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Simple Classical Lie Algebras in Characteristic 2 and Their Gradations, II

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Algebra Colloquium 2014年第2期21卷 207-214页

作者： Alexandre N. Grishkov Marines guerreiro Instituto de Matematica e Estatfstica Universidade de Sao Paulo Sao Paulo-SP Brazil Departamento de Matematica Universidade Federal de Vicosa Vicosa-MG Brazil

This paper is a continuation of [2]. We prove Conjecture 5.1 of [2] which gives a characterization of simple Lie algebras of finite dimension of type B2e, C2e, D2e＋1, E7 and Es in terms of some gradations of these al... 详细信息

关键词： Lie algebras characteristic 2 gradations

Wax deposition mechanisms and the effect of emulsions and carbon dioxide injection on wax deposition: Critical review

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Petroleum 2020年第3期6卷 215-225页

作者： A.M.Sousa H.A.Matos L.guerreiro CERENA Department of Chemical Engineering Instituto Superior Técnico Universidade de Lisboa Partex Oil and Gas

Wax deposition inside the tubing walls endures being a critical operational challenge faced by the petroleum industry. The build-up of wax deposits may lead to the increase of pumping power, as well as the decrease of flow rate or, even, to the total blockage, with production losses and high operational costs. The current paper is a critical review of the main deposition mechanisms involved in wax deposition. Most of wax deposition models regard molecular diffusion as the dominant wax deposition mechanism. However, there are other deposition mechanisms which can also play a role. As most oil fields produce water along with crude oil, the deposition process for oil-water emulsions has also been investigated. Furthermore, carbon dioxide injection effects upon wax appearance temperature along its current applications onto wells have been reviewed. Having a total awareness of the wax deposition mechanisms background is the key factor to prevent the wax precipitation and control the deposition of solid wax crystals.

关键词： Wax deposition mechanism Molecular diffusion Brownian diffusion Shear dispersion Shear removal Thermal diffusion Emulsions Carbon dioxide

Transient leaf endophytes are the most active fungi in 1-year-old beech leaf litter

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Fungal Diversity 2018年第2期89卷 237-251页

作者： Marco Alexandre guerreiro Andreas Brachmann Dominik Begerow Derek Persoh AG Geobotany Faculty of Biology and BiotechnologyRuhrUniversitat BochumUniversitatsstraße 15044801 BochumGermany Faculty of Biology GeneticsLudwig-MaximiliansUniversity MunichGroßhaderner Straße 2-482152 Planegg-MartinsriedGermany

The ecological significance of fungi occurring asymptomatically inside living plant leaves is poorly *** the broad saprotrophic potential of many endophytic fungi,we hypothesized that they persist in decaying litter for an extended period of time after leaf *** assemblages were assessed by highthroughput sequencing in autumn leaves of beech(Fagus sylvatica)and in the corresponding leaf litter in 388 samples from 22 beech forest plots in three widely distant regions of Germany.A considerable proportion of the leafendophytic fungi was also found in 1-year-old ***occurrence networks revealed that the fungi formed unstructured assemblages inside the living leaves,rather than well-structured *** endophytic fungi constituted an integral part of the fungal litter community and were by far the most active fungi in 1-year-old *** therefore consider these endophytic occurrences to represent transient *** of the aboveground microbiome appears therefore to be closely connected to the process of litter *** the respective linked fungal habitat will facilitate predicting nutrient and carbon cycling and storage in forest ecosystems as well as elucidating the ecology of leaf microbiomes.

关键词： Endophytic fungi Litter fungi Plant microbiome Co-occurrence networks Litter decomposition Community assembly

Integrating an academic management system with blockchain:A case study

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Blockchain(Research and Applications) 2022年第4期3卷 81-90页

作者： Sergio guerreiro Joao F.Ferreira Tiago Fonseca Miguel Correia INESC-ID Rua Alves Redol 91000-029LisbonPortugal Instituto Superior Tecnico University of Lisbon1649-004LisbonPortugal

This paper reports the design,implementation,and experimental phases of the EU H2020 QualiChain pilot“Staffing the Public Sector—The Case of Portugal”.The overall purpose of this pilot is to ensure the authenticity and integrity of the diplomas for all involved stakeholders and therefore to contribute to solving the diploma counterfeiting and/or falsification that is a great threat to the recruitment of qualified *** main innovative aspect of this solution is the integration that is offered between an Academic Management System(the *** platform)and a Blockchain(Ethereum)to automatically deploy *** solution helps the involved stakeholders trust the diplomas *** case study involves four different stakeholders and studies,specifically,the increase in their satisfaction in terms of diploma control,diploma veracity,and diploma *** developed system was tested with external participants who were asked to follow a set of guidelines and complete a survey to assess their *** system interactions were recorded,and the data were *** results indicated that the participants successfully executed the guidelines and that a perception increase toward diploma control,veracity,and credibility was identified.

关键词： Blockchain University management system Authenticity Document verification Education certificate Ethereum Integrity Smart contrac

Biocompatibility and internalization of molecularly imprinted nanoparticles

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Nano Research 2016年第11期9卷 3463-3477页

作者： Francesco Canfarotta Alicia Waters Robyn Sadler Paul McGill Antonio guerreiro Dmitri Papkovsky Karsten Haupt Sergey Piletsky MIP Diagnostics Ltd. University of Leicester Fielding Johnson Building University Road Leicester LE 1 7RH UK School of Biochemistry and Cell Biology University College Cork College Road Cork Ireland GSK David Jack Centre for R&D Park Road Ware Hertfordshire SG 12 0DP UK Chemistry Department University of Leicester Leicester LE1 7RH UK Compiegne University of Technology CNRS Enzyme and Cell Engineering Laboratory Rue Roger Couttolenc CS 50319 50203 Compiegne Cedex France

Molecularly imprinted polymers （MIP） are receiving increasing attention thanks to their robustness, stability, and inexpensive manufacture compared with their bio-analogues such as antibodies. The molecular imprinting process can be defined as the generation of molecular recognition sites in a synthetic polymer. The template-derived sites created within a polymeric matrix allow MIPs （often referred as plastic antibodies） to selectively recognize and bind to the target molecule. Therefore, MIPs can be used in sensors and in separation and diagnostics. Owing to their size and functional properties, MIP nanoparticles （NPs） can potentially be used in biomedicine, but comprehensive analysis of their interaction with cells and in vitro toxicological tests must be performed first. Herein, we report the synthesis of bare and core-shell imprinted NPs using an innovative solid-phase approach and the toxicological evaluation of such NPs in different cell lines （HaCaT, MEFs, HT1080, and macrophages）. We also evaluated the influence of the protein corona on particle stability, the internalization of NPs in cells, and the influence of various surface coatings. Studies on the metabolic effects of imprinted NPs on fibroblasts showed that bare MIPs do not alter cell metabolism, whereas some issues arise when specific particle coatings are used. Furthermore, in vitro cytokine release studies revealed that macrophages were not activated in the presence of the MIPs evaluated in this study. The results suggest that MIP NPs are biocompatible, paving the way for their in vivo application.

关键词： pegylation core-shell toxicology inflammatory response particle uptake metabolism

The State of Sea Systems and Practices in East and Southern Africa

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Journal of Environmental Protection 2016年第2期7卷 287-302页

作者： Cristina Rebelo José guerreiro Centro MARE Faculdade de Ciências da Universidade de Lisboa Campo Grande Edifício ICAT Portugal

This paper develops a comparative overview of SEA in Kenya, Tanzania and South Africa regarding legal, institutional and procedural perspectives, in order to assess their effectiveness and unveil main constrains. It is clear from this brief review that SEA is a tool of environmental governance that is of growing importance in East and Southern Africa. With regards to the institutional and legal framework, both Kenya and Tanzania have formal provisions for SEA, but no specific legislation. The main constrains on SEA effectiveness are related to the lack of a clear mandate and institutional framework, guidelines for procedures and public participation. As this analysis and case studies from the three countries examined here reveal, Kenya, Tanzania, and South Africa have expanded their use of SEA as a preventive mechanism for environmental policy and to enhance the efficiency of strategic decisions. While each of these countries has made great strides in developing the SEA process and integrating it into their decision-making processes, much work remains to be done. Ongoing refinement to the SEA process, both within this region and elsewhere in the world, will mean that this important tool integrates sustainable environmental management principles and practices into policies, plans, and programmes and the decision-making process.

关键词： Strategic Environmental Assessment East and Southern Africa Comparing SEA Systems and Practices

Environmental Sustainability: A 30-Year Progress Assessment in Portugal

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Journal of Environmental Protection 2019年第11期10卷 1507-1535页

作者： Rita Cravo José guerreiro Faculdade de Ciências da Universidade de Lisboa Lisboa Portugal MARE-Marine and Environmental Sciences Centre Faculdade de Ciências da Universidade de Lisboa Lisboa Portugal

Sustainable development is a common goal for all countries since the concept was adopted at the 1992 Rio Conference. European Union (EU) became a world leader in most of indicators despite successive enlargement of country members with newcomers often facing basic environmental problems. In 1986, Portugal became a member of the European Economic Community (EEC), and immediately began to reflect its environmental policies. Over the last 30 years, the support of EU funds and the implementation of environmental public policies in Portugal, have been essential for the country’s sustainable development. As a result, Portugal’s standards started to be closer to those of the EU and, in some cases even exceeded it. The present article addresses, for the first time, a long series of 30 years (1987-2017), in a retrospective analysis of a set of indicators, in order to characterize the evolution of Portugal’s environmental sustainability, its relationship to the national public policies, and in the context of the EU. The progress of the indicators towards specific environmental sustainability targets is also evaluated. Moreover, a set of key indicators that also evaluate the goals of the 2030 Agenda for Sustainable Development are identified. The results show that the evolution of Portugal’s environmental sustainability in the last 30 years was remarkable. The water standards, air quality, urban waste, and energy sectors showed high improvement. However, the evolution in the sectors such as land use, and environmental risks, particularly forest fires, were negative. On the other hand, for some indicators, such as renewable energies or bathing water quality, Portugal performed better than the EU-28. Environmental performance shows the positive influence of EU environment policies and structural support, changing dramatically the quality of the environment in Portugal, from a negative situation to a success case study in a generation period.

关键词： Environmental Sustainability Indicators Sustainable Development Goals 2030 Agenda

Comparative Evaluation of the EIA Systems in Kenya, Tanzania, Mozambique, South Africa, Angola, and the European Union

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Journal of Environmental Protection 2017年第5期8卷 603-636页

作者： Cristina Rebelo José guerreiro Faculdade de Ciências de Lisboa Edifício TECLABS Lisboa Portugal

This article provides a comparative overview of environmental impact assessment (EIA) in Mozambique, Tanzania, Kenya, South Africa, Angola, and the European Union (EU). EIA “systemic measure” and “foundation measure” criteria are used to evaluate and compare the performance of each system. In contrast to the EU, EIA must be carried out by registered experts in the African countries. In Tanzania, Mozambique and South Africa public consultation is mandatory during scoping. In Kenya and Tanzania the EIA study should contain measures to prevent health hazards, to ensure employee safety, and for emergency management. EIA system monitoring is required in Kenya, Tanzania, Mozambique, and in the EU, but not in South Africa and Angola. Financial issues, insufficient qualified personnel, and an increasing number of EIA applications undermine the capacity of competent authorities to adequately monitor these EIA systems. Consequently, training programmes increase effectiveness of EIA implementation is a common request. The African countries reviewed here have adopted EIA and integrated EIA systems into public policy despite the constraints they face. As they continue to gain experience in EIA and to revise their EIA systems, they are moving towards a more flexible system with greater public involvement and robust arrangements and practices.

关键词： Environmental Impact Assessment (EIA) EIA Procedures EIA Contents EIA Evaluation Criteria

Bioclimatic Urbanism and Regional Design in Portugal： The Atlantic and the Mediterranean Contexts

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Journal of Civil Engineering and Architecture 2012年第8期6卷 963-973页

作者： Maria guerreiro Israel Guarda Center for Research and Studies in Sociology University Institute of Lisbon-Av. Forgas Armadas Lisbon 1649-026 Potugal Institute of Art History New University of Lisbon-Av. de Berna Lisbon 1069-061 Potugal Institute of Art History New University of Lisbon-Av. de Berna Lisbon 1069-061 Potugal

The subject of the present work is the study of the relationship between the city shape and its geographical and climatic context. This is a very important feature of the Portuguese city. The Iberian Peninsula comprised by Spain and Portugal belongs to very different environments： the Atlantic and Mediterranean sea. This position is responsible for a series of highly contrasted regions. The external forces presented in each region, influence the shape, location and orientation, not only of individual buildings but of whole villages in such a way that we can identify pattems of construction in different natural regions. There is in fact, a remarkable correspondence between climate and urban type which is useful to identify for planning the different regions. The legacy of industrial city, as in other parts of the world, has changed this close connection between geography and architecture, with consequences not only in environment but especially for the identity of urban spaces. Bioclimatic urbanism is not just a question of sustainability or survival. It is also a question of local identity and variety. There is in fact a relationship between cultural process and environment responsive which we can learn from the structures of the past -- the pre-industrial city. We believe that the reinterpretation of the traditional city pattems forms a language which can be used as a design process for recovering urban landscape.

关键词： Urban nature regional design bioclimatic urbanism environmental response local identity.