Affiner les résultats


Université de Fribourg

Developing Foram-AMBI for biomonitoring in the Mediterranean: Species assignments to ecological categories

Shahzad, Khurram ; Betzler, Christian ; Ahmed, Nadeem ; Qayyum, Farrukh ; Spezzaferri, Silvia ; Qadir, Anwar

In: Marine Micropaleontology, 2018, vol. 140, p. 33–45

Based on high-resolution seismic and well datasets, this paper examines the evolution and drowning history of a Paleocene–Eocene carbonate platform in the Offshore Indus Basin of Pakistan. This study uses the internal seismic architecture, well log data as well as the microfauna to reconstruct factors that governed the carbonate platform growth and demise. Carbonates dominated by larger...

Université de Fribourg

Geographic differential privacy for mobile crowd coverage maximization

Wang, Leye ; Qin, Gehua ; Yang, Dingqi ; Han, Xiao ; Ma, Xiaojuan

In: Proceedings of the AAAI Conference on Artificial Intelligence (AAAI'18), New Orleans, USA

For real-world mobile applications such as location-based advertising and spatial crowdsourcing, a key to success is targeting mobile users that can maximally cover certain locations in a future period. To find an optimal group of users, existing methods often require information about users' mobility history, which may cause privacy breaches. In this paper, we propose a method to maximize...

Université de Neuchâtel

Systemic insecticides (neonicotinoids and fipronil) : trends, uses, mode of action and metabolites

Simon-Delso, N ; Amaral-Rogers, V ; Belzunces, L. P ; Bonmatin, J. M ; Chagnon, Madeleine ; Downs, C. A ; Furlan, L ; Gibbons, D. W ; Giorio, C ; Girolami, V ; Goulson, D ; Kreutzweiser, David. P ; Krupke, C ; Liess, M ; Long, E ; McField, M ; Mineau, Pierre ; Mitchell, Edward A. D ; Morrissey, Christy A ; Noome Dominique A ; Pisa, L ; Settele, J ; Stark, J. D ; Tapparo, A ; Van Dyck, H ; van Praagh, J ; Van der Sluijs, Jeroen P ; Whitehorn, P. R ; Wiemers, M

In: Environmental Science and Pollution Research, 2015, vol. 22, no. 1, p. 5-34

Since their discovery in the late 1980s, neonicotinoid pesticides have become the most widely used class of insecticides worldwide, with large-scale applications ranging from plant protection (crops, vegetables, fruits), veterinary products, and biocides to invertebrate pest control in fish farming. In this review, we address the phenyl-pyrazole fipronil together with neonicotinoids because of...

Université de Fribourg

Ranking in evolving complex networks

Liao, Hao ; Mariani, Manuel Sebastian ; Medo, Matúš ; Zhang, Yi-Cheng ; Zhou, Ming-Yang

In: Physics Reports, 2017, vol. 689, p. 1–54

Complex networks have emerged as a simple yet powerful framework to represent and analyze a wide range of complex systems. The problem of ranking the nodes and the edges in complex networks is critical for a broad range of real-world problems because it affects how we access online information and products, how success and talent are evaluated in human activities, and how scarce resources are...

Université de Fribourg

Re-evaluation of the Haarlem Archaeopteryx and the radiation of maniraptoran theropod dinosaurs

Foth, Christian ; Rauhut, Oliver W. M.

In: BMC Evolutionary Biology, 2017, vol. 17, p. 236

Archaeopteryx is an iconic fossil that has long been pivotal for our understanding of the origin of birds. Remains of this important taxon have only been found in the Late Jurassic lithographic limestones of Bavaria, Germany. Twelve skeletal specimens are reported so far. Archaeopteryx was long the only pre-Cretaceous paravian theropod known, but recent discoveries from the Tiaojishan...

Université de Fribourg

A Sacred Space for a Holy Icon: The Shrine of Our Lady of Saydnaya

Bacci, Michele

In: Hierotopy. Studies in the Making of Sacred Spaces. Material from the International Symposium, 2004, p. 132-134

The monastery of Our Lady of Saydnaya, located 22 km east of Damascus, still proves to be one of the most important cult-centres of present-day Syria; although it is inhabited and controlled by Christian (i.e. Greek Orthodox) nuns, its church, housing a very famous icon of the Virgin Mary, is daily visited also by a great many Muslim worshippers. Its renown dates back to the late 12th century,...

Haute école de gestion de Genève

A cross-cultural study of consumer's ethical orientation between French-speaking Europe and Peru

Holmberg, Alexandre ; Maeder, Eric (Dir.)

Mémoire de bachelor : Haute école de gestion de Genève, 2017 ; TDIBM 19.

This research in international marketing ethics first looks at which aspects shape ethical behaviors for consumers. The literature review revealed the complexity of the matter with consumers making ethical decisions based on two simultaneous approaches influenced by cultural orientation, contextual environment, and personal characteristics. It then aims at comparing the ethical orientation of two...

Université de Fribourg

Including covariates in the regression discontinuity design

Frölich, Markus ; Huber, Martin

(Working Papers SES ; 489)

This paper proposes a fully nonparametric kernel method to account for observed covariates in regression discontinuity designs (RDD), which may increase precision of treatment effect estimation. It is shown that conditioning on covariates reduces the asymptotic variance and allows estimating the treatment effect at the rate of one-dimensional nonparametric regression, irrespective of the...

Université de Fribourg

First record of fossil anguines (Squamata; Anguidae) from the Oligocene and Miocene of Turkey

Čerňanský, Andrej ; Vasilyan, Davit ; Georgalis, Georgios L. ; Joniak, Peter ; Mayda, Serdar ; Klembara, Jozef

In: Swiss Journal of Geosciences, 2017, vol. 110, no. 3, p. 741–751

Fossil anguine lizard specimens from several Turkish localities are described in this paper. The material comes from ten different localities, spanning a large geographic area consisting of both parts of the European Turkey and Anatolia, and ranging in age from the Oligocene to the Late Miocene. In certain cases, the generic determination was possible and, accordingly, members of Ophisaurus...

Université de Fribourg

A review of the fossil record of turtles of the clade Thalassochelydia

Anquetin, Jérémy ; Püntener, Christian ; Joyce, Walter G.

In: Bulletin of the Peabody Museum of Natural History, 2017, vol. 58, no. 2, p. 317–369

The Late Jurassic (Oxfordian to Tithonian) fossil record of Europe and South America has yielded a particularly rich assemblage of aquatic pan-cryptodiran turtles that are herein tentatively hypothesized to form a monophyletic group named Thalassochelydia. Thalassochelydians were traditionally referred to three families, Eurysternidae, Plesiochelyidae, and Thalassemydidae, but the current...