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A Pseudo-Stokes Mesh Motion Algorithm

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Advances in Applied Mathematics and Mechanics 2013年第2期5卷 194-211页

作者： Luciano goncalves Noleto Manuel N.D.Barcelos Jr. Antonio C.P.Brasil Jr. Universidade de Brasılia Faculdade de TecnologiaDepartamento de Engenharia MecanicaLaboratorio de Energia e Ambiente.Asa Norte.Brasılia-DFBrasil70.910-900 Universidade de Brasılia no Gama.Complexo de Educa¸c˜ao CulturaEsporte e Lazer.A rea Especial de Industria 1Setor LesteFaculdade Lote 1.Gama-DFBrasil72.444-210

This work presents a moving mesh methodology based on the solution of a pseudo flow *** mesh motion is modeled as a pseudo Stokes problem solved by an explicit finite element projection *** mesh quality requirements are satisfied by employing a null divergent velocity *** methodology is applied to triangular unstructured meshes and compared to well known approaches such as the ones based on diffusion and pseudo structural *** of the test cases is an airfoil with a fully meshed domain.A specific rotation velocity is imposed as the airfoil boundary *** other test is a set of two cylinders that move toward each other.A mesh quality criteria is employed to identify critically distorted elements and to evaluate the performance of each mesh motion *** results obtained for each test case show that the pseudo-flow methodology produces satisfactory meshes during the moving process.

关键词： Moving boundaries mesh motion strategy finite element projection methods

Prenatal radiographic evaluation of congenital transverse limb deficiencies:A scoping review

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World Journal of Orthopedics 2023年第3期14卷 155-165页

作者： Neeraj Vij Luis F goncalves Aaron Llanes Sean Youn Mohan V Belthur Department of Orthopedic Surgery Phoenix Children’s HospitalPhoenixAZ 85016United States Department of Radiology Phoenix Children's HospitalPhoenixAZ 85016United States Department of Orthopedics University of Arizona College of Medicine-PhoenixPhoenixAZ 85004United States

BACKGROUND Congenital transverse deficiencies are horizontal deficiencies of the long bones that occur with a reported incidence as high 0.38%.They can occur alone or represent a manifestation of a various clinical *** has tradi-tionally comprised of conventional radiography and prenatal imaging *** has been much advancement regarding prenatal imaging modalities to allow for early diagnosis and appropriate *** To summarize the current state of knowledge on congenital transverse limb deficiencies and to provide an update regarding the radiographic evaluation of congenital transverse limb *** This IRB-exempt scoping review followed the PRISMA-ScR checklist for scoping reviews *** search engines were searched for a total of 265 *** authors reviewed these during the screening *** these,51 studies were included in our *** magnetic resonance imaging(MRI),3D Ultrasound,and multidetector Computed tomography(CT)exist are emerging modalities that have the potential to improve *** Use of the appropriate classification system,three-dimensional ultrasonography with a maximum intensity projection,and appropriate use of prenatal MRI and prenatal CT can improve diagnosis and inter-provider *** Further scholarly efforts are required to develop improve standardized guidelines regarding the pre-natal radiographic evaluation of congenital limb deficiencies.

关键词： Terminal deficiencies Roentgenographic evaluation Pediatric skeletal deficiencies Early diagnosis Patient-centered care Prenatal imaging©The Author(s)2023.Published by Baishideng Publishing Group Inc.All rights reserved.

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一种磁流变阻尼器非参数模型

南京理工大学学报 2005年第5期29卷 560-564页

作者：侯保林王炅 F.D.goncalves 南京理工大学机械工程学院江苏南京210094 弗吉尼亚理工学院与州立大学机械工程系

基于Bingham塑性模型的基本思想,建立了一种简单的磁流变阻尼器非参数模型。该模型假设MR阻尼器的阻尼力由3项构成:气囊力、MR流体粘性阻尼力以及由于磁场作用所引起的阻尼力。气囊力被表示为活塞位移的线性函数。磁场引起的阻尼力则表... 详细信息

基于Bingham塑性模型的基本思想,建立了一种简单的磁流变阻尼器非参数模型。该模型假设MR阻尼器的阻尼力由3项构成:气囊力、MR流体粘性阻尼力以及由于磁场作用所引起的阻尼力。气囊力被表示为活塞位移的线性函数。磁场引起的阻尼力则表示为一个没有线性增长的磁滞环。理论与实验结果的比较指出:非参数模型数据与实验数据吻合较好。该文所提出的模型,具有各参数物理意义清晰,容易根据实验数据确定的特点,可以用来描述一类线性比较好的MR阻尼器。

关键词：磁流变阻尼器非参数模型 Bingham模型

Species diversity,population structure and regeneration of woody species in fallows and mature stands of tropical woodlands of southeast Angola

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Journal of Forestry Research 2018年第6期29卷 1569-1579页

作者： Francisco M.P.goncalves Rasmus Revermann Manuel J.Cachissapa Amandio L.Gomes Marcos P.M.Aidar Herbarium of Lubango ISCED HuilaSarmento Rodrigues Str.230 LubangoAngola Biocentre Klein Flottbek University of HamburgOhnhorststr.1822609 HamburgGermany Department of Biology Faculty of SciencesAgostinho Neto UniversityAv.4 de Fevereiro 714th FloorLuandaAngola Plant Physiology and Biochemistry Institute of BotanyCP 3005Sao PauloSP CEP:01061-970Brazil

This study in the dry tropical woodlands of SE Angola in Cuando-Cubango Province assessed the diversity and composition of woody species in fallows compared to those in mature woodlands. We assessed the population structure of the most harvested woody species by calculating size class distribution and evaluated their regeneration potential based on the density of saplings. The vegetation was surveyed in 20 plots of 20 × 50 m(1000 m2). In each plot, we measured the diameter at breast height(DBH) of all woody species with DBH ≥ 5 cm. The saplings were counted, identified and recorded; 718 individuals, corresponding to 34 species in 32 genera and 15 families were recorded. The size class distribution of target woody species showed three different patterns in fallows and mature woodlands. In general,most of the smaller diameter classes had more individuals than the larger ones did, showing that the regeneration may take place. However, in some diameter classes, the absence of larger stems indicated selective logging of larger trees. Few saplings were recorded in the fallows or mature woodlands; fire frequency and intensity is probably the main obstacle for seed germination and seedling survival rates in the studied area.

关键词： Baikiaea woodlands Fallows Mature woodlands Regeneration Woody species

The Ethics and the Meaning of Life among College Students

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International Journal of Clinical Medicine 2018年第4期9卷 221-233页

作者： Maria Helena de Agrela goncalves Jardim Geraldo Bezerra da Silva Junior Marcia Lucia Sousa Dias Alves Bruna raquel Figueira Ornelas de Gouveia Rita Baptista Silva School of Health University of MadeiraFunchalPortugal Visiting Researcher at UNIFOR by Capes/Funcap FortalezaBrazil Health Sciences Center University of FortalezaFortalezaBrazil Hospital of Dr.Nelio Mendonca MadeiraPortugal Abel Salazar Biomedical Sciences Institute University of PortoPortoPortugal 6School of Nursing of Sao Jose de ClunnyFunchalPortugal Nursing Sciences University of PortoPortoPortugal

The concern of the ethics and the meaning of life in young adults became universal and are present in all contexts of human life. Such universality is due to the development of modern rationality, to establish a relationship between the intrinsic theoretical dimensions (scientific) and practical dimensions (ethical), originated that are present in the own array of knowledge. This descriptive cross-sectional study, aims to identify the values of the ethical dimension and meaning of life defended by the college students of the Universities of Madeira, Portugal and Fortaleza, Brazil. The sample consists of 605 University students (Madeira = 225 and Fortaleza = 380), with an average age of 21 years and a standard deviation of 2. We used the questionnaire on values (adapted from the European Values Survey). Most of the young people referred to have a religion (60% wood and 78.4% stronghold), being the most Catholic, however, present in your frequency disinterest and, yet, in Brazil there is a greater diversity of religions. Supporting the intervention of religious institutions in situations of everyday life is accepted mostly by Brazilians, with the exception of politics (35.5%). On the other hand, the university students of the University of Madeira understand that Religious Institutions should only give their opinion on racial discrimination (76.6%). Believe in God (90.8% and 55.1% Stronghold) and Soul (80.3% and 66.4% Stronghold) are beliefs more referred to by college students. These results are intended to contribute in the field of research on ethical values and meaning of life in young people. This study contributes to future comparative research among university students and to developing strategic programs in education and health, increasing the success and excellence in the formation of a full citizenship, preventing the fanaticisms and the social discrimination that today devastate the collective globally.

关键词： Values Ethics Meaning of Life Young Adults College Students Questionnaire on Values (QSV)

A long-term annual water balance analysis of the Aracuai River Basin, Brazil

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Journal of Geographical Sciences 2010年第6期20卷 938-946页

作者： LEITE Mariangela Garcia Praca FUJACO Maria Augusta goncalves Federal University of Ouro Preto Geology Department Campos Morro do Cruzeiro 35400-000 Ouro PretoMinas Gerais Brazil

Semi-arid and arid areas exhibit great temporal variability in water availability. In some of these regions, a one- or two-day rainfall is followed by intervening dry periods of variable length. In recent decades, many rivers of the semi-arid portion of the Jequitinhonha Basin have been undergoing a progressive discharge reduction, mainly of their base flow, the Aracuai River is one of them. In order to understand this transformation, a long-term analysis of the annual water balance of the Aracuai River Basin was performed, the results of which are presented herein. Satellite images, hydrometeorological and river discharge data were analyzed; mean and variance tests were conducted to determine temporal homogeneity. Historical pluviometric data analysis shows no corresponding precipitation reduction and temperature undergoes only a slight increase in the same period. On the other hand, evaporation is extremely high, higher than precipitation during most of the year, leaving almost no water for infiltration （aquifer recharge） and runoff. Furthermore, the Aracuai head- waters of its tributaries are now occupied by a monoculture, Eucaliptus sp., used for paper production. Because of the decreased fluvial discharges, its lowlands, usually used for agriculture and pasture, are abandoned and partially eroded.

关键词： river discharge evaporation Jequitinhonha Basin

Transient decrease in sound tolerance levels following hearing deprivation in normal-hearing subjects

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Journal of Otology 2022年第4期17卷 232-238页

作者： Eleazar Grateron Tricia Scaglione Shriya Airen Stefania goncalves Sinay A.Ceballos David Baguley Juan A.Chiossone Fundacion Venezolana de Otología Clinical Research GroupVenezuela University of Miami Department of OtolaryngologyUSA University of Nottingham Hearing ScienceUK

Objective:To determine the circadian influence on sound sensitivity produced by temporal hearing deprivation in healthy normal human ***:Participants underwent bilateral earplugging before completion of anthropometry,the author's developed questionnaire,the Hamilton Anxiety and Depression Inventory,pure tone audiometry(PTA),stapedial reflex thresholds(SRT),distortion products otoacoustic emissions input/output(DPOAE-I/O),and uncomfortable loudness levels(ULLs).Afterward,the participants were randomly divided into group A,starting at 8:00 *** finishing at 8:00 p.m.,and group B,starting at 4:00 *** ending at 4:00 *** cortisol levels and audiological test results were obtained at the beginning and end of the session and 24-h free urinary cortisol levels were *** sample:Thirty healthy ***:PTA was 2.68 and 3.33 dB HL in groups A and B,respectively,with no statistical difference between *** were significantly lower in group A compared to group B,with an average of 8.1 dB SPL in group A and 3.3 dB SPL in group B(p<0.0001).A SRT shift was observed in group A,with no difference in group B,and a night shift in DPOAE-I/O in group ***:Reduced loudness tolerance is demonstrated during daytime hearing deprivation in contrast to nighttime;this may be due to increased central gain in the awake cortex.

关键词： Hyperacusis Central gain Hearing deprivation

Analysis of the Tropism and Anti-Bacterial Potential of a Type of Clay

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Open Journal of Medical Microbiology 2014年第2期4卷 140-145页

作者： Cassio Ilan Soares Medeiros Erica Renata Nogueira Sa Juliana raquel de Morais Santos Oliveira Lis Magalhaes Geraldo goncalves de Almeida Filho Hilzeth de Luna Freire Pessoa Graduate Student in Biomedicine Integrated College of PatosParaibaBrazil ICU Specialist Physiotherapist Integrated College of PatosParaibaBrazil Medical Student College of Santa MariaCajazeiras ParaibaBrazil MSc.in Natural and Synthetic Bioactive Products Federal University of ParaibaUFPBJoao PessoaBrazil

Natural clays have been used by man in infections of bacterial etiology, since the first historical registers. Our attention turned to a red-colored clay, known in the northeast of Brazil as “barro de louça” (dish clay). These clays and other natural earth materials seem interesting to us, as the blockage of the liberation of toxins or inactivation, may be related to the interruption of infection cycles in the skin and mucous membranes. The adsorptive and absorptive properties of the mineral clays are well documented in the cure process of skin and gastrointestinal diseases. Susceptibility and bacterial tropism tests were carried out. The results were analyzed and interpreted according to the conventional microbiological protocol. The bacterial strains, Staphylococcus aureus, Escherichia coli e Pseudomonas aeruginosa, did not present a susceptibility profile to an isotonic solution of clay, but there was an increase of the bacterial tropism as the concentration of the isotonic solution was increased, being the minimal observed concentration of 100 mg/mL. Our aim is to document a type of red clay from the northeast of Brazil with possible attraction properties (Tropism) to bacteria and their toxins.

关键词： Red Clay Bacterial Tropism Bacterial Resistance

Mitomycin C in pterygium treatment

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International Journal of Ophthalmology(English edition) 2016年第3期9卷 465-468页

作者： Thiago goncalves dos Santos Martins Ana Luiza Fontes de A zevedo Costa Milton Ruiz Alves Roger Chammas Paulo Schor Federal University of Sao Paulo (UNIFESP) Sao Paulo 04023062 Brazil University of Sao Paulo (USP) Sao Paulo 01246903 Brazil

Pterygium is a benign lesion usually growing from the nasal side of the conjunctiva onto the *** cases of pterygium does not cause problem or requires specific *** exact cause of pterygium is not clear yet,but some factors are pointed as causes,being the most important the long-term ultraviolet ray *** surgery is usually considered when there are symptoms that do not respond to conservative *** is the main complication of the surgery,and much has been done to avoid *** C（MMC） has been used as a fibroblast proliferation inhibitor during the surgery to reduce the chance of recurrence of the *** review describes the use of MMC as an adjunctive,the optimal dosage,the duration of administration of MMC and possible complications,when used during,after and before the *** studies suggest that increased exposure（dose or duration） of MMC is associated with a lower recurrence,but with higher risks of complications.

关键词： mitomycin C pterygium surgery recurrence rate