Stingless bee further improve apple pollination and production

The use of Africanised honeybee (Apis mellifera scutellata Lepeletier) hives to increase pollination success in apple orchards is a widespread practice. However, this study is the first to investigate the number of honeybee hives ha-1 required to increase the production of fruits and seeds as well as the potential contribution of the stingless bee Mandaçaia (Melipona quadrifasciata anthidioides Lepeletier). We performed tests in a 43-ha apple orchard located in the municipality of Ibicoara (13º24’50.7’’S and 41º17’7.4’’W) in Chapada Diamantina, State of Bahia, Brazil. In 2011, fruits from the Eva variety set six seeds on average, and neither a greater number of hives (from 7 to 11 hives ha-1) nor a greater number of pollen collectors at the honeybee hives displayed general effects on the seed number. Without wild pollinators, seven Africanised honeybee hives ha-1 with pollen collectors is currently the best option for apple producers because no further increase in the seed number was observed with higher hive densities. In 2012, supplementation with both stingless bees (12 hives ha-1) and Africanised honeybees (7 hives ha-1) provided higher seed and fruit production than supplementation with honeybees (7 hives ha-1) alone. Therefore, the stingless bee can improve the performance of honeybee as a pollinator of apple flowers, since the presence of both of these bees results in increases in apple fruit and seed number.Fil: Blandina Felipe, Viana. Universidade Federal da Bahia; BrasilFil: da Encarnação Coutinho, Jeferson Gabriel. Universidade Federal da Bahia; BrasilFil: Garibaldi, Lucas Alejandro. Universidad Nacional de Rio Negro. Sede Andina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bragança Gastagnino, Guido Laercio. Universidade Federal da Bahia; BrasilFil: Gramacho, Katia Peres. Katia Peres; BrasilFil: Oliveira da Silva, Fabiana. Universidade Federal da Bahia; Brasi

Group Investigation Learning in Developing 21st Century Skills of Elementary School Students

The 21st century is a century where all information and technology is growing rapidly as if without a barrier that requires humans to have the skills to be able to compete in this century. This skill does not just appear in humans but through a process of habituation. This process can be obtained through educational institutions. The right age to develop 21st-century skills is to start when children enter elementary school age. Educational institutions through the teaching process by teachers will help students to develop 21st-century skills such as critical thinking skills, problem-solving skills, collaboration skills, communication skills, and creativity. These skills can be developed through an innovative, creative, and involving learning process. students are actively involved in the learning process. One of the models or methods that can be used by teachers is group investigation learning. Group investigation is cooperative learning that puts forward cooperation in teams to carry out investigations in completing the assigned tasks. This study collects previous studies on the application of group investigation learning in developing 21st-century skills in elementary school students. This study uses search data from Google Scholar through an explanation of qualitative metasummary forms. After carrying out the selection, 10 journal articles were selected to be studied in this study. The results of the analysis show that group investigation learning has a significant influence in developing critical thinking skills, problem-solving skills, cooperative skills, communication skills, and students' creativity

A Sustainable Assessment of the Codes and Plans for South Shore Central of Austin’s Lady Bird Lake

This project report provides valuable information surrounding the socioeconomic climate of Austin. Demographic and economic descriptions are coupled with plans for environmentally conscious future city development.The City of Austin has recognized that Lady Bird Lake (formerly named Town Lake) is a precious recreational resource in the heart of the urban core, which could be quickly overwhelmed if development along its shores is not carefully planned and regulated to provide a balance between accommodating growth in the urban core and preserving the character of the lakefront. The adoption of the 1985 Town Lake Corridor Study established foundational policies which were codified with the 1986 Waterfront Overlay Combining District (WOCD) ordinance. The ordinance established fifteen sub-districts (now sixteen sub-districts) within the overlay in order to calibrate the code to various locations along the 5.4 mile -long town lake corridor. The overall purpose of the ordinance was established “. . . to provide a more harmonious interaction and transition between urban development and the parkland and shoreline . . .” In 2007 the City Council appointed a Waterfront Overlay Taskforce to review the adequacy of the current waterfront ordinance in light of changes that had been made to the original ordinance over the years and to increasing development pressure along the shoreline. The Waterfront Task Force Report, 2008, made several recommendations, including the re-establishment of a Waterfront Planning Advisory Board (WPAB) with responsibilities that include recommending potential changes to the Waterfront Overlay Combining District ordinance, with particular instructions to develop bonus provisions that create clear, predictable methods for increasing development entitlements in exchange for clear, predictable community benefits, and to develop improved design standards. The WPAB has conducted this work since its appointment two years ago, but has had to carry out this task with limited support resources and without the benefit of consultant assistance The SDAT will provide an outside, professional review and assessment of the WPAB’s work to date and assist with recommendations for moving forward. Additionally, the SDAT process will help convene local resources and engage stakeholders to inform and assist with the work. In order to sharply focus the review and assessment process, the SDAT study will concentrate on one of the sub-districts of the Waterfront Overlay – South Shore Central – which is arguably the area along the waterfront most likely to face potential redevelopment prospects, and the adjacent sub-districts to the west and east which, respectively, introduce a major park land (Auditorium Shores) and an area with commercial transitioning to residential uses (Travis Heights). The South Shore Central sub-district is also adjacent to established neighborhoods. This area concentrates the issues of how to promote urban excellence while maintaining, enhancing, and connecting to parkland and neighborhoods.Waller Creek Working Grou

The signature of the whole. Radical interconnectedness and its implications for global and environmental education

The author presents a holistic concept of Global Learning, concerning different scientific disciplines, spiritual suggestions and practical consequences. He interprets the global environmental crisis especially as a crisis of worldview, stamped by mechanistic belief. (DIPF/Orig.)Der Autor präsentiert ein holistisches Konzept Globalen Lernens in Auseinandersetzung mit verschiedenen Wissenschaftsdisziplinen, spirituellen Anregungen und praktischen Konsequenzen. Die globale Umweltkrise interpretiert er dabei v. a. als eine Krise der Betrachtung von Welt, die von mechanistischem Denken geprägt sei. (DIPF/Orig.