855 research outputs found
Serum contents of immunoreactive pancreatic secretory trypsin inhibitor and seminal plasma acrosin-trypsin inhibitor in polytraumatized patients
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Assessment of targeted selective treatment criteria to control subclinical gastrointestinal nematode infections on sheep farms
Control of sheep gastrointestinal nematode (GIN) infections mostly relies on the use of anthelmintics. Refugia-based control strategies as targeted selective treatments (TST) can delay anthelmintic resistance development, but the optimal decision criteria for selecting individuals to be treated in subclinical infection scenarios remain unclear. The present study aimed to evaluate the suitability of body condition score (BCS) and faecal egg counts (FEC) as treatment indicators and to determine their optimized threshold values for treatment in TST by determining the relationships of BCS, FEC and anthelmintic treatment with several productive parameters in pre-mating and pre-partum periods at an individual level. Deworming in pre-mating period increased BCS gain, but its magnitude was directly associated with strongyle FEC before treatment. Deworming also increased fertility in ewes with BCS 400 epg before treatment. These results showed that FEC and especially BCS can be potential decision criteria for the implementation of TST in these types of scenarios. The TST scheme derived from the present results on the control of GIN infections should include anthelmintic treatment of ewes with BCS lower than ˜ 3 approximately five weeks before mating and lambing. In the pre-lambing period, treatment may be unnecessary if flock mean strongyle FEC is lower than ˜ 200 epg, as the proportion of ewes with individual FEC > 400 epg would be very low. The results suggest that implementation of this TST scheme would provide benefits, such as the improvement of productivity, a rational management of parasites in refugia, and preservation of future efficacy of anthelmintics, in comparison to traditional deworming schemes
Photoinactivation of microorganisms with sub-micromolar concentrations of imidazolium metallophthalocyanine salts
Loot boxes in Spanish adolescents and young adults: Relationship with internet gaming disorder and online gambling disorder
[EN] In recent years, the video game industry has introduced the possibility of buying virtual random goods (e.g., loot boxes) in electronic games using money through microtransactions, which are becoming more widespread and potentially akin to gambling. Although previous research has linked loot boxes with problematic gaming and gambling behaviors, there are very few studies that relate them to the clinical indicators of these problems. The overall goal of this study is to ascertain the prevalence of loot box purchasing behavior and its association with Internet Gaming Disorder (IGD) and Online Gambling Disorder (OGD). A secondary objective is to develop and analyze the psychometric properties of the Problematic Use of Loot Boxes Questionnaire (PU-LB). A crosssectional study was conducted among 6633 participants (4236 males, 63.9%, and 4123 minors, 62.2%) with an average age of 16.73 +/- 3.40 in a range of 11-30 years. The Spanish versions of the Internet Gaming Disorder Scale-Short Form (IGDS9-SF) and the Online Gambling Disorder Questionnaire (OGD-Q) were used. A total of 2013 (30.4%) participants reported purchasing a loot box in the last 12 months (28.9% among minors). A person who had purchased a loot box in the last 12 months had a prevalence rate (PR) of 3.66 [95% CI 2.66, 5.05] of presenting an IGD, and a PR = 4.85 [IC 95% 2.58, 9.12] of presenting an OGD. The PU-LB exhibited adequate reliability and validity indicators and was positively and significantly related to loot box expenditure, IGDS9-SF, and OGD-Q scores. The results are further discussed, and practical implications and future lines of research proposed.This study has been funded by the Ministry of Science and Innovation [RTI2018-094212-B-I00: (CIBER-AACC)] and by the International University of La Rioja in its Own Research Plan [Grupo Ciberpsicologia triennium 2017-2020 and biennium 2020-2022]. Open Access funding provided by University of Basque Country UPV/EHU
The application of multiplex fluorimetric sensor for the analysis of flavonoids content in the medicinal herbs family Asteraceae, Lamiaceae, Rosaceae
BACKGROUND: The aim of our research work was to quantify total flavonoid contents in the leaves of 13 plant species family Asteraceae, 8 representatives of family Lamiaceae and 9 plant species belonging to familyRosaceae, using the multiplex fluorimetric sensor. Fluorescence was measured using optical fluorescence apparatus Multiplex(R) 3 (Force-A, France) for non-destructive flavonoids estimation. The content of total flavonoids was estimated by FLAV index (expressed in relative units), that is deduced from flavonoids UV absorbing properties. RESULTS: Among observed plant species, the highest amount of total flavonoids has been found in leaves ofHelianthus multiflorus (1.65 RU) and Echinops ritro (1.27 RU), Rudbeckia fulgida (1.13 RU) belonging to the family Asteraceae. Lowest flavonoid content has been observed in the leaves of marigold (Calendula officinalis) (0.14 RU) also belonging to family Asteraceae. The highest content of flavonoids among experimental plants of family Rosaceae has been estimated in the leaves of Rosa canina (1.18 RU) and among plant species of family Lamiaceae in the leaves of Coleus blumei (0.90 RU). CONCLUSIONS: This research work was done as pre-screening of flavonoids content in the leaves of plant species belonging to family Asteraceae, Lamiaceae and Rosaceae. Results indicated that statistically significant differences (P > 0.05) in flavonoids content were observed not only between families, but also among individual plant species within one family
Conservación in situ y uso sustentable de los palmares de Butia odorata en la pampa Brasileña y Uruguaya.
Rabbit haemorrhagic disease: Cross-protection and comparative pathogenicity of GI.2/RHDV2/b and GI.1b/RHDV lagoviruses in a challenge trial
European rabbits (Oryctolagus cuniculus) are severely affected by rabbit haemorrhagic disease (RHD). Caused by a lagovirus, the disease leads to losses in the rabbit industry and has implications for wildlife conservation. Past RHD outbreaks have been caused by GI.1/RHDV genotype viruses. A new virus belonging to the GI.2/RHDV2/b genotype emerged in 2010, quickly spreading and replacing the former in several countries; however, limited data are available on its pathogenicity and epidemiological factors. The present work extends these issues and evaluates cross-protection between both genotypes. Ninety-four and 88 domestic rabbits were challenged with GI.2/RHDV2/b and GI.1b/RHDV variant isolates, respectively. Cross-protection was determined by a second challenge on survivors with the corresponding strain. Mortality by GI.2/RHDV2/b was highly variable due to unknown individual factors, whereas mortality by GI.1b/RHDV was associated with age. Mortality in rabbits < 4 weeks old was 84%, higher than previously reported. Cross-protection was not identical between the two viruses because the ratio of mortality rate ratios for the first and second challenges was 3.80 ± 2.68 times higher for GI.2/RHDV2/b than it was for GI.1b/RHDV. Rabbit susceptibility to GI.2/RHDV2/b varied greatly and appeared to be modulated by the innate functionality of the immune response and/or its prompt activation by other pathogens. GI.1b/RHDV pathogenicity appeared to be associated with undetermined age-related factors. These results suggest that GI.2/RHDV2/b may interact with other pathogens at the population level but does not satisfactorily explain the GI.1b/RHDV virus's quick replacement
La conquista de la ciudad de Africa en Berberia
Copia digital. Madrid : Ministerio de Cultura. Subdirección General de Coordinación Bibliotecaria, 2006El autor consta en prelim.Marca tip. en r. de M\b8\sSign. : A-M\p8\
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