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Effects of Two Isometric Strength Training methods on Jump and Sprint Performances:A Randomized Controlled Trial

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Journal of Science in Sport and Exercise 2021年第2期3卷 115-124页

作者： Danny Lum tiago m.barbosa Ranald Joseph Govindasamy Balasekaran Sport Science and Sport medicine Singapore Sport Institute3 Stadium DriveSingapore 397630Singapore Physical Education and Sports Science National Institute of EducationNanyang Technological UniversitySingaporeSingapore Polytechnic Institute of Braganca BragançaPortugal Research Centre in Sports Health and Human Development(CIDESD)Vila RealPortugal

Purpose Isometric strength training (IST) with rapid non-sustained contraction (RIST) is effective in improving the ability to generate force ***,the neuromuscular adaptation of IST with sustained contraction (SIST) and RIST is not ***,the aim of the study was to compare the neuromuscular adaptations of RIST with *** Thirty-three national floorball players (23.9 ± 3.1 years old;1.69± 0.08 m;64.6± 11.1 kg) were recruited for this ***-and post-test included countermovement jump (CmJ),30-m sprint (TT30),isometric squat at 90° (ISqT90) and 120° (ISqT120) knee *** were randomly assigned to either control (Con) (n =9),RIST (n =12) or SIST (n =12)group and performed 12 sessions of intervention *** groups performed the same sets of exercises,but RIST and SIST had to perform ISqT with and without sustained contraction,*** Time × group effect for CmJ height (P =0.01,η2p=0.25),peak force (PF) (P =0.03,η2p =0.22) and rate of force development (RFD) (P =0.02,η2p =0.22) obtained from ISqT 120 were noted.A main effect for time was observed in CmJ height,PF obtained from ISqT90 and ISqT120,and RFD obtained from ISqT90 (P mprovement in TT30 (P =0.043,d =3.00),ISqT90 PF (P =0.034,d =3.12),ISqT 120 PF (P =0.003,d =4.54) and ISqT120 RFD (P=0.033,d=1.36) in the SIST than the Con *** SIST was more effective in improving strength and dynamic performance as compared to RIST,making it a viable training method to enhance dynamic performances.

关键词： Countermovement jump Isometric squat Peak force Rate of force development

Elastically restrained Bernoulli-Euler beams applied to rotary machinery modelling

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Acta mechanica Sinica 2011年第1期27卷 56-62页

作者： tiago A.N.Silva Nuno m.m.maia ISEL Polytechnic Institute of LisbonDepartment of Mechanical EngineeringRua Conselheiro Emídio Navarro IDmEC-IST Technical University of LisbonDepartment of Mechanical Engineering

Facing the lateral vibration problem of a machine rotor as a beam on elastic supports in bending,the authors deal with the free vibration of elastically restrained Bernoulli-Euler beams carrying a finite number of concentrated elements along their *** on Rayleigh’s quotient,an iterative strategy is developed to find the approximated torsional stiffness coefficients,which allows the reconciliation between the theoretical model results and the experimental ones,obtained through impact *** mentioned algorithm treats the vibration of continuous beams under a determined set of boundary and continuity conditions, including different torsional stiffness coefficients and the effect of attached concentrated masses and rotational inertias, not only in the energetic terms of the Rayleigh’s quotient but also on the mode shapes,considering the shape functions defined in *** loading cases are examined and examples are given to illustrate the validity of the model and accuracy of the obtained natural frequencies.

关键词： Transverse vibration of beams · Elastic supports · Torsional stiffness coefficients

Vertical stratification of bat assemblages in flooded and unflooded Amazonian forests

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Current Zoology 2010年第4期56卷 469-478页

作者： maria Joo Ramos PEREIRA Joo tiago mARQUES Jorge m.PALmEIRIm Centro de Biologia Ambiental Departamento de Biologia Animal Faculdade de Ciências da Universidade de Lisboa Instituto de Desenvolvimento Sustentvel mamirau

Tropical rainforests usually have multiple strata that results in a vertical stratification of ecological opportunities foranimals. We investigated if this stratification influences the way bats use the vertical space in flooded and unflooded forests of theCentral Amazon. Using mist-nets set in the canopy (17 to 35 m high) and in the understorey (0 to 3 m high) we sampled four sitesin upland unflooded forests (terra firme), three in forests seasonally flooded by nutrient-rich water (varzea), and three in forestsseasonally flooded by nutrient-poor water (igapo). Using rarefaction curves we found that species richness in the understorey andcanopy were very similar. An ordination analysis clearly separated the bat assemblages of the canopy from those of the understorey inboth flooded and unflooded habitats. Gleaning carnivores were clearly associated with the understorey, whereas frugivores wereabundant in both strata. Of the frugivores, Carollinae and some Stenodermatinae were understorey specialists, but several Stenodermatinaemostly used the canopy. The first group mainly includes species that, in general, feed on fruits of understorey shrubs,whereas the second group feed on figs and other canopy fruits. We conclude that vertical stratification in bat communities occurseven within forests with lower canopy heights, such as Amazonian seasonally flooded forests, and that the vertical distribution ofbat species is closely related to their diet and foraging behaviour.

关键词： Amazon Bats Chiroptera Vertical stratification Floodplain

Towards the automation of book typesetting

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Visual Informatics 2023年第2期7卷 1-12页

作者： Sérgio m.Rebelo tiago martins Diogo Ferreira Artur Rebelo University of Coimbra Centre for Informatics and Systems of the University of CoimbraDepartment of Informatics EngineeringCoimbraPortugal

This paper proposes a generative approach for the automatic typesetting of books in desktop *** presented system consists in a computer script that operates inside a widely used design software tool and implements a generative process based on several typographic rules,styles and principles which have been identified in the *** performance of the proposed system is tested through an experiment which included the evaluation of its outputs with *** results reveal the ability of the system to consistently create varied book designs from the same input content as well as visually coherent book designs with different contents while complying with fundamental typographic principles.

关键词： Design tools Data-driven design Generative design Graphic design Typography

Analysis of the impact of large scale seismic retrofitting strategies through the application of a vulnerability-based approach on traditional masonry buildings

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Earthquake Engineering and Engineering Vibration 2017年第2期16卷 329-348页

作者： tiago miguel Ferreira Rui maio Romeu Vicente ISISE Department of Civil EngineeringUniversity of MinhoCampus de Azurém RISCO Department of Civil EngineeringUniversity of AveiroCampus Universitário de Santiago

The buildings＇ capacity to maintain minimum structural safety levels during natural disasters, such as earthquakes, is recognisably one of the aspects that most influence urban resilience. moreover, the public investment in risk mitigation strategies is fimdamental, not only to promote social and urban and resilience, but also to limit consequent material, human and environmental losses. Despite the growing awareness of this issue, there is still a vast number of traditional masonry buildings spread throughout many European old city centres that lacks of adequate seismic resistance, requiring therefore urgent retrofitting interventions in order to both reduce their seismic vulnerability and to cope with the increased seismic requirements of recent code standards. Thus, this paper aims at contributing to mitigate the social and economic impacts of earthquake damage scenarios through the development of vulnerability-based comparative analysis of some of the most popularretrofitting techniques applied after the 1998 Azores earthquake. The influence of each technique individually and globally studied resorting to a seismic vulnerability index methodology integrated into a GIS tool and damage and loss scenarios are constructed and critically discussed. Finally, the economic balance resulting from the implementation of that techniques are also examined.

关键词： urban resilience masonry buildings retrofitting strategies vulnerability-based approach loss estimation

Acute pancreatitis and COVID-19:A literature review

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World Journal of Gastrointestinal Surgery 2021年第6期13卷 574-584页

作者： tiago Correia de Sá Carlos Soares mónica Rocha Department of General Surgery Centro Hospitalar do Tâmega e SousaPenafiel 4564-007Portugal

BACKGROUND Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is responsible for the ongoing pandemic of coronavirus disease 2019(COVID-19),and has caused more than 80 million infections and 1.7 million deaths *** it is primarily a respiratory virus,SARS-CoV-2 also has extra-pulmonary *** injury and cases of acute pancreatitis(AP)have been recognized and attributed to SARS-CoV-2,but the mechanisms of pancreatic injury are still a subject of *** is also controversy on whether SARS-CoV-2 can cause AP or if it is an *** To review and to explore the relationship between SARS-CoV-2 infection and AP,and to provide an overview of the existing literature on possible mechanisms of SARS-CoV-2-induced pancreatic *** A systematic review was conducted in accordance with PRISmA guidelines for papers on SARS-CoV-2 infection and AP.A narrative review on possible mechanisms of SARS-CoV-2-induced pancreatic lesion was also *** A literature review revealed a growing body of evidence on SARS-CoV-2-induced pancreatic lesions including the mechanisms of direct virus-mediated injury,systemic inflammatory response and circulating pro-inflammatory interleukins,virus-induced lipotoxicity,and drug-induced injury.A systematic review of the literature revealed 22 cases of AP in COVID-19 ***,limitations of the reported cases make it difficult to establish a causal relationship between SARS-CoV-2 infection and *** of the studies agreed on special monitoring and surveillance of this subset of patients due to the still unknown clinical progression,therapeutic implications,and *** AP should be considered in COVID-19 patients,especially in those exhibiting abdominal pain and systematic,and complete reporting of these cases should be general ***,there is still insufficient evidence showing that COVID-19 can cause AP or negatively impact *** studies are ne

关键词： Pancreatitis Pancreas COVID-19 SARS-CoV-2

The Role of Bottom Currents on the morphological Development Around a Drowned Carbonate Platform,NW South China Sea

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Journal of Ocean University of China 2022年第4期21卷 801-812页

作者： YU Kaiqi ALVES tiago m LI Wei LI Shuang LI Jian ZHAO Fang WU Shiguo ZHAN Wenhuan CAS Key Laboratory of Ocean and marginal Sea Geology South China Sea Institute of OceanologyChinese Academyof SciencesGuangzhou 510301China Southern marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China University of Chinese Academy of Sciences Beijing 100049China 3D Seismic Laboratory School of Earth and Ocean SciencesCardiff UniversityCardiff CF103ATUK Institute of Deep-Sea Science and Engineering Chinese Academy of SciencesSanya 572000China

The seafloor around carbonate platforms is largely shaped and modified by downslope ***,the role of alongslope processes,including bottom currents,on the morphological development of carbonate platforms remains poorly ***,we use high-resolution multibeam bathymetric data and two-dimensional seismic profiles to investigate the detailed sea-floor morphology around the Zhongjianbei carbonate platform(ZCP)in the northwest South China Sea.A series of depositional bodies and erosional channels are identified to the south of the ZCP and are interpreted as contourite drifts and channels resulted from the interaction between bottom currents and bathymetric *** addition,active fluid seepages have led to the formation of widespread pockmarks on the ***,the contourite channels and widespread pockmarks also show a close relationship in their *** propose that the contourite channels around the ZCP are evolved from the coalescence of pockmarks under the persistent erosion of bottom *** on the morphological analysis,we reconstruct the past bottom-current pathways around the ZCP that are parallel to the platform slopes and heading to the *** study provides new insights into the formation of complex bathymetry and helps understanding how bottom currents and active fluid seepages can influence the morphological development around carbonate platforms.

关键词： carbonate platform seafloor morphology contourite channels bottom currents fluid seepages South China Sea

Sifu-a cybersecurity awareness platform with challenge assessment and intelligent coach

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Cybersecurity 2018年第1期1卷 945-967页

作者： tiago Espinha Gasiba Ulrike Lechner maria Pinto-Albuquerque Siemens AG Corporate Technology Otto-Hahn-Rin 681379 MunichBavariaGermany Universitat der Bundeswehr münchen MunichGermany Instituto Universitario de Lisboa(ISCTE-IUL) ISTAR-IULLisbonPortugal

Software vulnerabilities,when actively exploited by malicious parties,can lead to catastrophic *** handling of software vulnerabilities is essential in the industrial context,particularly when the software is deployed in critical ***,several industrial standards mandate secure coding guidelines and industrial software developers’training,as software quality is a significant contributor to secure *** Challenges(CSC)form a method that combines serious game techniques with cybersecurity and secure coding guidelines to raise secure coding awareness of software developers in the *** cybersecurity awareness events have been used with success in industrial ***,until now,these coached events took place *** the present work,we briefly introduce cybersecurity challenges and propose a novel platform that allows these events to take place *** introduced cybersecurity awareness platform,which the authors call Sifu,performs automatic assessment of challenges in compliance to secure coding guidelines,and uses an artificial intelligence method to provide players with solution-guiding ***,due to its characteristics,the Sifu platform allows for remote(online)learning,in times of social *** CyberSecurity Challenges events based on the Sifu platform were evaluated during four online real-life CSC *** report on three surveys showing that the Sifu platform’s CSC events are adequate to raise industry software developers awareness on secure coding.

关键词： Cybersecurity Awareness Training Artificial intelligence Serious games Secure coding Static application security testing Capture-the-flag Software development in industry

Recycling process and proto-kimberlite melt metasomatism in the lithosphere-asthenosphere boundary beneath the Amazonian Craton recorded by garnet xenocrysts and mantle xenoliths from the Carolina kimberlite

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Geoscience Frontiers 2022年第5期13卷 89-105页

作者： Fernanda Gervasoni tiago Jalowitzki marcelo Peres Rocha Ricardo Kalikowski Weska Eduardo Novais-Rodrigues Rodrigo Antonio de Freitas Rodrigues Yannick Bussweiler Elisa Soares Rocha barbosa Jasper Berndt Elton Luiz Dantas Valmir da Silva Souza Stephan Klemme Centro de Engenharias Universidade Federal de Pelotas(UFPel)PelotasBrazil Programa de Pós-graduação em Geociências Universidade Federal do Rio Grande do SulPorto AlegreBrazil Programa de Pós-graduação em Geologia Instituto de GeociênciasUniversidade de Brasília(UnB)BrasíliaBrazil Faculdade de Geociências Universidade Federal do Mato Grosso(UFMT)CuiabáBrazil Institut für Geologie und mineralogie Universität zu KölnGermany Faculdade de Ciências e Tecnologia Universidade Federal de Goiás(UFG)Aparecida de GoiâniaBrazil Institut für mineralogie Universität MünsterMünsterGermany

Here we present new data on the major and trace element compositions of silicate and oxide minerals from mantle xenoliths brought to the surface by the Carolina kimberlite,Pimenta Bueno Kimberlitic Field,which is located on the southwestern border of the Amazonian *** also present Sr-Nd isotopic data of garnet xenocrysts and whole-rocks from the Carolina *** xenoliths are mainly clinopyroxenites and *** of the clinopyroxenites were classified as GPP–PP–PKP(garnet-phlogopite peridotite,phlogopite-peridotite,phlogopite-K-richterite peridotite)suites,and two clinopyroxenites(eclogites)and two garnetites are relicts of an ancient subducted *** and pressure estimates yield 855–1102℃ and 3.6–7.0 GPa,*** are enriched in light rare earth elements(LREE)(La_(N)/Yb_(N)=5–62;Ce_(N)/Sm_(N)=1–3;where N=primitive mantle normalized values),they have high Ca/Al ratios(10–410),low to medium Ti/Eu ratios(742–2840),and low Zr/Hf ratios(13–26),which suggest they were formed by metasomatic reactions with CO_(2)-rich silicate *** with high TiO_(2)(>2.0 wt.%),Al_(2)O_(3)(>12.0 wt.%),and FeOt(5.0–13.0 wt.%)resemble those found in the groundmass of kimberlites,lamproites and ***,phlogopite with low TiO_(2)(milar to those present in GPP-PP-PKP,and in mARID(mica-amphibole-rutile-ilmenite-diopside)and PIC(phlogopite-ilmenite-clinopyorxene)*** GPP-PP-PKP suite of xenoliths,together with the clinopyroxene and phlogopite major and trace element signatures suggests that an intense proto-kimberlite melt metasomatism occurred in the deep cratonic lithosphere beneath the Amazonian *** Sr-Nd isotopic ratios of pyrope xenocrysts(G3,G9 and G11)from the Carolina kimberlite are characterized by high ^(143)Nd/^(144)Nd(0.51287–0.51371)and eNd(+4.55 to+20.85)accompanied with enriched ^(87)Sr/^(86)Sr(0.70405–0.71098).These results suggest intera

关键词： Carolina kimberlite K-rich mantle xenoliths Ancient subducted slab Proto-kimberlite melt metasomatism