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Ξbb and Ωbbb molecular states

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Chinese Physics C 2020年第6期44卷 87-94页

作者： J.M.dias Qi-Xin Yu Wei-Hong Liang Zhi-Feng Sun Ju-Jun Xie E.Oset m.dias1 2qi-xin yu13wei-hong liang14zhi-feng sun5ju-jun xie6785.oset191.department of physicsguangxi normal universityguilin 541004china instituto de física universidade de são paulorua do matão 1371.butantãcep 05508-090são paulosão paulobrazil institute for experimental physics department of physicsuniversity of hamburgluruper chaussee 149d-22761 hamburggermany guangxi key laboratory of nuclear physics and technology guangxi normal universityguilin 541004china school of physical science and technology lanzhou universitylanzhou 730000china institute of modern physics chinese academy of scienceslanzhou 730000china school of physics and microelectronics zhengzhou universityzhengzhou 450001china school of nuclear science and technology university of chinese academy of sciencesbeijing 100049china departamento de física teórica and ific centro mixto universidad de valencia-csic institutos de investigación de paternaaptdo.2208546071 valenciaspain

Using the vector exchange interaction in the local hidden gauge approach,which in the light quark sector generates the chiral Lagrangians and has produced realistic results for Ωc,Ξc,Ξb and the hidden charm pentaquark states,we study the meson-baryon interactions in the coupled channels that lead to the Ξbb and Ωbbb excited states of the molecular *** obtain seven states of the Ξbb type with energies between 10408 and 10869 MeV,and one Ωbbb state at 15212 MeV.

关键词： doubly-heavy baryons strong interaction molecular state

Impact of microbial self-induced anaerobiosis fermentation(SIAF)on coffee quality

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Food Bioscience 2022年第3期47卷 421-430页

作者： Marcela Caroline Batista da Mota Nádia Nara Batista disney Ribeiro dias Rosane freitas Schwan department of Biology Federal University of LavrasLavrasMGBrazil Food Science department Federal University of LavrasLavrasMGBrazil

The fermentation of natural(NC)and pulped coffee(PC)was performed with a conventional method(platform)and under self-induced anaerobic fermentation(SIAF).Of the 12 samples analyzed during the fermentation process,the highest temperature was obtained by the SIAF method(30.5℃ for NC and 29.67℃ for PC)with 87 h of *** compounds(36 samples)were evaluated by high-performance liquid *** in the SIAF method contributed to the maximum amount of citric acid(2.534 mg/g)in pulped coffee and acetic acid(6.04 mg/g)and lactic acid(2.533 mg/g)in *** was the primary chemical class detected,followed by ketones and *** coffees(12 samples)were evaluated five times and classified as specialty coffees(>80 points)following Specialty Coffee Association(SCA)*** pulped coffee processed by the SIAF method showed a 2.83-point increase in the sensory score compared to the conventional ***,the SIAF method is accessible to producers,contributes to coffees with differentiated sensory profiles,and increases beverage quality.

关键词： Bioreactor Fermentative process Specialty coffee Anaerobic conditions Natural processing

Tracheobronchial Polyflex stents for the management of benign refractory hypopharyngeal strictures

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World Journal of Gastroenterology 2012年第6期18卷 551-556页

作者： Rui Almeida Silva Nuno Mesquita Pedro Pimentel Nunes Elisabete Cardoso ricardo Marcos Pinto Luís Moreira dias department of Gastroenterology Instituto Português de Oncologia do Porto Francisco GentilR.Doutor António Bernardino de Almeida 4200-072PortoPortugal department of Gastroenterology Centro Hospitalar do PortoLargo Prof.Abel Salazar 4099-001PortoPortugal

AIM:To describe a modified technique for placement of a tracheobronchial self-expanding plastic stent(SEPS) in patients with benign refractory hypopharyngeal strictures in order to improve dysphagia and allow stricture ***:A case series of four consecutive patients with complex hypopharyngeal strictures after combinedtherapy for laryngeal cancer,previously submitted to multiple sessions of dilation without lasting improvement,is *** patients underwent placement of a small diameter and unflared tracheobronchial *** outcome measurements were improvement of dysphagia and avoiding of repeated ***:The modified introducer system allowed an easy and technically successful deployment of the tracheobronchial Polyflex stent through the *** four patients developed complications related to stent *** patients had stent migration(one proximal and one distal),two patients developed phanryngocutaneous fistulas and all patients with stents in situ for more than 8 wk had hyperplastic tissue growth at the upper end of the *** recurrence was observed at 4 wk follow-up after stent removal in all patients CONCLUSION:Although technically feasible,placement of a tracheobronchial SEPS is associated with a high risk of *** diameter stents must be kept in place for longer than 3 mo to allow adequate time for stricture remodeling.

关键词： Larynx neoplasms Hypopharynx Strictures dilation Stents

Purification,characterization and antiproliferative activity of L-asparaginase from Aspergillus oryzae CCT 3940 with no glutaminase activity

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Asian Pacific Journal of Tropical Biomedicine 2016年第9期6卷 785-794页

作者： Fernanda Furlan Goncalves dias Ana Lucia Tasca Gois Ruiz Adriana della Torre Helia Harumi Sato department of Food Science School of Food EngineeringUniversity of Campinas division of Pharmacology and Toxicology Multidisciplinary Center for ChemicalBiological and Agricultural ResearchUniversity of Campinas

Objective:To explore the anti-proliferative activity of purified L-asparaginase from Aspergillus oryzae CCT 3940(***).Methods:L-asparaginase was produced by submerged fermentation and purified to electrophoresis homogeneity by ionic exchanged chromatography in a fast protein liquid chromatographic *** purified enzyme was characterized and used for the antiproliferative assay against nine tumor cell lines and one non-tumor cell ***:The free glutaminase L-asparaginase was purified 28.6 fold.L-asparaginase showed high stability under physiological condition,remaining stable in the p H range7.0–8.0 after 1 h incubation at temperature range 30–45℃.The Km and Vmax values of purified L-asparaginase were estimated as 0.66 mmol/L and 313 IU/mL,*** purified enzyme could inhibit the growth of a broad range of human tumor cell lines at the concentrations ***,the enzyme from *** CCT 3940 could inhibit tumor growth of leukemia cell line(K562) with a total growth inhibition value of(3.2 ± 2.5) IU/mL and did not inhibit the non-carcinogenic human cell line growth at the concentrations ***:The sensitivity of the cells lines to purified L-asparaginase from *** CCT 3940 appeared to be concentration dependent affording a more significant decrease in cell growth than that observed for the commercial L-asparaginase from Escherichia *** L-asparaginase from *** CCT 3940 has a high potential for pharmaceutical exploitation in the treatment of leukemia.

关键词： L-asparaginase Aspergillus oryzae Purification Anti-tumoral activity

^(222)Rn calibration procedure for water analyses by liquid scintillation counting

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辐射探测技术与方法(英文) 2023年第2期7卷 311-319页

作者： Ana Rita Gomes Sérgio dias Anabela Mourato Joao Abrantes Mário Reis Laboratório de Protecao e Seguranca Radiológica Instituto Superior TécnicoUniversidade de LisboaEstrada Nacional 10km 13972695‑066 Bobadela LRSPortugal Laboratórios de Massa e Massa Volúmica de Sólidos Instituto Portugues da QualidadeRua António Giao22829‑513 CaparicaPortugal Centro de Ciências e Tecnologias Nucleares Instituto Superior TécnicoUniversidade de LisboaEstrada Nacional 10km 13972695‑066 Bobadela LRSPortugal

Purpose Among the several methods to measure ^(222)Rn in water,the liquid scintillation counting(LSC)technique is one of the most sensitive and widely used when analysing non-saline waters by liquid extraction,providing excellent accuracy,precision and low-level detection *** using the liquid scintillation counter Tri-Carb 3170 TR/SL(Perkin-Elmer)it is not possible to make an automatic determination of the alpha/beta discrimination parameter,being necessary to evaluate the pulse decay discriminator(Pdd)value manually to the ^(222)Rn *** this work,we describe the steps to perform the calibration of that type of *** The method consists in the preparation of standard samples from a ^(226)Ra certified standard solution and the adjustment of the Pdd value by hand until the percentage of alpha events reaches a plateau of a near-constant fraction of total *** process consists in taking several measures between Pdd 80 and 200 with 15 min counting time *** the plateau,the alpha/beta ratio was used to determine the plateau final range as well as the optimum Pdd *** that,the calibration standards and blanks were measured and the region of interest(ROI)was established by finding the maximum value for the figure of merit(FOM)in the upper and lower *** The optimal Pdd value of 148 was established by the alpha/beta ratio,and after that,it was possible to measure ^(226)Ra standards to perform the *** efficiency of(9.758±0.035)×1^(0-1) was *** routine measurements,a detection limit of about 0.50 Bq L^(-1) is achieved for a 120 min counting *** evaluate the uncertainty budget,the uncertainties of the net count rate,the efficiency,the sample amount and the decay correction factor were *** A method was developed for the calibration of LSC Tri-Carb 3170 TR/SL with the optimization of the Pdd using a ^(226)Ra standard *** acquisition to obtain the plot of the variation

关键词： Radon Waters Pulse decay discriminator Liquid scintillation counting Calibration

disseminated cutaneous leishmaniasis due to Leishmania(Leishmania) amazonensis in human immunodeficiency virus(HIV)-infected patients: A report of two cases

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Asian Pacific Journal of Tropical Medicine 2021年第6期14卷 281-284页

作者： Camila F Araújo Iara B N Oliveira Murilo B Silveira Fátima Ribeiro-dias Hospital de doenças Tropicais doutor Anuar Auad GoiâniaGoiásBrazil Laboratório de Imunidade Natural(LIN) Instituto de Patologia Tropical e Saúde PúblicaUniversidade Federal de GoiásGoiâniaGoiásBrazil

Rationale: Co-infection of human immunodeficiency virus(HIV) and Leishmania spp. has impact on clinical and therapeutic outcomes of leishmaniases. Most studies do not present the identification of Leishmania species causing American tegumentary leishmaniasis in co-infections. In the Americas, Leishmania(L.) Viannia(V.) braziliensis and L.(V.) guyanensis have been identified. Patient concerns: In this study, two cases of American tegumentary leishmaniasis in patients infected with HIV are described. Patients presented several lesions with rapid dissemination and mucosal involvement. diagnosis: disseminated cutaneous leishmaniasis caused by L. amazonensis was identified by molecular test. Interventions: The patients were treated with conventional therapies for HIV infection and American tegumentary leishmaniasis. Outcomes: In co-infection, the clinical manifestations are atypical and the treatment response can be impaired. Lessons: These cases show that HIV infection impacts L. amazonensis infection and point to the relevance of identifying Leishmania species, which can lead to a better patient management.

关键词： Leishmania amazonensis HIV disseminated cutaneous leishmaniasis Case report

Metamorphic disturbances of magnetite chemistry and the Sm-Nd isotopic system of reworked Archean iron formations from NE Brazil

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Geoscience frontiers 2022年第5期13卷 227-241页

作者： Joice dias de Moraes Pedro Cordeiro Eduardo Abrahão Filho Juliana Rezende Oliveira Carlos Victor Rios da Silva Filho Instituto de Geociências Universidade de Brasília(UnB)70910-900 BrasíliaDFBrazil department of Mining Engineering Pontifical Catholic University of Chile7820436 SantiagoChile

Iron formations are valuable archives of sedimentary conditions and post-depositional ***,geochemical proxies commonly used to determine genetic characteristics can be variably modified during metamorphism and deformation,hampering their use as records of regional geological *** work focuses on strongly reworked magnetite-quartz-rich rocks from the São Josédo Campestre Massif,one of the oldest fragments of preserved crust in South *** genetic classification of these magnetite-quartz-rich rocks is not straightforward because primary assemblages and textures were variably modified by granulite facies metamorphism during a regional Paleoproterozoic migmatization *** address genetic ambiguities,we analyzed their magnetite and pyroxene chemistry,wholerock geochemistry,and Sm-Nd *** chemistry indicates that pyroxene-poor iron formations(Type B)are low in trace elements such as Ti,Al,V,and Mn,suggesting a chemical similarity to iron formations *** contrast,magnetites from pyroxene-enriched Type A iron formations are rich in trace elements and more akin to magnetite crystallized from higher temperature systems,such as skarn and ***^(147)Sm/^(144)Nd of these rocks show substantial variation even at the outcrop scale,indicating a locally-controlled,highly heterogeneous mixture of Archean,Paleoproterozoic,and Neoproterozoic ***,our geochemical tools point out to heterogenous signatures of these magnetitequartz rocks and proxies compatible with both low and high-temperature conditions and age of deposition spanning sources from the Archean to the *** interpret that the studied São Josédo Campestre magnetite-quartz rocks represent Archean iron formations with original magnetite chemistry and isotopic signatures variably modified by metamorphism and by at least one deformation-related hydrothermal *** results contrast with similar examples from China and Greenland where iron formation

关键词： Metamorphic disturbances of magnetite chemistry and the Sm-Nd isotopic system of reworked Archean iron formations from NE Brazil

Modelling the role of ground-true riparian vegetation for providing regulating services in a Mediterranean watershed

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International Soil and Water Conservation Research 2023年第1期11卷 159-168页

作者： Bruno A.Aparício João Pedro Nunes Léonard Bernard-Jannin Luis Filipe dias Andre Fonseca Teresa Ferreira cE3c-Centre for Ecology Evolution and Environmental Changes&CHANGE-Global Change and Sustainability InstituteFaculty of SciencesUniversity of LisbonLisbonPortugal Forest Research Centre&Laboratory TERRA School of AgricultureUniversity of LisbonLisbonPortugal Soil Physics and Land Management Group Wageningen University and ResearchWageningenNetherlands Longline Environment Ltd LondonUK

Intensive agricultural and industrial activities are often considered major sources of water ***,riparian vegetation(RV)is increasingly being promoted as a solution to balance the potentially adverse effects that agriculture may have on water ***,existing RV is often overlook in recent modelling efforts,failing to capture the current amount of ecosystem services ***,we used the Soil and Water Assessment Tool ecohydrological model to simulate the influence of ground-true RV on i)nutrient(nitrate and total phosphorus)and sediment exports from agricultural areas and ii)its effect for in-stream *** results are further compared against a set of hypothetical scenarios of different RV widths and different *** results point to a great rele-vance of existing RV in controlling in-stream concentration of sediments and nutrients where pressure from agriculture is highest,preventing them to surpass limits set in the EU Water framework *** the other hand,in areas with industry discharges,the role of RV is limited and model results suggest that restoring RV would have limited *** illustrate how existing RV may already provide strong but not acknowledged water quality regulation services,how these services can differ substantially between nearby streams,and that effective strategies to improve water quality using RV must acknowledge existing patterns of vegetation,land use and contamination sources.

关键词： Agricultural pollution Riparian vegetation Ecosystem services Hydrological services Mediterranean region

Record of hydrothermal activity in the Yuhuang hydrothermal field and its implications for the Southwest Indian Ridge:evidence from sulfide chronology

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Acta Oceanologica Sinica 2023年第11期42卷 59-68页

作者： Weifang Yang Chunhui Tao Shili Liao Jin Liang Wei Li Teng ding Ágata Alveirinho dias Xuefeng Wang Lisheng Wang Key Laboratory of Submarine Geosciences Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China School of Oceanography Shanghai Jiaotong UniversityShanghai 200030China School of Marine Science and Engineering Nanjing Normal UniversityNanjing 210023China Institute of Science and Environment University of Saint JosephMacao 999078China Key Laboratory of Cenozoic Geology and Environment Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China

The Yuhuang hydrothermal field(YHF)is located between the Indomed and Gallieni fracture zones near the top of the off-axis slope on the south rift wall of Segment 29 on the ultraslow Southwest Indian Ridge(SWIR).Previous studies have shown that sulfides in the YHF formed during different mineralization episodes and the YHF has the greatest potential for the formation of large-scale seafloor massive sulfide ***,the sulfide chronology and hydrothermal activity of the YHF remain poorly *** this study,mineralogical analyses and 230Th/U dating were *** activity may start about(35.9±2.3)ka from the southwest part of the YHF and may cease about(708±81)a ago from the northeast part of the *** 74 nonzero chronological data from hydrothermal sulfide samples provide the first quantitative characterization of the spatial and temporal history along the *** activity in the SWIR has been relatively active over the past20 *** contrast,between 40 ka and 100 ka,hydrothermal activity was relatively infrequently and short in *** maximum activity occurred at 15–11 ka,9–7 ka,6–0.2 *** was a slight positive correlation between the maximal age and estimated surface area or estimated *** minimum mass accumulation rate of YHF is about 278 t/a,which is higher than most HFs related to ultramafic *** ultraslow spreading SWIR has the greatest potential to form large-scale seafloor massive sulfides(SMS)*** results of this study provide new insights into the metallogenic mechanism of hydrothermal sulfides along ultraslow-spreading ridges.

关键词： Southwest Indian Ridge seafloor massive sulfides 230Th/U dating hydrothermal activity mass accumulation