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Green Hydrogen: Perspectives and Challenges in Using the Natural Gas Network in Ceará/Brazil

Journal of Geoscience and Environment Protection 2024年第3期12卷 70-94页

作者： Francisco Alfredo de Castro Mona Lisa Moura de Oliveira Lutero Carmo de Lima daniel silveira serra Science and Technology Center State University of Ceará Ceará Brazil Av. Dr. Silas Munguba 1700 Fortaleza-Ceará Brazil

Climate change, mainly caused by the use of non-renewable fuels, has raised global concerns and led to the search for less polluting energy sources, making hydrogen a promising energy alternative with the potential to contribute to changes in the energy mix of various countries through the use of technologies that enable its production and use with low or zero carbon emissions. In this context, Brazil has aroused great interest from other countries in exploring its renewable resources for the production of hydrogen (green hydrogen). In this sense, the use of natural gas pipelines and the use of hydrogen in mixtures with natural gas have become the subject of studies due to their economically viable alternative for the immediate use of this energy vector. However, there are still technical and regulatory challenges regarding the integration of hydrogen into the existing natural gas pipeline network. In this context, the present study aims to address the effects of hydrogen interaction with the structure of natural gas pipeline steel and the regulatory barriers to the use of this network for the transportation of green hydrogen, particularly in the state of Ceará/Brazil. After extensive analysis of literature and regulatory documents, it was concluded that: 1) Ceará/Brazil has strong potential to meet the demand for green hydrogen through the use of solar and wind energy sources;2) there is feasibility for the adaptation or conversion of natural gas infrastructure for the transportation of green hydrogen;3) discussions regarding the regulatory competence of green hydrogen transportation and distribution through the natural gas network in Brazil are still incipient;4) the current regulation of the natural gas industry can serve as a subsidy for the regulation of green hydrogen and natural gas transportation.

关键词： Decarbonization Natural Gas Green Hydrogen Pipelines

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Atmospheric Pollutants in a Commercial Region of Fortaleza, Ceará, Brazil: Integration of Health, Environment and Economy in Urban Planning to Improve Air Quality

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Journal of Geoscience and Environment Protection 2024年第5期12卷 92-112页

作者： Mônica Giovana Alves Cardoso Ratts Brenna Kessy Silva Lima Gilvan Ribeiro dos Santos Fladimir de Lima Gondim Rinaldo Santos Araújo Mona Lisa Moura de Oliveira Francisco Sales Ávila Cavalcante daniel silveira serra Science and Technology Center State University of Cear&#225 Cear&#225 Brazil Department of Chemistry and Environment Federal Institute of Cear&#225 Cear&#225 Brazil Center of Technological Sciences State University of Cear&#225 Cear&#225 Brazil

The accelerated growth of the vehicular fleet, the modernization of large urban centers, and the few adjustments to the road network in Fortaleza have intensified the problems of traffic and emissions of atmospheric pollutants, highlighting the necessity for strategic urban planning initiatives to address the escalating issues of traffic and pollution. With the objective of analyzing the indices of concentrations of atmospheric pollutants and estimating how these levels can affect human health, this work consists of a study of the analysis of air quality in the intense trade region of Fortaleza. For this, the analysis zone was divided into three perimeters (Major - Medium - Minor), where each perimeter was analyzed at 7 am, 12 noon and 5 pm. Concentrations of the type of O3, particulate matter (PM2.5 and PM10), CO2 and HCHO were collected. Our results demonstrate that most of the analyses are within the limits of current legislation;however, at certain times and perimeters, the analyses of CO2 and HCHO exceeded the established limits. In view of the above, we conclude that public policies to control air quality are necessary to reduce the damage to human health and the environment caused by pollutants.

关键词： Air Quality Urban Planning Particulate Material Health Impacts

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Floristic composition and edaphic relationships in ferruginous campo rupestre reference ecosystems

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Journal of Mountain Science 2024年第3期21卷 719-733页

作者： G.Wilson FERNANDES Letícia RAMOS Dario C.PAIVA Jéssica CUNHA-BLUM Vanessa Matos GOMES daniel NEGREIROS Ecologia Evolutiva&Biodiversidade Departamento de GenéticaEcologia e Evolução/ICBUniversidade Federal de Minas Gerais31270-901Belo HorizonteMGBrazil Knowledge Center for Biodiversity 31270-901Belo HorizonteMGBrazil Department of Biological Sciences Institute of EnvironmentFlorida International UniversityMiamiFL 33199USA Programa de Pós Graduação em Biodiversidade e Uso dos Recursos Naturais Universidade Estadual de Montes ClarosMontes ClarosMGBrazil Laboratório de Estudo das Relações Solo-Planta Departamento de SolosUniversidade Federal Rural do Rio de JaneiroSeropédicaRGBrazil

Land use change and occupation have led to modifications in the environment causing loss of biodiversity and ecosystem services throughout the *** environments with high economic relevance,such as the ferruginous campo rupestre(rupestrian grassland known as Canga in Brazil),are even more susceptible to severe impacts due to their extreme habitat conditions and low *** determination of reference ecosystems based on the intrinsic characteristics of the ecosystem is essential for conservation as well as to the implementation of ecological *** proposed the reference ecosystem of the three main types of habitats of the ferruginous campo rupestre based on their floristic *** described the floristic composition of each habitat and evaluated the physicochemical properties of the soils and the relationship between plants and *** three habitats showed high diversity of plant species and many endemic species,such as Chamaecrista choriophylla,Cuphea pseudovaccinium,Lychnophora pinaster,and Vellozia *** distribution of vegetation was strongly related with the edaphic characteristics,with a set of species more adapted to high concentration of base saturation,fine sand,organic carbon,and iron,while another set of species succeeded in more acidic soils with higher S and silt *** provide support for the contention that the ferruginous campo rupestre is a mosaic of different habitats shaped by intrinsic local *** to recognize the floristic composition of each particular habitat can lead to inappropriate restoration,increased habitat homogenization and increased loss of biodiversity and ecosystem *** study also advances the knowledge base for building the reference ecosystem for the different types of ferruginous campo rupestre habitats,as well as a key database for highlighting those species contribute most to community assembly in this diverse and threatened tropical mountain ecosystem.

关键词： Canga Ecological restoration Extreme ecosystem Non-forest ecosystems Rupestrian grassland Taxon environment relationships

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Low-power SiPM readout BETA ASIC for space applications

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Nuclear Science and Techniques 2024年第3期35卷 153-169页

作者： Anand Sanmukh Sergio Gómez Albert Comerma Joan Mauricio Rafel Manera Andreu Sanuy daniel Guberman Roger Catala Albert Espinya Marina Orta Oscar de la Torre David Gascon Departament de Física Quàntica i Astrofísica(FQA) Institut de Ciències del Cosmos(ICCUB)Universitat de Barcelona(UB)08028 BarcelonaSpain Institut d’Estudis Espacials de Catalunya(IEEC) 08034 BarcelonaSpain Electronics Department Serra Hunter fellow at Polytechnic University of Catalonia(UPC)08019 BarcelonaSpain

The BETA application-specific integrated circuit(ASIC)is a fully programmable chip designed to amplify,shape and digitize the signal of up to 64 Silicon photomultiplier(SiPM)channels,with a power consumption of approximately~1 mW/*** to its dual-path gain,the BETA chip is capable of resolving single photoelectrons(phes)with a signal-to-noise ratio(SNR)>5 while simultaneously achieving a dynamic range of~4000 ***,BETA can provide a cost-effective solution for the readout of SiPMs in space missions and other applications with a maximum rate below 10 *** this study,we describe the key characteristics of the BETA ASIC and present an evaluation of the performance of its 16-channel version,which is implemented using 130 nm *** ASIC also contains two discriminators that can provide trigger signals with a time jitter down to 400 ps FWHM for 10 *** linearity error of the charge gain measurement was less than 2%for a dynamic range as large as 15 bits.

关键词： Radiation detectors Silicon photomultipliers Photon sensors Front-end electronics Mixed-mode ASICs Space technology

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Hydrogels for neuroprotection and functional rewiring: a new era for brain engineering

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Neural Regeneration Research 2020年第5期15卷 783-789页

作者： Rocío Fernández-serra Rebeca Gallego Paloma Lozano daniel González-Nieto Center for Biomedical Technology Universidad Politécnica de Madrid. MadridSpain Departamento de Tecnología Fotónica y Bioingeniería ETSI TelecomunicacionesUniversidad Politécnica de MadridMadridSpain Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) MadridSpain

The neurological devastation of neurodegenerative and cerebrovascular diseases reinforces our perseverance to find advanced treatments to deal with these fatal ***-performance preclinical results have failed at clinical level,as it has been the case for a wide variety of neuroprotective agents and cell-based therapies employed to treat high prevalent brain pathologies such as stroke,Alzheimer’s and Parkinson’s *** unquestionable reality is the current absence of effective therapies to neuroprotect the brain,to arrest neurodegeneration and rewire the impaired brain *** of the problem might arise from the lack of adequate in vitro and in vivo models and that most of the underlying pathophysiological mechanisms are not yet *** contributing factor is the lack of efficient systems to sustain drug release at therapeutic concentrations and enhance the survival and function of grafted cells in transplantation *** medical applications the use of biomaterials of different compositions and formats has experienced a boom in the last *** the greater complexity of central nervous system has probably conditioned their extensive use with respect to other organs,the number of biomaterials-based applications to treat the injured brain or in the process of being damaged has grown ***-based biomaterials have constituted a turning point in the treatment of cerebral disorders using a new form of advanced *** show mechanical properties in the range of cerebral tissue resulting very suitable for local implantation of drugs and *** is also possible to fabricate three-dimensional hydrogel constructs with adaptable mesh size to facilitate axonal guidance and *** this article,we review the current trends in this area highlighting the positive impact of hydrogel-based biomaterials over the exhaustive control of drug delivery,cell engraftment and axonal reinnervation in brain p

关键词： advanced therapies Alzheimer’s disease biomaterials brain hydrogels neurological diseases Parkinson’s disease polymers stroke

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Electromagnetic Characterization of Recyclable Polymer Nanofibers Based on PSU/Carbonyl Iron

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Journal of Renewable Materials 2019年第3期7卷 279-287页

作者： daniel Consoli silveira Tiago Teixeira da Silva Braga daniel Molina Gil Newton Adriano dos Santos Gomes Lilia Müller Guerrini Edson Cocchieri Botelho Department of Materials and Technology Sao Paulo State University(UNESP)School of EngineeringGuaratinguetá/SP-Brazil Electronic Warfare Laboratory Technological Institute of Aeronautics(ITA)Sao Josédos Campos/SP-Brazil Institute of Science and Technology Federal University of Sao Paulo(UNIFESP)Sao Josédos Campos/SP-Brazil

This study investigated and defined the optimal processing parameters for the electrospinning of polysulfone polymer solutions with N,*** of parameters such as solute concentration,electrical voltage,and working distance were correlated with the quality of the obtained nanofibers using morphological characterization via scanning electron microscopy(SEM).Carbonyl iron additive was dispersed in the polymer solutions,using ultrasonic tip,and the material processed via electrospinning with aforementioned parameters *** with the property of interaction with electromagnetic waves were *** dispersion of different concentrations of the additive and electromagnetic characterizations in the X-band of microwaves(8.2 and 12.4 GHz),using vector network analyzer(VNA)and rectangular waveguide,allowed the identification of the materials electromagnetic *** parameters allowed the calculation of reflected and transmitted energy by the material.

关键词： Carbonyl iron electromagnetic characterization electrospinning nanofibers polysulfone

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Whole-genome sequences shed light on the demographic history and contemporary genetic erosion of free-ranging jaguar(Panthera onca) populations

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Journal of Genetics and Genomics 2022年第1期49卷 77-80页

作者： Gustavo P.Lorenzana Henrique V.Figueirò Jeremy Johnson Elinor Karlsson Ronaldo G.Morato Dênis A.Sana Laury Cullen Joares A.May Jr. Edsel A.Moraes Jr. daniel L.Z.Kantek Leandro silveira William J.Murphy Oliver A.Ryder Eduardo Eizirik Pontiﬁcal Catholic University of Rio Grande do Sul PUCRS.School of Health and Life SciencesPorto AlegreRS 90619Brazil Christopher B.Kaelin Gregory S.Barsh HudsonAlpha Institute for BiotechnologyHuntsvilleAL 35806USA Vertebrate Genome Biology Broad InstituteCambridgeMA 02142USA CENAP/ICMBio AtibaiaSP 12952Brazil PPG Biologia Animal Instituto de Bioci^enciasUFRGSPorto AlegreRS 90650Brazil Instituto de Pesquisas Ecol ogicas Teodoro SampaioSP 19280Brazil UniSul TubarãoSC 88704Brazil Instituto Prò-CarnivorosAtibaiaSP 12945Brazil Instituto Biotr opicos DiamantinaMG39100Brazil Estacão Ecologica de Taiamã ICMBioCaceresMT 78200Brazil Instituto Onca-pintada-Jaguar Conservation Fund MineirosGO 75830Brazil Texas A&M University College StationTX 77843USA San Diego Zoo Institute for Conservation Research San DiegoCA 92027USA Pontiﬁcal Catholic University of Rio Grande do Sul PUCRS.School of Health and Life SciencesPorto AlegreRS 90619Brazil Instituto Pr o-Carni¬vorosAtibaiaSP 12945Brazil Centro Regional del Bajio INECOLP atzcuaroMIC61600Mexico Smithsonian Conservation Biology Institute WashingtonDC20008USA

Whole-genome sequences provide massive amounts of data that can illuminate many aspects of a species’biology and evolutionary history,as well as valuable information for conservation *** is particularly important for large carnivores,whose large area requirements and typical low densities make them prone to undergo rapid genetic erosion(*** of runs of homozygosity,Diez del Molino et al.,2018;Leroy et al.,2018)in the face of habitat loss and human *** such species is the jaguar(Pan-thera onca),the largest extant felid in the Americas,whose range has already declined by>50%and some of whose remaining popu-lations have been severely impacted by human-induced habitat frag-mentation(De La Torre et al.,2018).

关键词： Whole habitat erosion

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Relaxant effect and possible mechanism of 17-nor-subincanadine E in rabbit corpora cavernosa

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Asian Journal of Andrology 2011年第5期13卷 747-753页

作者： Otacilio D Benvindo Nilberto RF Nascimento Claudia F Santos Manasses C Fonteles Edilberto R silveira daniel E Uchoa Adriana R Campos Karina MA Cunha Flavia A Santos Vietla S Rao Department of Physiology and Pharmacology Faculty of Medicine Federal University of Ceara PO Box 3157 60430-270 Fortaleza CE Brazil Superior Institute of Biomedicine Caara State University Fortaleza CE Brazil Detriment of Organic and Inorganic Chemistry Federal University of Ceara 60455-760 Fortaleza CE Brazil

Compounds with dual action on cyclic adenosine monophosphate （cAMP） and cyclic guanosine monophosphate （cGMP） may be a treatment option for erectile dysfunction, as they not only promote penile erection but also prevent the upregulation of phosphodiesterase-5. In this study, we examined the possible relaxant effect and mechanism of 17-nor-subincanadine E （SEC, 0.2-200 pmol I^-1）, a plant-derived alkaloid, in rabbit corpus cavernosum （RbCC） strips that had been precontracted by exposure to phenylephrine （10 pmol I^- 1） or a high concentration of K＋（60 mmol I^- 1） in vitro. In addition to SEC＇s effect on cAMP and cGMP levels, electrical field stimulation （EFS） in phenylephrine-precontracted RbCC and calcium chloride （1-100 mmol I^-1） evoked responses in depolarized RbCC were analysed. SEC relaxed the phenylephrine-precontracted RbCCs in a concentration-dependent manner. Atropine, guanethidine and N-co-nitro-L-arginine methyl ester （L-NAME） did not have any effect on the relaxation of RBCCs. When 1H-1,2,4oxadiazole[4,3-a] quinoxalin-1-one （ODQ） was added, it effectively blocked the relaxant response of SEC. Although SEC enhanced the maximal relaxation produced by sodium nitroprusside （SNP） and forskolin in phenylephrine-precontracted cavernosal smooth muscle, it caused a decrease in the maximal contractile response induced by calcium chloride in depolarized RbCCs. The relaxant effect of SEC was paralleled by an increase in the tissue levels of the Cyclic nucleotides cAMP and cGMP. We conclude that SEC promotes the relaxation of RbCC, possibly favouring cAMP and cGMP accumulation and calcium blockade. This novel mechanism could be useful for patients who do not benefit from phosphodiesterase inhibitors and for those with endothelial and nitrergic dysfunction, such as patients with diabetes, hypertension and dyslipidaemias.

关键词： 17-nor-subincanadine E cyclic nucleotides electrical field stimulation nitric oxide rabbit corpus cavernosum smoothmuscle relaxation

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Does an association exist between chronic pancreatitis and liver cirrhosis in alcoholic subjects?

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World Journal of Gastroenterology 2008年第40期14卷 6171-6179页

作者： Luis Aparisi Luis Sabater Juan Del-Olmo Juan Sastre Miguel-Angel serra Ricardo Campello daniel Bautista Abdalla Wassel José-Manuel Rodrigo Liver Unit Universitary Clinic Hospital Department of Surgery Universitary Clinic Hospital Department of Physiology University of Valencia Unit of Psiquiatry Servicio Valenciano de SaludValencia 46010Spain Department of Preventive Medicine Hospital Dr.Peset

AIM: To study the possible association between chronic pancreatitis (CP) and liver cirrhosis (LC) of alcoholic etiology,after excluding any other ***: One hundred and forty consecutive alcoholic patients were subdivided into three groups: CP (n = 53),LC (n = 57),and asymptomatic alcoholic (n = 30).Clinical,biochemical and morphological characteristics,Child-Pugh index,indocyanine green test,and fecal pancreatic elastase-1 test were ***: In patients with cirrhosis,major clinical manifestations of CP such as pancreatic pain and steatorrhea,as well as imaging alterations of CP such as calcifications,duct dilation and pseudocysts were absent; insulin-dependent diabetes was present in 5.3% of cases,and elastase-1 test was altered in only 7%,and severely altered in *** patients with CP,clinical characteristics of cirrhosis such as ascites,encephalopathy and gastrointestinal hemorrhage were present in one case,Child-Pugh grade > A in 5.7%,and altered indocyanine green test in 1.9% *** asymptomatic alcoholism,there was only a non-coincident alteration of elastase-1 test and indocyanine test in 14.8% and 10%,respectively,but other characteristics of cirrhosis or CP were *** inverse correlation (r = -0.746) between elastase-1 test and indocyanine test was found in alcoholic ***: There is a scarce coincidence in clinical and morphological alterations among patients with CP or LC of alcoholic etiology,but an inverse correlation between pancreatic and liver function *** findings support that these alcoholic diseases evolve in a different manner and have different etiopathogenesis.

关键词：慢性胰腺炎酒精肝硬化酒精中毒胰腺功能肝功能

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The CD133/1<sup>+</sup>cell subset from human subcutaneous adult fat retains hemogenic potential

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Stem Cell Discovery 2012年第2期2卷 36-40页

作者： Camila Santos de Moraes Paulo Roberto Albuquerque Leal daniel Fabiano Ferreira Fernando serra Eliana Abdelhay Claudia Sondermann Freitas Bone Marrow Transplantation Unit National Cancer Institute of Rio de Janeiro Rio de Janeiro Brazil Experimental Medicine Program Research Coordination National Cancer Institute of Rio de Janeiro Rio de Janeiro Brazil Pedro Ernesto Hospital Rio de Janeiro State University Rio de Janeiro Brazil Plastic Surgery Cancer Hospital I National Cancer Institute of Rio de Janeiro Rio de Janeiro Brazil

Research has shown that cells from adult fat tissue can effect long-term blood reconstitution. Fat-derived multipotentiality was ascribed to CD34+ perivascular populations from its prominent microvasculature, that represent mostly non-hemogenic, mesenchymal cells, although this tissue contains a CD34+45+ subset committed to a hemogenic fate. Here, in order to analyze cell subsets presenting hemogenic capabilities within fat, CD133/1+ and pericytes, the latter defined by CD140b (PDGFRb, Platelet-Derived Growth Factor Receptor Beta) expression, were immunomagnetically selected from stromal-vascular fractions (SVF). In Vitro Colony Forming Unit (CFU) assays were negative for CD140b+ pericytes and positive for CD133/1+ cells when a prolonged CFU assay was performed, revealing fat as another store of primitive progenitors that retain hemogenic potential.

关键词： Adipose Tissue-Derived Stem Cells CD133 Hematogenesis Hemangioblast Pericyte

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