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Minimal Repair Redundancy for Coherent Systemin its Signatures Representation

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American Journal of Operations Research 2011年第1期1卷 8-15页

作者： Vanderlei da costa Bueno 不详

In this paper we discuss how to maintain the signature representation of a coherent system through a minimal repair redundancy. In a martingale framework we use compensator transforms to identify how the components mi... 详细信息

关键词： System signature Dynamic system signature Coherent systems Point processes martingales

Public Accounting and IPSAS in Portugal： The Accounting Standardization System for Public Administrations

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Journal of Modern Accounting and Auditing 2018年第4期14卷 153-164页

作者： Maria da Conceicao da costa Marques Higher Institute of Accounting and Administration of Coimbra (ISCAC) Coimbra Portugal University of Coimbra (FDUC) Coimbra Portugal

The Accounting Standardization System for Public Administrations （SNC-AP） was approved by Decree-Law No. 192/2015, of September 11 and constituted the new accounting system for public administrations in Portugal, which will take effect from January 1, 2017, although there were pilot entities that are already applying it in the year 2016. The reasons for the approval of these accounting regulations are presented in the approval diploma itself, the existence of a strong fragmentation and outdated accounting standardization for the public sector. This paper intends to analyze the public accounting reform in Portugal based on the SNC-AP and the impacts that it will determine in public institutions in terms of accounting in relation to the previous POC-P regime and sectoral plans as well as the resources involved in the Implementation. Likewise, it is intended to assess whether all public bodies subject to its adoption will proceed to its implementation on January 1, 2017, as planned. For this purpose, the data available on this subject will be used, in particular those of the Directorate-General for the Budget of the Ministry of Finance.

关键词： public accounting SNC-AP public administrations reform

Global Governance and International Relations in the New Millennium

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International Relations and Diplomacy 2021年第9期9卷 355-360页

作者： JoséPereira da costa Lisbon University LisbonPortugal

Undoubtedly,the first and second decades of the 21st century proved to be a time of unbelievable changes that history rarely *** the beginning of the new Millennium,the achievement of the United States,as the sole and hegemonic superpower,was followed by the 9/11 attack,one of the most audacious in ***“war on terror”of President George *** was put shortly out of control and provoked more broadly a new wave of terror and war all over the ***,the 2007/2008 financial crisis erupting in Wall Street and spreading to Europe jeopardize the role of the European Union as a pillar of peace and contributor to global governance,together with the United ***,its manu military alliance with the United States,through the North Atlantic Treaty Organization(NATO),in their offensive to dominate the Middle East,provoked a huge refugee crisis and the rise of populism in *** there a need for the European Union to change and disregard the American struggle to maintain its hegemonic position undermined by China and other rivals?Through the Theory of International Relations,this is to be uncovered and the consequence of weakened global governance,along with the European Union’s impoverished policies towards its most fragile European member states.

关键词： US hegemony EU crisis China’s rise

Mechanical design of an ultra-light vertex detector prototype for CEPC

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Radiation Detection Technology and Methods 2022年第2期6卷 159-169页

作者： Jinyu Fu Zhijun Liang Hao Zeng Gang Li Mingyi Dong Huamin Qu Joao Guimaraes da costa Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Particle Detection and Electronics.Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China

Background The Circular Electron Positron Collider(CEPC)is a large international scientific facility proposed to study the Higgs boson in great *** requires state-of-the-art detectors,including extremely precise vertexing and tracking devices,such as a silicon vertex *** Silicon vertex detector with the precision required by the CEPC has never been built before and needs extensive research and *** paper describes the mechanical design of a vertex detector prototype being built to explore the required technologies and the major *** The exceptional high spatial resolution of the CEPC vertex detector is achievable only with a detector of extremely low mass to limit particle *** paper proposes a mechanical design for the vertex detector prototype,highlighting the choice of low-mass materials,the analysis of support structures,the solution of detector cooling issues,and the drafts of procedures for detector *** The ultra-light support of the ladder(a structural unit of the CEPC vertex detector prototype),which is mainly made of carbon fiber reinforced polymer composite,has been *** fabrication process has also been *** supporting and cooling method of the vertex detector prototype has been designed and chosen with results from finite element analysis and computational fluid dynamics *** assembly and installation schemes for the prototype have been developed,and the respective tooling has also been *** performance of the vertex detector prototype,using this low-mass mechanical structure,was demonstrated with fast simulation to closely meet the CEPC physics requirement.

关键词： CEPC Silicon detector Mechanical design Carbon fiber reinforced polymer

Mortality Trends for Neglected Tropical Diseases in the State of Sergipe,Brazil,1980-2013

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Infectious Diseases of Poverty 2017年第1期6卷 173-180页

作者： Marcos Antonio costa de Albuquerque danielle Menezes Dias Lucas Teixeira Vieira Carlos Anselmo Lima Angela Maria da Silva University Hospital Federal University of SergipeRua Claudio Batista s/nB.Santo AntonioAracajuSE 49060-108Brazil Post-doc Medicine Unit Federal University of SergipeRua Claudio Batista s/nB.Santo AntonioAracajuSE 49060-108Brazil

Background:Neglected Tropical Diseases are a set of communicable diseases that affect the population so low socioeconomic status,particularly 1.4 billion people who are living below the poverty *** study has investigated the magnitude and mortality time trends for these diseases in the state of Sergipe,Northeast Region of ***:We conducted an ecological study of time series,based on secondary data derived from the Mortality Information System of the Ministry of *** mortality rates(crude,age-standardized rates and proportional ratio)were calculated from the deaths due to Neglected Tropical Diseases in the state of Sergipe,from 1980 to *** time trends were obtained using the Joinpoint regression ***:Three hundred six thousand and eight hundred seventy-two deaths were certified in the state and Neglected Tropical Diseases were mentioned as the underlying cause in 1,203 certificates(0.39%).Mean number of deaths was 35.38 per year,and crude and age-standardized mortality rates were,respectively:2.16 per 100000 inhabitants(95%CI:1.45-2.87)and 2.87 per 100000 inhabitants(95%CI:1.93-3.82);the proportional mortality ratio was 0.41%(95%CI:0.27-0.54).In that period,Schistosomiasis caused 654 deaths(54.36%),followed by Chagas disease,with 211(17.54%),and by Leishmaniases,with 142(11.80%)*** other diseases totalized 196 deaths(16.30%).There were increasing mortality trends for Neglected Tropical Diseases,Schistosomiasis and Chagas disease in the last 15 years,according to the age-standardized rates,and stability of the mortality trends for ***:The Neglected Tropical Diseases show increasing trends and are a real public health problem in the state of Sergipe,since they are responsible for significant mortality *** following diseases call attention for showing greater number of deaths in the period of study:Schistosomiasis,Chagas disease and *** finally suggest that public managers take appropri

关键词： Mortality Neglected tropical diseases Trends Joinpoint

Movement behaviors and their association with depressive symptoms in Brazilian adolescents:A cross-sectional study

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Journal of Sport and Health Science 2022年第2期11卷 252-259页

作者： Bruno Goncalves Galdino da costa Jean-Philippe Chaput Marcus Vinicius Veber Lopes Luis Eduardo Argenta Malheiros Kelly Samara Silva Research Centre in Physical Activity and Health Federal University of Santa CatarinaFlorianopolis88040-900Brazil Healthy Active Living and Obesity Research Group Children’s Hospital of Eastern Ontario Research InstituteOttawaON K1H 8L1Canada

Background:Physical activity,sleep,and sedentary behaviors compose 24-h movement behaviors and have been independently associated with depressive ***,it is not clear whether it is the movement behavior itself or other contextual factors that are related to depressive *** objective of the present study was to examine the associations between self-reported and accelerometer-measured movement behaviors and depressive symptoms in ***:Cross-sectional data from 610 adolescents(14-18 years old)were *** answered questions from the Center for Epidemiological Studies Depression scale and reported time spent watching videos,playing videogames,using social media,time spent in various physical activities,and daytime ***-worn accelerometers were used to measure sleep duration,sleep efficiency,sedentary time,and physical ***-effects logistic regressions were ***:Almost half of the adolescents(48%)were classified as being at high risk for depression(score≥20).No significant associations were found between depressive symptoms and accelerometer-measured movement behaviors,self-reported non-sport physical activity,watching videos,and playing ***,higher levels of self-reported total physical activity(odd ratio(OR)=0.92,95%confidence interval(95%CI):0.86-0.98)and volume of sports(OR=0.88,95%CI:0.79-0.97),in minutes,were associated with a lower risk of depression,while using social media for either 2.0-3.9 h/day(OR=1.77,95%CI:1.58-2.70)or>3.9 h/day(OR=1.67,95%CI:1.10-2.54),as well as higher levels of daytime sleepiness(OR=1.17,95%CI:1.12-1.22),were associated with a higher risk of ***:What adolescents do when they are active or sedentary may be more important than the time spent in the movement behaviors because it relates to depressive *** daytime sleepiness,promoting sports,and limiting social media use may benefit adolescents.

关键词： Accelerometry Depression Physical activity Sedentary behavior Sleep

Broadband Optical Active Waveguides Written by Femtosecond Laser Pulses in Lithium Fluoride

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Chinese Physics Letters 2014年第1期31卷 72-75页

作者： Ismael Chiamenti Francesca Bonfigli Anderson S. L. Gomes Rosa Maria Montereali Larissa N. da costa Hypolito J. Kalinowski Federal University of Technology- Parang 80230-901 Curitiba Brazil ENEA C. R. Frascati Photonics Micro and Nanostructures Laboratory UTAPRAD-MNF V. E. Fermi 45 00044 Frascati (Rome) Italy Department of Physics Universidade Federai de Pernambuco necife Brazil

Broadband waveguiding through light-emitting strips directly written in a blank lithium fluoride crystal with a femtosecond laser is reported. Light guiding was observed at several optical wavelengths, from blue, 458 nm, to near-infrared, at 155nm. Visible photoluminescence spectra of the optically active F2 and F33 color centers produced by the fs laser writing process were measured. The wavelength-dependent refractive index increase was estimated to be in the order of 10-3-10-4 in the visible and near-infrared spectral intervals, which is consistent with the stable formation of point defects in LiF.

关键词： POINT defects CRYSTAL defects IMPURITY centers ANTISITE defects INTERSTITIALS FLUX pinning

Cytokines,cytokine gene polymorphisms and Helicobacter pylori infection:Friend or foe?

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World Journal of Gastroenterology 2014年第18期20卷 5235-5243页

作者： Camila A Figueiredo Cintia Rodrigues Marques Ryan dos Santos costa Hugo Bernardino F da Silva Neuza M Alcantara-Neves Instituto de Ciências da Saúde Universidade Federal da BahiaSalvadorBahia 41110-100Brazil

Helicobacter pylori(***)is a flagellated,spiralshaped,microaerophilic Gram-negative bacillus that colonises the gastric mucosa of more than 50%of the human *** is a risk factor for gastritis,ulcer disease and stomach *** against *** is mainly related to Th1/Th17 skewing,and the activation of regulatory T cells is the main strategy used to limit inflammatory responses,which can result in the pathogen persistence and can lead to chronic gastrointestinal diseases,including ***,host genetic factors that affect cytokines may determine differences in the susceptibility to many *** this review,we present the cytokine profiles and the main cytokine gene polymorphisms associated with resistance/susceptibility to *** and discuss how such polymorphisms may influence infection/disease outcomes.

关键词： Helicobacter pylori Stomach cancer Immunity Cytokines Polymorphisms

Distinct physiological mechanisms underpin growth and rehydration of Hymenaea courbaril and Hymenaea stigonocarpa upon short-term exposure to drought stress

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Journal of Forestry Research 2023年第1期34卷 113-123页

作者： Luana M.Luz Ediane C.Alves Nariane Q.Vilhena Tamires B.Oliveira Zara G.B.Silva Joze M.N.Freitas Candido F.O.Neto roberto C.L.costa Lucas C.costa Universidade Federal Rural da AmazOia CapanemaPA 68700-665Brazil Universidade Federal Rural da AmazEia BelémPA 66077-830Brazil

Plants hold biochemical and physiological mechanisms to withstand drought ***,depending on water deficit interval,plant rehydration relies on how it can retain growth or a positive water balance—or rarely *** this study,two species of Hymenaea,one from the Amazon and the other from the Brazilian Cerrado,were investigated for their physiological mechanism associated with growth rehydration upon short-term exposure to drought *** findings demonstrate that Hymenaea courbaril tends to invest in nitrogen to the detriment of carbon compounds,-as it is limited by lower net photosynthesis-and adjust root growth to attenuate drought stress *** contrast,Hymenaea stigonocarpa takes advantage of higher water potential and a basal rate of lower net photosynthesis to support aboveground growth under such ***,it is postulated that there are distinct ways of controlling water status and growth between *** and ***,which are determined either by the ability of the species to keep net photosynthesis at low levels of water content or by favoring the accumulation of nitrogen *** mechanisms were effective with regards to water use efficiency and thus it is reasonable to suggest that strategies are not exclusive and may work under adverse conditions,as observed in Amazon and Brazilian Cerrado ***.

关键词： Hymenaea courbaril Hymenaea stigonocarpa Growth Photosynthesis Water deficit