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Concerns about the application of resistance exercise with blood-flow restriction and thrombosis risk in hemodialysis patients

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Journal of Sport and Health Science 2024年第4期13卷 548-558,F0003页

作者： Hugo de Luca Correa Lysleine Alves Deus Dahan da Cunha Nascimento Nicholas Rolnick Rodrigo Vanerson Passos Neves Andrea Lucena Reis Thais Branquinho de Araujo Carmen Tzanno-Martins Fernanda Silveira Tavares Luiz Sinesio Silva Neto Claudio Avelino Rodrigues santos Paolo Lucas Rodrigues-Silva Fernando Honorato Souza Vitoria Marra da Motta Vilalva Mestrinho Rafael Lavarini dos santos rosangela Vieira Andrade Jonato Prestes thiago dos santos rosa Post-graduate Program of Physical Education Catholic University of BrasıliaBrasılia 71966-700Brazil The Human Performance Mechanic Lehman CollegeNew YorkNY 10011USA Clinical Group Home Dialysis Center and RenalClass Sao Paulo 01239-040Brazil Department of Medicine Catholic University of BrasıliaBrasılia 71966-700Brazil Faculty of Medicine Federal University of TocantinsTocantins 77001-090Brazil Embrapa Genetic Resources and Biotechnology Brasılia 70770-917Brazil Graduate Program of Genomic Sciences and Biotechnology Brasılia 71966-700Brazil

Background:Hemodialysis(HD) per se is a risk factor for *** the growing body of evidence on blood-flow restriction(BFR) exercise in HD patients,identification of possible risk factors related to the prothrombotic agent D-dimer is required for the safety and feasibility of this training *** aim of the present study was to identify risk factors associated with higher D-dimer levels and to determine the acute effect of resistance exercise(RE) with BFR on this ***:Two hundred and six HD patients volunteered for this study(all with a glomerular filtration rate of 70 years old),and HD ***,RE+BFR significantly increases D-dimer after 4 *** with borderline baseline D-dimer levels(400-490 ng/mL) displayed increased risk of elevating D-dimer over the normal range(≥500 ng/mL).Conclusion:These results identified factors associated with a heightened prothrombotic state and may assist in the screening process for HD patients who wish to undergo RE+BFR.D-dimer and/or other fibrinolysis factors should be assessed at baseline and throughout the protocol as a precautionary measure to maximize safety during RE+BFR.

关键词： Blood-flow restriction Chronic kidney disease Coagulation Hemodialysis Vascular occlusion exercises

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Response to Commentary by Dr. Matthew J. Clarkson on

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Journal of Sport and Health Science 2024年第5期13卷 670-671页

作者： Hugo de Luca Corrêa Lysleine Alves Deus Dahan da Cunha Nascimento Nicholas Rolnick Rodrigo Vanerson Passos Neves Andrea Lucena Reis Thais Branquinho de Araújo Carmen Tzanno-Martins Fernanda Silveira Tavares Luiz Sinésio Silva Neto Cláudio Avelino Rodrigues santos Paolo Lucas Rodrigues-Silva Fernando Honorato Souza Vitória Marra da Motta Vilalva Mestrinho Rafael Lavarini dos santos rosangela Vieira Andrade Jonato Prestes thiago dos santos rosa Post-graduate Program of Physical Education Catholic University of BrasıliaBrasılia 71966-700Brazil The Human Performance Mechanic Lehman CollegeNew YorkNY 10011USA Clinical Group Home Dialysis Center and RenalClass Sao Paulo 01239-040Brazil Department of Medicine Catholic University of BrasıliaBrasılia 71966-700Brazil Faculty of Medicine Federal University of TocantinsTocantins 77001-090Brazil Embrapa Genetic Resources and Biotechnology Brasılia 70770-917Brazil g Graduate Program of Genomic Sciences and Biotechnology Brasılia 71966-700Brazil

Dear editor:We sincerely thank Matthew *** for his insightful commentary1 on our recent publication in the Journal of Sport and Health Science.2 Clarkson's pioneering work in the development and application of blood flow restriction (BFR) exercise protocols has undeniably laid the groundwork for subsequent investigations in this field,including our own.(3-6)His commentary not only highlights the relevance and timeliness of our study but also offers valuable perspectives on refining safety considerations for intradialytic BFR exercise among hemodialysis patients.

关键词： patients application flow

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Variations in Atmospheric Electromagnetism and Their Impacts on Mortality Rates in the Southern and Northeastern Regions of Brazil

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Atmospheric and Climate Sciences 2025年第1期15卷 248-274页

作者： Rose Ane Pereira de Freitas Julio Renato Quevedo Marques Reynerth Pereira da Costa Júlia Alves Menezes Isabela de Brito Ferreira Rhavena Barbosa dos santos Ulisses Eugenio Cavalcanti Confalonieri Department of Meteorology Federal University of Pelotas (UFPel) Pelotas Brazil National Observatory (ON) Ministry of Science Rio de Janeiro Brazil Laboratory of Analysis and Development of Indicators for Sustainability (LADIS) Division of Impacts Adaptation and Vulnerability (DIIAV) National Institute for Space Research (INPE) So Jos dos Campos Brazil Department of Parasitology Institute of Biological Sciences Federal University of Minas Gerais (UFMG) Belo Horizonte Brazil Department of Nursing and Medicine Federal University of Viosa (UFV) Viosa Brazil Department of Food Technology Federal Fluminense University (UFF) and Rene Rachou Institute Fiocruz Belo Horizonte Brazil

This study examines the relationship between geomagnetic indices and mortality rates from specific diseases in the Northeast (NE) and Southern (S) regions of Brazil from 1996 to 2020. Solar activity data, including the Ap and Sudden Ionospheric Disturbance (SID) indices, were sourced from the World Data Center, while mortality data were obtained from the Mortality Information System (SIM-DATASUS). Acute Myocardial Infarction (AMI) emerged as the leading cause of mortality, with average death rates of 60.4, 56.8, and 58.3 deaths per 100,000 inhabitants in Pernambuco (PE), Rio Grande do Sul (RS), and Paraná (PR), respectively. Temporal analysis revealed a consistent upward trend in AMI mortality across most states, except for Santa Catarina (SC). Seasonal patterns identified through Principal Component Analysis (PCA) demonstrated that geomagnetic and climatic indices influenced mortality differently across regions and seasons. The Ap geomagnetic index was strongly correlated with higher AMI mortality rates during summer, while the SID index showed greater relevance during winter. A dipole phenomenon was observed, with AMI deaths increasing alongside geomagnetic activity in the S region but showing an inverse relationship in the NE region. These findings highlight the significant influence of geomagnetic variations on public health, particularly cardiovascular mortality. The study underscores the need for further research into the biological mechanisms underlying these associations and recommends the development of early warning systems and targeted preventive measures to mitigate the potential health impacts of geomagnetic disturbances, especially for vulnerable populations.

关键词： Solar Activity Cardiovascular Mortality Geomagnetic Disturbances

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Cannabinoid pharmacology and its therapeutic uses in Alzheimer’s disease

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Neural Regeneration Research 2021年第5期16卷 990-991页

作者： Kadja Luana Chagas Monteiro Marcone Gomes dos santos Alcântara thiago Mendonça de Aquino Edeildo Ferreira da Silva-Júnior Laboratory of Medicinal Chemistry Institute of Pharmaceutical SciencesFederal University of AlagoasMaceióBrazil Chemistry and Biotechnology Institute Federal University of AlagoasMaceióBrazil

Alzheimer’s disease(AD)is a chronic neurodegenerative disease,which is difficult to diagnose in its early *** is associated with aging and consists of a decline in cognitive functions,memory,and other mental *** pathophysiological markers are associated with AD progression and worsening,such as the deposition and intracellular accumulation of senile plaques containing amyloid-β(Aβ)peptides,and tau protein hyperphosphorylation,leading to the formation of neurofibrillary tangles.

关键词： Alzheimer Aβ tau

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Capacitorless Solid-state Power Filter for Single-phase DC-AC Converters

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CES Transactions on Electrical Machines and Systems 2024年第3期8卷 367-377页

作者： Haitham Kanakri Euzeli C.dos santos Purdue University Electrical and Computer Engineering DepartmentIndianapolisIN46202 USA

Converters rely on passive filtering as a crucial element due to the high-frequency operational characteristics of power *** filtering methods involve a dual inductor-capacitor(LC)cell or an inductor-capacitor-inductor(LCL)***,capacitors are susceptible to wear-out mechanisms and failure ***,the necessity for monitoring and regular replacement adds to an elevated cost of ownership for such *** utilization of an active output power filter can be used to diminish the dimensions of the LC filter and the electrolytic dc-link capacitor,even though the inclusion of capacitors remains an indispensable part of the *** paper introduces capacitorless solid-state power filter(SSPF)for single-phase dc-ac *** proposed configuration is capable of generating a sinusoidal ac voltage without relying on *** proposed filter,composed of a planar transformer and an H-bridge converter operating at high frequency,injects voltage harmonics to attain a sinusoidal output *** design parameters of the planar transformer are incorporated,and the impact of magnetizing and leakage inductances on the operation of the SSPF is *** analysis,supported by simulation and experimental results,are provided for a design example for a single-phase *** total harmonic distortion observed in the output voltage is well below the IEEE 519 *** system operation is experimentally tested under both steady-state and dynamic conditions.A comparison with existing technology is presented,demonstrating that the proposed topology reduces the passive components used for filtering.

关键词： Solid-state power filter(SSPF) Capacitorless topology Active output power filter(AOF) Planar transformer Electrolytic capacitor Lifetime Wear-out mechanisms

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Pharmacological therapy used in the elimination of Helicobacter pylori infection:A review

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World Journal of Gastroenterology 2015年第1期21卷 139-154页

作者： Ariolana A dos santos Adriana A Carvalho Department of Pharmacy Federal University of SergipeCampus Lagarto49400-00 LagartoSergipeBrazil

The optimal therapy for Helicobacter pylori(***) infection should combine a high cure rate and a short treatment duration with a favorable side-effect profile and should maintain a low *** strategies have been proposed to increase the *** eradication rate,including the extension of the treatment duration to 14 d,the use of a four-drug regimen(quadruple,sequential,and concomitant treatments),and the use of novel antibiotics,such as ***,triple therapy remains the most widely accepted firstline treatment regimen in Brazil and the United Statesand throughout *** this therapy is limited by resistance to clarithromycin,other therapeutic regimens have been investigated *** review describes the current literature involving studies directly comparing these different therapies and their efficacies.

关键词： Clarithromycin resistant Helicobacter pylori Pepti

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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

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Spatial-temporal distribution of fatal yellowing in different oil palm genetic materials in eastern amazon

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Information Processing in Agriculture 2022年第3期9卷 365-377页

作者： Bruno Borella Anhe Artur Vinicius Ferreira dos santos thiago Alan Ferreira da Silva Lana Leticia Barbosa de Carvalho Paulo Roberto Silva Farias Universidade Federal Rural da Amazonia Geoestatistics Department66.077-830 BelemBrazil Universidade Federal Rural da Amazonia Entomology Department66.077-830 BelemBrazil

Oil palm (Elaeis guineensis Jacq.) is one of the agricultural crops with the greatest potentialfor vegetable oil production in Brazil. However, a disease of unknown etiology popularlyknown as Fatal Yellowin (FY) has caused damage to Brazilian farmers particularly in theeastern region of the Amazon. So, the objective of this study was to evaluate the spatialdependence of FY on three oil palm genotypes, grown for many years in an organic produc-tion system in the Amazon region. The study area had 4104 ha, divided into 139 plots. Ineach plot, the monthly incidence of disease was monitored forming a database. The num-ber of diseased plants per year, number of accumulated diseased plants, number of dis-eased plants per hectare, growth rate of diseased plants and incidence of accumulateddisease were evaluated. The results indicated spatial distribution of the variables adjustedto the gaussian, spherical and exponential models, with predominance of the first *** increases the purpose that FY is caused by biotic factors. The highest range achievedin the study was 2929 m indicating the susceptibility of the tested genotypes. Some plotsclose to the river had the highest incidence of the disease on the study, probably associatedwith higher soil moisture.

关键词： Elaeis guineensis Geostatiscal analysis Kriging Palm oil Spatial dependence

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Saturated anisotropic hydraulic conductivity of a compacted lateritic soil

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Journal of Rock Mechanics and Geotechnical Engineering 2018年第5期10卷 986-991页

作者： Roberto Aguiar dos santos Edmundo Rogerio Esquivel Varzea Grande Institute of Engineering Federal University of Mato Grosso Cuiaba Mato Grosso Brazil Sao Carlos School of Engineering University of Sao Paulo Sao Carlos Sao Paulo Brazil

This study focuses on the saturated anisotropic hydraulic conductivity of a compacted lateritic clayey sandy soil. The effects of the molding water content and the confining stress on the anisotropic hydraulic conductivity are investigated. The hydraulic conductivity is measured with a flexible-wall permeameter. Samples are dynamically compacted into the three compaction states of a standard Proctor compaction curve： the dry branch, optimum water content and wet branch. Depending on the molding water content and confining stress, the hydraulic conductivity may increase or decrease. In addition, the results indicate that, when the samples are compacted to the optimum water content, lower hydraulic conductivity is obtained, except at a confining stress equal to 50 kPa. The increase of the confining stress decreases the hydraulic conductivity for each of the evaluated compaction states. In the wet branch, horizontal hy- draulic conductivity is about 8 times higher than the vertical value. The anisotropic hydraulic conduc- tivities of the dry and wet branches decrease when the confining stress increases, and the opposite is observed in the optimum water content state.

关键词： Hydraulic conductivity Anisotropic behavior Lateritic soil Tropical soil Compacted soil

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Influence of a non-rotating shoulder on heat generation,microstructure and mechanical properties of dissimilar AA2024/AA7050 FSW joints

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Journal of Materials Science & Technology 2018年第1期34卷 119-127页

作者： Alessandro Barbini Jan Carstensen Jorge F.dos santos Helmholtz-Zentrum Geesthacht Institute of Materials Research Materials Mechanics Solid-State Joining Processes (WMP)

Friction stir welding （FSW） and stationary shoulder friction stir welding （SSFSW） were carried out for the butt joining of dissimilar AA2024-T3 and AA7050-T7651 aluminium alloys with thicknesses of 2 mm. A comparison between the two processes was performed by varying the welding speed while keeping the rotational speed constant, Through the analysis of the force and torque produced during welding and a simple analytical model, it was possible to show that in SSFSW there is more effective coupling with the tool and the heat produced is more efficiently distributed. This process decreases both the welding area and the diffusion at the interface of the two alloys compared with FSW. The minimum microhardness occurred at the advancing side （AS） at the interface between the thermo-mechanically affected zone （TMAZ） and the stir zone （SZ） in both processes, although the decrease was more gradual in SSFSW. This interface is also where all specimens failed for both welding technologies. An increase in tensile strength was measured in SSFSW compared with standard FSW. Furthermore, it was possible to establish the mechanical performance of the material in the fracture zone using digital image correlation.

关键词： Stationary shoulder friction stir welding Friction stir welding Dissimilar welded joints Process analysis Microstructure analysis Mechanical behaviour

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