Average-Case Optimal Approximate Circular String Matching

Approximate string matching is the problem of finding all factors of a text t of length n that are at a distance at most k from a pattern x of length m. Approximate circular string matching is the problem of finding all factors of t that are at a distance at most k from x or from any of its rotations. In this article, we present a new algorithm for approximate circular string matching under the edit distance model with optimal average-case search time O(n(k + log m)/m). Optimal average-case search time can also be achieved by the algorithms for multiple approximate string matching (Fredriksson and Navarro, 2004) using x and its rotations as the set of multiple patterns. Here we reduce the preprocessing time and space requirements compared to that approach

Optical and Near Infrared Study of the Cepheus E outflow, a very low excitation object

We present images and spectra of the Cepheus E (Cep E) region at both optical and infrared wavelengths. Only the brightest region of the southern lobe of the Cep E outflow reveals optical emission, suggesting that the extinction close to the outflow source plays an important r\^ole in the observed difference between the optical and IR morphologies. Cep E is a unique object since it provides a link between the spectroscopic properties of the optical Herbig-Haro (HH) objects and those of deeply embedded outflows.Comment: Accepted Astron. J., 8 files: paper, tables plus 6 figure

Identificação, caracterização e inserção no mercado de produtos orgânicos na região da Barreira do Andirá.

A pesquisa objetivou caracterizar as principais cadeias de produtos orgânicos da agricultura familiar e sua inserção no mercado. Foi realizada na comunidade Barreira do Andirá, município de Barreirinha - AM e poderá vir a subsidiar propostas de desenvolvimento local sustentável. Como ferramenta de pesquisa utilizou-se o método estudo de caso. Identificando-se duas importantes cadeias produtivas: a da mandioca e a do guaraná e, a importância da organização social para alcançar o desenvolvimento rural com base na agroecologia

Levantamento da diversidade de vírus em batata-doce do banco ativo de germoplasma da Embrapa Hortaliças.

O presente trabalho teve o objetivo de ralizar um levantamento de vírus no Banco Ativo de Germoplasma de batata-doce da Embrapa Hortaliças

Levantamento da diversidade de vírus em batata-doce no campo experimental da Embrapa Hortaliças

O presente trabalho teve o objetivo de realizar um levantamento de vírus no Campo Experimental de Batata-doce para a análise que consistiu inicialmente na enxertia na planta indicadora Ipomoea stosa e posterior detecção viral pela técnica NCM-Elisa para dez virus que infectam a batata-doce: Sweet potato feathery mottle virus (SPMMV), Sweet potato virus G (SPVG), Sweet potato C-6.Resumo expandido

Fixação biológica do nitrogênio e colonização micorrízica em genótipos de caupi (Vigna unguiculata (L.) Walp.) cultivados em solo de tabuleiros costeiros.

Estudo conduzido para avaliar a variabilidade entre dez genótipos de caupi quanto a características relacionadas à fixação biológica do nitrogênio (FBN) e à colonizaçõa por fungos micorrízicos arbusculares (FMA).bitstream/CPATC-2009-09/20519/1/bp_35.pd

Padronização do preparo de amostras de feijão cozido para teste de dureza instrumental.

O objetivo deste trabalho foi verificar qual o melhor método de cocção de feijão, de forma que os grãos se tornassem cozidos e permitisse a distinção entre amostras recém-colhidas e envelhecidas (hard-to-cook)

A systematic review of natural products for skin applications: targeting inflammation, wound healing, and photo-aging

Background: Every day the skin is constantly exposed to several harmful factors that induce oxidative stress. When the cells are incapable to maintain the balance between antioxidant defenses and reactive oxygen species, the skin no longer can keep its integrity and homeostasis. Chronic inflammation, premature skin aging, tissue damage, and immunosuppression are possible consequences induced by sustained exposure to environmental and endogenous reactive oxygen species. Skin immune and non-immune cells together with the microbiome are essential to efficiently trigger skin immune responses to stress. For this reason, an ever-increasing demand for novel molecules capable of modulating immune functions in the skin has risen the level of their development, particularly in the field of natural product-derived molecules. Purpose: In this review, we explore different classes of molecules that showed evidence in modulate skin immune responses, as well as their target receptors and signaling pathways. Moreover, we describe the role of polyphenols, polysaccharides, fatty acids, peptides, and probiotics as possible treatments for skin conditions, including wound healing, infection, inflammation, allergies, and premature skin aging. Methods: Literature was searched, analyzed, and collected using databases, including PubMed, Science Direct, and Google Scholar. The search terms used included “Skin”, “wound healing”, “natural products”, “skin microbiome”, “immunomodulation”, “anti-inflammatory”, “antioxidant”, “infection”, “UV radiation”, “polyphenols”, “polysaccharides”, “fatty acids”, “plant oils”, “peptides”, “antimicrobial peptides”, “probiotics”, “atopic dermatitis”, “psoriasis”, “auto-immunity”, “dry skin”, “aging”, etc., and several combinations of these keywords. Results: Natural products offer different solutions as possible treatments for several skin conditions. Significant antioxidant and anti-inflammatory activities were reported, followed by the ability to modulate immune functions in the skin. Several membrane-bound immune receptors in the skin recognize diverse types of natural-derived molecules, promoting different immune responses that can improve skin conditions. Conclusion: Despite the increasing progress in drug discovery, several limiting factors need future clarification. Understanding the safety, biological activities, and precise mechanisms of action is a priority as well as the characterization of the active compounds responsible for that. This review provides directions for future studies in the development of new molecules with important pharmaceutical and cosmeceutical value.info:eu-repo/semantics/publishedVersio