Instantaneous Rate Of Increase
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Fertility Life Table, Population Parameters and Biotic Potential of Helicoverpa gelotopoeon (Dyar) (Lepidoptera: Noctuidae)
Abstract Helicoverpa gelotopoeon is an endemic pest of South America that affects soybean and other important crops. Life tables are a fundamental tool used to study insect populations, resulting in crucial information for integrated pest management programs. Therefore, the aim of this study was to evaluate the biotic potential and the construction of a life
An. Acad. Bras. Ciênc.. Publicado em: 25/10/2018
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2. THE FORMATION BEHAVIOR OF A SINGLE BUBBLE IN POWER-LAW FLUIDS
Abstract The formation behavior of a single bubble in power-law fluids (carboxymethyl cellulose solution, CMC) and Newtonian fluids (glycerol solution) was experimentally investigated via a high-speed camera. The effects of liquid property, orifice diameter and gas flow rate on bubble volume and aspect ratio were observed. It was found that the formation tim
Braz. J. Chem. Eng.. Publicado em: 2017-01
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3. Alternative control of Tetranychus evansi Baker & Pritchard (Acari: Tetranychidae) on tomato plants grown in greenhouses
Tetranychus evansi Baker & Pritchard is an important pest of solanaceous plants, including tomatoes. This mite is characterized by a high reproductive rate, which leads to high population growth in a short period of time causing important economic damage. Control of T. evansi is mainly through synthetic acaricides. In searching for environmentally friendly c
Neotropical Entomology. Publicado em: 2010-08
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4. Calda sulfocálcica em pomares de citros: evolução da resistência em Brevipalpus phoenicis (Acari: Tenuipalpidae) e impacto sobre Iphiseiodes zuluagai (Acari: Phytoseiidae) / Lime sulfur in citrus groves: resistance evolution in Brevipalpus phoenicis (Acari: Tenuipalpidae) and impact on Iphiseiodes zuluagai (Acari: Phytoseiidae)
The use of the lime sulfur as an alternative product for controlling Brevipalpus phoenicis (Geijskes) has intensified in Brazilian citrus groves. The lime sulfur is the only efficient product used to control B. phoenicis and certified by organic producers with an average of 11 sprayings per year. Due to intense use of this product, the major objectives of th
Publicado em: 2010
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5. Resistência fisiológica e comportamental de populações de Sitophilus zeamais à permetrina, esfenvalerato e esfenvalerato + fenitrotiona / Physiological and behavioral resistance of populations of Sitophilus zeamais to permethrin, esfenvalerate and esfenvalerate + fenitrothion
The maize weevil, Sitophilus zeamais Motschulsky, 1855 (Coleoptera: Curculionidae) is considered the main pest of stored maize in Brazil and its control is achieved mainly by insecticides. The massive and intensive use of these compounds may lead to selection of resistant populations and consequently compromise the control efficacy of this insect pest in Bra
Publicado em: 2009
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6. Efeitos letais e subletais de inseticidas sobre Tamarixia radiata (Waterston, 1922) (Hymenoptera:Eulophidae) / Lethal and sublethal effects of insecticides on Tamarixia radiata (Waterston, 1922) (Hymenoptera: Eulophidae)
Tamarixia radiata (Waterston, 1922) is one of the major biological control agents of Diaphorina citri Kuwayama, vector of huanglongbing, in Brazil. This parasitoid has been very effective due to the high parasitism rates, high dispersal ability and high establishment and adaptation rates in the field. However, the efficiency of T. radiata may be affected by
Publicado em: 2009
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7. Avaliação do efeito de particulados sólidos na eficiência de um inibidor de corrosão recomendado para meios salinos com CO2
The main problem on the exploration activity on petroleum industry is the formation water resulted on the fields producing. The aggravating of this problem is correlated with the advancing technologies used on the petroleum extractions and on its secondary approach objecting the reobtainment of this oil. Among the main contaminants of the water formation are
Publicado em: 2007
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8. Resistência a fosfina: magnitude, mecanismo e custo adaptativo / Phosphine resistance: magnitude, mechanism and adaptative cost
The resistance of the insect-pests to fumigants has been frequently reported in stored grains and a present is one of the great obstacles to the control programs involving the use of chemical pesticides. This study was therefore carried out to detect phosphine resistance in populations of Tribolium castaneum, Rhyzopertha dominica and Oryzaephilus surinamensi
Publicado em: 2006
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9. Efeito da intervenção fisioterapêutica na modulação autonômica da freqüência cardíaca de pacientes com infarto agudo do miocárdio: fase I da reabilitação cardiovascular. / Effects of physiotherapy intervention on the autonomic control of heart rate in acute myocardial infarction patients: phase I of cardiac rehabilitation.
The purpose of the present study was to evaluate the effects of physiotherapeutic intervention on the autonomic control of heart rate through heart rate variability (HRV) indices at rest (supine and seated positions), during deep breath test (DBT), during an exercise protocol and during walking, in patients with acute myocardial infarction (AMI) submitted to
Publicado em: 2006
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10. Constitutive defence mechanisms among species of Capsicum pepper and their importance in managing the broad mite Polyphagotarsonemus latus (Banks, 1904) (Acari: Tarsonemidae) / Mecanismos de defesa constitutiva em espécies de pimenta Capsicum e sua importância no manejo do ácaro branco Polyphagotarsonemus latus (Banks, 1904) (Acari: Tarsonemidae)
Several plant species belonging to the same genus can have very different leaf, flower, and fruit traits, which often determine the occurrence, abundance, and diversity of organisms living on the plants. Leaves of Capsicum pepper plants vary considerably and range from trichome-covered to glabrous leaves. Polyphagotarsonemus latus (Acari: Tarsonemidae) is th
Publicado em: 2006
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11. Caracterização fluidodinamica no recobrimento de celulose microcristalina em leito fluidizado
The coating of granular materials is an operation widely used by tbe Pharrnaceutical industry with diverse purposes: to improve the product appearance, to obtain a product with controlled release of active components, to facilitate the administration through the artainrnent of a smooth surface, to identii)r the drug by colors, to prateet the drug ITom atmosp
Publicado em: 2004
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12. Water dynamics in level terraces. / Dinâmica da água em terraços de infiltração.
Terracing is a soil conservation practice that aims to reduce water and soil loss by interception of runoff that occurs when rainfall intensities exceed infiltration capacity. Actually, dimensions of terraces are being determined in an empirical way; however, a more detailed understanding of the physics behind the hydrological functions of terraces would all
Publicado em: 2001