24 research outputs found
Avaliação de biofertilizantes, extratos vegetais e diferentes substâncias alternativas no manejo de tripes em cebola em sistema orgânico.
Avaliou-se substâncias alternativas no manejo de tripes (Thrips tabaci Lind.), em cebola, cv, Crioula, no sistema orgânico. Os experimentos foram conduzidos na EPAGRI, Ituporanga (SC). Os períodos entre transplante e colheita foram de 11/09/1996 a 10/01/1997 e 13/08/1997 a 11/12/1997. O delineamento foi de blocos ao acaso com 8 tratamentos em 1996 e 12 tratamentos em 1997 e quatro repetições. Em 1996 os tratamentos incluíram o biofertilizante anaeróbico 50%, biofertilizante aeróbico 5%, sulfato de manganês 1%, extrato hidroalcoólico de própolis 0,2%, macerado de ervas (“fersoral”) 2% e 4%, extrato de fumo (Nicotiana tabacum) 2 L ha-1 + 1% detergente neutro, testemunha sem aplicação. Em 1997 os tratamentos incluíram o macerado de ervas (“fersoral”) 5% 10%, enxofre pó molhável 0,25% + extrato hidroalcoólico de própolis 0,2% + extrato de samambaia 3%, biofertilizante anaeróbico 50%, biofertilizante aeróbico 5%, extrato de losna (Artemisia verlotorum) 3%, extrato de timbó (Ateleia glazioviana) 0,5%, extrato de samambaia (Pteridium aquilinum) 10%, extrato de erva-de-santa-maria (Chenopodium ambrosioides) 10%, extrato de cinamomo (Melia azedarach) 10%,extrato de camomila (Matricaria chamomilla) 5%, testemunha sem aplicação. Para aplicação dos produtos empregou-se pulverizador de pressão constante a base de CO2. Os tratamentos não causaram redução significativa na incidência de tripes e aumentos significativos na produtividade
Integrated Health Service Delivery Networks And Tuberculosis Avoidable Hospitalizations: Is There A Relation Between Them In Brazil?
The early identification of the Breathing Symptoms within the scope of Primary Health Care is recommended, and is also one of the strategies of national sanitary authorities for reaching the elimination of tuberculosis. The purpose of this study is to consider which attributes and which territories have shown the most significant progress in Primary Health Care, in terms of coordination of Health Care Networks, and also check if those areas of Primary Health Care that are most critical regarding coordination, there were more or less cases of avoidable hospitalizations for tuberculosis. Methods: This is an ecological study that uses primary and secondary data. For analysis, coropletic maps were developed through the ArcGIS software, version 10.2. There was also the calculation of gross annual and Bayesian rates for hospitalizations for tuberculosis, for each Primary Health Care territory. Results: There were satisfactory results for attributes such as Population (n = 37; 80.4 %), Primary Health Care (n = 43; 93.5 %), Support System (n = 45; 97.8 %); the exceptions were Logistics System (n = 32; 76.0 %) and Governance System, with fewer units in good condition (n = 31; 67.3 %). There is no evidence of any connection between networks' coordination by Primary Health Care and tuberculosis avoidable admissions. Conclusion: The results show that progress has been made regarding the coordination of the Health Care Networks, and a positive trend has been shown, even though the levels are not excellent. It was found no relationship between the critical areas of Primary Health Care and tuberculosis avoidable hospitalizations, possibly because other variables necessary to comprehend the phenomena. © 2016 Popolin et al.16
Biofertilizante agrobio: Uma alternativa no controle da mancha bacteriana em mudas de pimentão (Capsicum annuum l.)
Agrobio é um biofertilizante líquido fabricado à base de esterco bovino, água, melaço e sais minerais, que são submetidos a um processo de fermentação à temperatura ambiente por 56 dias em recipientes abertos. Este produto tem sido largamente utilizado com sucesso por agricultores orgânicos e convencionais em todo o estado do Rio de Janeiro, no controle de várias enfermidades vegetais em diferentes culturas. Em bioensaios realizados em casa de vegetação, observou-se uma ação bacteriostática equivalente a de produtos químicos comerciais contra Xanthomonas campestris pv. vesicatoria em mudas de pimentão (Capsicum annuum L.), numa concentração de 5%. Nos bioensaios in vitro, onde foram testadas as concentrações de 2, 5 10 e 50% do Agrobio comercial, observouse que, a partir da concentração de 5%, ocorreu um nível satisfatório de inibição do crescimento bacteriano, apesar deste ter sido inferior ao obtido com o uso de sulfato de cobre e sulfato
de estreptomicina
Technological Forecasting: Heat Pumps And The Synergy With Renewable Energy
The possession and use of air conditioning in the residential sector is increasing and shifting the electricity energy use peak from Winter to Summer in Europe. As the average income grows, electricity consumption is expected to be higher, especially in developing countries, as these appliances are linked to thermal comfort in dwellings. A great effort has been made, especially in Europe and China, to study and deploy technologies driven by renewable energy. Using the Delphi technique, specialists from all continents were questioned about the future technology of air conditioning for residential use in a 20-30 year future. About half of the specialists answered that vapor compression cycle will be the main technology with direct heat dissipation to outside air. The investment and operational costs were classified as the key evaluation factor together with the Seasonal Performance Factor to compare systems and technologies. Despite the low use perspective of solar thermal energy for air conditioning, it is expected to be almost a standard for DHW in a 20-30 year period.4816501657European Commission. 2020-2030-2050-Common Vision for the Renewable Heating &Cooling sector in Europe: European Technology Platform on Renewable Heating and Cooling. Luxembourg: Publications Office of the European Union, 2011Bertoldi, P., Atanasiu, C., (2010) Electricity Consumption and Efficiency Trends in the European Union-Status Report 2009, , Luxembourg: Publications Office of the European Unionhttp://www.solair-project.eu, Solair Project. 2009. SOLAIR Guidelines: Requirements on the Design and configuration of small and medium sized solar air-conditioning applications. Accessed in 2012 Dec 20Omer, A.M., Ground-source heat pumps systems and applications (2008) Renew Sust Energ Rev, 12, pp. 344-371Kim, D.S., Infante Ferreira, C.A., Solar refrigeration options-a state-of-The-art review (2008) J Refrig, 31, pp. 3-15Porter, A.L., Technology futures analysis: Toward integration of the field and new methods (2004) Technol Forecast Soc, 71, pp. 287-303Linstone, H.A., Turoff, M., (2002) The Delphi Method-Techniques and Applications, , http://www.is.njit.edu/pubs/delphibook/index.html, Online ed. Murray Turoff and Harold A. LinstoneRowe, G., Wright, G., The Delphi technique as a forecasting tool: Issues and analysis (1999) J Forecasting, 15, pp. 353-375Linstone, H.A., Turoff, M., Delphi: A brief look backward and forward (2011) Technol Forecast Soc, 78, pp. 1712-1719Woon, W.L., Zeineldin, H., Madnick, S., Bibliometric analysis of distributed generation (2011) Technol Forecast Soc, 78, pp. 408-420Losiewicz, P., Oard, D.W., Kostoff, R.N., Textual Data Mining to Support Science and Technology Management (2000) J Intell Inf Syst, 15, pp. 99-119Kleer, R., Government R&d subsidies as a signal for private investors (2010) Res Policy, 39, pp. 1361-1374Glenn, J.C., Gordon, T.J., The delphi method (2009) Future Research Methodology, V-3. 0. The Millennium Project, , In: Glen JC, Gordon TJ, editors. CDBalaras, C.A., Solar air conditioning in Europe-an overview (2007) Renew Sust Energ Rev, 11, pp. 299-31
Rat visceral yolk sac cells: viability and expression of cell markers during maternal diabetes
The function of the visceral yolk sac (VYS) is critical for embryo organogenesis until final fetal development in rats, and can be affected by conditions such as diabetes. In view of the importance of diabetes during pregnancy for maternal and neonatal health, the objective of this study was to assess fetal weight, VYS cell markers, and viability in female Wistar rats (200-250 g) with induced diabetes (alloxan, 37 mg/kg) on the 8th gestational day (gd 8). At gd 15, rats from control (n=5) and diabetic (n=5) groups were anesthetized and laparotomized to remove the uterine horns for weighing of fetuses and collecting the VYS. Flow cytometry was used for characterizing VYS cells, and for determining mitochondrial activity, cell proliferation, DNA ploidy, cell cycle phases, and caspase-3 activity. Fetal weight was reduced in the diabetic group. Expression of the cell markers CD34, VEGFR1, CD115, CD117, CD14, CCR2, CD90, CD44, STRO-1, OCT3/4, and Nanog was detected in VYS cells in both groups. In the diabetic group, significantly decreased expression of CD34 (P<0.05), CCR2 (P<0.001), and OCT3/4 (P<0.01), and significantly increased expression of CD90 (P<0.05), CD117 (P<0.01), and CD14 (P<0.05) were observed. VYS cells with inactive mitochondria, activated caspase-3, and low proliferation were present in the rats with diabetes. Severe hyperglycemia caused by maternal diabetes had negative effects on pregnancy, VYS cell viability, and the expression of cell markers
In vitro release study of 2-ethylhexyl-p-methoxycinnamate included in liposome and β-cyclodextrin
O objetivo deste estudo foi comparar a liberação do p-metoxicinamato de octila (MCO) a partir de três formulações em gel. A primeira contendo o MCO livre, a segunda contendo o MCO incluso em β-ciclodextrina (β-CD/MCO) e a terceira contendo o MCO incluso em lipossoma (lipossoma/MCO). O estudo de liberação foi realizado em células de difusão do tipo Franz usando membrana artifi cial de acetato de celulose. A concentração de MCO liberada foi determinada por cromatografi a líquida de alta efi ciência (CLAE). Os perfis de liberação in vitro mostraram que a inclusão do MCO nesses sistemas de liberação reduziu a liberação do MCO para a solução receptora comparando com a formulação de MCO livre. Entre as formulações de β-CD/MCO e lipossoma/MCO, a que liberou menor concentração de MCO para a solução receptora foi a formulação de lipossoma/MCO, mostrando os melhores resultados.The aim of this study was to compare the release of the UV fi lter 2-ethylhexyl-p-methoxycinnamate (EHMC) from three gel formulations. The fi rst contained free EHMC, the second an EHMC/β-cyclodextrin inclusion complex (β-CD/EHMC) and in the last, EHMC was included in liposomes (liposome/EHMC). The release tests were carried out in Franz type diffusion cells with an artifi cial membrane of cellulose acetate. Theconcentration of released EHMC was quantifi ed by high performance liquid chromatography (HPLC). Release profi les showed that the inclusion of EHMC in these delivery systems reduced the rate of EHMC release into the receptor solution, relative to the free EHMC formulation. Comparing liposome/EHMC and β-CD/EHMC formulations, liposome/EHMC was found to release a smaller sunscreen concentration during the test, thus providing the best result
Identification of a novel agonist-like autoantibody in preeclamptic patients
BACKGROUND: Recent studies have shown that preeclampsia (PE) is associated with the presence of autoantibodies (AABs) that activate the angiotensin II AT1 receptor, which could contribute to many of the symptoms of PE. METHODS: To investigate the frequency and the targets of AABs in preeclamptic women (31 cases) and healthy pregnant normotensive women (29 cases) in Brazil, antibodies from serum samples were detected by a bioassay using spontaneously beating neonatal rat cardiomyocytes in culture. In the cardiomyocytes, the agonistic AABs induce a positive or negative chronotropic response, mimicking the corresponding receptor agonists. The specificity of the AAB response was identified by specific receptor antagonists. RESULTS: Thirty preeclamptic patients (97%) presented AABs against the angiotensin II AT1 receptor. The agonistic effect of the AAB was blocked by irbesartan and neutralized by a peptide corresponding to the second extracellular loop of this receptor. Strikingly, we discovered that all sera from the severe preeclamptic patients (16 cases) contained a novel agonist-like AAB directed against the endothelin-1 ETA receptor in addition to the AABs against the angiotensin II AT1 receptor. This AAB was selectively blocked by the antagonist BQ-123, antagonized by the protein kinase C (PKC) inhibitor Calphostin C and neutralized by peptides corresponding to the second extracellular loop of the endothelin-1 ETA receptor subtype. CONCLUSIONS: We described, for the first time, the presence of endothelin-1 ETA receptor AABs in PE. Our results suggest that the presence of both agonistic AABs may be involved in the pathogenesis of severe PE
Síndrome de Eisenmenger em um gato
ABSTRACT A 6-month-old female, 1.0kg, uncastrated female Persian cat was brought to the Veterinary Hospital at State University of Ceara, with a history of dyspnea, prostration, hyporexia and progressive weight loss for a month. On physical examination, systolic cardiac murmur, cyanosis and dyspnea were detected. Unfortunately, the cat died during oxygen therapy. Necropsy examination revealed an increase in cardiac silhouette and ventricular septal defect of 2cm in diameter. Macroscopically the lungs were collapsed, with absent and diffusely reddish blackish crepitus, and the liver with blackish red coalescent multifocal areas, interspersed with lighter areas and lobular pattern with irregular brownish multifocal areas intercepted by brownish areas. Thus, the necropsy results together with the history and physical examination of the animal confirmed the diagnosis of Eisenmenger Syndrome, becoming the report of the first case, in a cat, in Brazil
Constitutional haploinsufficiency of tumor suppressor genes in mentally retarded patients with microdeletions in 17p13.1
Chromosome microdeletions or duplications are detected in 10-20% of patients with mental impairment and normal karyotypes. A few cases have been reported of mental impairment with microdeletions comprising tumor suppressor genes. By array-CGH we detected 4 mentally impaired individuals carrying de novo microdeletions sharing an overlapping segment of ~180 kb in 17p13.1. This segment encompasses 18 genes, including 3 involved in cancer, namely KCTD11/REN, DLG4/PSD95, and GPS2. Furthermore, in 2 of the patients, the deletions also included TP53, the most frequently inactivated gene in human cancers. The 3 tumor suppressor genes KCTD11, DLG4, and GPS2, in addition to the GABARAP gene, have a known or suspected function in neuronal development and are candidates for causing mental impairment in our patients. Among our 4 patients with deletions in 17p13.1, 3 were part of a Brazilian cohort of 300 mentally retarded individuals, suggesting that this segment may be particularly prone to rearrangements and appears to be an important cause (~1%) of mental retardation. Further, the constitutive deletion of tumor suppressor genes in these patients, particularly TP53, probably confers a significantly increased lifetime risk for cancer and warrants careful oncological surveillance of these patients. Constitutional chromosome deletions containing tumor suppressor genes in patients with mental impairment or congenital abnormalities may represent an important mechanism linking abnormal phenotypes with increased risks of cancer