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  • 1
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    Rates of rockwall slope erosion in the upper Bhagirathi catchment, Garhwal Himalaya (2019)
    In:  Earth Surface Processes and Landforms
    Details
    Publication Date: 2020-02-12
    Description: Rockwall slope erosion is defined for the upper Bhagirathi catchment using cosmogenic Beryllium‐10 (10Be) concentrations in sediment from medial moraines on Gangotri glacier. Beryllium‐10 concentrations range from 1.1 ± 0.2 to 2.7 ± 0.3 × 104 at/g SiO2, yielding rockwall slope erosion rates from 2.4 ± 0.4 to 6.9 ± 1.9 mm/a. Slope erosion rates are likely to have varied over space and time and responded to shifts in climate, geomorphic and/or tectonic regime throughout the late Quaternary. Geomorphic and sedimentological analyses confirm that the moraines are predominately composed of rockfall and avalanche debris mobilized from steep relief rockwall slopes via periglacial weathering processes. The glacial rockwall slope erosion affects sediment flux and storage of snow and ice at the catchment head on diurnal to millennial timescales, and more broadly influences catchment configuration and relief, glacier dynamics and microclimates. The slope erosion rates exceed the averaged catchment‐wide and exhumation rates of Bhagirathi and the Garhwal region on geomorphic timescales (103−105 years), supporting the view that erosion at the headwaters can outpace the wider catchment. The 10Be concentrations of medial moraine sediment for the upper Bhagirathi catchment and the catchments of Chhota Shigri in Lahul, northern India and Baltoro glacier in Central Karakoram, Pakistan show a tentative relationship between 10Be concentration and precipitation. As such there is more rapid glacial rockwall slope erosion in the monsoon‐influenced Lesser and Greater Himalaya compared to the semi‐arid interior of the orogen. Rockwall slope erosion in the three study areas, and more broadly across the northwest Himalaya is likely governed by individual catchment dynamics that vary across space and time.
    Language: English
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 2
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    High-frequency Holocene glacier fluctuations in the Himalayan-Tibetan orogen (2019)
    In:  Quaternary Science Reviews
    Details
    Publication Date: 2020-02-12
    Type: info:eu-repo/semantics/article
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  • 3
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    Stadtbäume im Stress : Interview [Part 1] = City Trees under Stress (2019)
    Earth System Knowledge Platform
    Details
    Publication Date: 2021-02-18
    Description: Im Trockenjahr 2018 sind in vielen Städten und Gemeinden Deutschlands frisch gepflanzte Bäume eingegangen. Im ersten Teil unseres ESKP-Interviews fordert Dr. Somidh Saha vom Karlsruher Institut für Technologie (KIT) bessere Baumregister, um alle Stadtbäume zu erfassen.
    Description: In the dry year 2018, newly planted trees died in many cities and communities in Germany. Also established and older tree populations in cities are exposed to growing stress, which is associated with heat, drought and pollution. These stress factors are often compounded by incorrect tree management. In the first part of the ESKP interview, Dr. Somidh Saha from the Karlsruhe Institute of Technology (KIT) calls for better tree registers to cover all urban trees.
    Language: German , English
    Type: info:eu-repo/semantics/other
    Format: application/pdf
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  • 4
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    Stadtbäume besser umsorgen : Interview [Part 2] = Better care for urban trees (2019)
    Earth System Knowledge Platform
    Details
    Publication Date: 2021-02-16
    Description: Oftmals fehlt es in Städten an einem geeigneten Baum-Management. Im zweiten Teil unseres ESKP-Interviews plädiert der Forstexperte Dr. Somidh Saha für gesetzliche Regelungen, die das Fällen von Großbäumen in Städten bundesweit stoppen.
    Description: In the dry year 2018, newly planted trees died in many cities and communities in Germany. Also established and older tree populations in cities are exposed to growing stress, which is associated with heat, drought and pollution. These stress factors are often compounded by incorrect tree management. In the first part of the ESKP interview, Dr. Somidh Saha from the Karlsruhe Institute of Technology (KIT) calls for better tree registers to cover all urban trees.
    Language: German , English
    Type: info:eu-repo/semantics/other
    Format: application/pdf
    Format: application/pdf
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  • 5
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    Cosmogenic 10Be and equilibrium-line altitude dataset of Holocene glacier advances in the Himalayan-Tibetan orogen (2019)
    In:  Data in Brief
    Details
    Publication Date: 2020-02-17
    Type: info:eu-repo/semantics/article
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  • 6
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    Interactive effect of biochar size and organic amendments on methane consumption in a tropical vertisol (2015)
    Wiley-Blackwell
    Details
    Publication Date: 2015-01-29
    Description: Biochar (BC) application to agricultural soil has been proposed as an effective countermeasure to mitigate climate change. A laboratory incubation experiment was carried out to gain insight into the effectiveness of BC on methane (CH 4 ) consumption in a tropical clayey vertisol. Except for the control treatment, BC of two different sizes (〈0.25 or 0.25–2.00 mm) was mixed with vermicompost (VC), poultry manure (PM) or farmyard manure (FYM). BC and organic amendment were added to soil at 10% w/w and 80 kg N/ha, respectively. BC increased CH 4 consumption rate, k , in soil, irrespective of organic amendment type. The CH 4 consumption potential of soil was greater with the smaller size BC (〈0.25 mm). Of the three organic amendments, VC exhibited the highest k (0.105) followed by FYM (0.093) and PM (0.072). BC (〈0.25 mm) + PM was the most effective of the organic amendments in enhancing CH 4 consumption ( k  = 0.242). The lag phase varied between 7.3 day (control) and 1.0 day (soil + VC). Results revealed that there was a significant ( P  〈 0.0001) effect of organic amendment and BC on CH 4 consumption, CO 2 production and microbial abundance. Cumulative CO 2 production (mg/g soil) varied between 2.15 (control) and 8.77 (soil + PM + BC 〈 0.25 mm). Pearson's correlation analysis showed significant correlation between CH 4 consumption and methanotrophs abundance ( P  〈 0.001). The study shows that BC enhanced CH 4 consumption potential in agricultural land on a tropical vertisol, particularly using the smaller size (〈0.25 mm), and could be an effective strategy to mitigate atmospheric CH 4 .
    Print ISSN: 0266-0032
    Electronic ISSN: 1475-2743
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley-Blackwell
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  • 7
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    The Sol Genomics Network (SGN)--from genotype to phenotype to breeding (2015)
    Oxford University Press
    Details
    Publication Date: 2015-01-16
    Description: The Sol Genomics Network (SGN, http://solgenomics.net ) is a web portal with genomic and phenotypic data, and analysis tools for the Solanaceae family and close relatives. SGN hosts whole genome data for an increasing number of Solanaceae family members including tomato, potato, pepper, eggplant, tobacco and Nicotiana benthamiana . The database also stores loci and phenotype data, which researchers can upload and edit with user-friendly web interfaces. Tools such as BLAST, GBrowse and JBrowse for browsing genomes, expression and map data viewers, a locus community annotation system and a QTL analysis tools are available. A new tool was recently implemented to improve Virus-Induced Gene Silencing (VIGS) constructs called the SGN VIGS tool. With the growing genomic and phenotypic data in the database, SGN is now advancing to develop new web-based breeding tools and implement the code and database structure for other species or clade-specific databases.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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  • 8
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    Evaluating the potential for undesired genomic effects of the piggyBac transposon system in human cells (2015)
    Oxford University Press
    Details
    Publication Date: 2015-02-18
    Description: Non-viral transposons have been used successfully for genetic modification of clinically relevant cells including embryonic stem, induced pluripotent stem, hematopoietic stem and primary human T cell types. However, there has been limited evaluation of undesired genomic effects when using transposons for human genome modification. The prevalence of piggyBac (PB)-like terminal repeat (TR) elements in the human genome raises concerns. We evaluated if there were undesired genomic effects of the PB transposon system to modify human cells. Expression of the transposase alone revealed no mobilization of endogenous PB-like sequences in the human genome and no increase in DNA double-strand breaks. The use of PB in a plasmid containing both transposase and transposon greatly increased the probability of transposase integration; however, using transposon and transposase from separate vectors circumvented this. Placing a eGFP transgene within transposon vector backbone allowed isolation of cells free from vector backbone DNA. We confirmed observable directional promoter activity within the 5'TR element of PB but found no significant enhancer effects from the transposon DNA sequence. Long-term culture of primary human cells modified with eGFP-transposons revealed no selective growth advantage of transposon-harboring cells. PB represents a promising vector system for genetic modification of human cells with limited undesired genomic effects.
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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  • 9
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    Anomalous spectral-weight transfers unraveling oxygen screening and electronic correlations in the insulator-metal transition of VO_{2} (2015)
    American Physical Society (APS)
    Details
    Publication Date: 2015-02-26
    Description: Author(s): L. H. Yeo, A. Srivastava, M. A. Majidi, R. Sutarto, F. He, S. M. Poh, C. Diao, X. Yu, M. Motapothula, S. Saha, S. Ojha, D. Kanjilal, P. E. Trevisanutto, M. B. H. Breese, T. Venkatesan, and A. Rusydi Vanadium dioxide (VO 2 ) undergoes an unusual insulator-metal transition (IMT), and after decades of study, the origin of the IMT remains hotly debated. Here, by analyzing spectral-weight transfers (SWTs) of x-ray absorption spectroscopy at the V L 3,2 and O K edges on specially designed VO 2 films, we ... [Phys. Rev. B 91, 081112] Published Wed Feb 25, 2015
    Keywords: Electronic structure and strongly correlated systems
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 10
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    IL-36 Receptor Signaling [Signal Transduction] (2015)
    The American Society for Biochemistry and Molecular Biology (ASBMB)
    Details
    Publication Date: 2015-09-26
    Description: Improper signaling of the IL-36 receptor (IL-36R), a member of the IL-1 receptor family, has been associated with various inflammation-associated diseases. However, the requirements for IL-36R signal transduction remain poorly characterized. This work seeks to define the requirements for IL-36R signaling and intracellular trafficking. In the absence of cognate agonists, IL-36R was endocytosed and recycled to the plasma membrane. In the presence of IL-36, IL-36R increased accumulation in LAMP1+ lysosomes. Endocytosis predominantly used a clathrin-mediated pathway, and the accumulation of the IL-36R in lysosomes did not result in increased receptor turnover. The ubiquitin-binding Tollip protein contributed to IL-36R signaling and increased the accumulation of both subunits of the IL-36R.
    Print ISSN: 0021-9258
    Electronic ISSN: 1083-351X
    Topics: Biology , Chemistry and Pharmacology
    Published by The American Society for Biochemistry and Molecular Biology (ASBMB)
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