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Hormonal modulation of reproduction and fertility signaling in polistine wasps

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Current Zoology 2021年第5期67卷 519-530页

作者： Cintia Akemi OI rafael carvalho DA SILVA Ian STEVENS Helena Mendes FERREIRA Fabio Santos NASCIMENTO Tom WENSELEERS Laboratory of Socioecology and Social Evolution KU LeuvenLeuven 3000Belgium Faculdade de Filosofia Ciencias e Letras de Ribeirao PretoDepartamento de BiologiaUniversidade de Sao Paulo—USPRibeirao PretoSP 14040-901Brazil

In social insects,it has been suggested that reproduction and the production of particular fertilitylinked cuticular hydrocarbons(CHC)may be under shared juvenile hormone(JH)control,and this could have been key in predisposing such cues to later evolve into full-fledged queen pheromone ***,to date,only few studies have experimentally tested this“hormonal pleiotropy”***,we formally test this hypothesis using data from four species of Polistine wasps,Polistes dominula,Polistes satan,Mischocyttarus metathoracicus,and Mischocyttarus cassununga,and experimental treatments with JH using the JH analogue methoprene and the anti-JH *** line with reproduction being under JH control,our results show that across these four species,precocene significantly decreased ovary development when compared with both the acetone solvent-only control and the methoprene *** with the hormonal pleiotropy hypothesis,these effects on reproduction were further matched by subtle shifts in the CHC profiles,with univariate analyses showing that in *** and *** the abundance of particular linear alkanes and mono-methylated alkanes were affected by ovary development and our hormonal *** results indicate that in primitively eusocial wasps,and particularly in Polistes,reproduction and the production of some CHC cues are under joint JH *** suggest that pleiotropic links between reproduction and the production of such hydrocarbon cues have been key enablers for the origin of true fertility and queen signals in more derived,advanced eusocial insects.

关键词： Polistinae wasps fertility cues queen pheromones cuticular hydrocarbons juvenile hormone

Study of a Portable Experimental Set for the Monitoring of Ionizing Radiation in the Tropical Region of Brazil

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Journal of Environmental Science and Engineering(A) 2017年第3期6卷 144-148页

作者： Inacio Malmonge Martin Marcelo Pego Gomes Rodrigo Rezende Fernandes carvalho and rafael Gomes Physics Department Technological Institute of Aeronautics-ITA Sao Jose dos Campos SP 12228-900 Brazil

The Geiger is a proportional counter that detects the ambient ionizing radiation using a sensor tube and an associated electronics that allows feeding the desired voltage to the tube and acquiring the data in a certain time interval. With a sensor tube of Chinese and Russian origin and associated electronics based on the Arduino system, an experimental set of very low cost and easy handling for the monitoring of the local environmental ionizing radiation was set up. The main objective of this work is to disseminate this very low cost technique for the environmental study in secondary schools in Brazil.

关键词： Ionizing radiation environmental study gamma radiation measurements.

Risk Analysis： A Methodology Applicable to the Building Inspection

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Journal of Civil Engineering and Architecture 2016年第9期10卷 1052-1058页

作者： Mauricio Noya Ana Lucia Torres Seroa da Motta Mariangela Moura rafael carvalho de Souza Bruno Barzellay Programa de Pos-graduacao em Engenharia Civil Universidade Federal Fluminense Rio de Janeiro 22211-200 Brazil Departamento de Engenharia Civil da Universidade Federal do Rio de Janeiro-Campus Macae Rio de Janeiro 22211-200 Brasil

The lack of care related to maintenance management is directly linked to the absence of plans for maintenance of buildings. Because of that, there is a big incidence of building accidents caused by the negligence of managers and the lack of investment. The research has shown that, although building inspection is a consolidated building maintenance tool, managers do not prepare their building maintenance plan, nor use building inspection as a tool, leading the buildings to the premature obsolescence. The research calls attention to the building inspection technique that can be used to evaluate building maintenance and conservation. It is also a tool for analysis and investment planning based on actions to solve failures and anomalies that might come out during the building inspection. Those failures and anomalies are classified according to their degree of risk, determining the technical priorities of the investment adjustment in the maintenance plan. The paper presents a risk analysis methodology which classifies inspect elements in a building, determining the priority order of services to be executed on a scale from minimum risk （1） to imminent risk （5）. The method shows a tool for building inspection, and it serves as a guideline for building maintenance interventions.

关键词： Civil engineering risk analysis building inspection building maintenance.

Morphology of the Digestive Apparatus in <i>Oligoryzomys nigripes</i>(Rodentia, Sigmodontinae)

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Open Journal of Animal Sciences 2015年第2期5卷 132-141页

作者： Jéssica Borghesi Lara C. Mario rafael C. carvalho Marcio N. Rodrigues Phelipe O. Favaron Maria A. Miglino Department of Surgery School of Veterinary Medicine and Animal Science University of Sao Paulo Sao Paulo Brazil

Although the Genus Oryzomys is widely distributed in the Americas, there are very few published data on the morphology of this rodent group. Notably, in relation to the digestive apparatus, the data are sparse and fragmented. In addition, because rodents are important animal models, this information may be useful in recent and promising areas for applied studies, such as clinical, therapeutic, and surgical models. Here, we describe the morphological characteristics of the digestive system in Oligoryzomys nigripes using gross morphology and light and scanning electron microscopy. In total, five specimens were used. After an incision from the oral to pelvic cavities, all organs of the digestive system were exposed and dissected. Next, all structures from the oral cavity, pharynx, esophagus, stomach, intestines, liver, and pancreas were processed and evaluated by microscopy. The results revealed that the digestive system of O. nigripes consisted of an oral cavity, in which the tongue, minor and major salivary glands, and dental arch were predominant. Behind the oral cavity, the pharynx, esophagus, stomach, intestines, liver, and pancreas were identified and presented typical morphological characteristics of rodents. In conclusion, our results suggest that the morphology of the O. nigripes digestive system differs from the previously described data for other rodent species, mainly due to the absence of the molar teeth and gallbladder in this species.

关键词： Cricetidae Microscopy Macroscopic Rodents

理性的辉煌与局限——巴西利亚规划60年回溯

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国际城市规划 2023年第1期38卷 133-143页

作者：赵守谅卢诗霞陈婷婷林善施华中科技大学建筑与城市规划学院武汉大学城市设计学院巴西圣保罗大学

2020年是巴西利亚建成60周年。本文采取辩证视角,聚焦“理性”这一主题,对巴西利亚规划的主要成就与问题进行回溯。笔者指出巴西利亚规划主要在三个方面体现了理性的辉煌,即旨在首都职能分离与地区发展平衡的迁都决策,极具特色、理念超... 详细信息

2020年是巴西利亚建成60周年。本文采取辩证视角,聚焦“理性”这一主题,对巴西利亚规划的主要成就与问题进行回溯。笔者指出巴西利亚规划主要在三个方面体现了理性的辉煌,即旨在首都职能分离与地区发展平衡的迁都决策,极具特色、理念超前的城市设计构想,以及超级社区精细的标准化设计;同时,也揭示了巴西利亚存在着极不方便的人居生活、城市用地蔓延与低效利用、社会隔离与空间分异加剧这三大意料之外的尴尬。针对巴西利亚规划从“现代主义的一次伟大实践”到“现代主义失败的缩影”的转变,笔者从理性视角对巴西利亚规划进行了方法论层面的反思。

关键词：理性巴西利亚城市规划现代主义方法论

Thermal and Mechanical Properties of Thermoplastic Starch and Poly(Vinyl Alcohol-Co-Ethylene)Blends

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Journal of Renewable Materials 2019年第3期7卷 245-252页

作者： Ana Clara Lancarovici Alves rafael Grande Antonio José Felix carvalho Department of Materials Engineering Sao Carlos School of EngineeringUniversity of Sao PauloAv.Joao Dagnone110013563-120Sao Carlos-SP-Brazil

The interest in thermoplastic starch(TPS)as a substitute material to replace conventional thermoplastics continues especially due its biodegradability,availability,low cost and because it is obtained from renewable ***,its poor mechanical properties and its high sensitivity to humidity have limited its use in several ***,the copolymer poly(ethylene-co-vinyl alcohol)(EVOH),with two different ethylene contents,27 and 44 mol%were blended with TPS by extrusion in order to overcome these *** obtained blends were characterized by thermogravimetric analysis(TGA),differential scanning calorimetry(DSC),mechanical tensile testing,Scanning Electron Microscopy(SEM)and moisture absorption *** addition of EVOH copolymer did not significantly changed the thermal stability of TPS,however it increased the tensile strength in 65%when compared to *** morphology of the blends did not showed two distinct phases,an indication of miscibility or partial miscibility of the components.A decrease of moisture absorption was obtained by the addition of EVOH and is more pronounced for the EVOH with 44% of ethylene.

关键词： Thermoplastic starch EVOH polymer blends thermal properties of polymers mechanical properties of polymers

Decontamination of mobile phones and electronic devices for health care professionals using a chlorhexidine/carbomer 940■gel

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Frontiers of Chemical Science and Engineering 2019年第1期13卷 192-198页

作者： rafael Muniz de Oliveira Nereida Mello da Rosa Gioppo Jancineide Oliveirade carvalho Francilio carvalho Oliveira Thomas Jay Webster Fernanda Roberta Marciano Anderson Oliveira Lobo University Hospital of the West of Parana State University of West of Parana Cascavel PR Brazil University Center for Health. Humanities and Technology of Piaui (UNINOVAFAPI). Piaui Brazil Science and Technology Institute Brasil University Itaquera SP Brazil Nanomedicine Laboratory Department of Chemical Engineering Northeastern University MA 02115 USA Materials Science and Engineering graduation program Technology Center Federal University of Piaui. PI Brazil

Though they reduce microorganism growth, current hospital disinfectants also damage many of today’s modern electronic devices such as tablets and smartphones. Herein, the efficacy of a new chlorhexidine digluconate gel (CDG) was tested as a disinfectant for mobile and electronic devices in a clinical environment. Specifically, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa and methicillin resistant Staphylococcus aureus were used to infect the screen of eight smartphones. The CDG was prepared at concentrations of 2%, 4% and 6%, and tested on paper disks infected with these bacteria before being tested on the smartphones. The devices were disinfected with the CDG gel (4%) at two times: immediately and after 5 min of the bacterial contamination. In all cases, the CDG gel eliminated 100% of gram-positive and gram-negative microorganisms compared to the control (without any agent). In addition, the gel did not damage the smartphones. Therefore, our study suggests that the CDG gel may be applied to disinfect a wide range of electronic devices for health care professionals in the hospital environment.

关键词： smartphones disinfection clinical environment chlorhexidine bacteria

Microfibrillated Cellulose from Sugarcane Bagasse as a Biorefinery Product for Ethanol Production

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Journal of Renewable Materials 2018年第2期6卷 195-202页

作者： rafael Grande Eliane Trovatti Maria Tereza B.Pimenta Antonio J.F.carvalho University of São Paulo Av.João Dagnone 1100CEP 13563-120São CarlosSão PauloBrazil University of Araraquara(UNIARA) R.Carlos Gomes1217CEP 14801-320AraraquaraSão PauloBrazil Suzano Papel e Celulose SA Av.Lirio Correa146506460-040LimeiraSão PauloBrazil

Research involving the preparation of microfibrillated cellulose(MFC)from sugarcane bagasse is a relevant topic to the production of new nanomaterials and more accessible cellulose substrates for the production of second generation *** the transformation of cellulose into glucose,the precursor of second generation ethanol,this nanosized cellulosic substrate represents a more appropriate material for the chemical hydrolysis *** high aspect ratio of MFC improves hydrolysis,requiring mild conditions and decreasing the generation of ***,MFC was prepared from sugarcane bagasse by ultrasound *** material was oxidized with 2,2,6,6-tetramethylpiperidine-N-oxyl(TEMPO)to produce negatively charged high defibrillated *** MFC was characterized by Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),scanning electron microscopy(SEM)and viscosity measurements.

关键词： Cellulose nanofibrils substrate second generation ethanol

Current role and future perspectives of artificial intelligence in echocardiography

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World Journal of Cardiology 2023年第6期15卷 284-292页

作者： rafael Vidal-Perez Julia Grapsa Alberto Bouzas-Mosquera Ricardo Fontes-carvalho Jose Manuel Vazquez-Rodriguez Servicio de Cardiología Unidad de Imagen y Función CardíacaComplexo Hospitalario Universitario A Coruña Centro de Investigación Biomédica en Red-Instituto de Salud Carlos ⅢA Coruña 15006Spain Department of Cardiology Guys and St Thomas NHS TrustLondon SE17EHUnited Kingdom Cardiology Department Centro Hospitalar de Vila Nova de Gaia/EspinhoVilanova de Gaia 4434-502Portugal Cardiovascular R&D Centre-UnIC@RISE Department of Surgery and PhysiologyFaculty of Medicine of the University of PortoPorto 4200-319Portugal Servicio de Cardiología Complexo Hospitalario Universitario A CoruñaA Coruña 15006Spain

Echocardiography is an essential tool in diagnostic cardiology and is fundamental to clinical *** intelligence(AI)can help health care providers serving as a valuable diagnostic tool for physicians in the field of echocardiography specially on the automation of measurements and interpretation of *** addition,it can help expand the capabilities of research and discover alternative pathways in medical management specially on *** this review article,we describe the current role and future perspectives of AI in echocardiography.

关键词： Echocardiography Artificial intelligence Machine learning Deep learning Prognosis