Sustainability of high-density olive orchards: Hints for irrigation management and agroecological approaches

The production of olive oil in Portugal and other countries of the Mediterranean region has greatly increased in recent years. Intensification efforts have focused on the growth of the planted area, but also on the increase of the orchards density and the implementation of irrigation systems. Concerns about possible negative impacts of modern olive orchard production have arisen in the last years, questioning the trade-offs between the production benefits and the environmental costs. Therefore, it is of great importance to review the research progress made regarding agronomic options that preserve ecosystem services in high-density irrigated olive orchards. In this literature review, a keywords-based search of academic databases was performed using, as primary keywords, irrigated olive orchards, high density/intensive/hedgerow olive orchards/groves, irrigation strategies, and soil management. Aside from 42 general databases, disseminated research, and concept-framing publications, 112 specific studies were retrieved. The olive orchards were classified as either traditional (TD) (50–200 trees ha−1), medium-density (MD) (201–400 trees ha−1), high-density (HD) (401–1500 trees ha−1), or super-high-density (SHD) orchards (1501–2500 trees ha−1). For olive crops, the crop coefficient (Kc) ranges ranges from 0.65 to 0.70, and can fall as low as 0.45 in the summer without a significant decrease in oil productivity. Several studies have reported that intermediate irrigation levels linked with the adoption of deficit irrigation strategies, like regulated deficit irrigation (RDI) or partial rootzone drying (PRD), can be effective options. With irrigation, it is possible to implement agroecosystems with cover crops, non-tillage, and recycling of pruning residues. These practices reduce the soil erosion and nutrient leaching and improve the soil organic carbon by 2 to 3 t C ha−1 year−1. In this situation, in general, the biodiversity of plants and animals also increases. We expect that this work will provide a reference for research works and resource planning focused on the improvement of the productive and environmental performance of dense irrigated olive orchards, thereby contributing to the overall enhancement of the sustainability of these expanding agroecosystems

Combinatorial Identities Associated with a Multidimensional Polynomial Sequence

In this paper we combine the knowledge of different structures of a special Appell multidimensional polynomial sequence with the problem of establishing combinatorial identities. The elements of this special polynomial sequence have values in a Clifford algebra, are homogeneous hypercomplex differentiable functions of different degrees and their coefficients properties can be used to stress interesting matrix and combinatorial relations

Nursing perspective on assistance quality in a childhood center

O estatuto profissional dos enfermeiros integra no seu domínio a autonomia de atuação perante processos de autorreflexão, diante do exponencial progresso e desenvolvimento do conhecimento em enfermagem. A qualidade tornou-se tema crescente de interesse nas organizações de saúde, colocando a premissa aos enfermeiros de prestarem cuidados de enfermagem de excelência. A cultura da melhoria contínua da qualidade determina que os enfermeiros analisem e reflitam nas suas ações de maneira a implementarem estratégias de monitorização, avaliação e mudanças dos cuidados. Os enfermeiros gestores atuam como um vetor fundamental entre as necessidades dos clientes, dos enfermeiros e da organização. Nesse sentido a finalidade deste estudo baseia-se em conhecer a perceção dos enfermeiros sobre a qualidade que garante a assistência num Centro Materno Infantil. Foram delineados como objetivos: analisar a opinião dos enfermeiros sobre as condições globais do serviço de forma a garantirem a qualidade assistencial; Analisar a relação entre as características sociodemográficas e a perceção dos enfermeiros relativamente com os padrões de qualidade assistencial; Analisar a relação entre as características profissionais e a perceção dos enfermeiros relativamente com padrões de qualidade assistencial; Descrever as atividades de maior representação no Centro Materno Infantil. O estudo de carácter quantitativo, exploratório e descritivo foi realizado num Centro Materno Infantil de Portugal Continental, onde participaram 112 enfermeiros, de uma amostra de conveniência. Como instrumento de colheita de dados foi utilizado um questionário de autopreenchimento. Os resultados evidenciaram que os enfermeiros se preocupam com a qualidade do seu serviço e mostram que denotam preocupação por parte do enfermeiro gestor com a qualidade assistencial. Ainda que percecionem níveis positivos em relação às condições do serviço, apontam uma grande fragilidade a nível de recursos humanos. Através da escala de perceção de atividades de enfermagem que contribuem para a qualidade dos cuidados verificou-se que os enfermeiros executam maioritariamente “Sempre” e “Às vezes” as itens inerentes às categorias dos padrões de qualidade emanados pela Ordem dos Enfermeiros: satisfação do cliente; promoção da saúde; prevenção de complicações, bem-estar e autocuidado; readaptação funcional; organização dos cuidados de enfermagem. A satisfação do cliente surgiu como a categoria mais percecionada como executada pelos enfermeiros, seguido da Prevenção de Complicações e do Bem-Estar e Autocuidado

Hints for Irrigation Management and Agroecological Approaches

Publisher Copyright: © 2023 by the authors.The production of olive oil in Portugal and other countries of the Mediterranean region has greatly increased in recent years. Intensification efforts have focused on the growth of the planted area, but also on the increase of the orchards density and the implementation of irrigation systems. Concerns about possible negative impacts of modern olive orchard production have arisen in the last years, questioning the trade-offs between the production benefits and the environmental costs. Therefore, it is of great importance to review the research progress made regarding agronomic options that preserve ecosystem services in high-density irrigated olive orchards. In this literature review, a keywords-based search of academic databases was performed using, as primary keywords, irrigated olive orchards, high density/intensive/hedgerow olive orchards/groves, irrigation strategies, and soil management. Aside from 42 general databases, disseminated research, and concept-framing publications, 112 specific studies were retrieved. The olive orchards were classified as either traditional (TD) (50–200 trees ha−1), medium-density (MD) (201–400 trees ha−1), high-density (HD) (401–1500 trees ha−1), or super-high-density (SHD) orchards (1501–2500 trees ha−1). For olive crops, the crop coefficient (Kc) ranges ranges from 0.65 to 0.70, and can fall as low as 0.45 in the summer without a significant decrease in oil productivity. Several studies have reported that intermediate irrigation levels linked with the adoption of deficit irrigation strategies, like regulated deficit irrigation (RDI) or partial rootzone drying (PRD), can be effective options. With irrigation, it is possible to implement agroecosystems with cover crops, non-tillage, and recycling of pruning residues. These practices reduce the soil erosion and nutrient leaching and improve the soil organic carbon by 2 to 3 t C ha−1 year−1. In this situation, in general, the biodiversity of plants and animals also increases. We expect that this work will provide a reference for research works and resource planning focused on the improvement of the productive and environmental performance of dense irrigated olive orchards, thereby contributing to the overall enhancement of the sustainability of these expanding agroecosystems.publishersversionpublishe

Um plano de comunicação de Marketing nos Serviços de Documentação e Informaçãoda FEUP: Desenvolvimento Operacional de uma estratégia

Tese de mestrado. Ciência da Informação. Faculdade de Engenharia. Universidade do Porto. 201

Proposta curricular para a educação básica da rede estadual de ensino de Santa Catarina: dos textos aos contextos

"Série Anais dos XII Colóquio sobre Questões Curriculares, VIII Colóquio Luso-Brasileiro de Currículo e II Colóquio LusoAfro-Brasileiro de Questões Curriculares, vol. 1"A Proposta Curricular de Santa Catarina há mais de vinte anos é considerada oficialmente como documento norteador da prática pedagógica das escolas públicas da rede estadual. Desde sua primeira versão, o objetivo central da PCSC é constituir-se como um documento referencial, teórico e metodológico para a ação educativa catarinense, alicerçado na matriz teórico-filosófica do materialismo-histórico e dialético e na matriz epistemológica histórico-cultural. Tal proposta é um conjunto de orientações curriculares que objetivam a melhoria da qualidade do ensino da rede pública estadual na perspectiva de um modelo educativo que direcione a educação no sentido contrário à exclusão social. Esse artigo objetiva investigar o contexto histórico em que a PCSC foi elaborada para compreender os elementos condicionantes de sua formulação e apropriação.Um estudo como este implica investigar, inicialmente, os diferentes...CIEC - Centro de Investigação em Estudos da Criança, IE, UMinho (UI 317 da FCT), PortugalEste trabalho foi financiado por Fundos Nacionais através da FCT (Fundação para a Ciência e a Tecnologia) e co-financiado pelo Fundo Europeu de Desenvolvimento Regional (FEDER) através do COMPETE 2020 – Programa Operacional Competitividade e Internacionalização (POCI) no âmbito do CIEC (Centro de Investigação em Estudos da Criança da Universidade do Minho) com a referência POCI-01-0145-FEDER-007562info:eu-repo/semantics/publishedVersio

Non-symmetric number triangles arising from hypercomplex function theory in R^(n+1)

The paper is focused on intrinsic properties of a one-parameter family of non-symmetric number triangles T(n),n≥2, which arises in the construction of hyperholomorphic Appell polynomials.UA -Universidade de Aveiro(UIDB/00013/2020

A Sturm-Liouville equation on the crossroads of continuous and discrete hypercomplex analysis

The paper studies discrete structural properties of polynomials that play an important role in the theory of spherical harmonics in any dimensions. These polynomials have their origin in the research on problems of harmonic analysis by means of generalized holomorphic (monogenic) functions of hypercomplex analysis. The Sturm-Liouville equation that occurs in this context supplements the knowledge about generalized Vietoris number sequences Vn, first encountered as a special sequence (corresponding to n=2) by Vietoris in connection with positivity of trigonometric sums. Using methods of the calculus of holonomic differential equations, we obtain a general recurrence relation for Vn, and we derive an exponential generating function of Vn expressed by Kummer's confluent hypergeometric function.This work was supported by Portuguese funds through the CMAT—Research Centre of Mathematics of University of Minho—and through the CIDMA-Center of Research and Development in Mathematics and Applications (University of Aveiro) and the Portuguese Foundation for Science and Technology (“FCT - Fundação para a Ciência e Tecnologia”), within projects UIDB/00013/2020, UIDP/00013/2020, UIDB/04106/2020 , and UIDP/04106/2020

Intrinsic properties of a non-symmetric number triangle

Several authors are currently working on generalized Appell polynomials and their applications in the framework of hypercomplex function theory in Rn+1. A few years ago, two of the authors of this paper introduced a prototype of these generalized Appell polynomials, which heavily draws on a one-parameter family of non-symmetric number triangles T (n), n ≥ 2. In this paper, we prove several new and interesting properties of finite and infinite sums constructed from entries of T (n), similar to the ordinary Pascal triangle, which is not a part of that family. In particular, we obtain a recurrence relation for a family of finite sums, analogous to the ordinary Fibonacci sequence, and derive its corresponding generating function.UA - Universidade de Aveiro(UIDB/00013/2020)This work was supported by Portuguese funds through the CMAT - Research Centre of Mathematics of University of Minho - and through the CIDMA - Center of Research and De velopment in Mathematics and Applications (University of Aveiro) and the Portuguese Foun dation for Science and Technology (“FCT - Funda¸c˜ao para a Ciˆencia e Tecnologia”), within projects UIDB/00013/2020, UIDP/00013/2020, UIDB/04106/2020 and UIDP/04106/2020