Search results for "USA"
showing 10 items of 3178 documents
The genetic identity of the only Italian population of the genus Macroprotodon Guichenot, 1850 on the island of Lampedusa, Sicily
2020
The only Italian population of false smooth snakes is found on Lampedusa, a small island located in the Sicilian Channel and part of the African continental shelf. The taxonomic identity of this population is currently uncertain, although it is most often attributed to Macroprotodon cucullatus textilis on a morphological basis. We present here the first genetic data on this population. The analysis carried out on the mitochondrial cytochrome b gene shows that the Lampedusan false smooth snake belongs to a clade shared with a single sample from central Tunisia. The genetic distance between this lineage and its sister group (M. abubakeri) is comparable to or higher than that found among many …
Comparative Analysis of Machine Learning Methods to Predict Growth of F. sporotrichioides and Production of T-2 and HT-2 Toxins in Treatments with Et…
2021
The efficacy of ethylene-vinyl alcohol copolymer films (EVOH) incorporating the essential oil components cinnamaldehyde (CINHO), citral (CIT), isoeugenol (IEG), or linalool (LIN) to control growth rate (GR) and production of T-2 and HT-2 toxins by Fusarium sporotrichioides cultured on oat grains under different temperature (28, 20, and 15 °C) and water activity (aw) (0.99 and 0.96) regimes was assayed. GR in controls/treatments usually increased with increasing temperature, regardless of aw, but no significant differences concerning aw were found. Toxin production decreased with increasing temperature. The effectiveness of films to control fungal GR and toxin production was as follows: EVOH…
Efficacy of an internet-based psychological intervention for problem gambling and gambling disorder: study protocol for a randomized controlled trial
2021
Gambling Disorder is a prevalent non-substance use disorder, which contrasts with the low number of people requesting treatment. Information and Communication Technologies (ICT) could help to enhance the dissemination of evidence-based treatments and considerably reduce the costs. The current study seeks to assess the efficacy of an online psychological intervention for people suffering from gambling problems in Spain. The proposed study will be a two-arm, parallel-group, randomized controlled trial. A total of 134 participants (problem and pathological gamblers) will be randomly allocated to a waiting list control group (N = 67) or an intervention group (N = 67). The intervention program i…
Importance of proper conduct of clinical trials
2021
Altopiano ragusano (Sicilia Sud-orientale):nota di geologia strutturale
2009
Digital resources in senegalese hight education : state of play and prospective study
2014
It is in the context of poverty or information exclusion that the massive dissemination of information and technology tools in Senegalese academic libraries responds to an urgent need for transformation and improvement of operational modes as well as modernization of services for different audiences, in particular students. Currently, in almost all academic and research libraries of Senegal digitization activities that crossed the rise of the Internet are being developed. This has created a real increasing effect of digital resources, by the establishment of means of creation and by expansion of access and of sharing of scientific and technical information in higher education institutions. …
Between Interactions and Aggregates: The PolyQ Balance
2021
Abstract Polyglutamine regions (polyQ) are highly abundant consecutive runs of glutamine residues. They have been generally studied in relation to the so-called polyQ-associated diseases, characterized by protein aggregation caused by the expansion of the polyglutamine tract via a CAG-slippage mechanism. However, more than 4800 human proteins contain a polyQ, and only 9 of these regions are known to be associated with disease. Computational sequence studies and experimental structure determinations are completing a more interesting picture in which polyQ emerge as a motif for modulation of protein-protein interactions. But long polyQ regions may lead to an excess of interactions, and produc…
Particulier employeur : gare à la faute inexcusable !
2021
International audience
Doubled haploid production in fruit crops
2006
The interest of fruit breeders in haploids and doubled haploids (DH), lies in the possibility of shortening the time needed to produce homozygous lines compared to conventional breeding. Haplo-diploidization through gametic embryogenesis allows single-step development of complete homozygous lines from heterozygous parents. In a conventional breeding programme, a pure line is developed after several generations of selfing. With fruit crops, characterized by a long reproductive cycle, a high degree of heterozygosity, large size, and, sometimes, self-incompatibility, there is no way to obtain haploidization through conventional methods. This paper reviews the current status of research on doub…
Free riding as méchanism
1998
Free-riding is methodologically puzzling. It is at the same time important and often not observed as an actual phenomenon. The paper explores the possibility of treating free riding as an underlying or causal mechanism. As such, free riding is to be treated as part of the real world rather than of the world of models or theories. However, the free riding mechanism is particularly prone to operate not in isolation but together with other mechanisms. This feature has consequences on issues such as empirical content, testability or relevance. These questions are discussed in the light of some recent work in philosophy of science and with special attention given to the development of experiment…