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Volatile organic compounds emitted by Megaplatypus mutatus associated fungi: chemical identification and temperature-modulated responses by the ambrosial beetle

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Ecological Processes 2024年第2期13卷 3-15页

作者： Esteban D.Ceriani-Nakamurakare Mariel Slodowicz cecilia Carmarán Paola Gonzalez-Audino Instituto de Micología y Botánica (INMi Bo) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Departamento de Ingeniería Agrícola y Uso de la Tierra Facultad de Agronomía Universidad de Buenos Aires (UBA) Centro de Investigaciones de Plagas e Insecticidas (CIPEIN) Unidad de Investigación y Desarrollo Estratégico Para la Defensa (UNIDEF) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET ) Departamento de Biodiversidad y Biología Experimental (DBBE) Facultad de Ciencias Exactas y Naturales (FCEy N) Universidad de Buenos Aires (UBA)

Background In ambrosia and bark beetles–fungi interaction, volatile organic compounds(VOCs) play a central role in mediating various aspects of community dynamics of beetles and/or fungi. These functions include facilitating beetle habitat location, mate identification, and fungal partner differentiation. However, the understanding on this context remains limited, especially in the globally distributed subfamily Platypodinae, which comprises predomi-nantly ambrosia beetles. There is a lack of chemical data on ambrosia fungi from native South American species. This study addresses this gap by characterizing VOCs from twelve fungal species associated with Megaplatypus mutatus and assessing species-specific behavioral responses during *** Fungal VOCs were collected by gas chromatography–mass spectrometry combined with solid-phase microextraction and Y-olfactometry assays of males and females were performed at dispersal stage. Statistical analyses involved: non-metric multidimensional scaling multivariate plot and PERMANOVA test, a cluster analysis through unweighted pair group method with Jaccard index, and finally, a chi-square goodness-of-fit test for beetle behavioral *** We identified 72 VOCs from the fungal species isolated from M. mutatus galleries, exocuticle, and gut. The olfactory behavior of M. mutatus demonstrated its capacity to discriminate between volatile profiles, showing a pref-erence for either the fungus or the control source. Our results also enhance the understanding in a chemotaxonomic context and in the behavioral responses of M. mutatus revealing the beetle's remarkable low temperature toler-ance and its capability to maintain mobility and orientation toward volatile sources even after zero-degree Celsius *** This study presents a comprehensive insight into fungal VOC profiles, emphasizing the sources of isola-tion within pest associated fungi, as well as its symbiotic species from the Raffaelea genus. In

关键词： Ambrosia Raffoelea Fusorium Volatiles Platypodinae Megaplatypus Olfactory behavior Chemotaxonomic Freezing condition

A global analysis of CO_(2)and non-CO_(2)GHG emissions embodied in trade with Belt and Road Initiative countries

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Ecosystem Health and Sustainability 2020年第1期6卷 18-37,17页

作者： Jing Hou Xu Deng cecilia Han Springer Fei Teng Institute of Energy Environment and EconomyTsinghua UniversityBeijingChina Belfer Center for Science and International Affairs Harvard Kennedy SchoolCambridgeMAUSA

Introduction:The Belt and Road Initiative(BRI)is an important cooperative framework that increasingly affects the global economy,trade,and emission ***,most existing studies pay insufficient attention to consumption-based emissions,embodied emissions,and non-CO_(2) greenhouse gases(GHGs).This study constructs a GHG emissions database to study the trends and variations in production-based,consumption-based,and embodied emissions associated with BRI ***:We find that the per capita GHG emissions of BRI countries are lower than the global average but show significant variation within this *** also find that trade-embodied emissions between BRI countries and China are *** a group,BRI countries are anet exporter of GHGs,with a global share of net export emissions of about 20%.In 2011,nearly 80%of GHG export emissions from BRI countries flowed to non-BRI countries,and nearly 15%flowed to China;about 57%of GHG import emissions were from non-BRI countries,and about 38%were from ***:Therefore,this study concludes that the BRI should be used to coordinate climate governance to accelerate and strengthen the dissemination and deployment of low-emissions technologies,strategies,and policies within the BRI so as to avoid a carbon-intensive lock-in effect.

关键词： Belt and Road Initiative(BRI) China consumption-based emissions non-CO_(2)greenhouse gas(NCO2) embodied emissions global multi-regional input-output model(MRIO)

Indirect calorimetry in obese female subjects: Factors influencing the resting metabolic rate

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World Journal of Experimental Medicine 2012年第3期2卷 58-64页

作者： Theresa Hagedorn Eleonora Poggiogalle Claudia Savina cecilia Coletti Maddalena Paolini Luciano Scavone Barbara neri Lorenzo Maria Donini Rehabilitation Clinical Institute "Villadelle Querce" Nemi 00040 Rome Italy Department of Experimental Medicine Medical Physiopathology Food Science and Endocrinology Section Food Science and Human Nutrition Research Unit Sapienza University of Rome

AIM: To evaluate selected factors influencing resting energy expenditure(REE) in obese female ***: Seventy seven 61 obese Caucasian women [mean age of 52.93 ± 13.45 years, and mean body mass index(BMI) of 41.78 ± 11.54 kg/m2] were enrolled; measurements of resting metabolic rate(RMR) by a ventilated, open-circuit system, indirect calorimeter were performed after an overnight fast. Body composition as well as medications, physical parameters, blood samples, disease pattern, and smoking were considered. RESULTS: RMR was significantly associated with body weight(r = 0.732, P < 0.001), body height(r = 0.401,P = 0.008), BMI(r = 0.504, P < 0.001), waist circumference(r = 0.602, P < 0.001), mid-upper arm circumference(r = 0.417, P = 0.006), mid-upper arm muscle circumference(r = 0.344, P = 0.028), total body water(r = 0.339, P = 0.035), body temperature(r = 0.409, P = 0.007), smoking(P = 0.031), serum T4 levels(r = 0.331, P = 0.036), obstructive sleep apnoea syndrome(OSAS; P = 0.023), impaired glucose tolerance(IGT; P = 0.017) and impaired glycaemic status, including hyperinsulinism, IGT and diabetes mellitus(P = 0.003).CONCLUSION: Future research should be prompted to optimize the procedure of indirect calorimetry to achieve clinical benefits in obese subjects.

关键词： Indirect calorimetry Obesity Resting metabolic rate Resting energy expenditure

Prevalence of metabolic syndrome in children aged 5-9 years from southwest colombia:a cross-sectional study

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World Journal of Pediatrics 2016年第4期12卷 477-483页

作者： Milton Fabian Suarez-Ortegón cecilia Aguilar-de Plata Centre for Population Health Sciences University of EdinburghEdinburgh Nutrition Group University of ValleCaliColombia Physiological Sciences Department University of ValleCaliColombia

Background:Exploration of cardiometabolic alterations in the pre-adolescent stage is necessary to characterize possible patterns for matabolic syndrome(MetS)in the earliest stages of the ***,defining specific cut-off points for metabolic and vascular markers represents a complex task in pre-adolescent *** study aimed to estimate the prevalence of MetS and its components in children aged 5-9 years old by using the MetS definition for adolescents with the lowest cut-off points,and evaluate its relationship with overweight and socio-demographic ***:A total of 494 children were *** models with filtered variables in preliminary univarite analyses were built to find predictive factors of MetS and its ***:The prevalence of MetS was 8.7%in the studied *** models showed that age,overweight and low socioeconomic stratum were associated with MetS;low high-density lipoprotein cholesterol was not significantly associated with any variable;high triglycerides were positively associated with age,overweight and inversely associated with kilocalories/day;female gender was the only variable significantly associated with high fasting glucose(inverse association);and age,gender and overweight were significant factors for increased waist *** the case of high blood pressure,no variable was classified to the multivariate ***:This study showed disturbing figures regarding cardiometabolic risk in the children based on comparisons with studies in *** studies are needed to confirm the utility of the de Ferranti Mets definition in children.

关键词： fasting glucose metabolic syndrome obesity

Hydrodeoxygenation of vegetable oil in batch reactor:Experimental considerations

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Chinese Journal of Chemical Engineering 2020年第6期28卷 1670-1683页

作者： Alexis K.Noriega Alexis Tirado cecilia Méndez Gustavo Marroquín Jorge Ancheyta Instituto Politécnico Nacional Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada Unidad LegariaLegaria 694Col.Irrigación 11500Mexico Instituto Mexicano del Petróleo Eje Central Lázaro Cárdenas Norte 152San Bartolo Atepehuacan 07730Mexico

The generation of reliable experimental data in any experimental scale requires proper procedures not only for the reaction step but also for the feed preparation,separation,and characterization of products as well as calculations of conversion and product *** reactor is the most used experimental setup for carrying out exploratory studies for catalyst screening and *** work is focused on describing and discussing a step-by-step methodology for conducting experiments for catalytic hydrotreating of vegetable oils in batch *** proposed methodology considers literature and own experiences on advantages and disadvantages of different feed types,catalysts,experimental setup and procedures,effect of reaction parameters,separation and characterization of products,and calculations.

关键词： Vegetable oils Hydrotreating Batch reactor

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Long-term albendazole therapy for diffuse parenchymal neurocysticercosis in an immunocompetent patient:A case report

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Asian Pacific Journal of Tropical Medicine 2023年第2期16卷 89-91页

作者： Paulus Sugianto Abdulloh Machin Wardah Rahmatul Islamiyah Cindy cecilia Department of Neurology Faculty of Medicine-Universitas Airlangga/Dr.Soetomo General-HospitalSurabayaIndonesia

Rationale:Neurocysticercosis is a neglected tropical disease caused by the larvae of Taenia solium and may occur in immunocompetent *** report a case of diffuse parenchymal neurocysticercosis mimicking tuberculous meningitis in an immunocompetent *** concerns:A 24-year-old immunocompetent woman presented with serial focal to generalized seizure,left body weakness,left abducens palsy,chronic cough,and body weight *** came from an area where she was unlikely to have contact with Taenia ***:Diffuse parenchymal ***:Valproic acid,dexamethasone and 15 months of albendazole ***:Complete recovery without any neurological sequelae.

关键词： cysticercosis albendazole patient

Implications of turbulent shear on clay floc break-up along the Atlantic estuary(Bouregreg),Morocco

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International Journal of Sediment Research 2022年第2期37卷 248-257页

作者： Krishnamoorthy Lakshmi Ammal Priya Soufiane Haddout Joan cecilia Catubig Casila Department of Civil Engineering TKM College of Engineering Department of Physics Faculty of Science Ibn Tofail University Land and Water Resources Division IABE CEAT University of the Philippines Los Ba?os

Water depth,salinity,current,and suspended sediment concentration(SSC) were measured along with the grain size distribution of bed sediment along an estuarine longitudinal *** floc size increased with increase in the percentage of clay and silt,while decreased with increase in the percentage of sand content of bed *** turbulent shear,G,had a direct effect on floc size with its value increasing with increase in G up to a G value of 15 s,while an inverse relation existed between floc size and G at higher G(C> 15 s).Further,higher turbulence enabled sand to get resuspended and cause additional shear leading to the break-up of *** attempt was made to modify G to account for the combined effect of water turbulence(C) and shear imparted by sand(C) and the impact of the modification of G on the predictability of floc size was evaluated.A new model was developed which explains floc size in terms of sediment concentration(C),salinity gradient(S),and G for different scenarios based on the value of *** analysis was done for observed floc size(FS) and predicted floc size using four approaches:(Ⅰ) FS β C~χ;(Ⅱ) FS α C~χS;(Ⅲ) FS α C~χSG~z for G 15 s; and(Ⅳ) FS α C~χSGfor G> 15 sand G=G+G,where x,y,and z are determined by *** was observed that the predictability of the floc size improved when the turbulence was modified to account for shear imparted by sand so that the coefficient of determination was increased from 0.78 for model Ⅲ to 0.89 for model Ⅳ.Further,the settling velocity was expressed as a function of suspended sediment concentration,turbulent shear,and salinity *** predictability of settling velocity was improved(R~2 increased from 0.77 to 0.86) when the additional turbulence created by sand was incorporated in the non-dimensional empirical *** study highlights the influence of sand in causing the break-up of flocs and suggests that for turbulence shear values high enough to resuspend

关键词： Floc size Settling velocity Turbulent shear Non-cohesive sediment Bouregreg estuary Morocco

Malawian Museums Development from a Tourism and Leisure Industry Perspective

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Malawian Museums Development from a Tourism and Leisure Indu...

作者： cecilia Ndamiwe Ngwira 河北大学

学位级别：硕士

在文化遗产旅游活动中,博物馆等这些有着收集人类文明经历的机构为旅游者提供了一个发现和重现不同于他们自己的人类日常生活的事物的机会。正如理查德所暗指的,现代旅游者对于利用博物馆来测试他们的观念,行为和好奇心这种行为很反感,... 详细信息

在文化遗产旅游活动中,博物馆等这些有着收集人类文明经历的机构为旅游者提供了一个发现和重现不同于他们自己的人类日常生活的事物的机会。正如理查德所暗指的,现代旅游者对于利用博物馆来测试他们的观念,行为和好奇心这种行为很反感,这一观点可以通过类似马拉维的卡龙加博物馆和位于阿姆斯特丹的大麻馆等这样的专业化的博物馆的发展情况来验证。发达国家的越来越多的研究都表明博物馆旅游交通有所发展,然而对于马拉维来说,尽管有不同种类的博物馆分布于全国各地,但是总体来说马拉维的博物馆交通还是欠发达。这项研究致力于找出阻碍马拉维由博物馆参观地成为休闲中心的因素。其中有五个博物馆参与其中,即Chamare,Chichiri,卡龙加,曼陀罗和姆祖祖。该研究探讨了收集和博物馆展品和通信的消息是否对带领旅游者参观博物馆有拉动效应。同时本次研究是通过使用丹恩(1977)推拉理论和(克莱蒙斯和伍德拉夫,1992年)的期望失验理论完成的。本次调查使用混合研究方法和使用问卷调查、面对面的访谈、以及观察法来收集解决研究问题的数据。对其中的200人立意取样回答问卷的形式,对5位管理人员采用深度访谈的方式调查。研究结果表明,大多数马拉维人因为没有被妥善的营销而不知道博物馆的存在,所以不会去参观博物馆。另一个原因是,展出的展品大多是和博物馆本身一样古老,自己因此人们不愿意去看他们年轻时就已经看过的展品。而最后,还有一些人表示,他们不愿意交门票费,因此他们也不会去参观博物馆。本研究强烈建议文化部加速开展营销和公民教育活动,以确保马拉维人对博物馆有正确的认识。与此同时,研究建议陈列展品定期更换,以确保游客源源不断进入博物馆。

关键词：博物馆文化遗产观众拓展数字化营销

Effect of rare-earth oxides on properties of silicon nitride obtained by normal sintering and sinter-HIP

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Journal of Rare Earths 2012年第11期30卷 1177-1183页

作者： cecilia C.Guedes-Silva Flávio Machado de Souza Carvalho José Carlos Bressiani Nuclear and Energy Research Institute-IPEN/CNEN Geoscience Institute-IGC/USP

This paper presented the microstructure, mechanical properties and oxidation behavior of silicon nitride obtained by both conventional sintering and sintering followed by hot isostatic pressing （HIP）. Silicon nitride with additives such as 5 wt.% Al2O3 and 5 wt.% Ln203 （Ln= La, La concentrate, Gd or La＋Gd） were studied. The results revealed that Gd203 additions increased the formation of elongated grains of β-Si3N4, the fracture toughness and oxidation resistance. La2O3 additions led to higher densification and hardness values, while addition of La2O3 concentrate promoted the formation of materials with intermediate properties, compared to the other studied compositions. Hot isostatic pressing increased the hardness but decreased the fracture toughness of the material, mainly because it allowed residual pores to close and also reduced the average aspect ratio of β-Si3N4 grains.

关键词： rare earths silicon nitride properties normal sintering sinter-HIP

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