31 research outputs found
Simultaneous Mutations in Multi-Viral Proteins Are Required for Soybean mosaic virus to Gain Virulence on Soybean Genotypes Carrying Different R Genes
BACKGROUND: Genetic resistance is the most effective and sustainable approach to the control of plant pathogens that are a major constraint to agriculture worldwide. In soybean, three dominant R genes, i.e., Rsv1, Rsv3 and Rsv4, have been identified and deployed against Soybean mosaic virus (SMV) with strain-specificities. Molecular identification of virulent determinants of SMV on these resistance genes will provide essential information for the proper utilization of these resistance genes to protect soybean against SMV, and advance knowledge of virus-host interactions in general. METHODOLOGY/PRINCIPAL FINDINGS: To study the gain and loss of SMV virulence on all the three resistance loci, SMV strains G7 and two G2 isolates L and LRB were used as parental viruses. SMV chimeras and mutants were created by partial genome swapping and point mutagenesis and then assessed for virulence on soybean cultivars PI96983 (Rsv1), L-29 (Rsv3), V94-5152 (Rsv4) and Williams 82 (rsv). It was found that P3 played an essential role in virulence determination on all three resistance loci and CI was required for virulence on Rsv1- and Rsv3-genotype soybeans. In addition, essential mutations in HC-Pro were also required for the gain of virulence on Rsv1-genotype soybean. To our best knowledge, this is the first report that CI and P3 are involved in virulence on Rsv1- and Rsv3-mediated resistance, respectively. CONCLUSIONS/SIGNIFICANCE: Multiple viral proteins, i.e., HC-Pro, P3 and CI, are involved in virulence on the three resistance loci and simultaneous mutations at essential positions of different viral proteins are required for an avirulent SMV strain to gain virulence on all three resistance loci. The likelihood of such mutations occurring naturally and concurrently on multiple viral proteins is low. Thus, incorporation of all three resistance genes in a soybean cultivar through gene pyramiding may provide durable resistance to SMV
Implantação e impacto do Programa Nacional de Suplementação de Ferro no município de Viçosa - MG
Objetivou-se avaliar a implantação do Programa Nacional de Suplementação de Ferro no município de Viçosa/MG e seu impacto em lactentes não anêmicos de 6 a 18 meses de idade, atendidos pelas Equipes de Saúde da Família. Realizou-se entrevistas aos profissionais de nível superior e às mães/responsáveis pelas crianças. As crianças não anêmicas e que não recebiam suplementação anteriormente (n=133) foram suplementadas com xarope de sulfato ferroso por seis meses. Realizou-se dosagem de hemoglobina, avaliação antropométrica e de condições socioeconômicas, antes e após os seis meses. Classificou-se como alta adesão as crianças que ingeriram 75% ou mais da dose prescrita e como baixa adesão as demais, de acordo com o referido pelas mães. Sobre a implantação do PNSF no município, observou-se que o sistema de distribuição nem sempre foi acessível ao grupo prioritário e houve ausência de capacitação e motivação da maioria dos Agentes Comunitários de Saúde; sobre o grupo prioritário observou-se ausência de divulgação para promoção do PNSF, além de sensibilização e educação somente de parte das mães; quanto ao suplemento as crianças tiveram baixa adesão e a dosagem não foi efetiva na prevenção da anemia. Portanto, a implantação do PNSF no município revelou entraves operacionais importantes.The scope of this work was to evaluate the implementation of the National Iron Supplementation Program (NISP) in Viçosa in the State of Minas Gerais and its impact on 6- to 18-month-old non-anemic infants assisted by the Family Health Teams. Interviews were conducted with the professionals and with the children's mothers/guardians. The non-anemic children who didn't receive the earlier supplementation (n=133) were given ferrous sulphate syrup for six months. Hemoglobin dosage, anthropometric evaluation and a socioeconomic survey were conducted before and after the six-month period. Children who ingested 75% or more of the prescribed dosage were classified as high adhesion, while the others were classified as low adhesion, according to the mothers' testimonials. With respect to the implementation in the city, the distribution system was not always available to the priority group and there was a lack of training and motivation on the part of most Community Health Agents. The lack of promotion of NISP among the priority group was detected, apart from a mothers' awareness drive. Regarding diet supplementation, children showed low adhesion and the dosage wasn't effective in preventing anemia. Therefore, important operational barriers to implementation were observed
Effectiveness of two programs of intermittent ferrous supplementation for treating iron-deficiency anemia in infants: randomized clinical trial
Instrument for assessing the quality of mobile emergency pre-hospital care: content validation
OBJECTIVES To validate an instrument to assess quality of mobile emergency pre-hospital care. METHOD A methodological study where 20 professionals gave their opinions on the items of the proposed instrument. The analysis was performed using Kappa test (K) and Content Validity Index (CVI), considering K> 0.80 and CVI ≥ 0.80. RESULTS Three items were excluded from the instrument: Professional Compensation; Job Satisfaction and Services Performed. Items that obtained adequate K and CVI indexes and remained in the instrument were: ambulance conservation status; physical structure; comfort in the ambulance; availability of material resources; user/staff safety; continuous learning; safety demonstrated by the team; access; welcoming; humanization; response time; costumer privacy; guidelines on care; relationship between professionals and costumers; opportunity for costumers to make complaints and multiprofessional conjunction/actuation. CONCLUSION The instrument to assess quality of care has been validated and may contribute to the evaluation of pre-hospital care in mobile emergency services
Variation in the diet of a small characin according to the riparian zone coverage in an Atlantic Forest stream, northeastern Brazil
Everyday norms have become more permissive over time and vary across cultures
Data availability:
All data and materials generated and/or analyzed in this study, including the raw data underlying the figures and tables, are available at OSF (https://osf.io/sh4rb/, https://doi.org/10.17605/OSF.IO/SH4RB).Code availability:
The R syntax for all analyses are available at OSF (https://osf.io/sh4rb/, https://doi.org/10.17605/OSF.IO/SH4RB).Every social situation that people encounter in their daily lives comes with a set of unwritten rules about what behavior is considered appropriate or inappropriate. These everyday norms can vary across societies: some societies may have more permissive norms in general or for certain behaviors, or for certain behaviors in specific situations. In a preregistered survey of 25,422 participants across 90 societies, we map societal differences in 150 everyday norms and show that they can be explained by how societies prioritize individualizing moral foundations such as care and liberty versus binding moral foundations such as purity. Specifically, societies with more individualistic morality tend to have more permissive norms in general (greater liberty) and especially for behaviors deemed vulgar (less purity), but they exhibit less permissive norms for behaviors perceived to have negative consequences in specific situations (greater care). By comparing our data with available data collected twenty years ago, we find a global pattern of change toward more permissive norms overall but less permissive norms for the most vulgar and inconsiderate behaviors. This study explains how social norms vary across behaviors, situations, societies, and time.Funders that supported this research include the Knut and Alice Wallenberg Foundation (grant no. 2022.0191; Pontus Strimling), the Higher School of Economics Basic Research Program (Ekaterina Nastina and Natalia Soboleva), NextGenerationEU (contract no. BG-RRP-2.004-0007-С01; Kristina Stoyanova), the John Templeton Foundation (grant no. 62631; Robert M. Ross), the Australian Research Council (grant no. DP180102384; Robert M. Ross), the Youth Innovation Promotion Association, Chinese Academy of Sciences (grant no. 2023095; Junhui Wu), Open University of Israel (grant no. 48766; Ravit Nussinson), JSPS KAKENHI (grant no. JP21K02983; Toko Kiyonari); Narodowe Centrum Nauki (grant no. 2019/35/B/HS6/01421; Katarzyna Growiec), National Research and Development Fund (grant no. NKFIH-OTKA-K 135963; Marta Fulop), Australian National University (Samantha K. Stanley), the Swedish Research Council (grant no. 2023-01306; Giulia Andrighetto), Shota Rustaveli National Science Foundation (grant no. FR-22-15319; Vladimer Gamsakhurdia), The Science Fund of the Republic of Serbia (grant no. 7744418; Bojana M. Dinić), CIS—Centro de Investigação e Intervenção Social (CIS-ISCTE) through funds allocated by the Portuguese Foundation for Science and Technology (FCT) (grant no. UIDB/03125/2020, https://doi.org/10.54499/UIDB/03125/2020: Ricardo B. Rodrigues), Czech Science Foundation (grant no. GA23-06170S; Sylvie Graf and Martina Hřebíčková), the Ministry of Science, Technological Development and Innovations of the Republic of Serbia (contract no. 451-03-66/2024-03; Ivana Pedović), Linköping University (Maria Luisa Mendes Teixeira). Open access funding provided by Mälardalen University
