547,155 results match your criteria Evolution; international journal of organic evolution[Journal]


Adsorption, desorption, and crystallization of aqueous solutions in nanopores.

Langmuir 2019 Feb 20. Epub 2019 Feb 20.

Probing nano-confined solutions in tortuous, mesoporous media is challenging due to pore size, complex pore connectivity, and coexistence of multiple components and phases. Here, we use optical reflectance to experimentally investigate the wetting and drying of a mesoporous medium with ~3 nm diameter pores containing aqueous solutions of sodium chloride and lithium chloride. We show that the vapor activities, i. Read More

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http://dx.doi.org/10.1021/acs.langmuir.8b04307DOI Listing
February 2019

Coupling PtNi Ultrathin Nanowires with MXenes for Boosting Electrocatalytic Hydrogen Evolution in Both Acidic and Alkaline Solutions.

Small 2019 Feb 20:e1805474. Epub 2019 Feb 20.

State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China.

Developing an efficient electrocatalyst for the hydrogen evolution reaction (HER) working in both acidic and alkaline solutions is highly desirable, but still remains challenging. Here, Pt Ni ultrathin nanowires (NWs) with tunable compositions (x = 1.42, 3. Read More

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http://dx.doi.org/10.1002/smll.201805474DOI Listing
February 2019

Concurrent Proteomic Fingerprinting and Molecular Analysis Of Cyathostomins.

Proteomics 2019 Feb 20:e1800290. Epub 2019 Feb 20.

Institute for Parasitology and Tropical Veterinary Medicine, Department of Veterinary Medicine, Freie Universität Berlin, Germany.

Rapid, cost-effective, efficient and reliable helminth species identification is of considerable importance to understand host-parasite interactions, clinical disease and drug resistance. Cyathostomins (Nematoda: Strongylidae) are considered to be the most important equine parasites, yet research on this group has been hampered by the large number of 50 morphologically differentiated species, their occurrence in mixed infections with up to 15 species and the difficulties associated with conventional identification methods. Here, MALDI-TOF MS, previously successfully applied to identify numerous organisms, was evaluated and compared with conventional and molecular genetic approaches. Read More

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http://dx.doi.org/10.1002/pmic.201800290DOI Listing
February 2019

Comprehensive mass spectrometry-guided plant specialized metabolite phenotyping reveals metabolic diversity in the cosmopolitan plant family Rhamnaceae.

Plant J 2019 Feb 20. Epub 2019 Feb 20.

Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California, 92093, United States.

Plants produce a myriad of specialized metabolites to overcome their sessile habit and combat biotic as well as abiotic stresses. Evolution has shaped specialized metabolite diversity, which drives many other aspects of plant biodiversity. However, until recently, large-scale studies investigating specialized metabolite diversity in an evolutionary context have been limited by the impossibility to identify chemical structures of hundreds to thousands of compounds in a time-feasible manner. Read More

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http://dx.doi.org/10.1111/tpj.14292DOI Listing
February 2019

Bayesian personalized treatment selection strategies that integrate predictive with prognostic determinants.

Biom J 2019 Feb 20. Epub 2019 Feb 20.

Quantitative Health Sciences and The Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, USA.

The evolution of "informatics" technologies has the potential to generate massive databases, but the extent to which personalized medicine may be effectuated depends on the extent to which these rich databases may be utilized to advance understanding of the disease molecular profiles and ultimately integrated for treatment selection, necessitating robust methodology for dimension reduction. Yet, statistical methods proposed to address challenges arising with the high-dimensionality of omics-type data predominately rely on linear models and emphasize associations deriving from prognostic biomarkers. Existing methods are often limited for discovering predictive biomarkers that interact with treatment and fail to elucidate the predictive power of their resultant selection rules. Read More

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http://dx.doi.org/10.1002/bimj.201700323DOI Listing
February 2019

Breeding behavior in the blind Mexican cavefish and its river-dwelling conspecific.

PLoS One 2019 20;14(2):e0212591. Epub 2019 Feb 20.

Paris-Saclay Institute of Neuroscience, CNRS UMR9197, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette, France.

Fish reproductive patterns are very diverse in terms of breeding frequency, mating system, sexual dimorphisms and selection, mate choice, spawning site choice, courtship patterns, spawning behaviors and parental care. Here we have compared the breeding behavior of the surface-dwelling and cave-dwelling morphs of the characiform A. mexicanus, with the goals of documenting the spawning behavior in this emerging model organism, its possible evolution after cave colonization, and the sensory modalities involved. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0212591PLOS
February 2019

Analysis of development and evolution rules of civil aviation in China based on life cycle theory.

PLoS One 2019 20;14(2):e0212338. Epub 2019 Feb 20.

National Key Laboratory of ATC Safety Technology, Civil Aviation University of China, Tianjin, China.

The development of CAAC began in the early days of 1949. From a comparatively less popular means of transport to the world's second largest by volume, this means of transport has undergone major and minor changes in the last 70 years. It is not known whether there are significant laws in the process of development. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0212338PLOS
February 2019

Nine-year distribution pattern of hepatitis C virus (HCV) genotypes in Southern Italy.

PLoS One 2019 20;14(2):e0212033. Epub 2019 Feb 20.

SSD Virology and Molecular Biology, Department of Diagnostic Area, Istituto Nazionale Tumori, Fondazione "G. Pascale", IRCCS Italia, Naples, Italy.

Introduction: It has been greatly described that different hepatitis C virus (HCV) genotypes are strictly correlated to various evolution, prognosis and response to therapy during the chronic liver disease. Aim of this study was to outline the changes in the epidemiology of Hepatitis C genotypes in Southern Italy regions from 2006 to 2014.

Material/methods: Prevalence of HCV genotypes was analyzed in 535 HCV-RNA positive patients with chronic Hepatitis C infection, selected during the period 2012-2014, and compared with our previous data, referred to periods 2006-2008 and 2009-2011. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0212033PLOS
February 2019
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Secondary contact between diverged host lineages entails ecological speciation in a European hantavirus.

PLoS Biol 2019 Feb 20;17(2):e3000142. Epub 2019 Feb 20.

Institute of Ecology and Evolution, University of Bern, Switzerland.

The diversity of viruses probably exceeds biodiversity of eukaryotes, but little is known about the origin and emergence of novel virus species. Experimentation and disease outbreak investigations have allowed the characterization of rapid molecular virus adaptation. However, the processes leading to the establishment of functionally distinct virus taxa in nature remain obscure. Read More

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http://dx.doi.org/10.1371/journal.pbio.3000142DOI Listing
February 2019

Brain stem death - an overview.

Med Leg J 2019 Feb 20:25817218822008. Epub 2019 Feb 20.

2 Department of Forensic Medicine, Kasturba Medical College (affiliated to Manipal Academy of Higher Education, Manipal, Karnataka, India), Mangalore, India.

The concept of brain death has been a very intriguing topic and has taken many forms over the years. Brain stem death is a complex state of inactivity defined by the loss of reflexes of the pathways that pass through the brain stem, the 'shaft' of the brain which links the spinal cord to the cerebral cortex and the cerebellum where there is apnoea, loss of eye movement and pain sensation. There are many criteria, based on which a person can be said to be brain dead. Read More

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http://dx.doi.org/10.1177/0025817218822008DOI Listing
February 2019

Accelerating the Evolution of Health Promotion Research: Broadening Boundaries and Improving Impact.

Am J Public Health 2019 Feb;109(S2):S116

New York University New York, NY.

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http://dx.doi.org/10.2105/AJPH.2019.304991DOI Listing
February 2019

Sulfur Coordination Effects on the Stability and Activity of a Ruthenium-Based Water Oxidation Catalyst.

Inorg Chem 2019 Feb 20. Epub 2019 Feb 20.

Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology (SUSTech) , Shenzhen , 518055 , P. R. China.

Water oxidation is regarded as the bottleneck of the water splitting and the development of water oxidation catalysts is of importance in the view of reducing reaction barriers and promoting water oxidation efficiency. Recently, the Sun group has disclosed a family of highly active water oxidation catalysts, [Ru(bda)(L)] (bda = 2,2'-bipyridine-6,6'-dicarboxylate; L = N-containing ligands). Herein, we replaced the bda ligand with a 2,2'-bipyridine-6,6'-dicarbothioate (bct) ligand and prepared a mononuclear ruthenium complex [Ru(bct)(pic)] (Ru-bct, pic = 4-picoline). Read More

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http://dx.doi.org/10.1021/acs.inorgchem.8b03199DOI Listing
February 2019

Atomistic Origin of the Complex Morphological Evolution of Aluminum Nanoparticles during Oxidation: a Chain-Like Oxide Nucleation and Growth Mechanism.

ACS Nano 2019 Feb 20. Epub 2019 Feb 20.

Metal nanoparticles usually show different oxidation dynamics from bulk metals, which results in various oxide nanostructures because of their size-related surface effects. In this work, we have found and investigated the chain-like nucleation and growth of oxides on the Aluminum nanoparticle (ANP) surface, using molecular dynamics simulations with the reactive force-field (ReaxFF). After nucleation, the chain-like oxide nuclei could stay on the ANP surface and continue growing into an oxide shell, or extend outward from the surface to form longer oxide chains, or detach from the ANP to generate independent oxide clusters, which is highly dependent on the oxygen content, temperature and nanoparticle size. Read More

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http://dx.doi.org/10.1021/acsnano.8b07633DOI Listing
February 2019

Edge Segregated Polymorphism in 2D Molybdenum Carbide.

Adv Mater 2019 Feb 20:e1808343. Epub 2019 Feb 20.

Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 17543, Singapore.

Molybdenum carbide (Mo C), a class of unterminated MXene, is endowed with rich polymorph chemistry, but the growth conditions of the various polymorphs are not understood. Other than the most commonly observed T-phase Mo C, little is known about other phases. Here, Mo C crystals are successfully grown consisting of mixed polymorphs and polytypes via a diffusion-mediated mechanism, using liquid copper as the diffusion barrier between the elemental precursors of Mo and C. Read More

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http://dx.doi.org/10.1002/adma.201808343DOI Listing
February 2019

WAITING DAAS LIST MORTALITY IMPACT IN HCV CIRRHOTIC PATIENTS.

Arq Gastroenterol 2018 Oct-Dec;55(4):343-345

Universidade Estadual Paulista (UNESP), Faculdade de Medicina, Departamento de Clínica Médica, Botucatu, SP, Brasil.

Background: The infection for the hepatitis C virus (HCV) is a leading cause of liver-related morbidity and mortality through its evolution to liver cirrhosis, end-stage liver complications and hepatocellular carcinoma. Currently, the new drugs for the HCV infection, based on direct antiviral agents, have changed the outcomes in this setting.

Objective: To assess death incidence, during the wait for the treatment with the new drugs, and to analyze which independent variable (age, sex, ascite, HDA, albumin, α-fetoprotein, platelets and Meld score) had relation with death. Read More

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S
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http://dx.doi.org/10.1590/S0004-2803.201800000-76DOI Listing
May 2018
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Photocatalytic performance of few-layer graphitic CN: enhanced by interlayer coupling.

Nanoscale 2019 Feb 20. Epub 2019 Feb 20.

New Energy Technology Engineering Laboratory of Jiangsu Province & School of Science, Nanjing University of Posts and Telecommunications (NJUPT), Nanjing 210023, China and Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.

For atomically thin two-dimensional materials, van der Waals interlayer coupling is a crucial factor to tune or produce novel physicochemical properties. In terms of photocatalysis, however, researching into the interlayer coupling effect is still in its infancy, especially that involving excited state dynamics. Here, by performing many-body perturbation theory and ab initio nonadiabatic molecular dynamics, we find that metal-free few-layer graphitic C3N4 (g-C3N4) possesses a better photocatalytic hydrogen evolution performance due to interlayer coupling compared with ultrathin monolayer g-C3N4. Read More

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http://dx.doi.org/10.1039/c8nr10142fDOI Listing
February 2019

Enhanced photocatalytic hydrogen evolution over bimetallic zeolite imidazole framework-encapsulated CdS nanorods.

Dalton Trans 2019 Feb 20. Epub 2019 Feb 20.

School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.

A hybrid of ZIF-8 with CdS nanorods could increase the transport efficiency of photo-generated charge carriers and the surface area. Notably, through doping Zn ions with a transition metal, in this work, we fabricated a bimetallic ZnM-ZIF (M = Ni, Cu, or Co)-encapsulated CdS nanorod heterostructure for the first time. Compared with ZIF-8, the bimetallic ZIF exhibited a modulated structure, flat band position, and lower overpotential for the hydrogen evolution reaction. Read More

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http://dx.doi.org/10.1039/c8dt04964eDOI Listing
February 2019

Electrochemical flow cell enabling operando probing of electrocatalyst surfaces by X-ray spectroscopy and diffraction.

Phys Chem Chem Phys 2019 Feb 20. Epub 2019 Feb 20.

Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.

The rational improvement of current and developing electrochemical technologies requires atomistic understanding of electrode-electrolyte interfaces. However, examining these interfaces under operando conditions, where performance is typically evaluated and benchmarked, remains challenging, as it necessitates incorporating an operando probe during full electrochemical operation. In this study, we describe a custom electrochemical flow cell that enables near-surface-sensitive operando investigation of planar thin-film catalysts at significant hydrogen evolution reaction (HER) rates (in excess of -100 mA cm-2) using grazing incidence X-ray methods. Read More

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http://dx.doi.org/10.1039/c8cp07423bDOI Listing
February 2019

Property Damage and Exposure to Other People in Distress Differentially Predict Prosocial Behavior After a Natural Disaster.

Psychol Sci 2019 Feb 20:956797619826972. Epub 2019 Feb 20.

1 School of Psychology, University of Auckland.

The persistent threat of natural disasters and their attendant resource shocks has likely shaped our prosocial drives throughout human evolution. However, it remains unclear how specific experiences during these events might impact cooperative decision making. We conducted two waves of four modified dictator-game experiments with the same individuals in Vanuatu ( N = 164), before and after Cyclone Pam in 2015. Read More

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http://dx.doi.org/10.1177/0956797619826972DOI Listing
February 2019

The Ptr1 locus of Solanum lycopersicoides confers resistance to race 1 strains of Pseudomonas syringae pv. tomato and to Ralstonia pseudosolanacearum by recognizing the type III effectors AvrRpt2/RipBN.

Mol Plant Microbe Interact 2019 Feb 20. Epub 2019 Feb 20.

Boyce Thompson Institute , Tower Rd , Ithaca, New York , Ithaca, New York, United States , 14853-1801 ;

Race 1 strains of Pseudomonas syringae pv. tomato, which cause bacterial speck disease of tomato, are becoming increasingly common and no simply-inherited genetic resistance to such strains is known. We discovered that a locus in Solanum lycopersicoides, termed Pseudomonas tomato race 1 (Ptr1), confers resistance to race 1 Pst strains by detecting the activity of type III effector AvrRpt2. Read More

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http://dx.doi.org/10.1094/MPMI-01-19-0018-RDOI Listing
February 2019

Temporally-Resolved Ultrafast Hydrogen Adsorption and Evolution on Single Platinum Nanoparticles.

Anal Chem 2019 Feb 20. Epub 2019 Feb 20.

The hydrogen evolution reaction (HER) was studied on single platinum nanoparticles (NPs) using a microjet NP collision system. By ejecting NPs onto a closely-positioned ultramicroelectrode (UME), one can study single-particle collision electrochemistry in acid concentrations as high as 3 M, or 750 mM on the electrode surface. This is nearly two orders of magnitude greater than previously reported in NP-collision studies. Read More

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http://dx.doi.org/10.1021/acs.analchem.8b05463DOI Listing
February 2019

New technical approach for type B dissection: from the PETTICOAT to the STABILISE concept.

J Cardiovasc Surg (Torino) 2019 Feb 20. Epub 2019 Feb 20.

Department of Vascular Surgery, San Raffaele Scientific Institute, Vita-Salute University School of Medicine, Milan, Italy.

Endovascular treatment of acute complicated type B aortic dissection (TBD) has recently acquired a primary therapeutic role when anatomically feasible. However, strategies meant to simply close the proximal entry tear leave the risk of persistent perfusion of the false lumen(FL) through additional tears in the thoracoabdominal aorta, and therefore the potential for aneurysmal degeneration remains significant over the years. Thus, additional bare stent implantation in the thoracoabdominal aorta has been proposed to promote true lumen (TL)expansion, malperfusion relief, and intimal lamella stabilization. Read More

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http://dx.doi.org/10.23736/S0021-9509.19.10904-4DOI Listing
February 2019

The evolution of multiple-insecticide resistance in UK populations of tomato leafminer, Tuta absoluta.

Pest Manag Sci 2019 Feb 20. Epub 2019 Feb 20.

College of Life and Environmental Sciences, Biosciences, University of Exeter, Penryn Campus, Penryn, Cornwall, UK.

Background: The tomato leafminer, Tuta absoluta, is an economically important pest of tomatoes in Europe, Africa, Asia and South America. In the UK this species is controlled using an integrated pest management (IPM) programme which incorporates the insecticides spinosad and chlorantraniliprole. In response to UK grower concerns of loss of efficacy of these compounds at certain sites, insecticide bioassays were performed on five populations collected from four commercial glasshouses and potential mechanisms of resistance investigated. Read More

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http://dx.doi.org/10.1002/ps.5381DOI Listing
February 2019

Ultrathin Cobalt Oxide Layers as Electrocatalysts for High-Performance Flexible Zn-Air Batteries.

Adv Mater 2019 Feb 20:e1807468. Epub 2019 Feb 20.

Hefei National Laboratory for Physical Science at the Microscale, iChEM (Collaborative Innovation Centre of Chemistry for Energy Materials), Hefei Science Centre (CAS) and CAS Key Laboratory of Mechanical Behaviour and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.

Synergistic improvements in the electrical conductivity and catalytic activity for the oxygen reduction reaction (ORR)/oxygen evolution reaction (OER) are of paramount importance for rechargeable metal-air batteries. In this study, one-nanometer-scale ultrathin cobalt oxide (CoO ) layers are fabricated on a conducting substrate (i.e. Read More

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http://dx.doi.org/10.1002/adma.201807468DOI Listing
February 2019

Evolutionary rate correlation between mitochondrial-encoded and mitochondria-associated nuclear-encoded proteins in insects.

Mol Biol Evol 2019 Feb 20. Epub 2019 Feb 20.

Department of Biology, University of Rochester, Rochester, USA.

The mitochondrion is a pivotal organelle for energy production, and includes components encoded by both the mitochondrial and nuclear genomes. Functional and evolutionary interactions are expected between the nuclear and mitochondrial encoded components. The topic is of broad interest in biology, with implications to genetics, evolution, and medicine. Read More

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http://dx.doi.org/10.1093/molbev/msz036DOI Listing
February 2019

Using historical biogeography models to study color pattern evolution.

Syst Biol 2019 Feb 20. Epub 2019 Feb 20.

Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA.

Color is among the most striking features of organisms, varying not only in spectral properties like hue and brightness, but also in where and how it is produced on the body. Different combinations of colors on a bird's body are important in both environmental and social contexts. Previous comparative studies have treated plumage patches individually or derived plumage complexity scores from color measurements across a bird's body. Read More

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http://dx.doi.org/10.1093/sysbio/syz012DOI Listing
February 2019

Different ways of doing the same: variations in the two last steps of the purine biosynthetic pathway in prokaryotes.

Genome Biol Evol 2019 Feb 20. Epub 2019 Feb 20.

Recôncavo da Bahia Federal University, CCAAB, Biological Sciences, Cruz das Almas, BA, Brazil.

The last two steps of the purine biosynthetic pathway may be catalysed by different enzymes in prokaryotes. The genes that encode these enzymes include homologs of purH, purP, purO and those encoding the AICARFT and IMPCH domains of PurH, here named purV and purJ, respectively. In Bacteria these reactions are mainly catalysed by the domains AICARFT and IMPCH of PurH. Read More

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http://dx.doi.org/10.1093/gbe/evz035DOI Listing
February 2019

Ni(ii)-doped anionic metal-organic framework nanowire arrays for enhancing the oxygen evolution reaction.

Chem Commun (Camb) 2019 Feb 20. Epub 2019 Feb 20.

School of Chemistry, The University of Melbourne, Parkville, Victoria, 3010, Australia.

Herein, an anionic metal-organic framework nanowire array not only directly grew on Cu foam, but also captured Ni(ii) ions at an ultra-small particle level. The hybrid material exhibited high activity with low overpotential (310 mV at 20 mA cm-2 in 1.0 M KOH solution) toward the oxygen evolution reaction (OER) (1 M KOH), with performance comparable to that of the precious metal benchmark. Read More

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http://dx.doi.org/10.1039/c9cc00009gDOI Listing
February 2019

Theoretical predication of the high hydrogen evolution catalytic activity for the cubic and tetragonal SnP systems.

Phys Chem Chem Phys 2019 Feb 20. Epub 2019 Feb 20.

Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People's Republic of China.

By means of density functional theory (DFT) calculations, we have systematically investigated the structures and hydrogen evolution reaction (HER) catalytic activities for the cubic and tetragonal SnP systems, both of which can be viewed as the stacking of SnP layers possessing structural features similar to the famous phosphorene. It is revealed that the (111) and (200) facets are the possible exposed surfaces of the cubic structure, while the possible exposed surfaces of the tetragonal structure are (101), (101[combining macron]), (110), (002) and (002[combining macron]) facets. The computed surface energies reveal that the P-terminated (111) surface and the (200) surface of the cubic SnP system as well as the P-terminated (101) and (101[combining macron]) surfaces and the (110) surface of the tetragonal SnP system can be considered as the more stable surfaces, in view of more favorable surface energy. Read More

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http://dx.doi.org/10.1039/c9cp00618dDOI Listing
February 2019

Hybrids of iridium-cobalt phosphates as a highly efficient electrocatalyst for the oxygen evolution reaction in neutral solution.

Chem Commun (Camb) 2019 Feb 20. Epub 2019 Feb 20.

School of Materials Science and Engineering, Beihang University, Beijing 100191, P. R. China.

Hybrids of iridium-cobalt phosphates (IrCo-Pi) were prepared via a facile co-electrodeposition approach and employed as an electrocatalyst for the oxygen evolution reaction (OER). IrCo-Pi with an optimized Ir-to-Co ratio (RIr-to-Co) exhibited an intrinsic activity toward the OER superior to the two well-known catalysts: cobalt phosphate (Co-Pi) and iridium phosphate (Ir-Pi). Read More

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http://dx.doi.org/10.1039/c8cc10278cDOI Listing
February 2019

Carbon-reduction as an easy route for the synthesis of VO (M1) and further Al, Ti doping.

Dalton Trans 2019 Feb 20. Epub 2019 Feb 20.

CNRS, Univ. Bordeaux, ICMCB UMR 5026, Pessac, F-33600, France.

A low-cost and facile method to synthesize highly crystallized VO2 (M1) particles is proposed, using carbon black as the reducing agent mixed with V2O5 nanopowders comparing two types of vacuum systems for the thermal activation. In a sealed vacuum system, CO gas is generated in the first reductive step, and continues to reduce the new born VO2, until all the V (+4) is reduced to V (+3), resulting in V2O3 formation at 1000 °C. In contrast, in a dynamic vacuum system, CO gas is ejected through pumping as soon as it is generated, leading to the formation of pure VO2 (M1) at high temperatures (i. Read More

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http://dx.doi.org/10.1039/c8dt04914aDOI Listing
February 2019

A remotely steerable Janus micromotor adsorbent for the active remediation of Cs-contaminated water.

J Hazard Mater 2019 Feb 14;369:416-422. Epub 2019 Feb 14.

Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, Daedeok-daero 989-111, Yuseong-gu, Daejeon, Republic of Korea. Electronic address:

We report the development of magnetically steerable self-propelled micromotors that selectively remove radioactive Cs from contaminated water. Mesoporous silica microspheres were functionalized with the highly Cs-selective copper ferrocyanide, and half of the adsorptive particle surface was then coated with ferromagnetic Ni and catalytic Pt layers to fabricate Janus micromotors. The micromotor adsorbent displayed random propulsion in an HO solution via catalytic bubble evolution from the Pt surface, and the micromotor adsorbent self-propulsion resulted in an 8-fold higher Cs removal compared to the stationary adsorbent within one hour. Read More

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http://dx.doi.org/10.1016/j.jhazmat.2019.02.054DOI Listing
February 2019

Catalytic ozonation of humic acid in water with modified activated carbon: Enhancement and restoration of the activity of an activated carbon catalyst.

J Environ Manage 2019 Feb 18;237:114-118. Epub 2019 Feb 18.

Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, Sichuan Province, PR China.

Catalytic ozonation of organic compounds in water is an important research area for addressing the current pollution crisis. The objective of the present study was to find a modification method for enhancing and restoring the activity of the activated carbon (AC) catalyst applied in the catalytic ozonation of the humic acid (HA) aquatic contaminant. A three-step treatment consisting of an initial thermal treatment, oxidation treatment, and further thermal treatment increased the amount of surface hydroxyl groups (COH) of AC while reducing the amounts of other surface groups, such as basic, carboxyl, lactone, and carbonyl groups. Read More

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http://dx.doi.org/10.1016/j.jenvman.2019.02.061DOI Listing
February 2019

Spatial and temporal risk quotient based river assessment for water resources management.

Environ Pollut 2019 Feb 8;248:133-144. Epub 2019 Feb 8.

Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam. Electronic address:

Malaysia depends heavily on rivers as a source for water supply, irrigation, and sustaining the livelihood of local communities. The evolution of land use in urban areas due to rapid development and the continuous problem of illegal discharge have had a serious adverse impact on the health of the country's waterways. Klang River requires extensive rehabilitation and remediation before its water could be utilised for a variety of purposes. Read More

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http://dx.doi.org/10.1016/j.envpol.2019.02.011DOI Listing
February 2019

Drivers of the fatal drug epidemic.

J Health Econ 2019 Jan 14;64:25-42. Epub 2019 Jan 14.

Frank Batten School of Leadership & Public Policy, University of Virginia, 235 McCormick Road, P.O. Box 400893, Charlottesville, VA, 22904-4893, United States. Electronic address:

This study examines the contributions of the medium-run evolution of local economies and of changes in the "drug environment' in explaining county-level changes in drug and related mortality rates from 1999 to 2015. A primary finding is that drug mortality rates did increase more in counties experiencing relative economic decline than in those with more robust growth, but that the relationship is weak and mostly accounted for by confounding factors. In the preferred estimates, less than one-tenth of the rise in drug and opioid-involved fatality rates is explained and the contribution is even smaller, quite possibly zero, when allowing for plausible selection on unobservables. Read More

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http://dx.doi.org/10.1016/j.jhealeco.2019.01.001DOI Listing
January 2019

Identifying Extrinsic versus Intrinsic Drivers of Variation in Cell Behavior in Human iPSC Lines from Healthy Donors.

Cell Rep 2019 Feb;26(8):2078-2087.e3

Centre for Stem Cells and Regenerative Medicine, King's College London, Floor 28, Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK. Electronic address:

Large cohorts of human induced pluripotent stem cells (iPSCs) from healthy donors are a potentially powerful tool for investigating the relationship between genetic variants and cellular behavior. Here, we integrate high content imaging of cell shape, proliferation, and other phenotypes with gene expression and DNA sequence datasets from over 100 human iPSC lines. By applying a dimensionality reduction approach, Probabilistic Estimation of Expression Residuals (PEER), we extracted factors that captured the effects of intrinsic (genetic concordance between different cell lines from the same donor) and extrinsic (cell responses to different fibronectin concentrations) conditions. Read More

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http://dx.doi.org/10.1016/j.celrep.2019.01.094DOI Listing
February 2019

Thermal refuge affects space use and movement of a large-bodied galliform.

J Therm Biol 2019 Feb 29;80:37-44. Epub 2018 Dec 29.

Department of Natural Resource Ecology and Management, Oklahoma State University, Stillwater, OK 74078, USA.

Temperature affects every organism on Earth and has been argued to be one of the most critical factors influencing organisms' ecology and evolution. Most organisms are susceptible to landscape temperature ranges that exceed their thermal tolerance. As a result, the distribution of landscape features that mitigate thermal extremes can affect movement and space use of organisms. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2018.12.024DOI Listing
February 2019

Thermal dependence of feeding performance and resting metabolic expenditure in different altitudinal populations of toad-headed lizards.

J Therm Biol 2019 Feb 2;80:16-20. Epub 2019 Jan 2.

Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.

Inter-population variations in growth rate can result from independent or interactive effects of genetic and environmental factors, and be induced by some physiological differences as well. Toad-headed lizards (Phrynocephalus vlangalii) from a higher-elevation population were shown to have a higher growth rate than those from a lower-elevation population. The physiological basis of growth rate variation in this species is not well understood. Read More

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http://dx.doi.org/10.1016/j.jtherbio.2019.01.001DOI Listing
February 2019

Comparison of mixing layer height inversion algorithms using lidar and a pollution case study in Baoding, China.

J Environ Sci (China) 2019 May 15;79:81-90. Epub 2018 Nov 15.

Key Lab of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.

Beijing-Tianjin-Hebei area is suffering from atmospheric pollution from a long time. The understanding of the air pollution mechanism is of great importance for officials to design strategies for the environmental governance. Mixing layer height (MLH) is a key factor influencing the diffusion of air pollutants. Read More

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http://dx.doi.org/10.1016/j.jes.2018.11.003DOI Listing

Using fluorescence surrogates to track algogenic dissolved organic matter (AOM) during growth and coagulation/flocculation processes of green algae.

J Environ Sci (China) 2019 May 3;79:311-320. Epub 2019 Jan 3.

Department of Environment & Energy, Sejong University, Seoul 05006, South Korea. Electronic address:

Tracking the variation of the algogenic organic matter (AOM) released during the proliferation of green algae and subsequent treatment processes is crucial for constructing and optimizing control strategies. In this study, the potential of the spectroscopic tool was fully explored as a surrogate of AOM upon the cultivation of green algae and subsequent coagulation/flocculation (C/F) treatment processes using ZrCl and Al(SO). Fluorescence excitation emission matrix coupled with parallel factor analysis (EEM-PARAFAC) identified the presence of three independent fluorescent components in AOM, including protein-like (C1), fulvic-like (C2) and humic-like components (C3). Read More

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http://dx.doi.org/10.1016/j.jes.2018.12.006DOI Listing

Sources of methacrolein and methyl vinyl ketone and their contributions to methylglyoxal and formaldehyde at a receptor site in Pearl River Delta.

J Environ Sci (China) 2019 May 17;79:1-10. Epub 2018 Dec 17.

Institute for Environmental and Climate Research, Jinan University, Guangzhou, China. Electronic address:

Methacrolein (MACR) and methyl vinyl ketone (MVK) are two major intermediate products from the photochemical oxidation of isoprene, the most important biogenic volatile organic compound. In addition, MACR and MVK have primary emissions. Investigating the sources and evolution of MACR and MVK could provide helpful information for the oxidative capacity of the atmosphere. Read More

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http://dx.doi.org/10.1016/j.jes.2018.12.001DOI Listing

Artificial scaffolds for enhanced biocatalysis.

Methods Enzymol 2019 25;617:363-383. Epub 2019 Jan 25.

Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, United States. Electronic address:

Proteins are not designed to be standalone entities and must coordinate their collective action for optimum performance. Nature has developed through evolution the ability to colocalize the functional partners of a cascade enzymatic reaction in order to ensure efficient exchange of intermediates. Inspired by these natural designs, synthetic scaffolds have been created to enhance the overall biological pathway performance. Read More

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http://dx.doi.org/10.1016/bs.mie.2018.12.007DOI Listing
January 2019

The Evolution of Dental Materials over the Past Century: Silver and Gold to Tooth Color and Beyond.

J Dent Res 2019 Mar;98(3):257-265

4 Academic Unit of Restorative Dentistry, University of Sheffield, Sheffield, UK.

The field of dental materials has undergone more of a revolution than an evolution over the past 100 y. The development of new products, especially in the past half century, has occurred at a staggering pace, and their introduction to the market has been equally impressive. The movement has mostly come in the area of improved esthetics, marked by the gradual replacement of dental amalgam with dental composite and all-metal and porcelain-fused-to-metal indirect restorations with reinforced dental ceramics, all made possible by the rapid improvements in dental adhesive materials. Read More

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http://dx.doi.org/10.1177/0022034518822808DOI Listing

Older age and HDL-cholesterol as independent predictors of liver fibrosis assessed by BARD score.

Minerva Med 2019 Feb 14. Epub 2019 Feb 14.

Department for Medical Biochemistry, Faculty of Pharmacy, niversity of Belgrade, Belgrade, Serbia.

Background: It is known that non-alcoholic fatty liver disease (NAFLD), and in particular non-alcoholicsteatohepatitis, can progress to advanced fibrosis. However, pathophysiological mechanisms implicated in this evolution are not elucidated yet. We aimed to investigate the independent predictors of liver fibrosis in patients with NAFLD, determined by BARD score, one of the most used algorithms for fibrosis evaluation. Read More

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http://dx.doi.org/10.23736/S0026-4806.19.05978-0DOI Listing
February 2019

Evidence for dynamic resource partitioning between two sympatric reef shark species within the British Indian Ocean Territory.

J Fish Biol 2019 Feb 19. Epub 2019 Feb 19.

Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Canada.

Stable-isotope analyses (δ C, δ N and δ S) of multiple tissues (fin, muscle, red blood cells and plasma), revealed ontogenetic shifts in resource use by grey reef sharks Carcharhinus amblyrhynchos and resource partitioning with silvertip sharks Carcharhinus albimarginatus within the British Indian Ocean Territory marine protected area (MPA). Resource partitioning varied temporally, with C. albimarginatus feeding on more pelagic prey during October to January, potentially attributable to an influx of pelagic prey from outside the MPA at that time. Read More

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http://dx.doi.org/10.1111/jfb.13938DOI Listing
February 2019

Life-history variation along environmental and harvest clines of a northern freshwater fish: plasticity and adaptation.

J Anim Ecol 2019 Feb 19. Epub 2019 Feb 19.

University of Calgary, Department of Biological Sciences, 2500 University Drive N.W, Calgary, Alberta, T2N 1N4.

Plasticity, local adaptation, and evolutionary tradeoffs drive clinal variation in traits associated with lifetime growth. Disentangling the processes and determinants that cause these traits to vary helps to understand species' responses to changing environments. This is particularly urgent for exploited populations, where size-selective harvest can induce life-history evolution. Read More

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http://dx.doi.org/10.1111/1365-2656.12965DOI Listing
February 2019

SubILM Injection of AAV for Gene Delivery to the Retina.

Methods Mol Biol 2019 ;1950:249-262

Department of Ophthalmology, University of Florida College of Medicine, Gainesville, FL, USA.

Adeno-associated virus (AAV) has emerged as the vector of choice for delivering genes to the retina. Indeed, the first gene therapy to receive FDA approval in the United States is an AAV-based treatment for the inherited retinal disease, Leber congenital amaurosis-2. Voretigene neparvovec (Luxturna™) is delivered to patients via subretinal (SR) injection, an invasive surgical procedure that requires detachment of photoreceptors (PRs) from the retinal pigment epithelium (RPE). Read More

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http://dx.doi.org/10.1007/978-1-4939-9139-6_14DOI Listing
January 2019

Transient active force generation and stress fibre remodelling in cells under cyclic loading.

Biomech Model Mechanobiol 2019 Feb 19. Epub 2019 Feb 19.

Discipline of Biomedical Engineering, National University of Ireland Galway, Galway, Ireland.

The active cytoskeleton is known to play an important mechanistic role in cellular structure, spreading, and contractility. Contractility is actively generated by stress fibres (SF), which continuously remodel in response to physiological dynamic loading conditions. The influence of actin-myosin cross-bridge cycling on SF remodelling under dynamic loading conditions has not previously been uncovered. Read More

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http://dx.doi.org/10.1007/s10237-019-01121-9DOI Listing
February 2019

Performance and microbial community profiles in pilot-scale biofilter for ammonia, iron and manganese removal at different dissolved oxygen concentrations.

World J Microbiol Biotechnol 2019 Feb 19;35(3):43. Epub 2019 Feb 19.

State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.

Dissolved oxygen (DO) is a significant operational parameter in biological systems. In this study, a pilot-scale biofilter was constructed to investigate the removal efficiency of ammonia, iron and manganese, as well as the microbial community structure evolution at different DO concentrations. Results indicated that when DO decreased from 8 to 4 mg/L, iron and manganese were still completely removed, however the concentration of ammonia in the effluent increased, and exceeded the permitted limit of 0. Read More

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http://dx.doi.org/10.1007/s11274-019-2617-xDOI Listing
February 2019

[Future through history].

Authors:
J M Rohrbach

Ophthalmologe 2019 Feb 19. Epub 2019 Feb 19.

Augenklinik, Universitäts-Klinikum Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Deutschland.

The motto of the German Ophthalmolological Society (DOG) Congress 2019 "Ophthalmology: our medical discipline with a future" raises the question of what "ophthalmological future" should really be, what are its driving forces and what are the foundations of its design. The design of the future, usually equated with "progress", naturally always takes place out of the present, which itself is a product of the past. History, like time and evolution, is always a continuum. Read More

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http://dx.doi.org/10.1007/s00347-019-0862-xDOI Listing
February 2019
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