In: Internet interventions: the application of information technology in mental and behavioural health ; official journal of the European Society for Research on Internet Interventions (ESRII) and the International Society for Research on Internet Interventions (ISRII), Band 6, S. 80-88
Tetragonisca angustula and T. fiebrigi esterases were biochemically characterized by their inhibition pattern and thermostability. Workers of both species were collected from nests at the State University of Maringa. In T. fiebrigi three esterases were observed: EST-1 (β-esterase, cholinesterase I), EST-2 (α-esterase, cholinesterase II) and EST-4 (αβ-esterase, carboxylesterase). In T. angustula two esterases were detected: EST-3 (β-esterase, acetylesterase) e EST-4 (αβ-esterase, carboxylesterase). T. angustula EST-3 showed the highest thermostability, and it was not observed above 54°C, while in T. fiebrigi EST- 1 and EST-2 were not detected above 52°C. Through this characterization, it was observed that EST-4 of T. angustula and T. fiebrigi showed identical biochemical characteristics, and probably those esterases are encoded by the same gene in the two species. Together, the biochemical characterization and molecular markers show that the two species are differentiated and secondary contact between the populations can still be occurring.
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 201, S. 110798
The food production system throughout the European Union, which includes farm production, harvesting, transport, processing, storage, marketing and consumption, is vast, complex and open. The high volume of trade in fresh vegetables and fruits contributes to the vulnerability to contamination, whether by accident or intent. Outbreak investigation is critical to understanding the sources of contamination and the steps required to minimize it. The fact that much of the trade in these commodities is international makes it critical that mediation efforts and cooperative research cross national barriers, just as the pathogens do. Enhancing the biosecurity of food production requires assessment of the following: how is the food production system currently organized, in what ways might it be vulnerable to contamination, either accidental or deliberate, what are the primary factors that would allow discrimination between deliberate vs. accidental outbreaks, how can the epidemiological and surveillance systems in Europe be strengthened to shorten outbreak response and mediation times, how can implicated fresh produce be traced to its source, and what forensically valid subtyping method(s) is/are available for detection and discrimination of associated foodborne pathogens.
The food production system throughout the European Union, which includes farm production, harvesting, transport, processing, storage, marketing and consumption, is vast, complex and open. The high volume of trade in fresh vegetables and fruits contributes to the vulnerability to contamination, whether by accident or intent. Outbreak investigation is critical to understanding the sources of contamination and the steps required to minimize it. The fact that much of the trade in these commodities is international makes it critical that mediation efforts and cooperative research cross national barriers, just as the pathogens do. Enhancing the biosecurity of food production requires assessment of the following: how is the food production system currently organized, in what ways might it be vulnerable to contamination, either accidental or deliberate, what are the primary factors that would allow discrimination between deliberate vs. accidental outbreaks, how can the epidemiological and surveillance systems in Europe be strengthened to shorten outbreak response and mediation times, how can implicated fresh produce be traced to its source, and what forensically valid subtyping method(s) is/are available for detection and discrimination of associated foodborne pathogens.
Abelhas sem ferrão são insetos nativos brasileiros e que desempenham um elevado potencial polinizador para inúmeras culturas agrícolas e plantas nativas. Tetragonisca angustula é uma das espécies mais manejadas pelos meliponicultores, deste modo, conhecer estrutura genética dessas populações é de grande importância, principalmente, para futuros projetos de conservação. Para isso, neste estudo foi realizado a caracterização bioquímica e a relação genética por eletroforese das isoenzimas esterase (EST), isocitrato desidrogenase (IDH), enzima málica (ME) e malato desidrogenase (MDH). Abelhas adultas foram coletadas em meliponários de Maringá e Astorga na região Noroeste do estado do Paraná, Brasil. T. angustula de Maringá apresentou dois locos polimórficos (22,22%) e oito locos polimórficos foram observados em T. angustula de Astorga (88,89%). A heterozigosidade média estimada para T. angustula foi de 0,1260. O valor de FIS foi de 0,4036 e indicou um excesso de homozigose. O valor FIT mostrou que as duas populações não foram diferenciadas, sem nenhum fluxo gênico entre elas. Os resultados sugerem a mesma origem para as duas populações de acordo com a distância genética de Nei.
Palavras-chaves: Eletroforese. Caracterização Genética. Genética de Populações. Isoenzimas. Tetragonisca angustula.
Abstract Stingless bees are native Brazilian insects and have a high pollinating potential for countless agricultural crops and native plants. Tetragonisca angustula bees are one of the species most managed by honey farmers and knowing about the genetic structure of these populations is of great importance, especially for future conservation projects. For this, the biochemical characterization and genetic relationship by electrophoresis of esterase (EST), isocitrate dehydrogenase (IDH), malic enzyme (ME), and malate dehydrogenase (MDH) isozymes was analyzed. Adult bees were collected from meliponaries in Maringá and Astorga in the northwestern region of the state of Paraná, Brazil. T. angustula from Maringá presented two polymorphic loci (22.22%) and eight polymorphic loci were observed in T. angustula from Astorga (88.89%). Average heterozygosity estimated for T. angustula was 0.1260. FIS value was 0.4036 and indicated an excess of homozygous. FIT value showed that the two populations were not differentiated, without any gene flow between them. The results suggest the same origin for the two populations in agreement with Nei's genetic distance.
Keywords: Electrophoresis. Genetic Characterization. Isoenzymes. Population Genetics. Tetragonisca angustula.
Rice bran is a by-product of rice production with a high carbohydrate and starch content and the potential for bioethanol production by alcoholic fermentation. This article describes bioethanol production by Saccharomyces cerevisiae from hydrolyzed defatted rice bran (DRB) a rice by-product applying ultrasonic treatment and protease addition, as well as a sequential strategy of experimental design (SEED). In the first Central Composite Rotatable Design (CCRD), the temperature (25-30 °C) and inoculum concentration (0.5-50 g L-1) had positive effects on bioethanol production, while the effect of pH (4.0-6.0) was not significant. In the second CCRD, the temperature (28-35 °C) and inoculum concentration (10-70 g L-1) had negative and positive effects on bioethanol production (p < 0.05). Protease addition (15 µL g-1) increased the conversion of substrate into bioethanol by 76%. The optimized conditions for the production of 40.7 g L-1 bioethanol were a temperature of 31.5 °C and an inoculum concentration of 70 g L-1. Validation in a benchtop bioreactor produced 40.0 g L-1 of bioethanol from hydrolyzed DRB, and the SEED was characterized as a useful tool to improve bioethanol production from DRB. Furthermore, the DRB proved to be a by-product with great potential for bioethanol production, derived from alternative sources not commonly used in human food.
The steel industry is an important engine for sustainable growth, added value, and high-quality employment within the European Union. It is committed to reducing its CO2 emissions due to production by up to 50% by 2030 compared to 1990′s level by developing and upscaling the technologies required to contribute to European initiatives, such as the Circular Economy Action Plan (CEAP) and the European Green Deal (EGD). The Clean Steel Partnership (CSP, a public–private partnership), which is led by the European Steel Association (EUROFER) and the European Steel Technology Platform (ESTEP), defined technological CO2 mitigation pathways comprising carbon direct avoidance (CDA), smart carbon usage SCU), and a circular economy (CE). CE ap-proaches ensure competitiveness through increased resource efficiency and sustainability and consist of different issues, such as the valorization of steelmaking residues (dusts, slags, sludge) for internal recycling in the steelmaking process, enhanced steel recycling (scrap use), the use of secondary carbon carriers from non-steel sectors as a reducing agent and energy source in the steelmaking process chain, and CE business models (supply chain analyses). The current paper gives an overview of different technological CE approaches as obtained in a dedicated workshop called "Resi4Future—Residue valorization in iron and steel industry: sustainable solutions for a cleaner and more competitive future Europe" that was organized by ESTEP to focus on future challenges toward the final goal of industrial deployment.
We present a search for gravitational waves from 116 known millisecond and young pulsars using data from the fifth science run of the LIGO detectors. For this search, ephemerides overlapping the run period were obtained for all pulsars using radio and X-ray observations. We demonstrate an updated search method that allows for small uncertainties in the pulsar phase parameters to be included in the search. We report no signal detection from any of the targets and therefore interpret our results as upper limits on the gravitational wave signal strength. The most interesting limits are those for young pulsars. We present updated limits on gravitational radiation from the Crab pulsar, where the measured limit is now a factor of 7 below the spin-down limit. This limits the power radiated via gravitational waves to be less than similar to 2% of the available spin-down power. For the X-ray pulsar J0537-6910 we reach the spin-down limit under the assumption that any gravitational wave signal from it stays phase locked to the X-ray pulses over timing glitches, and for pulsars J1913+1011 and J1952+3252 we are only a factor of a few above the spin-down limit. Of the recycled millisecond pulsars, several of themeasured upper limits are only about an order of magnitude above their spin-down limits. For these our best (lowest) upper limit on gravitational wave amplitude is 2.3 x 10(-26) for J1603-7202 and our best (lowest) limit on the inferred pulsar ellipticity is 7.0 x 10(-8) for J2124-3358. ; Australian Research Council ; Council of Scientific and Industrial Research of India ; Istituto Nazionale di Fisica Nucleare of Italy ; Spanish Ministerio de Educacion y Ciencia ; Conselleria d'Economia Hisenda i Innovacio of the Govern de les Illes Balears ; Netherlands Organisation for Scientific Research ; Royal Society ; Scottish Funding Council ; Polish Ministry of Science and Higher Education ; Foundation for Polish Science ; Scottish Universities Physics Alliance ; National Aeronautics and Space Administration ; Carnegie Trust ; Leverhulme Trust ; David and Lucile Packard Foundation ; Research Corporation ; Alfred P. Sloan Foundation ; Natural Sciences and Engineering Research Council of Canada ; Commonwealth Government ; Astronomy
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UK Space Agency: ST/P002196/1 ; This Supplement provides supporting material for Abbott et al. (2016a). We briefly summarize past electromagnetic (EM) follow-up efforts as well as the organization and policy of the current EM follow-up program. We compare the four probability sky maps produced for the gravitational-wave transient GW150914, and provide additional details of the EM follow-up observations that were performed in the different bands.
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