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Université de Fribourg

Risk factors during first 1,000 days of life for carotid intima-media thickness in infants, children, and adolescents: A systematic review with meta-analyses

Epure, Adina Mihaela ; Rios-Leyvraz, Magali ; Anker, Daniela ; Di Bernardo, Stefano ; Costa, Bruno R. da ; Chiolero, Arnaud ; Sekarski, Nicole

In: PLOS Medicine, 2020, vol. 17, no. 11, p. e1003414

The first 1,000 days of life, i.e., from conception to age 2 years, could be a critical period for cardiovascular health. Increased carotid intima-media thickness (CIMT) is a surrogate marker of atherosclerosis. We performed a systematic review with meta- analyses to assess (1) the relationship between exposures or interventions in the first 1,000 days of life and CIMT in infants, children,...

Université de Fribourg

NGS-based S. aureus typing and outbreak analysis in clinical microbiology laboratories : Lessons learned from a Swiss-wide proficiency test

Dylus, David ; Pillonel, Trestan ; Opota, Onya ; Wüthrich, Daniel ; Seth-Smith, Helena M. B. ; Egli, Adrian ; Leo, Stefano ; Lazarevic, Vladimir ; Schrenzel, Jacques ; Laurent, Sacha ; Bertelli, Claire ; Blanc, Dominique S. ; Neuenschwander, Stefan ; Ramette, Alban ; Falquet, Laurent ; Imkamp, Frank ; Keller, Peter M. ; Kahles, Andre ; Oberhaensli, Simone ; Barbié, Valérie ; Dessimoz, Christophe ; Greub, Gilbert ; Lebrand, Aitana

In: Frontiers in Microbiology, 2020, vol. 11, p. 591093

Whole genome sequencing (WGS) enables high resolution typing of bacteria up to the single nucleotide polymorphism (SNP) level. WGS is used in clinical microbiology laboratories for infection control, molecular surveillance and outbreak analyses. Given the large palette of WGS reagents and bioinformatics tools, the Swiss clinical bacteriology community decided to conduct a ring trial (RT) to...

Université de Fribourg

Identification of avoidance genes through neural pathway-specific forward optogenetics

Marques, Filipe ; Saro, Gabriella ; Lia, Andrei-Stefan ; Poole, Richard J. ; Falquet, Laurent ; Glauser, Dominique A.

In: PLOS Genetics, 2019, vol. 15, no. 12, p. e1008509

Understanding how the nervous system bridges sensation and behavior requires the elucidation of complex neural and molecular networks. Forward genetic approaches, such as screens conducted in C. elegans, have successfully identified genes required to process natural sensory stimuli. However, functional redundancy within the underlying neural circuits, which are often organized with multiple...

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...

Università della Svizzera italiana

Liquid web applications : design and implementation of the decentralized cross-device web

Gallidabino, Andrea ; Pautasso, Cesare (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2020 ; 2020INFO006.

Web applications are traditionally designed having in mind a server-centric architecture, whereby the whole persistent data, dynamic state and logic of the application are stored and running on a Web server. The clients running in the Web browsers traditionally render only pre-computed views fetched from the server. Nowadays this centralized approach does not fit well with the kind of...

Université de Fribourg

Inference of natural selection from ancient DNA

Dehasque, Marianne ; Ávila‐Arcos, María C. ; Díez‐del‐Molino, David ; Fumagalli, Matteo ; Guschanski, Katerina ; Lorenzen, Eline D. ; Malaspinas, Anna‐Sapfo ; Marques‐Bonet, Tomas ; Martin, Michael D. ; Murray, Gemma G. R. ; Papadopulos, Alexander S. T. ; Therkildsen, Nina Overgaard ; Wegmann, Daniel ; Dalén, Love ; Foote, Andrew D.

In: Evolution Letters, 2020, vol. 4, no. 2, p. 94–108

Evolutionary processes, including selection, can be indirectly inferred based on patterns of genomic variation among contemporary populations or species. However, this often requires unrealistic assumptions of ancestral demography and selective regimes. Sequencing ancient DNA from temporally spaced samples can inform about past selection processes, as time series data allow direct...

Université de Fribourg

Supply and demand law under variable information

Yuan, Guanghui ; Han, Jingti ; Zhou, Lei ; Liang, Hejun ; Zhang, Yi-Cheng

In: Physica A: Statistical Mechanics and its Applications, 2019, vol. 536, p. 121004

When the product quality is limited and the information capability is variable, we propose the enterprise enhances corporate profits by changing the relationship between market demand and external resources. We assume that the information capacity can be changed through the input of external resources. In this paper, we present a research agenda that empowers external resources to transform...

Università della Svizzera italiana

Just-in-time information retrieval and summarization for personal assistance

Bahrainian, Seyed Ali ; Crestani, Fabio (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2019 ; 2019INFO014.

With the rapid development of means for producing user-generated data opportunities for collecting such data over a time-line and utilizing it for various human-aid applications are more than ever. Wearable and mobile data capture devices as well as many online data channels such as search engines are all examples of means of user data collection. Such user data could be utilized to model user...

Université de Fribourg

Predicting abundances of invasive ragweed across Europe using a “top-down” approach

Skjøth, Carsten Ambelas ; Sun, Yan ; Karrer, Gerhard ; Sikoparija, Branko ; Smith, Matt ; Schaffner, Urs ; Müller-Schärer, Heinz

In: Science of The Total Environment, 2019, vol. 686, p. 212–222

Common ragweed (Ambrosia artemisiifolia L.) is a widely distributed and harmful invasive plant that is an important source of highly allergenic pollen grains and a prominent crop weed. As a result, ragweed causes huge costs to both human health and agriculture in affected areas. Efficient mitigation requires accurate mapping of ragweed densities that, until now, has not been achieved...

Università della Svizzera italiana

Modeling user information needs on mobile devices : from recommendation to conversation

Aliannejadi, Mohammad ; Crestani, Fabio (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2019 ; 2019INFO010.

Recent advances in the development of mobile devices, equipped with multiple sensors, together with the availability of millions of applications have made these devices more pervasive in our lives than ever. The availability of the diverse set of sensors, as well as high computational power, enable information retrieval (IR) systems to sense a user’s context and personalize their results ...