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The Co-doped molybdenum carbides are considered promising catalytic materials. These materials have been employed in photocatalytic degradation reactions, which is the emission of radiation from sunlight or artificial light for the activation of the material to occur. In this work, we have studied the behavior of the Mo2C and Co-doped Mo2C, with Co concentration of 5% and 10%, through the photodegradation of the Maxilon Blue GRL 300 basic dye under tungsten light irradiation, varying the pH of the solutions. The carbide materials were characterized by X-ray diffraction, scanning electron microscopy coupled to EDS, and determination of the band gap energy by NIR Cary model 5G UV–visible spectrophotometer. Concerning the photocatalysis tests, the resulting solutions were analyzed by UV–visible spectroscopy, to calculate the final concentrations of the samples. This experimental procedure led to a decrease in carbonation temperature usually employed on the synthesis, as well as the modification/control of the photodegradation of the Maxilon Blue GRL 300 by manipulating the pH. The significant reaction yield results were for the acid medium molybdenum carbide sample, achieving a yield of 90.5% at the final concentration of the dye solution.

Gout is an inflammatory disease characterized by the accumulation of monosodium urate crystals (MSU) in the joints, leading to severe pain and inflammation. Stephalagine is a Brazilian Savanna aporphine alkaloid isolated from Annona crassiflora Mart. Fruit peel, that has been popularly used to treat rheumatism and have been described with antinociceptive properties. However, no studies evaluated the possible therapeutic properties of stephalagine in arthritic pain.To evaluate the possible antinociceptive and anti-inflammatory effects of stephalagine in an acute gout attack in mice.Adult male wild type C57BL/6/J/UFU mice (20-25 g) were used (process number 018/17). The treated group received stephalagine (1 mg/kg, by gavage) and the vehicle group received saline (10 mL/kg, by gavage), both 1 h before the MSU crystals (100 μg/ankle joint) administration. All groups were analyzed for mechanical allodynia, thermal hyperalgesia, overt pain-like behaviors, and edema development at 2, 4, 6 and 24 h after injections. Synovial fluid and the ankle articulation from the injected joint were collected 4 h after administrations for myeloperoxidase enzyme activity, IL-1β measurement, and histological analysis.Stephalagine had a significant antinociceptive effect on mechanical allodynia, when compared to vehicle group at 2-24 h after intra-articular injection of MSU and 2 h for spontaneous and cold thermal sensitivity. Stephalagine was also able to significantly reduce the articular edema (45 ± 1%), the activity of the myeloperoxidase enzyme (37 ± 6%), and IL-1β levels (43 ± 3%). The histological analysis confirms that stephalagine dramatically reduced the number of infiltrating inflammatory cells (75 ± 6%) in MSU injected animals. Also, stephalagine treatment did not alter the uric acid levels, xanthine oxidase activity, AST and ALT activities, urea and creatinine levels, neither cause any macroscopic changes in the mice's weight, deformations, changes in the coat, or feces.Stephalagine may be an alternative for the management of gout, once it was able to induce antinociceptive and anti-inflammatory effects without causing adverse effects on the evaluated parameters.

The purpose was to evaluate the implications of a proficiency barrier (PB) for physical activity (PA), sedentary time (ST) and weight status (WS) in a two-stage study. In Stage 1, motor quotient (MQ) cut-off values, based on the KTK test, for differentiating overweight/obese from normal weight, and sedentary from non-sedentary were identified in a sample of 734 children (353 girls) of 10 years of age. In Stage 2, the cut-off values were used to define low and high (respectively below and above the PB) MQ groups among 217 youth (118 girls) of 12.9(0.4) years of age. WS, PA and ST in the two MQ groups were compared at baseline and 1.5 years later. Chi-square tests were used to test the independence of low and high MQ classification on MS, moderate-to-vigorous PA, and sedentary time. Odds of being overweight/obese and sedentary according to MQ status at baseline were calculated. MQ of 79 for girls and 75 for boys were defined as the PB. In girls, the PB predicted significantly different classifications of WS, and a combination of WS and moderate-to-vigorous PA. In boys, the PB predicted significantly different classifications based on combined WS and moderate-to-vigorous PA at baseline. Having a MQ below the PB was associated with a 2.78 higher probability of being overweight/obese. In conclusion, the results suggest that a PB that influences PA and WS among youth may exist. El objetivo fue determinar una barrera de competencia motriz (BC) para la actividad física (AF), el tiempo sedentario (TS) y el estado ponderal (EP) en dos etapas. En la Etapa 1, los valores de corte del cociente motor (QM), basados en la prueba KTK, para diferenciar el sobrepeso/obesidad del peso normal y el sedentario del no sedentario se identificaron en 734 participantes (353 niñas) de 10 años. En la Etapa 2, los valores de corte se usaron para definir grupos de QM bajo y alto (respectivamente por debajo y por encima de la BC) entre 217 jóvenes (118 niñas) de 12,9(0,4) años. El EP, la AF y el TS en los dos grupos de QM se compararon al inicio y 1,5 años después. Chi-cuadrado se usó para evaluar la independencia de la clasificación de QM bajo y alto en el EP, AF moderada-vigorosa (AFMV) y TS. Se calcularon los odds-ration de tener sobrepeso/obesidad y sedentarismo según el QM al inicio. Los QM de 79 para niñas y 75 para niños se definieron como la BC. En las niñas, la BC predijo clasificaciones significativamente diferentes del EP y una combinación de EP y AFMV. En los niños, la BC predijo clasificaciones significativamente diferentes en función del EP y AFMV combinados al inicio del estudio. Tener un QM por debajo de la BC se asoció con una probabilidad 2,78 mayor de tener sobrepeso/obesidad. En conclusión, los resultados sugieren que puede existir una BC que influye en la AF y el EP. This work was supported by national funding through the Portuguese Foundation for Science and Technology, I.P., under project UID04045/2020. info:eu-repo/semantics/publishedVersion

The synthesis of ceramic materials such as ferrite has been widely studied in recent years, due to their properties that make these materials have excellent applications in technology, as well as in photocatalytic processes and as catalysts. To obtain the copper ferrite phase the EDTA-Citrate complexation method was used, varying pH (5, 7 and 9), temperature (600, 800 and 1000 °C) and calcination time (2, 7 and 12 h). Composition, morphology and structural analyzes were performed by X-ray fluorescence spectroscopy, X-ray dispersive energy, scanning electron microscopy and X-ray diffraction, respectively. Crystalline phase of copper ferrite (CuFe2O4) with tetragonal structure and secondary phase of Fe2O3 and CuO was verified by XRD analysis. Regarding the chemical composition analyzes, percentage deviations of the samples and the theoretical value for copper and iron were calculated. It was obtained minimum values of 0.16 - 0.08% (atomic%, EDS) and 16 - 8% (atomic%, XRF) in relation to copper and iron, respectively, for the sample obtained under pH 9, calcined at 600 °C for 12 h. The variation of the synthesis condition via EDTA-Citrate directly influenced the morphology of copper ferrite, presenting agglomerated particles, pore formation, irregular spheres, and even powder sintering.

The genus Phosphaenopterus Schaufuss, 1870 encompasses two species restricted to Europe, both underrepresented in the literature and entomological collections. Phosphaenopterus metzneri Schaufuss, 1870 is the most widely distributed within the genus, being recorded in France, Portugal, and Spain. Since its century-old original description based only on the male, the biology of this species was not further investigated. By collecting larvae of Phosphaenina where male of Phosphaenopterus metzneri occur, we reared them to adults, resulting in male and females of Phosphaenopterus metzneri – the latter hitherto unknown. The male-female association was possible due to copula recorded ex-situ. Here, we describe for the first time the neotenic female of Phosphaenopterus metzneri, a diurnal firefly, and redescribed the male. We provide illustration of diagnostic features of the adults, and an updated distribution map for Phosphenopterus metzneri. Considering the morphological resemblance between all the three species within Phosphaenina, we also redescribe the male of Phosphaenus hemipterus (Goeze, 1777), a species also presents in Portugal, providing important diagnostic features for both taxa. By comparing the morphology of males of Phosphaenus hemipterus and Phosphaenopterus metzneri, we could not find any difference other than proportions of elytra, and wings, which may be a result of the brachypterous condition of the former. This study stresses and discusses a putative case of wing polymorphism in Lampyridae, a rare condition in fireflies. This is also the first study to report both species in sympatric distribution info:eu-repo/semantics/publishedVersion

P��ster apresentado durante a IV Jornada Cient��fica do Curso de Medicina do Centro Universit��rio Unieuro. Bras��lia, DF, 2021.

Carbide-type ceramic materials such as nickel-doped molybdenum carbide have promising photocatalytic degradation activity. The addition of nickel to the molybdenum carbide aims to increase its reaction yield and also its characteristics. The objective of this paper was to study the photocatalytic activity of Mo2C and 5% and 10% nickel-doped Mo2C materials used for the degradation of the Maxilon Blue GRL 300 textile dye. The structural properties were characterized by X-ray diffraction and scanning electron microscopy. For the determination of band gap energy, diffuse reflectance spectroscopy was used. The samples of the photocatalysis tests were analyzed by UV-visible spectroscopy. The best reaction yield was observed for the 5% nickel-doped molybdenum carbide sample in photocatalytic tests, reaching a yield of around 92% in the final concentration of the dye solution. Resumo Materiais cerâmicos do tipo carbeto, como carbeto de molibdênio dopado com níquel, têm promissora atividade de degradação fotocatalítica. A adição de níquel ao carbeto de molibdênio visa aumentar seu rendimento de reação e também suas características. Este trabalho teve por objetivo estudar a atividade fotocatalítica dos materiais Mo2C e Mo2C dopado com 5% e 10% de níquel para a degradação do corante têxtil Maxilon Blue GRL 300. As propriedades estruturais foram caracterizadas por difração de raios X e microscopia eletrônica de varredura. Para a determinação da energia de band gap, foi utilizada espectroscopia de refletância difusa. As amostras dos testes de fotocatálise foram analisadas por espectroscopia UV-visível. O melhor rendimento de reação foi observado para a amostra de carboneto de molibdênio dopado com 5% de níquel em testes fotocatalíticos, atingindo um rendimento em torno de 92% na concentração final da solução de corante.

Left ventricular endomyocardial biopsy (LVEMB) is commonly performed via the transfemoral route. Radial access may help reduce vascular access complications, but there are few data on the safety and feasibility of transradial LVEMB.Describe the safety and feasibility of transitioning from transfemoral to transradial access LVEMB.This is a single-center, prospective, observational cohort study. Fifty procedures in 49 patients were included, 25 (50%) via the femoral route and 25 (50%) via the radial route.The cohort had a mean age of 47 ± 13 years and the most common indication for LVEMB was myocarditis. From June 2015 until September 2016, all procedures (n = 21) were performed via the femoral approach; thenceforth, there was a gradual transition to the radial approach. More tissue samples were obtained when the procedure was performed via the femoral approach (P.01). The minimum sampling target of 3 specimens was not met in 4 patients (16%) via the radial approach and in 1 patient (4%) via the femoral approach. Complications occurred in 3/25 transradial procedures (12%; 2 cardiac perforations and 1 forearm hematoma) and 3/25 transfemoral procedures (12%; 1 cardiac perforation, 1 femoral artery pseudoaneurysm, and 1 ventricular fibrillation). Cardiac perforations via the transradial approach occurred during the early transition period. There were no deaths.Transradial LVEMB is feasible, with a similar complication profile to femoral procedures, but associated with a smaller number of specimens. Transitioning from transfemoral to transradial procedures may initially be associated with a higher risk of complications and potentially a lower diagnostic yield.

Social wasps in Brazil are common elements being important components of interactions with other organisms, acting as predators as well pollinators. In this chapter, we review the study of this group since the discovery of Brazil, in 1500. In the first two centuries (1500–1700), references to this group are rare, being most of the references to Hymenopteran being about ants and bees. During this period, most of the animal descriptions were done by naturalists who focused on their practical use, derived products, and damage caused by them. Later, with the development of natural sciences and onset of taxonomic systems, studies became more systematic. Many foreign researchers and expeditions visited the country to study its wildlife and particularly social wasps. Furthermore, with the establishment of scientific societies and universities in Brazil, many researchers have pursued the study of this group.

Materiais cerâmicos do tipo carbeto, como carbeto de molibdênio dopado com níquel, têm promissora atividade de degradação fotocatalítica. A adição de níquel ao carbeto de molibdênio visa aumentar seu rendimento de reação e também suas características. Este trabalho teve por objetivo estudar a atividade fotocatalítica dos materiais Mo2C e Mo2C dopado com 5% e 10% de níquel para a degradação do corante têxtil Maxilon Blue GRL 300. As propriedades estruturais foram caracterizadas por difração de raios X e microscopia eletrônica de varredura. Para a determinação da energia de band gap, foi utilizada espectroscopia de refletância difusa. As amostras dos testes de fotocatálise foram analisadas por espectroscopia UV-visível. O melhor rendimento de reação foi observado para a amostra de carboneto de molibdênio dopado com 5% de níquel em testes fotocatalíticos, atingindo um rendimento em torno de 92% na concentração final da solução de corante Carbide-type ceramic materials such as nickel-doped molybdenum carbide have promising photocatalytic degradation activity. The addition of nickel to the molybdenum carbide aims to increase its reaction yield and also its characteristics. The objective of this paper was to study the photocatalytic activity of Mo2C and 5% and 10% nickel-doped Mo2C materials used for the degradation of the Maxilon Blue GRL 300 textile dye. The structural properties were characterized by X-ray diffraction and scanning electron microscopy. For the determination of band gap energy, diffuse reflectance spectroscopy was used. The samples of the photocatalysis tests were analyzed by UV-visible spectroscopy. The best reaction yield was observed for the 5% nickel-doped molybdenum carbide sample in photocatalytic tests, reaching a yield of around 92% in the final concentration of the dye solution

As SARS-CoV-2 and its related clinical syndrome (COVID-19) became a pandemic worldwide, questions regarding its clinical presentation, infectivity, and immune response have been the subject of investigation. We present a case of a patient previously considered recovered from nosocomially transmitted asymptomatic COVID-19 illness, who presented with new respiratory, radiological, and RT-PCR findings consistent with COVID-19, while on high-dose prednisolone due to a suspected secondary demyelinating disease. Importantly, it led to three subsequent cases within patient's household after discharge from the hospital. After reviewing this case in light of current evidence and debates surrounding SARS-CoV-2 RT-PCR results, we hypothesize that patients on corticosteroids may have particular viral shedding dynamics and should prompt a more conservative approach in regard to isolation discontinuation and monitoring.

We report a measurement of the energy spectrum of cosmic rays for energies above 2.5×1018 eV based on 215,030 events recorded with zenith angles below 60°. A key feature of the work is that the estimates of the energies are independent of assumptions about the unknown hadronic physics or of the primary mass composition. The measurement is the most precise made hitherto with the accumulated exposure being so large that the measurements of the flux are dominated by systematic uncertainties except at energies above 5×1019 eV. The principal conclusions are(1) The flattening of the spectrum near 5×1018 eV, the so-called "ankle,"is confirmed.(2) The steepening of the spectrum at around 5×1019 eV is confirmed.(3) A new feature has been identified in the spectrum: in the region above the ankle the spectral index γ of the particle flux (∝E-γ) changes from 2.51±0.03 (stat)±0.05 (syst) to 3.05±0.05 (stat)±0.10 (syst) before changing sharply to 5.1±0.3 (stat)±0.1 (syst) above 5×1019 eV.(4) No evidence for any dependence of the spectrum on declination has been found other than a mild excess from the Southern Hemisphere that is consistent with the anisotropy observed above 8×1018 eV.

Ethnopharmacological relevance The substantial increase in diabetes cases worldwide has been a major public health problem, and the use of medicinal plants can be considered an interesting alternative to control the disease and its complications. Anacardium humile St. Hill. (Anacardiaceae) is a typical plant from the Brazilian savanna, popularly known for its antidiarrheal, expectorant, antidiabetic and anti-inflammatory properties, however, few studies have fully described its biological properties. This study aimed to investigate in vitro and ex vivo the antioxidant and antiglycation potential of A. humile ethanolic extract, its organic fractions and three isolated molecules (quercetin, catechin and gallic acid), their capacity to inhibit the glycolytic enzyme α-amylase, as well as their cytotoxic effects against RAW264.7 macrophages. Material and methods The ethanolic extract of A. humile, its organic fractions and three isolated molecules (catechin, quercetin and gallic acid) were tested for their antioxidant (ORAC, FRAP and DPPH) and antiglycation (BSA/Fructose, BSA/Methylglyoxal, Arginine/Methylglyoxal and Lysine/Methylglyoxal) capacities, and also for its potential to inhibit the enzyme α-amylase. Additionally, bioactive compounds present in the A. humile leaves fractions were elucidated by an HPLC-ESIMS/MS analysis. Results The analysis showed relevant antioxidant activity of DCM (1264.85 ± 76.90 μM Trolox eq/g ORAC; 216.71 ± 1.04 μM Trolox eq/g FRAP and 3.03 ± 0.08 IC50 μg/mL IC50 DPPH) and EtOAc (1300.11 ± 33.04 ORAC, 236.21 ± 23.86 FRAP and 3.03 ± 0.14 μg/mL IC50 DPPH) fractions and also of the isolated molecules, mainly gallic acid (1291.19 ± 8.41 μM Trolox eq/g ORAC, 1103.52 ± 31.48 μM Trolox eq/g FRAP and 0.78 ± 0.11 μg/mL IC50 DPPH). Concerning the antiglycation activity, all samples inhibited over 88% in the BSA-FRU method. In the BSA-MGO and ARG-MGO methods, the Hex, DCM, EtOAc fractions and the isolated molecule catechin stood out. However, in the LYS-MGO model, only the isolated molecules showed significant results. In α-amylase assay, all fractions, for exception Hex, presented notable inhibition capacity with low IC50 values, especially DCM, EtOAc, ButOH and H2O (IC50 0.56 ± 0.10, 0.84 ± 0.01, 0.74 ± 0.03 and 0.79 ± 0.06 μg/mL, respectively). Tests using hepatic tissue showed a notorious capacity of the DCM, AcOEt and ButOH fractions, as well as of the isolated molecules to inhibit lipid peroxidation and ROS production, and also to preserve thiol groups. Molecules of great antioxidant potential were found in our samples, such as kaempferol, quercetin, catechin, gallic acid and luteolin. Conclusion A. humile extract and its organic fractions showed promising antioxidant and antiglycation potential and a prominent capacity to inhibit the α-amylase enzyme. Hence, this study presents new results and stimulates further research to elucidate the biological properties of A. humile and its capacity to manage DM and its complications.

Ethnopharmacological relevance Pfaffia glomerata roots are widely used in Brazil to treat various pathological conditions, particularly psychological disorders. 20-hydroxyecdysone, a phytosteroid present in the plant, can promote greater body resistance against exogenous and endogenous stressors. The objective of this study was to evaluate the possible neuroprotective effect of a 20-hydroxyecdysone-enriched fraction (20E-EF), obtained from P. glomerata roots, in an acute murine stress model. Material and methods The 20E-EF was obtained by partitioning the methanol extract from P. glomerata roots with dichloromethane. Mice were treated by gavage with three doses of 20E-EF (3, 10, and 30 mg/kg) and parameters of stress, anxiety, and depression were evaluated. Biomarkers of oxidative stress (enzymes, antioxidant profile, and oxidized molecules) were evaluated in the cortex, striatum (basal ganglia), and hippocampus of animals treated with 30 mg/kg of 20E-EF. Results Mass spectrometry revealed that 20E was the main compound in the dichloromethane fraction. At a dose of 30 mg/kg, 20E-EF reduced stress, anxiety, and depression, while stimulating antioxidant enzymes (catalase, superoxide dismutase, and glutathione peroxidase), promoting antioxidant activity (antioxidant capacity, sulfhydryl groups, and reduced glutathione), and reducing oxidative markers (lipid peroxidation). In addition, 20E increased the concentration of NO in the striatum, possibly improving memory function and antioxidant activity. Conclusion A 30 mg/kg dose of 20E-EF was able to reduce stress, anxiety, and depression, in addition to maintaining antioxidant defenses of the cortex and striatum. These findings open new perspectives for understanding the therapeutic properties of P. glomerata and the underlying mechanism(s).

The Río de la Plata Grasslands (RPG) are one of the most modified biomes in the world. Changes in land use and cover affect the RPG's rich biodiversity. In particular, the expansion of crops, overgrazing, afforestation, and the introduction of exotic species pose a major threat to the conservation of biodiversity and ecosystem services (BES). In this study, we applied the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) conceptual framework as a new lens to approach biodiversity conservation enactments in the RPG. First, we systematically reviewed published scientific literature to identify direct and indirect drivers that affect the RPG?s BES. Further, we conducted an extensive analysis of management policies affectingthe BES directly in the region, at a national and international level. We conclude by offering recommendations for policy and praxis under the umbrella of the IPBES framework. As pradarias do Rio da Prata são um dos biomas mais modificados no mundo. Alterações nos usos do solo afetam a rica biodiversidade deste ecossistema. A expansão da agricultura, sobrepastoreio, arborização e a introdução de espécies exóticas, principalmente, representam uma grande ameaça para a conservação da biodiversidade e dos serviços ecossistêmicos (BES). Neste estudo, aplicamos a estrutura conceptual da Plataforma Intergovernamental sobre Biodiversidade e Serviços Ecossistêmicos (IPBES) como uma nova forma de abordar as políticas de conservação da biodiversidade neste bioma. Primeiro, revisamos sistematicamente artigos científicos publicados de forma a identificar fatores diretos e indiretos que afetam os BES nas pradarias do Rio da Prata. Adicionalmente, realizamos uma extensa análise das políticas de gestão que afetam diretamente os BES na região, quer a nível nacional, quer internacional. Concluímos com propostas e recomendações de políticas e práticas sob a égide do quadro do IPBES. Fil: Gorosábel, Antonella. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Mar del Plata. Instituto de Innovación Para la Producción Agropecuaria y El Desarrollo Sostenible. - Instituto Nacional de Tecnologia Agropecuaria. Centro Regional Buenos Aires Sur. Estacion Experimental Agropecuaria Balcarce. Instituto de Innovación Para la Producción Agropecuaria y El Desarrollo Sostenible.; Argentina Fil: Estigarribia, Lucrecia María Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Lopes, Luis Filipe. Universidade Nova de Lisboa; Portugal Fil: Martinez, Ana Maria. University of York; Reino Unido Fil: Martínez-Lanfranco, Juan Andrés. University of Alberta; Canadá Fil: Adenle, Ademola Andrew. University of Bern; Suiza. Federal University of Technology; Nigeria Fil: Rivera-Rebella, Carla. Pontificia Universidad Católica de Chile; Chile Fil: Oyinlola, Muhammed A.. University of British Columbia; Canadá

IMPORTANCE: Early-stage chronic kidney disease (CKD) characterized by microalbuminuria is associated with future cardiovascular events, progression toward end-stage renal disease, and early mortality in patients with type 2 diabetes. OBJECTIVE: To compare the albuminuria-lowering effects of Roux-en-Y gastric bypass (RYGB) surgery vs best medical treatment in patients with early-stage CKD, type 2 diabetes, and obesity. DESIGN, SETTING, AND PARTICIPANTS: For this randomized clinical trial, patients with established type 2 diabetes and microalbuminuria were recruited from a single center from April 1, 2013, through March 31, 2016, with a 5-year follow-up, including prespecified intermediate analysis at 24-month follow-up. INTERVENTION: A total of 100 patients with type 2 diabetes, obesity (body mass indexes of 30 to 35 [calculated as weight in kilograms divided by height in meters squared]), and stage G1 to G3 and A2 to A3 CKD (urinary albumin-creatinine ratio [uACR] >30 mg/g and estimated glomerular filtration rate >30 mL/min) were randomized 1:1 to receive best medical treatment (n = 49) or RYGB (n = 51). MAIN OUTCOMES AND MEASURES: The primary outcome was remission of albuminuria (uACR

The matter formed in central heavy-ion collisions at a few GeV per nucleon is commonly understood as resonance matter, a gas of nucleons and excited baryon states with a substantial contribution from mesonic, mostly pionic excitations. Yet, in the initial phase of the reaction the system is compressed to beyond nuclear ground state density and hence substantial modifications of the hadron properties are expected to occur. The spectral distribution of virtual photons measured in Au+Au collisions at 2.4 GeV center of mass energy indicates strong medium effects beyond pure superposition of individual NN collisions. We present multi-differential distributions of low-mass electron pairs. This radiation is remarkably well described assuming emission from a thermalized system. To gain deeper understanding of the microscopic origin of the radiation, we extracted the centrality dependent true (not blue-shifted) temperature, its azimuthal distribution, as well as mass-dependent effective slope parameter. Virtual photon spectra are confronted with available model calculations.

As oil and gas exploration and production extends to deeper buried reservoirs, challenges such as lower porosities and Ultra High Temperature have been encountered. Several reservoirs in the Asian region, the North Malay basins in the joint development area between Thailand and Malaysia, and the Baiyun Sag and Qiong Dongnan basin in offshore China are considered to have the highest known temperature gradients due to their geological depositional system and hydrocarbon charging mechanism. More than fifty percent of wells drilled in these areas have temperature close to/or higher than 170 degC, and some reach above 200 degC. In number a of projects in these areas, the logging requires tools that can withstand up to 230 degC.Traditional, wireline Formation Testers (FT) with fixed rate and volume pre-test and old sampling technique using a dumping chamber (i.e. without pumping capability) had been the standard formation tester when temperatures reached 400degF (204 degC) and higher. The tools were not flasked and therefore, the temperature transient affected the quality and accuracy of pressure data1,2. Also, in such harsh environment, it is very difficult and time consuming to go back to a good mobility station for sampling after pressure measurement, due to reservoir heterogeneity and depth error.This paper discusses a project for a new slim hole ultrahigh temperature Wireline Formation Tester designed to obtain both pressure profiles and perform downhole Pressure Volume Temperature (PVT) *Trademark of Schlumberger fluid sampling with pump-out capability and downhole fluid sensors such as viscosity, density and resistivity in extreme HT environments. In addition, this slim hole ultrahigh temperature tool dimension has more clearance between the tool and formation, and therefore, less chance of having this tool get stuck during slim hole logging.The tool was first deployed in the North Malay Basin and since early 2018, new well head platform with five development wells were logged where a total of 76 pre-tests, four pump-out and ten fluid sampling stations were conducted. The main objectives for this FT tool were to obtain formation pressure, identify reservoir fluid and quantitative CO2 measurements zone by zone. The results will be discussed operationally and technically, in terms of data quality and accuracy and compared with on-site surface analysis. In addition, this tool improves significantly operationally compared to the previous tools and with some operators having mixed perceptions on running Wireline FT tool with bigger ODs, especially drilling departments, having this new slim hole with its smaller OD increases their confidence level in running it.For Deepwater Offshore China, an operator has been facing challenges to explore a brand-new block such as pore pressure distributions profile, reservoir quality, and extended logging period. The main objectives for the extreme FT are to obtain the formation pressure for drilling purpose, to understand reservoir potential to optimize the perforation interval for Drill Stem Test, and to narrow logging operation time window due to seasonal weather. This new ultra-high slim hole was therefore proposed to log in this challenging environment. This field example shows a significantly improved pre-test and sampling capability in the lower mobility ranges, which some previous generations of formation testers had struggled with in the past, in one run and without sacrificing testing efficiency The effective time for valid pretest can be achieved even in the range of mobility 0.01 mD/cp, high pressure of > 11000 psi, and high temperature of >180 degC.This paper discusses pre-job planning and actual job execution results in both locations. The challenges of logging and lesson learned are addressed. This is the first attempt in evaluating reservoirs in the deeper and HT sections to properly understand reservoir fluids.

Os corantes sintéticos apresentam uma grande aplicabilidade em diversos segmentos da indústria. Na indústria têxtil, devido às ineficiências nos processos de tingimento, 200.000 toneladas por ano desses produtos passam para o efluente industrial, sendo parte dele despejada no meio ambiente sem tratamento prévio. Quando lançados em corpos hídricos mesmo em pequenas concentrações, os corantes podem afetar o processo de fotossíntese dos organismos presentes, devido à diminuição da penetração solar, causando um desequilíbrio no ecossistema. Dessa forma, se faz necessária a realização de um método de tratamento capaz de remover esses compostos. No caso dos corantes solúveis, os processos envolvendo adsorção se mostram eficazes em sua remoção. Com isso, este trabalho tem como objetivo produzir e caracterizar carvão ativado obtido a partir do bagaço de cana-de-açúcar, determinar sua eficiência no processo de adsorção do corante Erionyl Yellow A-R, bem como utilizar técnicas estatísticascom a finalidade de avaliare otimizar os diferentes parâmetros do processo de adsorção desse corante no carvão ativado. O resultado das caracterizações do adsorvente mostrou grande presença de microporos, resultando numa área específica superior a 1200 m²g. Os ensaios de adsorção foram realizados variando-se o pH e a temperatura do meio. Através dos dados obtidos estatisticamente, verificou-se que as variáveis estudadas apresentaram efeitos significativos, dentro da faixa de níveis experimentais estudada, extrapolando a linha de referência correspondente ao intervalo de confiança de 95%. Verificou-se também que o ensaio a 30°C e pH 2 obteve a maior quantidade de corante adsorvido pelo carvão ativado (q), atingindo um valor de 61,1 mg/g Synthetic dyes are widely applicable in various industry segments. In the textile industry, due to inefficiencies in dyeing processes, 200,000 tons per year of these products mix with the industrial effluent, part of which is discharged into the environment without previous treatment. When released into water bodies, even in small concentrations, the dyes can affect the photosynthesis process of living beings, due to decreased solar penetration, causingan imbalance in the ecosystem. In this sense, a treatment method capable of removing these compounds is required. In the case of soluble dyes, the processes involving adsorption are effective in their removal. Thus, this work aims to produce and characterize activated charcoal obtained through sugarcane,determine its efficiency in the process of adsorption of Eryonil Yellow A-R, and utilize statistical techniques intended to evaluate and optimize different parameters of the process of adsorption of this dye in activated charcoal. The results of characterization of the adsorbent has indicated a large presence of micropores, resulting in a specific area greater than 1200 m2g-1. The adsorption experiments were conducted while varying the pH and temperature ofthe medium. From the statistical data analysis, it was possible to confirm that these variables presented significant effects, within confidence interval of 95%. Furthermore, the experiment at 30°C and pH 2 presented the greater amount of dye adsorbed by activated charcoal (q), reaching a value of 61,1 mg/g

In this paper, the study of an acid and thermal treatment in a mixture of niobium and tantalum oxides obtained from columbite mineral was performed. Initially, the mineral was physically prepared by milling and sifting, followed by characterization by X-ray diffraction (XRD), X-ray fluorescence (XRF) and Scanning Electron Microscope (SEM). Subsequently, the mineral performed an acid leaching in order to remove iron and manganese present in its composition. A second acid leaching was necessary to eliminate the persistent cassiterite impurity by precipitation of Nb and Ta hydrated oxides. These oxides were characterized by XRF, XRD and SEM. Then the oxides were calcined at 800 °C, 900 °C and 1000 °C at different heating rates and calcination times to study their crystallization. The mixed oxides were characterized by XRF, XRD, SEM and nitrogen adsorption (BET method). The influence of heating rate was verified at 800 °C. An increase in crystal size was observed when the rate was reduced from 10 °C.min−1 to 5 °C.min−1. Greater crystallinity and formation of peaks related to the change of phase from hexagonal to orthorhombic were observed when the temperature was raised from 800 °C to 900 °C. At the temperature of 1000 °C, intermediate and low peaks related to formation of monoclinic phase of niobium pentoxide were observed. The change in calcination time from 5 h to 10 h at 1000 °C caused reduction in Nb2O5 to NbO2 and a decrease in crystal size and hence an increase in the surface area. The oxides heated at 900 °C showed the largest surface area.

2029 It was initially used a 23 experimental design with central point in triplicate to synthesize strontium molybdate by EDTA-citrate combined complexation method, where the influence of pH (6, 7.5 e 9), calcining time (3, 4 e 5 h) and heating rate (5, 7 e 10 °C min−1) was investigated. Single-phase powders were obtained when calcined at 650 °C with tetragonal crystalline structure. The heating rate is the most influent independent variable on the intensities of the X-ray diffractions peaks. The synthesized powders are shown as agglomerates with irregular spherical and bipyramidal morphology. According to the experimental design, the conditions of calcining time of 3 h and heating rate of 10 °C min−1 show the lowest values of energy band gap (4.18 and 4.17 eV) for pH 6 and 9, respectively. The statistical models generated were able to describe the phenomena observed

The objective of this work was to assess polymorphisms within Litopenaeus vannamei candidate genes related to growth performance, and a possible association between weight genotypes and phenotypes in two shrimp closed lines. Three EST-SSR (serine-arginine, 60S ribosomal, and troponin) and one EST-SNP (crustacyanin) were selected and evaluated in L. vannamei and seven other marine shrimp species, besides two freshwater species. Genotypes had no effect on total body weight. Although no association was observed in the sampled population, these markers showed amplification for most of the evaluated species and, therefore, may be useful in further genetic studies on shrimp species. Resumo: O objetivo deste trabalho foi avaliar polimorfismos em genes candidatos de Litopenaeus vannamei relacionados ao crescimento, e uma possível associação entre genótipos e fenótipos de peso em duas linhagens fechadas de camarão. Três SSR-EST (serina-arginina, 60S ribossomal e troponina) e um SNP-EST (crustacianina) foram selecionados e avaliados em L. vannamei e sete outras espécies de camarão marinho, além de duas espécies de água doce. Os genótipos não tiveram efeito significativo sobre o peso corporal total. Embora não tenham sido observadas associações na população amostrada, esses marcadores puderam ser amplificados para a maioria das espécies avaliadas e podem ser úteis em estudos genéticos adicionais em espécies de camarão.

HADES has a large acceptance combined with a good mass-resolution and therefore allows the study of dielectron and hadron production in heavy-ion collisions with unprecedented precision. With the statistics of seven billion Au-Au collisions at 1.23A GeV recorded in 2012, the investigation of higher-order flow harmonics is possible. At the BEVALAC and SIS18 directed and elliptic flow has been measured for pions, charged kaons, protons, neutrons and fragments, but higher-order harmonics have not yet been studied. They provide additional important information on the properties of the dense hadronic medium produced in heavy-ion collisions. We present here a high-statistics, multidifferential measurement of v 1 and v 2 for protons in Au+Au collisions at 1.23A GeV.

Cerium molybdate semiconductive nanoparticles were synthesized by the EDTA-citrate combined complexation method. Gel thermal degradation behavior, phase formation, morphology, composition and band gap of cerium molybdate powders were characterized by TG/DSC, XRD, SEM/EDS and DRS analysis, respectively. The nanoparticles were synthesized by fixing the pH of the reaction medium to 9, producing an organometallic gel which was heated to 230 ºC obtaining a precursor powder. The precursors were calcined in a temperature range of 450 - 800 ºC for 3 h. The cerium molybdate powders were characterized and the phase evolution, morphology and band gap changes with the increase of calcining temperature were investigated. It was observed that the calcining temperature directly influences the formation of the crystalline structure, appearance of other phases in the materials and the particle size.

Objective To compare resting metabolic rate values determined by indirect calorimetry with values estimated using different predictive equations in lean and overweight postmenopausal women. Methods Twenty-four women, who had stopped menstruating for at least two years, were subjected to anthropometric measurements and indirect calorimetry after 12-hour overnight fasting to determine, mathematically and experimentally, resting metabolic rate values. Results There was no difference in the indirect calorimetry values between the groups evaluated. Difference values of resting metabolic rate were obtained with all equations used. For the lean women, there was no difference between the values obtained by indirect calorimetry and those estimated using the equations proposed by Food and Agricultural Organization, Fredix, Lazzer, and Schofield. However, in the overweight group, the resting metabolic rate values estimated using the Institute of Medicine, Berstein and Owen equations were different from those obtained by indirect calorimetry. Conclusion This study suggests that differences in body composition in postmenopausal women influence the accuracy of predictive equations, demonstrating the need for more accurate estimation methods for resting metabolic rate in postmenopausal women with different body compositions.