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Université de Fribourg

Disentangling the effects of external perturbations on coexistence and priority effects

Song, Chuliang ; Rohr, Rudolf P. ; Vasseur, David ; Saavedra, Serguei

In: Journal of Ecology, 2020, p. 1365-2745.13349

A major challenge in ecological research is to identify the tolerance of ecological communities to external perturbations. Modern coexistence theory (MCT) has been widely adopted as a framework to investigate the tolerance to perturbations in relative reductions of per capita growth rates, often using metrics that explicitly eliminate the independent role of intrinsic growth rates. More...

Université de Fribourg

The effects of temperature and dispersal on species diversity in natural microbial metacommunities

Parain, Elodie C. ; Gray, Sarah M. ; Bersier, Louis-Félix

In: Scientific Reports, 2019, vol. 9, no. 1, p. 18286

Dispersal is key for maintaining biodiversity at local- and regional scales in metacommunities. However, little is known about the combined effects of dispersal and climate change on biodiversity. Theory predicts that alpha-diversity is maximized at intermediate dispersal rates, resulting in a hump-shaped diversity-dispersal relationship. This relationship is predicted to flatten when...

Haute école de gestion de Genève

Synergies in Mergers & Acquisitions : a comparative sectoral analysis

Öztürk, Aysenur ; Esposito-Cano, Antoinette (Dir.)

Mémoire de bachelor : Haute école de gestion de Genève, 2019 ; TDIBM 60.

Synergies or rather the non-achievement of synergies has been the major reason for many failures with regard to mergers and acquisitions. Though success does exist in certain sectors. This brings me to the research question of this thesis: Synergies achieved in the Pharmaceutical and Beauty–Personal Care sectors: Illusion or Real Value Creation? The principal purpose of this research study is...

Università della Svizzera italiana

Selective preservation of bone marrow mature recirculating but not marginal zone B cells in murine models of chronic inflammation

Traggiai, Elisabetta ; Casati, Anna ; Frascoli, Michela ; Porcellini, Simona ; Ponzoni, Maurilio ; Sanvito, Francesca ; Leng, Lin ; Bucala, Richard ; Moretta, Lorenzo ; Grassi, Fabio

In: Plos one, 2010, vol. 5, no. 6, p. e11262

Inflammation promotes granulopoiesis over B lymphopoiesis in the bone marrow (BM). We studied B cell homeostasis in two murine models of T cell mediated chronic inflammation, namely calreticulin-deficient fetal liver chimeras (FLC), which develop severe blepharitis and alopecia due to T cell hyper responsiveness, and inflammatory bowel disease (IBD) caused by injection of CD4+ naïve T cells...

Université de Fribourg

Gender innovation and migration in Switzerland

Falk, Francesca

(Palgrave studies in migration history)

ISBN: 9783030016265

This open access book analyses migration and its relation to sociopolitical transformation in Switzerland. It addresses how migration has made new forms of life possible and shows how this process generated gender innovation in different fields: the changing division of work, the establishment of a nursery infrastructure, access to higher education for women, and the struggle for female suffrage....

Università della Svizzera italiana

Transgenic expression of human signal regulatory protein alpha in Rag2−/−γc −/− mice improves engraftment of human hematopoietic cells in humanized mice

Strowig, Till ; Rongvaux, Anthony ; Rathinam, Chozhavendan ; Takizawa, Hitoshi ; Borsotti, Chiara ; Philbrick, William ; Eynon, Elizabeth E. ; Manz, Markus G. ; Flavell, Richard A.

In: Proceedings of the national academy of sciences of the United States of America, 2011, vol. 108, no. 32, p. 13218-13223

Transplantation of human hematopoietic stem cells into severely immunocompromised newborn mice allows the development of a human hematopoietic and immune system in vivo. NOD/scid/γc−/− (NSG) and BALB/c Rag2−/ −γc−/− mice are the most commonly used mouse strains for this purpose and a number of studies have demonstrated the high value of these model systems in areas spanning from...

Université de Fribourg

Permafrost is warming at a global scale

Biskaborn, Boris K. ; Smith, Sharon L. ; Noetzli, Jeannette ; Matthes, Heidrun ; Vieira, Gonçalo ; Streletskiy, Dmitry A. ; Schoeneich, Philippe ; Romanovsky, Vladimir E. ; Lewkowicz, Antoni G. ; Abramov, Andrey ; Allard, Michel ; Boike, Julia ; Cable, William L. ; Christiansen, Hanne H. ; Delaloye, Reynald ; Diekmann, Bernhard ; Drozdov, Dmitry ; Etzelmüller, Bernd ; Grosse, Guido ; Guglielmin, Mauro ; Ingeman-Nielsen, Thomas ; Isaksen, Ketil ; Ishikawa, Mamoru ; Johansson, Margareta ; Johannsson, Halldor ; Joo, Anseok ; Kaverin, Dmitry ; Kholodov, Alexander ; Konstantinov, Pavel ; Kröger, Tim ; Lambiel, Christophe ; Lanckman, Jean-Pierre ; Luo, Dongliang ; Malkova, Galina ; Meiklejohn, Ian ; Moskalenko, Natalia ; Oliva, Marc ; Phillips, Marcia ; Ramos, Miguel ; Sannel, A. Britta K. ; Sergeev, Dmitrii ; Seybold, Cathy ; Skryabin, Pavel ; Vasiliev, Alexander ; Wu, Qingbai ; Yoshikawa, Kenji ; Zheleznyak, Mikhail ; Lantuit, Hugues

In: Nature Communications, 2019, vol. 10, no. 1, p. 264

Permafrost warming has the potential to amplify global climate change, because when frozen sediments thaw it unlocks soil organic carbon. Yet to date, no globally consistent assessment of permafrost temperature change has been compiled. Here we use a global data set of permafrost temperature time series from the Global Terrestrial Network for Permafrost to evaluate temperature change across...