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  • 1
    Online Resource
    Online Resource
    DNA Beyond Genes : From Data Storage and Computing to Nanobots, Nanomedicine, and Nanoelectronics (2020)
    Cham :Springer International Publishing :
    Details
    Keywords: Biotechnology. ; Nanotechnology. ; Microtechnology. ; Microelectromechanical systems. ; Genetics. ; Biotechnology. ; Nanotechnology. ; Microsystems and MEMS. ; Genetics and Genomics. ; Chemical Bioengineering.
    Description / Table of Contents: Introduction: DNA basics (a primer on DNA) -- Hiding and storing messages and data in DNA -- DNA as a nanoscale building material -- DNA machines and nanobots -- DNA-based nanoelectronics -- Concluding remarks.
    Abstract: This is the first book portraying to a wide readership many fields of DNA in the world of materials altogether in a single volume. The book provides underlying concepts and state-of-art developments in the emerging fields of DNA electronics, structural DNA nanotechnology, DNA computing and DNA data storage, DNA machines and nanorobots. Future possibilities of innovative DNA-based technologies, such as DNA cryptography, DNA identity tags, DNA nanostructures in biosensing and nanomedicine, as well as DNA-based nanoelectronics are all covered, too. This book is valuable for university students studying engineering and technology; biotech, nanotech, and medical device R&D managers, practitioners and investors; and IP analysts who would like to extend their background in advanced DNA technologies. It is nicely illustrated, which makes it very readable, and it conveys science and principles in a lively language to appeal to a broad audience, from professionals and academics to students and lay readers. Advance Praise for DNA Beyond Genes: “Most students of DNA, and lay readers as well, are interested in the absolutely essential role it plays in biology. However, the properties which make DNA the carrier of genetic information also make it an extraordinary material that can be used as the backbone for a wide variety of nanoengineering applications – these range from information storage and computation to molecular machines and devices to artfully designed logos and symbols. The perfect self-recognition of DNA sequences makes it an ideal building block to synthesize more and more elaborate constructions and imaginative scientists have probably only just scratched the surface of what can eventually be created. Here for the first time in this wonderful book Vadim Demidov explores the full range of the non-biological applications of DNA.” Charles R. Cantor Professor Emeritus of Biomedical Engineering, Boston University Member of the USA National Academy of Sciences.
    Type of Medium: Online Resource
    Pages: XX, 107 p. 66 illus., 63 illus. in color. , online resource.
    Edition: 1st ed. 2020.
    ISBN: 9783030364342
    URL: https://doi.org/10.1007/978-3-030-36434-2
    DOI: 10.1007/978-3-030-36434-2
    DDC: 660.6
    Language: English
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    E-BOOKS (AWI ONLY)
  • 2
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    Express analysis of DNA photosensitizers (1991)
    Oxford University Press
    Details
    Publication Date: 1991-01-01
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
    Published by Oxford University Press
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    PAPER CURRENT
  • 3
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    Geochemical signatures of pingo ice and its origin in Grøndalen, west Spitsbergen (2019)
    Copernicus
    Details
    Publication Date: 2019-11-28
    Description: Pingos are common features in permafrost regions that form by subsurface massive-ice aggradation and create hill-like landforms. Pingos on Spitsbergen have been previously studied to explore their structure, formation timing and connection to springs as well as their role in postglacial landform evolution. However, detailed hydrochemical and stable-isotope studies of massive-ice samples recovered by drilling have yet to be used to study the origin and freezing conditions in pingos. Our core record of 20.7 m thick massive pingo ice from Grøndalen is differentiated into four units: two characterised by decreasing δ18O and δD and increasing d (units I and III) and two others showing the opposite trend (units II and IV). These delineate changes between episodes of closed-system freezing with only slight recharge inversions of the water reservoir and more complicated episodes of groundwater freezing under semi-closed conditions when the reservoir was recharged. The water source for pingo formation shows similarity to spring water data from the valley with prevalent Na+ and HCO3- ions. The sub-permafrost groundwater originates from subglacial meltwater that most probably followed the fault structures of Grøndalen and Bøhmdalen. The presence of permafrost below the pingo ice body suggests that the talik is frozen, and the water supply and pingo growth are terminated. The maximum thaw depth of the active layer reaching the top of the massive ice leads to its successive melt with crater development and makes the pingo extremely sensitive to further warming.
    Print ISSN: 1994-0416
    Electronic ISSN: 1994-0424
    Topics: Geography , Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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  • 4
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    Pingo development in Grøndalen, West Spitsbergen (2019)
    Copernicus
    Details
    Publication Date: 2019-05-07
    Description: Pingos are common features in permafrost regions that form by subsurface massive-ice aggradation and create hill-like landforms. Pingos on Spitsbergen have been previously studied to explore their structure, formation timing, connection to springs as well as their role in post-glacial landform evolution. However, detailed hydrochemical and stable-isotope studies of massive ice samples recovered by drilling has yet to be used to study the origin and freezing conditions in pingos. Our core record of 20.7 m thick massive pingo ice from Grøndalen differentiates into four units: two characterised by decreasing δ18O and δD and increasing d (units I and III), and two others show the opposite trend (units II and IV). These delineate changes between episodes of closed-system freezing with only slight recharge inversions of the water reservoir, and more complicated episodes of groundwater freezing under semi-closed conditions when the reservoir got recharged. The water source for pingo formation shows similarity to spring water data from the valley with prevalent Na+ and HCO3- ions. The sub-permafrost groundwater originates from subglacial meltwater that most probably followed the fault structures of Grøndalen and Bøhmdalen. Today the pingo of Grøndalen is relict and degrading due to warming surface temperatures. The state of pingos on Spitsbergen depends on complex interaction of climate, permafrost and groundwater hydrology conditions, and is thus highly sensitive to climate warming.
    Print ISSN: 1994-0432
    Electronic ISSN: 1994-0440
    Topics: Geography , Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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  • 5
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    Geocryological and Hydrogeological Conditions of the Western Part of Nordenskiold Land (Spitsbergen Archipelago) (2020)
    Springer
    Details
    Publication Date: 2020-12-01
    Print ISSN: 0001-4338
    Electronic ISSN: 1555-628X
    Topics: Geosciences , Physics
    Published by Springer
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  • 6
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    Pingo Nori (Spitsbergen) massive ice isotope and chemical content of permafrost core Grondalen 13 (2021)
    PANGAEA
    Details
    Publication Date: 2023-12-05
    Description: The drilling of the 10.5 m high Nori pingo that stands at 32 m asl in Grøndalen Valley (Spitsbergen) performed in April 2019 reached a depth of 21.8 m bs (core #13, starting from 42.5 m asl, 77.99483 °N, 14.59009 °E) and revealed 16.1 m thick massive ice. The core was obtained with a portable gasoline-powered rotary drilling rig (UKB 12/25, Vorovskiy Machine Factory, Ekaterinburg, Russia). The core pieces with diameter 112-76 mm were lifted for sampling to the surface every 30–50 cm. After documentation and cryolithological description core pieces were sealed in zip lock bags. Ice samples were split in two parts - one part for stable isotope analyses, another part for ion content measurement. They were kept frozen for transportation while sediment samples were kept unfrozen. Moisture content was analyzed in laboratory by measuring sediment samples weight before and after drying. The stable water isotope composition (δ18O and δD) of massive pingo ice was analyzed at the Climate and Environmental Research Laboratory (CERL, Arctic and Antarctic Research Institute, St. Petersburg, Russia) using a Picarro L2120- i analyzer. After every five samples the working standard (SPB-2, δ18O = -9.66 ‰ and δD = -74.1 ‰) was measured. SPB-2 is made of distilled St. Petersburg tap water and is calibrated against the International Atomic Energy Agency (IAEA) standards VSMOW-2 (Vienna Standard Mean Ocean Water 2), GISP (Greenland Ice Sheet Precipitation), and SLAP-2 (Standard Light Antarctic Precipitation 2). The reproducibility of the results is 0.08 ‰ for δ18O and 0.4 ‰ for δD and was assessed by re-measuring a random selection of 10% of the total samples. The measurement error is thus 1-2 orders of magnitude less than the natural isotopic variability of pingo ice, which is satisfactory for the purpose of this study. The δ18O and δD values are given as per mil (‰) difference to the VSMOW-2 standard. The deuterium excess (d) is calculated as d = δD - 8δ18O29. The ion content of sedimentary permafrost samples from core #13 was estimated after water extraction at the analytical laboratory of RAE-S, Barentsburg. The material was dried and sieved at 1 mm. About 20 g of the sediment were suspended in 100 ml of de-ionized water and filtered through 0.45 μm nylon mesh within 3 minutes after stirring. Electrical conductivity (EC, measured in μS cm-1) and pH values were estimated with a Mettler Toledo Seven Compact S 220. EC values were transformed automatically by the instrument into general ion content (mineralization) values given as mg L-1. Major anions and cations in the water extracts were analyzed by an ion chromatograph (Shimadzu LC-20 Prominence) equipped with the Shimadzu CDD-10AVvp conductometric detector and ion exchange columns for anions (Phenomenex Star-ion A300) and for cations (Shodex ICYS-50). Bicarbonate content was measured by a Shimadzu TOC-L analyzer via catalytic oxidizing at +680o C and subsequent infrared detecting. Melted pingo ice samples from core #13 and spring water samples were analyzed after filtration through 0.45 μm nylon mesh on the same equipment using the same techniques for pH, EC, and ion composition as for sedimentary permafrost samples. Analyses and research were aimed at determining major characteristics of the Nori pingo including its internal structure, groundwater source, and geochemical and isotopic stages of formation.
    Keywords: Ammonium; Bbg_13; Bicarbonate ion; Bromine; Calcium; Carbon, inorganic, total; Carbon, organic, particulate; Carbon, organic, total; Chloride; Conductivity, electrical; DEPTH, sediment/rock; Description; Deuterium excess; drilling; Dry mass; Fluoride; Grondalen_13; Grøndalen Valley, Svalbard; Hydrochemistry; Laboratory code/label; Lithologic unit/sequence; Magnesium; massive ice; Nitrate; Nitrite; Nitrogen, total; Nori; Number; Permafrost; pH; Phosphate; Phosphorus; Pingo; Portable drill, Drilling Technology Plant, UKB-12/25; Potassium; Salinity; Sample code/label; Sample mass; Sodium; Sodium and potassium ions; Spitsbergen; Stable isotopes; Sulfate; Water content, wet mass; Wet mass; δ18O, water; δ Deuterium, water
    Type: Dataset
    Format: text/tab-separated-values, 1289 data points
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  • 7
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    Hydrochemistry of water extracts and of ground ice and ice contents of permafrost cores from Barentburg area (2023)
    PANGAEA
    Details
    Publication Date: 2024-01-04
    Description: Parts of the analyses have been carried out in the laboratories of the Russian Scientific Arctic Expedition on Spitsbergen Archipelago (RAE-S) Barentsburg Station. Gravimetric moisture content (ice content) was measured by weighing samples before and after drying at 50°C to relate the weight loss to the total weight of dry samples, expressed as weight percentage (wt%). Hydrochemical analyses of sedimentary permafrost samples was undertaken after water extraction. The material was dried and sieved at 1 mm. About 20 g of the sediment were suspended in 100 ml de-ionised water and filtered through 0.45 µm nylon mesh within 3 minutes after stirring.
    Keywords: Barentsburg; Bbg_1; Bbg_10; Bbg_11; Bbg_13; Bbg_14; Bbg_15; Bbg_16; Bbg_17; Bbg_18; Bbg_19; Bbg_2; Bbg_20; Bbg_3; Bbg_4; Bbg_5; Bbg_6; Bbg_7; Bbg_8; Bbg_9; Bicarbonate ion; Calcium; Chloride; Conductivity, electrolytic; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; ELEVATION; Event label; Fluoride; Grondalen_10; Grondalen_11; Grondalen_13; Grondalen_9; ground ice; Grøndalen Valley, Svalbard; Grønfjord, Svalbard; Ice content, gravimetric; Iradalen Valley, Svalbard; Isfjord, Svalbard; Latitude of event; Liquid chromatograph, Shimadzu, LC-20 Prominence; coupled with Conductivity Detector, Shimadzu, CDD-10AVP; coupled with ion exchange columns for anions, Phenomenex, Star-ion A300; Liquid chromatograph, Shimadzu, LC-20 Prominence; coupled with Conductivity Detector, Shimadzu, CDD-10AVP; coupled with ion exchange columns for cations, Shodex, IC YS-50; Longitude of event; Magnesium; Nordenskiöld Land, Svalbard; OUTCROP; outcrop_GD1; Outcrop sample; Permafrost; pH; pH/Ionmeter, Mettler Toledo, SevenCompact S220; Portable drill, Drilling Technology Plant, UKB-12/25; Potassium; radiocarbon ages; Sample code/label; sediment analysis; Sodium; Spitsbergen; Sulfate; water extracts; Weighing samples before and after drying at 50°C
    Type: Dataset
    Format: text/tab-separated-values, 4420 data points
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  • 8
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    Sedimentological data of permafrost cores from Barentburg area (2023)
    PANGAEA
    Details
    Publication Date: 2024-01-04
    Description: The geochronology was established on the basis of Accelerator Mass Spectrometry (AMS) radiocarbon dates using a Mini Carbon Dating System (MICADAS) implemented at Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI). Further preparation for AMS radiocarbon dating bulk samples were carried out by the Laboratory of Radiocarbon dating and electron microscopy of the Institute of Geography of the Russian Academy of Sciences. Their radiocarbon ages were measured by accelerated mass spectrometry (AMS) at the Center for Applied Isotope Studies of the University of Georgia (USA) using the 1.5SDH Pelletron AMS. Sediments were freeze-dried manually homogenized, and split into sub-samples for further analyses: grain-size distribution, mass-specific magnetic susceptibility, total elemental carbon (TC) and nitrogen contents (TN), total organic carbon content (TOC), the δ¹³C of TOC. The total inorganic carbon (TIC) content was calculated by subtracting TOC from TC. For TOC and δ¹³C analyses, samples were decalcified for 3 h at 95°C by adding 1.3 N HCl.
    Keywords: Accelerator mass spectrometry (AMS), radiocarbon ages; Age, 14C calibrated, IntCal20 (Reimer et al. 2020); Age, comment; Age, dated; Age, dated material; Age, dated standard deviation; Atomic absorption spectrophotometry (RA-915+ with PYRO-915), Zeeman; Barentsburg; Bbg_1; Bbg_10; Bbg_11; Bbg_13; Bbg_14; Bbg_15; Bbg_16; Bbg_17; Bbg_18; Bbg_19; Bbg_2; Bbg_20; Bbg_3; Bbg_4; Bbg_5; Bbg_6; Bbg_7; Bbg_8; Bbg_9; Calculated; Calculated, TC minus TOC; Calendar age; Calendar age, maximum/old; Calendar age, minimum/young; Carbon, inorganic, total; Carbon, organic, total; Carbon, organic, total/Nitrogen, total ratio; Carbon, total; Carbon and nitrogen and sulfur (CNS) analyzer, Elementar, Vario MAX; Carbon and nitrogen and sulfur (CNS) isotope element analyzer, Elementar, Vario EL III; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; ELEVATION; Event label; Grain size, mean; Gravel; Grondalen_10; Grondalen_11; Grondalen_13; Grondalen_9; ground ice; Grøndalen Valley, Svalbard; Grønfjord, Svalbard; Iradalen Valley, Svalbard; Isfjord, Svalbard; Laboratory code/label; Latitude of event; Longitude of event; Magnetic susceptibility, mass; Magnetic susceptibility meter, Bartington, MS2; coupled with Dual Frequency Sensor, Bartington, MS2B; Mass spectrometer, Finnigan, DELTA S; coupled with elemental analyzer, Thermo Scientific, Flash 2000; coupled with universal continuous flow interface, Thermo Scientific, ConFlo IV; Mercury; Nitrogen, total; Nordenskiöld Land, Svalbard; OUTCROP; outcrop_GD1; Outcrop sample; Permafrost; Portable drill, Drilling Technology Plant, UKB-12/25; radiocarbon ages; Sample code/label; Sand; sediment analysis; Silt; Size fraction 〈 0.002 mm, clay; Size fraction 〉 2 mm, gravel; Size fraction 0.063-0.002 mm, silt, mud; Size fraction 2.000-0.063 mm, sand; Spitsbergen; Vibratory sieve shaker, Fritsch, ANALYSETTE 3; Laser diffraction particle size analyser, Malvern, Mastersizer 3000; water extracts; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 5025 data points
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    DATA PANGAEA
  • 9
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    Core description and samplesof permafrost cores from Barentburg area (2023)
    PANGAEA
    Details
    Publication Date: 2024-01-04
    Description: The coordinates of the drilling points and of the outcrop, the depths of the drill holes below the surface and the cryolithological description as well as the sample names in the individual drill core segments are shown.
    Keywords: Barentsburg; Bbg_1; Bbg_10; Bbg_11; Bbg_13; Bbg_14; Bbg_15; Bbg_16; Bbg_17; Bbg_18; Bbg_19; Bbg_2; Bbg_20; Bbg_7; Bbg_8; Bbg_9; Depth, bottom/max; Depth, top/min; Description; Event label; Grondalen_10; Grondalen_11; Grondalen_13; Grondalen_9; ground ice; Grøndalen Valley, Svalbard; Grønfjord, Svalbard; Iradalen Valley, Svalbard; Isfjord, Svalbard; Latitude of event; Longitude of event; Nordenskiöld Land, Svalbard; OUTCROP; outcrop_GD1; Outcrop sample; Permafrost; Portable drill, Drilling Technology Plant, UKB-12/25; radiocarbon ages; sediment analysis; Spitsbergen; water extracts
    Type: Dataset
    Format: text/tab-separated-values, 783 data points
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  • 10
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    Sediment and ice characteristics of permafrost cores from Barentburg area, Westspitsbergen (2023)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: To gain new understanding in this context a total of 19 drill cores complemented by one natural exposure reaching depths below surface between 5 and 25 m was studied, corresponding to sampling heights between 74 m above sea level and 4 m below sea level. The drill transect stretches along about 20 km from the marine terraces at the Isfjorden, along the Grønfjorden and the Grøndalen and Iradalen valleys in the wider area of Barentsburg. Detailed cryolithological descriptions, hydrochemical and sedimentological analyses, and radiocarbon dating were applied to deduce the spatial and temporal evolution of regional permafrost after deglaciation and sea-level adjustment.
    Keywords: Barentsburg; ground ice; Permafrost; radiocarbon ages; sediment analysis; Spitsbergen; water extracts
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
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