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  • 1
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    Improvement of Quality in Publication of Experimental Thermophysical Property Data: Challenges, Assessment Tools, Global Implementation, and Online Support (2013)
    American Chemical Society (ACS)
    Details
    Publication Date: 2013-09-07
    Description: Journal of Chemical & Engineering Data DOI: 10.1021/je400569s
    Print ISSN: 0021-9568
    Electronic ISSN: 1520-5134
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Published by American Chemical Society (ACS)
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  • 2
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    SOFI/Substrate integrity testing for cryogenic propellant tanks at extreme thermal gradient conditions (2015)
    Institute of Physics (IOP)
    Details
    Publication Date: 2015-12-19
    Description: Liquid propellant tank insulation for space flight requires low weight as well as high insulation factors. Use of Spray-On Foam Insulation (SOFI) is an accepted, cost effective technique for insulating a single wall cryogenic propellant tank and has been used extensively throughout the aerospace industry. Determining the bond integrity of the SOFI to the metallic substrate as well as its ability to withstand the in-service strains, both mechanical and thermal, is critical to the longevity of the insulation. This determination has previously been performed using highly volatile, explosive cryogens, which increases the test costs enormously, as well as greatly increasing the risk to both equipment and personnel. CTD has developed a new test system, based on a previous NASA test that simulates the mechanical and thermal strains associated with filling a large fuel tank with a cryogen. The test enables a relatively small SOFI/substrate sample to be monitored for any deformation...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Institute of Physics (IOP)
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  • 3
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    Radiative heating characteristics of earth's cloudy atmosphere from vertically resolved active sensors (2013)
    Wiley
    Details
    Publication Date: 2013-01-17
    Description: [1]  High vertical resolution CloudSat radar measurements, supplemented with cloud boundaries and aerosol information from the CALIPSO lidar, are used to examine radiative heating features in the atmosphere that have not previously been characterized by passive sensors. The monthly and annual-mean radiative heating/cooling structure for a four-year period between 2006 and 2010 is derived. The mean atmospheric radiative cooling rate from CloudSat/CALIPSO is 0.98 K d −1 (1.34 K d −1 between 150 and 950 hPa) and is largely a reflection of the earth's mean water vapor distribution, with sharp vertical gradients introduced by clouds. It is found that there is a minimum in cooling in the tropical lower to middle troposphere, a cooling maximum in the upper boundary layer of the Southern Hemisphere poleward of −10° latitude, and a minimum in cooling in the lower boundary layer in the mid- to high latitudes of both hemispheres. Clouds tops tend to strongly cool the upper boundary layer all year in the mid- to high latitudes of the Southern Hemisphere (where peak seasonal mean winter cooling is 3.4 K d −1 ), but this cooling is largely absent in the corresponding parts of the Northern Hemisphere during boreal winter, resulting in a hemispheric asymmetry in cloud radiative cooling.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 4
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    Eradication of solid tumors using histone deacetylase inhibitors combined with immune-stimulating antibodies [Medical Sciences] (2011)
    National Academy of Sciences
    Details
    Publication Date: 2011-03-09
    Description: Histone deacetylase inhibitors (HDACi) have been successfully used as monotherapies for the treatment of hematological malignancies; however, the single agent effects of HDACi against solid tumors are less robust. Using preclinical models of lymphoma, we have recently demonstrated that HDACi induce tumor cell-specific apoptosis and that this is essential for the therapeutic effects of these agents. Herein, we demonstrate that HDACi can be combined with immune-activating antibodies designed to promote the function of antigen-presenting cells (APCs) and enhance proliferation and survival of cytotoxic T cells (CTL) to stimulate a host antitumor immune response resulting in eradication of established solid tumors. This unique combination therapy was dependent on tumor cell apoptosis mediated by HDACi that stimulated the uptake of dead tumor cells by APCs. Tumor eradication was mediated by CD8+ CTL that used perforin as the key immune effector molecule. This combination therapy was well tolerated and induced long-term immunological antitumor memory capable of mediating spontaneous tumor eradication upon rechallenge. These studies indicate that the ability of HDACi to mediate subtherapeutic levels of tumor cell apoptosis can be exploited by combining with antibodies that augment host antitumor immune responses to mediate robust and prolonged eradication of solid tumors.
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 5
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    Hydrometeorological measurements in peatland‐dominated, discontinuous permafrost at Scotty Creek, Northwest Territories, Canada (2019)
    Wiley
    Details
    Publication Date: 2019
    Description: Abstract The discontinuous permafrost region of northwestern Canada is experiencing rapid warming resulting in dramatic land cover change from forested peatland permafrost terrain to treeless wetlands. Extensive research has been conducted throughout this region to gain insight into how climate‐induced land cover change will impact water resources and ecosystem function. This paper presents a hydrological and micrometeorological dataset collected in the Scotty Creek basin, Northwest Territories, Canada over the period of 01 October 2014 to 30 September 2015, a sample of the intensive and coordinated measurements collected annually at this site. Micrometeorological data collected from four stations, one located in each of the land cover types representative of those comprising the Scotty Creek basin including bog, channel fen, stable peat plateau and peat plateau undergoing rapid permafrost degradation and loss, are presented. Monitored micrometeorological variables include incoming and outgoing shortwave and longwave radiation, air temperature, relative humidity, wind speed, precipitation (rain and snow) and snow depth. Deep ground temperatures (~1–10 m below the ground surface) from a channel fen as well as disturbed sites common to the basin including a seismic line and winter road are presented. Water levels were also monitored in the representative land cover types over this period. This dataset is available from the Wilfrid Laurier University Library Research Data Repository (https://doi.org/10.5683/SP/OQDRJG) and can be used in coordination with other hydrological and micrometeorological datasets to examine spatio‐temporal effects of meteorological conditions on local hydrological responses across cold regions.
    Electronic ISSN: 2049-6060
    Topics: Geosciences
    Published by Wiley
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  • 6
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    Biodiversity and biogeography of phages in modern stromatolites and thrombolites (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-03-04
    Description: Viruses, and more particularly phages (viruses that infect bacteria), represent one of the most abundant living entities in aquatic and terrestrial environments. The biogeography of phages has only recently been investigated and so far reveals a cosmopolitan distribution of phage genetic material (or genotypes). Here we address this cosmopolitan distribution through the analysis of phage communities in modern microbialites, the living representatives of one of the most ancient life forms on Earth. On the basis of a comparative metagenomic analysis of viral communities associated with marine (Highborne Cay, Bahamas) and freshwater (Pozas Azules II and Rio Mesquites, Mexico) microbialites, we show that some phage genotypes are geographically restricted. The high percentage of unknown sequences recovered from the three metagenomes (〉97%), the low percentage similarities with sequences from other environmental viral (n = 42) and microbial (n = 36) metagenomes, and the absence of viral genotypes shared among microbialites indicate that viruses are genetically unique in these environments. Identifiable sequences in the Highborne Cay metagenome were dominated by single-stranded DNA microphages that were not detected in any other samples examined, including sea water, fresh water, sediment, terrestrial, extreme, metazoan-associated and marine microbial mats. Finally, a marine signature was present in the phage community of the Pozas Azules II microbialites, even though this environment has not been in contact with the ocean for tens of millions of years. Taken together, these results prove that viruses in modern microbialites display biogeographical variability and suggest that they may be derived from an ancient community.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Desnues, Christelle -- Rodriguez-Brito, Beltran -- Rayhawk, Steve -- Kelley, Scott -- Tran, Tuong -- Haynes, Matthew -- Liu, Hong -- Furlan, Mike -- Wegley, Linda -- Chau, Betty -- Ruan, Yijun -- Hall, Dana -- Angly, Florent E -- Edwards, Robert A -- Li, Linlin -- Thurber, Rebecca Vega -- Reid, R Pamela -- Siefert, Janet -- Souza, Valeria -- Valentine, David L -- Swan, Brandon K -- Breitbart, Mya -- Rohwer, Forest -- England -- Nature. 2008 Mar 20;452(7185):340-3. doi: 10.1038/nature06735. Epub 2008 Mar 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, San Diego State University, San Diego, California 92182, USA. cdesnues@yahoo.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18311127" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteriophages/classification/genetics/*isolation & purification/*physiology ; Bahamas ; *Biodiversity ; Capsid/chemistry ; Computational Biology ; DNA, Viral/analysis/genetics ; *Ecosystem ; Fresh Water/microbiology/virology ; Genome, Viral/genetics ; Genomics ; *Geography ; Geologic Sediments/microbiology/virology ; Mexico ; Molecular Sequence Data ; Phylogeny ; Proteome/metabolism ; Seawater/microbiology/virology ; *Water Microbiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 7
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    Functional metagenomic profiling of nine biomes (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-03-14
    Description: Microbial activities shape the biogeochemistry of the planet and macroorganism health. Determining the metabolic processes performed by microbes is important both for understanding and for manipulating ecosystems (for example, disruption of key processes that lead to disease, conservation of environmental services, and so on). Describing microbial function is hampered by the inability to culture most microbes and by high levels of genomic plasticity. Metagenomic approaches analyse microbial communities to determine the metabolic processes that are important for growth and survival in any given environment. Here we conduct a metagenomic comparison of almost 15 million sequences from 45 distinct microbiomes and, for the first time, 42 distinct viromes and show that there are strongly discriminatory metabolic profiles across environments. Most of the functional diversity was maintained in all of the communities, but the relative occurrence of metabolisms varied, and the differences between metagenomes predicted the biogeochemical conditions of each environment. The magnitude of the microbial metabolic capabilities encoded by the viromes was extensive, suggesting that they serve as a repository for storing and sharing genes among their microbial hosts and influence global evolutionary and metabolic processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dinsdale, Elizabeth A -- Edwards, Robert A -- Hall, Dana -- Angly, Florent -- Breitbart, Mya -- Brulc, Jennifer M -- Furlan, Mike -- Desnues, Christelle -- Haynes, Matthew -- Li, Linlin -- McDaniel, Lauren -- Moran, Mary Ann -- Nelson, Karen E -- Nilsson, Christina -- Olson, Robert -- Paul, John -- Brito, Beltran Rodriguez -- Ruan, Yijun -- Swan, Brandon K -- Stevens, Rick -- Valentine, David L -- Thurber, Rebecca Vega -- Wegley, Linda -- White, Bryan A -- Rohwer, Forest -- England -- Nature. 2008 Apr 3;452(7187):629-32. doi: 10.1038/nature06810. Epub 2008 Mar 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, San Diego State University, San Diego, California 92182, USA. elizabeth_dinsdale@hotmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18337718" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anthozoa/physiology ; Archaea/genetics/isolation & purification/metabolism ; Bacteria/*genetics/isolation & purification/*metabolism ; Chemotaxis/genetics ; Computational Biology ; Culicidae/physiology ; *Ecosystem ; Fishes/physiology ; Fresh Water ; *Gene Expression Profiling ; Genome, Archaeal ; Genome, Bacterial ; Genome, Viral ; *Genomics ; Microbiology ; Seawater ; Viruses/*genetics/isolation & purification/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 8
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    Membrane-bound Fas ligand only is essential for Fas-induced apoptosis (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-10-02
    Description: Fas ligand (FasL), an apoptosis-inducing member of the TNF cytokine family, and its receptor Fas are critical for the shutdown of chronic immune responses and prevention of autoimmunity. Accordingly, mutations in their genes cause severe lymphadenopathy and autoimmune disease in mice and humans. FasL function is regulated by deposition in the plasma membrane and metalloprotease-mediated shedding. Here we generated gene-targeted mice that selectively lack either secreted FasL (sFasL) or membrane-bound FasL (mFasL) to resolve which of these forms is required for cell killing and to explore their hypothesized non-apoptotic activities. Mice lacking sFasL (FasL(Deltas/Deltas)) appeared normal and their T cells readily killed target cells, whereas T cells lacking mFasL (FasL(Deltam/Deltam)) could not kill cells through Fas activation. FasL(Deltam/Deltam) mice developed lymphadenopathy and hyper-gammaglobulinaemia, similar to FasL(gld/gld) mice, which express a mutant form of FasL that cannot bind Fas, but surprisingly, FasL(Deltam/Deltam) mice (on a C57BL/6 background) succumbed to systemic lupus erythematosus (SLE)-like autoimmune kidney destruction and histiocytic sarcoma, diseases that occur only rarely and much later in FasL(gld/gld) mice. These results demonstrate that mFasL is essential for cytotoxic activity and constitutes the guardian against lymphadenopathy, autoimmunity and cancer, whereas excess sFasL appears to promote autoimmunity and tumorigenesis through non-apoptotic activities.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2785124/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2785124/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O' Reilly, Lorraine A -- Tai, Lin -- Lee, Lily -- Kruse, Elizabeth A -- Grabow, Stephanie -- Fairlie, W Douglas -- Haynes, Nicole M -- Tarlinton, David M -- Zhang, Jian-Guo -- Belz, Gabrielle T -- Smyth, Mark J -- Bouillet, Philippe -- Robb, Lorraine -- Strasser, Andreas -- CA043540-18/CA/NCI NIH HHS/ -- CA80188-6/CA/NCI NIH HHS/ -- R01 CA043540/CA/NCI NIH HHS/ -- R01 CA043540-18/CA/NCI NIH HHS/ -- R01 CA080188-06/CA/NCI NIH HHS/ -- England -- Nature. 2009 Oct 1;461(7264):659-63. doi: 10.1038/nature08402.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19794494" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibodies, Antinuclear/immunology ; Antigens, CD95/*metabolism ; *Apoptosis ; Cell Membrane/*metabolism ; Cytidine Deaminase/metabolism ; Cytotoxicity, Immunologic ; Fas Ligand Protein/deficiency/genetics/*metabolism/secretion ; Glomerulonephritis/metabolism ; Histiocytic Sarcoma/metabolism ; Hypergammaglobulinemia/metabolism ; Lupus Erythematosus, Systemic/metabolism ; Lymphatic Diseases/metabolism ; Mice ; Mice, Inbred C57BL ; Mutation ; Splenomegaly/metabolism ; T-Lymphocytes/immunology/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 9
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    Photosystem I gene cassettes are present in marine virus genomes (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-08-28
    Description: Cyanobacteria of the Synechococcus and Prochlorococcus genera are important contributors to photosynthetic productivity in the open oceans. Recently, core photosystem II (PSII) genes were identified in cyanophages and proposed to function in photosynthesis and in increasing viral fitness by supplementing the host production of these proteins. Here we show evidence for the presence of photosystem I (PSI) genes in the genomes of viruses that infect these marine cyanobacteria, using pre-existing metagenomic data from the global ocean sampling expedition as well as from viral biomes. The seven cyanobacterial core PSI genes identified in this study, psaA, B, C, D, E, K and a unique J and F fusion, form a cluster in cyanophage genomes, suggestive of selection for a distinct function in the virus life cycle. The existence of this PSI cluster was confirmed with overlapping and long polymerase chain reaction on environmental DNA from the Northern Line Islands. Potentially, the seven proteins encoded by the viral genes are sufficient to form an intact monomeric PSI complex. Projection of viral predicted peptides on the cyanobacterial PSI crystal structure suggested that the viral-PSI components might provide a unique way of funnelling reducing power from respiratory and other electron transfer chains to the PSI.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4605144/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4605144/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sharon, Itai -- Alperovitch, Ariella -- Rohwer, Forest -- Haynes, Matthew -- Glaser, Fabian -- Atamna-Ismaeel, Nof -- Pinter, Ron Y -- Partensky, Frederic -- Koonin, Eugene V -- Wolf, Yuri I -- Nelson, Nathan -- Beja, Oded -- Z99 LM999999/Intramural NIH HHS/ -- England -- Nature. 2009 Sep 10;461(7261):258-62. doi: 10.1038/nature08284. Epub 2009 Aug 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19710652" target="_blank"〉PubMed〈/a〉
    Keywords: Adhesins, Bacterial/chemistry/genetics ; Amino Acid Sequence ; Bacteriophages/*genetics/metabolism ; Biodiversity ; Genes, Bacterial/genetics ; Genes, Viral/*genetics ; Genome, Bacterial/genetics ; Genome, Viral/*genetics ; Geography ; Lipoproteins/chemistry/genetics ; Models, Molecular ; Molecular Sequence Data ; Oceans and Seas ; Open Reading Frames/genetics ; Oxidation-Reduction ; Photosynthesis/genetics ; Photosystem I Protein Complex/chemistry/*genetics ; Phylogeny ; Polymerase Chain Reaction ; Prochlorococcus/*virology ; Protein Conformation ; Seawater/*microbiology ; Synechococcus/*virology ; Viral Proteins/chemistry/genetics/metabolism ; Water Microbiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 10
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    Maintenance and propagation of a deleterious mitochondrial genome by the mitochondrial unfolded protein response (2016)
    Springer Nature
    In: Nature
    Details
    Publication Date: 2016-05-19
    Description: Maintenance and propagation of a deleterious mitochondrial genome by the mitochondrial unfolded protein response Nature 533, 7603 (2016). doi:10.1038/nature17989 Authors: Yi-Fan Lin, Anna M. Schulz, Mark W. Pellegrino, Yun Lu, Shai Shaham & Cole M. Haynes Mitochondrial genomes (mitochondrial DNA, mtDNA) encode essential oxidative phosphorylation (OXPHOS) components. Because hundreds of mtDNAs exist per cell, a deletion in a single mtDNA has little impact. However, if the deletion genome is enriched, OXPHOS declines, resulting in cellular dysfunction. For example, Kearns–Sayre syndrome is caused by a single heteroplasmic mtDNA deletion. More broadly, mtDNA deletion accumulation has been observed in individual muscle cells and dopaminergic neurons during ageing. It is unclear how mtDNA deletions are tolerated or how they are propagated in somatic cells. One mechanism by which cells respond to OXPHOS dysfunction is by activating the mitochondrial unfolded protein response (UPRmt), a transcriptional response mediated by the transcription factor ATFS-1 that promotes the recovery and regeneration of defective mitochondria. Here we investigate the role of ATFS-1 in the maintenance and propagation of a deleterious mtDNA in a heteroplasmic Caenorhabditis elegans strain that stably expresses wild-type mtDNA and mtDNA with a 3.1-kilobase deletion (∆mtDNA) lacking four essential genes. The heteroplasmic strain, which has 60% ∆mtDNA, displays modest mitochondrial dysfunction and constitutive UPRmt activation. ATFS-1 impairment reduced the ∆mtDNA nearly tenfold, decreasing the total percentage to 7%. We propose that in the context of mtDNA heteroplasmy, UPRmt activation caused by OXPHOS defects propagates or maintains the deleterious mtDNA in an attempt to recover OXPHOS activity by promoting mitochondrial biogenesis and dynamics.
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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