Eco-innovation assessment of biodigesters technology: an application in cassava processing industries in the south of Brazil, Parana state

Abstract Intestinal parasitic infections in immunocompromised patients can lead to serious complications when not diagnosed and treated early. This study aimed to investigate the frequency of intestinal parasites in cancer patients undergoing chemotherapy in the South of Brazil. Three fecal samples collected from each patient (73 individuals) were processed by Ritchie and Faust techniques and submitted to specific staining methods for intestinal protozoa. A 61.6% parasite and/or commensal positivity was found. Helminths identified were Ascaris lumbricoides (33.3%), Taenia spp. (6.6%), Strongyloides stercoralis (4.4%) and Trichuris trichiura (2.2%). Among protozoans, Giardia lamblia (26.6%), Cryptosporidium spp. (13.3%) and Cystoisospora belli (4.4%) were identified. The presence of Entamoeba coli, Endolimax nana and Entamoeba hartmanni was also recorded. The results obtained warn of the importance of fecal parasitological diagnosis and the use of specific staining methods for the detection of intestinal parasites in cancer patients. These exams should be regularly requested at the patient’s first clinic visit, given the high prevalence found in this study and the possible severity of such conditions for these individuals.

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Globe fringerush (Fimbristylis miliacea) cross resistance to als-inhibitor herbicides under field conditions in irrigated rice in the south of Brazil

Planta Daninha ◽

10.1590/s0100-83582013000400016 ◽

2013 ◽

Vol 31 (4) ◽

pp. 893-902 ◽

Cited By ~ 3

Author(s):

C.E. Schaedler ◽

J.A. Noldin ◽

D.S. Eberhardt ◽

D. Agostinetto ◽

N.R. Burgos

Keyword(s):

Grain Yield ◽

Weed Control ◽

Rice Fields ◽

Field Conditions ◽

Cross Resistance ◽

Herbicide Application ◽

The South ◽

Santa Catarina ◽

Irrigated Rice ◽

South Of Brazil

ALS-inhibiting herbicides usually provide adequate weed control in irrigated rice fields. After consecutive years of use, the Cyperaceae species, globe fringerush (Fimbristylis miliacea) began to show resistance to ALS (acetolactate synthase) inhibitors. Globe fringerush is one of the most problematic herbicide-resistant weeds in irrigated rice in the state of Santa Catarina in the South of Brazil. The objective of this research was to examine cross resistance of globe fringerush to ALS inhibitors, under field conditions. Two experiments were conducted in a rice field naturally infested with ALS-resistant globe fringerush in Santa Catarina, in the 2008/09 and 2009/10 cropping seasons. The experimental units were arranged in randomized complete block design, with five replicates, consisting of two factors (herbicide and dose) in a 4 x 5 factorial arrangement. ALS herbicides included bispyribac-sodium, ethoxysulfuron, pyrazosulfuron-ethyl and penoxsulam. Six-leaf globe fringerush was sprayed with herbicide doses of 0, 0.5, 1, 2 and 4X the recommended doses in a spray volume of 200 L ha-1. The number of rice culm, filled and sterile grains, plant height, dry shoot biomass and grain yield were recorded. Globe fringerush control was evaluated 28 and 70 days after herbicide application (DAA); shoots were harvested at 13 weeks after herbicide application and dry weight recorded. Competition with globe fringerush reduced the number of culm and rice grain yield. The globe fringerush biotype in this field was resistant to all ALS herbicides tested. Penoxsulam had the highest level of activity among treatments at 28 and 70 DAA, but the control level was only 50% and 42%, respectively, in the second year of assessment. This was not enough to prevent rice yield loss. Alternative herbicides and weed control strategies are necessary to avoid yield losses in rice fields infested with ALS-resistant biotypes of globe fringerush.

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Pro-environmental marketing and sustainable products in compliance with regulation: a study in the south of Brazil

International Journal of Sustainable Development & World Ecology ◽

10.1080/13504509.2015.1053102 ◽

2015 ◽

Vol 22 (4) ◽

pp. 324-334 ◽

Cited By ~ 1

Author(s):

Margareth Rodrigues de Carvalho Borella ◽

Paulo Fernando Pinto Barcellos

Keyword(s):

The South ◽

Environmental Marketing ◽

Sustainable Products ◽

South Of Brazil

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Preliminary study on the case of black rain in Rio Grande do Sul, Brazil: A synoptic point of view

Revista Brasileira de Geografia Física ◽

10.26848/rbgf.v14.3.p1268-1281 ◽

2021 ◽

Vol 14 (3) ◽

pp. 1268

Author(s):

Maicon Moraes Santiago ◽

Gabriel Borges dos Santos ◽

Iulli Pitone Cardoso ◽

André Becker Nunes

Keyword(s):

Forest Fires ◽

General Circulation ◽

Rio Grande ◽

Reanalysis Data ◽

Point Of View ◽

Rio Grande Do Sul ◽

The South ◽

Low Level ◽

Suspended Particulate ◽

South Of Brazil

Particles of soot from forest fires are transported by the wind, reaching distant locations and being deposited on the soil through precipitation, which clears the atmosphere, taking suspended particulate matter into its drops. The general circulation over South America indicates the possibility of soot from forest fires in the Amazon and Pantanal to be transported to southern Brazil. The event called “black rain” was observed in the period from 11 to 13 September 2020 at São Francisco de Assis City, in Rio Grande do Sul State (RS), and so this work aims to analyze if there were any anomalies of the flow that favored the occurrence of this event, given that there was a large number of fires in this period. Through ERA5 reanalysis data and GOES-16 satellite images, it was observed that on the three days under study low-level flow to the south of Brazil was more intense than normal, with the Low Level Jet occurrences, and on days 12 and 13 such flow to the south was also observed at 500 hPa. The precipitation was due to the instability of an extended trough from the Northwestern Argentinean Low. Thus, it is believed that there was a contribution from circulation at low and mid levels in the occurrence of black rain over RS.

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