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Taste responsiveness to two steviol glycosides in three species of nonhuman primates

Current Zoology 2018年第1期64卷 63-68页

作者： Sandra NICKLASSON Desiree SJOSTROM mats amundin Daniel ROTH Laura Teresa HERNANDEZ SALAZAR iatthias LASKA IFM Biology Linkoping University Linkoping SE-581 83 Kolmarden Wildlife Park Kolmarden SE-681 92 Boras Zoo Boras SE-501 13 Sweden Instituto de Neuro-Etologia Universidad Veracruzana Xalapa Veracruz C.P. 91000 Mexico

Primates have been found to differ widely in their taste perception and studies suggest that a co-evolution between plant species bearing a certain taste substance and primate species feeding on these plants may contribute to such between-species differences. Considering that only platyrrhine primates, but not catarrhine or prosimian primates, share an evolutionary history with the neotropical plant , we assessed whether members of these three primate taxa differ in their ability to perceive and/or in their sensitivity to its two quantitatively predominant sweet-tasting substances. We found that not only neotropical black-handed spider monkeys, but also paleotropical black-and-white ruffed lemurs and Western chimpanzees are clearly able to perceive stevioside and rebaudioside A. Using a two-bottle preference test of short duration, we found that preferred concentrations as low as 0.05 mM stevioside and 0.01 mM rebaudioside A over tap water. Taste preference thresholds of were similar to those of the spider monkeys, with 0.05 mM for stevioside and 0.03 mM for rebaudioside A, whereas was slightly less sensitive with a threshold value of 0.1 mM for both substances. Thus, all three primate species are, similar to human subjects, clearly more sensitive to both steviol glycosides compared to sucrose. Only the spider monkeys displayed concentration-response curves with both stevioside and rebaudioside A which can best be described as an inverted U-shaped function suggesting that , similar to human subjects, may perceive a bitter side taste at higher concentrations of these substances. Taken together, the results of the present study do not support the notion that a co-evolution between plant and primate species may account for between-species differences in taste perception of steviol glycosides.

关键词：品尝植物种类应答人类进化历史持续时间味道公里

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Design and Benchmark Tests of a Multi-Channel Hydrophone Array System for Dolphin Echolocation Recordings

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Open Journal of Acoustics 2012年第3期2卷 121-130页

作者： Josefin Starkhammar mats amundin Johan Nilsson Tomas Jansson Monica Almqvist Hans W. Persson Department of Measurement Technology and Industrial Electrical Engineering Lund University Lund Sweden

This paper describes in depth the design and application considerations of a computer based measurement system enabling 1 MS/s simultaneous sampling of 47 hydrophones for cross sectional recordings of echolocation beams of toothed whales (Odontocetes). An earlier prototype version of the system has previously only been presented as a brief proof of principle that did not offer a complete description of the software and hardware solution. Crucial hardware and software design considerations of the further developed system include the re-arm times of the burst mode sampling and the dual-core distributed execution of the software components. The rearm time was measured to 283 μs, using a 550 μs long sample window around each click. This enables burst mode sampling of clicks with an inter-click interval as short as 833 μs. It is shown through both synthetic benchmark tests of the system and through field measurements of bottlenose dolphins (Tursiops truncatus) and a beluga whale (Delphinapterus leucas) that it is capable of acquiring, analyzing and visualizing data in run-time. It operates effectively also in highly reverberant surroundings like concrete pools and shallow waters. Burst mode sampling allows the system to block reflections with 0.3 - 0.5 m longer propagation paths than the direct path. It is suggested that the system’s compliance to reverberant recording sites makes it valuable in future dolphin echolocation studies.

关键词： Dolphin Echolocation Measurement System Hydrophone Array Burst Mode Sampling

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High-rate metal-free MXene microsupercapacitors on paper substrates

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Carbon Energy 2024年第5期6卷 94-104页

作者： Han Xue Po‐Han Huang Lee‐Lun Lai Yingchun Su Axel Strömberg Gaolong Cao Yuzhu Fan Sergiy Khartsev mats Göthelid Yan‐Ting Sun Jonas Weissenrieder Kristinn BGylfason Frank Niklaus Jiantong Li School of Electrical Engineering and Computer Science KTH Royal Institute of TechnologyStockholmSweden School of Engineering Sciences KTH Royal Institute of TechnologyStockholmSweden

MXene is a promising energy storage material for miniaturized microbatteries and microsupercapacitors(MSCs).Despite its superior electrochemical performance,only a few studies have reported MXene-based ultrahigh-rate(>1000 mV s^(−1))on-paper MSCs,mainly due to the reduced electrical conductance of MXene films deposited on ***,ultrahigh-rate metal-free on-paper MSCs based on heterogeneous MXene/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)(PEDOT:PSS)-stack electrodes are fabricated through the combination of direct ink writing and femtosecond laser *** a footprint area of only 20 mm^(2),the on-paper MSCs exhibit excellent high-rate capacitive behavior with an areal capacitance of 5.7 mF cm^(−2)and long cycle life(>95%capacitance retention after 10,000 cycles)at a high scan rate of 1000 mV s^(−1),outperforming most of the present on-paper ***,the heterogeneous MXene/PEDOT:PSS electrodes can interconnect individual MSCs into metal-free on-paper MSC arrays,which can also be simultaneously charged/discharged at 1000 mV s^(−1),showing scalable capacitive *** heterogeneous MXene/PEDOT:PSS stacks are a promising electrode structure for on-paper MSCs to serve as ultrafast miniaturized energy storage components for emerging paper electronics.

关键词： direct ink writing femtosecond laser scribing MXene on-paper microsupercapacitors PEDOT:PSS ultrahigh rate capability

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Glaciation-induced features or sediment gravity flows——An analytic review

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Journal of Palaeogeography 2023年第4期12卷 487-545页

作者： mats O.Molen Umea FoU AB Vallmov 61S-90352 Ume aSweden

For more than 150 years, geologic characteristics claimed to be evidence for pre-Pleistocene glaciations have been debated. Advancements in recent decades, in understanding features generated by mainly glacial and mass flow processes, are here reviewed. Detailed studies of data offered in support of prePleistocene glaciations have led to revisions that involve environments of mass movements. Similarities and differences between Quaternary glaciogenic and mass movement features are examined, to provide a more systematic methodology for analysing the origins of more ancient deposits. Analyses and evaluation of data are from a) Quaternary glaciogenic sediments, b) formations which have been assigned to pre-Pleistocene glaciations, and c) formations with comparable features associated with mass movements(and occasionally tectonics). Multiple proxies are assembled to develop correct interpretations of ancient strata. The aim is not per se to reinterpret specific formations and past climate changes, but to enable data to be evaluated using a broader and more inclusive conceptual *** occurring pre-Pleistocene features interpreted to be glaciogenic, have often been shown to have few or no Quaternary glaciogenic equivalents. These same features commonly form by sediment gravity flows or other non-glacial processes, which may have led to misinterpretations of ancient deposits. These features include, for example, environmental affinity of fossils, grading, bedding, fabrics, size and appearance of erratics, polished and striated clasts and surfaces(“pavements”), dropstones, and surface *** decades of progress in research relating to glacial and sediment gravity flow processes have resulted in proposals by geologists, based on more detailed field data, more often of an origin by mass movements and tectonism than *** most coherent data of this review, i.e., appearances of features produced by glaciation, sediment gravity flows and a fe

关键词： Diamictite Tillite Sediment gravity flow(SGF) Striation Groove Dropstone Paleoclimate Fossil vegetation Glaciogenic proxies Surface microtexture Late Paleozoic ice age

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Organic Semiconductor Interfaces and Their Effects in Organic Solar Cells

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Chinese Journal of Chemistry 2023年第24期41卷 3792-3805页

作者： Chuanfei Wang Weidong Li Qi Zeng Xianjie Liu mats Fahlman Qinye Bao School of Materials Science and Engineering Ocean University of ChinaQingdaoShandong266100 China School of Materials Science and Engineering Shanghai University of Engineering ScienceShanghai201620 China Laboratory of Organic Electronics ITNLinköping UniversityNorrköping60174 Sweden School of Physics and Electronic Science East China Normal UniversityShanghai200241 China Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception Institute of OptoelectronicsFudan UniversityShanghai200433 China

Energy levels and energy level alignment at interfaces play a decisive role in designing efficient and stable organic solar cells(OSCs).In this review two usually used technologies in organic photovoltaic communities for measuring energy levels of organic semiconductors,photoelectron spectroscopy and electrochemical methods,are introduced,and the relationships between the values obtained from the corresponding techniques are *** energy level and energy level alignment across the interfaces involved in solution processed organic photovoltaics are described,and the corresponding integer charge transfer model for predicting and explaining energy level alignment is *** effects of the interface properties in designing efficient binary and ternary OSCs were *** effects of environmental factors mainly including water vapor,oxygen gas and thermal annealing on energy levels and energy level alignment involved in photoactive layers,and the subsequent effects on the corresponding OSC properties are given.

关键词： Organic solar cells Interfaces Donor-acceptor systems Electron transfer Electronic Structures Efficiency

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*** Provenance-aware and Reproducible Workspaces

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Data Intelligence 2022年第2期4卷 243-258页

作者： Alessandro Spinuso mats Veldhuizen Daniele Bailo Valerio Vinciarelli Tor Langeland Koninkljk Nederlands Meteorologisch Instituut De BiltUtrecht 3731GAThe Netherlands Istituto Nazionale Geofisica e Vulcanologia RomeLazio 00143Italy NORCE Norwegian Research Centre AS BergenHordaland NO-5838Norway

Modern interactive tools for data analysis and visualisation are designed to expose their functionalities as a service through the *** present in this paper a Web API(SWIRRL)that allows Virtual Research Environments(VREs)to easily integrate such tools in their websites and re-purpose them to their *** APl deals,on behalf of the clients,with the underlying complexity of allocating and managing resources within a target cloud *** combining storage and containerised services,offering analysis notebooks and other visualisation software,the APl creates dedicated working sessions on-demand,which can be accessed *** to the API's support for workflow execution,SWIRRL workspaces can be automatically populated with data of interest collected from external data *** system keeps track of updates and changes affecting the data and the tools by adopting versioning and standard provenance *** are provided with interactive controls enabling traceabilityand recovery actions,including the possibility of creating executable snapshots of their *** is built in cooperation with two research infrastructures in the field of solid earth science and climate data *** report on the particularadoptions and use cases.

关键词： Productivity Data-analysis Reproducibility Provenance Cloud-computing

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Use of Fossil Energy Will Increase Atmosphere and Earth Land Temperature

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Atmospheric and Climate Sciences 2022年第2期12卷 264-269页

作者： mats Lindgren KTH Royal Institute of Technology Stockholm Fellow of the Royal Swedish Academy of Engineering Sciences Stockholm Sweden

Energy used for industrial production, buildings and transport will be accumulated in Atmosphere and Earth land. Global use of energy is known and documented for a long period of time and proportion of fossil and renewable energy is also known. Calculated accumulated energy in Earth land from 1971 to 2018 corresponds to 40% of IPCC Global Energy Inventory and calculated Atmosphere temperature increase from 1971 to 2018 corresponds to 100% of actual measurements.

关键词： Use of Energy Accumulated Energy in Atmosphere and Earth Land Global Energy Inventory

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On the turbulent heat fluxes:A comparison among satellite-based estimates,atmospheric reanalyses,and in-situ observations during the winter climate over Arctic sea ice

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Advances in Climate Change Research 2023年第3期14卷 347-362页

作者： Zhi-Lun ZHANG Feng-Ming HUI Timo VIHMA mats A.GRANSKOG Bin CHENG Zhuo-Qi CHEN Xiao CHENG School of Geospatial Engineering and Science Sun Yat-sen University Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China Key Laboratory of Comprehensive Observation of Polar Environment(Sun Yat-sen University) Ministry of EducationZhuhai 519082China University Corporation for Polar Research Beijing 100032China Finnish Meteorological Institute Helsinki 00560Finland Norwegian Polar Institute Fram CentreTromsøN-9296Norway

The surface energy budget is crucial for Arctic sea ice mass balance calculation and climate systems,among which turbulent heat fluxes significantly affect the airesea exchanges of heat and moisture in the atmospheric boundary *** observations(*** and APPX)and atmospheric reanalyses(e.g.,ERA5)are often used to represent components of the energy budget at regional and pan-Arctic ***,the uncertainties of the satellite-based turbulent heat fluxes are largely unknown,and cross-comparisons with reanalysis data and insitu observations are *** this study,satellite-based turbulent heat fluxes were assessed against in-situ observations from the N-ICE2015 drifting ice station(north of Svalbard,JanuaryeJune 2015)and ERA5 *** turbulent heat fluxes were calculated by two approaches using the satellite-based ice surface temperature and radiative fluxes,surface atmospheric parameters from ERA5,and snow/sea ice thickness from the pan-Arctic Ice Ocean Modeling and Assimilation System(PIOMAS).We found that the bulk-aerodynamic formula based results could better capture the variations of turbulent heat fluxes,while the maximum entropy production based estimates are comparable with ERA5 in terms of root-mean-square error(RMSE).CERES-based estimates outperform the APP-X-based ones but ERA5 performs the best in all seasons(RMSE of 18 and 7 W m^(-2)for sensible and latent heat flux,respectively).The aireice temperature/humidity differences and the surface radiation budget were found the primary driving factors in the bulk-formula method and maximum entropy production(MEP)method,***,errors in the surface and near-surface temperature and humidity explain almost 50%of the uncertainties in the estimates based on the bulk-formula,whereas errors in the net radiative fluxes explain more than 50%of the uncertainties in the MEP-based results.

关键词： Arctic sea ice Surface energy budget Turbulent heat flux Satellite observation Reanalysis Bulk-aerodynamic formula Maximum entropy production

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Rethinking the standard trans-cortical approaches in the light of superficial white matter anatomy

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Neural Regeneration Research 2015年第12期10卷 1906-1909页

作者： Francesco Latini mats Ryttlefors Department of Neuroscience and Neurosurgery Uppsala University

A better comprehension of the superficial white matter organization is important in order to minimize potential and avoidable damage to long or intermediate association fibre bundles during every step of a surgical *** recently proposed a technique for cadaver specimen preparation,which seems able to identify a more systematic organization of the superficial white matter ***,the use of the physiological intracranial vascular network for the fixation process allowed us to constantly show main vascular landmarks associated with white matter *** three examples of standard approaches to eloquent areas are herein reanalyzed starting from the first superficial *** insights into the possible surgical trajectories and subsequent quantitative damages of both vessels and white matter fibres can help readapt even the most standard and widely accepted approach trough the brain cortex.A more detailed study of these fine anatomical details may become in the near future a fundamental part of the neurosurgical training and the preoperative planning.

关键词： superficial white matter transcortical approach white matter vascular architecture whitematter dissection eloquent areas

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Consequences of Insufficient Selectivity in Quantitative and Qualitative Chemical Analysis

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Journal of Analytical Sciences, Methods and Instrumentation 2023年第2期13卷 13-25页

作者： mats Larsson Göran Nilsson Department of Physics Alba Nova University Center Stockholm University Stockholm Sweden

A problem in chemical analysis in connection with measurements of a substance normally occurring in a sample, or identification of a substance which should not exist in a sample, is insufficient selectivity. In this article, we analyze this problem and propose remedies. We use a real doping case to illustrate how chemical noise causes a serious selectivity problem, probably causing a false positive outcome.

关键词： Chemical Analysis Quantitative and Qualitative Selectivity Chemical Measurement Procedures Measurement Errors Chemical Noise

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