1,725,056 research outputs found
Data Supporting “Studying mate preferences using inertial measurement units: A validation study with treefrogs”
No full textThe 8 data and code files in this archive accompany the manuscript "Studying mate preferences using inertial measurement units: A validation study with treefrogs"Investigations of mate choice continue to address fundamental questions about the
mechanisms and evolution of animal behaviour. A common behavioural assay used to study
acoustically guided mate choice with playback experiments is phonotaxis, a typically robust
response in which a chooser approaches a sound source broadcasting acoustic signals, such
as courtship songs or mating calls. Robust empirical studies of phonotaxis often require
substantial laboratory facilities, such as a dedicated and sound-treated room or enclosure, in
which the acoustic environment is controlled and in which animals are freely able to move
about. The financial and space resources required to outfit a research laboratory to investigate
phonotaxis may be sufficiently prohibitive such that some researchers are excluded from
undertaking bioacoustic behavioural research. Here, we validate a new device designed to
measure animal movements related to phonotaxis behaviour using an inertial measurement unit
(IMU). The device is small and portable; it can be constructed for less than $300 US dollars; and
the build instructions and code for operation are freely available (Gupta et al., 2020, HardwareX,
8, e00116). In a series of four experiments with treefrogs, we demonstrate using the device that
an IMU-based approach to measuring animal movement can replicate a broad range of findings
from traditional phonotaxis experiments on species recognition and sexual selection. We
conclude by discussing several possible uses for IMU-based measurements of phonotaxis.National Science FoundationGupta, Saumya; Bee, Mark A. (2023). Data Supporting “Studying mate preferences using inertial measurement units: A validation study with treefrogs”. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/fzk6-1q04
Data supporting "Informational Masking Constrains Vocal Communication in Nonhuman Animals"
No full textThe 9 data and R script files in this archive accompany the manuscript: Animal Vocal Signals are Susceptible to Informational MaskingNoisy social environments constrain human speech communication in two important ways: spectrotemporal overlap between signals and noise can reduce speech audibility (“energetic masking”) and noise can also interfere with processing the informative features of otherwise audible speech (“informational masking”). To date, informational masking has not been investigated in studies of vocal communication in nonhuman animals, even though many animals make evolutionarily consequential decisions that depend on processing vocal information in noisy social environments. In this study of a treefrog, in which females choose mates in noisy breeding choruses, we investigated whether informational masking disrupts the processing of vocal information in the contexts of species recognition and sexual selection. The associated data for this work is being released prior to the publication of the manuscript for peer review.National Science Foundation (IOS-2022253)Gupta, Saumya; Kalra, Lata; Rose, Gary J; Bee, Mark A. (2023). Data supporting "Informational Masking Constrains Vocal Communication in Nonhuman Animals". Retrieved from the University Digital Conservancy, https://doi.org/10.13020/6vfc-0f21
Membrane remodeling by novel regulators of the recycling endosome: the RME-1 and AMPH-1 partnership
No full textEndocytic recycling is the process where by molecules traffic from endosomes back to the plasma membrane. This process is crucial for the maintenance of cellular homeostasis and cell polarity. C. elegans RME-1 and its mammalian homolog mRme-1/EHD1 are required for exit of cargo from the recycling endosome. The mechanism by which they control cargo exit has led to a proposal that they may function in formation of carrier tubules that break off from the recycling endosome. Recent studies suggested parallels of EHD family to the Dynamin GTPase superfamily of mechanoenzymes which function in membrane fission at the clathrin coated pit. Through a bioinformatics based screen we identified an interaction between RME-1 and AMPH-1, the only C. elegans member of Amphiphysin/BIN1 family of BAR-domain proteins. In mammalian neuronal synapses, Amphiphysin family proteins regulate the recruitment and activity of Dynamin for formation of vesicles. We established that AMPH-1 co localizes with RME-1 on recycling endosomes in vivo, amph-1 deletion mutants are defective in recycling endosome morphology and function and that AMPH-1 and RME-1 cooperatively promote the recycling of transmembrane cargo. in vitro we found that purified recombinant AMPH-1/RME-1 co-assemble on membranes to produce short, coated tubules which are qualitatively distinct from those produced by either protein alone. We have established that AMPH-1 and RME-1 serve as a novel membrane tubulation and possibly fission machinery at the recycling endosome, an interaction that is conserved in mammals.
We also investigated the function of a serine/threonine kinase of the germinal center kinase family (GCK-2) which is known to bind two Rabs, RAB-10 and RAB-8, which function in endocytic recycling. We established that GCK-2 is a novel effector of RAB-8 in regulating RME-1 labeled recycling endosomes. In select functions, it may serve as a RAB-10 effector. This may be an example of RABs being sequentially activated by binding the same effector. This study identifies a novel function for a germinal center kinase proteins whose only known function relates to the MAPK signaling cascade.
We recently established an interaction between GCK-2 and AMPH-1. We hypothesize that this interaction could serve as a hub which ties together the major recycling endosome interactions mapped for RME-1/AMPH-1 as well as with RAB-8/RAB-10.Ph.D.Includes bibliographical references (p. 292-304)by Saumya Pan
Book Review: Vrinda Grover and Uma Saumya, Kandhamal: Introspection of Initiative for Justice 2007–2015
No full text Vrinda Grover and Uma Saumya, Kandhamal: Introspection of Initiative for Justice 2007–2015. New Delhi: Media House, 2017, 304 pp., ₹595, ISBN: 978-9374956748. </jats:p
Supplementary_material - Patriarchal beliefs and perceptions towards women among Indian police officers: A study of Uttar Pradesh, India
No full textSupplementary_material for Patriarchal beliefs and perceptions towards women among Indian police officers: A study of Uttar Pradesh, India by Saumya Tripathi in International Journal of Police Science & Management</p
Data supporting "Neural Basis of Acoustic Species Recognition in a Cryptic Species Complex"
No full textTwo .csv files containing the behavioral data and the neural data respectively, and a Readme file for documentation of the datasets.Sexual traits that promote species recognition are important drivers of reproductive isolation, especially among closely related species. Identifying neural processes that shape species differences in recognition is crucial for understanding the causal mechanisms of reproductive isolation. Temporal patterns are salient features of sexual signals that are widely used in species recognition by several taxa, including anurans. Recent advances in our understanding of temporal processing by the anuran auditory system provide an excellent opportunity to investigate the neural basis of species-specific recognition. The anuran inferior colliculus (IC) consists of neurons that are selective for temporal features of calls. Of potential relevance are auditory neurons known as interval-counting neurons (ICNs) that are often selective for the pulse rate of conspecific advertisement calls. Here, we took advantage of a species differences in temporal selectivity for pulsatile advertisement calls exhibited by two cryptic species of gray treefrog (Hyla chrysoscelis and Hyla versicolor) to test the hypothesis that ICNs mediate acoustic species recognition. We tested this hypothesis by examining the extent to which the threshold number of pulses required to elicit behavioral responses from females and neural responses from ICNs was similar within each species but potentially different between the two species. The associated data for this work is being released prior to submission of the manuscript for peer review.National Science Foundation (IOS 1452831)National Science Foundation (IOS - 2022253)Pletcher graduate fellowshipAlexander and Lydia Anderson grantSummer research grant by the Department of Ecology, Evolution, and BehaviorGupta, Saumya; Alluri, Rishi K; Rose, Gary J; Bee, Mark A. (2021). Data supporting "Neural Basis of Acoustic Species Recognition in a Cryptic Species Complex". Retrieved from the University Digital Conservancy, https://doi.org/10.13020/6c7h-4b35
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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