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https://www.readbyqxmd.com/read/29227561/green-synthesis-of-a-new-al-mof-based-on-the-aliphatic-linker-mesaconic-acid-structure-properties-and-in-situ-crystallisation-studies-of-al-mil-68-mes
#1
Helge Reinsch, Thomas Homburg, Niclas Heidenreich, Dominik Froehlich, Stefan Henninger, Michael Wark, Norbert Stock
A new aluminium MOF based on the short aliphatic linker molecule mesaconic acid (H2Mes; methylfumaric acid) is reported. Al-MIL-68-Mes with composition [Al(OH)(O2C-C3H4-CO2)]·nH2O is obtained after short reaction times of 45 minutes under mild, aqueous synthesis conditions (95 °C). It exhibits a kagome-like framework structure with large hexagonal and small trigonal channels (diameters of ~ 6 and ~2 Å, respectively) and a specific surface area of SBET ≈ 1040 m2/g (VMIC = 0.42 cm3/g). A sigmoidal vapour sorption isotherm for water and uptakes of water and methanol above 30 wt% were observed...
December 11, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29225764/sodium-chloride-accumulation-in-glycophyte-plants-with-cyanobacterial-symbionts
#2
Thomas George Allan Green, Leopoldo G Sancho, Ana Pintado, Dolores Saco, Soledad Martín, María Arróniz-Crespo, Miguel Angel Casermeiro, Maria Teresa de la Cruz Caravaca, Steven Cameron, Ricardo Rozzi
The majority of plant species are glycophytes and are not salt-tolerant and maintain low sodium levels within their tissues; if. high tissue sodium concentrations do occur, it is in response to elevated environmental salt levels. Here we report an apparently novel and taxonomically diverse grouping of plants that continuously maintain high tissue sodium contents and share the rare feature of possessing symbiotic cyanobacteria. Leaves of Gunnera magellanica in Tierra del Fuego always had sodium contents (dry weight basis) of around 4...
November 2017: AoB Plants
https://www.readbyqxmd.com/read/29222043/catheter-ablation-of-atrial-fibrillation-in-patients-with-heart-failure-and-preserved-ejection-fraction
#3
Eric Black-Maier, Xinru Ren, Benjamin A Steinberg, Cynthia L Green, Adam S Barnett, Normita Sta Rosa, Sana M Al-Khatib, Brett D Atwater, James P Daubert, Camille Frazier-Mills, Augustus O Grant, Donald D Hegland, Kevin P Jackson, Larry R Jackson, Jason I Koontz, Robert K Lewis, Albert Y Sun, Kevin L Thomas, Tristam D Bahnson, Jonathan P Piccini
BACKGROUND: Few studies have examined outcomes of catheter ablation for atrial fibrillation (AF) in patients with heart failure with preserved ejection fraction (HFpEF). OBJECTIVE: Compare outcomes of AF ablation in patients with HFpEF versus HF with reduced ejection fraction (HFrEF). METHODS: We performed a retrospective study of 230 patients with HF who underwent AF ablation, including 97 (42.2%) with HFrEF and 133 (57.8%) with HFpEF. Outcomes included adverse events, symptoms (Mayo AF Symptom Inventory [MAFSI]), New York Heart Association (NYHA) functional class, and freedom from recurrent atrial arrhythmia at 12-months...
December 5, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29220170/sustainable-conversion-of-carbon-dioxide-an-integrated-review-of-catalysis-and-life-cycle-assessment
#4
Jens Artz, Thomas E Müller, Katharina Thenert, Johanna Kleinekorte, Raoul Meys, André Sternberg, André Bardow, Walter Leitner
CO2 conversion covers a wide range of possible application areas from fuels to bulk and commodity chemicals and even to specialty products with biological activity such as pharmaceuticals. In the present review, we discuss selected examples in these areas in a combined analysis of the state-of-the-art of synthetic methodologies and processes with their life cycle assessment. Thereby, we attempted to assess the potential to reduce the environmental footprint in these application fields relative to the current petrochemical value chain...
December 8, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/29217218/nature-based-solutions-for-resilient-landscapes-and-cities
#5
Raffaele Lafortezza, Jiquan Chen, Cecil Konijnendijk van den Bosch, Thomas B Randrup
Nature-based solutions (NBS) are increasingly applied to guide the design of resilient landscapes and cities to enable them to reach economic development goals with beneficial outcomes for the environment and society. The NBS concept is closely related to other concepts including sustainability, resilience, ecosystem services, coupled human and environment, and green (blue) infrastructure; however, NBS represent a more efficient and cost-effective approach to development than traditional approaches. The European Commission is actively engaged in investing in NBS as a driver in developing ecosystem services-based approaches throughout Europe and the world...
December 4, 2017: Environmental Research
https://www.readbyqxmd.com/read/29216572/gene-expression-profiling-of-astaxanthin-and-fatty-acid-pathways-in-haematococcus-pluvialis-in-response-to-different-led-lighting-conditions
#6
Ruijuan Ma, Skye R Thomas-Hall, Elvis T Chua, Faisal Alsenani, Eladl Eltanahy, Michael E Netzel, Gabriele Netzel, Yinghua Lu, Peer M Schenk
Haematococcus pluvialis is a green microalga of major interest to industry based on its ability to produce large amounts of astaxanthin. Biosynthesis of astaxanthin and its mono- and di-esters was significantly stimulated under 150 μmol m-2 s-1 of white LED (W-150) compared with lower light intensities, but the highest astaxanthin amounts were produced under 70 μmol m-2 s-1 of blue LED (B-70). Transcripts of astaxanthin biosynthesis genes psy, crtO, and bkt2 were upregulated under W-150, while psy, lcy, crtO, and crtR-B were upregulated by B-70...
December 4, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29215023/a-pilot-characterization-of-the-human-chronobiome
#7
Carsten Skarke, Nicholas F Lahens, Seth D Rhoades, Amy Campbell, Kyle Bittinger, Aubrey Bailey, Christian Hoffmann, Randal S Olson, Lihong Chen, Guangrui Yang, Thomas S Price, Jason H Moore, Frederic D Bushman, Casey S Greene, Gregory R Grant, Aalim M Weljie, Garret A FitzGerald
Physiological function, disease expression and drug effects vary by time-of-day. Clock disruption in mice results in cardio-metabolic, immunological and neurological dysfunction; circadian misalignment using forced desynchrony increases cardiovascular risk factors in humans. Here we integrated data from remote sensors, physiological and multi-omics analyses to assess the feasibility of detecting time dependent signals - the chronobiome - despite the "noise" attributable to the behavioral differences of free-living human volunteers...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214382/bleeding-in-primary-shoulder-arthroplasty
#8
Dominik Malcherczyk, Asma Abdelmoula, Thomas J Heyse, Christian D Peterlein, Brandon Greene, Bilal F El-Zayat
INTRODUCTION: The aim of this investigation was to analyse "total blood loss" (TBL), "blood transfusion rate" (BT) and the "amount of transfused blood units" (BU) between the different primary shoulder arthroplasty (SA) types: reverse, anatomical and stemless. Only primary SA was included. Further goal was to identify risk factors for TBL, amount of BU and BT rate. METHODS: A retrospective charts analysis of patients who received primary SA for degenerative shoulder pathology in our institution between 2004 and 2016 was performed...
December 6, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29211716/atmospheric-trace-gases-support-primary-production-in-antarctic-desert-surface-soil
#9
Mukan Ji, Chris Greening, Inka Vanwonterghem, Carlo R Carere, Sean K Bay, Jason A Steen, Kate Montgomery, Thomas Lines, John Beardall, Josie van Dorst, Ian Snape, Matthew B Stott, Philip Hugenholtz, Belinda C Ferrari
Cultivation-independent surveys have shown that the desert soils of Antarctica harbour surprisingly rich microbial communities. Given that phototroph abundance varies across these Antarctic soils, an enduring question is what supports life in those communities with low photosynthetic capacity. Here we provide evidence that atmospheric trace gases are the primary energy sources of two Antarctic surface soil communities. We reconstructed 23 draft genomes from metagenomic reads, including genomes from the candidate bacterial phyla WPS-2 and AD3...
December 6, 2017: Nature
https://www.readbyqxmd.com/read/29205627/exacerbated-grassland-degradation-and-desertification-in-central-asia-during-2000-2014
#10
Geli Zhang, Chandrashekhar M Biradar, Xiangming Xiao, Jinwei Dong, Yuting Zhou, Yuanwei Qin, Yao Zhang, Fang Liu, Mingjun Ding, Richard J Thomas
Grassland degradation and desertification is a complex process, including both state conversion (e.g., grasslands to deserts) and gradual within-state change (e.g., greenness dynamics). Existing studies hardly separated the two components and analyzed it as a whole based on time series vegetation index data, which however cannot provide a clear and comprehensive picture for grassland degradation and desertification. Here we proposed an integrated assessment strategy, by considering both state conversion and within-state change of grasslands, to investigate grassland degradation and desertification process in Central Asia...
December 2, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/29204943/occurrence-distribution-and-composition-of-aliphatic-and-polycyclic-aromatic-hydrocarbons-in-sediment-cores-from-the-lower-fox-river-wisconsin-us
#11
Chase S Brewster, Virender K Sharma, Leslie Cizmas, Thomas J McDonald
The Lower Fox River is a 39 mile section which supports approximately 270,000 rural inhabitants across 18 counties, 303,000 metropolitan residents in Green Bay and Appleton, Wisconsin, and several large industrial complexes such as paper mills and power plants. This paper presents the distribution and concentrations of aliphatic (n-alkanes) and aromatic hydrocarbons (polycyclic aromatic hydrocarbons [PAHs]) as well as total organic carbon (TOC) in the Lower Fox River to identify the sources of hydrocarbon contamination...
December 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29197112/invasion-in-breast-lesions-the-role-of-the-epithelial-stroma-barrier
#12
REVIEW
Emad A Rakha, Islam Miligy, Kylie L Gorringe, Michael S Toss, Andrew R Green, Stephen B Fox, Fernando C Schmitt, Puay-Hoon Tan, Gary M Tse, Sunil Badve, Thomas Decker, Anne Vincent-Salomon, David J Dabbs, Maria P Foschini, Filipa Moreno, Yang Wentao, Felipe C Geyer, Jorge S Reis-Filho, Sarah E Pinder, Sunil R Lakhani, Ian O Ellis
Despite the significant biological, behavioural and management differences between ductal carcinoma in situ (DCIS) and invasive carcinoma of the breast, they share many morphological and molecular similarities. Differentiation of these two different lesions in breast pathological diagnosis is typically based on the presence of an intact barrier between the malignant epithelial cells and stroma, namely the myoepithelial cell (MEC) layer and surrounding basement membrane (BM). Despite being robust diagnostic criteria, the identification of MECs and BM to differentiate in situ from invasive carcinoma is not always straightforward...
December 2, 2017: Histopathology
https://www.readbyqxmd.com/read/29193780/presenting-characteristics-and-prevalence-of-polypoidal-choroidal-vasculopathy-in-scandinavian-patients-with-treatment-na%C3%A3-ve-exudative-age-related-macular-degeneration
#13
Thomas Dam Lorentzen, Yousif Subhi, Torben Lykke Sørensen
PURPOSE: To study presenting characteristics and prevalence of polypoidal choroidal vasculopathy (PCV) in Scandinavian Caucasians with treatment-naïve exudative age-related macular degeneration (AMD). METHODS: We reviewed all patients referred in year 2014 and diagnosed using fundus examination, optical coherence tomography, and fluorescein and indocyanine green angiography (ICGA). Details of found PCVs and its subtypes (clinical and angiographical) were correlated to the baseline best-corrected visual acuity (BCVA)...
November 30, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29183616/characterization-of-a-nicotinic-acetylcholine-receptor-binding-site-for-sulfoxaflor-a-new-sulfoximine-insecticide-for-the-control-of-sap-feeding-insect-pests
#14
Gerald B Watson, Monica B Olson, Kenneth W Beavers, Michael R Loso, Thomas C Sparks
Sulfoxaflor (SFX, Isoclast™ Active) is a recently developed sulfoximine insecticide that is highly effective against sap-feeding insect pests. SFX has been shown to act through an interaction with insect nicotinic acetylcholine receptors (nAChRs). SFX was previously found to interact weakly with the binding site for the neonicotinoid imidacloprid. However, radioligand displacement studies characterizing the binding site of the insecticide SFX itself have not been conducted. In this study, we report the characterization of a high affinity [3H]SFX Myzus persicae (green peach aphid, GPA) binding site with relatively low abundance...
November 2017: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/29178617/serum-lipid-and-protein-changes-in-healthy-dyslipidemic-subjects-given-a-selective-inhibitor-of-p70-s6-kinase-1
#15
Jennifer K Leohr, Debra Luffer-Atlas, M Jane Luo, David J DeBrota, Colin Green, Thomas E Mabry, Jeffrey G Suico
The safety, pharmacokinetic, and pharmacodynamic effects of LY2584702, a selective inhibitor for p70 S6 serine/threonine protein kinase-1, were evaluated in healthy dyslipidemic volunteers. LY2584702 was tolerated well as a monotherapy and dose-dependently reduced low-density lipoprotein cholesterol and triglycerides by up to 60% and 50%, respectively, without significantly changing high-density lipoprotein cholesterol levels in plasma. LY2584702 also dose-dependently decreased factor V activity. Alanine aminotransferase elevations were noted in 2 subjects when LY2584702 was given with atorvastatin...
November 26, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29175143/electron-linear-accelerator-production-and-purification-of-scandium-47-from-titanium-dioxide-targets
#16
David A Rotsch, M Alex Brown, Jerry A Nolen, Thomas Brossard, Walter F Henning, Sergey D Chemerisov, Roman G Gromov, John Greene
The photonuclear production of no-carrier-added (NCA) 47Sc from solid NatTiO2 and the subsequent chemical processing and purification have been developed. Scandium-47 was produced by the 48Ti(γ,p)47Sc reaction with Bremsstrahlung photons produced from the braking of electrons in a high-Z (W or Ta) convertor. Production yields were simulated with the PHITS code (Particle and Heavy Ion Transport-code System) and compared to experimental results. Irradiated TiO2 targets were dissolved in fuming H2SO4 in the presence of Na2SO4 and 47Sc was purified using the commercially available Eichrom DGA resin...
November 6, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29174891/local-signals-in-mouse-horizontal-cell-dendrites
#17
Camille A Chapot, Christian Behrens, Luke E Rogerson, Tom Baden, Sinziana Pop, Philipp Berens, Thomas Euler, Timm Schubert
The mouse retina contains a single type of horizontal cell, a GABAergic interneuron that samples from all cone photoreceptors within reach and modulates their glutamatergic output via parallel feedback mechanisms. Because horizontal cells form an electrically coupled network, they have been implicated in global signal processing, such as large-scale contrast enhancement. Recently, it has been proposed that horizontal cells can also act locally at the level of individual cone photoreceptors. To test this possibility physiologically, we used two-photon microscopy to record light stimulus-evoked Ca2+ signals in cone axon terminals and horizontal cell dendrites as well as glutamate release in the outer plexiform layer...
November 17, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29172650/attitudes-and-perceptions-of-environmental-sustainability-in-athletic-trainers
#18
Kelly Potteiger, William A Pitney, Thomas A Cappaert, Angela Wolfe
CONTEXT:   Environmental sustainability efforts are becoming a critical concern in health care. However, little is known regarding how athletic trainers feel about the environment or what can be done to reduce the environmental impact of the practice of athletic training. OBJECTIVE:   To examine athletic trainers' attitudes toward and perceptions of factors related to environmental sustainability. DESIGN:   Sequential, mixed methods using a survey, focus groups, and personal interviews...
November 27, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29172649/examining-the-environmental-effects-of-athletic-training-perceptions-of-waste-and-the-use-of-green-techniques
#19
Kelly Potteiger, William A Pitney, Thomas A Cappaert, Angela Wolfe
CONTEXT:   Environmental sustainability is a critical concern in health care. Similar to other professions, the practice of athletic training necessitates the use of a large quantity of natural and manufactured resources. OBJECTIVE:   To examine the perceptions of the perceived waste produced by the practice of athletic training and the green practices currently used by athletic trainers (ATs) to combat this waste. DESIGN:   Mixed-methods study...
November 27, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29164111/cartilage-and-muscle-cell-fate-and-origins-during-lizard-tail-regeneration
#20
Ricardo Londono, Wei Wenzhong, Bing Wang, Rocky S Tuan, Thomas P Lozito
Introduction: Human cartilage is an avascular tissue with limited capacity for repair. By contrast, certain lizards are capable of musculoskeletal tissue regeneration following tail loss throughout all stages of their lives. This extraordinary ability is the result of a complex process in which a blastema forms and gives rise to the tissues of the regenerate. Blastemal cells have been shown to originate either from dedifferentiated tissues or from existing progenitor cells in various species, but their origin has not been determined in lizards...
2017: Frontiers in Bioengineering and Biotechnology
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