1,546 results match your criteria Freiberg Infraction


Rietveld Structure Refinement of Cu-Trien Exchanged Nontronites.

Front Chem 2018 20;6:558. Epub 2018 Nov 20.

Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China.

The Rietveld analysis of X-ray powder diffraction patterns is used widely for obtaining the structural information of clay minerals. However, the complex hydration behavior and the variability of interlayer contents are often considered difficult to be described correctly by a simple structure model. In the present work, the use of Cu-triethylenetetramine (Cu-trien)-exchanged nontronites has been proposed to simplify the interlayer structure. Read More

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November 2018
1 Read

Assessing the generation, recycling and disposal practices of electronic/electrical-waste (E-Waste) from major cities in Pakistan.

Waste Manag 2018 Nov 21. Epub 2018 Nov 21.

Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST) Islamabad, Pakistan.

Rapid increase in the quantity of electronic/electrical-waste (e-waste) has become an emerging issue throughout the world. To avoid higher expenditures on safe disposal and recycling, large quantities of e-waste are being exported from developed to developing countries like Pakistan. Emerging issue of e-waste in Pakistan demands its effective management strategy for the country. Read More

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November 2018
2 Reads

A single-cycle replicable Rift Valley fever phlebovirus vaccine carrying a mutated NSs confers full protection from lethal challenge in mice.

Sci Rep 2018 Nov 20;8(1):17097. Epub 2018 Nov 20.

Department of Microbiology and Immunology, The University of Texas Medical Branch, Galveston, Texas, 77555-1019, United States.

Rift Valley fever phlebovirus (RVFV) is a pathogen of Rift Valley fever, which is a mosquito-borne zoonotic disease for domestic livestock and humans in African countries. Currently, no approved vaccine is available for use in non-endemic areas. The MP-12 strain is so far the best live attenuated RVFV vaccine candidate because of its good protective efficacy in animal models. Read More

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November 2018

Comparison of Birth Outcomes by Gestational Diabetes Screening Criteria.

AJP Rep 2018 Oct 29;8(4):e280-e288. Epub 2018 Oct 29.

Department of Epidemiology and Psychiatry, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.

 This study is to examine the association between different diagnostic criteria for gestational diabetes mellitus (GDM) and adverse birth outcomes.  A retrospective cohort study of 5,937 women with a singleton pregnancy was conducted, who completed GDM screening between 24 to 32 weeks gestational age. Four nonoverlapping groups of women defined as: 1) Normal: glucose challenge test (GCT) <130 mg/dL, 2) elevated GCT + normal oral glucose tolerance test (OGTT): abnormal 1 hour GCT + normal 3 hour OGTT, 3) GDM/International Association of Diabetes in Pregnancy Study Group (IADPSG): abnormal 3 hour OGTT by the IADPSG criteria, and 4) GDM/Carpenter-Coustan (CC): diagnosis per CC criteria. Read More

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October 2018
2 Reads

Direct-acting Antiviral Therapy for HCV Infection is Associated with a Reduced Risk of Cardiovascular Disease Events.

Gastroenterology 2018 Nov 13. Epub 2018 Nov 13.

Vanderbilt University School of Medicine, Nashville, TN, USA.

Background & Aims: Infection with hepatitis virus C (HCV) is associated with an increased risk of cardiovascular disease (CVD) events. It is not clear whether treatment with direct-acting antiviral (DAA) agents affects risk of CVD.

Methods: We searched the Electronically Retrieved Cohort of HCV-infected Veterans database for patients with chronic HCV infection (n=242,680), identifying patients who had been treated with a pegylated interferon and ribavirin regimen (n=4436) or a DAA-containing regimen (12,667). Read More

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November 2018
3 Reads

Human neural stem cell-derived neuron/astrocyte co-cultures respond to La Crosse virus infection with proinflammatory cytokines and chemokines.

J Neuroinflammation 2018 Nov 15;15(1):315. Epub 2018 Nov 15.

Department of Pathology, University of Texas Medical Branch, 301 University Boulevard, Galveston, 77555-0609, USA.

Background: La Crosse virus (LACV) causes pediatric encephalitis in the USA. LACV induces severe inflammation in the central nervous system, but the recruitment of inflammatory cells is poorly understood. A deeper understanding of LACV-induced neural pathology is needed in order to develop treatment options. Read More

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November 2018
4 Reads

Medical intensive care unit admission among patients with and without HIV, hepatitis C virus, and alcohol-related diagnoses in the United States: a national, retrospective cohort study, 1997-2014.

J Acquir Immune Defic Syndr 2018 Oct 29. Epub 2018 Oct 29.

Internal Medicine, Yale School of Medicine, New Haven, CT, USA.

Background: HIV, hepatitis C virus (HCV), and alcohol-related diagnoses (ARD) independently contribute increased risk for all-cause hospitalization. We sought to determine annual medical intensive care unit (MICU) admission rates and relative risk of MICU admission between 1997 and 2014 among people with and without HIV, HCV, and ARD, using data from the largest HIV and HCV care provider in the United States.

Setting: Veterans Health Administration. Read More

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October 2018
3 Reads
4.560 Impact Factor

Metabolic Mechanism of Aryl Phosphorus Flame Retardants by Cytochromes P450: A Combined Experimental and Computational Study on Triphenyl Phosphate.

Environ Sci Technol 2018 Nov 28. Epub 2018 Nov 28.

College of Environmental and Resource Sciences , Zhejiang University , Hangzhou 310058 , China.

Understanding metabolic mechanisms is critical and remains a difficult task in the risk assessment of emerging pollutants. Triphenyl phosphate (TPHP), a widely used aryl phosphorus flame retardant (aryl-PFR), has been frequently detected in the environment, and its major metabolite was considered as diphenyl phosphate (DPHP). However, knowledge of the mechanism for TPHP leading to DPHP and other metabolites is lacking. Read More

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November 2018
2 Reads

Structural stability of human butyrylcholinesterase under high hydrostatic pressure.

Biochim Biophys Acta Proteins Proteom 2018 Nov 7;1867(2):107-113. Epub 2018 Nov 7.

Institute of Physics, University of Tartu, W. Ostwald Str. 1, Tartu 51011, Estonia; Institute of Molecular and Cell Biology, University of Tartu, Riia 23, Tartu 51014, Estonia. Electronic address:

Human butyrylcholinesterase is a nonspecific enzyme of clinical, pharmacological and toxicological significance. Although the enzyme is relatively stable, its activity is affected by numerous factors, including pressure. In this work, hydrostatic pressure dependence of the intrinsic tryptophan fluorescence in native and salted human butyrylcholinesterase was studied up to the maximum pressure at ambient temperature of about 1200 MPa. Read More

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November 2018
3 Reads

An unusual case of Nocardia cyriacigeorgica presenting with spinal abscesses in a renal transplant recipient and a review of the literature.

Transpl Infect Dis 2018 Nov 10:e13025. Epub 2018 Nov 10.

Institute of Human Virology and Division of Infectious Diseases, University of Maryland School of Medicine, Baltimore, Maryland.

Nocardia species represent a well-recognized yet uncommon cause of opportunistic infections in humans. It most frequently presents as a pulmonary infection with or without central nervous system involvement. It is a very rare cause of spinal abscesses, with only 26 cases reported in the literature. Read More

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November 2018
4 Reads

Informed, Patient-Centered Decisions Associated with Better Health Outcomes in Orthopedics: Prospective Cohort Study.

Med Decis Making 2018 Nov;38(8):1018-1026

Division of General Internal Medicine (DGIM), Massachusetts General Hospital (MGH), Harvard Medical School (HMS), Boston, MA (KRS, SJA, YC, LHS).

Background: A goal of shared decision making (SDM) is to ensure patients are well informed and receive preferred treatments. However, the relationship between SDM and health outcomes is not clear.

Objective: The purpose was to examine whether patients who are well informed and receive their preferred treatment have better health outcomes. Read More

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November 2018
6 Reads

Transverse resonance island buckets for synchrotron-radiation based electron time-of-flight spectroscopy.

Rev Sci Instrum 2018 Oct;89(10):103114

Helmholtz-Zentrum Berlin, Albert-Einstein-Straße 15, 12489 Berlin, Germany.

At the Metrology Light Source (MLS), the compact electron storage ring of the Physikalisch-Technische Bundesanstalt (PTB) with a circumference of 48 m, a specific operation mode with two stable closed orbits for stored electrons was realized by transverse resonance island buckets. One of these orbits is closing only after three turns. In combination with single-bunch operation, the new mode was applied for electron time-of-flight spectroscopy with an interval of the synchrotron radiation pulses which is three times the revolution period at the MLS of 160 ns. Read More

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October 2018

Performance and microbial protein expression during anaerobic treatment of alkali-decrement wastewater using a strengthened circulation anaerobic reactor.

Bioresour Technol 2018 Oct 29;273:40-48. Epub 2018 Oct 29.

Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China; Institute of Biosciences, Freiberg University of Mining and Technology, Freiberg 09599, Germany.

Herein, a strengthened circulation anaerobic (SCA) reactor was employed for the treatment of actual alkali-decrement wastewater. The degradation mechanism of polyester oligomers and the relationship between the treatment performance and microbial community structure were systematically investigated using various advanced techniques. Results suggest that the accumulation of volatile fatty acids has an inhibitory effect on methanogenic activity. Read More

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October 2018
5 Reads
4.494 Impact Factor

Electrochemically induced phase separation and in situ formation of mesoporous structures in ionic liquid mixtures.

Sci Adv 2018 Oct 26;4(10):eaau9663. Epub 2018 Oct 26.

Institute of Electrochemistry, Clausthal University of Technology, Arnold Sommerfeld Str. 6, D-38678, Clausthal-Zellerfeld, Germany.

Liquid-liquid phase separation is mainly dependent on temperature and composition. Electric fields have also been shown to influence demixing of binary liquid mixtures. However, a puzzling behavior that remains elusive is the electric field-induced phase separation in ion-containing solvents at low voltages, as predicted by Tsori and Leibler. Read More

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October 2018

Sequential Versus Combination Therapy of Metastatic Colorectal Cancer Using Fluoropyrimidines, Irinotecan, and Bevacizumab: A Randomized, Controlled Study-XELAVIRI (AIO KRK0110).

J Clin Oncol 2018 Nov 2:JCO1800052. Epub 2018 Nov 2.

Dominik Paul Modest, Arndt Stahler, Sebastian Stintzing, Clemens Giessen-Jung, and Volker Heinemann, University Hospital Grosshadern; Andreas Jung and Thomas Kirchner, Ludwig Maximilians-Universität, Munich; Dominik Paul Modest, Andreas Jung, Thomas Kirchner, Sebastian Stintzing, and Volker Heinemann, German Cancer Consortium; Dominik Paul Modest, Andreas Jung, Thomas Kirchner, Sebastian Stintzing, and Volker Heinemann, German Cancer Research Centre, Heidelberg; Ludwig Fischer von Weikersthal, Gesundheitszentrum St Marien, Amberg; Thomas Decker, Private Oncological Practice, Ravensburg; Ursula Vehling-Kaiser, Private Oncological Practice, Landshut; Jens Uhlig, Private Oncological Practice, Naunhof; Michael Schenk, Krankenhaus Barmherzige Brüder Regensburg, Regensburg; Jens Freiberg-Richter, Private Oncological Practice, Dresden; Bettina Peuser, Onkologische Praxis am Diakonissenhaus, Leipzig; Claudio Denzlinger, Marienhospital, Stuttgart; Christina Peveling genannt Reddemann, MVZ RNR Leverkusen am Gesundheitspark; Swantje Held, ClinAssess GmbH, Leverkusen; Ullrich Graeven, Kliniken Maria Hilf GmbH, Mönchengladbach; Gunter Schuch, Hämatologisch-Onkologische Praxis Altona, Hamburg; and Ingo Schwaner, Onkologische Schwerpunktpraxis Kurfürstendamm, Berlin, Germany.

Purpose: The XELAVIRI trial investigated the optimal treatment strategy for patients with untreated metastatic colorectal cancer. We tested the noninferiority of initial treatment with a fluoropyrimidine plus bevacizumab, followed by the addition of irinotecan at first progression (arm A) versus upfront use of fluoropyrimidine plus irinotecan plus bevacizumab (arm B) in a 1:1 randomized, controlled phase III trial.

Methods: The primary efficacy end point was time to failure of the strategy (TFS). Read More

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November 2018
1 Read

An Innovated Application of Reutilize Copper Smelter Slag for Cement-based Electromagnetic Interference Composites.

Sci Rep 2018 Nov 1;8(1):16155. Epub 2018 Nov 1.

Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, B-3001, Heverlee, Leuven, Belgium.

In the present study, it has been attempted an innovated application, i.e., electromagnetic interference shielding material, to reutilize copper smelter slag, aiming at an alternative high value added product. Read More

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November 2018
2 Reads

Identification of Selective Dual ROCK1 and ROCK2 Inhibitors Using Structure Based Drug Design.

J Med Chem 2018 Nov 1. Epub 2018 Nov 1.

Co-crystal structures of an early lead compound were obtained in PKA, ROCK1 and ROCK2. This provided critical structural information for medicinal chemistry to drive compound design. Aspartic acid residues 176 and 218 in ROCK2, which are glutamic acids in PKA, were targeted as residues to drive both potency and kinome selectivity. Read More

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November 2018
2 Reads

Internal cranial anatomy of Early Triassic species of †Saurichthys (Actinopterygii: †Saurichthyiformes): implications for the phylogenetic placement of †saurichthyiforms.

BMC Evol Biol 2018 Nov 1;18(1):161. Epub 2018 Nov 1.

Palaeontological Institute and Museum, University of Zurich, Karl Schmid-Strasse 4, 8006, Zurich, Switzerland.

Background: †Saurichthyiformes were a successful group of latest Permian-Middle Jurassic predatory actinopterygian fishes and constituted important, widely-distributed components of Triassic marine and freshwater faunas. Their systematic affinities have long been debated, with †saurichthyiforms often being aligned with chondrosteans, a group today comprising sturgeons and paddlefishes. However, their character-rich endocranial anatomy has not been investigated in detail since the first half of the 20th century. Read More

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November 2018
4 Reads

Recent advances in anaerobic biological processes for textile printing and dyeing wastewater treatment: a mini-review.

World J Microbiol Biotechnol 2018 Oct 29;34(11):165. Epub 2018 Oct 29.

Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, People's Republic of China.

Textile printing and dyeing wastewater is usually characterized by high pH, high turbidity, poor bio-degradability, complex composition, and high chrominance, and is discharged in large amounts. It has been regarded as one of the hardest to treat forms of industrial wastewater. Conventional physicochemical technologies can remove these contaminants from water bodies, but at the expense of high energy consumption and high cost. Read More

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October 2018
4 Reads
1.780 Impact Factor

Catalytic Performance of a Class III Old Yellow Enzyme and Its Cysteine Variants.

Front Microbiol 2018 12;9:2410. Epub 2018 Oct 12.

Microbial Biotechnology, Department of Biology and Biotechnology, Ruhr-University Bochum, Bochum, Germany.

Class III old yellow enzymes (OYEs) contain a conserved cysteine in their active sites. To address the role of this cysteine in OYE-mediated asymmetric synthesis, we have studied the biocatalytic properties of OYERo2a from 1CP (WT) as well as its engineered variants C25A, C25S and C25G. OYERo2a in its redox resting state (oxidized form) is irreversibly inactivated by -methylmaleimide. Read More

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October 2018
7 Reads
3.940 Impact Factor

Investigation on adhesion of Sulfobacillus thermosulfidooxidans via atomic force microscopy equipped with mineral probes.

Colloids Surf B Biointerfaces 2018 Oct 19;173:639-646. Epub 2018 Oct 19.

Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China; Biofilm Centre, Aquatische Biotechnologie, Universität Duisburg-Essen, 45141, Essen, Germany; Interdisciplinary Ecological Centre, TU Bergakademie Freiberg, 09599, Freiberg, Germany. Electronic address:

Bacterial adhesion is a key step to prevent environmental problems called acid mine drainage or to improve leaching efficiency in industry, since it initiates and enhances bioleaching. Thus, to analyze bacterial adhesion and to understand this process is crucial. In this study atomic force microscopy equipped with a pyrite or chalcopyrite tip was applied to study the adhesion of Sulfobacillus thermosulfidooxidans. Read More

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October 2018
6 Reads
4.152 Impact Factor

Singlet Oxygen Reactivity with Carbonate Solvents Used for Li-Ion Battery Electrolytes.

J Phys Chem A 2018 Nov 6;122(45):8828-8839. Epub 2018 Nov 6.

Chair of Technical Electrochemistry, Department of Chemistry and Catalysis Research Center , Technische Universität München , 85748 Garching , Germany.

High degrees of delithiation of layered transition metal oxide cathode active materials (NCMs and HE-NCM) for lithium-ion batteries (LIBs) was shown to lead to the release of singlet oxygen, which is accompanied by enhanced electrolyte decomposition. Here, we study the reactivity of chemically produced singlet oxygen with the commonly used cyclic and linear carbonate solvents for LIB electrolytes. On-line gassing analysis of the decomposition of ethylene carbonate (EC) and dimethyl carbonate (DMC) reveals different stability toward the chemical attack of singlet oxygen, which is produced in situ by photoexcitation of the Rose Bengal dye. Read More

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November 2018
6 Reads

Screening and selection of technologically applicable microorganisms for recovery of rare earth elements from fluorescent powder.

Waste Manag 2018 Sep 20;79:554-563. Epub 2018 Aug 20.

Helmholtz-Zentrum Dresden-Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Chemnitzer Str. 40, 09599 Freiberg, Germany. Electronic address:

Rare Earth Elements (REE) are essential elements in many new technology products. Up to now, recycling is poorly established and no environmentally friendly strategies are applied. Modern biotechnologies like bioleaching can contribute to overcome the current limitations. Read More

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September 2018

Estimating the contribution of studies in network meta-analysis: paths, flows and streams.

F1000Res 2018 18;7:610. Epub 2018 May 18.

Institute of Social and Preventative Medicine (ISPM), University of Bern, Bern, Switzerland.

In network meta-analysis, it is important to assess the influence of the limitations or other characteristics of individual studies on the estimates obtained from the network. The percentage contribution matrix, which shows how much each direct treatment effect contributes to each treatment effect estimate from network meta-analysis, is crucial in this context. We use ideas from graph theory to derive the percentage that is contributed by each direct treatment effect. Read More

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The significance of collagen dressings in wound management: a review.

J Wound Care 2018 Oct;27(10):692-702

Prof. Dr. med., former Head of the Hospital of General and Visceral Surgery, Klinikum Chemnitz gGmbH, Flemmingstraße 2, 09116 Chemnitz, DE.

Clinical experience and research has improved our understanding of wound healing which, in turn, has enabled health professionals to aid wound healing and manufacturers to develop modern wound dressings. The significant role of collagen in wound healing has led to the development of numerous products on the basis of this biological material. The main focus of this review is to provide a critical appraisal of publications about collagen and acellular collagen dressings with a fleece-like or spongy structure. Read More

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October 2018
9 Reads

Metatarsalgia.

Radiol Clin North Am 2018 Nov;56(6):877-892

Department of Radiology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA. Electronic address:

Although causes of metatarsalgia are multifactorial, in practice these most commonly include osseous stress reaction or fracture (including subchondral injury) and interdigital neuroma or plantar plate tear with adjacent pseudoneuroma. The various roles of radiography, ultrasonography, and MR imaging are discussed, and relevant technical issues and imaging findings are reviewed in order to facilitate accurate diagnosis and guide proper treatment of metatarsalgia. Read More

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November 2018
2 Reads

Joint debridement and microfracture for treatment late-stage Freiberg-Kohler's disease: Long-term follow-up study.

Foot Ankle Surg 2018 Feb 27. Epub 2018 Feb 27.

Operative Unit of Orthopaedics and Traumatology, Israelite Hospital, Rome, Italy. Electronic address:

Background: Freiberg-Kohler's disease is not a common disease and although various reports have been described since 1914, treatment methods are not completely established. The purpose of the present retrospective study was to evaluate the long-term outcomes following joint debridement and microfracture procedures for the treatment of Freiberg-Kohler's disease.

Methods: Fifteen consecutive patients (16 feet) with Freiberg-Kohler's disease (Smillie's classification grade III-V) were operated between May 1996 to December 2011. Read More

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February 2018
1 Read

Fermi-Löwdin orbital self-interaction corrected density functional theory: Ionization potentials and enthalpies of formation.

J Comput Chem 2018 Nov 11;39(29):2463-2471. Epub 2018 Oct 11.

TU Freiberg, Institute of Theoretical Physics, Leipziger Str. 23, D-09599, Freiberg, Germany.

The Fermi-Löwdin orbital self-interaction correction (FLO-SIC) methodology is applied to atoms and molecules from the standard G2-1 test set. For the first time FLO-SIC results for the GGA-type PBE functional are presented. In addition, examples where FLO-SIC like any proper SIC provides qualitative improvements compared to standard DFT functionals are discussed in detail: the dissociation limit for , the step-wise linearity behavior for fractional occupation, as well as the significant reduction of the error of static polarizabilities. Read More

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November 2018
4 Reads

Description of Ore Particles from X-Ray Microtomography (XMT) Images, Supported by Scanning Electron Microscope (SEM)-Based Image Analysis.

Microsc Microanal 2018 10 10;24(5):461-470. Epub 2018 Oct 10.

1Institute of Stochastics,Ulm University,D-89069 Ulm,Germany.

In this paper, three-dimensional (3D) image data of ore particle systems is investigated. By combining X-ray microtomography with scanning electron microscope (SEM)-based image analysis, additional information about the mineralogical composition from certain planar sections can be gained. For the analysis of tomographic images of particle systems the extraction of single particles is essential. Read More

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October 2018

Entrapment and growth of Chlamydomonas reinhardtii in biocompatible silica hydrogels.

Colloids Surf B Biointerfaces 2018 Sep 29;173:233-241. Epub 2018 Sep 29.

Fermentation and Formulation of Biologicals and Chemicals, Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, Bielefeld, Germany. Electronic address:

In this work, we aimed at improved viability and growth of the microalga Chlamydomonas reinhardtii in transparent silica hydrogels based on low-ethanol, low-sodium and low-propylamine synthesis. Investigation into replacement of conventional base KOH by buffers dipotassium phosphate and tris(hydroxymethyl)aminomethane along with increased precursor concentrations yielded an aqueous synthesis route which provided a gelation within 10 min, absorptions below 0.1 and elastic moduli of 0. Read More

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September 2018
1 Read

Structural Characterization of Acidic Compounds in Pyrolysis Liquids Using Collision-Induced Dissociation and Fourier Transform Ion Cyclotron Resonance Mass Spectrometry.

Anal Chem 2018 Nov 16;90(21):12655-12662. Epub 2018 Oct 16.

Institute of Analytical Chemistry , TU Bergakademie Freiberg , Leipziger Straße 29 , 09599 Freiberg , Germany.

In this study, a novel approach to characterize and identify acidic oil compounds utilizing the fragmentational behavior of their corresponding precursor ions is presented. Precursor ions of seven analyzed pyrolysis oils that were generated from pyrolysis educts of different origins and degrees of coalification were produced by electrospray ionization in the negative ion mode (ESI(-)). Following a fragmentation of all ions in the ion cloud by collision-induced dissociation (CID), the precursor and product ions were subsequently detected by ultrahigh resolving Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). Read More

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November 2018

Estimating groundwater recharge for Hanoi, Vietnam.

Sci Total Environ 2019 Feb 22;651(Pt 1):1047-1057. Epub 2018 Sep 22.

Institute for Geology, Technische Universität Bergakademie Freiberg, 09596 Freiberg, Germany.

Determining groundwater recharge is in particular in areas with Monsoon rainfall a challenge. Several methods were used to estimate groundwater recharge for the first time ever for the urban area of Hanoi city, Vietnam. Water table fluctuation method (WTF), hydrograph analyses including recession curve displacement, graphical separation, the Automated Web GIS-Base Hydrology Analysis Tool (WHAT), and empirical formulas were utilized. Read More

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February 2019

Facile reduction of graphene oxide suspensions and films using glass wafers.

Sci Rep 2018 Sep 20;8(1):14154. Epub 2018 Sep 20.

Ioffe Institute, 26 Politekhnicheskaya, Saint-Petersburg, 194021, Russia.

This paper reports a facile and green method for conversion of graphene oxide (GO) into graphene by low-temperature heating (80 °C) in the presence of a glass wafer. Compared to conventional GO chemical reduction methods, the presented approach is easy-scalable, operationally simple, and based on the use of a non-toxic recyclable deoxygenation agent. The efficiency of the proposed method is further expanded by the fact that it can be applied for reducing both GO suspensions and large-scale thin films formed on various substrates prior to the reduction process. Read More

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September 2018
1 Read

Hierarchical Aerographite 3D flexible networks hybridized by InP micro/nanostructures for strain sensor applications.

Sci Rep 2018 Sep 17;8(1):13880. Epub 2018 Sep 17.

National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare av. 168, MD-2004, Chisinau, Republic of Moldova.

In the present work, we report on development of three-dimensional flexible architectures consisting of an extremely porous three-dimensional Aerographite (AG) backbone decorated by InP micro/nanocrystallites grown by a single step hydride vapor phase epitaxy process. The systematic investigation of the hybrid materials by scanning electron microscopy demonstrates a rather uniform spatial distribution of InP crystallites without agglomeration on the surface of Aerographite microtubular structures. X-ray diffraction, transmission electron microscopy and Raman scattering analysis demonstrate that InP crystallites grown on bare Aerographite are of zincblende structure, while a preliminary functionalization of the Aerographite backbone with Au nanodots promotes the formation of crystalline InO nanowires as well as gold-indium oxide core-shell nanostructures. Read More

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September 2018

Germanium in the soil-plant system-a review.

Environ Sci Pollut Res Int 2018 Sep 14. Epub 2018 Sep 14.

Institute for Biosciences, Biology/Ecology Group, TU Bergakademie Freiberg, Freiberg, Germany.

Germanium (Ge) is widespread in the Earth's crust. As a cognate element to silicon (Si), Ge shows very similar chemical characteristics. Recent use of Ge/Si to trace Si cycles and changes in weathering over time, growing demand for Ge as raw material, and consequently an increasing interest in Ge phytomining have contributed to a growing interest in this previously rather scarcely considered element in geochemical studies. Read More

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September 2018

Computational Insight into the Activation Mechanism of Carcinogenic N'-Nitrosonornicotine (NNN) Catalyzed by Cytochrome P450.

Environ Sci Technol 2018 Sep 26. Epub 2018 Sep 26.

UFZ Department of Ecological Chemistry , Helmholtz Centre for Environmental Research , Permoserstrasse 15 , 04318 , Leipzig , Germany.

Tobacco-specific N'-nitrosonornicotine (NNN), a genotoxic nitrosamine classified as Group 1 carcinogen, is also present in atmospheric particulate matter and has even been detected as a new disinfection byproduct in wastewaters. NNN generally requires metabolic activation by cytochrome P450 enzymes to exert its genotoxicity, but the respective biotransformation pathways have not been described in detail. In this work, we performed density functional theory (DFT) calculations to unravel possible NNN activation pathways including α-hydroxylation, β-hydroxylation, pyridine N-oxidation, and norcotinine formation. Read More

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September 2018
1 Read

Natural History and Pathogenesis of Wild-Type Marburg Virus Infection in STAT2 Knockout Hamsters.

J Infect Dis 2018 Nov;218(suppl_5):S438-S447

Department of Pathology, University of Texas Medical Branch, Galveston.

Marburg virus (MARV; family Filoviridae) causes sporadic outbreaks of Marburg hemorrhagic fever in sub-Saharan Africa with case fatality rates reaching 90%. Wild-type filoviruses, including MARV and the closely related Ebola virus, are unable to suppress the type I interferon response in rodents, and therefore require adaptation of the viruses to cause disease in immunocompetent animals. In the current study, we demonstrate that STAT2 knockout Syrian hamsters are susceptible to infection with different wild-type MARV variants. Read More

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November 2018
3 Reads

Imaging of Murine Whole Lung Fibrosis by Large Scale 3D Microscopy aided by Tissue Optical Clearing.

Sci Rep 2018 Sep 6;8(1):13348. Epub 2018 Sep 6.

Center for Biomedical Engineering, The University of Texas Medical Branch, Galveston, USA.

Pulmonary fibrosis, characterized by excessive collagen deposition in the lungs, comprises a key and debilitating component of chronic lung diseases. Methods are lacking for the direct visualization of fibrillar collagen throughout the whole murine lung, a capability that would aid the understanding of lung fibrosis. We combined an optimized organ-level optical clearing (OC) approach with large-scale, label-free multiphoton microscopy (MPM) and second harmonic generation microscopy (SHGM) to reveal the complete network of fibrillar collagen in whole murine lungs. Read More

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September 2018
2 Reads

Ligand-Free Nano-Au Catalysts on Nitrogen-Doped Graphene Filter for Continuous Flow Catalysis.

Nanomaterials (Basel) 2018 Sep 5;8(9). Epub 2018 Sep 5.

Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China.

In this study, the authors rationally designed a high-performance catalytic filter for continuous flow catalysis. The catalytic filter consisted of ligand-free nanoscale gold (nano-Au) catalysts and nitrogen-doped graphene (N-rGO). The Au catalyst was fabricated in situ onto a pre-formed N-rGO support by the NaBH₄ reduction of the Au precursor, and the size of the nano-Au was fine-tuned. Read More

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September 2018
5 Reads

A chemometric approach for the prediction of the aging levels of automatic transmission fluids by mid-infrared spectroscopy.

Talanta 2018 Dec 9;190:126-133. Epub 2018 Jul 9.

Institute of Analytical Chemistry, TU Bergakademie Freiberg, Leipziger Str. 29, 09599 Freiberg, Germany.

Automatic transmission fluids (ATF) are highly complex multi-component systems with a variety of different additive packages which suffer from manifold aging processes due to interfering factors. This work describes the development of a straightforward approach to model the aging effects by means of Fourier Transform Infrared (FTIR) spectroscopy combined with multivariate data analysis. Therefore, ATF samples were artificially aged under defined conditions by considering effects of product type, temperature, storage time and exposure to metallic materials, yielding 144 samples. Read More

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December 2018
15 Reads

Granulation process in an expanded granular sludge blanket (EGSB) reactor for domestic sewage treatment: Impact of extracellular polymeric substances compositions and evolution of microbial population.

Bioresour Technol 2018 Dec 25;269:153-161. Epub 2018 Aug 25.

Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai 201620, PR China; Institute of Biosciences, Freiberg University of Mining and Technology, Freiberg 09599, Germany.

In this study, an expanded granular sludge blanket (EGSB) reactor was used for the treatment of low-strength domestic sewage and the sludge granulation process was systematically investigated. At an optimized hydraulic retention time (HRT) of 5 h, up-flow velocity (V) of 1.9 m/h, and organic loading rate (OLR) of 2. Read More

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December 2018
4.490 Impact Factor

Spontaneous Substitutions at Phosphorus Trihalides in Imidazolium Halide Ionic Liquids: Grotthuss Diffusion of Anions?

Chemistry 2018 Nov 24;24(61):16323-16331. Epub 2018 Oct 24.

Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.

PX compounds (X=Cl, Br, I) in imidazolium halide ionic liquids combine with the anion Z (Z=Cl, Br, I) of the solvent to form [PX Z] complex anions. These anions have a sawhorse shape in which the lone pair of the phosphorus atom fills the third equatorial position of the pseudotrigonal bipyramid. Theoretical results show that this association remains incomplete due to strong hydrogen bonding with the cations of the ionic liquid, which competes with the phosphorus trihalide for interaction with the Z anion. Read More

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November 2018
7 Reads

Living sustainability, or merely pretending? From explicit self-report measures to implicit cognition.

Sustain Sci 2018 26;13(4):1001-1015. Epub 2018 Apr 26.

1Department for Knowledge and Communication Management, Faculty of Business and Globalization, Danube University Krems, Dr.-Karl-Dorrek-Straße 30, 3500 Krems, Austria.

Recent research supports that a person's self-reported explicit attitude is not necessarily consistent with their implicit attitude. However, in sustainability research, implicit cognitive measures are still at their early stages, and consider primarily singular aspects of sustainability. Here, we pose that the degree of congruence of individuals' implicit and explicit attitudes represents the foundation of any organization's sustainability culture. Read More

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Insights into the biology of acidophilic members of the Acidiferrobacteraceae family derived from comparative genomic analyses.

Res Microbiol 2018 Dec 22;169(10):608-617. Epub 2018 Aug 22.

Instituto de Ingeniería Biológica y Médica, Escuelas de Ingeniería, Medicina y Ciencias Biológicas, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, 7820486, Santiago, Chile; Departamento de Ingeniería Hidráulica y Ambiental, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, 7820486, Santiago, Chile. Electronic address:

The family Acidiferrobacteraceae (order Acidiferrobacterales) currently contains Gram negative, neutrophilic sulfur oxidizers such as Sulfuricaulis and Sulfurifustis, as well as acidophilic iron and sulfur oxidizers belonging to the Acidiferrobacter genus. The diversity and taxonomy of the genus Acidiferrobacter has remained poorly explored. Although several metagenome and bioleaching studies have identified its presence worldwide, only two strains, namely Acidiferrobacter thiooxydans DSM 2932, and Acidiferrobacter spp. Read More

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December 2018

Analysis of desferrioxamine-like siderophores and their capability to selectively bind metals and metalloids: development of a robust analytical RP-HPLC method.

Res Microbiol 2018 Dec 20;169(10):598-607. Epub 2018 Aug 20.

Institute of Biological Sciences, Environmental Microbiology Group, TU Bergakademie Freiberg, Leipziger Straße 29, 09599, Freiberg, Germany; Microbial Biotechnology, Ruhr University Bochum, Universitätsstr. 150, 44801, Bochum, Germany. Electronic address:

The Actinobacterium Gordonia rubripertincta CWB2 (DSM 46758) produces hydroxamate-type siderophores (188 mg L) under iron limitation. Analytical reversed-phase HPLC allowed determining a single peak of ferric iron chelating compounds from culture broth which was confirmed by the Fe-CAS assay. Elution profile and its absorbance spectrum were similar to those of commercial (des)ferrioxamine B which was used as reference compound. Read More

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December 2018
1 Read

PHOSPHORYLATED VP30 OF MARBURG VIRUS IS A REPRESSOR OF TRANSCRIPTION.

J Virol 2018 Aug 22. Epub 2018 Aug 22.

Departments of Pathology and Microbiology and Immunology, Galveston National Laboratory, University of Texas Medical Branch at Galveston, Galveston, Texas 77555

The filoviruses Marburg (MARV) and Ebola (EBOV) cause hemorrhagic fever in humans and non-human primates with case high fatality rates. MARV VP30 is known to be phosphorylated and to interact with nucleoprotein (NP), but its role in regulation of viral transcription is disputed. Here we analyzed phosphorylation of VP30 by mass spectrometry, which resulted in identification of multiple phosphorylated amino acids. Read More

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August 2018
26 Reads
4.440 Impact Factor

Evaluation of Electron-Phonon Coupling and Spectral Densities of Pigment-Protein Complexes by Line-Narrowed Optical Spectroscopy.

J Phys Chem B 2018 Oct 27;122(40):9289-9301. Epub 2018 Sep 27.

Spectral hole burning (SHB) and difference fluorescence line narrowing (ΔFLN) are routinely used for investigations of electron-phonon coupling in photosynthetic pigment-protein complexes as well as in other amorphous systems at cryogenic temperatures. Nevertheless, the Huang-Rhys factors S, an integral measure of electron-phonon coupling strength, and the phonon spectral densities obtained by SHB and ΔFLN over the past years have differed significantly in the case of certain photosynthetic pigment-protein complexes. In this work, the specific properties of both types of line-narrowing spectroscopic techniques that may lead to these discrepancies are critically analyzed by a combined experimental and computational approach, using the CP29 antenna complex of green plants as a suitable model system. Read More

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October 2018
3 Reads

"Dystrophia Myotonica" and the Legacy of Hans Gustav Wilhelm Steinert.

Ann Indian Acad Neurol 2018 Apr-Jun;21(2):116-118

Department of Neurology, Veterans Affairs Greater Los Angeles Healthcare System, USA.

The objective of this analysis is to study the life of Hans Gustav Wilhelm Steinert and his role in identifying several neurologic disorders including myotonic dystrophy (DM). DM type 1 (DM1) is a commonly inherited adult muscle disorder. In 1909, its characteristics were first described by Hans Steinert (1875-1911), a German neurologist. Read More

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Measuring interactions between yeast cells and a micro-sized air bubble via atomic force microscopy.

J Colloid Interface Sci 2018 Dec 11;532:689-699. Epub 2018 Aug 11.

Institute of Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology, Straße am Forum 8, 76131 Karlsruhe, Germany.

A method for the determination of interactions between yeast cells and air bubbles using the atomic force microscope was developed, in which a bubble acts as probe on immobilised living cells. The experimental setup and influencing parameters like bubble size, dwell time and maximum contact force on force-distance curves and maximum adhesion forces are explained. Also, interactions between bubble and yeast cells under variation of pH, ethanol concentration, salt concentration, ionic strength and influence of storage time in Yeast Malt Broth and phosphate buffered saline are investigated and discussed. Read More

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December 2018
1 Read