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Search Results: 1 - 10 of 180182 matches for " Ivan de Picoli "
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Prevalence of rhinitis symptoms among textile industry workers exposed to cotton dust
Dantas, Ivan de Picoli;Valera, Fabiana Cardoso Pereira;Zappelini, Carlos Eduardo Monteiro;Anselmo-Lim, Wilma Terezinha;
International Archives of Otorhinolaryngology , 2013, DOI: 10.7162/S1809-97772013000100005
Abstract: introduction: the respiratory tract is one of the main points of entry of foreign substances into the body. because of its location, the respiratory tract is heavily exposed to harmful agents, such as gases, vapors, or aerosols. aim: our objective was to evaluate the symptoms of occupational rhinitis in workers exposed to cotton dust. method: the prospective study population consisted of workers from the "nova esperan?a" cooperative of nova odessa (sao paulo), who were studied between september and december 2008. data were collected through an individually and privately answered questionnaire designed by the author considering the clinical criteria for rhinitis. results: using the questionnaire, we evaluated a total of 124 workers. among these patients, 63.7% complained of nasal obstruction, 57.2% of nasal itching, 46.7% of rhinorrhea, and 66.1% of sneezing. of the patients considered to have very serious symptoms, 9% had nasal obstruction; 9%, itching; 4%, rhinorrhea; and 6.4%, sneezing. discussion: aerosol agents in the environment can clearly aggravate and even initiate rhinitis. from the standpoint of pathogenesis, the mechanisms of classical allergic airway inflammation involving mast cells, ige, histamine, eosinophils, and lymphocytes may be responsible for the development of rhinitis after exposure to high molecular weight allergens such as proteins derived from animals and plants. this study showed a strong relationship between the occupational exposures associated with work in the cotton textile industry and the symptoms of rhinitis. conclusion: analysis of the data clearly showed the occurrence of rhinitis symptoms in these patients, demonstrating that the prevention and treatment of this condition in the workplace is extremely important.
Prevalence of rhinitis symptoms among textile industry workers exposed to cotton dust
Dantas, Ivan de Picoli,Valera, Fabiana Cardoso Pereira,Zappelini, Carlos Eduardo Monteiro,Anselmo-Lima, Wilma Terezinha
International Archives of Otorhinolaryngology , 2013,
Abstract: Introduction: The respiratory tract is one of the main points of entry of foreign substances into the body. Because of its location, the respiratory tract is heavily exposed to harmful agents, such as gases, vapors, or aerosols. Aim: Our objective was to evaluate the symptoms of occupational rhinitis in workers exposed to cotton dust. Method: The prospective study population consisted of workers from the "Nova Esperan a" Cooperative of Nova Odessa (Sao Paulo), who were studied between September and December 2008. Data were collected through an individually and privately answered questionnaire designed by the author considering the clinical criteria for rhinitis. Results: Using the questionnaire, we evaluated a total of 124 workers. Among these patients, 63.7% complained of nasal obstruction, 57.2% of nasal itching, 46.7% of rhinorrhea, and 66.1% of sneezing. Of the patients considered to have very serious symptoms, 9% had nasal obstruction; 9%, itching; 4%, rhinorrhea; and 6.4%, sneezing. Discussion: Aerosol agents in the environment can clearly aggravate and even initiate rhinitis. From the standpoint of pathogenesis, the mechanisms of classical allergic airway inflammation involving mast cells, IgE, histamine, eosinophils, and lymphocytes may be responsible for the development of rhinitis after exposure to high molecular weight allergens such as proteins derived from animals and plants. This study showed a strong relationship between the occupational exposures associated with work in the cotton textile industry and the symptoms of rhinitis. Conclusion: Analysis of the data clearly showed the occurrence of rhinitis symptoms in these patients, demonstrating that the prevention and treatment of this condition in the workplace is extremely important.
Chemical characterization and antibacterial action of brown propolis extract from Southern Brazil Tony Picoli
Tony Picoli
Revista Brasileira de Medicina Veterinária , 2016, DOI: -
Abstract: The aim of this study was to characterize chemically a sample of brown propolis and determine the time of action needed for eliminating microorganisms causing bovine mastitis. It was prepared hydroalcoholic extract of brown propolis (25 mg/mL) and this was evaluated for content of total phenolic compounds, total flavonoids, qualitative and quantitative analysis of phenolic compounds by liquid chromatography coupled to mass spectrometry and antibacterial activity against Escherichia coli, Staphylococcus spp, Streptococcus spp. It was found 34.39% and 13.46% of flavonoids and phenolic compounds, respectively, among which stand out ferulic acid (0.09 mg/g), caffeic acid (0.17 mg/g) and p-coumaric acid (3.39 mg/g).In the first 15 minutes incubation, all counts differed from the initial counts (p<0.01). With 15 minutes of exposure to the extract, Escherichia coli was inhibited by 38.72% and differed from the other bacterial genus (p<0.01, n=6). Staphylococcus spp. has had inhibition of 46.03% and Streptotococcus spp. of 50.8%. After 2 hours incubation, the genus Streptococcus was totally eliminated, Staphylococcus spp. after 3 hours and E. coli after 4 hours. Clearly, E. coli was more resistant bacteria than S. aureus. The other species of Staphylococcus and Streptococcus did not show large differences between the counts. We concluded that the composition of the brown propolis sample from Southern Brazil showed large levels of phenolic acids with proven antibacterial action, what explains the bactericidal activity found.
Associa??o de fases meióticas e estádios dos micrósporos com características morfológicas de bot?es florais de piment?o
Picoli, Edgard Augusto de Toledo;Carvalho, Carlos Roberto de;Fári, Miklos;Otoni, Wagner Campos;
Ciência e Agrotecnologia , 2003, DOI: 10.1590/S1413-70542003000300029
Abstract: in the present study, morphological characters adopted for floral bud selection used for androgenesis induction were associated with pepper (capsicum annuum l. cv. azeth) meiotic phases and microspore stages. floral buds were harvested from greenhouse-grown plants and separated into six classes according to size relationships between calyx and corolla, and anthocyanin pigmentation in anthers. after sorting by size, buds were fixed using a methanol: acetic acid (3:1) solution at -20oc. cytogenetic preparations were mounted using an adaptation of an air-drying technique and staining through a phosphate buffer giemsa solution. bud observations were accomplished under a stereo-microscope and the cytogenetic preparations in an optic microscope. recordings of floral buds and meiotic phases were performed with an image digitizing computer system. variations on the meiotic phases were observed within each class. although the approach based on anthocyanin pigmentation on anthers has been applied to another pepper varieties, it was not a reliable trait for determination of the microspore stage. meiotic phases were citogeneticaly identified, although bud stage could not be associated with it. on the other hand, buds having the same calyx and corolla sizes presented a larger number of microspores in a suitable stage for anther culture.
Uso de quitosana e embalagem plástica na conserva??o pós-colheita de pêssegos 'Dourad?o'
Santos, Carlos Augusto Amorim;Castro, Josalba Vidigal de;Picoli, Andressa Araujo;Rolim, Glauco de Souza;
Revista Brasileira de Fruticultura , 2008, DOI: 10.1590/S0100-29452008000100017
Abstract: the effects of chitosan treatment and modified atmosphere packaging (map) on shelf life of peaches cv. dourad?o were evaluated. chitosan, a natural biodegradable compound, has been proved to control numerous post harvest diseases. it extends the shelf life of treated fruit by reducing water loss. storage life of peaches has been extended using map during cold storage. fruits were dipped in 1% chitosan solution. one group of fruits was sealed in polyethylene bags. peaches were stored at 3oc and 90% rh. fruits were transferred to room temperature for 3 days to ripen. quality parameters (soluble solids, acidity, ratio, firmness, pulp and skin color) and losses (weight, wooliness incidence and rots) were determined. map reduced fruit weight loss during storage but increased decay incidence at room temperature. chitosan treatment was effective in brown rot reduction however showed detrimental effect on fruit appearance. treated and untreated peaches showed woolliness after 21 days of cold storage plus 3 days at room temperature. the desirable quality was retained up to 14 days of storage.
Diversidade genética de popula es naturais de Pfaffia glomerata (Spreng.) Pedersen estimada por marcadores RAPD = Genetic diversity in natural populations of Pfaffia glomerata (Spreng.) Pedersen estimated by RAPD markers
Takeshi Kamada,Edgard Augusto de Toledo Picoli,Acelino Couto Alfenas,Cosme Dami?o Cruz
Acta Scientiarum : Agronomy , 2009,
Abstract: Pfaffia glomerata é uma espécie nativa da América do Sul e de ocorrência natural em alguns Estados do Brasil. Porém, as popula es naturais de fáfia têm sido amea adas em decorrência do intenso extrativismo, em virtude de suas propriedades terapêuticas deinteresse. No presente estudo, objetivou-se estimar a diversidade genética de quatro popula es naturais oriundas da bacia do Rio Paraná. Os indivíduos foram multiplicados in vitro e caracterizados de acordo com o padr o eletroforético de marcadores RAPD, utilizando-se 268 marcas polimórficas obtidas a partir de 67 primers. As estimativas de distancia genética foram obtidas pelo complemento aritmético do coeficiente de Nei e Li, e os genótipos agrupados de acordo com o método UPGMA. Três popula es situadas próximas às margens do rio Paraná e na ilha do Mineiro apresentaram baixos índices de diversidade entre elas, e estas possuem o mesmo fluxo de dispers o dos propágulos. A popula o situada nas proximidades da margem do rio Ivaí (afluente do rio Paraná) apresentou maiores valores de diversidade dentro da popula o e entre as popula es,indicando que sua preserva o é prioritária e a origem da variabilidade pode estar relacionada ao fluxo de dispers o de propágulos. Pfaffia glomerata is a native species from South America, occurring naturally in some states of Brazil. The ever growing interest by thespecies, mainly due to its important therapeutic properties, has threatened the natural populations, as exploitation has occurred in a rather predatory way. The present study aimed to compare the genetic diversity of four natural populations originated from of thearea of the Paraná River basin (Paraná and Mato Grosso States). The individuals were propagated in vitro and characterized by means of RAPD markers. A total of 267 polymorphic marks were obtained from 67 primers. The genetic distance estimates were obtained based on the complement arithmetic of Nei and Li’s similarity coefficient, and thegenotypes were grouped according to the UPGMA method. Three populations from the margin of the Paraná River and at Mineiro Island presented low diversity levels among them, though possessing the same propagule dispersal flow. The population located in the proximities of the margin of the Ivaí river (tributary of the river Paraná) presented greater diversity values within and among the populations, suggesting that its preservation should be a priority and that the origin of the genetic variability may be related to the dispersionflow of the vegetative propagules.
Evaluating Enterprise Risk in a Complex Environment  [PDF]
Ivan De Noni, Luigi Orsi, Luciano Pilotti
Journal of Service Science and Management (JSSM) , 2010, DOI: 10.4236/jssm.2010.33041
Abstract: This paper examines the relationship between operational risk management and knowledge learning process, with an emphasis on establishing the importance of statistical and mathematical approach on organizational capability to forecast, mitigate and control uncertain and vulnerable situations. Knowledge accumulation reduces critical situations unpredictability and improves organizational capability to face uncertain and potentially harmful events. We retain mathematical and statistical knowledge is organizational key factor in risk measuring and management process. Statistical creativity contributes to make quicker the innovation process of organization improves exploration capacity to forecast critical events and increases problem solving capacity, adaptation ability and learning process of organization. We show some important features of statistical approach. First, it makes clear strategic importance of risk culture within every level of organization; quantitative analysis support the emergence of latent troubles and make evident vulnerability of organization. Second, innovative tools allow to improve risk management and organizational capability to measure total risk exposition and to define a more adequate forecasting and corrective strategy. Finally, it’s not so easy to distinguish between measurable risk and unmeasurable uncertainty, it depends on quantity and quality of available knowledge. Difficulty predictable extreme events can bring out crisis and vulnerable situations. Every innovative approach which increases knowledge accumulation and improves forecasting process should be considered.
A Proposal for a Geospatial Database to Support Emergency Management  [PDF]
Ivan Frigerio, Stefano Roverato, Mattia De Amicis
Journal of Geographic Information System (JGIS) , 2013, DOI: 10.4236/jgis.2013.54037
Abstract:

The basic procedure of the Italian Civil Protection Department aims at reducing disaster losses by giving prominence to a proactive strategy, focusing on prevision and prevention of hazard events rather than postdisater activities. Italian law commits municipalities to produce Emergency Plans that include risk scenarios as well as all data required for emergency management, such as structures, infrastructures and human resources. However the law in the matter of Civil Protection does not supply information about how to produce and archive necessary data for emergency planning and management. For this reason, we propose a standard methodology to create a geodatabase using GIS software, to collect all data that could be used by municipalities to create Emergency Plans. The resulting geodatabase provides a tool for hazard mitigation planning, allowing not only the identification of areas at risk, but also the structures, infrastructures and resources needed to overcome a crisis, thus improving all strategies of risk reduction and the resilience of the system [1].

Efeito "in vitro" de antibióticos e rizobactérias no controle de bactérias fitopatogênicas ao Eucalyptus spp.
Cunha, Jeane de Fátima;Picoli, Edgard Augusto de Toledo;Alfenas, Acelino Couto;Gon?alves, Rivadalve Coelho;
Revista árvore , 2006, DOI: 10.1590/S0100-67622006000600001
Abstract: diseases caused by bacteria represent a new challenge for eucalyptus spp. and may also limit the use of susceptible clones. our study aimed at an evaluation of the efficiency of antibiotics and rhizobacteria in inhibiting "in vitro" growth of phytopathogenic bacteria isolates in eucalyptus spp. during the nursery stage and in the field. the antibiotic amicacine sulfate and rhizobacterium s1 (bacillus subtilis) stood out inhibiting the growth of the phytopathogenic isolate ip1-05 (pseudomonas chichorii), whereas cefoxitin caused a greater inhibition of the isolates bsv16 and rvv11 (rhizobium sp.). the commercial antibiotics for agricultural use mycoshield (oxitetracycline) and agrimycin (estreptomycin and tetracycline) were little effective. this study offers a base for alternatives of biological control of bacterial diseases in eucalyptus spp. nursery seedlings.
Diversidade genética de popula??es naturais de Pfaffia glomerata (Spreng.) Pedersen estimada por marcadores RAPD
Kamada, Takeshi;Picoli, Edgard Augusto de Toledo;Alfenas, Acelino Couto;Cruz, Cosme Dami?o;Vieira, Roberto Fontes;Otoni, Wagner Campos;
Acta Scientiarum. Agronomy , 2009, DOI: 10.4025/actasciagron.v31i3.548
Abstract: pfaffia glomerata is a native species from south america, occurring naturally in some states of brazil. the ever growing interest by the species, mainly due to its important therapeutic properties, has threatened the natural populations, as exploitation has occurred in a rather predatory way. the present study aimed to compare the genetic diversity of four natural populations originated from of the area of the paraná river basin (paraná and mato grosso states). the individuals were propagated in vitro and characterized by means of rapd markers. a total of 267 polymorphic marks were obtained from 67 primers. the genetic distance estimates were obtained based on the complement arithmetic of nei and li's similarity coefficient, and the genotypes were grouped according to the upgma method. three populations from the margin of the paraná river and at mineiro island presented low diversity levels among them, though possessing the same propagule dispersal flow. the population located in the proximities of the margin of the ivaí river (tributary of the river paraná) presented greater diversity values within and among the populations, suggesting that its preservation should be a priority and that the origin of the genetic variability may be related to the dispersion flow of the vegetative propagules.
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