scholarly journals Selection of Lactobacillus Species from Intestinal Microbiota of Fish for Their Potential Use as Biopreservatives

Author(s):  
Mahdi Ghanbari ◽  
Masoud Rezaei ◽  
Mansoureh Jami

2006 ◽  
Vol 96 (3) ◽  
pp. 264-268
Author(s):  
Charles R. Fikar ◽  
Brigitte Delinois

An updated selection of high-quality Internet resources related to wound and ulcer care is presented. Of potential use to the podiatric medical practitioner, educator, resident, and student, some Web sites that cover hyperbaric medicine, antibiotic use, and wound and ulcer prevention are also included. These Web sites have been evaluated on the basis of their potential to enhance the practice of podiatric medicine, in addition to contributing to the educational process. Readers who require a quick reference source to wound and ulcer care may find this report useful. (J Am Podiatr Med Assoc 96(3): 264–268, 2006)



2015 ◽  
Vol 33 (3) ◽  
pp. 521-534 ◽  
Author(s):  
G. B. P BRAZ ◽  
R. S OLIVEIRA JR ◽  
J. CONSTANTIN ◽  
H. K. TAKANO ◽  
C. A. CHASE ◽  
...  

ABSTRACT The increase in the area planted with Crotalaria spectabilishas occurred by several factors, highlighting the potential to reduce the nematodes, nitrogen fixation and the high production of biomass. By becoming a species sown as a crop, it is necessary to control the weeds that coexist with showy crotalaria. This change in the use of this crop creates the possibility of this specie becoming a weed. The aim of this study was to assess the potential use of herbicides applied in preemergence and postemergence of C.spectabilisfor different purposes (control of volunteer and selectivity plants). Three experiments were installed in a greenhouse (two with herbicides applied in preemergence - in soils with distinct textural categories; and one experiment with herbicides applied in postemergence). The results of the experiments with herbicides applied in preemergence showed that: amicarbazone, atrazine, diuron, metribuzin, prometryn, fomesafen and sulfentrazone showed effectiveness for control of C.spectabilis in clayey soil. Besides these, flumioxazin and isoxaflutole also showed potential to be used in the control of showy crotalaria in soils with loam texture. In relation to the postemergence herbicides, atrazine, diuron, prometryn, flumioxazin, fomesafen, lactofen, saflufenacil, amonio-glufosinate and glyphosate can be used aiming the chemical control of C.spectabilis. Herbicides chlorimuron-ethyl, diclosulan, imazethapyr, pyrithiobac-sodium, trifloxysulfuron-sodium, clomazone, pendimethalin, S-metolachlor and trifluralin applied in preemergence, and imazethapyr, pyrithiobac-sodium, flumiclorac, bentazon and clethodim applied in postemergence caused low levels of injury to C.spectabilis plants, making necessary the development of new searches to ensure the selectivity of these products.



ScientiaTec ◽  
2020 ◽  
Vol 7 (03) ◽  
Author(s):  
Giandra Volpato ◽  
Victória Furtado Migliavacca ◽  
Bruna Coelho de Andrade ◽  
Júlio Xandro Heck ◽  
Marco Antônio Záchia Ayub

The industrial application of lipolytic enzymes has been studied mainly due to the ability of these enzymes in catalyze reactions of synthesis and their stability in various organic solvents. One possibility is the use of lipase the organic synthesis, taking advantage as the generation of waste and difficult recovery of sub bioproducts. In this work, we carried out a selection of eighty-four isolates of Bacillus amazonian for lipase production, of which 30 strains showed lipolytic activity. The study of the culture conditions was performed through a Plackett-Burman experimental design using the strain that presented the highest lipolytic activity in a culture medium using glycerol as substrate.  The studied conditions were: concentration of soybean oil, olive oil, triton X-100, gum arabic, glycerol, and (NH4)2SO4, pH, temperature and concentration of inoculums. The best result obtained were 27 U/L in 48 h of cultivation by Bacillus circulans BL53. This work shows that the search and selection of microorganism with lipolytic activities can facilitate the discovery of new lipases, with potential use as by-product surplus.



2019 ◽  
Vol 11 (19) ◽  
pp. 2200 ◽  
Author(s):  
Léo Edel ◽  
Jean-François Rysman ◽  
Chantal Claud ◽  
Cyril Palerme ◽  
Christophe Genthon

This study evaluates the potential use of the Microwave Humidity Sounder (MHS) for snowfall detection in the Arctic. Using two years of colocated MHS and CloudSat observations, we develop an algorithm that is able to detect up to 90% of the most intense snowfall events (snow water path ≥400 g m−2 and 50% of the weak snowfall rate events (snow water path ≤50 g m−2. The brightness temperatures at 190.3 GHz and 183.3 ± 3 GHz, the integrated water vapor, and the temperature at 2 m are identified as the most important variables for snowfall detection. The algorithm tends to underestimate the snowfall occurrence over Greenland and mountainous areas (by as much as −30%), likely due to the dryness of these areas, and to overestimate the snowfall occurrence over the northern part of the Atlantic (by up to 30%), likely due to the occurrence of mixed phase precipitation. An interpretation of the selection of the variables and their importance provides a better understanding of the snowfall detection algorithm. This work lays the foundation for the development of a snowfall rate quantification algorithm.



1991 ◽  
Vol 18 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Slobodan P. Simonovic

Knowledge-based systems were brought to the attention of hydrologists almost a decade ago. The application of knowledge-based systems technology is natural and appropriate for the field of hydrology because it contains numerous procedures developed from theory, actual practice, and experience. The emphasis of the present paper is on demystifying knowledge-based systems of artificial intelligence. After a detailed review of the most important applications to the field of hydrology, the original concept for applying knowledge-based technology is presented. The discussion ends with the list of possible benefits from the application of knowledge-based technology. An expert system for the selection of a suitable method for flow measurement in open channels is used as a case study to illustrate the discussion in the paper. The system has been designed for potential use in Environment Canada. Key words: expert system, water resources, hydrology, flow measurements.



1992 ◽  
Vol 4 (4) ◽  
pp. 434-440 ◽  
Author(s):  
Kevin T. Cavanagh ◽  
Margaret Z. Jones ◽  
Bruce Abbitt ◽  
Ronald Skinner

Plasma β-mannosidase activities were determined for Salers cattle from 8 herds as an evaluation of this method for detection of β-mannosidosis heterozygotes. Several biological factors, such as age, gender, herd, and risk of being a β-mannosidosis carrier, were considered in this study. The mean enzyme activity for obligate heterozygotes (n = 8) was 55 U/ml (range = 43–65 U/ml), which was 59% of the mean enzyme activity for cattle that were low risk for being a carrier. These data indicate that bovine β-mannosidosis is characterized by a gene dosage effect. The analytical and biological variation of plasma β-mannosidase activity that was observed necessitates limiting the test to adult fullblood/purebred Salers cattle within a herd. Plasma β-mannosidase analysis provides important information for intraherd selection of Salers cattle that are heterozygous for β-mannosidosis.



2010 ◽  
Vol 139 (6) ◽  
pp. 836-848 ◽  
Author(s):  
H. RAHMANDAD ◽  
K. HU ◽  
R. J. DUINTJER TEBBENS ◽  
K. M. THOMPSON

SUMMARYWe developed an individual-based (IB) model to explore the stochastic attributes of state transitions, the heterogeneity of the individual interactions, and the impact of different network structure choices on the poliovirus transmission process in the context of understanding the dynamics of outbreaks. We used a previously published differential equation-based model to develop the IB model and inputs. To explore the impact of different types of networks, we implemented a total of 26 variations of six different network structures in the IB model. We found that the choice of network structure plays a critical role in the model estimates of cases and the dynamics of outbreaks. This study provides insights about the potential use of an IB model to support policy analyses related to managing the risks of polioviruses and shows the importance of assumptions about network structure.



2014 ◽  
Vol 97 (1) ◽  
pp. 8-17 ◽  
Author(s):  
Jaime D. Babot ◽  
Eloy Argañaraz-Martínez ◽  
Lucila Saavedra ◽  
María C. Apella ◽  
Adriana Perez Chaia


2006 ◽  
Vol 96 (2) ◽  
pp. 162-166 ◽  
Author(s):  
Charles R. Fikar

An updated selection of high-quality Internet resources of potential use to the podiatric medical practitioner, educator, resident, and student is presented. Internet search tools and general Internet reference sources are briefly covered, including methods of locating material residing on the “invisible” Web. General medical and podiatric medical resources are emphasized. These Web sites were judged on the basis of their potential to enhance the practice of podiatric medicine in addition to their contribution to education. Podiatric medical students, educators, residents, and practitioners who require a quick reference guide to the Internet may find this article useful. (J Am Podiatr Med Assoc 96(2): 162–166, 2006)



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