Una experiencia didáctica en arquitectura bioclimática y el diseño sustentable

Futuros Alternativos para Tepotzotlan es un trabajo académico interdisciplinario e interinstitucional entre la Universidad de Harvard y la Universidad Autónoma Metropolitana. Ambas universidades tienen una amplia trayectoria de investigación, habiendo decidido orientar este estudio sobre la compleja problemática de la sustentabilidad de los centros urbanos en México, con particular énfasis en sus anillos de crecimiento. Para esta investigación se ha llevado a cabo un trabajo multidisciplinario que involucra a mas de cuarenta participantes de licenciatura y posgrado.. El propósito fundamental de este proyecto es demostrar que existen posibilidades de sustentabilidad dentro de los límites políticos municipales de Tepotzotlán mediante una adecuada planificación que hace énfasis en el agua, la energía y los desechos sólidos, los sistemas de transporte y los elementos paisajísticos para proporcionar a sus habitantes presentes y futuros una mejor calidad de vida.Alternative Futures for Tepotzotlán is an interdisciplinary academic research developed by Harvard University in Cambridge, Massachusetts. and the Universidad Autonoma Metropolitana (UAM) in Azcapotzalco, Mexico. Both universities -having a long research history- have decided to concentrate on the complex reality of sustainability for the large urban centers in México, with emphasis on the growth rings of mega cities. Development of the project has involved more than forty participants from both universities’ graduate and undergraduate programs in a multidisciplinary approach. The main goal of this project is to demonstrate that there are possibilities, within the social, political y municipal context of Tepotzotlán, for a sustainable development in the large urban centers of Latin America. Our emphasis has been on water, energy, solid waste, transportation systems and landscape assets to promote a better quality of life for the actual and future inhabitants of this territory.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Una experiencia didáctica en arquitectura bioclimática y el diseño sustentable

Futuros Alternativos para Tepotzotlan es un trabajo académico interdisciplinario e interinstitucional entre la Universidad de Harvard y la Universidad Autónoma Metropolitana. Ambas universidades tienen una amplia trayectoria de investigación, habiendo decidido orientar este estudio sobre la compleja problemática de la sustentabilidad de los centros urbanos en México, con particular énfasis en sus anillos de crecimiento. Para esta investigación se ha llevado a cabo un trabajo multidisciplinario que involucra a mas de cuarenta participantes de licenciatura y posgrado.. El propósito fundamental de este proyecto es demostrar que existen posibilidades de sustentabilidad dentro de los límites políticos municipales de Tepotzotlán mediante una adecuada planificación que hace énfasis en el agua, la energía y los desechos sólidos, los sistemas de transporte y los elementos paisajísticos para proporcionar a sus habitantes presentes y futuros una mejor calidad de vida.Alternative Futures for Tepotzotlán is an interdisciplinary academic research developed by Harvard University in Cambridge, Massachusetts. and the Universidad Autonoma Metropolitana (UAM) in Azcapotzalco, Mexico. Both universities -having a long research history- have decided to concentrate on the complex reality of sustainability for the large urban centers in México, with emphasis on the growth rings of mega cities. Development of the project has involved more than forty participants from both universities’ graduate and undergraduate programs in a multidisciplinary approach. The main goal of this project is to demonstrate that there are possibilities, within the social, political y municipal context of Tepotzotlán, for a sustainable development in the large urban centers of Latin America. Our emphasis has been on water, energy, solid waste, transportation systems and landscape assets to promote a better quality of life for the actual and future inhabitants of this territory.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Una experiencia didáctica en arquitectura bioclimática y el diseño sustentable

Futuros Alternativos para Tepotzotlan es un trabajo académico interdisciplinario e interinstitucional entre la Universidad de Harvard y la Universidad Autónoma Metropolitana. Ambas universidades tienen una amplia trayectoria de investigación, habiendo decidido orientar este estudio sobre la compleja problemática de la sustentabilidad de los centros urbanos en México, con particular énfasis en sus anillos de crecimiento. Para esta investigación se ha llevado a cabo un trabajo multidisciplinario que involucra a mas de cuarenta participantes de licenciatura y posgrado.. El propósito fundamental de este proyecto es demostrar que existen posibilidades de sustentabilidad dentro de los límites políticos municipales de Tepotzotlán mediante una adecuada planificación que hace énfasis en el agua, la energía y los desechos sólidos, los sistemas de transporte y los elementos paisajísticos para proporcionar a sus habitantes presentes y futuros una mejor calidad de vida.Alternative Futures for Tepotzotlán is an interdisciplinary academic research developed by Harvard University in Cambridge, Massachusetts. and the Universidad Autonoma Metropolitana (UAM) in Azcapotzalco, Mexico. Both universities -having a long research history- have decided to concentrate on the complex reality of sustainability for the large urban centers in México, with emphasis on the growth rings of mega cities. Development of the project has involved more than forty participants from both universities’ graduate and undergraduate programs in a multidisciplinary approach. The main goal of this project is to demonstrate that there are possibilities, within the social, political y municipal context of Tepotzotlán, for a sustainable development in the large urban centers of Latin America. Our emphasis has been on water, energy, solid waste, transportation systems and landscape assets to promote a better quality of life for the actual and future inhabitants of this territory.Asociación Argentina de Energías Renovables y Medio Ambiente (ASADES

Site-Specific Nutrient Management: Implementation guidance for policymakers and investors

Site-Specific Nutrient Management (SSNM) provides guidance relevant to the context of farmers' fields. SSNM maintains or enhances crop yields, while providing savings for farmers through more efficient fertilizer use. By minimizing fertilizer overuse, greenhouse gas emissions can be reduced, in some cases up to 50%. SSNM optimizes the supply of soil nutrients over space and time to match crop requirements. SSNM increases crop productivity and improves efficiency of fertilizer use. SSNM mitigates greenhouse gases from agriculture in areas with high nitrogen fertilizer use. Incentives for adoption of SSNM depend strongly on fertilizer prices

Identification of saline soils with multi-year remote sensing of crop yields

Soil salinity is an important constraint to agricultural sustainability, but accurate information on its variation across agricultural regions or its impact on regional crop productivity remains sparse. We evaluated the relationships between remotely sensed wheat yields and salinity in an irrigation district in the Colorado River Delta Region. The goals of this study were to (1) document the relative importance of salinity as a constraint to regional wheat production and (2) develop techniques to accurately identify saline fields. Estimates of wheat yield from six years of Landsat data agreed well with ground-based records on individual fields (R{sup 2} = 0.65). Salinity measurements on 122 randomly selected fields revealed that average 0-60 cm salinity levels > 4 dS m{sup -1} reduced wheat yields, but the relative scarcity of such fields resulted in less than 1% regional yield loss attributable to salinity. Moreover, low yield was not a reliable indicator of high salinity, because many other factors contributed to yield variability in individual years. However, temporal analysis of yield images showed a significant fraction of fields exhibited consistently low yields over the six year period. A subsequent survey of 60 additional fields, half of which were consistently low yielding, revealed that this targeted subset had significantly higher salinity at 30-60 cm depth than the control group (p = 0.02). These results suggest that high subsurface salinity is associated with consistently low yields in this region, and that multi-year yield maps derived from remote sensing therefore provide an opportunity to map salinity across agricultural regions

Effects of N fertilization on yield for low-input production in Spanish what landraces ( Triticum tugidum L. and Triticum monococcum L.)

A core subset of Spanish durum wheat landraces was evaluated at two nitrogen levels (80 and 220 kg/ha) to identify landrace genotypes adapted to low N production. Yield differences were statistically significant between N levels and among genotypes at both levels. Fiftyone per cent of the landraces yielded significantly more at low than at high N (low-N varieties) while 26% had a positive (high-N varieties) and 23% an indifferent (indifferent-N varieties) response to N fertilizer. No significant agromorphological differences were found among low and high-N varieties at low N level that conferred some advantage to low-N varieties. In contrast, high-N varieties possessed longer grain-filling period under high N level. Phenological characters showed an important influence on yield and on the performance of the varieties within each subgroup. The traits affecting grain yield most positively, mainly the low-N varieties, were long filling period and earliness. Five entries were selected for prebreeding to low N adaptation

Minimal invasive surgery in craniostenosis

En el presente trabajo se describe la experiencia en craneoestenosis con cirugía mínimamente invasiva, evaluando el diseño y eficacia de un nuevo craneotomo en cadáveres así como su aplicación clínica en un caso de sinostósis sagital con instrumentación endoscópica. Este procedimiento es sin duda un gran recurso en el tratamiento de las craneoestenosis brindando los beneficios de la cirugía mínimamente invasiva, eliminando la necesidad de grandes incisiones, disminuyendo el sangrado quirúrgico, reduciendo estancia hospitalaria y disminuyendo la morbilidad operatoria In this paper, we describe the experience with the use of endoscopic craniofacial procedures, evaluating the design and the efficacy of a new craniotome in cadavers and his clinical application in a case of sagittal synostosis for an endoscopic assisted cranioplasty. This procedure is a great option in the treatment of craniosynostosis, giving the benefits of minimal invasive surgery and eliminating the needing of big incisions, long hospital stay and reducing the postoperative morbidit

Framework for rapid country-level analysis of AFOLU mitigation options

Mitigation in the agricultural sector is critical to meeting the 2 ̊C target set by the Paris Agreement. Recent analysis indicates that land-based mitigation can potentially contribute about 30% of the reduction is needed to reach the 2030 target. However, action to reduce emissions from the agricultural sector has lagged behind other sectors. Action and investment in agriculture have been constrained by a lack of policy-relevant and science-based methods estimating GHG emissions and mitigation potential that contribute to decision making. In this paper, we present a framework for a rapid country-level scientific assessment of emissions and mitigation potential from the agricultural, forestry and other land-use (AFOLU) sector. The framework sets targets for AFOLU mitigation based on local agro- environmental conditions, mitigation options best fitted for those conditions and stakeholder input. It relies on the use of simple models or tools to estimate emissions at the farm gate using a mix of Tier 1, Tier 2 and simple Tier 3 methods under baseline, business-as-usual (BAU) and mitigation scenarios. The mitigation potential of low-emissions agriculture options is determined relative to a baseline or BAU scenario. The framework also enables examining the likely level of implementation of low-emission options. This includes assessing the cost and additional benefits of applying the identified low- emission options across different jurisdictions of interest. The feasibility of these options, assessment of institutional capacity for scaling and identification of barriers and risks of adoption to identify priorities are also determined. This information is used by stakeholders and experts to develop a road map for implementation. Rapid assessment of national mitigation potentials can help countries to assess their Nationally Determined Contributions’ (NDC) targets and prioritize mitigation options for achieving the targets and monitor progress towards their achievement. Spatially explicit information helps countries plan implementation at subnational levels