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Understanding Big Data for Industrial Innovation and Design:The Missing Information Systems Perspective

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Journal of Data and Information Science 2017年第4期2卷 1-6页

作者： Miguel Baptista nunes School of Information Management Sun Yat-sen UniversityGuangzhou 510006China

This paper identifies a need to complement the current rich technical and mathematical research agenda on big data with a more information systems and information science strand, which focuses on the business value of big data. An agenda of research for information systems would explore motives for using big data in real organizational contexts, and consider proposed benefits, such as increased effectiveness and efficiency, production of high-quality products/services, creation of added business value, and stimulation of innovation and design. Impacts of such research on the academic community, the industrial and business world, and policy-makers are discussed.

关键词： Big data Business value Information systems Information science

Tunnel geometry of the subterranean termite Reticulitermes grassei （Isoptera： Rhinotermitidae）in response to sand bulk density and the presence of food

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Insect Science 2007年第6期14卷 511-518页

作者： TANIA NOBRE LINA nunes DAVID E. BIGNELL Laboratorio Nacional de Engenharia Civil Nucleo de Estruturas de Madeira Lisboa Portugal Queen Mary University of London School of Biological and Chemical Sciences London UK Institute of Tropical Biology and Conservation Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysia

The cryptic habits of subterranean termites restricts detailed analysis of their foraging patterns in situ, but the process is evidently dominated by tunnel constructions connecting the nest with woody resources discovered within the territory of each colony. In this study, tunnel formation and orientation were studied experimentally in the termite Reticulitermes grassei （Clement）, using 2-dimensional laboratory foraging arenas con- taining fine sand as the substratum. The building of exploratory tunnels over a 10-day period and the geometry of the resulting network are described. Fractal analysis showed that tunnel geometry had a fractal dimension, regardless of the total length tunnelled whether foragers encountered the food source or not. The bulk density of the sand in the arenas affected the distances tunnelled, with higher density reducing construction, but did not affect tunnel geometry. Tunnels were not discernibly orientated with respect to the positioning of the food source, even in a situation where termites had failed to find the food source at a distance of less than 50 mm, suggesting that volatiles from wood are not attractants.

关键词： foraging gallery fractal analysis Reticulitermes grassei search pattern,subterranean termites tunnel geometry

Familial aggregation in inflammatory bowel disease:Is it genes or environment?

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World Journal of Gastroenterology 2011年第22期17卷 2715-2722页

作者： Tiago nunes Gionata Fiorino Silvio Danese Miquel Sans Department of Gastroenterology Hospital Clinic i Provincial/IDIBAPS CIBER EHD 08036 Barcelona Spain Division of Gastroenterology IRCCS Istituto Clinico Humanitas Rozzano Milan 20089 Italy

Inflammatory bowel disease (IBD) develops in genetically susceptible individuals due to the influence of environmental factors, leading to an abnormal recognition of microbiota antigens by the innate immune system which triggers an exaggerated immune response and subsequent bowel tissue damage. IBD has been more frequently found in families, an observation that could be due to either genetic, environmental or both types of factors present in these families. In addition to expanding our knowledge on IBD pathogenesis, defining the specific contribution to familial IBD of each one of these factors might have also clinical usefulness. We review the available evidence on familial IBD pathogenesis.

关键词： Inflammatory bowel disease Familial aggregation Familial clustering Environmental factors Genetics Genome wide association studies

Metabolic and Signaling Aspects Underpinning the Regulation of Plant Carbon Nitrogen Interactions

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Molecular Plant 2010年第6期3卷 973-996页

作者： Adriano nunes-Nesi Alisdair R. Fernie Mark Stitt Max Planck Institute for Molecular Plant Physiology Am M~hlenberg 1 14476 Potsdam-Golm Germany

In addition to light and water, CO2 and mineral elements are required for plant growth and development. Among these factors, nitrogen is critical, since it is needed to synthesize amino acids, which are the building elements of protein, nucleotides, chlorophyll, and numerous other metabolites and cellular components. Therefore, nitrogen is required by plants in higher quantities and this investment in nitrogen supports the use of CO2, water, and inorganic nitrogen to produce sugars, organic acids, and amino acids, the basic building blocks of biomass accumulation. This system is maintained by complex metabolic machinery, which is regulated at different levels according to environmental factors such as light, CO2, and nutrient availability. Plants integrate these signals via a signaling network, which involves metabolites as well as nutrient-sensing proteins. Due to its importance, much research effort has been expended to understand how carbon and nitrogen metabolism are integrated and regulated according to the rates of photosynthesis, photorespiration, and respiration. Thus, in this article, we both discuss recent advances in carbon/nitrogen metabolisms as well as sensing and signaling systems in illuminated leaves of C3-plants and provide a perspective of the type of experiments that are now required in order to take our understanding to a higher level.

关键词： Primary metabolism CN balance signaling.

Structural and optical properties of pillared Eu^(3+)-containing layered double hydroxides intercalated by 2-to 12-carbon aliphatic dicarboxylates

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Journal of Rare Earths 2022年第2期40卷 260-267,I0003页

作者： Alexandre Candido Teixeira Ivan Guide nunes Silva Alysson Ferreira Morais Danilo Mustafa Physics Institute.University of Sao Paulo 05508-090Sao PauloSPBrazil

While the versatile composition of layered double hydroxides(LDHs)allows the introduction of almost any polyvalent cation in their structure,the exchangeable negatively charged ions intercalated between the plates increase their vast range of *** we report on the preparation and optical properties of pillared Eu^(3+)-substituted ZnAl LDHs intercalated by aliphatic dicarboxylates:-OOC-(CH_(2))_(n-2)-COO-.The basal distance in these materials is dependent on the size and packing of the intercalated *** varying the number(n)of carbon atoms in the aliphatic chain from 2 to 12,the interlayer gallery of these ZnAlEu LDHs is considerably expanded from 0.9 to 2.1 *** the interlayer gallery,the aliphatic dicarboxylates form a monolayer,with the aliphatic chain inclined by an angleα≈63°with the hydroxide *** carbon atom in the COO-group is 0.43 nm far from the metal plane,showing that these carboxylates are not grafted in the brucite-like *** LDHs are thermally stable up to around 150℃,after which dehydroxylation of the hydroxide layers is *** Judd-Ofelt intensity parameters were obtained and compared to the Eu^(3+)-containing complexes with the same ligand series indicating a more symmetrical and less polarizable chemical environment around the rare earth ion.

关键词： Europium Layered double hydroxides Carboxylate ligands Luminescence Rare earths

A Subspace Version of the Powell–Yuan Trust-Region Algorithm for Equality Constrained Optimization

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Journal of the Operations Research Society of China 2013年第4期1卷 425-451页

作者： Geovani nunes Grapiglia Jinyun Yuan Ya-xiang Yuan Departamento de Matemática Universidade Federal do ParanáCentro PolitécnicoCx.postal 19.08181531-980CuritibaParanáBrazil The Capes Foundation Ministry of Education of BrazilCx.postal 25070.040-020BrasíliaDistrito FederalBrazil State Key Laboratory of Scientific/Engineering Computing Institute of Computational Mathematics and Scientific/Engineering ComputingAcademy of Mathematics and Systems ScienceChinese Academy of SciencesZhongguancundonglu 55Beijing 100190P.R.China

This paper studied subspace properties of the Celis–Dennis–Tapia(CDT)subproblem that arises in some trust-region algorithms for equality constrained opti*** analysis is an extension of that presented by Wang and Yuan(***.104:241–269,2006)for the standard trust-region *** suitable conditions,it is shown that the trial step obtained from the CDT subproblem is in the subspace spanned by all the gradient vectors of the objective function and of the constraints computed until the current *** on this observation,a subspace version of the Powell–Yuan trust-region algorithm is proposed for equality constrained optimization problems where the number of constraints is much lower than the number of variables. The convergence analysis is given and numerical results arealso reported.

关键词： Constrained optimization Trust-region methods Subspace methods

The influence of disturbance on driving carbon stocks and tree dynamics of riparian forests in Cerrado

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Journal of Plant Ecology 2018年第3期11卷 401-410页

作者： Matheus Henrique nunes Marcela de Castro nunes Santos Terra Izabela Regina Cardoso de Oliveira Eduardo van den Berg Department of Plant Sciences University of CambridgeDowning StreetCambridge CB23EAUK Department of Forest Sciences Federal University of Lavras1001Doutor Sylvio Menicucci AvenueLavras 37200-000Brazil Department of Exact Science Federal University of Lavras1001Doutor Sylvio Menicucci AvenueLavras 37200-000Brazil Department of Biology Federal University of Lavras1001Doutor Sylvio Menicucci AvenueLavras 37200-000Brazil

Aims Riparian forests in the Brazilian Cerrado,also known as gallery forests,are very heterogeneous in structure,species composition and ecological features due to strong and abrupt variations of soil,hydrological and topographic ***,what are the variables driving forest carbon stock and productivity,mortality and recruitment in disturbed gallery forests?Methods We used 36 permanent plots data from a gallery forest in the Brazilian *** investigated how tree community dynam-ics vary in a gallery forest on two contrasting disturbance levels-logged and non-logged-across a topographic gradient intrinsically related to differences in moisture conditions,edge effects,as well as soil fertility and *** Findings Soil variables were reduced into principal components and we used structural equation modelling to disentangle covarying *** also included carbon stocks as a determinant variable of dynamics *** forest had 50%higher productivity than non-logged forest and streamside forest had aboveground carbon stocks 70%higher than the forest *** logging and natural disturbance drove variation in the carbon stocks which contributed to shaping productivity and recruitment *** from the river also drove mortality and carbon stock *** with high-carbon stocks favoured higher competition and lessened produc-tivity and recruitment *** soil fertility and texture are considered crucial components shaping forest dynamics,there was no clear influence of those variables on the present forest,probably because the strong effects of soil moisture,forest edge and distur-bance disrupted the correlation between soil and forest dynamics.

关键词： riparian vegetation topography soil properties disturbance gallery forest structural equation modelling

Rescuing agroforestry as strategy for agriculture in Southern Brazil

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Journal of Forestry Research 2016年第4期27卷 739-746页

作者： Alexandre Siminski Karine Louise dos Santos Juliano Gil nunes Wendt Universidade Federal de Santa Catarina Centro de Curitibanos

Knowledge about agricultural ecosystems, as well as about ecological and social interactions that occur in an agricultural context, is essential to promote a balanced environment for production. Incorporating the forest landscape into farming systems has promoted the development of integrated production systems such as agroforestry. However, many aspects of the relationship between farming and the forest landscape have changed since the modernization of agriculture introduced by the Green Revolution. The objectives of this review are：（1） to contribute to the understanding of the changes in cultivation strategies and in the dynamics of agricultural systems,particularly in the context of farming in Santa Catarina State, Brazil;（2） to contribute to the understanding of agroforestry systems as a strategy to reintroduce the element of forestry into agricultural production systems; and（3） to compile a list of forest plant species that could be used in agroforestry. The approach adopted in this manuscript seeks to highlight the potential of agroforestry systems to conserve natural resources and thereby to support agricultural development by connecting environmental conservation with income for farmers.

关键词： agriculture agricultural farming Brazil landscape cultivation modernization highlight income compile

Characterization of PetM cytochrome b6f subunit 7 domain-containing protein in tomato

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Horticulture Research 2023年第12期10卷 14-25页

作者： Mustafa Bulut Adriano nunes-Nesi Alisdair R.Fernie Saleh Alseekh Root Biology and Symbiosis Max-Planck-Institute of Molecular Plant PhysiologyAm Mühlenberg 114476 PotsdamGermany Departamento de Biologia Vegetal Universidade Federal de ViçosaViçosa 36570-900 MGBrazil Plant Metabolomics The Center for Plant Systems Biology and Biotechnology4000 PlovdivBulgaria

In recent years,multiple advances have been made in understanding the photosynthetic machinery in model *** transfer to horticultural important fruit crops is challenging and time-consuming due to restrictions in gene editing tools and prolonged life ***,we characterize a gene encoding a PetM domain-containing protein in *** CRISPR/Cas9 knockout lines of the PetM showed impairment in the chloroplastic electron transport rate(ETR),reduced CO_(2) assimilation,and reduction of carotenoids and chlorophylls(Chl)under several light ***,growth-condition-dependent elevation or repression of Chl a/b ratios and de-epoxidation states were identified,underlining possible impairment compensation ***,under low light and glasshouse conditions,there were basal levels in CO_(2) assimilation and ETR,indicating a potential role of the PetM domain in stabilizing the cytochrome b6f complex(Cb6f)under higher light irradiance and increasing its quantum *** suggests a potential evolutionary role in which this domain might stabilize the site of the Cb6f regulating ratios of cyclic and linear electron transport and its potential importance during the conquest of terrestrial ecosystems during which plants were exposed to higher ***,the results are discussed with regard to metabolism and their implication to photosynthesis from an agronomic perspective.

关键词： assimilation metabolism consuming