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  1. Extraction of emotional prosody from telephone calls to hospital emergency departments
    Autor*in: Wei, Dongjun; Embarki, Mohamed; Barakat, Oussama; Vaucherey, Coralie; Desmettre, Thibaut; Marx, Tania; Robert, Stephan
    Erschienen: 2023
    Verlag:  HAL CCSD ; Guarant International.

    This study is based on the exploitation of telephone calls to hospital emergency departments in order to train artificial intelligence tools for the automatic recognition of vocal emotions for the purpose of improving emergency medical regulation.... mehr

     

    This study is based on the exploitation of telephone calls to hospital emergency departments in order to train artificial intelligence tools for the automatic recognition of vocal emotions for the purpose of improving emergency medical regulation. The main objective is to extract the most characteristic acoustic cues of vocal emotions. Very limited samples were selected from the audio databases of two University Hospitals in the Jura Arc (CHRU of Besançon in France and CHUV of Lausanne in Switzerland). Only extracts containing linguistic vocalemotions with a negative polarity (angst, anger, embarrassment and sadness) were retained for the study.These extracts were segmented and labeled, and their acoustic parameters (F0, intensity and duration) weremeasured manually. The preliminary results show that F0 modulations seem more accurate to discriminate the four vocal emotions.

     
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    Übergeordneter Titel: https://hal.science/hal-04182004 ; 1, Guarant International., pp.1551-1555, 2023, Proceedings of the 20th International Congress of Phonetic Sciences, 978-80-908 114-2-3
    Schlagworte: vocal emotion; emergency medical regulation; artificial intelligence; [SHS]Humanities and Social Sciences; [SCCO]Cognitive science
  2. The new University of Duisburg-Essen diatom digital image training data set (UDE did it v1.0)
    Autor*in: Kloster, Michael; Burfeid-Castellanos, Andrea; Vidacović, Danijela; Mayombo, Ntambwe, Albert Serge; Dani, Mimoza; Venkataramanan, Aishwarya; Pradalier, Cedric; Laviale, Martin; Beszteri, Bánk
    Erschienen: 2023
    Verlag:  HAL CCSD

    International audience ; Here, we introduce a collection of more than 80,000 light microscopy images of individual diatom valves or frustules, covering a broad range of taxa and morphology by more than 300 samples from 15 different river and lake... mehr

     

    International audience ; Here, we introduce a collection of more than 80,000 light microscopy images of individual diatom valves or frustules, covering a broad range of taxa and morphology by more than 300 samples from 15 different river and lake ecotypes. The diatoms were imaged at high resolution (< 0.1 µm/pixel) by transmitted light bright-field microscopy, with focus stacking to artificially increase focal depth up to 25 µm, allowing simultaneous observation of valve ornamentation and shape. Taken from a real-world setting, the images partly also include debris, mineral particles or other diatoms. Four experts identified over 500 diatom species; more than 100 species are represented by at least 100 specimens and about 150 by at least 50 specimens each. This data set is about one order of magnitude larger than previously published diatom data sets, and its high interspecies similarity makes it a valuable resource e.g. for benchmarking fine-grained out-of-distribution (OOD) detection, on which we present preliminary results.

     
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    Übergeordneter Titel: 16th International Diatom Symposium ; https://hal.univ-lorraine.fr/hal-04187561 ; 16th International Diatom Symposium, Aug 2023, Yamagata, Japan
    Schlagworte: Diatoms; Machine learning; Computer vision; [SDE.BE]Environmental Sciences/Biodiversity and Ecology; [INFO]Computer Science [cs]
  3. Experimental demonstration of Surface Acoustic Wave propagation on α-GeO2 for wireless, passive sensor design
    Autor*in: Daniau, William; Salut, Roland; Friedt, Jean-Michel; Pena Revellez, Alexandra; Debray, Jérôme; Menaert, B; Armand, P; Papet, P; Penarier, A; Nouvel, P
    Erschienen: 2023
    Verlag:  HAL CCSD

    International audience ; On the path towards developing passive transducers for wireless sensing in high temperature >560◦C) environments.We experimentally demonstrate the design, manufacturing and interrogation of resonators patterned on GeO2... mehr

     

    International audience ; On the path towards developing passive transducers for wireless sensing in high temperature >560◦C) environments.We experimentally demonstrate the design, manufacturing and interrogation of resonators patterned on GeO2 substrates.

     
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    Übergeordneter Titel: 2023 IEEE International Frequency Control Symposium-European Frequency ; https://hal.science/hal-04224412 ; 2023 IEEE International Frequency Control Symposium-European Frequency, May 2023, Toyama, Japan
    Schlagworte: surface acoustic wave; resonator; passive wireless sensor; [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]; [SPI.OTHER]Engineering Sciences [physics]/Other
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    info:eu-repo/semantics/OpenAccess
  4. Biological relevance and targeting of i-motif DNA
    Autor*in: Bonnet, Hugues; Gomez, Dennis; Riou, Jean-François; Granhzam, Anton; Defrancq, Eric; Dejeu, Jérôme
    Erschienen: 2023
    Verlag:  HAL CCSD

    International audience ; i-Motifs of DNA (hereafter, i-DNA), known in vitro for nearly three decades, are unusual, four-stranded structures, in which cytosines are intercalated via a stack of hemi-protonated C–C base pairs (CH+:C) (Fig. 1A, B). Some... mehr

     

    International audience ; i-Motifs of DNA (hereafter, i-DNA), known in vitro for nearly three decades, are unusual, four-stranded structures, in which cytosines are intercalated via a stack of hemi-protonated C–C base pairs (CH+:C) (Fig. 1A, B). Some of these structures have been well characterized in vitro and, because i-DNA may mirror other four-stranded G-rich structures (G-quadruplexes) present in gene promoters or at telomeres, their biological relevance is being investigated.<br&gtHowever, our knowledge about i-DNA biology is still limited: the main challenges in this regard being the strong pH dependency, flexibility, and polymorphism of i-DNA, that introduce potential bias into studies. In particular, low-pH conditions that are required for the formation of i-DNA can lead to the protonation of many ligands (including small molecules or proteins), strongly increasing their non-specific nucleic acid binding. In this context, we have developed a peptide-DNA conjugate (Fig. 1C) being able to fold into a stable i-motif at room temperature and, most importantly, at near-neutral pH.1<br&gtThe stabilized mimic of the i-motif adopted by the telomeric sequence was used to study the interactions with already reported ligands (TMPyP4, mitoxantrone, IMC-48, berberine, etc) at physiologically relevant pH by Bio-Layer Interferometry (BLI) and CD. We demonstrated that none of the reported ligands were shown to discriminate between folded and unfolded i-motif structures.2<br&gtIn conclusion, the constrained i-motif reveals to be a powerful tool for studying i-motif structure.

     
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    Übergeordneter Titel: journées scientifiques du GDR ChemBio ; https://hal.science/hal-04224588 ; journées scientifiques du GDR ChemBio, Jun 2023, STRASBOURG, France
    Schlagworte: [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]; [SPI.MAT]Engineering Sciences [physics]/Materials; [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
  5. Biological relevance and targeting of i-motif DNA
    Autor*in: Bonnet, Hugues; Gomez, Dennis; Riou, Jean-François; Granhzam, Anton; Defrancq, Eric; Dejeu, Jérôme
    Erschienen: 2023
    Verlag:  HAL CCSD

    International audience ; i-Motifs of DNA (hereafter, i-DNA), known in vitro for nearly three decades, are unusual, four-stranded structures, in which cytosines are intercalated via a stack of hemi-protonated C–C base pairs (CH+:C) (Fig. 1A, B). Some... mehr

     

    International audience ; i-Motifs of DNA (hereafter, i-DNA), known in vitro for nearly three decades, are unusual, four-stranded structures, in which cytosines are intercalated via a stack of hemi-protonated C–C base pairs (CH+:C) (Fig. 1A, B). Some of these structures have been well characterized in vitro and, because i-DNA may mirror other four-stranded G-rich structures (G-quadruplexes) present in gene promoters or at telomeres, their biological relevance is being investigated.<br&gtHowever, our knowledge about i-DNA biology is still limited: the main challenges in this regard being the strong pH dependency, flexibility, and polymorphism of i-DNA, that introduce potential bias into studies. In particular, low-pH conditions that are required for the formation of i-DNA can lead to the protonation of many ligands (including small molecules or proteins), strongly increasing their non-specific nucleic acid binding. In this context, we have developed a peptide-DNA conjugate (Fig. 1C) being able to fold into a stable i-motif at room temperature and, most importantly, at near-neutral pH.1<br&gtThe stabilized mimic of the i-motif adopted by the telomeric sequence was used to study the interactions with already reported ligands (TMPyP4, mitoxantrone, IMC-48, berberine, etc) at physiologically relevant pH by Bio-Layer Interferometry (BLI) and CD. We demonstrated that none of the reported ligands were shown to discriminate between folded and unfolded i-motif structures.2<br&gtIn conclusion, the constrained i-motif reveals to be a powerful tool for studying i-motif structure.

     
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    Übergeordneter Titel: journées scientifiques du GDR ChemBio ; https://hal.science/hal-04224591 ; journées scientifiques du GDR ChemBio, Jun 2023, STRASBOURG, France
    Schlagworte: [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]; [SPI.MAT]Engineering Sciences [physics]/Materials; [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
  6. Facile collisional dissociation of N2 on a Si(111)-7x7 surface at room temperature
    Autor*in: Hamadeh, Ali; Geagea, Elie; Jeannoutot, Judicaël; Palmino, Frank; Breault, Nicolas; Rochefort, Alain; Hajjar-Garreau, Samar; Pirri, Carmelo; Thomas, Christophe M; Cherioux, Frédéric
    Erschienen: 2023
    Verlag:  HAL CCSD

    National audience ; L’une des stratégies bien maitrisée et répandue en solution est fondée sur l’emploi d’un photo-initiateur qui absorbe fortement la lumière et se transforme en agent déclencheur d’une réaction radicalaire de polymérisation... mehr

     

    National audience ; L’une des stratégies bien maitrisée et répandue en solution est fondée sur l’emploi d’un photo-initiateur qui absorbe fortement la lumière et se transforme en agent déclencheur d’une réaction radicalaire de polymérisation des monomères dispersés en solution. Notre travail s’inspire de ce comportement en solution pour tenter de le reproduire sur surface. La première étape consiste à trouver une combinaison d’un monomère et d’une surface permettant le développement d’une phase supramoléculaire métastable garantissant la diffusion des monomères pour réagir. La deuxième étape consiste à déposer sur la phase supramoléculaire précédemment créée un photo-initiateur capable de s’y adsorber et de déclencher la réaction de polymérisation photo-induite.

     
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    Übergeordneter Titel: Forum des Microscopies à Sonde Locale ; https://hal.science/hal-04233169 ; Forum des Microscopies à Sonde Locale, Apr 2023, OBERNAI, France
    Schlagworte: [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]; [SPI.MAT]Engineering Sciences [physics]/Materials; [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
  7. Performance et fiabilité des alliages métalliques amorphes base Cu-ZR pour des applications tribologiques
    Autor*in: Stoens, Solène; Colas, Guillaume; Cornuault, Pierre-Henri; Laffont, Paul; Daudin, Rémi; Lenain, Alexis
    Erschienen: 2023
    Verlag:  HAL CCSD

    International audience ; Les alliages métalliques amorphes (AMA) sont des alliages métalliques de composition complexe fabriqués par un processus de refroidissement rapide depuis l’état liquide, de manière à obtenir un matériau à l'état solide qui... mehr

     

    International audience ; Les alliages métalliques amorphes (AMA) sont des alliages métalliques de composition complexe fabriqués par un processus de refroidissement rapide depuis l’état liquide, de manière à obtenir un matériau à l'état solide qui présente la structure d’un verre. Les AMA ont un fort potentiel d'applications industrielles en micromécanique en raison de leurs excellentes propriétés mécaniques [1] (en particulier une limite élastique et une déformation élastique élevées), combinées à un très faible retrait et une excellente résistance à la corrosion. Un certain nombre d’études s’intéressent en particulier à la fabrication de micro-engrenages en AMA [2]. Cependant, les domaines micromécaniques ciblés requièrent des considérations tribologiques, en raison du rôle important du frottement et de l'usure aux micro-échelles.

     
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    Übergeordneter Titel: 34èmes Journées Internationales Francophones de Tribologie ; https://hal.science/hal-04233192 ; 34èmes Journées Internationales Francophones de Tribologie, May 2023, Villeneuve d'Ascq, France
    Schlagworte: [PHYS.MECA]Physics [physics]/Mechanics [physics]; [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]; [SPI.MAT]Engineering Sciences [physics]/Materials; [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
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    info:eu-repo/semantics/OpenAccess
  8. Approaching second-strain gradient elasticity with soft X-rays diffraction
    Autor*in: Chaalane, Amar; Cherioux, Frédéric; Luzet, Vincent; Joseph, Eric; Jaouen, Nicolas; Popescu, Horia; Fabre, Bruno; Amiot, Fabien
    Erschienen: 2023
    Verlag:  HAL CCSD

    International audience ; It is well established that downsizing mechanical structures make their surface-overvolume ratio much larger than for usual objects, so that their ability to interact with their environment is significantly augmented. This... mehr

     

    International audience ; It is well established that downsizing mechanical structures make their surface-overvolume ratio much larger than for usual objects, so that their ability to interact with their environment is significantly augmented. This has been particularly used in the development of cantilever sensors, where a surface energy change on one side induces the cantilever's bending. Even though this phenomenon has been implemented for a wide range of molecules, the modeling the mechanical response of a micromechanical structure to a surface energy change has been scarcely investigated. Second-strain gradient elasticity has been shown to naturally involve the equivalent of surface tension for solids, and thus seems particularly suited to model the deformation of solids subjected to a surface energy change. A toy model is first used to demonstrate the key role of the material in the chemo-mechanical transduction, thereby stressing the need for an adequate experimental identification procedure. First results from an original approach are reported herein. Beams made of a material driven by second-strain gradient elasticity are expected to display short-wavelength sinusoidal components in their displacement field. In order to experimentally validate this prediction, silicon nitride cantilevers of different thicknesses have been functionalized so that the surface energy is controlled by UV illumination. The resulting deformation has been probed using a simultaneous illumination in the soft X-rays range in transmission. The sinusoidal components of the displacement are shown to act as a diffraction grating and the observed diffraction peaks yield key information on the higher-grade elastic parameters, in line with theoretical predictions.

     
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    Übergeordneter Titel: MecaNano General Meeting 2023 ; https://hal.science/hal-04238208 ; MecaNano General Meeting 2023, Apr 2023, Madrid, Spain
    Schlagworte: [PHYS.MECA]Physics [physics]/Mechanics [physics]; [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]; [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]; [SPI.MAT]Engineering Sciences [physics]/Materials; [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
  9. Pourquoi de nouvelles maladies émergent ? En quoi la biodiversité est-elle importante ?
    Autor*in: Giraudoux, Patrick
    Erschienen: 2023
    Verlag:  HAL CCSD

    National audience mehr

     

    National audience

     
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    Übergeordneter Titel: Festival du climat ; https://hal.science/hal-04096992 ; Festival du climat, Municipalité de Pirey, May 2023, Pirey, France
    Schlagworte: pandémie; maladies émergentes; [SDV.EE]Life Sciences [q-bio]/Ecology; environment; [SDE.BE]Environmental Sciences/Biodiversity and Ecology
  10. Is oral microbiota implicated in taste? A shotgun metagenomics approach
    Autor*in: Licandro, Hélène; Truntzer, Caroline; Fromentin, Sebastien; Morabito, Christian; Pons, Nicolas; Martin, Christophe; Blottiere, Hervé M.; Neyraud, Eric
    Erschienen: 2023
    Verlag:  HAL CCSD

    International audience mehr

     

    International audience

     
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    Übergeordneter Titel: Saliva Symposium ; https://hal.inrae.fr/hal-04145515 ; Saliva Symposium, Toon Ligtenberg, ACTA, May 2023, Egmond aan Zee, Netherlands
    Schlagworte: Oral microbiota; Taste; [SDV.BBM]Life Sciences [q-bio]/Biochemistry; Molecular Biology; [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
  11. Thermocompression de cuivre poreux réalisée par dépôt électrochimique pour l’assemblage des composants semi conducteurs de puissance
    Autor*in: Janod, Goulven; Avenas, Yvan; Chachay, Lucas; Missiaen, Jean-Michel; Daudin, Rémi; Bouvard, Didier; Schoenleber, Jonathan; Gigandet, Marie Pierre; Hihn, Jean-Yves; Khazaka, Rabih
    Erschienen: 2023
    Verlag:  HAL CCSD

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    Übergeordneter Titel: Symposium du Génie Electrique ; https://hal.science/hal-04163382 ; Symposium du Génie Electrique, Jul 2023, LILLE, France
    Schlagworte: [SPI]Engineering Sciences [physics]
  12. Climate changes during the Lateglacial in South Europe: new insights based on pollen and brGDGTs of Lake Matese in Italy
    Autor*in: Robles, Mary; Peyron, Odile; Ménot, Guillemette; Brugiapaglia, Elisabeta; Wulf, Sabine; Appelt, Oona; Blache, Marion; Vannière, Boris; Dugerdil, Lucas; Paura, B; Ansanay-Alex, Salomé; Cromartie, Amy; Charlet, Laurent; Guédron, Stephane; de Beaulieu, Jacques-Louis; Joannin, Sébastien
    Erschienen: 2023
    Verlag:  HAL CCSD

    The Lateglacial (14,700-11,700 cal BP) is a key climate period marked by rapid but contrasted changes in the Northern Hemisphere. Indeed, regional climate differences have been evidenced during the Lateglacial in Europe and the Northern Mediterranean... mehr

     

    The Lateglacial (14,700-11,700 cal BP) is a key climate period marked by rapid but contrasted changes in the Northern Hemisphere. Indeed, regional climate differences have been evidenced during the Lateglacial in Europe and the Northern Mediterranean areas. However, past climate patterns are still debated since temperature and precipitation changes are poorly investigated towards the lower European latitudes. Lake Matese in Southern Italy is a key site in the Central Mediterranean to investigate climate patterns during the Lateglacial. This study aims to reconstruct climate changes and their impacts at Matese using a multi-proxy approach including magnetic susceptibility, geochemistry (XRF core scanning), pollen data and molecular biomarkers like branched Glycerol Dialkyl Glycerol Tetraethers (brGDGTs). Palaeotemperatures and -precipitation patterns are quantitatively inferred from pollen assemblages (multi-method approach: Modern Analogue Technique, Weighted Averaging Partial Least Squares regression, Random Forest, and Boosted Regression Trees) and brGDGTs calibrations. The results are compared to a latitudinal selection of regional climate reconstructions in Italy to better understand climate processes in Europe and in the circum-Mediterranean region. A warm Bølling–Allerød and a marked cold Younger Dryas are revealed in all climate reconstructions inferred from various proxies (chironomids, ostracods, speleothems, pollen, brGDGTs), showing no latitudinal differences in terms of temperatures across Italy. During the Bølling–Allerød, no significant changes in terms of precipitation are recorded, however, a contrasted pattern is visible during the Younger Dryas. Slightly wetter conditions are recorded south of latitude 42°N whereas dry conditions are recorded north of latitude 42°N. During the Younger Dryas, cold conditions can be attributed to the southward position of North Atlantic sea-ice and of the Polar Frontal JetStream whereas the increase of precipitation is Southern Italy seems to be linked to ...

     
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    Übergeordneter Titel: INQUA ; https://cnrs.hal.science/hal-04168314 ; INQUA, Jul 2023, Roma, Italy
    Schlagworte: [SDE]Environmental Sciences
  13. Using plant functional traits in paleoecology: a calibration study from Arid Central Asia
    Autor*in: Dugerdil, Lucas; Violle, Cyrille; Peyron, Odile; Joannin, Sébastien; Holger, Kreeft; Denelle, Pierre; Garnier, Eric
    Erschienen: 2023
    Verlag:  HAL CCSD

    The necessity of accurate past climate reconstructions for climate modelling is a key issue in (paleo)ecology. Especially, dryland such as Arid Central Asian deserts may spread in the next decades in surrounding steppes due to aridification. Several... mehr

     

    The necessity of accurate past climate reconstructions for climate modelling is a key issue in (paleo)ecology. Especially, dryland such as Arid Central Asian deserts may spread in the next decades in surrounding steppes due to aridification. Several methods already exist to convert pollen in quantitative climate (transfer functions) and biome (biomization). However, these methods are impeded by numerous biases, which could be overcome by current breakthrough in plant functional response to climate understanding.Few past pollen studies attempt to merge plant functional traits with pollen samples in order to reconstruct paleo-trait cover and functional vegetation dynamics. However, this approach has not been tested using modern samples. Especially, since the taxonomic resolution used in ecology is not the same as the one used in pollen studies (usually family or genus pollen identification), whether the phenotypic space of extant vegetation is consistent with that derived from pollen modern samples remains an open question.Here, we tested the performance of combining paleoecology and plant functional ecology to validate the use of pollen to infer the phenotypic space of past vegetation. The pollen surface sites from Arid Central Asia (n = 2393) have been extracted and the pollen-types have been used to aggregate traits (height, leaf area, leaf nitrogen, seed mass, specific leaf area and stem specific density from TRY, BIEN and GIFT databases). Then, the community-weighted mean (CWM) traits have been calculated using the pollen fractional abundances. These pollen-CWM traits have been compared with the vegetation-CWM (n = 21347). Finally, both have been related to current climate parameters.The preliminary results of this study show that the trait values aggregated by pollen-types respect the same plant economic spectrum than observed in botanical taxonomic resolution. Moreover, it validates the use of pollen as equivalent of vegetation plots to calculate the CWM. It also appears that the scheme of aggregation ...

     
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    Übergeordneter Titel: INQUA ; https://hal.science/hal-04168473 ; INQUA, Jul 2023, Roma, Italy
    Schlagworte: [SDE]Environmental Sciences
  14. The Entanglement of Landscape: Fire, Climate, and Agro-Pastoralism in the Bronze and Iron Age South Caucasus
    Autor*in: Cromartie, Amy; Peyron, Odile; Ménot, Guillemette; Messager, Erwan; Dugerdil, Lucas; Sahakyan, Kristina; Robles, Mary; Badalyan, Ruben; Joannin, Sébastien
    Erschienen: 2023
    Verlag:  HAL CCSD

    This paper investigates how the different social and political structures in Bronze and Iron Age Armenia shaped the surrounding steppe landscape through their agro-pastoral practices. We utilized a series of sediment cores from an altitudinal... mehr

     

    This paper investigates how the different social and political structures in Bronze and Iron Age Armenia shaped the surrounding steppe landscape through their agro-pastoral practices. We utilized a series of sediment cores from an altitudinal transect from around Mount Aragats, Armenia in conjunction with multiple biological and geochemical proxies (pollen, non-pollen palynomorphs, XRF, brGDGTs) and the archaeological record to untangle drivers of landscape change. This novel approach integrates multiple lines of evidence in order to understand the complexity of the entanglements of climate, fire, agro-pastoralism, and vegetation in this mountain steppe landscape.In this paper we focus on the pollen and macro-charcoal results from two sediment cores. One higher in the foothills, published in Cromartie et al. (2020), and a new record located in the valley. We find the markers of human activity corresponds with Early Bronze Age Kura-Araxes expansion of cereal agriculture into this highland region. This is followed by a decline in these markers in the Middle Bronze Age when there is a shift away from permanent settlements and increases in mobile pastoralism. Human indicators of agro-pastoralism land-usage return as communities return to practice settled agriculture from the Late Bronze Age through the Iron Age. Human landscape usage is primarily isolated to the core site in the valley through most of the record, but this changes during the Iron Age when shifts in political structure may have driven communities to utilize wetlands higher in altitude. Macro-charcoal analysis across all cores records a similar fire history which appears to be driven by climate until the last 2000 years but shifts in vegetation in the previous periods suggests humans contributed to declines in the natural fire regime. Overall, our records show that even within a small geographical area, human communities unevenly utilized the landscape and the differing social-political contexts influenced these changes. We highlight that ...

     
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    Übergeordneter Titel: INQUA ; https://hal.science/hal-04170132 ; INQUA, Jul 2023, Roma, Italy
    Schlagworte: [SDE]Environmental Sciences
  15. Effects of Running-Induced Fatigue on the Structure of Movement Variability in Novice Runners
    Autor*in: Fadillioglu, Cagla; Möhler, Felix; Scheffler, Lucia; Müller, Hermann; Stein, Thorsten
    Erschienen: 2023
    Verlag:  European College of Sport Science (ECSS)

    Fatigue is a major issue in sports science, especially for endurance sports. Running is one of the most popular endurance sports worldwide. Consequently, there is a high number of people that start running without prior experience. On the other hand,... mehr

     

    Fatigue is a major issue in sports science, especially for endurance sports. Running is one of the most popular endurance sports worldwide. Consequently, there is a high number of people that start running without prior experience. On the other hand, novice runners were shown to be prone to injury, possibly because they lack an adequate running style or strength to deal with the loads acting on the body. On this basis, understanding the effects of fatigue in novice runners is crucial since fatigue may associate with injuries as well as with running economy. Nevertheless, studies analyzing the effects of fatigue in novice runners are rare. Previously, it was shown that running-induced fatigue does not affect spatiotemporal parameters in novice runners but influenced the center of mass (CoM) movement (1). Therefore, the aim of this study was to investigate how the movement variability structure stabilizing the CoM trajectory changes under running-induced fatigue in novice runners. METHODS: Fourteen healthy male novice runners participated in the study. The experiment was conducted on a motorized treadmill (h/p/cosmos). After a treadmill familiarization protocol, the participants had two minutes to recover before running at a fixed speed of 13 km/h until subjective exhaustion. Kinematic data were recorded at 200 Hz using 16 Vicon cameras (Vicon Motion Systems, Oxford Metrics Group, Oxford, UK). The uncontrolled manifold (UCM) approach was applied to a 3D whole-body model using the joint angles as elementary variables, and the CoM as the result variable (2). The portion of variability that does not affect the CoM is referred to as UCM_par, whereas the portion that has effects on the CoM as UCM_ort. The ratio of UCM_par and UCM_ort (UCM_ratio) is used to operationalize the degree of stabilization (3). By using statistical parametric mapping (SPM), the differences between the PRE and POST fatigue conditions for three UCM parameters (UCM_par, UCM_ort and UCM_ratio) were analyzed. RESULTS: The participants continued to ...

     
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    Quelle: BASE Fachausschnitt AVL
    Sprache: Englisch
    Medientyp: Aufsatz aus einer Zeitschrift; Konferenzveröffentlichung
    Format: Online
    DDC Klassifikation: Literatur und Rhetorik (800)
    Schlagworte: UCM; variability; motor control; running; fatigue; Literature & rhetoric
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  16. „Ich bin eine Märchenerzählerin. So wurde ich geboren.“
    Autor*in: Mikota, Jana; van Lierop-Debrauwer, Helma; Linders, Joke; Steglich, Dana; Rizzato, Clara; Busch, Nathanael; van der Putte, Stijn; Wesseling, Elisabeth; Dewenter, Bastian; Hartwig, Marcel; Schmerheim, Philipp; Kleppmann, Martin; Locher, Norbert
    Erschienen: 2023
    Verlag:  Universität Siegen ; Fakultät I Philosophische Fakultät

    Ist Tonke Dragt die große Neuerin der europäischen Kinder- und Jugendliteratur? Diese sicherlich provokante Frage nimmt der Sammelband in den Fokus, der auf die Tagung „'Ich bin eine Märchenerzählerin. So wurde ich geboren'. Tonke Dragts Jugendromane... mehr

     

    Ist Tonke Dragt die große Neuerin der europäischen Kinder- und Jugendliteratur? Diese sicherlich provokante Frage nimmt der Sammelband in den Fokus, der auf die Tagung „'Ich bin eine Märchenerzählerin. So wurde ich geboren'. Tonke Dragts Jugendromane – übersehene Klassiker?", die im September 2019 an der Universität Siegen in Kooperation mit Helma van Lierop-Debrauwer stattgefunden hat, zurückgeht.

     
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    Quelle: BASE Fachausschnitt AVL
    Sprache: Deutsch; Englisch
    Medientyp: Konferenzveröffentlichung
    Format: Online
    Übergeordneter Titel: Siegen: universi - Universitätsverlag Siegen, 2023. - ISBN 978-3-96182-150-1
    DDC Klassifikation: Literatur und Rhetorik (800)
    Schlagworte: Phantastische Jugendliteratur; Dragt; Tonke; Kinder- und Jugendbuchforschung; Children’s literature; Juvenile literature; Research concerning Young adult literature
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    info:eu-repo/semantics/openAccess ; creativecommons.org/licenses/by-sa/4.0/