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Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as picrate from Water

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Advances in Chemical Engineering and Science 2024年第2期14卷 74-83页

作者： Walther B. Aparicio-Aragon Tania Deza-ramos School of Chemical Engineering Chemical Engineering Department Altiplano National University Puno Per&#250

Currently a technique widely used for gold extraction is mercury by amalgamation technique, the tailing produced pollutes water of all kinds, so it is necessary to develop a form of selective mitigation, for which it is necessary to use complexing agents based on calixarene functionalized with mercury sequestering agents. These are immobilized by adding supports based on natural silica to form polymers and make them insoluble in all types of solvents, so that they can be used as an extractor and at the same time regenerate to their original properties for continuous reuse.

关键词： Extraction Amalgamation polymer Natural Silicate Calixarene

Assessment of programmed death-ligand 1 expression in primary tumors and paired lymph node metastases of gastric adenocarcinoma

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 883-893页

作者： Brendha Cação Coimbra Marina Alessandra pereira leonardo Cardili Venancio Avancini Ferreira Alves Evandro Sobroza de Mello Ulysses Ribeiro Jr Marcus Fernando Kodama pertille ramos Department of Gastroenterology Instituto do CancerHospital das Clínicas da Faculdade de Medicina da Universidade de São PauloFaculdade de MedicinaUniversidade de São PauloSão Paulo 01246000Brazil Department of pathology Instituto do CancerHospital das Clínicas da Faculdade de Medicina da Universidade de São PauloSão Paulo 01246000Brazil

BACKGROUND Anti-programmed death-1/programmed death-ligand 1(pD-1/pD-l1)immuno-therapy has demonstrated promising results on gastric cancer(GC).However,pD-l1 can express differently between metastatic sites and primary tumors(pT).AIM To compare pD-l1 status in pT and matched lymph node metastases(lNM)of GC patients and to determine the correlation between the pD-l1 status and clinicopathological *** We retrospectively reviewed 284 GC patients who underwent ***-l1 was evaluated by immunohistochemistry(clone Sp142)using the com-bined positive *** pD-l1+pT staged as pN+were also tested for pD-l1 expression in their ***-l1(-)GC with pN+served as the comparison *** Among 284 GC patients included,45 had pD-l1+pT and 24 of them had pN+.For comparison,44 pD-l1(-)cases with pN+were included(sample loss of 4 cases).Of the pD-l1+pT,54.2%(13/24 cases)were also pD-l1+in the *** pD-l1(-)pT,9.1%(4/44)had pD-l1+in the *** agreement between pT and lNM had a kappa value of *** tumor size and moderate/severe peritumoral inflammatory response were associated with pD-l1 positivity in both *** was no statistical difference in overall survival for pT and lNM according to the pD-l1 status(p=0.166 and p=0.837,respectively).CONClUSION Intra-patient heterogeneity in pD-l1 expression was observed between the pT and matched *** disagreement in pD-l1 status may emphasize the importance of considering different tumor sites for analyses to select patients for immunotherapy.

关键词： Gastric cancer lymph node programmed death ligand 1 Stomach neoplasms Immunohistochemistry Metastasis

Unsuccessful tuberculosis treatment outcomes across Brazil's geographical landscape before and during the COVID-19 pandemic:are we truly advancing toward the sustainable development/end TB goal?

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Infectious Diseases of poverty 2024年第1期13卷 105-106页

作者： Reginaldo Bazon Vaz Tavares Thais Zamboni Berra Yan Mathias Alves Marcela Antunes paschoal popolin Antonio Carlos Vieira ramos Ariela Fehr Tartaro Clara Ferreira de Souza Ricardo Alexandre Arcencic Department of Maternal-Infant and public Health Nursing University of São Paulo at Ribeirão Preto College of Nursing (USP/RPCN) Ribeirão Preto São Paulo Brazil Federal University of Tocantins Palmas Campus (FUT) Palmas Brazil State University of Minas Gerais Passos Campus (SUMG) Passos Brazil

Background Tuberculosis is one of the most significant infectious diseases for global public *** reallocation of healthcare resources and the restrictions imposed by the COVID-19 pandemic have hindered access to TB diag-nosis and *** in unfavorable outcomes of the disease have been observed in *** objective of this study was to analyze the spatial distribution of unfavorable TB treatment outcomes in Brazil before and during the *** An ecological study with spatial analysis was conducted with all 5569 municipalities in *** reported cases of tuberculosis between January 2010 and December 2021,as well as reported cases of COVID-19 from Febru-ary 2020 to December 2021,were *** outcomes studied encompass loss to follow-up,drug-resistant tuber-culosis,and *** Getis Ord GI*technique was employed to assess spatial association,and the Kernel density estimator was used to identify areas with concentrated increases or decreases in *** local Moran's/was used to examine the spatial association between outcomes and cOVID-19 *** study was approved by the Research Ethics Committee of Ribeirao preto Nursing School,University of Sao *** There were 134,394 cases of loss to follow-up,10,270 cases of drug resistance,and 37,863 *** of high and low values were identified for all three outcomes,indicating significant changes in the spatial distribu-tion *** in concentrations were observed for lost to follow-up cases in the Southeast,while reductions occurred in the Northeast,South,and ***-resistant tuberculosis experienced an increase in the Southern and Southeastern regions and a decrease in the Northeast and ***-related deaths showed notable concentra-tions in the Midwest,Northeast,South,and *** was an increase in high occurrence clusters for deaths after 2020 and 2021 in the *** The pandemic has brought additional chal

关键词： Tuberculosis COVID-19 Spatial analysis Ecological studies

plant growth and metabolism of exotic and native Crotalaria species for mine land rehabilitation in the Amazon

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Journal of Forestry Research 2024年第1期35卷 143-154页

作者： Hemelyn Soares das Chagas rafael Silva Guedes Markus Gastauer paula Godinho Ribeiro Allan Klynger da Silva lobato Cecílio Frois Caldeira Fabrício William deÁvila AndréRodrigues dos Reis Silvio Junio ramos Instituto Tecnológico Vale Rua Boaventura da Silva955BelémPA 66055-090Brazil Universidade Federal do Sul e Sudeste do pará XinguaraPABrazil Núcleo de pesquisa Vegetal Básica e Aplicada Universidade Federal Rural da AmazôniaParagominasPABrazil Departamento de Engenharia Florestal Universidade Estadual do Centro-Oeste/UNICENTROIratiPRBrazil School of Sciences and Engineering São Paulo State University(UNESP)TupãSP.CEP 17602-496Brazil

Despite its enormous benefits,mining is respon-sible for intense changes to vegetation and soil ***,after extraction,it is necessary to rehabilitate the mined areas,creating better conditions for the establishment of plant species which is *** study evaluated mineral and organic fertilization on the growth,and carbon and nitrogen(N)metabolism of two Crotalaria species[Cro-talaria spectabilis(exotic species)and Crotalaria maypu-rensis(native species from Carajás Mineral province(CMp)]established on a waste pile from an iron mine in CMp.A control(without fertilizer application)and six fertilization mixtures were tested(i=NpK;ii=NpK+micronutrients;iii=NpK+micronutrients+organic compost;iv=pK;v=pK+micronutrients;vi=pK+micronutrients+organic compost).Fertilization contributed to increased growth of both species,and treatments with NpK and micronutrients had the best results(up to 257%***),while organic fertilization did not show *** Crotalaria had a greater number of nodules,higher nodule dry mass,chlorophyll a and b contents and showed free ammonium as the predominant N form,reflecting greater increments in biomass compared to native *** having lower growth,the use of this native species in the rehabilitation of mining areas should be considered,mainly because it has good development and meets current government legislation as an opportunity to restore local biodiversity.

关键词： Biological nitrogen fixation Mining Nitrogen metabolism plant nutrition

增材制造Ti6Al4V合金的闪速等离子体电解氧化与在生理介质中的电化学行为

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Transactions of Nonferrous Metals Society of China 2024年第4期34卷 1150-1166页

作者： H.MOra-SANCHEZ C.ramos M.MOHEDANO B.TORRES R.ARraBAl E.MATYKINA Departamento de Ingeniería Química y de Materiales Facultad de Ciencias QuímicasUniversidad Complutense de Madrid28040 MadridSpain CIDETEC Basque Research and Technology Alliance(BRTA)Po.Miramón 19620014 Donostia-San SebastiánSpain Departamento Matemática Aplicada Ciencia e Ingeniería de Materiales y Tecnología ElectrónicaUniversidad Rey Juan CarlosC/Tulipán s/nMóstoles 28933MadridSpain

研究激光粉末床熔融增材制造(AM)(又称直接金属激光烧结)技术制备的Ti6Al4V合金等离子体电解氧化(pEO)处理及其电化学行为。通过短时间(<120 s)pEO处理(也称闪速pEO),在AM合金和传统合金表面制备了3~10μm厚、含Ca和p的涂层。然后在改... 详细信息

研究激光粉末床熔融增材制造(AM)(又称直接金属激光烧结)技术制备的Ti6Al4V合金等离子体电解氧化(pEO)处理及其电化学行为。通过短时间(pEO处理(也称闪速pEO),在AM合金和传统合金表面制备了3~10μm厚、含Ca和p的涂层。然后在改良的α-MEM溶液中,通过动电位极化曲线和电化学阻抗谱(EIS)评估了合金的电化学行为。与传统合金相比,AM合金中形成了细小的层片状α显微组织和层间小尺寸的β相颗粒,这促使了火花的产生,从而促进了pEO涂层的生长。闪速pEO涂层提高了传统合金和AM合金的耐腐蚀性,最薄的涂层(l4V由于其高的晶界密度,易受局部缝隙腐蚀的影响。而即使短至35 s的闪速pEO处理也足以成功避免这种情况。

关键词：增材制造激光粉末床熔融等离子体电解氧化闪速pEO 钛缝隙腐蚀 α-MEM

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Are assemblages of the fireworm Hermodice carunculata enhanced in sediments beneath offshore fish cages?

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Acta Oceanologica Sinica 2014年第4期33卷 108-111页

作者： Rodrigo Riera Oscar pérez Myriam Rodríguez Eva ramos óscar Monterroso Centro de Investigaciones Medioambientales del Atlántico (CIMA Sl) Department of Biodiversity Qatar Environment and Energy Research Institute (QEERI)

Abundances of the fireworm Hermodice carunculata were counted through a monitoring assessment study of fish cages in Barranco Hondo（NE Tenerife）. Seven campaigns were conducted from November 2007 to June 2010 and temporal variations were found, as well as differences among sampling stations. The polychaete H. carunculata obtained its highest abundance in sediments beneath fish cages throughout the study period. Thus, the assemblages of this omnivorous species were favoured by the presence of fish cages.

关键词： aquaculture organic enrichment environmental impact polychaeta Hermodice carunculata Tenerife Canary Islands Atlantic Ocean

History Teacher Training from Decolonial Curriculum practices to Combat racism at Uniprojeção in the Federal District-A Secondary publication

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Journal of Contemporary Educational Research 2024年第2期8卷 187-202页

作者： Karoline da Silva ramos Cláudia pinheiro Nascimento Francisca Carla Santos Ferrer Faculty of philosophy Languages and Human SciencesUniversity of São PauloSão PauloBrazil

This article aims to understand the training process of history undergraduates,to see if there are decolonial curricular practices to combat racism at the Centro Universitário e Faculdade projeção(Uniprojeção)in the Federal District,to understand how coloniality has corroborated the exclusion of different epistemologies and the erasure of different cultures,and how this exclusionary process of coloniality interferes in the training of history *** order to combat this practice,we are looking for alternatives that can break these suppressions carried out by *** this way,we turn to decolonial ideas that aim to break with the logic of *** can conclude that these practices are poorly developed in the institution,so we proposed active problem-based methodology and music as a didactic *** playful educational tools that strengthen the teaching-learning process,they are active agents in the decolonial work of combating racism,and it is essential to train responsible and ethical teachers in the fight against racism and any form of oppression.

关键词： Coloniality Decoloniality Education Curriculum practices racism

Feasibility of the 2-point method to determine the load-velocity relationship variables during the countermovement jump exercise

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Journal of Sport and Health Science 2023年第4期12卷 544-552,F0003页

作者： Alejandro pérez-Castilla Rodrigo ramirez-Campillo John F.T.Fernandes Amador García-ramos Department of physical Education and Sport Faculty of Sport SciencesUniversity of GranadaGranada 18011Spain Human performance laboratory Department of Physical Activity SciencesUniversidad de Los LagosSantiago 5170000Chile Centro de Investigacion en Fisiologıa del Ejercicio Facultad de CienciasUniversidad MayorSantiago 8580745Chile Higher Education Sport Hartpury UniversityHartpury GL193BEUK Department of Sports Sciences and physical Conditioning Faculty of EducationUniversidad Catolica de la Santısima ConcepcionConcepcion 4090541Chile

purpose:This study aimed to examine the reliability and validity of load-velocity(l-V)relationship variables obtained through the 2-point method using different load combinations and velocity ***:Twenty men performed 2 identical sessions consisting of 2 countermovement jumps against 4 external loads(20 kg,40 kg,60 kg,and80 kg)and a heavy squat against a load linked to a mean velocity(MV)of 0.55 m/s(load_(0.55)).The l-V relationship variables(load-axis intercept(l_(0)),velocity-axis intercept(v_(0)),and area under the l-V relationship line(A_(line)))were obtained using 3 velocity variables(MV,mean propulsive velocity(MpV),and peak velocity)by the multiple-point method including(20-40-60-80-load_(0.55))and excluding(20-40-60-80)the heavy squat,as well as from their respective 2-point methods(20-load_(0.55)and 20-80).Results:The l-V relationship variables were obtained with an acceptable reliability(coefncient of variation(CV)≤7.30%;intra-class correlation coefficient>0.63).The reliability of l_(0)and v_(0)was comparable for both methods(CV_(ratio)(calculated as higher value/lower value):1.11-1.12),but the multiple-point method provided Al_(ine)with a greater reliability(CV_(ratio)=1.26).The use of a heavy squat provided the l-V relationship variables with a comparable or higher reliability than the use of a heavy countermovement jump load(CV_(ratio):1.06-1.19).The peak velocity provided the load-velocity relationship variables with the greatest reliability(CV_(ratio):1.15-1.86)followed by the MV(CV_(ratio):1.07-1.18),and finally the *** 2-point methods only revealed an acceptable validity for the MV and MpV(effect size≤0.19;pearson s product-moment correlation coefficient≥0.96;lin's concordance correlation coefficient≥0.94).Conclusion:The 2-point method obtained from a heavy squat load and MV or MpV is a quick,safe,and reliable procedure to evaluate the lower-body maximal neuromuscular capacities through the l-V relationship.

关键词： Force-velocity relationship Mean velocity Multiple-point method peak velocity Velocity-based training

pisco grape pomace:Iron/copper speciation and antioxidant properties,towards their comprehensive utilization

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Food Bioscience 2022年第3期47卷 1213-1221页

作者： Fátima Rodríguez-ramos raúl Cañas-Sarazúa Vilbett Briones-labarca Departamento de Ingeniería en Alimentos Universidad de La SerenaAv.Raúl Bitrán Nachary 1305Box 5991720010La SerenaChile

The pisco and wine industry produces hundreds of tons of grape pomace each year in Chile,generating environmental problems,and demanding urgent strategies for its *** aim of this work was to study the pisco grape pomace based on a physicochemical characterization,an iron/copper speciation analysis,and the optimization for polyphenols recovery,establishing the polyphenolic profile,antioxidant properties,and the Fe^(2+)/Cu^(2+) chelating activity,to promote their revalorization as an ingredient with potential application in the food *** chemical characterization showed mainly high values for crude protein(15.36%dw)and potassium(9240.66 mg/kg).The Fe/Cu speciation depicted that iron and copper soluble forms in pisco pomace flour represented 70.57%and 52.18%,respectively,regarding total *** optimized extract showed mainly pyrogallol,catechin and epicatechin,with concentrations of 1078.43±60.14μg/g,883.20±7.57μg/g and,751.76±23.04μg/g,respectively,with a relevant antioxidant capacity by Oxygen radical Absorbance Capacity(OraC)of 1402.15μmol TE/g dw GpE and,a better chelating ability to complex Fe^(2+) than Cu^(2+).The pisco pomace was for the first time chemically characterize,showing it as a potential source of minerals and antioxidant biocompounds,making it a good candidate for nutritional applications,as a rich source of organic matter or even could be potentially utilized to produce value-added commodities,toward a circular economy.

关键词： pisco grape pomace polyphenols Chemical speciation analysis Antioxidant capacity Metal chelating ability