Comparing Organic Urban Consumers in Developing and Developed Countries: First Results in Brazil and France

Despite numerous studies reporting on sustainable consumption or organic consumer profiles, there is a gap in thorough understanding of organic consumers in different places, since most of studies only investigate organic consumption in most developed countries. The goal of this paper is thus to compare French and Brazilian organic consumers, so as to know if people think and behave differently or similarly in different places. Individual interviews were conducted in each country, with consumers in organic producers market in Brazil, and consumers who buy organic products from farmers markets or local organic food network in France. Products were selected to cover examples of different choice situations such as imported organic products that compete with comparable products of local origin, or organic local products in supermarkets that compete with similar products from other distribution outlets. Results show common consumer concerns such as quality or personal and family health, and common preference for local and organic products but for different reasons. However, results also shed light on different patterns related to environmental concerns or commitment to supporting small or local farmers. The impacts of the findings of this study relate to a diversity of topics such as social mobilization for sustainable agriculture, local organic food networks and environmental concerns. ...French Abstract : De nombreuses recherches portent sur la consommation durable et le profil des consommateurs de produits biologiques, mais ces recherches portent sur la consommation dans les pays développés, et ne permettent pas de savoir s'il existe des différences de consommation entre pays développés et pays en développement. Le but de cet article est de comparer le comportement de consommateurs de produits biologiques en France et au Brésil, sur la base d'entretiens individuels permettant de comparer plusieurs situations de choix : produits biologiques importés en concurrence avec des produits locaux comparables, produits biologiques locaux disponibles en supermarché ou d'en d'autres circuits de distribution,... Les résultats mettent en évidence des attentes communes, comme la qualité ou la santé, et des préférences partagées pour les produits biologiques et locaux, mais pour des raisons différentes dans les deux échantillons. Les résultats montrent également que l'importance accordée aux préoccupations environnementales et au soutien aux petits producteurs locaux n'est pas la même dans les deux échantillons. Cette recherche conduit à des pistes de réflexion portant sur la mobilisation des consommateurs pour la consommation durable, les réseaux de production et consommation de produits biologiques et les préoccupations environnementales des consommateurs.ORGANIC FOOD; LOCAL FOOD; SUSTAINABLE CONSUMPTION; QUALITATIVE STUDY

Identification of phenolic compounds and volative compounds in polyphenols-rich extract of hybrid vitis vinifera l. Cultivars and their antioxidant properties.

There is little knowledge about the phenolic compounds of hybrids grape cultivars reported in literature. This work aimed to characterize the bioactive and volatile compounds from new hybrids grape cultivars (Sweet sapphire-SS and Sweet surprise-SU). The antioxidant capacity and total phenolic content were evaluated using DPPH, ABTS, FRAP, ORAC and Folin – Ciocalteu assays, using water and acetone extracts.SLACA, 12. De 4 a 7 de Novembro de 2017

Diversity of phytophagous stink bugs (Hemiptera: Pentatomidae) associated with rice crop in Itapecuru-Mirim, Maranhão, Brazil.

From the diversity of phytophagous stink bugs found in rice fields in Itapecuru-Mirim, Maranhão, we have the first record of Edessa meditabunda in the crop, and the second record in Brazil of Paratibraca dubia. Additionally, Tibraca limbativentris, Oebalus poecilus, and Oebalus ypsilongriseus were observed

Effect of extracts of jabuticaba (Myrciaria jaboticaba) and jamun berry (Syzygium cumini) on human colon adenocarcinoma cells (HT-29).

SLACA, 12. De 4 a 7 de Novembro de 2017

Antiproliferative Activity on Human Colon Adenocarcinoma Cells and In Vitro Antioxidant Effect of Anthocyanin-Rich Extracts from Peels of Species of the Myrtaceae Family.

There is a significant indication of the beneficial health effects of fruit rich diets. Fruitsof native plant species have noticeably different phytochemicals and bioactive effects. The aim ofthis work was to characterize and compare the constituents of jabuticaba (Myrciaria jaboticaba, MJ),jamun-berry (Syzygium cumini, SC), and malay-apple (Syzygium malaccense, SM) extracts and theirinfluence on antioxidant activityin vitroand antiproliferative effects on human colon adenocarci-noma cells. According to the results, dried peel powders (DP) have a high anthocyanin content,phenolic compounds, and antioxidant activity when compared to freeze dried extracts (FD).M.jaboticabadried peel powder extract had a higher total anthocyanin and phenolic compounds content(802.90±1.93 and 2152.92±43.95 mg/100 g, respectively). A reduction in cell viability of HT-29cells after treatment withM. jaboticabaextracts (DP-MJ and FD-MJ) was observed via MTT assay.Flow cytometry showed that the treatment with the anthocyanin-rich extracts from MJ, SC, and SMhad an inhibitory impact on cell development due to G2/M arrest and caused a rise in apoptotic cellsin relation to the control group. The findings of this study highlight the potential of peel powdersfromMyrtaceaefruits as an important source of natural antioxidants and a protective effect againstcolon adenocarcinom

Measurement of the Strong Coupling Constant from Inclusive Jet Production at the Tevatron pˉp\bar pp Collider

We report a measurement of the strong coupling constant, $\alpha_s(M_Z)$, extracted from inclusive jet production in $p\bar{p}$ collisions at $\sqrt{s}=$1800 GeV. The QCD prediction for the evolution of $\alpha_s$ with jet transverse energy $E_T$ is tested over the range 40<$E_T$<450 GeV using $E_T$ for the renormalization scale. The data show good agreement with QCD in the region below 250 GeV. In the text we discuss the data-theory comparison in the region from 250 to 450 GeV. The value of $\alpha_s$ at the mass of the $Z^0$ boson averaged over the range 40<$E_T$<250 GeV is found to be $\alpha_s(M_{Z})= 0.1178 \pm 0.0001{(\rm stat)}^{+0.0081}_{-0.0095}{\rm (exp. syst)}$. The associated theoretical uncertainties are mainly due to the choice of renormalization scale (^{+6%}_{-4%}) and input parton distribution functions (5%).Comment: 7 pages, 3 figures, using RevTeX. Submitted to Physical Review Letter

Cambios en las características clínicas y desenlaces de pacientes hospitalizados por COVID-19 durante dos años de pandemia: experiencia en un hospital venezolano

Objetivos. Determinar los cambios en las características clínicas y desenlaces intrahospitalarios de los pacientes hospitalizados por COVID-19 en un hospital privado de Caracas durante dos años de pandemia. Materiales y métodos. Estudio retrospectivo, observacional, de pacientes hospitalizados por COVID-19. Se investigó la correspondencia entre las olas de ingresos hospitalarios con las variantes circulantes del SARS-CoV-2 en la población general del Distrito Capital y estado Miranda. Resultados. Se incluyeron 1025 pacientes (569 hombres y 456 mujeres), con edad promedio de 62,9 DE: 16,2 años. Cuatro olas de ingresos hospitalarios fueron identificadas: primera (marzo-noviembre 2020) 150/1025 (14,6%) casos; segunda (diciembre-2020 a mayo-2021) 415/1025 (40,5%) casos; tercera (junio-diciembre 2021) 344/1025 (33,6%) casos; cuarta (enero-febrero 2022) 116/1025 (11,3%) casos. La edad promedio fue mayor en la cuarta ola (primera 64,0±15,7, segunda 61,4±15,8, tercera 62,1±16,5, y cuarta ola 68,5±16,4), mientras que la proporción de pacientes masculinos (primera 66,7%, segunda 58,8%, tercera 50,3%, y cuarta 44,8%), los pacientes con enfermedad grave-crítica (primera 65,3%, segunda 57%, tercera 51,7% y cuarta 44,8%), la estadía intrahospitalaria (primera 9,1±6,0, segunda 9,0±7,3, tercera 8,8±7,7, y cuarta 6,9±5,0 días), los ingresos a la UCI (primera 23,3%, segunda 15,7%, tercera 14,0%, y cuarta 11,2%; p=0,027) y la mortalidad (primera 21.8%, segunda 10,7%, tercera 9,1%, y cuarta 7,1%; p<0,001) disminuyeron progresivamente con el tiempo. Conclusiones. Los resultados muestran menor frecuencia de casos severos y mejoría de los desenlaces intrahospitalarios en dos años de pandemia. Es probable que los cambios en las variantes circulantes, las mejoras del manejo de la enfermedad y la vacunación hayan influido sobre estos resultados

The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation

WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for the William Herschel Telescope, saw first light in late 2022. WEAVE comprises a new 2-deg field-of-view prime-focus corrector system, a nearly 1000-multiplex fibre positioner, 20 individually deployable ‘mini’ integral field units (IFUs), and a single large IFU. These fibre systems feed a dual-beam spectrograph covering the wavelength range 366–959 nm at R ∼ 5000, or two shorter ranges at R ∼ 20 000. After summarizing the design and implementation of WEAVE and its data systems, we present the organization, science drivers, and design of a five- to seven-year programme of eight individual surveys to: (i) study our Galaxy’s origins by completing Gaia’s phase-space information, providing metallicities to its limiting magnitude for ∼3 million stars and detailed abundances for ∼1.5 million brighter field and open-cluster stars; (ii) survey ∼0.4 million Galactic-plane OBA stars, young stellar objects, and nearby gas to understand the evolution of young stars and their environments; (iii) perform an extensive spectral survey of white dwarfs; (iv) survey ∼400 neutral-hydrogen-selected galaxies with the IFUs; (v) study properties and kinematics of stellar populations and ionized gas in z 1 million spectra of LOFAR-selected radio sources; and (viii) trace structures using intergalactic/circumgalactic gas at z > 2. Finally, we describe the WEAVE Operational Rehearsals using the WEAVE Simulator