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Effect of thermo-mechanical conditions during constrained friction processing on the particle refinement of AM50 Mg-alloy phases

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Journal of Magnesium and Alloys 2024年第6期12卷 2298-2311页

作者： camila Caroline de Castro AndréMartins Neves Benjamin Klusemann Helmholtz-Zentrum Hereon Institute of Material and Process DesignSolid-State Materials Processing21502 GeesthachtGermany Helmholtz-Zentrum Hereon Institute of Hydrogen TechnologySystem Design for Mobility21502 GeesthachtGermany Helmut Schmidt University/University of the German Federal Armed Forces Hamburg Department of Mechanical and Civil Engineering22043 HamburgGermany Leuphana University Lüneburg Institute for Production Technology and Systems21335 LüneburgGermany

Constrained Friction Processing(CFP)is a novel solid-state processing technique suitable for lightweight materials,such Mg-and *** technique enables grain size refinement to fine or even ultrafine *** this study,the effect of CFP on the microstructural refinement of AM50 rods is investigated in terms of particle size and morphology of the eutectic and secondary phases originally present in the base material,in particular the eutecticβ-Mg_(17)Al_(12)and Al-Mn *** that purpose,as-cast and solution heat-treated base material and processed samples were *** Al8Mn5 intermetallic phase was identified as the main secondary phase present in all samples before and after the processing.A notorious refinement of these particles was observed,starting from particles with an average equivalent length of a few micrometers to around 560 nm after the *** refinement of the secondary phase refinement is attributed to a mechanism analogous to the attrition comminution,where the combination of temperature increase and shearing of the material enables the continuous breaking of the brittle intermetallic particles into smaller *** for the eutectic phase,the results indicate the presence of the partially divorcedβ-Mg_(17)Al_(12)particles exclusively in the as-cast base material,indicating that no further phase transformations regarding the eutectic phase,such as dynamic precipitation,occurred after the *** the case of the processed as-cast material analyzed after the CFP,the thermal energy generated during the processing led to temperature values above the solvus limit of the eutectic phase,which associated with the mechanical breakage of the particles,enabled the complete dissolution of this ***,CFP was successfully demonstrated to promote an extensive microstructure refinement in multiple aspects,in terms of grain sizes of theα-Mg phase and presence and morphology of the Al-Mn and eutecticβ-Mg_(17)Al_(12).

关键词： Constrained friction processing AM50 Refill friction stir spot welding Extrusion β-Mg_(17)Al_(12) Al-Mn phases

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Combining neural progenitor cell transplant and rehabilitation for enhanced recovery after cervical spinal cord injury

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Neural Regeneration Research 2024年第7期19卷 1433-1434页

作者： camila M.Freria Paul Lu Department of Neurosciences University of CaliforniaSan DiegoLa JollaCAUSA Veterans Administration San Diego Healthcare System San DiegoCAUSA

Efforts to promote recovery of function after human spinal cord injury(SCI) will likely require interventions to rgeting the corticospinal tract(CST) motor system:the most important pathway for voluntary motor control in *** system has historically been the most refractory to regenerative efforts after *** "nonregeneration" of the CST changed when robust regeneration of the CST into spared tissue was demonstrated by the inactivation of phosphatase and tensin homolog and delivery of inosine.

关键词： cervical progenitor injury

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Lymphedema in the Mastectomy Postoperative Period:An Integrative Literature Review

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Advances in Breast Cancer Research 2013年第4期2卷 154-160页

作者： Ana Fátima Carvalho Fernandes Glécya Oliveira Vidal camila brasil moreira Tiago Barreto de Castro e Silva Paula Natasha Rodrigues Valentim Míria Conceicao Lavinas Santos Department of Nursing Federal University of CearáFortalezaBrazil

Aims and Objectives: To analyze the evidence available in the literature on the stages during which upper limb lymphedema after mastectomy occurs. Background: Among the adverse effects of breast cancer treatment, lymphedema is the most prevalent. Design: Integrative literature review. Methods: The Latin American and Caribbean Literature on Health Sciences (Literatura Latino-Americana e do Caribe em Ciências da Saúde—LILACS), PubMed, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases were used to select the pertinent studies. The identification data for these studies were summarized, and their methodological features and results were extracted. Results: Regarding the time elapsed since surgery, the highest prevalence of lymphedema corresponded to the late postoperative period, and regarding its severity, mild lymphedema was the most prevalent form. The prevalence was also the highest among the women who were subjected to radical mastectomy and radiotherapy. Conclusions: Many women who are undergoing treatment for breast cancer use strategies for the prevention and control of lymphedema of the upper limb following mastectomy. Relevance to Clinical Practice: The findings of the present study might inform future studies aiming to assess strategies that can be started in the immediate and late postoperative stages to detect lymphedema early and prevent the increase of its prevalence during the late postoperative period after mastectomy.

关键词： Breast Cancer Post-Operative Care Nursing

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Stress tensors and quantification of fracture patterns to analyze connectivity and potential fluid flow in a mesa landform of the Northern Andes

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Journal of Mountain Science 2024年第1期21卷 271-291页

作者： GARCÍA-ARIAS Sergio VELANDIA Francisco ALVAREZ Angélica SANABRIA-GÓMEZ JoséD TARAZONA Yessenia VARGAS María camila Escuela de Geología Universidad Industrial de SantanderCra.27 Calle 9BucaramangaColombia Escuela de Física Universidad Industrial de SantanderCra.27 Calle 9BucaramangaColombia

This work applies stress tensors inversions and quantification of fracture patterns along the Mesa de Los Santos, in the Eastern Cordillera of Colombia, to better understand the potential fluid flow. It thus contributes to the conceptual hydrogeological model. The area was subdivided into three blocks, separated by the NW Potreros and the Los Santos faults, having minor inner faults of different orientations. This separation facilitates the analysis of the fractures measured in the field, which in general show high dip angles and a conjugate geometry in the northern block, tension fractures(Mode I) in the central block, and a random distribution in the southwestern block. WinTensor treatment of slickensides yielded a maximum horizontal stress(SHmax) of 111o, which coincides with the WNW-ESE tensor observed from the conjugate and tension joints. We then used Frac Pa Q to generate interpolation maps of fracture intensity and density. The maps show the highest values in the central block and the lowest in the northern block,where the precipitation is higher, causing intensive rock weathering and homogenization of the fracture planes. Although the highest values of connectivity by line are found to the south of the mesa, we suggest the possibility of greater flow from the recharge zone(NE) along bedding planes and open NW-SE fractures.

关键词： Mesa de Los Santos Colombia Win-Tensor FracPaQ Strike-slip faults Fractured aquifers

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Chromatin condensation but not DNA integrity of pig sperm is greater in the sperm-rich fraction

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Journal of Animal Science and Biotechnology 2024年第1期15卷 171-181页

作者： Estel Viñolas-Vergés Jordi Ribas-Maynou Isabel Barranco camila Peres Rubio Sergi Bonet Jordi Roca Marc Yeste Unit of Cell Biology Department of BiologyFaculty of SciencesUniversity of GironaGironaSpain Biotechnology of Animal and Human Reproduction(TechnoSperm) Institute of Food and Agricultural TechnologyUniversity of GironaGironaSpain Department of Medicine and Animal Surgery Faculty of Veterinary ScienceUniversity of MurciaMurciaSpain Catalan Institution for Research and Advanced Studies(ICREA) S08010 BarcelonaSpain

Background Protamination and condensation of sperm chromatin as well as DNA integrity play an essential role during fertilization and embryo *** some mammals,like pigs,ejaculates are emitted in three separate fractions:pre-sperm,sperm-rich(SRF)and post sperm-rich(PSRF).These fractions are known to vary in volume,sperm concentration and quality,as well as in the origin and composition of seminal plasma(SP),with differences being also observed within the SRF ***,whether disparities in the DNA integrity and chromatin condensation and pro-tamination of their sperm exist has not been *** This study determined chromatin protamination(Chromomycin A3 test,CMA_(3)),condensation(Dibromobi-mane test,DBB),and DNA integrity(Comet assay)in the pig sperm contained in the first 10 m L of the SRF(SRF-P1),the remaining portion of the sperm-rich fraction(SRF-P2),and the post sperm-rich fraction(PSRF).While chromatin protamination was found to be similar between the different ejaculate fractions(P>0.05),chromatin condensation was seen to be greater in SRF-P1 and SRF-P2 than in the PSRF(P=0.018 and P=0.004,respectively).Regarding DNA integrity,no differences between fractions were observed(P>0.05).As the SRF-P1 has the highest sperm concentra-tion and ejaculate fractions are known to differ in antioxidant composition,the oxidative stress index(OSi)in SP,calcu-lated as total oxidant activity divided by total antioxidant capacity,was tested and confirmed to be higher in the SRF-P1 than in SRF-P2 and PSRF(0.42±0.06 vs.0.23±0.09 and 0.08±0.00,respectively;P<0.01);this index,in addition,was observed to be correlated to the sperm concentration of each fraction(Rs=0.973;P<0.001).Conclusion While sperm DNA integrity was not found to differ between ejaculate fractions,SRF-P1 and SRF-P2 were observed to exhibit greater chromatin condensation than the *** could be related to the OSi of each fraction.

关键词： Chromatin Condensation DNA integrity Ejaculate fractions Pig Protamination Sperm

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Construction and Validation of an Educational Technology for Mammary Health Promotion

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Open Journal of Nursing 2015年第11期5卷 965-970页

作者： Izabel Cristina Falcao Juvenal Barbosa Ana Fatima Carvalho Fernandes camila brasil moreira Míria Conceicao Lavinas Santos Altamira Mendonca Félix Gomes Ivna Silva Andrade Anna Paula Sousa da Silva Department of Nursing Federal University of PiauíFlorianoPiauíBrazil

Mammary health is issue faced by public health nurses and the science follows new ways into this thematic area of learning course wares. The purpose of this study was to construct and to validate a distance course for mammary health promotion for nurses. Methodological proposal has been composed of five stages: 1) analysis and planning, 2) modeling, 3) implementation, 4) evaluation and maintenance and 5) distribution. A total of nine experts as research population were consulted who were expert judges of nursing, pedagogy and web designer, three of each specific area, which were included in the study. The variables that had concordance index of 50% were: graphic designer pages favors learning, the user has easy navigation, the learning of the student experience, the environment provides interdisciplinary, content is built on process rather than there is a unique sequence, allows access to the available environment and holds a discussion on the subject. The distance learning course is intended to broaden and to enrich the living spaces and construct their own knowledge, favors interactivity, communication, autonomy and cooperation between the participants and provides access to educational technologies.

关键词： Distance Education Educational Technology Breast Neoplasms Health Promotion Nursing

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Simulated rainfall in Brazil:An alternative for assesment of soil surface processes and an opportunity for technological development

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International Soil and Water Conservation Research 2024年第1期12卷 29-42页

作者： camila Calazans da Silva Luz Wilk Sampaio de Almeida Adilson Pacheco de Souza Nivaldo Schultz Jamil Alexandre Ayach Anache Daniel Fonseca de Carvalho Postgraduate Program in Agronomy-Soil Sciences Federal Rural University of Rio de JaneiroSeropédicaRJBrazil Agronomy Department Federal Institute of EducationScience and Technology of RondôniaAriquemesROBrazil Federal University of Mato Grosso SinopMTBrazil Federal Rural University of Rio de Janeiro SeropédicaRJBrazil Federal University of Mato Grosso do Sul Campo GrandeMSBrazil

Rainfall simulators(RS)have been used,above all,to evaluate hydrological processes related to soil water infiltration,surface runoff and soil *** allow repeatability of rain application with different precipitation intensities in field and/or laboratory conditions and should produce events with physical characteristics similar to natural *** this manuscript,we carried out a bibliometric and scientometric analysis of studies with simulated rainfall in Brazil to assess the temporal evolution of publications,the main topics addressed and the degree of technological development of the *** searched for the terms“rainfall simulator”OR“simulated rainfall”AND“Brazil”in the Scopus,Web of Science,SciELO and Google Scholar *** found 143 articles published in the last 37 years(1985-2022).Our findings indicate that the main research areas covered in papers are soil erosion(57.34%),soil water infiltration(24.47%),nutrient losses(9.8%)and RS development and calibration/assessment(8.39%).In recent years,the number of published papers in international high-impact factor journals has *** of the papers(49.65%)refer to studies carried out by institutions located in the south and southeast regions of ***,there is a large gap of studies on simulated rainfall in other regions of Brazil,where important biomes such as the Cerrado,Amazon,Caatinga,and their transitions are *** study informs research priorities on soil erosion under simulated rainfall and provides a bibliographic database that can assist in more detailed future analyses.

关键词： Rainfall simulator Soil and water losses Soil water infiltration Bibliometrics Scientific review

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可再生能源发展的影响评价：加拿大西部风能影响及缓解措施的分析（上）

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环境影响评价 2024年第4期 97-102页

作者： camila Martins Godinho Bram Noble Greg Poelzer Kevin Hanna 吴成志姚胜东萨斯喀彻温大学地理与规划系萨斯喀彻温大学环境与可持续发展学院不列颠哥伦比亚大学环境评估研究中心三捷环境工程咨询(杭州)有限公司

影响评价在全球能源转型中发挥重要作用，为识别与管理可再生能源项目影响提供理论知识。然而，对于影响评价工作在可再生能源开发方面的实际成效一直存在争议。本文基于对加拿大风能发展影响评价应用的内容分析，探讨分析了风能项目中... 详细信息

影响评价在全球能源转型中发挥重要作用，为识别与管理可再生能源项目影响提供理论知识。然而，对于影响评价工作在可再生能源开发方面的实际成效一直存在争议。本文基于对加拿大风能发展影响评价应用的内容分析，探讨分析了风能项目中通常评估的环境和社会影响以及提出的缓解方案。结果显示，包括缓解措施在内，生物物理影响与社会影响之间存在着相当大的不平衡。相比于社会影响，影响评价在生物物理影响方面包含更多的解决办法，其影响与缓解办法的比率为1∶4.3，而社会影响方面仅为1∶1.3。大多数缓解办法侧重于最大限度地减少影响，其次是避免影响，而在时间、实施方法和责任方面描述并不清晰。尽管存在共同影响，但跨项目的缓解措施过于模糊或不精确，无法支持评估中的可转移实践，无法提高效率。改进对可再生能源项目影响和缓解方案的理解，并不断在项目中积累经验，是推进影响评价在向可再生能源过渡中发挥作用的基础。

关键词：影响评价缓解层级风能可再生能源能源转型

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Analysis of Nursing Care Concept: Perspective of the Person Submitted to Care

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Open Journal of Nursing 2016年第6期6卷 491-496页

作者： camila brasil moreira Ana Fátima Carvalho Fernandes Míria Conceição Lavinas Santos Altamira Mendonça Félix Gomes Carla Monique Lopes Mourão Rosy Denyse Pinheiro de Oliveira Angelica Isabely de Morais Almeida Suzy Ramos Rocha Cláudia Rayanna Silva Mendes Sadrine Maria Eufrasino de Pinho Marinna Maria de Andrade Costa Jordana Prado Benevides Caroline Batista de Queiroz Aquino Iarlla Silva Ferreira Raquel Vilanova Araujo Department of Nursing Federal University of Ceará Fortaleza Brazil

This study aimed to analyze the concept of nursing care to patients with breast cancer on chemotherapy treatment, according to the perspective of the person submitted to care. The study followed the conceptual analysis methodology proposed by Walker and Avant according to Waldow, and it was developed through consultation to SCOPUS and CINAHL databases. The selection was carried out by inclusion and exclusion criteria, constituting a sample of 7 articles. There have been identified the main uses of the risk concept, defining attributes, antecedents and consequences of the concept. The evaluation of the concept and nursing care to breast cancer patient on chemotherapy treatment allowed a broader understanding of the phenomenon, with emphasis on the skills and competencies in nursing care dispensed to woman on chemotherapy treatment for breast cancer.

关键词： Nursing Breast Neoplasms Analysis Research Nursing Care Chemotherapy

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Metabolic disease and the liver: A review

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World Journal of Hepatology 2024年第1期16卷 33-40页

作者： Márcia Vargas Sheila de Castro Cardoso Toniasso Patricia G Riedel camila Pereira Baldin Francielle Lopes dos Reis Robson Martins Pereira Maria Carlota Borba Brum Dvora Joveleviths Mario Reis Alvares-da-Silva Program of Graduate Science in Gastroenterology and Hepatology Federal University of Rio Grande do SulPorto Alegre 90040-060Rio Grande do SulBrazil School of Medicine Federal University of Rio Grande do SulPorto Alegre 90040-060Brazil Program of Graduate Science in Gastroenterology and Hepatology Clinicas Hospital of Porto AlegrePorto Alegre 90410000Brazil Medicine Faculty Federal University of Rio Grande do Sul Federal University of Rio Grande do SulPorto Alegre 90040-060Brazil Division of Gastroenterology and Hepatology Clinicas Hospital of Porto AlegrePorto Alegre 90035007Brazil

Metabolic dysfunction-associated steatotic liver disease(MASLD)is the most common liver disease worldwide,with an estimated prevalence of 31%in Latin *** presence of metabolic comorbidities coexisting with liver disease varies substantially among *** is acknowledged that obesity is boosting the type 2 diabetes mellitus“epidemic,”and both conditions are significant contributors to the increasing number of patients with *** steatohepatitis represents a condition of chronic liver inflammation and is considered the most severe form of *** diagnosis is based on the presence of steatosis,noninvasive scores and altered liver *** scores of liver fibrosis,such as serum biomarkers,which should be used in primary care to rule out advanced fibrosis,are simple,inexpensive,and widely ***,guidelines from international hepatology societies recommend using noninvasive strategies to simplify case finding and management of high-risk patients with MASLD in clinical ***,there is no definite pharmacological treatment for the *** public health policies to treat patients with risk factors for MASLD prevention is essential.

关键词： Nonalcoholic fatty liver disease Primary care Metabolic risk Liver Metabolism

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