scholarly journals Continuity, focus and impact: a commented historical perspective on Embrapa Vegetables' extended Capsicum breeding program

2016 ◽  
Vol 34 (2) ◽  
pp. 155-160 ◽  
Author(s):  
Francisco JB Reifschneider ◽  
Carlos A Lopes ◽  
Cláudia SC Ribeiro

ABSTRACT The article describes the origin, development and main results of Embrapa Vegetables' Capsicum breeding program, a continuous activity for more than three decades. The article points out and highlights how partnerships, both in Brazil and abroad, both with the public and the private sectors, were vital to the success of the program. The article also glosses over the development of the Capsicum germplasm bank and its importance to the breeding program, concluding with a set of faced challenges and lessons learned which might be of interest to other similar programs.

2021 ◽  
pp. 026732312110283
Author(s):  
Judith Simon ◽  
Gernot Rieder

Ever since the outbreak of the COVID-19 pandemic, questions of whom or what to trust have become paramount. This article examines the public debates surrounding the initial development of the German Corona-Warn-App in 2020 as a case study to analyse such questions at the intersection of trust and trustworthiness in technology development, design and oversight. Providing some insights into the nature and dynamics of trust and trustworthiness, we argue that (a) trust is only desirable and justified if placed well, that is, if directed at those being trustworthy; that (b) trust and trustworthiness come in degrees and have both epistemic and moral components; and that (c) such a normatively demanding understanding of trust excludes technologies as proper objects of trust and requires that trust is directed at socio-technical assemblages consisting of both humans and artefacts. We conclude with some lessons learned from our case study, highlighting the epistemic and moral demands for trustworthy technology development as well as for public debates about such technologies, which ultimately requires attributing epistemic and moral duties to all actors involved.


YMER Digital ◽  
2021 ◽  
Vol 20 (12) ◽  
pp. 446-455
Author(s):  
Eshetu Mathewos Juta ◽  

The term “urban mass transit” generally refers to scheduled intra-city service on a fixed route in shared vehicles. Public transportation is an important contributing factor to urban sustainability. Effective transportation networks that incorporate public transit livable by easing commute and transportation needs and increasing accessibility. To assess public transportation accessibility in metropolitan networks, two indices are used: the supply level of urban public transportation facilities resource and the public transportation-private automobile traveling time ratio. As the research in the Wolaita sodo town region and the assessment system, an evaluation technique for urban public transportation facility resource supply is developed based on accessibility. Accessibility is a representative indicator for evaluating the supply of bus system. Traditional studies have evaluated the accessibility from different aspects. Considering the interaction among land use, bus timetable arrangement and individual factors, a more holistic accessibility measurement is proposed to combine static and dynamic characteristics from multisource traffic data. The objective is to highlight the main lessons learned and identify knowledge gaps to guide the design and evaluation of future transport investments. Moreover, studies looking at ways to improve the operational efficiency of systems and those seeking to promote behavioral changes in transport users offer great potential to generate learning that is useful for the public and private actors involved.


BMC Genomics ◽  
2022 ◽  
Vol 23 (1) ◽  
Author(s):  
Sirlene Viana de Faria ◽  
Leandro Tonello Zuffo ◽  
Wemerson Mendonça Rezende ◽  
Diego Gonçalves Caixeta ◽  
Hélcio Duarte Pereira ◽  
...  

Abstract Background The characterization of genetic diversity and population differentiation for maize inbred lines from breeding programs is of great value in assisting breeders in maintaining and potentially increasing the rate of genetic gain. In our study, we characterized a set of 187 tropical maize inbred lines from the public breeding program of the Universidade Federal de Viçosa (UFV) in Brazil based on 18 agronomic traits and 3,083 single nucleotide polymorphisms (SNP) markers to evaluate whether this set of inbred lines represents a panel of tropical maize inbred lines for association mapping analysis and investigate the population structure and patterns of relationships among the inbred lines from UFV for better exploitation in our maize breeding program. Results Our results showed that there was large phenotypic and genotypic variation in the set of tropical maize inbred lines from the UFV maize breeding program. We also found high genetic diversity (GD = 0.34) and low pairwise kinship coefficients among the maize inbred lines (only approximately 4.00 % of the pairwise relative kinship was above 0.50) in the set of inbred lines. The LD decay distance over all ten chromosomes in the entire set of maize lines with r2 = 0.1 was 276,237 kb. Concerning the population structure, our results from the model-based STRUCTURE and principal component analysis methods distinguished the inbred lines into three subpopulations, with high consistency maintained between both results. Additionally, the clustering analysis based on phenotypic and molecular data grouped the inbred lines into 14 and 22 genetic divergence clusters, respectively. Conclusions Our results indicate that the set of tropical maize inbred lines from UFV maize breeding programs can comprise a panel of tropical maize inbred lines suitable for a genome-wide association study to dissect the variation of complex quantitative traits in maize, mainly in tropical environments. In addition, our results will be very useful for assisting us in the assignment of heterotic groups and the selection of the best parental combinations for new breeding crosses, mapping populations, mapping synthetic populations, guiding crosses that target highly heterotic and yielding hybrids, and predicting untested hybrids in the public breeding program UFV.


Author(s):  
Tommy Satriadi Nur Arifin

The purpose of this study is to discuss media convergence as the development of Information and Communication Technology (ICT). This study uses a historical perspective which is the first media age with the broadcast pattern and the second media age with interactivity patterns. Results of research Broadcast media that use radio frequency transmission can now be accessed through an Internet connection as streaming media. In conclusion, the public can access radio and television through an internet connection and reduce the need for these devices, using an internet connection when it is available for the network to access broadcasts. Keywords: Convergence, Broadcast Media, New Media, Streaming


2021 ◽  
Vol 6 ◽  
Author(s):  
Rebekah Fox ◽  
Joshua Frye

According to the School Nutrition Association, nearly 100,000 schools serve free or reduced school lunches and breakfasts daily to approximately 34. 34 million students nationwide. However, as COVID-19 forced many schools to close, students who depended on the public schools to meet the majority of their nutritional needs faced an even larger battle with food insecurity. Recognizing this unmet need, and that food insecurity was intertwined with other needs within the community, the Crystal Bridges Museum of American Art and its satellite contemporary art space the Momentary, partnered with the Northwest Arkansas Food Bank and over 30 additional partner organizations to pivot their existing outreach services. In this case study, we identify lessons learned by Crystal Bridges that might be useful for other organizations who seek to foster meaningful engagement with the public, especially in times of crisis. Specifically, we focus on three main lessons: 1) how the museum created a plan to learn through the pivot in order to capture their own lessons, 2) how the members of the organization experienced a sense of coming together (congregation) during the pivot, and 3) how the organization planned to improve both internal and external communication.


Author(s):  
Marco Bastos ◽  
Dan Mercea

In this article, we review our study of 13 493 bot-like Twitter accounts that tweeted during the UK European Union membership referendum debate and disappeared from the platform after the ballot. We discuss the methodological challenges and lessons learned from a study that emerged in a period of increasing weaponization of social media and mounting concerns about information warfare. We address the challenges and shortcomings involved in bot detection, the extent to which disinformation campaigns on social media are effective, valid metrics for user exposure, activation and engagement in the context of disinformation campaigns, unsupervised and supervised posting protocols, along with infrastructure and ethical issues associated with social sciences research based on large-scale social media data. We argue for improving researchers' access to data associated with contentious issues and suggest that social media platforms should offer public application programming interfaces to allow researchers access to content generated on their networks. We conclude with reflections on the relevance of this research agenda to public policy. This article is part of a discussion meeting issue ‘The growing ubiquity of algorithms in society: implications, impacts and innovations'.


2021 ◽  
Author(s):  
Michael Villafranca ◽  
Brittany Webster ◽  
Elizabeth Landau

<p>Communicating the value of science to policymakers has never been more importance, but how do you make a difference while adhering to new norms for physical distancing? Regardless of one’s level of technological aptitude, and no matter if time constraints exist, scientists can still effectively communicate the value of their science to policymakers through virtual means. The Public Affairs team from the American Geophysical Union will share lessons learned from several virtual advocacy events held in 2020 and will cover a few communications strategies for influencing policymakers through virtual science policy engagements—from virtual meetings with policymakers to social media to traditional media.</p>


2014 ◽  
Vol 116 (14) ◽  
pp. 383-410
Author(s):  
Deirdre M. Kelly

This chapter delineates three models of democracy, noting the role that alternative education plays within each model. Then, from the perspective of the participatory democracy model, I examine various initiatives to foster democracy in alternative learning contexts, drawing relevant examples from the literature to highlight critical issues, tensions, and dilemmas, and lessons learned. … the history of the public alternative schools movement is more than an account of the development of preference in public education, it is a story about competing ideas on purposes and goals of schooling; it is a story about democratizing public education. (Neumann, 2003, p. 2)


Author(s):  
Nergiz Ilhan ◽  
Md Mahbubur Rahim

E-procurement systems are widely discussed in the eBusiness literature in which it is claimed that businesses generally experience three types of benefits (e.g. operational, tactical, and strategic) from implementing these systems. However, limited studies have so far been reported in the e-government literature on the benefits e-procurement systems have provided for the Australian municipality context. This chapter thus reviews the existing literature and reports e-procurement benefits experience of a large Australian municipal council. The findings indicate that the council's experience is limited to the attainment of operational and tactical benefits, and no evidence has been found about gaining any strategic benefits. In addition, several factors are identified that influenced those benefits. The lessons learned from the experience of the council are discussed and contributions made to the e-procurement literature for the public government context are highlighted.


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