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Arlenea delicata *** ***.,a new ephedroid plant from the Early Cretaceous Crato Formation,Araripe Basin,Northeast Brazil

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Plant Diversity 2024年第3期46卷 362-371页

作者： Alita Maria Neves Ribeiro Yong Yang antonio Alamo Feitosa Saraiva Renan Alfredo Machado Bantim joao Tavares Calixto Junior Flaviana Jorge de lima Programa de Pos-Graduaçao em Diversidade Biologica e Recursos Naturais Universidade Regional do CaririRua Carolino SucupiraPimenta63105-160CratoCearaBrazil Co-Innovation Center for Sustainable Forestry in Southern China College of Biology and the Environment159 Longpan RoadNanjing Forestry UniversityNanjing210037China Laboratorio de Paleontologia Universidade Regional do CaririRua Carolino SucupiraPimenta63105-160CratoCearaBrazil Laboratorio de Estudos da Flora Regional Universidade Regional do CaririRua Carolino SucupiraPimenta63105-160CratoCearaBrazil Gondwanan Plants Lab Universidade Federal de PernambucoCentro Academico de VitoriaRua Do Alto Reservatorio S/nBela Vista55608-680Vitoria de Santo AntaoPernambucoBrazil Programa de Pos-Graduaçao em Geociencias(PPGEOC) Universidade Federal de Pernambuco(UFPE)Rua Av.da ArquiteturaS/n°CEP-50740-550Cidade UniversitariaRecifePernambucoBrazil

Ephedroid macrofossils have been widely documented in Cretaceous deposits,including numerous from the Lower Cretaceous Yixian Formation of NE ***,few ephedroid macrofossils have been reported from South ***,we describe a new plant of the family Ephedraceae,Arlenea delicata *** ***.,from the Lower Cretaceous Crato Formation of the Araripe Basin,Northeast Brazil,based on the vegetative and reproductive *** has the typical morphological characteristics of ephedroid plants,including fertile reproductive branches,opposite phyllotaxy,terminal female cones,a sympodial branching system,longitudinally striated internodes,and swollen *** new finding is unusual in having inner chlamydosperms subtended by two pairs of bracts,reproductive units connected to branches through swollen receptacles and a smooth seed *** new ephedroid taxon from the Crato Formation increases our understanding of plant diversity of this group during the Early ***,the general morphology(fleshy bracts and enlarged receptacles)of this new fossil discovery indicates that seeds of this plant may have been dispersed by animals such as pterosaurs(mainly the Tapejaridae)and birds(Enantiornithes and Ornituromorpha).If true,this would explain the cosmopolitan distribution of Ephedraceae in the Lower Cretaceous.

关键词： Early Cretaceous Gnetophytes Arlenea delicata Ephedrales Crato Formation

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Use of Silicon in Mitigating Ammonium Toxicity in Maize Plants

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American Journal of Plant Sciences 2015年第11期6卷 1780-1784页

作者： Cid Naudi Silva Campos Renato de Mello Prado Cassiano Garcia Roque antonio joao de lima neto Luiz Junior Pereira Marques Aridênia Peixoto Chaves Claudia Amaral Cruz department of Soils and Fertilizers Universidade Estadual Paulista/FCAV Jaboticabal Brazil department of Soils and Fertilizers Universidade Estadual Paulista/FCAV Jaboticabal Brazil Universidade Federal de Mato Grosso do Sul Chapad&atildeo do Sul Brazil Universidade Federal de Viçosa Vi&ccedilosa Brazil department of Applied Biology and Agriculture Universidade Estadual Paulista/FCAV Jaboticabal Brazil department of Plant Science Universidade Federal Rural do Semi-árido Mossoró Brazil M.Sc. in Agronomy Natal Brazil

Silicon is a beneficial element that can mitigate abiotic stresses, such as ammonium toxicity. The objective herein was to evaluate the effects of silicon (Si) on mitigating toxicity caused by excess ammonium in maize plants grown in nutrient solution. An experiment was conducted with maize plants (cultivar DKB 390 VT Pro II) grown in a greenhouse in pots (8 L) in a hydroponic system. The treatments were arranged in a 2 × 2 factorial, consisting of two ammonium concentrations (30 and 60 mmol·L-1) in the absence and presence of Si (10 mmol·L-1), arranged in a completely randomized design with six repetitions. At 28 days after applying the treatments the dry mass of shoots and roots was evaluated, along with accumulation of silicon and nitrogen in the shoots. The use of silicon resulted in increases in the studied variables, regardless of ammonium concentrations. Silicon reduced the effect of toxicity caused by ammonium excess in maize plants, resulting in greater growth and dry matter accumulation.

关键词： Zea mays L. Beneficial Element Nitrogen Nutritional Disorder Abiotic Stress

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Numerical Analysis of Heavy Oil-Water Flow and Leak detection in Vertical Pipeline

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Advances in Chemical Engineering and Science 2013年第1期3卷 9-15页

作者： joao Victor Nunes de Sousa Cristiane Holanda Sodré antonio Gilson Barbosa de lima Severino Rodrigues de Farias neto department of Mechanical Engineering Center of Sciences and TechnologyFederal University of Campina GrandeCampina GrandeBrazil department of Chemical Engineering Technology CenterFederal University of AlagoasMaceióBrazil department of Chemical Engineering Center of Sciences and TechnologyFederal University of Campina GrandeCampina GrandeBrazil

Pipeline is a conventional, efficient and economic way for oil transportations. The use of a good system for detecting and locating leaks in pipeline contribute significantly to operational safety and cost saving in petroleum industry. This paper aims to study the heavy oil-water flow in vertical ducts including leakage. A transient numerical analysis, using the ANSYS-CFX? 11.0 commercial software is performed. The mathematical modeling considers the effect of drag and gravitational forces between the phases and turbulent flow. Mass flow rate of the phases in the leaking orifice, the pressure drop as a function of the time and the velocity distributions are presented and discussed. We can conclude that volumetric fraction of phases and fluid mixture velocity affect pressure drop and mass flow rate at the leak hole.

关键词： Heavy Oil Multiphase Flow Leakage Numerical Simulation

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Imbalance in T-cell differentiation as a biomarker of chronic diabetic foot ulceration

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Cellular & Molecular Immunology 2019年第10期16卷 833-834页

作者： joao Moura joao Rodrigues Marta Gonçalves Claudia Amaral Margarida lima Eugenia Carvalho Center for Neuroscience and Cell Biology(CNC) University of CoimbraCoimbraPortugal INEB-Instituto Nacional de Engenharia Biomedica University of PortoPortoPortugal I3S-Instituto de Investigaçao e Inovaçao em Saude University of PortoPortoPortugal department of Hematology Hospital de Santo Antonio(HSA)Centro Hospitalar Universitario do Porto(CHUP)PortoPortugal Unidade Multidisciplinar de Investigaçao Biomedica(UMIB/ICBAS/UP) PortoPortugal department of Endocrinology Hospital de Santo Antonio(HSA)Centro Hospitalar Universitário do Porto(CHUP)PortoPortugal department of Geriatrics University of Arkansas for Medical Sciences(UAMS)and Arkansas Children’s Hospital Research Institute(ACHRI)Little RockArkansas 72202USA

Diabetes is a growing epidemic due to the systematic increase in overweight and obesity,and chronic diabetic foot ulcers(DFUs)are the most debilitating and costly complication of *** is still essential for DFU care,but early detection is limited because we do not have a good DFU ***,we report the preliminary results of a large longitudinal study to test the effectiveness of the use of T-cell phenotype and TCR repertoire diversity as DFU *** results show that the ratio of effector/naïve T-cells and the number of TCR expansions are valuable biomarkers of DFU prognosis.

关键词： diabetic chronic obesity

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Thermo-Hydrodynamics of Core-Annular Flow of Water, Heavy Oil and Air Using CFX

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Advances in Chemical Engineering and Science 2013年第4期3卷 37-45页

作者： antonio José Ferreira Gadelha Severino Rodrigues de Farias neto Ramdayal Swarnakar antonio Gilson Barbosa de lima department of Chemical Engineering Center of Science and Technology Federal University of Campina Grande

The transport of heavy and ultra-viscous oil employing the core-flow technique has been increasing recently, because it provides a greater reduction of the pressure drop during the flow. In this context, the effect of temperature and the presence of gas on the thermo-hydrodynamics of a three-phase water-heavy oil-air flow in a horizontal pipe under the influence of gravity and drag forces, using the commercial software ANSYS CFX?, have been evaluated. The standard κ ? ε turbulence model, the mixture model for heavy oil-water system and the particle model for heavy oil-gas and water-gas systems, were adopted. Results of velocity, volume fraction, pressure and temperature fields of the phases present along the pipe are presented and discussed. It has been found that the presence of the air phase and the variation in the temperature affect the behavior of annular flow and pressure drop.

关键词： Heavy Oil Three-Phase Flow Heat Numerical Simulation CFX

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Impacts of COVID-19 on children and adolescents:A systematic review analyzing its psychiatric effects

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World Journal of Psychiatry 2022年第11期12卷 1313-1322页

作者： Italo Wanderson de Moura Gabriel Danielly Gonçalves Sombra lima Jeully Pereira Pires Nélio Barreto Vieira Aloisio antonio Gomes de Matos Brasil Yara Talita Gomes Pereira Erika Galvao de Oliveira HildsonLeandro de Menezes Nadia Nara Rolim lima Alberto Olavo Advíncula Reis Ruan neto Pereira Alves Uanderson Pereira da Silva Jucier Gonçalves Junior Modesto Leite Rolim-neto School of Medicine Faculty of Medicine of Juazeiro do Norte-FMJ/IDOMEDJuazeiro do Norte 63040-360CearaBrazil School of Medicine Federal University of CaririBarbalha 63048-080CearaBrazil Mais Médicos Program Federal Government of Brazil-Ministry of HealthIguatu 63048-080CearaBrazil Julio Alves de Lira Hospital and Maternity Hospital HALHMBelo Jardim 55157-290PernambucoBrazil Nursing department Doctor Leão Sampaio University Center-UNILEAOJuazeiro do Norte 63.041-140CearaBrazil Julio Alves de Lira Hospital and Maternity Hospital JALHMBelo Jardim 55157-290PernambucoBrazil Graduate Program(Post-Doctoral)in Neuro-Psychiatry UFPERecife 50670-901PernambucoBrazil Postgraduate Program(Master’s and Doctorate)in Public Health University of São Paulo-USPSão Paulo 01246-904São PauloBrazil School of Education USPSão Paulo 05508-040São PauloBrazil Internal Medicine-Division of Rheumathology at Hospital das Clínicas São Paulo UniversitySão Paulo 01246-903São PauloBrazil

OBJECTIVE To summarize the most relevant data from a systematic review on the impact of COVID-19 on children and adolescents,particularly analyzing its psychiatric *** This review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses(PRISMA)guidelines and included experimental studies(randomized-individually or pooled-and non-randomized controlled trials),observational studies with a group for internal comparison(cohort studies-prospective and retrospective-and case-control)and qualitative studies in the period from 2021 to *** The search identified 325 articles;we removed 125 *** selected 200 manuscripts,chosen by title and selected *** excluded 50 records after screening titles and abstracts,as they did not meet the inclusion *** retrieved 150 records selected for a full *** excluded 90 text articles and we selected 25 records for the(n)***:Due to the short period of data collection,from 2021 to 2022,there is a possibility of lack of relevant studies related to the mental health care of children and *** addition,there is the possibility of publication bias,such as only significant findings being *** The impact of COVID-19 on the mental health of children and adolescents is of great concern to child and youth *** such as fear,anxiety,panic,depression,sleep and appetite disorders,as well as impairment in social interactions caused by psychic stress,are punctual markers of pain and psychic suffering,which have increasing impacts on the mental health panorama of children and adolescents globally,particularly in vulnerable and socially at-risk populations.

关键词： Child psychiatry Adolescent psychiatry Mental health COVID-19 Kids Teens

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Theoretical Evaluation of Two-Phase Flow in a Horizontal Duct with Leaks

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Advances in Chemical Engineering and Science 2013年第4期3卷 6-14页

作者： Morgana de Vasconcellos Araújo Severino Rodrigues de Farias neto antonio Gilson Barbosa de lima department of Chemical Engineering Center of Science and Technology Federal University of Campina Grande (UFCG department of Chemical Engineering Center of Science and Technology Federal University of Campina Grande (UFCG) department of Mechanical Engineering Center of Science and Technology Federal University of Campina Grande (UFCG) Campina Grande Brazil

The transport of oil and its derivates are done, mostly, by pipeline. The time to detect leaks has to be short for pre-venting big disasters in the nature and decreasing losses for industries. The techniques available for leak detection vary from visual inspection to the use of computational techniques such as mathematical modeling. This paper aims to study the fluid dynamics of two-phase flow (water-oil) in the pipe with leakage. The equations of the mass and momentum conservation are numerically solved by using the ANSYSCFX commercial code with the aid of a structured mesh of a horizontal pipe with three holes of leaks. The Eulerian-Eulerian model was adopted considering the oil as continuous phase and water as dispersed phase, and constant fluid properties. With profiles of pressure and volume fraction along the time in the pipe, the influence of leakage on the single-phase (oil) and two-phase (water-oil) was evaluated.

关键词： Two-Phase Flow Numerical Simulation Leakage Pipeline

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Rotational Oscillation Effect on Flow Characteristics of a Circular Cylinder at Low Reynolds Number

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World Journal of Mechanics 2015年第10期5卷 195-209页

作者： Alice Rosa da Silva Aristeu da Silveira-neto antonio Marcos Goncalves de lima School of Civil Engineering Federal University of UberlandiaUberlandiaBrazil School of Mechanical Engineering Federal University of UberlandiaBrazil

Two dimensional numerical simulations of flow around a rotationally oscillating circular cylinder were performed at Re = 1000. A wide range of forcing frequencies, fr, and three values of oscillation amplitudes, A, are considered. Different vortex shedding modes are observed for a fixed A at several values of fr, as well as for a fixed fr at different values of A. The 2C mode of vortex shedding was obtained in the present study. It is important to point out that this mode has not been observed by other investigators for rotationally oscillating case. Also, it is verified that this mechanism has great influence on the drag coefficient for high frequency values. Furthermore, the lift and pressure coefficients and the power spectra density are also analyzed.

关键词： Rotationally Oscillating Cylinder Vortex Shedding Modes Drag Coefficient

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Numerical Analysis of Turbulent Fluid Flow and Drag Coefficient for Optimizing the AUV Hull design

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Open Journal of Fluid Dynamics 2014年第3期4卷 263-277页

作者： joao Victor Nunes de Sousa antonio Roberto Lins de Macedo Wanderley Ferreira de Amorim Junior antonio Gilson Barbosa de lima department of Mechanical Engineering Center of Sciences and TechnologyFederal University of Campina GrandeCampina GrandeBrazil ARMTEC Technology in Robotics FortalezaBrazil

Autonomous Underwater Vehicles (AUVs) are robots able to perform tasks without human intervention (remote operators). Research and development of this class of vehicles has growing, due to the excellent characteristics of the AUVs to operate in different situations. Therefore, this study aims to analyze turbulent single fluid flow over different geometric configurations of an AUV hull, in order to obtain test geometry that generates lower drag force, which reduces the energy consumption of the vehicle, thereby increasing their autonomy during operation. In the numerical analysis was used ANSYS-CFX® 11.0 software, which is a powerful tool for solving problems involving fluid mechanics. Results of the velocity (vectors and streamlines), pressure distribution and drag coefficient are showed and analyzed. Optimum hull geometry was found. Lastly, a relationship between the geometric parameters analyzed and the drag coefficient was obtained.

关键词： AUV Hull Drag Coefficient Numerical Simulation

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Nonextensivity and Tsallis Entropy in DNA Fragmentation Patterns by Ionizing Radiation

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Journal of Modern Physics 2012年第6期3卷 431-437页

作者： Carlos antonio Marante Valdes Fidel antonio Castro Smirnov Oscar Rodriguez Hoyos joao Dias de Toledo Arruda-neto Centro de Estudios Avanzados de Cuba(CEAC) HavanaCuba Universidad de las Ciencias Informaticas(UCI) HavanaCuba Instituto Superior de Tecnologias y Ciencias Aplicadas(InSTEC) HavanaCuba Physics Institute University of Sao PauloSao PauloBrasil CEPESq/Uniitalo—Italy-Brazilian University Center Sao PauloBrazil

Nonextensive statistical mechanics as in Tsallis formalism was used in this study, along with the dynamical Hamiltonian rod-like DNA model and the maximum entropy criteria for Tsallis’ entropy, so as to obtain length distribution of plasmid fragments, after irradiation with very high doses, assuming that the system reaches metaequilibrium. By intensively working out the Grand Canonical Ensemble (used to take into account the variation of the number of base pairs) a simplified expression for Fragment Size Distribution Function (FSDF) was obtained. This expression is dependent on two parameters only, the Tsallis q value and the minimal length of the fragments. Results obtained from fittings to available experimental data were adequate and the characteristic behavior of the shortest fragments was clearly documented and reproduced by the model, a circumstance never verified from theoretical distributions. The results point to the existence of an entropy which characterizes fragmentation processes and depending only on the q entropic index.

关键词： Nonextensive Statistics Tsallis Entropy DNA Fragment Distribution Theoretical Distribution Fragment Minimum Length DNA Data Analysis

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