-hyperbranch-structured-polyamine-adsorbent-for-carbon-dioxide-capture
#2
Hui He, Yajie Hu, Shuixia Chen, Linzhou Zhuang, Beibei Ma, Qinghua Wu
A fibrous adsorbent with amino-terminated hyperbranch structure (PP-AM-HBP-NH2) was prepared by grafting hyperbranched polyamine (HBP-NH2) onto the acrylamide-modified polypropylene (PP) fibers. The grafting of AM on PP fibers provided the active sites for introducing HBP-NH2 onto the PP fibers. This kind of "grafting to" procedure to synthesize hyperbranch-structured fiber could overcome the disadvantages of stepwise growth procedure, avoiding the complicated synthesis process and the requirement of strict experimental conditions...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28631125/upgraded-modified-forms-of-bituminous-coal-for-the-removal-of-safranin-t-dye-from-aqueous-solution
#3
Mohamed Shaban, Mostafa R Abukhadra, Mohamed G Shahien, Aftab Aslam Parwaz Khan
Natural bituminous coal was used as a precursor in the synthesis of different modified products. The modification of coal was performed by treating it with nitric acid (N-coal), coating its surface by zinc oxide nanoparticles (Z-coal), and converting it into porous graphite (PG). The effect of modification processes on the structures, morphologies, and optical properties was followed by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectrum (FT-IR), and UV/VIS spectrophotometer analysis...
June 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28630898/polymeric-lithography-editor-editing-lithographic-errors-with-nanoporous-polymeric-probes
#4
Pradeep Ramiah Rajasekaran, Chuanhong Zhou, Mallika Dasari, Kay-Obbe Voss, Christina Trautmann, Punit Kohli
A new lithographic editing system with an ability to erase and rectify errors in microscale with real-time optical feedback is demonstrated. The erasing probe is a conically shaped hydrogel (tip size, ca. 500 nm) template-synthesized from track-etched conical glass wafers. The "nanosponge" hydrogel probe "erases" patterns by hydrating and absorbing molecules into a porous hydrogel matrix via diffusion analogous to a wet sponge. The presence of an interfacial liquid water layer between the hydrogel tip and the substrate during erasing enables frictionless, uninterrupted translation of the eraser on the substrate...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28629049/study-of-the-physicochemical-interactions-between-thermomyces-lanuginosus-lipase-and-silica-based-supports-and-their-correlation-with-the-biochemical-activity-of-the-biocatalysts
#5
Ingrid Dayana Soto, Sindy Escobar, Monica Mesa
The interactions between Thermomyces lanuginosus lipase (TLL) and phenyl silica-based supports affect the immobilization mechanisms and their catalytic behavior. The modulation of phenyl groups density on the silica surface and porous characteristics were determined by TGA, FTIR, (29)Si NMR and N2 adsorption porosimetry. The correlation of the affinity constant and maximum adsorption capacity with the lixiviation results allowed determine differences in the enzyme adsorption mechanism in function of the immobilization pH and phenyl groups density...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28627564/methanol-methanol-and-methanol-water-systems-the-intermolecular-interactions-controlling-the-transition-from-small-clusters-to-the-liquid-phase
#6
Margarita Albertí, Anna Amat, Antonio Aguilar, Fernando Pirani
The present paper focuses on the characterization of the properties of methanol and water molecules in gas and liquid environments. A force field for methanol-methanol and methanol-water interactions, useful to be applied in Molecular Dynamics (MD) simulations, is proposed. The electrostatic interaction contributions, arising from permanent charge and/or from anisotropic charge distributions originating from permanent electric multipoles (Vel), different in gas and in liquid phases, are combined with the non electrostatic ones (Vnel), defined by means of Improved Lennard-Jones (ILJ) functions [F...
June 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28626789/dataset-on-the-electronic-and-thermal-transport-properties-of-quaternary-compounds-of-pbte-0-95-x-pbse-x-pbs-0-05
#7
Dianta Ginting, Chan-Chieh Lin, Lydia Rathnam, Junpil Hwang, Woochul Kim, Rabih Al Rahal Al Orabi, Jong-Soo Rhyee
The data presented in this article are related to the research article entitled "High thermoelectric performance in pseudo quaternary compounds of (PbTe)0.95-x (PbSe)x(PbS)0.05 by simultaneous band convergence and nano precipitation" (Ginting et al., 2017) [1]. We measured electrical and thermal transport properties such as temperature-dependent Hall carrier density nH , Hall mobility μH , thermal diffusivity D, heat capacity Cp , and power factor S(2)σ in (PbTe)0.95-x (PbSe)x(PbS)0.05 (x=0.0, 0.05, 0.10, 0...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28624722/age-related-differences-in-the-response-of-the-l5-s1-intervertebral-disc-to-spinal-traction
#8
Ulrike H Mitchell, Paul F Beattie, Jennifer Bowden, Robert Larson, Hanuan Wang
BACKGROUND: Lumbar traction is a common treatment for low back pain; however its mechanisms of action are poorly understood. It has been hypothesized that a key effect of lumbar traction is its capacity to influence fluid movement within the intervertebral disc (IVD). OBJECTIVES: To determine differences in the apparent diffusion coefficient (ADC) obtained with lumbar diffusion-weighted imaging (DWI) of the L5-S1 IVD before, and during, the application of lumbar traction...
June 9, 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28622707/coordination-between-leaf-co2-diffusion-and-rubisco-properties-allows-maximizing-photosynthetic-efficiency-in-limonium-species
#9
Jeroni Galmés, Arántzazu Molins, Jaume Flexas, Miquel À Conesa
High photosynthetic efficiency intrinsically demands tight coordination between traits related to CO2 diffusion capacity and leaf biochemistry. Although this coordination constitutes the basis of existing mathematical models of leaf photosynthesis, it has been barely explored among closely related species, which could reveal rapid adaptation clues in the recent past. With this aim, we characterized the photosynthetic capacity of twelve species of Limonium, possessing contrasting Rubisco catalytic properties, grown under optimal (WW) and extreme drought conditions (WD)...
June 16, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28621546/application-of-a-novel-phyco-composite-biosorbent-for-biotreatment-of-aqueous-medium-polluted-with-manganese-ions
#10
Fatih Deniz, Elif Tezel Ersanli
A composite phyco-biomass including four different marine macroalgae species (Chaetomorpha sp., Polysiphonia sp., Ulva sp. and Cystoseira sp.) was evaluated as a novel biosorbent for the biosorption of manganese ions from aqueous solution. The experimental studies were performed to optimize the operational factors including solution pH, biosorbent amount, initial manganese concentration and reaction time in a batch mode biosorption system. The removal yield of the biosorbent for manganese ions increased with increasing pH, manganese ion concentration and reaction time while it decreased as the biosorbent dose increased...
June 16, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28621544/interrogating-charge-storage-on-redox-active-colloids-via-combined-raman-spectroscopy-and-scanning-electrochemical-microscopy
#11
Zachary T Gossage, Noah Benjamin Schorr, Kenneth Hernandez-Burgos, Jingshu Hui, Burton H Simpson, Elena C Montoto, Joaquin Rodriguez-Lopez
Redox active colloids (RACs) are dispersible, cross-linked polymeric materials that incorporate a high concentration of redox-active motifs, making them attractive for next-generation size-exclusion redox flow batteries. In order to tap into their full potential for energy storage, it is essential to understand their internal charge mobility, capacity, and cyclability. Here we focus on using a combined suite of Raman spectroscopy and scanning electrochemical microscopy (SECM) tools for evaluating three important parameters that govern charge storage in viologen-RACs: their intra-particle redox active concentration, their reduction/oxidation mechanism, and their charge transfer rate...
June 16, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28619955/pulmonary-artery-to-aorta-ratio-and-risk-of-all-cause-mortality-in-the-general-population-the-rotterdam-study
#12
Natalie Terzikhan, Daniel Bos, Lies Lahousse, Lennard Wolff, Katia M C Verhamme, Maarten J G Leening, Janine F Felix, Henning Gall, Hossein A Ghofrani, Oscar H Franco, M Arfan Ikram, Bruno H Stricker, Aad van der Lugt, Guy Brusselle
A pulmonary artery to aorta ratio (PA:A) >1 is a proxy of pulmonary hypertension. It is not known whether this measure carries prognostic information in the general population and in individuals with chronic obstructive pulmonary disease (COPD).Between 2003 and 2006, 2197 participants from the population-based Rotterdam Study (mean±sd age 69.7±6.7 years; 51.3% female), underwent cardiac computed tomography (CT) scanning with PA:A quantification, defined as the ratio between the diameters of the pulmonary artery and the aorta...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28619640/potential-of-amino-riched-nano-structured-mnfe2o4-cellulose-for-biosorption-of-toxic-cr-vi-modeling-kinetic-equilibrium-and-comparing-studies
#13
Marjan Ghanbarian, Ramin Nabizadeh, Simin Nasseri, Farzaneh Shemirani, Amir Hossein Mahvi, Mostafa Hossein Beyki, Alireza Mesdaghinia
In this work, amine riched MnFe2O4-cellulose was employed to remove toxic Cr (VI). To find out the optimum conditions R (3.3.1) software was used. The results of Cr (VI) adsorption onto three-step adsorbents were compared by interpreting kinetic and isotherm studies. The kinetic studies reveal that the adsorption of Cr (VI) onto cellulose and magnetic cellulose (MC) followed pseudo-first order model whereas the adsorption of Cr (VI) onto amine modified cellulose (AFMC) followed pseudo-second order kinetic model...
June 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28615970/changes-in-pulmonary-function-tests-in-breast-carcinoma-patients-treated-with-locoregional-post-mastectomy-radiotherapy-results-of-a-pilot-study
#14
Eyad Fawzi AlSaeed, Faisal Khalid Balaraj, Mutahir A Tunio
BACKGROUND: The aim of present pilot study was to evaluate the changes in pulmonary function tests (PFTs) after locoregional post-mastectomy radiotherapy (PMRT) in breast cancer patients. MATERIALS AND METHODS: Twenty consecutive patients with histopathologically confirmed breast carcinoma stages T1-T4, N1-N2, who were treated with modified radical mastectomy with neoadjuvant or adjuvant chemotherapy underwent PFTs, including forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), forced expiratory flow at 50%, and peak expiratory flow rate, maximum mid expiratory flow (MMEF25-75), maximal oxygen consumption (VO2max), and carbon monoxide diffusing capacity (DLCO) before, at 30 days, and at 90 days after locoregional PMRT...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28613912/molecular-and-immune-biomarkers-in-acute-respiratory-distress-syndrome-a-perspective-from-members-of-the-pulmonary-pathology-society
#15
Vera Luiza Capelozzi, Timothy Craig Allen, Mary Beth Beasley, Philip T Cagle, Don Guinee, Lida P Hariri, Aliya N Husain, Deepali Jain, Sylvie Lantuejoul, Brandon T Larsen, Ross Miller, Mari Mino-Kenudson, Mehrad Mitra, Kirtee Raparia, Anja Roden, Frank Schneider, Lynette M Sholl, Maxwell Lawrence Smith
Acute respiratory distress syndrome (ARDS) is a multifactorial syndrome with high morbidity and mortality rates, characterized by deficiency in gas exchange and lung mechanics that lead to hypoxemia, dyspnea, and respiratory failure. Histologically, ARDS is characterized by an acute, exudative phase, combining diffuse alveolar damage and noncardiogenic edema, followed by a later fibroproliferative phase. Despite an enhanced understanding of ARDS pathogenesis, the capacity to predict the development of ARDS and to risk-stratify patients with the disease remains limited...
June 14, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28613813/pillared-layer-metal-organic-frameworks-for-improved-lithium-ion-storage-performance
#16
Teng Gong, Xiaobing Lou, En-Qing Gao, Bingwen Hu
Recently, more and more metal-organic frameworks (MOFs) have been directly used as anodic materials in lithium-ion batteries, but judicious design or choice of MOFs are still challenging for lack of structural-property knowledge. We proposed a pillared-layer strategy to achieve improved Li-storage performance. Four Mn(II) and Co(II) MOFs with mixed azide and carboxylate ligands were studied to illustrate the strategy. In these 3D MOFs, layers (1, 3 and 4) or chains (2) with short bridges are linked by long organic spacers...
June 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28612760/effects-of-growth-and-aging-on-the-reference-values-of-pulmonary-nitric-oxide-dynamics-in-healthy-subjects
#17
Marieann Högman, Alexandra Thornadtsson, Per Liv, Thong Hua-Huy, Anh-Tuan Dinh-Xuan, Ellen Tufvesson, Holger Dressel, Christer Janson, Kirsi Koskela, Panu Oksa, Riitta Sauni, Jukka Uitti, Eeva Moilanen, Lauri Lehtimäki
The lung just like all other organs is affected by age. The lung matures by the age of 20 and age related changes starts around middle age, 40-50 years. Exhaled nitric oxide (F<sub></sub>E<sub></sub>NO) has been shown to be age, height and gender dependent. We hypothesize that the nitric oxide (NO) parameters alveolar NO (C<sub>A</sub>NO), airway flux (J<sub>aw</sub>NO), airway diffusing capacity (D<sub>aw</sub>NO) and airway wall content (C<sub>aw</sub>NO), will also demonstrate this dependence...
June 14, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28608670/bottom-up-electrochemical-deposition-of-poly-styrene-sulfonate-on-nano-architectured-electrodes
#18
Michele Braglia, Ivan Vito Ferrari, Thierry Djenizian, Saulius Kaciulis, Peiman Soltani, Maria Luisa Di Vona, Philippe C Knauth
The cathodic deposition of poly(styrene sulfonate) on nano-architectured TiO2 electrodes is explored by cyclic voltammetry and potentiostatic and galvanostatic experiments, showing a diffusion-controlled deposition described by Cottrell's law. The structure and composition of the polymer is evidenced by various spectroscopic techniques, including NMR, FTIR and XPS and its morphology is studied by SEM. The average chain length can be estimated from the NMR spectra. The electropolymerisation mechanism initiates by radical anion formation...
June 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28608438/a-randomized-clinical-trial-investigating-the-efficacy-of-targeted-nutrition-as-adjunct-to-exercise-training-in-copd
#19
Coby van de Bool, Erica P A Rutten, Ardy van Helvoort, Frits M E Franssen, Emiel F M Wouters, Annemie M W J Schols
BACKGROUND: Evidence regarding the efficacy of nutritional supplementation to enhance exercise training responses in COPD patients with low muscle mass is limited. The objective was to study if nutritional supplementation targeting muscle derangements enhances outcome of exercise training in COPD patients with low muscle mass. METHODS: Eighty-one COPD patients with low muscle mass, admitted to out-patient pulmonary rehabilitation, randomly received oral nutritional supplementation, enriched with leucine, vitamin D, and omega-3 fatty acids (NUTRITION) or PLACEBO as adjunct to 4 months supervised high intensity exercise training...
June 12, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28607172/tweety-homologue-1-drives-brain-colonization-of-gliomas
#20
Erik Jung, Matthias Osswald, Jonas Blaes, Benedikt Wiestler, Felix Sahm, Torsten Schmenger, Gergely Solecki, Katrin Deumelandt, Felix T Kurz, Ruifan Xie, Sophie Weil, Oliver Heil, Carina Thomé, Miriam Gömmel, Mustafa Syed, Peter Häring, Peter E Huber, Sabine Heiland, Michael Platten, Andreas von Deimling, Wolfgang Wick, Frank Winkler
Early and progressive colonization of the healthy brain is one hallmark of diffuse gliomas, including glioblastomas. Recently we have discovered ultra-long (> ten to hundreds of microns) membrane protrusions (tumor microtubes, TMs) that are extended by glioma cells. TMs were associated with the capacity of glioma cells to effectively invade the brain, and proliferate. Moreover, TMs were also used by some tumor cells to interconnect to one large, resistant multicellular network. Here, we performed a correlative gene expression microarray and in vivo imaging analysis, and identified novel molecular candidates for TM formation and function...
June 8, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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