Fracionamento físico da matéria orgânica nas classes de agregado do solo sob sistemas agroflorestais de cacau no Sul da Bahia.

O presente estudo teve o objetivo de avaliar a distribuição do carbono e nitrogênio das frações da matéria orgânica nas classes de agregados de solos sob sistemas agroflorestais de cacau. Este estudo foi realizado em agrossistemas de cacau: cacauca-bruca; cacau com sombreamento definitivo de eritrina e floresta natural

Levantamento dos solos e uso atual do campo experimental de Terra Alta, Pará.

bitstream/item/63211/1/Oriental-Doc45.pdfAnexo mapas: Mapa de uso atual do Campo Experimental de Terra Alta - PA; Mapa de solos do Campo Experimental de Terra alta - PA

Development of bacterial cellulose wound dressings with controlled delivery of vitamin D3

Book of Abstracts of CEB Annual Meeting 2017[Excerpt] Wounds, in particular traumatic (e.g. burns) and chronic ones, are a major cause of morbidity and impaired life quality. They often result in long hospitalization stays, taking up substantial health resources in developed countries. This proposal aims at developing a safe, easy-to-use and nonexpensive approach to efficiently address this problem, by attaining faster and proper wound healing. Recent studies showed that an antimicrobial peptide (AMP), LLKKK18, released from conjugates with dextrin embedded in a Carbopol hydrogel significantly improved burn wound healing. In addition to antimicrobial activity, this peptide stimulates vascularization, thus supporting a faster healing and tissue regeneration[1]. As such, one can hypothesize that a hydrogel comprising drugs that stimulate the expression of LL37 will improve wound healing while keeping the wound area infection-free. This work comprised the approach towards the development of a novel bacterial nanocellulose (BNC) dressing. BNC, already used clinically for the treatment of burn wounds due to the unique properties like high water holding capacity, high crystallinity, ultrafine fiber network, high resistance, high moldability and biocompatibility[2]. In this work BNC will be used as drug carriers for the controlled release of drugs, namely of vitamin D3, an inducer of an endogenous expression of AMP LL37, known for accelerating the wound healing process, and as a protective barrier against exogenous agents (dust, microorganism) that can impair wound healing. [...]info:eu-repo/semantics/publishedVersio

Proposal for a collaborative LCA data management methodological aproach for creating "nodes" in the brazilian national inventory database (SICV) Brasil.

Global Guidance proposes mechanisms for LCA studies and data management for improving interoperability, data exchange, accessibility and credibility of LCA databases. The PBACV (CONMETRO, 2010) has among its objectives to implement in Brazil a system capable of organizing, storing and disseminating information of LCIs. The Brazilian government responded to this demand through IBICT, which developed the SICV Brazil. For a LCI database to succeed, it is necessary to have primary data provided by the productive sector. The availability of data contributes to the growth of the country while benefiting the primary data providers, as society is increasingly attentive to the transparency and environmental awareness of companies. The management of LCA data is not a concern of national LCI databases alone. Other institutions also need to manage their LCA data independently of proprietary software, ensuring autonomy and sustainability for their operations. Keeping data on someone?s own infrastructure favors autonomy, but multiplies infrastructure investment and impairs interoperability. This research proposes a procedure for shared management of LCA data through the creation nodes, an instance of SICV Brazil for storing LCI data from private and public institutions. This procedure for shared management promoted the Brazilian National Inventory Database (SICV Brazil) and offered advanced information resources to institutions, such as Embrapa, without additional infrastructure and facilitating interoperability with other institutions. Authors believe that the creation of other instances of the SICV could contribute to the advance of LCA in Brazil

Desempenho de híbridos de milho no Piauí e Maranhão: safra 2004-2005.

Na safra 2004/2005, 35 híbridos de milho foram submetidos a nove ambientes do Meio-Norte brasileiro, visando conhecer a adaptabilidade e a estabilidade para fins de recomendação. Utilizou-se o delineamento experimental em blocos ao acaso com três repetições. Constataram-se, na análise de variância conjunta, diferenças entre os híbridos e os ambientes e um comportamento inconsistente desses ante as variações ambientais, no tocante aos caracteres alturas de planta e de espigas, estande de colheita, espigas colhidas e rendimento de grãos. Os municípios de Teresina e Baixa Grande do Ribeiro,PI, mostraram-se mais propícios ao cultivo do milho. Os híbridos que apresentaram rendimentos médios de grãos acima da média geral (5.230 kg ha-1), expressaram melhor adaptação. Os híbridos 2 B 710 e Strike, por serem exigentes nas condições desfavoráveis e responderem à melhoria ambiental, destacaram-se para os ambientes favoráveis. Os híbridos que evidenciam adaptabilidade ampla, a exemplo dos 2 B 619, Pioneer 30 F 70, Pioneer 30 F 44, DAS 8420, DAS 8480, dentre outros, consubstanciam-se em alternativas importantes para a agricultura regional.bitstream/CPAMN-2009-09/21228/1/BOLP62.pd