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Performa.c. of evolutionary optimized machine learning for modeling total organic carbon in core samples of shale gas fields

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Petroleum 2024年第1期10卷 150-164页

作者： Leonardo Goliatt c.M.Saporetti L.c.Oliveira E.pereira Department of computational and Applied Mechanics Federal University of Juiz de Fora Department of computational Modeling Polytechnic Institute Rio de Janeiro State University Petrobras Department of Stratigraphy and Paleontology Rio de Janeiro State University

Rock samples' TOc content is the best indicator of the organic matter in source rocks. The origin rock samples' analysis is used to ca.c.late it manually by specialists. This method requires time and resources because it relies on samples from many well intervals in source rocks. Therefore, resea.c. has been done to aid this effort. Machine learning algorithms can estimate total organic carbon instead of well logs and stratigraphic studies. In light of these efforts, the current work present a study on automating the total organic carbon estimation using machine learning approaches improved by an evolutionary methodology to give the model flexibility and precision. Genetic algorithms, differential evolution, particle swarm optimization, grey wolf optimization, artificial bee colony, and evolution strategies were used to improve machine learning models to predict TOc. The six metaheuristics were integrated into four machine learning methods: extreme learning machine, elastic net linear model, linear support vector regression, and multivariate adaptive regression splines. core samples from the YuDong-Nan shale gas field, located in the Sichuan basin, were used to evaluate the hybrid strategy. The findings show that combining machine learning models with an evolutionary algorithms in a hybrid fashion produce flexible models that a.c.rately predict TOc. The results show that, independent of the metaheuristic used to guide the model selection, optimized extreme learning machines attained the best performa.c. scores a.c.rding to six metrics. Such hybrid models can be used in exploratory geological resea.c.,particularly for unconventional oil and gas resources.

关键词： Total organic carbon Hybrid models Automated machine learning Evolutionary algorithms Geology

Litter production and leaf nutrient concentration and remobilization in response to climate seasonality in the central Amazon

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Journal of Forestry Resea.c. 2024年第3期35卷 131-141页

作者： Ricardo Antonio Marenco Saul Alfredo Antezana-Vera Daniela pereira Dias Luiz Antonio candido Instituto Nacional de Pesquisas da Amazonia Coordenagao de Uso da Terra e Mudanca ClimaticaAv.Andre Araujo 2936ManausAM69067-375Brazil Programa de pos-Graduagao em Agricultura no Tropico Umido Instituto Nacional de Pesquisas da Amazonia-INPAManausAMBrazil Unidade Academica de ciencias Agrarias Universidade Federal de JataiBR 364km 195JataiGO 75801-615Brazil

Litterfall is the largest source of nutrients to for-est soils of tropical ***,variability in lit-terfall production,nutrient remobilization,and changes in leaf nutrient concentration with climate seasonality remain largely unknown for the central *** study meas-ured litterfall production,leaf nutrient remobilization,and leaf area index on a forest plateau in the central *** was measured at monthly intervals during 2014,while nitrogen,phosphorus,potassium,ca.c.um and mag-nesium concentrations of leaf litter and canopy leaves were measured in the dry and rainy seasons,and remobilization rates *** area index was also recorded in the dry and rainy *** litterfall varied from 33.2(in the rainy season)to 87.6 g m^(-2) in the dry season,while leaf area index increased slightly in the rainy *** seasonality had no effect on concentrations of nitrogen,ca.c.um,and magnesium,whereas phosphorous and potassium responded to rainfall seasonality *** phosphorous increased,potassium decreased during the dry *** seasons,nitrogen,potassium,and phosphorous decreased in leaf litter;ca.c.um increased in leaf litter,while magnesium remained unaffected with leaf ***,the five nutrients had similar remobilization rates over the *** absence of climate seasonality on nutrient remobilization suggests that the current length of the dry season does not alter nutrient remobilization rates but this may change as dry periods become more prolonged in the future due to climate change.

关键词： Throughfall Nutrient cycling climatic seasonality Leaf mass per area

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健康巴西人群的高敏感性c-反应蛋白浓度

世界核心医学期刊文摘（心脏病学分册） 2005年第5期1卷 43-44页

作者： Araújo F. pereira a.c. Latorre M.D.R.D.O. 郝广华 Heart Institute (Incor) Univ. of S. Paulo Medical School Gen. Outpatient Clinics Av. Dr. E. S. ao Paulo Brazil

Background: The use of serum high-sensitivity c-reactive protein(hs-cRP) for cardiova.c.lar risk profiling requires knowledge of the distribution in different populations. We studied serum hs-cRP in a healthy Brazilian population, with no evidence of heart disease, relative to gender and smoking status as well as other clinical and laboratory variables. Methods: 684 healthy Brazilian individuals, aged 14-74 years(mean 40-.6 years), 295 men(43.1%) and 389 women(56.9%), were enrolled between July 1998 and July 2001. The relationship between the log-transformed hs-cRP, stratified by gender and smoking status(non-smokers, smokers), and clinical and laboratory variables were analyzed using the Spearman correlation coefficient and multiple linear regression. Results: In a multiple linear regression model age(β=1.0069, p=0.03), body mass index(BMI) (β=1.0093, pcholesterol/HDL cholesterol ratio(Tc/HDL-c)(β=1.1015, pcorrelated with hs-cRP. Stratification a.c.rding to gender and smoking was able to disclose different interactions between these variables and hs-cRP. Variables significantly correlated in each stratum were as follows: in smoker men, age(β=1.0236, p=0.04) and Tc/HDL-c (β=1.2065, pc/HDL-c(β=1.1397, p=0.01); in smoker women, BMI(β=1.1006, p=0.03); and in non-smoker women, BMI (β=1.0873, pc/HDL-c(β=1.1405, p=0.01) and heart rate(β=1.0165, p=0.02). conclusions: The clinical and laboratory variables studied influenced the concentration of hs-cRP a.c.rding to gender and smoking. In assessing the risk of cardiova.c.lar events in relation to serum hs-cRP level, stratification by gender and smoking status is indicated.

关键词：高敏感性 c-反应蛋白蛋白浓度吸烟状况巴西人心血管事件风险度总胆固醇心血管病月将

Prognosis value of heat-shock proteins in esophageal and esophagogastric ca.c.r:A systematic review and meta-analysis

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World Journal of Gastrointestinal Oncology 2024年第4期16卷 1578-1595页

作者： Eric Toshiyuki Nakamura Amanda Park Marina Alessandra pereira Daniel Kikawa Fra.c.sco Tustumi Department of Gastroenterology Instituto do CâncerHospital das Clínicas da Universidade de São PauloFaculdade de MedicinaUniversidade de São PauloSão Paulo 01246000Brazil Department of Scientific Initiation Universidade Mogi das CruzesSão Paulo 08780911Brazil Department of Evidence-Based Medicine Centro Universitário LusíadaCentre for Evidence-Based MedicineCentro Universitário Lusíada(UNILUS)SantosBrazil Department of Surgery Hospital Israelita Albert EinsteinSão Paulo 05652900Brazil

BAcKGROUND Heat shock proteins(HSPs)are molecular chaperones that play an important role in cellular protection against stress events and have been reported to be overex-pressed in many *** prognostic significa.c. of HSPs and their regulatory factors,such as heat shock factor 1(HSF1)and cHIP,are poorly *** To investigate the relationship between HSP expression and prognosis in esophageal and esophagogastric *** A systematic review was conducted in a.c.rda.c. with PRISMA recommend-ations(PROSPERO:cRD42022370653),on Embase,PubMed,cochrane,and ***,case-control,and cross-sectional studies of patients with eso-phagus or esophagogastric ca.c.r were ***-positive patients were compared with HSP-negative,and the endpoints analyzed were lymph node metastasis,tumor depth,distant metastasis,and overall survival(OS).HSPs were stratified a.c.rding to the HSP family,and the summary risk difference(RD)was ca.c.lated using a random-effect *** The final selection comprised 27 studies,including esophageal squamous cell ca.c.noma(21),esophagogastric adenoca.c.noma(5),and mixed neoplasms(1).The pooled sample size was 3465 ***40 and 60 were associated with a higher 3-year OS[HSP40:RD=0.22;95%confidence interval(cI):0.09-0.35;HSP60:RD=0.33;95%cI:0.17-0.50],while HSF1 was associated with a poor 3-year OS(RD=-0.22;95%cI:-0.32 to-0.12).The other HSP families were not associated with long-term ***1 was associated with a higher probability of lymph node metastasis(RD=-0.16;95%cI:-0.29 to-0.04).HSP40 was associated with a lower probability of lymph node dissemination(RD=0.18;95%cI:0.03-0.33).The expression of other HSP families was not significantly related to tumor depth and lymph node or distant *** The expression levels of certain families of HSP,such as HSP40 and 60 and HSF1,are associated with long-term survival and lymph node dissemination in patients with esophageal and esophagogastric ca.c.r.

关键词： Heat-shock proteins Heat-shock response Prognosis Esophageal neoplasms Meta-analysis

The effect of abiotic stresses on plant c:N:P homeostasis and their mitigation by silicon

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The crop Journal 2024年第2期12卷 340-353页

作者： Milton Ga.c.a.c.sta Renato de Mello Prado Luiz Fabiano Palaretti Jonas pereira de Souza Júnior Department of Agricultural Production Science School of Agricultural and Veterinarian SciencesSão Paulo State UniversityJaboticabalBrazil

In crop plants, various environmental stresses affect the bala.c. of carbon, nitrogen, and phosphorus(c:N:P), leading to biochemical and physiological alterations and reductions in yield. Silicon(Si) is a beneficial element that alleviates plant stress. Most studies involving silicon have focused on physiological responses, such as improvements in photosynthetic processes, water use efficiency, and antioxidant defense systems. But recent resea.c. suggests that stressed plants facing either limited or excessive resources(water, light, nutrients, and toxic elements), strategically employ Si to maintain c:N:P homeostasis, thereby minimizing biomass losses. Understanding the role of Si in mitigating the impact of abiotic stresses on plants by regulating c:N:P homeostasis holds great potential for adva.c.ng sustainable agricultural practices in crop production. This review presents recent adva.c.s in characterizing the influence of environmental stresses on c:N:P homeostasis, as well as the role of Si in preserving c:N:P equilibrium and attenuating biological damage associated with abiotic stress. It underscores the beneficial effects of Si in sustaining c:N:P homeostasis and increasing yield via improved nutritional efficiency and stress mitigation.

关键词： Nutritional stoichiometry Elemental stoichiometry Beneficial element Environmental stresses Nutritional efficiency carbon use efficiency Agricultural sustainability

carbon Monoxide as c1 Building Block in Fine chemical Synthesis

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chinese Journal of chemistry 2024年第2期42卷 199-221页

作者： Rui M.B.carrilho Mario J.F.calvete Gabor Mikle Laszlo Kollar Mariette M.pereira University of coimbra Coimbra Chemistry CentreDepartment of ChemistryRua Larga3004-535 CoimbraPortugal Department of General and Inorganic chemistry and ELKH-PTE Resea.c. Groupfor Selective chemical Syntheses University of PecsIfjusag utja 6H-7624 PecsHungary

carbon monoxide(cO)has become one of the most relevant and versatile renewable c1 building blocks for chemical synthesis,especially in the fine chemicals industry,due to the development of efficient and selective catalysts for its *** this review,we present a.c.mprehensive critical analysis of the last 10 years literature on the use of cO as a renewable feedstock for fine chemicals *** review is organized by type of catalytic reaction,namely alkene and alkyne carbonylation,hydroformylation,carbonylation of aryl halides,carbonylative cross-coupling and c-H *** examples of the synthesis of relevant building blocks and/or known pharmaceuticals are *** is placed on examples of utilizing cO as the c1 building block in one or more catalytic *** catalyst used and the reaction conditions are consistently presented throughout all of the examples.

关键词： carbon monoxide Fine chemicals carbonylation Hydroformylation c-H functionalization

Bioremediation Potential of the Macroalga Ulva lactuca (chlorophyta) for Ammonium Removal in Elastomer Industry Wastewater

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Adva.c.s in Bioscience and Biotechnology 2024年第6期15卷 325-343页

作者： Diego Lelis Alex Enrich-Prast camille R. chaves Thuane Mendes Anacleto Roberta R. c. pereira Vinicius P. de Oliveira Programa de Ps-Graduao em Biotecnologia Vegetal e Bioprocessos Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Unidade Multiusurio de Anlises Ambientais Universidade Federal do Rio de Janeiro Rio de Janeiro Brazil Institute of Marine Science Federal University of So Paulo (IMar/UNIFESP) Santos Brazil Department of Thematic StudiesEnvironmental change and Biogas Solutions Resea.c. center (BSRc) Linkping University Linkping Sweden Department of Marine Biology Institute of Biology Federal University of Rio de Janeiro Rio de Janeiro Brazil

During the production of nitrile rubber, significant amounts of nitrogen in the form of ammonium are generated in the wastewater. The discharge of this high-nitrogen wastewater can lead to serious environmental issues, including eutrophication, disruption of aquatic ecosystems, and groundwater contamination. To mitigate these impacts, this resea.c. explored the bioremediation capabilities of the macroalgae Ulva lactuca (chlorophyta) for removing nitrogen from nitrile rubber production wastewater. The study employed single-phase and Michaelis-Menten decay models based on ammonium consumption, using various dilutions of wastewater to identify the optimal concentration for treatment. The physiological state of the macroalgae was monitored by measuring the photosynthetic capacity and specific growth rate during the experiments. In the presence of U. lactuca, ammonium concentrations decreased in all treatment groups, confirming that the ammonium kinetics conformed to both applied models. Our results show that U. lactuca effectively reduces ammonium concentrations, with an approximate removal rate of 0.020 µM·g−1·min−1 across different wastewater concentrations (70%, 80%, 90%, and 100%). Notably, the treatments with 70%, 80%, and 90% wastewater strength achieved about 67% reduction in ammonium, demonstrating the alga’s capacity to treat high-nitrogen wastewater. The photosynthetic performa.c. of U. lactuca initially declined in control conditions but stabilized across all treatments, highlighting its adaptability. The kinetic analysis using the Michaelis-Menten model indicated a Vmax of 1342 μM·g−1·DMh−1, suggesting a robust capacity for ammonium uptake when fully saturated. Our study underscores the potential of Ulva lactuca as a.c.st-effective and efficient agent for wastewater bioremediation, particularly in settings with high nitrogen loads.

关键词： Photosynthetic Quantum Yield One-Phase Decay Model Michaelis-Menten Model Nitrogen Physiological Parameters Elastomers

Urban Soil compaction Remediation by Shallow Tillage and compost in Hydroseeded Lawn

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Open Journal of Soil Science 2024年第7期14卷 399-415页

作者： James Jihoon Kang Adam Flores Engil Isadora Pujol pereira Jungseok Ho School of Earth Environmental and Marine Sciences University of Texas Rio Grande Valley Edinburg Texas USA Environmental Health and Safety University of Texas Health San Antonio San Antonio Texas USA Department of civil Engineering University of Texas Rio Grande Valley Edinburg Texas USA

construction activities often involve removal of topsoil and compaction of the exposed soil by heavy equipments. Such compacted soils with low organic matter can lead to low infiltration and poor vegetation establishment. The objective of this study was to investigate the efficacy of tillage (shallow till) and compost on soil physical and biological properties in a hydroseeded lawn as a post-construction best management practice for soil compaction remediation. The experimental site received a total of four land treatments in five replicated trials and it was hydroseeded with common Bermuda grass: 1) No Tillage + compost (NT-c), 2) No Tillage + No compost (NT-Nc;control), 3) Tillage + compost (T-c), and 4) Tillage + No compost (T-Nc). Bulk density (BD), infiltration rate (IR), and wet aggregate stability (WAS) in each plot were measured to assess soil physical properties while soil organic matter (SOM) and enzyme activity (β-glucosidase, acid-phosphatase, and alkaline-phosphatase) were measured for soil biological properties. Over a 15-months of monitoring period, the shallow tillage loosened the soil initially, but its effect on BD without compost was diminished to control plot level (NT-Nc) within 4 months after hydroseeding. Both tillage and compost led to an increase in IR, and it remained higher than control by 2 - 3 times throughout the observation period. The WAS and β-glucosidase activity decreased in tilled plot unless there was compost application. Turfgrass showed greener leaves and aggregated roots in the compost-amended plots (NT-c and T-c). Our results suggest that compost application plays a key role in improving soil physical and biological properties in hydroseeded lawns from construction sites.

关键词： compaction compost Infiltration Soil Organic Matter Soil Enzyme Tillage Wet Aggregate Stability

Preclinical and clinical evidence of the association of colibactinproducing Escherichia.c.li with anxiety and depression in colon ca.c.r

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World Journal of Gastroenterology 2024年第21期30卷 2817-2826页

作者： Fabien Rondepierre Maëva Meynier Johan Gagniere Vincent Deneuvy Anissa Deneuvy Gwenaelle Roche Elodie Baudu Bruno pereira Richard Bonnet Nicolas Barnich Frédéric Antonio carvalho Denis Pezet Mathilde Bonnet Isabelle Jalenques Service de Psychiatrie de l’Adulte A et Psychologie Médicale CHU Clermont-FerrandClermont-Ferrand 63000France M2iSH UMR 1071INSERMUniversity of Clermont AuvergneINRAE USC 1382Clermont-Ferrand 63001France NeuroDol UMR 1107INSERMUniversity of Clermont AuvergneClermont-Ferrand 63001France Department of Digestive Surgery CHU de Clermont-FerrandClermont-Ferrand 63001France Biostatistics Unit Department of Clinical Research and InnovationCHU Clermont-FerrandClermont-Ferrand 63000France Department of Bacteriology CHU de Clermont-FerrandClermont-Ferrand 63001France Universitéclermont Auvergne INPCNRSClermont Auvergne Institut PascalClermont-Ferrand 63000France

BAcKGROUND The association between the intestinal microbiota and psychiatric disorders is becoming increasingly *** gut microbiota.c.ntributes to colorectal ca.c.nogenesis(cRc),as demonstrated with colibactin-producing Escherichia.c.li(coPEc).AIM To evaluate the association between coPEc prevalence and anxiety-and depressive-like behaviors with both preclinical and clinical *** Patients followed after a.c.c surgery and for whom the prevalence of coPEc has been investigated underwent a psychiatric *** were compared a.c.rding to the coPEc *** parallel c57BL6/J wild type mice and mice with a.c.c susceptibility were chronically infected with a.c.PEc *** behavior was assessed using the Elevated Plus Maze test,the Forced Swimming Test and the Behavior recognition system PhenoTyper®.RESULTS In a limited cohort,all patients with coPEc colonization presented with psychiatric disorders several years before ca.c.r diagnosis,whereas only one patient(17%)without coPEc *** result was confirmed in c57BL6/J wildtype mice and in a.c.c susceptibility mouse model(adenomatous polyposis colimultiple intestinal neoplasia/+).Mice exhibited a significant increase in anxiety-and depressive-like behaviors after chronic infection with a.c.PEc *** This finding provides the first evidence that coPEc infection can induce microbiota-gut-brain axis disturba.c.s in addition to its proca.c.nogenic properties.

关键词： colorectal ca.c.r colibactin Escherichia.c.li colibactin-producing Escherichia.c.li Inflammation Anxiety Depression Behavior