THE DANUBE WATER INTEGRATED MANAGEMENT (WATER) PROJECT � THE LITHOLOGICAL AND HYDROGEOLOGICAL CHARACTERIZATION OF THE QUATERNARY DEPOSITS ON THE LEFT SIDE OF THE DANUBE, BETWEEN VEDEA AND ARGES RIVERS (ROMANIA)

2014 ◽  
Author(s):  
Emil RADU
Keyword(s):  
Integrated Management ◽  
Quaternary Deposits ◽  
Water Project

scholarly journals Geomorphological characterization and mapping of Cartagena de Indias and adjacencies

2017 ◽  
pp. 5-15
Author(s):  
Max Furrier ◽  
Germán Vargas Cuervo ◽  
Cristian Camilo Moncada
Keyword(s):  
Point Of View ◽  
Field Observations ◽  
Central Theme ◽  
Quaternary Sediments ◽  
Quaternary Deposits ◽  
Spatial Characteristics ◽  
Cenozoic Tectonics ◽  
Geological Formation ◽  
Cartagena De Indias

This work involves a geomorphological characterization of the topographic chart 23 III D, produced by IGAC, in which were developed thematic mappings and other cartographic products where the relief, both, in its morphology and its morphometric and spatial characteristics were the central theme. From the geomorphological point of view, the area in question is located on the Sinú Belt and the unconsolidated Quaternary sediments. Sinú Belt, which oldest geological formation is dated as Oligocene-Miocene, presents the highest altitudes in the mapped area reaching 146 meters in the Cerro La Popa. The lower levels of the relief in the area are the unconsolidated Quaternary deposits, which altitudes do not go over 20 meters. From mapping surveys, interpretation of orbital images, field observations and the integration of the interpretation obtained, it can be concluded that the Cenozoic tectonics is the most important setting factor in the morphological shape of the area.

scholarly journals Phytochemical analysis and fungicide potential of Pouteria ramiflora against Lasiodiplodia theobromae

2017 ◽  
Vol 35 (4) ◽  
pp. 564-570
Author(s):  
Ademir Kleber M Oliveira ◽  
Elvia Silvia Rizzi ◽  
Kelly Cristina L Pereira ◽  
José Antônio M Bono ◽  
José Carlos Pina; Rosemary Matias
Keyword(s):  
Integrated Management ◽  
Chemical Characterization ◽  
Ethanolic Extract ◽  
Control Treatment ◽  
Phytochemical Analysis ◽  
Experimental Development ◽  
Mato Grosso ◽  
Lasiodiplodia Theobromae ◽  
Culture Growth

ABSTRACT The use of plant extracts can be an alternative to reduce the use of pesticides, to control diseases and pests that affect agricultural production. The aim of this study was the chemical characterization of the extract and fractions of Pouteria ramiflora leaves and to determine its fungistatic potential on Lasiodiplodia theobromae. The ethanolic extract of dried and crushed leaves was obtained by maceration. Part of this extract was sequentially partitioned and the following fractions were obtained: hexane, dichloromethane, chloroform, ethyl acetate, n-butyl, and hydromethanol for subsequent bioassay, and qualitative and quantitative phytochemical analysis. Experimental development comprises of adding a L. theobromae mycelial disk (5 mm), obtained from pure colonies, in the middle of Petri dishes with PDA culture growth (potato-dextrose-agar) plus the aforementioned substances in different concentrations (800; 1,200; 1,600; 2,000, and 2,400 µg/mL), and a control treatment (PDA). The plates were incubated in B.O.D. (25±2°C), and the assessment was performed by measuring the diameter of the colonies until it reaches the edge of the board. The experimental design was completely randomized with five replications, and the treatments were constituted of a factorial of seven extracts/fractions and six concentrations. For the Mycelial Growth Rate Index (MGRI) obtained, the analysis of variance was performed, and when significant, the regression analysis was performed. All extract/fractions decreased MGRI of L. theobromae, as the concentrations were increased. The best MGRI reduction occurred in n-butanolic fraction, and the efficiency of this fraction may be related to the presence of flavonoids and anthraquinones. The extract and fractions of P. ramiflora, a tree from the Cerrado biome in Mato Grosso do Sul, was effective in the control of L. theobromae, which can be used as a control option in organic farming or in integrated management systems.

scholarly journals Characterization of Sarocladium oryzae and its reduction potential of rice leaf blast

2017 ◽  
Vol 47 (1) ◽  
pp. 41-52 ◽  
Author(s):  
Rafaela Araújo Guimarães ◽  
Valácia Lemes da Silva Lobo ◽  
Márcio Vinícius Carvalho Barros Côrtes ◽  
Marta Cristina Corsi de Filippi ◽  
Anne Sitarama Prabhu
Keyword(s):  
Defense Mechanisms ◽  
Phenylalanine Ammonia Lyase ◽  
Integrated Management ◽  
Conidial Suspension ◽  
Leaf Blast ◽  
Rice Leaf ◽  
Activity Of Enzymes ◽  
Rice Leaf Blast ◽  
Alternative Practices

ABSTRACT The integrated management of rice leaf blast (Magnaporthe oryzae) is carried out mainly with the adoption of chemical control. However, the search for alternative practices has grown in recent years. Thus, the variability of 28 Sarocladium oryzae isolates was evaluated for the cerulenin production, as well as its potential for reducing the severity of rice leaf blast, quantifying the activity of enzymes linked to the plant defense mechanisms. More than 55 % of the S. oryzae isolates were antagonistic to the pathogens M. oryzae, Cochliobolus miyabeanus, Thanatephorus cucumeris and Monographella albescens, and 60 % of the isolates produced cerulenin at detectable levels. Both BRM 6461 (296.0 µg mL-1) and BRM 6493 (undetectable cerulenin) inhibited the formation of M. oryzae appressoria in 89.5 % and 85 %, respectively. The BRM 6461 isolate, applied as conidial suspension and filtered, reduced the severity of rice leaf blast in 68.8 % and 75.5 %, respectively. The enzymatic activity in the presence of M. oryzae was higher for lipoxygenase at 5 h (filtered) and at 24 h and 72 h (conidial suspension) after the pathogen inoculation. For phenylalanine ammonia lyase, the highest expression was at 5 h (filtered) and 72 h (conidial suspension). The enzymes chitinase, β-1,3-glucanase and peroxidase and the salicylic acid phytohormone presented no differences, in relation to the controls (water and M. oryzae). The filtered from the BRM 6461 isolate, basically constituted by cerulenin, reduced the severity of rice leaf blast and possibly activated the defense mechanisms of the rice plants against M. oryzae.

scholarly journals Gestión Sustentable De Riesgos Y Crisis En El Turismo Mexicano Y Latinoamericano Como Problema Estratégico Para La Seguridad De Los Destinos. Implicaciones Para Ciudad Juárez, México

2016 ◽  
Vol 12 (11) ◽  
pp. 183
Author(s):  
Manuel Ramón González Herrera ◽  
Mercedes de los Ángeles Rodríguez Rodríguez
Keyword(s):  
Latin American ◽  
Integrated Management ◽  
Learning Experience ◽  
Management Strategies ◽  
Ciudad Juarez ◽  
Scientific Debate ◽  
Tourist Destinations ◽  
The City ◽  
Management Of Risk

The integrated management of risk and crisis in tourism has recently been incorporated to scientific debate and therefore to the practical management; which is why concepts and procedures are required to gain efficiency and practical operational development. The aim of this study is to justify the sustainable management process of risk and crisis in Mexican and Latin American tourism as a strategy for the security of destinations, and identify the experiences that promote a better preparedness and planning of risk and crisis caused by insecurity in Ciudad Juarez. The results of this study demonstrate that the integrated management of risk and crisis on tourism is justified as a strategic problem for security in tourist destinations, as well as the necessity to have policy and institutional framework to manage tourism safety. Then as a learning experience, an analysis of crisis and management strategies related to unsafe destinations in Latin America and Mexico are presented. Finally, the strategic projection for the preparation and planning of tourism, facing risks and crisis caused by insecurity in Ciudad Juarez is proposed. This includes the characterization of the city as an insecure cross-border tourist destination, the formulation of the strategic problem, the development of the principles to form a Sustainable and Secure Tourism System, and the planning of action areas for short-term and longterm implementation.

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