DETERMINATION OF ETHYLENE IN CONTROLLED ATMOSPHERE STORES IN SANTA CATARINA, SOUTHERN BRAZIL

1988 ◽  
pp. 259-259
Author(s):  
R.J. Bender
2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Ricardo Gobato ◽  
Alireza Heidari

An “explosive extratropical cyclone” is an atmospheric phenomenon that occurs when there is a very rapid drop in central atmospheric pressure. This phenomenon, with its characteristic of rapidly lowering the pressure in its interior, generates very intense winds and for this reason it is called explosive cyclone, bomb cyclone. With gusts recorded of 116 km/h, atmospheric phenomenon – “cyclone bomb” (CB) hit southern Brazil on June 30, the beginning of winter 2020, causing destruction in its influence over. One of the cities most affected was Chapecó, west of the state of Santa Catarina. The satellite images show that the CB generated a low pressure (976 mbar) inside it, generating two atmospheric currents that moved at high speed. In a northwest-southeast direction, Bolivia and Paraguay, crossing the states of Parana and Santa Catarina, and this draft that hit the south of Brazil, which caused the destruction of the affected states.  Another moving to Argentina, southwest-northeast direction, due to high area of high pressure (1022 mbar). Both enhanced the phenomenon.


2017 ◽  
Vol 26 (3) ◽  
pp. 292-298 ◽  
Author(s):  
Cesar Augusto Barbosa de Macedo ◽  
Madlaine Frigo Silveira Barbosa de Macedo ◽  
Ana Carolina Miura ◽  
Alessandra Taroda ◽  
Sergio Tosi Cardim ◽  
...  

Abstract The aim of the present study was to investigate the occurrence of N. caninum associated with abortions of dairy cattle from Santa Catarina state, southern Brazil by using enzyme-linked immunosorbent assay (ELISA), immunohistochemistry (IHC), and polymerase chain reaction (PCR). Blood from dairy cows that aborted along with intrathoracic fluid and tissue samples (brain, heart, liver, and lung) from their fetuses were collected and used for serology; PCR, histopathological, and immunohistochemistry (IHC) evaluations were also conducted. Twenty-one cows (51.2%) out of 41, and eight fetuses (26.7%) out of 30 were ELISA (HerdCheck, IDEXX) positive for N. caninum. Dams > 36 months of age had a higher risk of being serum positive than younger animals. PCR and IHC revealed that 38.8% (14/36) and 25.0% (9/36) of the fetuses were positive for N. caninum, respectively for each of the tests. Seropositive cows had a higher frequency of fetuses that were also positive by either intrathoracic fluid, PCR, or IHC. In summary, the present study observed a high frequency of N. caninum in abortions from dairy cows from southern Brazil, with a higher N. caninum prevalence found in cows that were older than 36 months. In addition, serology, PCR, and IHC should be used all together for better diagnosis of neosporosis in cattle.


2015 ◽  
Vol 110 (5) ◽  
pp. 618-623 ◽  
Author(s):  
Rodrigo Ivan Prim ◽  
Marcos André Schörner ◽  
Simone Gonçalves Senna ◽  
Christiane Lourenço Nogueira ◽  
Anna Carolina Cançado Figueiredo ◽  
...  

2006 ◽  
Vol 10 (2) ◽  
pp. 110-115 ◽  
Author(s):  
Eduardo Walker Zettler ◽  
Rosane Machado Scheibe ◽  
Cícero A.G. Dias ◽  
Patrícia Santafé ◽  
Diógenes Santiago Santos ◽  
...  

Phytotaxa ◽  
2018 ◽  
Vol 364 (3) ◽  
pp. 275
Author(s):  
CASSIO RABUSKE DA SILVA ◽  
JOSIMAR KÜLKAMP

Valeriana iganciana, an endemic species from the Serra do Tabuleiro highlands of Santa Catarina state, southern Brazil, is described and illustrated. The new species shares morphological affinities with V. ulei, from which it is distinguished mainly by leaves with entire margin, by the cymose architecture of the inflorescence and by the triquetrous and elliptical fruits with annular to dentate calyx.


2004 ◽  
Vol 52 (3-4) ◽  
pp. 183-194 ◽  
Author(s):  
Ricardo Luiz Queiroz ◽  
Frederico Pereira Brandini ◽  
Franciane Maria Pellizzari

The composition and biomass of the microalgal community at the water-column/sediment interface on the continental shelf off Parana State (Brazil) were studied every 2 months during 1999. Samples for cell identification and determination of chlorophyll a were taken from the interface layer and at discrete depths up to 4 m above the sediment. Results showed a community mainly formed by benthic and planktonic diatoms >30 µm, benthic diatoms <30 µm and cyanobacteria. Cell densities were generally higher at the interface layer. Resuspension and sedimentation events seemed to be a paramount factor regulating the composition and biomass of these communities, and affected differently cells of different size classes. Cells >30 µm, which accounted for most of the pigment biomass, were resuspended from the interface after turbulent periods, and may take advantage of calm periods to stay and grow at the interface. Small benthic diatoms were more susceptible to wind-induced turbulence occurring in higher densities in the water column just above the water-sediment interface. A cyanobacterial bloom (Trichodesmiun) was observed at these bottom layers in the spring-summer periods.


2016 ◽  
Vol 38 (2) ◽  
Author(s):  
REMI NATALIN DAMBROS ◽  
MARCO ANTONIO DALBÓ ◽  
CRISTIANO JOÃO ARIOLI ◽  
MILTON DA VEIGA

ABSTRACT The incidence of grapevine decline and dye back is quite severe in grapevine-growing regions of southern Brazil, especially in the Midwest of Santa Catarina State. Field studies on problematic areas identified the presence of the Brazilian ground pearl or margarodes (Eurhizococcus brasiliensis Hempel) and soil fungi (Cylindrocarpon, Fusarium and others) associated with the disease. Soil characteristics such as high clay content and poor aeration were associated with the problem. To evaluate the effect of pre-planting tillage in reducing the incidence of grapevine decline, an experiment was carried out with two rootstocks and three pre-planting tillage (regular plowing, drains, and ridges) in an area where high plant mortality had been previously observed. Pre-planting tillage with the use of ridges along the rows gave the best results with a drastic reduction in the decline incidence. The number of ground pearl cysts was unaffected by pre-planting tillage and did not relate with the incidence of decline and death of plants.


Zootaxa ◽  
2005 ◽  
Vol 1046 (1) ◽  
pp. 37 ◽  
Author(s):  
LUIZ CARLOS DE PINHO ◽  
HUMBERTO FONSECA MENDES ◽  
CARLOS BRISOLA MARCONDES

All life stages of Stenochironomus atlanticus Pinho & Mendes sp. n. are described and figured. The larva mines decaying leaves held in the water of several bromeliad species (Canistrum lindenii (Regel) Mez, Neoregelia laevis (Mez) L.B. Smith, Nidularium innocentii Lemaire, Vriesea philippocoburgii Wawra, and Vriesea vagans (L.B. Smith) L.B. Smith.) in the Atlantic Rain Forest in southern Brazil [Desterro Environmental Conservation Unit (Unidade de Conservação Ambiental Desterro – UCAD), Santa Catarina Island]. Stenochironomus atlanticus is the only species in the genus found in the phytotelmata habitat, and it apparently is restricted to this environment.


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