57286
2022
2022
eng
20
article
American Geophysical Union (AGU); Wiley
Hoboken, New Jersey, USA
1
2022-10-31
2022-10-31
--
Hillslope Sediment Supply Limits Alluvial Valley Width
River-valley morphology preserves information on tectonic and climatic conditions that shape landscapes. Observations suggest that river discharge and valley-wall lithology are the main controls on valley width. Yet, current models based on these observations fail to explain the full range of cross-sectional valley shapes in nature, suggesting hitherto unquantified controls on valley width. In particular, current models cannot explain the existence of paired terrace sequences that form under cyclic climate forcing. Paired river terraces are staircases of abandoned floodplains on both valley sides, and hence preserve past valley widths. Their formation requires alternating phases of predominantly river incision and predominantly lateral planation, plus progressive valley narrowing. While cyclic Quaternary climate changes can explain shifts between incision and lateral erosion, the driving mechanism of valley narrowing is unknown. Here, we extract valley geometries from climatically formed, alluvial river-terrace sequences and show that across our dataset, the total cumulative terrace height (here: total valley height) explains 90%–99% of the variance in valley width at the terrace sites. This finding suggests that valley height, or a parameter that scales linearly with valley height, controls valley width in addition to river discharge and lithology. To explain this valley-width-height relationship, we reformulate existing valley-width models and suggest that, when adjusting to new boundary conditions, alluvial valleys evolve to a width at which sediment removal from valley walls matches lateral sediment supply from hillslope erosion. Such a hillslope-channel coupling is not captured in current valley-evolution models. Our model can explain the existence of paired terrace sequences under cyclic climate forcing and relates valley width to measurable field parameters. Therefore, it facilitates the reconstruction of past climatic and tectonic conditions from valley topography.
AGU Advances
10.1029/2021AV000641
2576-604X
Tofelde, Stefanie
<a href="https://doi.org/10.25932/publishup-57287">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 1289</a>
CC-BY - Namensnennung 4.0 International
Stefanie Tofelde
Aaron Bufe
Jens M. Turowski
Geowissenschaften
Institut für Geowissenschaften
Extern
Referiert
Publikationsfonds der Universität Potsdam
Gold Open-Access
57831
2022
2022
eng
1
17
17
231
article
Elsevier
Amsterdam
1
2022-12-10
2022-12-10
--
Spatial-numerical associations without a motor response? Grip force says ‘Yes’
In numerical processing, the functional role of Spatial-Numerical Associations (SNAs, such as the association of smaller numbers with left space and larger numbers with right space, the Mental Number Line hypothesis) is debated. Most studies demonstrate SNAs with lateralized responses, and there is little evidence that SNAs appear when no response is required. We recorded passive holding grip forces in no-go trials during number processing. In Experiment 1, participants performed a surface numerical decision task (“Is it a number or a letter?”). In Experiment 2, we used a deeper semantic task (“Is this number larger or smaller than five?”). Despite instruction to keep their grip force constant, participants' spontaneous grip force changed in both experiments: Smaller numbers led to larger force increase in the left than in the right hand in the numerical decision task (500–700 ms after stimulus onset). In the semantic task, smaller numbers again led to larger force increase in the left hand, and larger numbers increased the right-hand holding force. This effect appeared earlier (180 ms) and lasted longer (until 580 ms after stimulus onset). This is the first demonstration of SNAs with passive holding force. Our result suggests that (1) explicit motor response is not a prerequisite for SNAs to appear, and (2) the timing and strength of SNAs are task-dependent. (216 words).
Acta Psychologica
10.1016/j.actpsy.2022.103791
1873-6297
Miklashevsky, Alex
103791
<a href="https://doi.org/10.25932/publishup-57832">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe ; 810</a>
CC-BY - Namensnennung 4.0 International
Alex Miklashevsky
Martin H. Fischer
Oliver Lindemann
eng
uncontrolled
SNARC
eng
uncontrolled
Mental number line
eng
uncontrolled
Number processing
eng
uncontrolled
Embodied cognition
eng
uncontrolled
Grip force
eng
uncontrolled
Motor system
Psychologie
Extern
Strukturbereich Kognitionswissenschaften
Referiert
Publikationsfonds der Universität Potsdam
Gold Open-Access
58128
2022
2022
eng
1
13
13
article
Frontiers
Lausanne, Schweiz
1
2022-07-22
2022-07-22
--
Children's use of egocentric reference frames in spatial language is related to their numerical magnitude understanding
Numerical magnitude information is assumed to be spatially represented in the form of a mental number line defined with respect to a body-centred, egocentric frame of reference. In this context, spatial language skills such as mastery of verbal descriptions of spatial position (e.g., in front of, behind, to the right/left) have been proposed to be relevant for grasping spatial relations between numerical magnitudes on the mental number line. We examined 4- to 5-year-old’s spatial language skills in tasks that allow responses in egocentric and allocentric frames of reference, as well as their relative understanding of numerical magnitude (assessed by a number word comparison task). In addition, we evaluated influences of children’s absolute understanding of numerical magnitude assessed by their number word comprehension (montring different numbers using their fingers) and of their knowledge on numerical sequences (determining predecessors and successors as well as identifying missing dice patterns of a series). Results indicated that when considering responses that corresponded to the egocentric perspective, children’s spatial language was associated significantly with their relative numerical magnitude understanding, even after controlling for covariates, such as children’s SES, mental rotation skills, and also absolute magnitude understanding or knowledge on numerical sequences. This suggests that the use of egocentric reference frames in spatial language may facilitate spatial representation of numbers along a mental number line and thus seem important for preschoolers’ relative understanding of numerical magnitude.
Frontiers in Psychology
10.3389/fpsyg.2022.943191
1664-1078
Lindner, Nadja
<a href="https://doi.org/10.25932/publishup-58127">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe ; 815</a>
false
false
CC-BY - Namensnennung 4.0 International
Nadja Lindner
Korbinian Moeller
Frauke Hildebrandt
Marcus Hasselhorn
Jan Lonnemann
eng
uncontrolled
spatial language
eng
uncontrolled
frames of reference
eng
uncontrolled
numerical development
eng
uncontrolled
mental number line
eng
uncontrolled
preschool children
Psychologie
Extern
Strukturbereich Bildungswissenschaften
Referiert
Publikationsfonds der Universität Potsdam
Gold Open-Access
58100
2022
2022
eng
16
article
Frontiers Media SA
Lausanne, Schweiz
1
2022-07-07
2022-07-07
--
Voice Analysis for Neurological Disorder Recognition – A Systematic Review and Perspective on Emerging Trends
Quantifying neurological disorders from voice is a rapidly growing field of research and holds promise for unobtrusive and large-scale disorder monitoring. The data recording setup and data analysis pipelines are both crucial aspects to effectively obtain relevant information from participants. Therefore, we performed a systematic review to provide a high-level overview of practices across various neurological disorders and highlight emerging trends. PRISMA-based literature searches were conducted through PubMed, Web of Science, and IEEE Xplore to identify publications in which original (i.e., newly recorded) datasets were collected. Disorders of interest were psychiatric as well as neurodegenerative disorders, such as bipolar disorder, depression, and stress, as well as amyotrophic lateral sclerosis amyotrophic lateral sclerosis, Alzheimer's, and Parkinson's disease, and speech impairments (aphasia, dysarthria, and dysphonia). Of the 43 retrieved studies, Parkinson's disease is represented most prominently with 19 discovered datasets. Free speech and read speech tasks are most commonly used across disorders. Besides popular feature extraction toolkits, many studies utilise custom-built feature sets. Correlations of acoustic features with psychiatric and neurodegenerative disorders are presented. In terms of analysis, statistical analysis for significance of individual features is commonly used, as well as predictive modeling approaches, especially with support vector machines and a small number of artificial neural networks. An emerging trend and recommendation for future studies is to collect data in everyday life to facilitate longitudinal data collection and to capture the behavior of participants more naturally. Another emerging trend is to record additional modalities to voice, which can potentially increase analytical performance.
Frontiers in Digital Health
10.3389/fdgth.2022.842301
2673-253X
Hecker, Pascal
842301
<a href="https://doi.org/10.25932/publishup-58101">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Reihe der Digital Engineering Fakultät ; 13</a>
PA 2022_066
CC-BY - Namensnennung 4.0 International
Pascal Hecker
Nico Steckhan
Florian Eyben
Björn Wolfgang Schuller
Bert Arnrich
eng
uncontrolled
neurological disorders
eng
uncontrolled
voice
eng
uncontrolled
speech
eng
uncontrolled
everyday life
eng
uncontrolled
multiple modalities
eng
uncontrolled
machine learning
eng
uncontrolled
disorder recognition
Medizin und Gesundheit
Extern
Referiert
Publikationsfonds der Universität Potsdam
Hasso-Plattner-Institut für Digital Engineering GmbH
Gold Open-Access
57959
2023
2023
eng
1
23
23
1
13
article
MDPI
Basel, Schweiz
1
2023-01-10
2023-01-10
--
The Human Mercaptopyruvate Sulfurtransferase TUM1 Is Involved in Moco Biosynthesis, Cytosolic tRNA Thiolation and Cellular Bioenergetics in Human Embryonic Kidney Cells
Sulfur is an important element that is incorporated into many biomolecules in humans. The incorporation and transfer of sulfur into biomolecules is, however, facilitated by a series of different sulfurtransferases. Among these sulfurtransferases is the human mercaptopyruvate sulfurtransferase (MPST) also designated as tRNA thiouridine modification protein (TUM1). The role of the human TUM1 protein has been suggested in a wide range of physiological processes in the cell among which are but not limited to involvement in Molybdenum cofactor (Moco) biosynthesis, cytosolic tRNA thiolation and generation of H2S as signaling molecule both in mitochondria and the cytosol. Previous interaction studies showed that TUM1 interacts with the L-cysteine desulfurase NFS1 and the Molybdenum cofactor biosynthesis protein 3 (MOCS3). Here, we show the roles of TUM1 in human cells using CRISPR/Cas9 genetically modified Human Embryonic Kidney cells. Here, we show that TUM1 is involved in the sulfur transfer for Molybdenum cofactor synthesis and tRNA thiomodification by spectrophotometric measurement of the activity of sulfite oxidase and liquid chromatography quantification of the level of sulfur-modified tRNA. Further, we show that TUM1 has a role in hydrogen sulfide production and cellular bioenergetics.
Biomolecules
10.3390/biom13010144
2218-273X
Leimkühler, Silke
<a href="https://doi.org/10.25932/publishup-57958">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 1307</a>
144
CC-BY - Namensnennung 4.0 International
Moses Olalekan Ogunkola
Gaelle Guiraudie-Capraz
François Féron
Silke Leimkühler
eng
uncontrolled
Moco biosynthesis
eng
uncontrolled
sulfite oxidase
eng
uncontrolled
cytosolic tRNA thiolation
eng
uncontrolled
5-methoxycarbonylmethyl-2-thiouridine
eng
uncontrolled
H2S biosynthesis
eng
uncontrolled
cellular bioenergetics
Biowissenschaften; Biologie
Institut für Biochemie und Biologie
Extern
Referiert
Publikationsfonds der Universität Potsdam
Gold Open-Access
57835
2022
2022
eng
1
11
11
1
10
article
MDPI
Basel, Schweiz
1
2022-12-21
2022-12-21
--
Access to Healthcare for Children and Adolescents with a Chronic Health Condition during the COVID-19 Pandemic: First Results from the KICK-COVID Study in Germany
This study examines the access to healthcare for children and adolescents with three common chronic diseases (type-1 diabetes (T1D), obesity, or juvenile idiopathic arthritis (JIA)) within the 4th (Delta), 5th (Omicron), and beginning of the 6th (Omicron) wave (June 2021 until July 2022) of the COVID-19 pandemic in Germany in a cross-sectional study using three national patient registries. A paper-and-pencil questionnaire was given to parents of pediatric patients (<21 years) during the routine check-ups. The questionnaire contains self-constructed items assessing the frequency of healthcare appointments and cancellations, remote healthcare, and satisfaction with healthcare. In total, 905 parents participated in the T1D-sample, 175 in the obesity-sample, and 786 in the JIA-sample. In general, satisfaction with healthcare (scale: 0–10; 10 reflecting the highest satisfaction) was quite high (median values: T1D 10, JIA 10, obesity 8.5). The proportion of children and adolescents with canceled appointments was relatively small (T1D 14.1%, JIA 11.1%, obesity 20%), with a median of 1 missed appointment, respectively. Only a few parents (T1D 8.6%; obesity 13.1%; JIA 5%) reported obstacles regarding health services during the pandemic. To conclude, it seems that access to healthcare was largely preserved for children and adolescents with chronic health conditions during the COVID-19 pandemic in Germany.
Children
10.3390/children10010010
2227-9067
<a href="https://doi.org/10.25932/publishup-57836">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe ; 812</a>
10
Warschburger, Petra
false
false
CC-BY - Namensnennung 4.0 International
Julia M. Göldel
Clemens Kamrath
Kirsten Minden
Susanna Wiegand
Stefanie Lanzinger
Claudia Sengler
Susann Weihrauch-Blüher
Reinhard W. Holl
Sascha René Tittel
Petra Warschburger
eng
uncontrolled
chronic health condition
eng
uncontrolled
children and adolescents
eng
uncontrolled
health care
eng
uncontrolled
COVID-19 pandemic
eng
uncontrolled
diabetes
eng
uncontrolled
rheumatic diseases
eng
uncontrolled
obesity
Medizin und Gesundheit
Extern
Strukturbereich Kognitionswissenschaften
Referiert
Publikationsfonds der Universität Potsdam
Gold Open-Access
57956
2023
2023
eng
1
10
10
article
Frontiers
Lausanne, Schweiz
1
2023-01-10
2023-01-10
--
Nathusius’ bats, Pipistrellus nathusii, bypass mating opportunities of their own species, but respond to foraging heterospecifics on migratory transit flights
In late summer, migratory bats of the temperate zone face the challenge of accomplishing two energy-demanding tasks almost at the same time: migration and mating. Both require information and involve search efforts, such as localizing prey or finding potential mates. In non-migrating bat species, playback studies showed that listening to vocalizations of other bats, both con-and heterospecifics, may help a recipient bat to find foraging patches and mating sites. However, we are still unaware of the degree to which migrating bats depend on con-or heterospecific vocalizations for identifying potential feeding or mating opportunities during nightly transit flights. Here, we investigated the vocal responses of Nathusius’ pipistrelle bats, Pipistrellus nathusii, to simulated feeding and courtship aggregations at a coastal migration corridor. We presented migrating bats either feeding buzzes or courtship calls of their own or a heterospecific migratory species, the common noctule, Nyctalus noctula. We expected that during migratory transit flights, simulated feeding opportunities would be particularly attractive to bats, as well as simulated mating opportunities which may indicate suitable roosts for a stopover. However, we found that when compared to the natural silence of both pre-and post-playback phases, bats called indifferently during the playback of conspecific feeding sounds, whereas P. nathusii echolocation call activity increased during simulated feeding of N. noctula. In contrast, the call activity of P. nathusii decreased during the playback of conspecific courtship calls, while no response could be detected when heterospecific call types were broadcasted. Our results suggest that while on migratory transits, P. nathusii circumnavigate conspecific mating aggregations, possibly to save time or to reduce the risks associated with social interactions where aggression due to territoriality might be expected. This avoidance behavior could be a result of optimization strategies by P. nathusii when performing long-distance migratory flights, and it could also explain the lack of a response to simulated conspecific feeding. However, the observed increase of activity in response to simulated feeding of N. noctula, suggests that P. nathusii individuals may be eavesdropping on other aerial hawking insectivorous species during migration, especially if these occupy a slightly different foraging niche.
Frontiers in Ecology and Evolution
10.3389/fevo.2022.908560
2296-701X
Marggraf, Lara Christin
<a href="https://doi.org/10.25932/publishup-57957">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 1306</a>
false
false
CC-BY - Namensnennung 4.0 International
Lara Christin Marggraf
Oliver Lindecke
Christian C. Voigt
Gunārs Pētersons
Silke Luise Voigt-Heucke
eng
uncontrolled
playback
eng
uncontrolled
phonotaxis
eng
uncontrolled
bats
eng
uncontrolled
acoustic communication
eng
uncontrolled
animal migration
eng
uncontrolled
eavesdropping
eng
uncontrolled
echolocation
eng
uncontrolled
Pipistrellus nathusii
Biowissenschaften; Biologie
Institut für Biochemie und Biologie
Extern
Referiert
Publikationsfonds der Universität Potsdam
Gold Open-Access
2942
2005
deu
67
85
1/2
7
article
0
2009-05-26
--
--
Geographie und Dekonstruktion
Inhalt: - Der Ort - Das Symptom - Der Jargon des Vermeintlichen, oder: vermeintliche Philosophie - Was ist: Dekonstruktion? - Zur Genese - Dekonstruktion und Geographie - Grenz-Philosophie - Die Welt als Text - Versuch über die Grenze, in geographischer Absicht
Geographische Revue : Zeitschrift für Literatur und Diskussion
zu einem zeitgenössischen Missverständnis
urn:nbn:de:kobv:517-opus-31098
3109
1438-3039
<hr>Die Printversion kann in der <a href="http://info.ub.uni-potsdam.de/" target=_blanc> Universitätsbibliothek Potsdam </a> eingesehen werden:<br>Geographische Revue: Zeitschrift für Literatur und Diskussion. Flensburg : Geograph. Revue e.V., 1999-<br>ISSN 1438-3039<br><br>Die Online-Fassung wird auf der Homepage der Zeitschrift <a href="http://www.geographische-revue.de/" target=_blanc> Geographische Revue </a> veröffentlicht.
RA 2740
egger@...
Keine öffentliche Lizenz: Unter Urheberrechtsschutz
Thomas Dörfler
Geowissenschaften
open_access
Geographie und Film 7 (2005) 1/2
Essays
Extern
Universität Potsdam
https://publishup.uni-potsdam.de/files/2942/gr1_05_Ess04.pdf
58229
2021
2021
eng
9012
9021
10
24
10
article
Wiley
Hoboken, New Jersey, USA
1
2021-11-08
2021-11-08
--
Communicating the diagnosis of cancer or depression: Results of a randomized controlled online study using video vignettes
Background
Communicating a diagnosis is highly important, yet complex, especially in the context of cancer and mental disorders. The aim was to explore the communication style of an oncologist vs. psychotherapist in an online study.
Methods
Patients (N = 136: 65 cancer, 71 depression) were randomly assigned to watch a standardized video vignette with one of two communication styles (empathic vs. unempathic). Outcome measures of affectivity, information recall, communication skills, empathy and trust were applied.
Results
Regardless of diagnosis, empathic communication was associated with the perception of a significantly more empathic (p < 0.001, η2partial = 0.08) and trustworthy practitioner (p = 0.014, η2partial = 0.04) with better communication skills (p = 0.013, η2partial = 0.05). Cancer patients reported a larger decrease in positive affect (p < 0.001, η2partial = 0.15) and a larger increase in negative affect (p < 0.001, η2partial = 0.14) from pre- to post-video than depressive patients. Highly relevant information was recalled better in both groups (p < 0.001, d = 0.61–1.06).
Conclusions
The results highlight the importance of empathy while communicating both a diagnosis of cancer and a mental disorder. Further research should focus on the communication of a mental disorder in association with cancer.
Cancer Medicine
10.1002/cam4.4396
2045-7634
<a href="https://doi.org/10.25932/publishup-58228">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe ; 817</a>
Kühne, Franziska
PA 2022_113
CC-BY - Namensnennung 4.0 International
Franziska Kühne
Henriette Fauth
Ay-Bryson Destina Sevde
Leonie N.C. Visser
Florian Weck
eng
uncontrolled
consultation
eng
uncontrolled
mental health
eng
uncontrolled
oncology
eng
uncontrolled
psycho-oncology
eng
uncontrolled
skills
Medizin und Gesundheit
Extern
Strukturbereich Kognitionswissenschaften
Referiert
Publikationsfonds der Universität Potsdam
Gold Open-Access
57079
2022
2022
eng
1
17
17
3
12
article
Wiley Online Library
Hoboken, New Jersey, USA
1
2022-03-18
2022-03-18
--
Agricultural buffer zone thresholds to safeguard functional bee diversity
Wild bee species are important pollinators in agricultural landscapes. However, population decline was reported over the last decades and is still ongoing. While agricultural intensification is a major driver of the rapid loss of pollinating species, transition zones between arable fields and forest or grassland patches, i.e., agricultural buffer zones, are frequently mentioned as suitable mitigation measures to support wild bee populations and other pollinator species. Despite the reported general positive effect, it remains unclear which amount of buffer zones is needed to ensure a sustainable and permanent impact for enhancing bee diversity and abundance. To address this question at a pollinator community level, we implemented a process-based, spatially explicit simulation model of functional bee diversity dynamics in an agricultural landscape. More specifically, we introduced a variable amount of agricultural buffer zones (ABZs) at the transition of arable to grassland, or arable to forest patches to analyze the impact on bee functional diversity and functional richness. We focused our study on solitary bees in a typical agricultural area in the Northeast of Germany. Our results showed positive effects with at least 25% of virtually implemented agricultural buffer zones. However, higher amounts of ABZs of at least 75% should be considered to ensure a sufficient increase in Shannon diversity and decrease in quasi-extinction risks. These high amounts of ABZs represent effective conservation measures to safeguard the stability of pollination services provided by solitary bee species. As the model structure can be easily adapted to other mobile species in agricultural landscapes, our community approach offers the chance to compare the effectiveness of conservation measures also for other pollinator communities in future.
Ecology and Evolution
Insights from a community modeling approach
10.1002/ece3.8748
2045-7758
35342570
e8748
Reeg, Jette
<a href="https://doi.org/10.25932/publishup-57080">Zweitveröffentlichung in der Schriftenreihe Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 1281</a>
WOS:000774934000001
Reeg, J (corresponding author), Univ Potsdam, Inst Biochem & Biol, Dept Ecol Macroecol, Maulbeerallee 3, D-14469 Potsdam, Germany.
Bundesministerium fur Bildung und Forschung
01LC1501B
2635675-2
CC-BY - Namensnennung 4.0 International
Jette Reeg
Lea Strigl
Florian Jeltsch
eng
uncontrolled
agricultural landscape
eng
uncontrolled
buffer zones
eng
uncontrolled
community model
eng
uncontrolled
functional traits
eng
uncontrolled
solitary bees
eng
uncontrolled
spatially explicit
Naturwissenschaften und Mathematik
Biowissenschaften; Biologie
Institut für Biochemie und Biologie
Extern
Referiert
Publikationsfonds der Universität Potsdam
Gold Open-Access