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Université de Fribourg

Positive humor in couples as interpersonal emotion regulation : A dyadic study in everyday life on the mediating role of psychological intimacy

Horn, Andrea B. ; Samson, Andrea C. ; Debrot, Anik ; Perrez, Mainrad

In: Journal of Social and Personal Relationships, 2019, vol. 36, no. 8, p. 2376-2396

The aim of this study was to investigate daily positive humor in couples as an interpersonal emotion regulation strategy. Associated changes in psychological intimacy were tested as a possible socio- affective pathway of emotion regulation that mediates the effects of couple humor on changes in individual momentary affect. Within a dyadic ambulatory assessment framework, 102 couples...

Université de Fribourg

Tissue-specific isoforms of the single C. elegans Ryanodine receptor gene unc-68 control specific functions

Marques, Filipe ; Thapliyal, Saurabh ; Javer, Avelino ; Shrestha, Priyanka ; Brown, André E. X. ; Glauser, Dominique A.

In: PLOS Genetics, 2020, vol. 16, no. 10, p. e1009102

Ryanodine receptors (RyR) are essential regulators of cellular calcium homeostasis and signaling. Vertebrate genomes contain multiple RyR gene isoforms, expressed in different tissues and executing different functions. In contrast, invertebrate genomes contain a single RyR-encoding gene and it has long been proposed that different transcripts generated by alternative splicing may diversify...

Université de Fribourg

3D imaging of undissected optically cleared Anopheles stephensi mosquitoes and midguts infected with Plasmodium parasites

Niz, Mariana De ; Kehrer, Jessica ; Brancucci, Nicolas M. B. ; Moalli, Federica ; Reynaud, Emmanuel G. ; Stein, Jens V. ; Frischknecht, Friedrich

In: PLOS ONE, 2020, vol. 15, no. 9, p. e0238134

Malaria is a life-threatening disease, caused by Apicomplexan parasites of the Plasmodium genus. The Anopheles mosquito is necessary for the sexual replication of these parasites and for their transmission to vertebrate hosts, including humans. Imaging of the parasite within the insect vector has been attempted using multiple microscopy methods, most of which are hampered by the presence of...

Université de Fribourg

Towards deciphering variations of heart regeneration in fish

Jaźwińska, Anna ; Blanchoud, Simon

In: Current Opinion in Physiology, 2020, vol. 14, p. 21–26

Among adult vertebrates, the zebrafish presents the rather exceptional capacity to efficiently regenerate its heart after injury. This bony fish has thus become a leading genetic model organism to elucidate the natural mechanisms of successful cardiac restoration. Given its potential biomedical significance, parallel analyses between zebrafish and mammals are aiming at the identification of...

Université de Fribourg

A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota

Joyce, Walter G. ; Rollot, Yann ; Cifelli, Richard L.

In: Fossil Record, 2020, vol. 23, no. 1, p. 1–13

Baenidae is a clade of paracryptodiran turtles known from the late Early Cretaceous to Eocene of North America. The proposed sister-group relationship of Baenidae to Pleurosternidae, a group of turtles known from sediments dated as early as the Late Jurassic, suggests a ghost lineage that crosses the early Early Cretaceous. We here document a new species of paracryptodiran turtle, Lakotemys...

Université de Fribourg

Subfossil lemur discoveries from the Beanka Protected Area in western Madagascar

Burney, David A. ; Andriamialison, Haingoson ; Andrianaivoarivelo, Radosoa A. ; Bourne, Steven ; Crowley, Brooke E. ; Boer, Erik J. de ; Godfrey, Laurie R. ; Goodman, Steven M. ; Griffiths, Christine ; Griffiths, Owen ; Hume, Julian P. ; Joyce, Walter G. ; Jungers, William L. ; Marciniak, Stephanie ; Middleton, Gregory J. ; Muldoon, Kathleen M. ; Noromalala, Eliette ; Pérez, Ventura R. ; Perry, George H. ; Randalana, Roger ; Wright, Henry T.

In: Quaternary Research, 2020, vol. 93, no. 1, p. 187–203

A new fossil site in a previously unexplored part of western Madagascar (the Beanka Protected Area) has yielded remains of many recently extinct vertebrates, including giant lemurs (Babakotia radofilai, Palaeopropithecus kelyus, Pachylemur sp., and Archaeolemur edwardsi), carnivores (Cryptoprocta spelea), the aardvark-like Plesiorycteropus sp., and giant ground cuckoos (Coua). Many of these...

Université de Fribourg

A reevaluation of the basal turtle Indochelys spatulata from the Early–Middle Jurassic (Toarcian–Aalenian) of India, with descriptions of new material

Joyce, Walter G. ; Bandyopadhyay, Saswati

In: PeerJ, 2020, vol. 8, p. e8542

Background Indochelys spatulata is an extinct turtle from the Early to Middle Jurassic Kota Formation of the Pranhita–Godavari Gondwana basin, India. The holotype and previously only known specimen is a partially eroded shell that had been collected near Kota village, north of Sironcha, in Maharashtra State. Phylogenetic analyses have consistently suggested placement at the base of the...

Université de Fribourg

Life-history evolution and the genetics of fitness components in drosophila melanogaster

Flatt, Thomas

In: Genetics, 2020, vol. 214, no. 1, p. 3–48

Life-history traits or “fitness components”—such as age and size at maturity, fecundity and fertility, age-specific rates of survival, and life span—are the major phenotypic determinants of Darwinian fitness. Analyzing the evolution and genetics of these phenotypic targets of selection is central to our understanding of adaptation. Due to its simple and rapid life cycle, cosmopolitan...